A single conversation with a wise man is better than ten years of study.
~ Chinese Proverb ~


  • Andres Almiray

    Andres is a Java/Groovy developer and Java Champion, with more than 13 years of experience in software design and development. He has been involved in web and desktop application developments since the early days of Java. He has also been teacher of computer science courses in the most prestigious education institute in Mexico. His current interests include Groovy and Swing. He is a true believer of open source and has participated in popular projects like Groovy, Griffon, JMatter and DbUnit, as well as starting his own projects (Json-lib, EZMorph, GraphicsBuilder, JideBuilder). Founding member and current project lead of the Griffon framework. He blogs periodically at http://jroller.com/aalmiray. You can find him on twitter too as @aalmiray. He likes to spend time with his beloved wife, Ixchel, when not hacking around.

  • Anton Arhipov

    Anton Arhipov is Software Engineer and JRebel Product Lead at ZeroTurnaround. Professional interests include programming laguages, middleware and tooling. Java enthusiast, vim fan, IntelliJ addict, Anton is also a JetBrains Academy member. Anton has delivered talks at international Java conferences: Jfokus, JavaZone, EclipseCon, JavaOne, 33rd Degree, GeeCON and various JUG meet ups.

    Twitter: @antonarhipov, LinkedIn: http://linkd.in/aarhipov

  • Grzegorz Balcerek

    Grzegorz has many years of programming experience. He participated in IT projects in various industries and countries, using a wide range of technologies. A significant portion of these projects involved implementation of information systems in telecommunication companies and banks. He is the author of “Język programowania Scala”.

  • Michał Bartyzel

    Michał Bartyzel is a consultant and trainer at BNS IT company. Every single day he works with software developers helping them dealing with legacy code and software architecture. His interests and experience covers domains such a: manufacturing execution, telecommunication, e-commerce and finances.

    Michal effectively works for customers on business-IT communication issues.

    His thoughts can be followed on twitter @MichalBartyzel or his blog http://mbartyzel.blogspot.com .

  • Tim Berglund

    Tim is a full-stack generalist and passionate teacher who loves working with people as much as he loves to code. He believes the best developer is one who is well-informed of specifics and can also make deep connections between software development and the broader world. He has recently been exploring non-relational data stores, why professionalized product management is a global suboptimization, and of course everything related to Git. He does not really believe that it is possible to teach, but rather believes that it is his responsibility to create an environment in which people can learn.

    He is also a poet, having composed and produced companion videos for Oh, The Methods You'll Compose and The Maven, with another project currently in the works. If you've been in his Git classes, you've seen some famous poems make their way into the world's best version control system.

    Tim is a speaker internationally and on the No Fluff Just Stuff tour in the United States, and is co-president of the Denver Open Source User Group, author of the Gradle Liquibase Plugin, the maintainer of the Ratpack web framework, co-presenter of the best-selling O'Reilly Git Master Class, co-author of Building and Testing with Gradle, a member of the O'Reilly Expert Network, and a member of the GigOM Pro Analyst Network. He occasionally blogs at timberglund.com.

    He lives in Littleton, CO, USA with the wife of his youth and their three children.

  • Marek Berkan

    Odpowiada za proces implementacji systemów informatycznych, a następnie za ich długofalowy rozwój i utrzymanie. Od 12 lat programuje w J2EE, od 7 lat pracuje nad dynamicznie rozwijającym się projektem w technologii J2EE, koordynując prace zespołu programistów. Codziennie stawia czoła nowym wymaganiom project managerów oraz zgłoszeniom błędów z serwisu. W swojej pracy kładzie nacisk na pragmatyczne rozwiązania, gwarantujące stabilność i niezawodność systemów. Jego celem zawodowym jest gładkie wdrażanie nowych funkcjonalności przy jednoczesnym minimalizowaniu możliwych błędów.

  • Adam Bien

    Consultant and author Adam Bien (adam-bien.com) is an Expert Group member for the Java EE 6 / 7, EJB 3.X, JAX-RS and JPA 2.X JSRs. He has worked with Java technology since JDK 1.0 and with Servlets/EJB 1.0 and is now an architect and developer for Java SE and Java EE projects. He has edited several books about JavaFX, J2EE, and Java EE, and he is the author of Real World Java EE Patterns—Rethinking Best Practices and Real World Java EE Night Hacks (http://press.adam-bien.com). Adam is also a Java Champion, Top Java Ambassador 2012, and JavaOne 2009, 2011 Rock Star and frequently delivers Java EE workshops at Munich airport: http://airhacks.com.

  • Grzegorz Borkowski

    Grzegorz Borkowski has worked as Java Developer for 8 years. He is a Java Focus Group Leader in the Rule Financial office in Lodz, delivering software solutions for the largest investment banks in London and New York. For several years, his main focus has been on Java EE and Spring-based solutions. He is a fun of clean code, DDD, BDD, and agile methodologies.

  • Jeff Brown

    Core member of the Grails development team, Jeff Brown is a Senior Engineer with SpringSource. Jeff has been involved in designing and building object oriented systems for over 15 years. Jeff's areas of expertise include web development with Groovy & Grails, Java and agile development. Jeff is co-author of Apress' Definitive Guilde To Grails 2.

  • Tom Bujok

    Tom is a software engineer and consultant proficient in the field of software architecture currently working for centeractive ag in Bern, Switzerland. He has a vast experience in messaging systems, business process management, high-throughput processing and enterprise service bus technologies. For the last few years he has been working on numerous assignments fulfilling a range of roles, particularly dealing with design and development of small to large scale systems, mostly on the JVM. Tom has earned a Masters Degree in Computer Science and holds several technical certifications. He is the founder and the project lead of soap-ws, cougar and p2-maven-plugin open-source projects [www.reficio.org/projects]. Tom's spectrum of activities also includes a part-time involvement in conceptual research on the topic of Service Oriented Architecture (IEEE article, KTI). Finally, he is very keen on tutoring, presenting and live coding, especially in a non-fluffy way.

  • Piotr Burdyło

    Developing IT systems since 2002. In 2004 joined TouK, a start-up Polish ISV at that time, as a Java developer and has been helping grow the company ever since. In the meantime took part in projects in many roles: from a tester to a system architect to a project manager. From the dawn of time a believer in the agile values, though only found out they are actually called “agile” in 2008. Later on introduced Scrum and then Kanban in TouK. Currently holding a position of the board member; from time to time managing projects or coding a little bit. Experienced in delivering systems for enterprises, mainly in telco and finance areas.

    Really passionate about making companies work as effectively as possible. Coaching teams and evangelizing agility. Strongly believing in simplicity (make IT simple), versatility (developers not programmers) and quality (thou shalt not do harm to software).

    An active member of the Agile Warsaw community, delivering there a presentation once in a while. In free time doing too much stuff - traveling a lot, scuba&free diving here and there, in between - playing a guitar in a rockmetal band.

  • Bartosz Czerwiński

    Bartosz is a computer professional focused on software engineering with a solid background in IT industry. He gained his experience by being involved in multiple, both commercial and research, projects in various roles, including systems administrator, software engineer, IT consultant and a team leader. Bartosz's research interests focus on, in particular, component-oriented software engineering, continuous automation, and virtualization. Currently, he is a Senior Software Engineer and a Trainer at Luxoft Poland.

  • Erik Dörnenburg

    Erik Dörnenburg is the Head of Technology Europe at ThoughtWorks where he helps clients with the design and implementation of enterprise software. With experience in Java, .NET, and other environments Erik is continually exploring new technology. Frequent exposure to overly complex software has made him interested in simple architectures and software visualisation as means to help people better understand architecture.

    Erik’s career in enterprise software began in the early nineties on the NeXTSTEP platform, and throughout his career he has been an advocate of agile values and Open Source software. He holds a degree in Informatics from the University of Dortmund and has studied Computer Science and Linguistics at University College Dublin.

  • Henrik Engström

    Henrik has worked as a professional software developer since 1998. During these years his main focus has been on highly transactional systems within the finance, retail and e-gambling industries. He is currently based in Sweden and works in the Akka team at Typesafe.

  • Wojtek Erbetowski

    Wojtek works on the server side, mostly providing RESTful APIs for mobile engineers (and that is the rest of the company) using all the not-so-new-anymore techniques to provide stable and agile software.

    He's advocate for not reinventing the wheel on mobile development and using all the experience JVM developers have gained over the past years. That includes CI, TDD, Agile and OOP (the right way) and even the Continuous Delivery. He worked on AMEBA build tool and lately created RoboSpock library to bring the power of Spock testing framework goodness to the Android.

    As an absolute technology junkie he's also blogging and tweeting.

  • Axel Fontaine

    Axel Fontaine is a software development expert and independent consultant based in Munich.

    He specializes in Continuous Delivery and hates complexity with a passion.

    He is the founder and the project lead of Flyway, the agile database migration framework for Java.

    He regularly speaks at conferences and user groups. You can find him online at axelfontaine.com and on Twitter as @axelfontaine.

  • Mario Fusco

    Mario is a senior software engineer at Red Hat working at the development of the core of Drools, the JBoss rule engine. He has a huge experience as Java developer having been involved in (and often leading) many enterprise level projects in several industries ranging from media companies to the financial sector. Among his interests there are also functional programming and Domain Specific Languages. By leveraging these 2 passions he also created the open source library lambdaj with the purposes of providing an internal Java DSL for manipulating collections and allowing a bit of functional programming in Java.

  • Oliver Gierke

    Oliver Gierke is engineer at SpringSource, a division of VMware, project lead of the Spring Data JPA, MongoDB and core module and member of the JPA 2.1 expert group. He has been into developing enterprise applications and open source projects for over 6 years now. His working focus is centered around software architecture, Spring and persistence technologies. He is regularly speaking at German and international conferences as well as author of technology articles and the first book on Spring Data.

  • Tugdual Grall

    Tugdual "Tug" Grall is a Technical Evangelist at Couchbase, an open source advocate and a passionate developer. He currently works with the European developer communities to ease the NoSQL adoption. Tugdual is contributing to the Java and Node/JavaScript Couchbase SDKs.

    Before joining Couchbase Tugdual was CTO of eXo the company behind the revolutionary online development tools Cloud-IDE and the open source social platform eXo Platform. Earlier Tugdual has work as Product Manager and Developer on the Oracle Middleware focusing on Java EE platform.

    Tug has spoken at number of conferences including Devoxx, Open Source Day Poland, Google I/O, JavaOne and many meetups and user groups. He is co-founder of the Nantes JUG (Java User Group) that holds since 2008 monthly meeting about Java ecosystem. He also writes a blog available at http://tugdualgrall.blogspot.com and available @tgrall Finally when he finds the time to do it, he develops the site www.resultri.com a Google App Engine based application.

  • Gerrit Grunwald

    Gerrit Grunwald is working as a Senior Software Engineer at Canoo Engineering AG (Basel, Switzerland). He has been involved in Java desktop application developments and controls development. His current interests include JavaFX, HTML5 and Swing especially development of custom controls in one of these technologies. He is also interested in Java driven embedded technologies like SunSPOT‘s, BeagleBoard and Raspberry PI. He is a true believer in open source and has participated in popular projects like JFXtras as well as his own projects (SteelSeries Swing, SteelSeries Canvas). He is an active member of the Java community, where he founded and lead the Java User Group Münster (Germany) and co leads the JavaFX community. He is an international speaker at conferences and user groups. He also blogs on a regular basis on his blog that could be found at http://www.harmonic-code.org

  • Hadi Hariri

    Hadi Hariri is a developer, speaker and Technical Evangelist at JetBrains. His passions include software architecture and web development. Book author and frequent contributor to developer publications, Hadi has been speaking at industry events for over a decade. He is based in Spain where he lives with his wife and three sons. He is also an ASP.NET MVP and ASP.NET Insider.

  • Katrin Hippler

    Katrin Hippler is a Talent Marketing Manager, Europe at Elance.com, the world’s leading platform for online work. She has the operational responsibility for two global Marketing Programs and supports growing the company’s visibility in the European market.

    Katrin holds an M.A. in Business and Applied Cultural Sciences from the Leuphana University of Lüneburg.

  • Tomek Kaczanowski

    Tomek Kaczanowski works as a developer at CodeWise (Krakow, Poland). He is an experienced Java developer, focused on code quality, testing and automation.

    Test infected TDD enthusiast, open-source proponent, agile worshipper. Strong inclination towards sharing his knowledge. Blogger at http://kaczanowscy.pl/tomek. Occasional article writer and conference speaker. Recently published his first book - Practical Unit Testing with TestNG and Mockito - http://practicalunittesting.com

  • Steffen Krause

    Steffen Krause is a Technical Evangelist at Amazon Web Services. After working for many years in the implementation of complex information management, BI and database solutions for customers of all sizes, he now works on highly scalable, cost effective IT solutions in the cloud. Steffen is a regular speaker at international conferences on databases and cloud services

  • Marcin Kwiatkowski

    Marcin is a software developer working for ThoughtWorks. He strongly believes that mobile is the new web. Over the years, he’s worked with many different technologies, from Java and JavaScript to Ruby and Objective-C. He's a keen proponent of agile practices like TDD, refactoring and continuous integration. You can some of his work on https://github.com/marcinkwiatkowski.

  • Joonas Lehtinen

    Joonas Lehtinen is one of the core developers of Vaadin, a Java-based framework for building business-oriented Rich Internet Applications (RIAs). Joonas has been developing applications for the web since 1995 with a strong focus on Ajax and Java. He is the founder and CEO of Vaadin Ltd.

  • Martin Lippert

    Martin works at VMware on Eclipse-based developer tooling for the Spring framework, Cloud Foundry, and JavaScript. He co-leads the team that ships the famous Spring IDE, the SpringSource Tool Suites, and the Cloud Foundry Integration for Eclipse, and slowly gets involved in JavaScript tooling. Martin is also co-founder of it-agile GmbH, one of the leading agile companies in Germany, interested in agile and lean software development, refactoring techniques and shipping high-quality open-source software.

  • Jakub Marchwicki

    Software composer, engineer, technical consultant, manager; standing on both technical and business leg of every solution. Among many hats he has been wearing, the latest one is the head of software delivery at Young Digital Planet - an interactive publisher.

    Over past 10 years I’ve been getting hands dirty in multiple environments, securing both technical as well as the business side of the things. An engineer with a human friendly interface. Working with a wide set of languages / frameworks, lead delivery teams, liaising with customer, focused on research and development as well as on core product delivery. With Java being his primary tool for most of the time, he’s happy with falling back to different languages, stacks.

  • Luca Milanesio

    Luca Milanesio is the co-founder of GerritForge (http://www.gerritforge.com) and has more than 20 year of Software Development and Application Lifecycle Management experience. He is contributor of Jenkins CI project (www.jenkins-ci.org), Gerrit code-review (http://code.google.com/p/gerrit/) and co-founder of the Mobile Client project for Jenkins CI (http://www.jenkins-ci.mobi).

    Luca is an enthusiast developer and contributor of Git and Gerrit; fuelled innovation in large enterprises in Northern Europe and Canada by introducing them in the company code-lifecycle alongside with tools and technologies.

    He moved to London UK and founded his own company (http://www.lmitsoftware.com) to actively support all the technologies behind Agile ALM, from SCM, issue-tracking, continuous integration and code-review.

  • Ted Neward

    Ted Neward is an independent consultant specializing in high-scale enterprise systems, working with clients ranging in size from Fortune 500 corporations to small 20-person shops. He speaks on the conference circuit, including the No Fluff Just Stuff Symposium tour, discussing Java, .NET and XML service technologies, focusing on Java-.NET interoperability. He has written several widely-recognized books in both the Java and .NET space, including the recently-released “Effective Enterprise Java”. He lives in the Pacific Northwest with his wife, two sons, four video-game consoles, thousands of books (on programming and otherwise), and eight PCs.

  • Dan North

    Dan North has been coaching, coding and consulting for over 20 years, with a focus on applying systems thinking and simple technology to solve complex business problems. He uses techniques from Lean operations, Theory of Constraints and Agile software development to help IT organisations anticipate and respond to the challenges of changing business needs.

    Dan is the originator of Behaviour-Driven Development, an agile approach to software development that encourages teams to deliver the software that matters by emphasising the interactions between stakeholders. He also proposed Deliberate Discovery, which challenges assumptions around software planning and estimation. He argues that there are no best practices and that everything we do is subject to opportunity cost.

    He is a popular keynote and session speaker at international technology conferences, on topics as diverse as software architecture, behavioural psychology, simplicity, uncertainty and learning. His presentation style has been described as Eddie Izzard meets the Architect from The Matrix.

  • Pratik Patel

    Pratik Patel is the CTO of Atlanta based TripLingo (http://www.triplingo.com/). He wrote the first book on 'enterprise Java' in 1996, "Java Database Programming with JDBC." He has also spoken at various conferences and participates in several local tech groups and startup groups. He's in the startup world now and hacks iOS, Android, HTML5, CSS3, JavaScript, Rails, and ..... well everything except Perl.

    Pratik's specialty is in large-scale applications for mission-critical and mobile applications use. He has designed and built applications in the retail, health care, financial services, and telecoms sectors. Pratik holds a master's in Biomedical Engineering from UNC, has worked in places such as New York, London, and Hong Kong, and currently lives in Atlanta, GA.

  • Jarosław Pałka

    Jarek spent last 10 years of his life in IT working as database and system administrator, developer, architect, manager and "on site disaster engineer ". He was involved in small, medium and horribly and nonsense large systems, from "waterfall" through Agile to "no methodology" methodology. It all lead him to conclusion that it doesn't matter what you do as long as you do it right, keep it simple and use the right tool to do the job for you. In the meantime he fell in love it TDD, Software Craftmanship and beautiful and simple ideas like REST, JavaScript and NOSQL. From time to time you can hear his low quality jokes about architecture on conferences in Poland. He is trying to make a world a better place as member of SSEEP and blog author at http://primitive.jogger.pl.

  • Sven Peters

    Sven Peters is a software geek working as an ambassador for Atlassian. He has been developing Java applications for over 12 years and leading small teams using lean methodologies. Sven likes effective software development and cares about the motivation of developers.

  • Karel Piwko

    Karel Piwko is a software engineer at Red Hat, Inc., currently leading JBoss Web Framework Kit testing effort. He is actively participating in improving Java Enterprise applications testability.

    Karel is currently involved in Arquillian testing platform, leading numerous extensions like Arquillian Drone and Arquillian Android. He is also leading ShrinkWrap Resolver effort, allowing users to easily access Maven world from Java code. He focuses on AJAX, Web User Interface and mobile testing. Before joining web interface world, he was working with XML databases.

  • Adam Pohorecki

    Adam works as a Senior Developer for Lunar Logic, the oldest Ruby consultancy in Poland. He has been practicing TDD for over four years and Ping Pong Pomodoro Pair Programming for almost a year. Being an aspiring software craftsman, he started the Software Craftsmanship Kraków group (SCKRK), which has been meeting bi-weekly for over two years. He is very active in the community organizing NoSQL Summer, unconferences and code retreats.

  • Reza Rahman

    Reza Rahman is a Java EE/GlassFish evangelist. He is the author of the popular book EJB 3 in Action. Reza is a frequent speaker at Java User Groups and conferences worldwide including JavaOne. He is an avid contributor to industry journals like TheServerSide. Reza has been a member of the Java EE, EJB and JMS expert groups. He implemented the EJB container for the Resin open source Java EE application server.

    Reza has over a decade of experience with technology leadership, enterprise architecture, application development and consulting. He has been working with Java EE technology since its inception, developing on almost every major application platform ranging from Tomcat to JBoss, GlassFish, WebSphere and WebLogic. Reza has developed enterprise systems for well-known companies like eBay, Motorola, Comcast, Nokia, Prudential, Guardian Life, USAA, Independence Blue Cross and AAA using EJB 2, EJB 3, Spring and Seam.

  • Nilanjan Raychaudhuri

    Nilanjan is a consultant and trainer for Typesafe. He has more than 12 years of experience managing and developing software solutions in Java/JEE, Ruby, Groovy and also in Scala. He is zealous about programming in Scala ever since he got introduced to this beautiful language. He enjoys sharing his experience via talks in various conferences and he is also the author of the “Scala in Action” book.

  • Abdelmonaim Remani

    Abdel is a Software Architect at Just.Me, a stealth mode startup in the Mobile and Social space incubated by Google's Startup Labs. He is software developer and technology enthusiast at heart and by profession. Particularly interested in technology evangelism and enterprise software development and architecture. Experienced in Java Enterprise Applications and a wide range of related technologies. President and Founder of a number of organizations namely The NorCal Java User Group, The Silicon Valley Dart Meetup, and The Silicon Valley Spring User Group. Abdel is a frequent speaker at a number of developer conferences including JavaOne, JAX Conf, OsCon, OREDEV, and many user groups and community events.

  • Simon Ritter

    Simon Ritter is a Java Technology Evangelist at Oracle Corporation. Simon has been in the IT business since 1984 and holds a Bachelor of Science degree in Physics from Brunel University in the U.K.

    Originally working in the area of UNIX development for AT&T UNIX System Labs and then Novell, Simon moved to Sun in 1996. At this time he started working with Java technology and has spent time working both in Java technology development and consultancy. Having moved to Oracle as part of the Sun acquisition he now specialises in looking at emerging technologies including cloud computing, wireless sensor networks, and gestural interfaces.

  • Baruch Sadogursky

    Baruch Sadogursky, joined JFrog as the Developer Advocate following years of working alongside JFrog’s founding team.

    Prior to joining JFrog, Baruch was an innovations expert with BMC Software Incubator team after 6 years with AlphaCSP as a senior Java consultant, architect and training division manager.

    Baruch is hacking around Java technologies and Continuous-Integration tools since 2001, including module development for open source projects like Gradle & Spring. Baruch is also active in community development around Artifactory, participating in the development of it’s plugin ecosystem and enriching it’s functionality with open-source user plugins.

    As JFrog’s Developer Advocate, Baruch contributes to the strong collaboration with leading open-source projects such as SpringSource, Grails and Gradle by providing them with the Artifactory Cloud platform, and fuels the Continuous-Integration ecosystem with open-source plugins for leading tools such as Jenkins, TeamCity & Bamboo.

    Baruch blogs at http://blogs.jfrog.org & blog.sadogursky.com and tweets as @jbaruch.

  • Nikita Salnikov-Tarnovski

    Co-founder of Plumbr, the memory leak detection product, where he now contributes his full time as a core developer. Besides his daily technical tasks he is an active blogger and conference speaker (Devoxx, TopConf, JavaDay)

    Prior founding Plumbr, Nikita worked more than 10 years in Enterprise Java development for the largest custom software development company in the Baltics. He has worked with tens of different Java EE applications over the years. In the last years specialized in troubleshooting, performance memory optimizations.

  • Wolf Schlegel

    Wolf is a professionally qualified software engineer with over 18 years of international consulting experience. He has worked throughout the software lifecycle as a software engineer, software systems architect, team lead, business analyst and enterprise IT architect delivering major software systems. His primary professional interests are continuous delivery and devops, software architecture, software development methodologies and test automation. Wolf also has a strong interest in business processes and domain modelling with a special focus on the mobile telecommunication domain. Besides telecommunications, Wolf has worked across several industries, such as finance and insurance, the public sector and the steel industry.

  • Nathaniel Schutta

    Nathaniel T. Schutta is a senior software engineer focussed on making usable applications. A proponent of polyglot programming, Nate has written two books on Ajax and speaks regularly at various worldwide conferences, No Fluff Just Stuff symposia, universities, and Java user groups. In addition to his day job, Nate is an adjunct professor at the University of Minnesota where he teaches students to embrace dynamic languages.

  • Wojciech Seliga

    Wojciech Seliga is a seasoned software developer and entrepreneur. He started coding 30 years ago and since then has witnessed various waves, hypes and fashions in our industry. He has been responsible for fostering agile practices in the development and business alike, managing and staffing software projects and mentoring.

    Currently he runs a company he co-founded – Spartez - which partners with Atlassian on developing their core products. Besides leading efforts around Atlassian JIRA, Wojciech contributed to several open source projects and is an author of ScreenSnipe – a commercial cross-platform screenshotting tool sold globally.

    Wojciech was presenting at many international conferences including Devoxx, Agile, EclipseCon, Javarsovia/Confitura, 33rd Degree, Atlassian Summit, AtlasCamp, AgileByExample, GeeCon, InfoSHARE and smaller technical/business events in Poland and abroad.

  • Paweł Sidoryk

    Experienced software developer, system architect and technical leader in software development. Huge experience (14 years) in managing software development from the business to the implementation.

  • Mariusz Sieraczkiewicz

    Has been a software professional for more than 8 years. Passionate about learning from experience especially when dealing with real-life software projects. As a trainer and consultant works with top Polish teams on process agility, clean code, architecture and effective software practices. Co-conducts in-depth researches on critical success factors in software development. At top of that Mariusz has published dozens of articles in Software Developer Journal.

    His motto is “In most cases it’s all about people” what drives his focus towards communication and team members cooperation. Domain experience: Telco, Finances, Insurance, Manufacturing, E-commerce.

    His thoughts can be followed on twitter @ms_bnsit_pl or his blog http://msieraczkiewicz.blogspot.com .

  • Ken Sipe

    Ken has been a practitioner and instructor of RUP since the late 1990s, and an extreme programmer and coach since the middle 2000s. Ken has worked with Fortune 500 companies to small startups in the roles of developer, designer, application architect and enterprise architect. Ken's current focus is on enterprise system automation and continuous delivery systems.

    Ken is an international speaker on the subject of software engineering speaking at conferences such as JavaOne, JavaZone, Jax-India, and The Strange Loop. He is a regular speaker with NFJS where he is best known for his architecture and security hacking talks. In 2009, Ken was honored by being awarded the JavaOne Rockstar Award at JavaOne in SF, California and the JavaZone Rockstar Award at JavaZone in Oslo, Norway as the top ranked speaker.

  • Sławomir Sobótka

    Hands-on systems designer, head coach at Bottega IT Solutions specialized in Enterprise Java technologies and effective utilization of modern software engineering techniques. He is interested in wide spectrum of software engineering: web systems architectures, business modeling, patterns and agile methodics.

    As a hobby he is keen on psychology and cognitive science.

    In his spare time he participates in community as a president of Polish Software Engineering Professionals Association, lider of the Lublin Java User Group, publisher, speaker and blogger.

  • Amazon Web Services Solution Architect

  • Venkat Subramaniam

    Dr. Venkat Subramaniam, founder of Agile Developer, Inc., has trained and mentored thousands of software developers in the US, Canada, Europe, and Asia. Venkat helps his clients effectively apply and succeed with agile practices on their software projects, and speaks frequently at international conferences and user groups. He is author of ".NET Gotchas," coauthor of 2007 Jolt Productivity Award winning "Practices of an Agile Developer," author of "Programming Groovy: Dynamic Productivity for the Java Developer" and "Programming Scala: Tackle Multi-Core Complexity on the Java Virtual Machine" (Pragmatic Bookshelf).

  • David Vieira-Kurz

    David Vieira-Kurz has been working in the field of websecurity for more than 7 years now and he is specialised in finding security vulnerabilities in enterprise java environments and frameworks, bypassing web application firewalls and breaking filters of modern web-browsers. In the past he has published security advisories for more than 200 well known applications. Furthermore he has won some "webhacking challenges" and has been credited by major companies like Adobe,Apple,Ebay,Google,Microsoft,Nokia Siemens Networks, RedHat, PayPal and Twitter as part of their bug bounty and security acknowledgements programs. He holds a degree as Computer Specialists for Applications Development.

    He is currently working as Principal IT Security Consultant for german-based company MajorSecurity GmbH.

  • Geertjan Wielenga

    Geertjan Wielenga is a product manager in the NetBeans Team, where he has worked over the past 8 years, authoring books and speaking at international conferences such as JavaOne and Devoxx.

  • Piotr Wyczesany

    He wrote his first line of code in 1993. Since then, a lot has changed in the software development world, but great majority of us didn't notice that.

    He creates software professionally since 2006. During that time he was working in small companies, big corporations and he even launched a startup.

    For over a dozen of the last months he is proactively interested in complex domains modeling (Domain-Driven Design) and writes about it on his blog: http://www.eventuallyinconsistent.com.

    He is a member of SSEPP, and also an initiator and organizer of Cracow's #cqrsbeers meetings. He lives and works in Cracow.

  • Kai Wähner

    Kai Wähner works as Principal Consultant at Talend. His main area of expertise lies within the fields of Java EE, SOA, Cloud Computing, BPM, Big Data, and Enterprise Architecture Management. He is speaker at international IT conferences such as JavaOne, ApacheCon or OOP, writes articles for professional journals, and shares his experiences with new technologies on his blog (www.kai-waehner.de/blog). Contact: kontakt@kai-waehner.de or Twitter: @KaiWaehner. Find more details and references (presentations, articles, blog posts) on his website: www.kai-waehner.de

  • Tomasz de Jastrzebiec Wykowski

    Tomasz is an independent Agile trainer and coach at ProCognita. He has technical background with experience of working in software projects as developer, configuration manager, quality engineer and project manager. In his projects Tomasz has successfully implemented Agile and Lean culture, utilizing best practices of Scrum, Extreme Programming and Kanban. He's coordinated multinational, multicultural and distributed teams. Owned certificates of Project Management Professional (PMP) and Certified Scrum Professional (CSP) allow him to effectively combine traditional techniques with adaptive approach, and select processes and tools that best suits organizations’ needs. Tomasz studies human factor of software development, analyzing how people and their interactions impact the way we make products and how to employ this knowledge to deliver better solutions. He’s always eager to share his knowledge and learn something new by organizing and actively participating in international events and conferences.