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“BUILD STUFF” is a Software Development Conference for people who actually build stuff. We bring world-class speakers, letting them share about the latest developments, trends and innovations, as well as new directions in software development. Since launching in 2012, it’s really caught on quickly.

Recognized by developers from all over Europe, international Software Development Conference Build Stuff’15 Lithuania will feature 3 days (18-20 Nov’15) of conference sessions and 2 days (21-22 Nov’15) of workshops.

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Wednesday, November 18
 

10:35 EET

(NEKALBEJO)Paul Stack @stack72 - Creating a scalable, repeatable infrastructure with Terraform
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The age old task of racking and stacking in a physical data centre is
becoming more and more rare as more companies embrace the public
cloud. Having the ability to choose between providers such as AWS,
Azure, Digital Ocean and Google Cloud Platform makes creating
infrastructure easy. It is better to spend time developing better
services for our customers than managing infrastructure

During this talk, Paul will demonstrate how building a scalable
infrastructure on AWS becomes easy with Terraform. The talk will
demonstrate how using configuration management, pre-baked AMIs and
auto-scaling groups it gives the ability for developers to be able to
launch their own infrastructure when needed. The demo’s will include
the ability to launch instances, databases and manage user access

By the end of the talk, Paul will have demonstrated that the creation
of infrastructure now becomes part of the development lifecycle and
that the old ways of system administration is fast moving to become
infrastructure engineering. Paul will also demonstrate that the
creation of new ‘environments’ are just a change of parameters in our
infrastructure code
Speakers
avatar for Paul Stack

Paul Stack

DevOps expert, @stack92
Paul Stack is a London based developer working for OpenTable. Paul has spoken at various events throughout the world about his passion for continuous integration and continuous delivery and why they should be part of what developers do on a day to day basis. He believes that reliably... Read More →

Wednesday November 18, 2015 10:35 - 11:30 EET
4. Zeta
  Intermediate

10:35 EET

(SLIDES) Dmytro Mindra @dmytromindra - Refactoring Legacy Code
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Every programmer has to face legacy code day after day. It might be ugly, it might look scary, it can make a grown man cry. Some will throw it away and try rewriting everything from scratch. Most of them will fail.

Refactoring legacy code is a much better idea. It is not so scary when you take it in very small bites, introduce small changes, add unit tests. When code is refactored and unit tests are added, changes to functinality can be introduced.

We will take an open source c# project and will refactor it showing step-by-step examples of the techniques.

This session is full of tips and tricks you can start applying immediately. Although the code is in C#, the same principles can be applied in any language
Speakers
avatar for Dmytro Mindra

Dmytro Mindra

Test automation expert, @dmytromindra
Dmytro holds the position of Software Development Engineer in Test at Unity Technologies. He is one of the Toolsmiths who are developing tools for test automation. Prior to joining Unity, Dmytro has worked for Microsoft and Lohika. He is a frequent speaker at various conferences and... Read More →

Build Stuff 2015 Refactoring Legacy Code Dmytro Mindra v2 pdf
Wednesday November 18, 2015 10:35 - 11:30 EET
5. Theta
  Intermediate

10:35 EET

(SLIDES) Gil Tayar @giltayar - Old Gods & New: A Vision of Backend & Frontend
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What would happen if we gave front-end developers the task of building a backend server that caters to their needs? What would it do? What capabilities would it have? How would it be different from the current backend servers, built by backend developers? I explore the possibilities and try to envision a future where the front-end developers are in charge of the servers that serve their own front-end code.
Speakers
avatar for Gil Tayar

Gil Tayar

Software architect, Israel
From the olden days of DOS, to the stratospheric architectures of Wix, Gil was, is, and always will be, a software developer. Currently a software architect at Wix, he has in the past co-founded WebCollage, survived the bubble collapse of 2000, and worked on various big cloudy projects... Read More →

Gil Tayar Old Gods & New A Vision of Backend & Frontend pdf
Wednesday November 18, 2015 10:35 - 11:30 EET
3. Lambda
  Intermediate

10:35 EET

(SLIDES) Jeremy Gibbons @jer_gib - Categories for the Working Programmer
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The Haskell community is famous - perhaps infamous - for its enthusiasm for category theory. Why is this? Is it important to understand categories before you can understand Haskell programs? Is it an attempt to keep the community as pure as the language? Is it just that Haskell is a refuge for underemployed mathematicians? None of the above!

In this talk, I hope to explain a little bit about how categories can help the working functional programmer. I'll focus on categories as an organising principle, helping us to manage generic libraries. No monads were harmed during the making of this talk.
Speakers
avatar for Jeremy Gibbons

Jeremy Gibbons

Professor of Computing at the University of Oxford, UK
Jeremy Gibbons is Professor of Computing at the University of Oxford, where he is director of the part-time professional master's programme in software engineering. He has been devoted to functional programming since the late eighties; his particular interests are in patterns in functional... Read More →

Jeremy Gibbons cwp pdf
Wednesday November 18, 2015 10:35 - 11:30 EET
2. Beta
  Intermediate

10:35 EET

(SLIDES) Oren Eini (Ayende Rahien @ayende) - Building blocks of a distributed system
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In this talk, Oren will discuss the building blocks of building a reliable, transactional distributed database.
In particular, this session will cover ACID compliance, ensuring consistency between distributed nodes (with failure handling), monitoring and management, dissemination of information in the system, and more.
Speakers
avatar for Oren Eini (Ayende Rahien)

Oren Eini (Ayende Rahien)

RavenDB author, @ayende
Oren Eini is the author of Rhino Mocks, one of the most popular mocking frameworks on the .NET platform, and is also a leading figure in other well known open source projects including NHibernate, RavenDB,the Rhino Tools Suite and the Castle project. Oren Eini has over 15 years of... Read More →

Distributed databases building blocks pdf
Wednesday November 18, 2015 10:35 - 11:30 EET
1. Alfa
  Intermediate

11:50 EET

(SLIDES) Ali Kheyrollahi @aliostad - 5 Anti-Patterns in designing APIs
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This talks elaborates on the Client-Server tenet of REST which focuses on separation of concerns between the client and the server. In the first third of the talk, I will talk about what the ideal client and servers are and examples of how their responsibilities. I will touch on how the word Server has lost its meaning of "serving" and the client has been overshadowed by the focus to the API. I will also compare the API to a restaurant and how its menu is the API's REST resources.

In the rest of the talk, I look at some important anti-patterns commonly seen in the industry (each with at least one example):

1) Chauvinist Server: designing the API from server's perspective failing to hide its complexity behind its API (API designed from the server's perspective)
2) Demanding client: client enforcing its special need onto the signature of the API (certain client's limitation becomes server's default behaviour)
3) Transparent Server: server exposing its internal implementation to its clients (server's underlying or private domain bleeds into the public API)
4) Presumptuous Client: The client assuming the role of a server and engage in taking responsibilities that cannot guarantee
5) Assuming Server: Server that assumes the responsibility of tailoring the response based on what it assumes client is (e.g. browser sniffing)
Speakers
avatar for Ali Kheyrollahi

Ali Kheyrollahi

Solutions Architect, ASOS
A distributed systems practitioner and machine learning enthusiast, Ali currently is a solution architect building web-scale solutions. A performance and scalability junkie, he loves HTTP, API design, and business-modeling DDD-style. He is an author, blogger and OSS contributor and... Read More →

Ali Kheyrollahi 5 Anti Patterns in API Design buildstuff pdf
Wednesday November 18, 2015 11:50 - 12:45 EET
3. Lambda
  Intermediate

11:50 EET

(SLIDES)Aurimas Adomavicius @needoptic - Great User Experience Through Dual-Track Scrum
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This talk builds on top of the content presented at the closing keynote of Agile Tour Vilnius 2014 - "Using agile with fixed bid projects". A lot of companies struggle weaving design and development throughout their implementation of Agile. We would like to share our story of adopting agile and transitioning into a dual-track model for lean discovery, User Experience Design, and implementation. Core structure of the presentation:

- Metrics of great User Experience for the enterprise
- Dual-track - model, common pitfalls, lessons learned
- Closing the loop and using user metrics to quantify success of project (User Testing, etc.)

More information is available upon request.
Speakers
avatar for Aurimas Adomavicius

Aurimas Adomavicius

Founder of Devbridge group, @needoptic
Aurimas Adomavicius founded Devbridge Group in 2008 based on the beliefs that great software could revitalize the largest of enterprises. In seven years, Devbridge has grown to a software powerhouse with over 135 employees between three offices in Chicago, Kaunas, and Vilnius, Lithuania... Read More →

Sponsors
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Aurimas Adomavicius dual track pdf
Wednesday November 18, 2015 11:50 - 12:45 EET
2. Beta
  Intermediate

11:50 EET

Rob Ashton @robashton - The Shape an Erlang Application
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Enough introductions to Erlang, let's ignore the language for a moment and have a look at deeper things - how do you build and release Erlang projects? How do you structure Erlang projects? What are some common pitfalls to avoid when putting together Erlang applications, how do you manage dependencies?

Let's talk about the real stuff based on the last two years of my working as a full-time Erlang developer, lots of code and examples in a whirlwind tour - do try to keep up.
Speakers
avatar for Rob Ashton

Rob Ashton

Erlang professional, robashton
Eats too much, talks too much, drinks too much, obsessed with coffee - does Erlang for a living, hates everything including Erlang.

Wednesday November 18, 2015 11:50 - 12:45 EET
1. Alfa
  Intermediate

13:45 EET

(NENAUDOJA)Venkat Subramaniam @venkat_s - Rediscovering JavaScript
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JavaScript is one of those very powerful languages that is often misunderstood and underutilized. It is quite popular, yet there is so much more we can do with it. In this presentation we will deep dive into the capabilities and strengths of this prominent language of the web.
Speakers
avatar for Venkat Subramaniam

Venkat Subramaniam

Award-winning author, founder of Agile Developer, venkat_s
Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at... Read More →

Wednesday November 18, 2015 13:45 - 14:40 EET
1. Alfa
  Intermediate

13:45 EET

(SLIDES) Itamar Syn-Hershko @synhershko - Logging makes perfect - real-world monitoring and visualizations
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How to keep a real-time, low-latency and high-stakes system up and running and well-monitored? how to investigate failure cases as they happen? and how to even know something is wrong before it's too late? With logs of course. Lots of them. And then some cool stack to do stuff with it.

Forter is a company with a Decision-as-a-Service product that deals with many e-commerce transactions in real time and answers a simple but hard question: "is this a fraud attempt or not?". And if we were wrong, we pay.

In this talk I will show how we are using various technologies to power our service and keep it high-available and well under control. Among the technologies I will discuss are Apache Storm, Node.js, Riemann (state machines in Clojure, yay!), collectd, D3.js and of course the ELK stack (and beats!). Some integrations which will be mentioned include PagerDuty, Slack, Jenkings and GitHub.
Speakers
avatar for Itamar Syn-Hershko

Itamar Syn-Hershko

Distributed systems and architecture expert., @synhershko
Search technologies, distributed systems and architecture expert. Apache Lucene.NET committer and PMC member, Elasticsearch Consulting Partner, Microsoft MVP and the author of RavenDB in Action. Currently building innovative software for catching e-commerce fraudsters in real-time... Read More →

Itamar Syn Hershko Logging makes perfect BuildStuff pdf
Wednesday November 18, 2015 13:45 - 14:40 EET
4. Zeta
  Intermediate

13:45 EET

(SLIDES) Reynhout Yves @bittacklr - Trench Talk: Models and friends
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This talk takes the janitor's cut to models and friends. How they're crunched, born, tested against scenarios, how they're useful, what distinguishes them from others, how they're visualized and communicated, how they change over time, how they do not always turn out the way you want them to be, how some of them turn to mud, how they don't life in isolation, how ... well, you'll just have to attend to hear more, won't you?
Speakers
avatar for Reynhout Yves

Reynhout Yves

Software consultant, bittacklr
Yves Reynhout is a software developer turned consultant with 20 odd years of experience, both good and bad, with a bit of experience in building acronym based systems.

YvesReynhout TrenchTalk ModelsAndFriends pdf
Wednesday November 18, 2015 13:45 - 14:40 EET
3. Lambda
  Intermediate

13:45 EET

(SLIDES) Richard Minerich @rickasaurus - How We Use Functional Programming to Find the Bad Guys
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Traditional approaches in anti-money laundering involve simple matching algorithms and a lot of human review. However, in recent years this approach has proven to not scale well with the ever increasingly strict regulatory environment. We at Bayard Rock have had much success at applying fancier approaches, including some machine learning, to this problem. In this talk I walk you through the general problem domain and talk about some of the algorithms we use. I’ll also dip into why and how we leverage typed functional programming for rapid iteration with a small team in order to out-innovate our competitors.
Speakers
avatar for Richard Minerich

Richard Minerich

Microsoft MVP & F# expert, @rickasaurus
Richard Minerich is Bayard Rock’s Director of Research and Development. He is a an avid user of F# and has many years of .NET expertise. His work at Bayard Rock is largely in the areas of Entity Resolution and Machine Learning. He runs the NYC F# User Group and is co-founder of... Read More →

Richard Minerich BuildStuffLT 2015 How we use Functional Programming to Find the Bad Guys (1) pdf
Wednesday November 18, 2015 13:45 - 14:40 EET
2. Beta
  Intermediate

15:00 EET

(SLIDES) Ian Cooper @ICooper - Service Discovery and Clustering for .NET developers
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Building a distributed system means you need to consider how you will discover services, and ensure they are available. In this presentation we look at Service Discovery and Clustering approaches and tools, and show .NET developers how to work with tools such as Serf, Consul, and Zookeeper
Speakers
avatar for IAN COOPER

IAN COOPER

Polyglot Coding Architect, JustEat
Polyglot Coding Architect in London, founder of #ldnug, speaker, tabletop gamer, geek. Tattooed, pierced, and bearded. The 'guv' on @BrighterCommand

Service Discovery and Clustering for pdf
Wednesday November 18, 2015 15:00 - 15:55 EET
2. Beta
  Intermediate

16:15 EET

(SLIDES) Robert Virding @rvirding - Implementing Languages in Erlang
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This tutorial will look at the problem of implementing languages in Erlang on top of the Erlang system. Such languages can be anything from small DSL for coding a specific problem to a complete language which for some reason it is beneficial to run it natively inside Erlang. We will look at parsing languages, implementing a basic interpreter and then integrating that into an Erlang application. Finally we will discuss compiling our languages into Erlang. As an example we will use a small existing language. The topics we will look at here are quite common and apply to most languages and many of the solutions are also applicable to othere langauages and systems apart from Erlang.
Speakers
avatar for Robert Virding

Robert Virding

Pricipal Language Expert, Erlang Solutions
Robert Virding is one of the co-inventors of Erlang and was an early member of the Ericsson Computer Science Lab. He took part in the original system design and contributed much of the original libraries, as well as to the current compiler. He has always been interested in language... Read More →

2015 11 18 BuildStuff Implementing Languages in Erlang pdf
Wednesday November 18, 2015 16:15 - 17:10 EET
3. Lambda
  Intermediate

16:15 EET

(SLIDES) Sebastien Lambla @serialseb - The Simple Life of ReSTful Microservices
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Microservices are in, monolithic apps are out, everyone is high in the cloud, SOA is undead, ReSTful is never really ReSTful because pragmatism, and messaging is either really awesome or really bad. Very complicated, right? Complex systems are all around us, often made of many small and simple entities. In this talk we'll explore how complexity can be reduced to its smallest cohesive parts, communication normalized through the power of evolvable contracts, ReSTful and event-driven interfaces, and how to make a microservice swarm fly in unison.
Speakers
avatar for Sebastien Lambla

Sebastien Lambla

Caffeine IT
Sebastien Lambla has been involved in software development since receiving his first web browser, back in the days of Netsape Navigator 1.2. After a few years of hacking on javascript, he turned his attention to the .net platform, on which he would spend the next few years building... Read More →

Simple life of ReSTful services pdf
Wednesday November 18, 2015 16:15 - 17:10 EET
4. Zeta
  Intermediate
 
Thursday, November 19
 

10:30 EET

(NENAUDOJA)Venkat Subramaniam @venkat_s - Transforming Your Code to Java 8
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The new facilities in Java 8 is about the change the way we write code. Our code will become more expressive and concise. But, exactly how? In this presentation we will take several common Java code examples, discuss the core idea expressed in code, and transform that code to use the facilities in Java 8. Watch and interact as you see Java code go through a weight loss program right in front of your eyes.
Speakers
avatar for Venkat Subramaniam

Venkat Subramaniam

Award-winning author, founder of Agile Developer, venkat_s
Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at... Read More →

Thursday November 19, 2015 10:30 - 11:25 EET
1. Alfa
  Intermediate

10:30 EET

(SLIDES) Felienne Hermans @Felienne - A board game night with geeks
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So this one day, I am playing the board game Quarto (http://en.wikipedia.org/wiki/Quarto_%28board_game%29) with my friend and I wonder, can this game end in a tie, or is there always a winner?

Normal people might have squabbled or shrugged, but not us nerds! We obviously abandoned the game, took our laptops to the local pub and started hacking. In this talk I will explain how I used F# to transform this problem to satisfiability, and ran it through a sat solver to discover if it can indeed end in a tie.

I will also show how to apply the same technique to more useful problems such as scheduling and register allocation.
Speakers
avatar for Felienne Hermans

Felienne Hermans

Professor in software engineering, Felienne
Felienne is an assistant professor at Delft University of Technology. During her PhD project, she researched the applicability of refactoring and smell detection to spreadsheets, and founded a spin off based on this idea. Now a professor, she continues her mission to improve spreadsheets... Read More →

Felienne BuildStuff pdf
Thursday November 19, 2015 10:30 - 11:25 EET
2. Beta
  Intermediate

10:30 EET

(SLIDES)Motiejus Jakštys @mo_kelione - Unikernels and the future of secure cloud computing.
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Over one million AWS customers are happy with the benefits they get from Cloud Computing. One of the reasons for this is the vast array of choice they have in how they run their applications in the cloud. One choice customers have to run their applications, that is not so well known, is to use Unikernels. At the end of the talk, you will understand how Unikernels can make your applications efficient, scalable and secure.

The talk will be followed by a demonstration on how we all can take advantage of unikernels right now. An existing Linux-runnable web service will be converted to a unikernel and executed both the local desktop and on Amazon EC2.
Speakers
avatar for Motiejus Jakštys

Motiejus Jakštys

Software developer, Amazon Web Services
Motiejus calls himself a developer with a pager. His first computer hobby was tweaking the boot sequence of MS-DOS and early Windows OSes. Currently he works for the Amazon WorkMail team to deliver the greatest customer experience for businesses on the move.

Unikernels and another way of secure cloud computing pdf
Thursday November 19, 2015 10:30 - 11:25 EET
4. Zeta
  Intermediate

10:30 EET

(SLIDES)Phillip Trelford @ptrelford - Beyond Lists
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Selecting appropriate data structures is key to your application's performance.
In this session we'll go beyond lists to find orders of magnitude performance improvements.
Expect plenty of live demos and anecdotes gathered over decades of financial and AAA video game development
Speakers
avatar for Phillip Trelford

Phillip Trelford

Sean's dad, @ptrelford
Phil has been building software using a wide range of technologies for over 20 years with experience in video games, retail, leisure and financial sectors. He is an active member of the software development community, regularly attending and speaking at user groups and conferences... Read More →

Beyond Lists Build Stuff 2015. Philip pdf
Thursday November 19, 2015 10:30 - 11:25 EET
3. Lambda
  Intermediate

11:45 EET

(SLIDES) Ali Kheyrollahi @aliostad - From Power Chords to Power of Models: Insights from History of Rock Music via Machine Learning
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Who were the most influential bands of Rock history? Which bands could not exist of there was no Velvet Underground? How much Shoegazing subgenre is related to the Drone music? If I like AC/DC, what is the

Rock music history was perhaps full of drugs and alcohol but we are sobering up to represent it in terms of (social) networks and find mathematical relationship between artists, trends and subgenres. Full of DataViz and interesting relationships, we will pick up a few common clustering and network analysis algorithms to analyse the publicly available Wiki data. Expect lots of air guitar power chords and virtuoso solos.
Speakers
avatar for Ali Kheyrollahi

Ali Kheyrollahi

Solutions Architect, ASOS
A distributed systems practitioner and machine learning enthusiast, Ali currently is a solution architect building web-scale solutions. A performance and scalability junkie, he loves HTTP, API design, and business-modeling DDD-style. He is an author, blogger and OSS contributor and... Read More →

Ali Kheyrollahi Power Chords and The Power of Models pdf
Thursday November 19, 2015 11:45 - 12:40 EET
2. Beta
  Intermediate

11:45 EET

(SLIDES) Randy Shoup @randyshoup - Service Architectures at Scale: Lessons from Google and eBay
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Over time, almost all large, well-known web sites have evolved their architectures from an early monolithic application to a loosely-coupled ecosystem of polyglot microservices. While first-order goals are almost always driven by the needs of scalability and velocity, this evolution also produces second-order effects on the organization as well. This session will discuss modern service architectures at scale, using specific examples from both Google and eBay.

It will cover some interesting -- and perhaps nonintuitive -- lessons learned in building and operating these sites. It continues with some more advanced implications of a microservices architecture, including SLAs, cost-allocation, and vendor-customer relationships within the organization. It concludes by exploring a set of common service anti-patterns.
Speakers
avatar for Randy Shoup

Randy Shoup

Consulting CTO (former eBay, Google, KIXEYE), @randyshoup
Randy Shoup is the Chief Technology Officer at KIXEYE, making awesome games scalabler and reliabler. Previously, he was Director of Engineering at Google, leading several teams building Google App Engine, the world’s largest Platform as a Service. Prior to Google, he spent 6 1/2... Read More →

BuildStuff2015 ServiceArchitecturesAtScale pdf
Thursday November 19, 2015 11:45 - 12:40 EET
1. Alfa
  Intermediate

11:45 EET

(SLIDES)Liz Keogh @lunivore - Why Building the Right Thing means Building the Thing Right
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Whenever we do anything new, we make discoveries. From small changes to the UI to disruptive innovation; from learning how our team-mates like their coffee to creating brand warmth in a global enterprise; everything we do involves reacting not just to the problems we discover, but also the opportunities. In this talk we look at why experimentation underpins everything we do in technology, and why being able to move and change the right thing
Speakers
avatar for Liz Keogh

Liz Keogh

Lean and Agile consultan
Liz Keogh is a Lean and Agile consultant based in London. She is awell-known blogger and international speaker, a core member of the BDDcommunity and a contributor to a number of open-source projectsincluding JBehave. She has a strong technical background with over 15years’ experience... Read More →

Why Building The Thing Right pdf
Thursday November 19, 2015 11:45 - 12:40 EET
3. Lambda
  Intermediate

13:40 EET

(SLIDES) Dylan Beattie @dylanbeattie - Domain Architecture Isomorphism: How Spotlight Inverted Conway's Law
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Conway's Law says that "organizations which design systems ... are constrained to produce designs which are copies of the communication structures of these organizations". We've seen this happen time and time again. Some organisations are fortunate enough that their communication structure happens to match their ideal architecture. Some organisations succeed in spite of their communication structures, but all too often the communication overheads result in systems that are delivered late, over budget and unfit for purpose.

But what if we're looking at it backwards? Maybe we should start with the system design, and then create an organisational structures that reflects it?

Dylan is the systems architect at Spotlight (www.spotlight.com), the UK's leading casting service. Since 1927, Spotlight has been used to cast productions from Monty Python and James Bond to Star Wars and Game of Thrones. Originally a printed directory, Spotlight has been on the web since 1996, and was one of the first companies in the UK to embrace digital publishing. Having successfully made the transition from a paper-based directory publisher to a digital services company, we now find ourselves in the unusual position of being nearly a century old, yet facing many of the same problems as a successful startup. In this session, we'll talk about how we're restructuring Spotlight so that our systems and our structure align with the natural domain boundaries of our business. We'll talk about the challenges we've faced - how do you promote microservices and modular architecture when some of your customers still think fax machines are a pretty neat idea? How can you decouple monolithic legacy systems, identify bottlenecks, and create just the right amount of architecture? We'll talk about systems integration patterns, and how to run the New Shiny alongside your legacy systems to avoid the risk of "big bang" launches. And you never know - we might even throw in a couple of good showbusiness stories.
Speakers
avatar for Dylan Beattie

Dylan Beattie

Systems architect, @dylanbeattie
Dylan wrote his first web page in 1992 and never looked back. He's currently the systems architect at Spotlight, the UK's leading casting service for professional actors. Dylan works on distributed systems, ReST APIs and microservices, and the challenges involved in introducing scalable... Read More →

Dylan Beattie Dylan Beattie Conway's Law BuildStuff 2015 pdf
Thursday November 19, 2015 13:40 - 14:35 EET
2. Beta
  Intermediate

14:55 EET

(SLIDES) Ian Cooper @ICooper - Brighter for robust, scalable .NET apps
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Brighter http://iancooper.github.io/Paramore/Brighter.html is an OSS library for .NET that allows you to build a robust, fault-tolerant Command architecture for .NET. It supports pipelined execution of commands both in-process and via a Task Queue, and was highlighted in the May 2015 ThoughtWorks Technology Radar. In this presentation we look at what Brighter is, how it does it, and show you how to build robust distributed system with it.
Speakers
avatar for IAN COOPER

IAN COOPER

Polyglot Coding Architect, JustEat
Polyglot Coding Architect in London, founder of #ldnug, speaker, tabletop gamer, geek. Tattooed, pierced, and bearded. The 'guv' on @BrighterCommand

A Brighter Future pdf
Thursday November 19, 2015 14:55 - 15:50 EET
3. Lambda
  Intermediate

14:55 EET

(SLIDES) Kristjan Korjus @kristjankorjus - Artificial Intelligence that plays Atari video games: How did DeepMind do it?
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We replicated the work of DeepMind as an open source project and created an artificial intelligence that can learn to play different video games in a super-human level without any human intervention. I will talk about deep learning, reinforcement learning and their combination called deep Q-Network.
Speakers
avatar for Kristjan Korjus

Kristjan Korjus

Co-author of "Bedside Reading About Mathematics", UK
Co-author of the 3rd best selling book in Estonia in 2014 "Bedside Reading About Mathematics", Kristjan co-founded matemaatik.ee which was an MIT Global Start-up Conference finalist and Garage48 Hackathon winner. In his spare time, Kristjan led a successful GitHub project "Replicating DeepMind" and is finishing a Ph.D. in Machine Learning. He holds a first class master's degree in mathematics from The University... Read More →

Presentation5 build stuff 2015 pdf
Thursday November 19, 2015 14:55 - 15:50 EET
2. Beta
  Intermediate
 
Friday, November 20
 

11:20 EET

(NENAUDOJA)Venkat Subramaniam @venkat_s - Let's Get Lazy
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How can big data or highly responsive applications scale to the increasing demands for speed and short response time? Adding more servers to the cluster is not the answer. The smartness comes from being lazy as laziness can translate to efficiency and scalability. In this presentation we will learn about what lazy evaluation is, explore some data structures and APIs that promote lazy execution, and tie it back into scalability and efficiency.
Speakers
avatar for Venkat Subramaniam

Venkat Subramaniam

Award-winning author, founder of Agile Developer, venkat_s
Dr. Venkat Subramaniam is an award-winning author, founder of Agile Developer, Inc., and an instructional professor at the University of Houston. He has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia, and is a regularly-invited speaker at... Read More →

Friday November 20, 2015 11:20 - 12:15 EET
1. Alfa
  Intermediate

11:20 EET

(SLIDES) Bozhidar Batsov @bbatsov - CIDER: Building a Clojure Interactive Development Environment that Rock in Emacs
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This talk is dedicated to CIDER - an interactive development environment for Clojure. CIDER is the most popular programming environment in the world of Clojure these days and it's quite unique, for it's not a plugin for IntelliJ, Visual Studio or Netbeans; quite the contrary - it's built on top of the Emacs editor and it still provides a ton of cool features that most IDE users have come to love and expect from a modern programming environment.

We'll discuss whether (why) it's a good idea to build dev tools on top of Emacs, the history of the project, its current state and the bold plans for its future.

Be advised - by the end of the talk you'll probably become an Emacs user for life, so attend it at your own risk! :-)
Speakers
avatar for Bozhidar Batsov

Bozhidar Batsov

VP of Engineering
Bozhidar loves computers in general and programming in particular. His fanatic devotion to Emacs is known world-wide. Bozhidar spends a lot of his time on GitHub, contributing to various Ruby, Clojure and Emacs Lisp projects. Believe it or not, Bozhidar has interests outside computers... Read More →

cider buildstuff pdf
Friday November 20, 2015 11:20 - 12:15 EET
2. Beta
  Intermediate

11:20 EET

(SLIDES)Chris Condron @CLCondron - Teaching my Team CQRS
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I first attended one of Greg's workshops on CQRS and message driven architectures several years ago and fell in love with the design patterns. However what seems so clear to me seems to often elude even senior developers who I try to introduce it to. The key element I've found in getting developers to write code using the new patterns is to get them thinking in the new patterns. Solving problems in the new way, rather than what they have always done. I'll be talking about the problems I've seen on different teams moving from a training context to solving problems in production code under a deadline. Then we'll cover some of the key mental blocks to adopting the new methodologies. Finally walking through successful approaches that have gotten people thinking and solving problems in the new ways.
Speakers
avatar for Chris Condron

Chris Condron

Software Engineer and Architect, @CLCondron
Software Engineer and Architect for 15 + years in Telecom, Financial Services, and Medical Devices. Currently building high performance low latency distributed systems using message oriented architectures, DDD, and CQRS.

Friday November 20, 2015 11:20 - 12:15 EET
4. Zeta
  Intermediate

11:20 EET

Amanda Laucher @pandamonial - Property Based Testing: Shrinking the Risk in Your Code
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Perhaps you’ve been hearing a lot about Haskell programmers being absolutely certain that their code is correct but you haven’t taken the leap into day to day Haskell development. Do not despair, there are techniques that can allow you to have confidence in your code without needing to change your development stack. In fact, you can use the same testing techniques Haskellers use without even using a language with a static type checker.

In this session we will be looking at Property Based Testing, and how this approach can allow us to avoid thousands of lines of testing code when ensuring that our code meets specification. Property Based Testing generates inputs based on the properties of the program that we stipulate, and so are based on the business logic, in the same way that types are. Furthermore, if the test fails, a good framework will shrink the problem to the smallest possible data set that gives an error, helping to pinpoint the bug. This session requires no previous knowledge of free-monads, co-products, or other terms you may have grown to hate. 
Speakers
avatar for Amanda Laucher

Amanda Laucher

Graph databases expert, @pandamonial
Amanda Laucher has been working with technology her entire life. Some of her favorite childhood memories include working with punch cards alongside her grandmother or learning Morse code from her dad. Solving complex business problems with code is her passion, mostly using graph databases... Read More →

Friday November 20, 2015 11:20 - 12:15 EET
3. Lambda
  Intermediate

13:15 EET

(SLIDES) Michael Feathers @mfeathers - The Slow Steady Industry Move Toward Tacit Programming
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We're all aware that the industry is moving from Object-Orientation toward Functional Programming, but the move may be even deeper than that. As we adopt a strongly compositional style using tools like LINQ, Rx, Java Streams, and Ruby's Enumerable, we find that we approach a type of programming that is closer to what is common in the APL family of languages. This talk will explore the trend and its possible ramifications.
Speakers
avatar for Michael Feathers

Michael Feathers

WELC author, @mfeathers
Michael Feathers is the Founder and Director of R7K Research & Conveyance, a companyspecializing in software and organization design. Prior to forming R7K, Michael was the ChiefScientist of Obtiva and a consultant with Object Mentor International. Over the past 20 years hehas consulted... Read More →

tacit pdf
Friday November 20, 2015 13:15 - 14:10 EET
1. Alfa
  Intermediate

13:15 EET

(SLIDES) Pawel Sawicz @sawiczpawel - Mutate your code and reveal you true test coverage
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Session is about mutation testing, why and when you should mutate your code. What benefits comes by mutating your code. Simply test your own tests. It's very helpful tool with TDD where you are exposed to a lot of wrong assumptions and simple syntactic errors that can propagate other errors.
Speakers
avatar for Pawel Sawicz

Pawel Sawicz

API Developer, @sawiczpawel
Pawel work for JustGiving as a API Developer, recently graduated Wroclaw University of Technology. Everyday trying to figured out something new that would help DevCommunity. Big fan of IPA.

Pawel Sawicz pdf
Friday November 20, 2015 13:15 - 14:10 EET
5. Theta
  Intermediate

13:15 EET

(SLIDES) Sam Elamin @samelamin - Monoliths to Microservices. A Journey
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Your monolithic system is a pain to work with and maintain. Moving to a distributed system will solve all your problems and you will be in developer heaven. Right? You will be working with cool technologies and amazing concepts. Plus, it's Microservices! So what could possibly go wrong?

In this talk Sam Elamin will relate his real life experience migrating a single ASP.NET application with a monolithic database to a distributed system dealing with £100,000 transactions every hour. Sam will cover the challenges faced, the lessons learned, and offer some final takeaways.

This "from the trenches" story will show you the pitfalls to avoid when doing Microservices.
Speakers
avatar for Sam Elamin

Sam Elamin

Software Craftsman, Samelamin
Sam has been a software developer professionally for the last 8 years, but has been programming just for fun from a long-long time ago! Sam loves Agile, TDD and Clean code. But over all the software craftsmanship movement, he is a DDD evangelist and of course an active member and... Read More →

Monoliths To Microservices A Journey pdf
Friday November 20, 2015 13:15 - 14:10 EET
2. Beta
  Intermediate

13:15 EET

Pavlo Baron @pavlobaron - Why monitoring sucks, and how to improve it
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Computers are good at solving recurrent problems. Much better than humans are. And still, we keep them dumb with a set of simplest heuristics when it's about monitoring complex infrastructures, leaving the largest part of the job - issue recognition and analysis - to ourselves. This might work with a server or two, but definitely won't in a larger setup, even if we convince ourselves it would. We need new approaches to monitoring our systems that combine the best of software engineering and mathematics. In this talk, I will explain the vision and the targets towards it.
Speakers
avatar for Pavlo Baron

Pavlo Baron

Big Data expert, @pavlobaron
Pavlo Baron is lead data technologist with codecentric AG. His passion are high-performance, distributed systems and large data sets – the infrastructure behind what they call Big Data. Pavlo is frequent conference speaker and has written four German books: "Big Data for IT decision... Read More →

Friday November 20, 2015 13:15 - 14:10 EET
3. Lambda
  Intermediate

14:30 EET

(SLIDES) Darach Ennis @darachennis - Our Little Pony https://cdn.rawgit.com/darach/my_little_pony/master/our-little-pony.html#/
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Pony is a relatively new LLVM based compiled language supporting ease of integration with native code. This talk takes a deep dive into Pony and the mature Erlang ecosystem. Plus, who doesn't like 'ponies'?

Talk objectives:

- Learn a little about Pony itself, using Pony, and extending Pony with native extensions.
- Compare and contrast to the Erlang ecosystem on a joyride through the fields of pony.
- There will be pictures of ponies, natch.

Speakers
avatar for Darach Ennis

Darach Ennis

www.thingk.io
Founder of ThingK.io, an early stage stealth startup in London, UK.Darach is a polyglot programmer who has spent 20 years building distributed event based systems for investment banks, networking hardware manufacturers ( literally the internet that connects the internet of things... Read More →

Friday November 20, 2015 14:30 - 15:25 EET
4. Zeta
  Intermediate

14:30 EET

(SLIDES) Ben Hall @ben_hall - Real World Experience Report on Running Docker
Rate the session!
Docker has taken the world by storm and is rapidly becoming the de-facto way to deploy applications and services. With a new development and deployment approach it brings new challenges and best practices.

During this talk Ben will discuss his experiences of working with Docker on a daily basis as a development platform and deploying it into production.

Ben discuss his experience with using Docker around areas such as:
- Development, Test and Build lifecycle
- Building and creating small, streamlined, containers
- Auto-discovery architecture
- Scaling production nodes
- Resource management
- Security concerns and considerations

At the end attendees will understand the advantages along with the potential issues of running Docker based on real world experience. This should enable them to identify how to migrate and build their own applications using a container based architecture.
Speakers
avatar for Ben Hall

Ben Hall

Startup entrepreneur, ben_hall
Ben is the founder of Ocelot Uproar, a company focused on building products loved by users while helping other companies succeed with building their own businesses. He has worked as systems administrator, tester and developer, finding time to become a published author and conference... Read More →

Real World Docker pdf
Friday November 20, 2015 14:30 - 15:25 EET
3. Lambda
  Intermediate

14:30 EET

(SLIDES)Rachel Reese @rachelreese - Patterns and Practices for Real-World Event-driven Microservices
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At Jet.com, we've based our architecture around cloud-based event-driven microservices, and over the last several months, have schooled ourselves on what works and what doesn't. This session will walk you through the lessons we have learned on our way to developing our platform.
Speakers
avatar for Rachel Reese

Rachel Reese

Software engineer and math geek, @rachelreese
Rachel Reese is a long-time software engineer and math geek who can often be found talking to random strangers about the joys of functional programming and F#. She currently works for Jet.com in NYC. She has helped run the Nashville F# User group, @NashFSharp, and the Burlington... Read More →

P&P Microservices JET2 pdf
Friday November 20, 2015 14:30 - 15:25 EET
2. Beta
  Intermediate

15:45 EET

(SLIDES) Jonathan Graham @graham_jp - Reactive Systems: From Drug Development to Functional Programming
Rate the session!
Systems built as Reactive Systems are more flexible, loosely-coupled and scalable. This makes them easier to develop and amenable to change. They are significantly more tolerant of failure and when failure does occur they meet it with elegance rather than disaster.1

The approach to the design and development of manufacturing processes for the production of new drugs within the pharmaceutical industry has changed dramatically over the last decade. Focus is given to designing systems that are responsive to issues and constraints, through knowledge of the impact of exceeding standard operating ranges and the use of real-time analytics; resilient to failures that could occur at any point within the system; elastic to changing demands that occur during the lifecycle of manufacture through a flexible and well understood approach to scalability; and message driven, whereby the resources used and specifications required for a specific segment of the system are derived by the demands external to that segment. With Quality by Design2 applied throughout the development process, the industry is now beginning to reap the benefits from the flexibility that Reactive Systems provide in production.

In this presentation we will use learning’s from the Pharmaceutical Industry to explore the extent of the Reactive Manifesto for software development, and we will look specifically at how this relates to functional programming. The public demands high and consistent quality from the medicines that we take, and we should demand that same quality from the software that we develop. If you are passionate about the quality of your code, then this talk will provide you with a new perspective on how you think about your craft.


1 http://www.reactivemanifesto.org
2 http://en.wikipedia.org/wiki/Quality_by_Design
Speakers
avatar for Jonathan Graham

Jonathan Graham

Live coding musician, graham_jp
Having spent many years in process design, developing drugs for pharmaceutical giant GlaxoSmithKline, Dr. Jonathan Graham decided to take a twist in his career by letting another passion take the drivers seat. His love for music alongside his well-honed systems thinking skills made... Read More →

jonathan graham JonathanGraham ReactiveSystemsPresentation pdf
Friday November 20, 2015 15:45 - 16:40 EET
4. Zeta
  Intermediate

15:45 EET

(SLIDES) Paul Stack @stack72 - Continuous Delivery - The Missing Parts
Rate the session!
A lot of developers have started to believe that hooking Visual Studio
up to Azure and pushing code direct from their machines is CD. As much
as I hate to say it, it isn't. Continuous delivery has so many more
moving parts required to work together.

As we discuss concepts such as config management, orchestration,
security, monitoring and logging, this talk will help developers
realise that continuous delivery is something we need to continually
measure, learn and adapt to make us a higher achieving organisation.
Speakers
avatar for Paul Stack

Paul Stack

DevOps expert, @stack92
Paul Stack is a London based developer working for OpenTable. Paul has spoken at various events throughout the world about his passion for continuous integration and continuous delivery and why they should be part of what developers do on a day to day basis. He believes that reliably... Read More →

CD MissingParts pdf
Friday November 20, 2015 15:45 - 16:40 EET
5. Theta
  Intermediate
 

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