Teodor is a Java Development Leader in Kaufland Service IT Hub. Even though he was recently promoted to the role Teo has previous experience in working in the Telecom industry as a Team Leader with a proven track record of leading people to success. He is also extremely oriented to teaching others as he was responsible for training people in the Software University.

Since he joined the IT Hub in 2017, he was part of the founding of two strategical projects K-Standards and Bau-Standards which are now successfully in production. He also took a huge role in the creation and development of the Internship Program of the company which he practically built from scratch. In his TL role he takes leadership of the Java Team and the Internship Program. He also utilizes his strong business partnership skills to ensure the smooth collaboration between the company international teams in all projects.

Ioannis has more than 15 years experience as Java developer 7 of which are as full time OpenSource developer.
He is a member of the Apache Software Foundation, with contribution to numerous projects as a committer and PMC member.
He is currently working as a Principal Software Engineer at Red Hat as part of Red Hat Spring team, where he spends most of his time implementing tools and frameworks related to Kubernetes, Openshift and Spring Boot.

Tom Mueller is a Staff Engineer 2 at VMware specializing in the development and cloud deployment of the Workspace ONE Access product which provides federated user authentication and control of application access for the Workspace ONE suite. Tom’s experience with Java dates back almost to when it was called Oak and included early applet development and later server development with portlets (JSR-168), the Java EE reference implementation (Glassfish), and various identity-related technologies. His current role involves full stack development of both cloud-hosted and on-premises software solutions.

Josef is a Security Engineer at Hazelcast. He is a passionate Java developer, open-source contributor and decent runner. He spent 10+ years by focusing on different aspects of application security. He takes care of security at Hazelcast, before that he was a security freak at JBoss. Josef maintains several open-source projects – for instance the jd-cmd (command line wrapper for Java Decompiler), JSignPdf (digital signatures for PDFs), totp-me (TOTP authenticator for Java ME enabled devices).

My name is Tushka and I am a Java Technical lead at Scalefocus. I work mainly in Java based projects. I have strong technical background mostly as a Java backend developer.

I am passionate about new technologies and mentoring. I am also interested in topics for self-improvement and coaching.

I love traveling abroad, meeting new people and learning about other cultures. 

Georgi is a full-stack developer with more than 5 years experience with Java programming and related technologies. He has worked across various fields such as banking, fintech, logistics and telecoms. Georgi enjoys developing both front-end and back-end applications, however his favourite language remains Java for its flexibility and huge potential. In his free time, he enjoys sports, movies and spending time with his friends and family.

Georgios is a Senior Software Engineer working for Red Hat. He works on Java frameworks and their synergies with cloud native systems but also has a taste for DevOps and Data Engineering.

Vladimir is a technical product manager with an engineering background (Master’s degree in Computer science) and deep expertise in stream processing and real-time data pipelines. Ten years of building internal software platforms and development infrastructure have made him passionate about new technologies and finding ways to simplify data processing. Therefore Vladimir joined Hazelcast in 2016 and he is a product guy behind Hazelcast Jet streaming engine. He authored the Understanding Stream Processing DZone Refcard. Vladimir is also a lecturer with the Czechitas Foundation, whose mission is to inspire women and girls to explore the world of information technology.

Christian is creating the environment to develop, innovate and truly collaborate at Zühlke Engineering in Munich. He comes from a software development and architecture background. Currently, he does a lot of interesting things: team leadership – being responsible for the team in Munich and building up our team in Sofia. Christian is constantly thinking how to improve the way his teams work together. He is also consulting clients on how to get going with innovation, and how to adopt agility and technology on the way.

Technical Lead and Solution Architect with experience building direct-to-client and back-office financial services platforms covering the full stack.
Excited to demonstrate how good architecture, collaboration and process can enable incremental and reliable delivery on transformative business goals and realise the disruptive opportunities of technology.
An advocate for message driven and microservice architectures to enable low risk, responsive change.

Senior software engineer at VMware with over ten years of experience, yes, I know, that is not so much and passion for travel. If you want to know more about my professional life, feel free to stalk me on LinkedIn but if you want to see my passion in action my travel blog.

As a Solution Architect at Tide, Tom spends most of his time designing different components of the core product of the fintech challenger.
Apart from that he reads, experiments, teaches and spreads the word for other exciting technologies such as Flutter, Kotlin, Go, Firebase and Google Cloud Platform.
Outside the office, he prays for deep snow, a waxed snowboard and a working lift.

Ioannis Kolaxis is a Software Architect at Atos Greece, developing innovative software products for Unified Communication and Collaboration (UCC). He likes sharing his knowledge & experience with the developer community, speaking at conferences like Oracle Code One 2019 (San Francisco, USA) & local meetups, such as the Java Hellenic User Group (Athens, Greece) & Thessaloniki Java Meetup (Thessaloniki, Greece). He frequently writes articles on LinkedIn and Developer Zone, focusing on Software Engineering topics, like Java and Software Quality. He is certified as a European Professional Engineer (EUR ING), and a Professional Scrum Master (PSM I). In 2017, he was awarded by Atos with the title of “Senior Digital Expert”, as a recognition of his technical expertise and professional accomplishments.

Graduate of Warsaw University of Technology. Has almost 7 years of experience in software engineering. Open source contributor, author of articles and speaker.

Miro is a Co-founder and VP Engineering at DNAstack, where he builds a leading genomics cloud platform. He is a Java enthusiast with expertise in distributed systems and middleware, passionate about genetics and making meaningful software. Miro is the creator of the largest search and discovery engine of human genetic data, and the author of a book on parallelization of genomic queries. In his spare time, he blogs and contributes to several open-source projects.

Thodoris works as a Scrum Master for ABN Amro bank and contributes to the prosperity of the (software) community in several ways. He is the Founder & Leader of Utrecht Java User Group, which counts more than 2000 members and has hosted exceptional speakers (where among others, James Gosling and Uncle Bob). Besides, he serves the Expert Group of JSR-385 and helps new communities to make their first steps. Previously: 5 years of Software Engineering, 2 years as a Technical Author, Open-source contributor. His views are expressed via his Twitter handle @thodorisbais

Denis Tsyplakov is a professional software developer and architect, who started coding in the late eighties as a hobby. By mid-nineties, the demand for software engineers drove him to turn his hobby into profession. Although Denis is a master of a variety of programming languages, his favorite one is Java because of its power, flexibility and elegance. Since 2006, Denis has been working at DataArt as a senior solution architect. He designs complex systems, improves application architecture, and focuses on performance, scale, extensibility, and total cost of ownership. And he does mentoring of other junior architects too. Denis spends his free time with the family, his lovely wife and two daughters; he enjoys hiking and sci-fi books.

Zdravko is a confident, responsible and proactive software engineer with 5+ years of experience in various challenging software projects. I possess excellent communicational, organizational and analytical skills. I have significant knowledge in front-­end development with CSS and JavaScript as well as in back-­end development with Java technologies. I am a great team player and a valuable part of any development team.

Rumen is a skilled Java developer with more than 10 years of experience. He’s been developing on Spring, JavaEE, Angular and many more technologies. Currently he is facing the challenge of leading a team that creates the backend of an application that will be used across all Kaufland stores.

Stanimir is a JavaEE developer with plenty of experience in creating web applications. He has joined IT Hub Kaufland in 2017. Currently he is building a complex backend architecture in an international project. In his free time he is doing marathons.

Ivan is a Java developer with experience in different industries like health care, banking, FinTech. Currently working at Kaufland Service IT Hub. Passionate about new and innovative technologies. Always keen to learn and help.

Georgi is a skilled Java developer with a lot of experience in the area of web technologies. He is ацтижелъ developing in Spring Boot and also mentoring the trainees in the company. Georgi is working in IT Hub Kaufland since 2017. Besides work he shares a big passion for mountains.

Włodek Krakowski is a team leader and independent technical trainer. Also a developer if the time allows. His main interest is taking care of delivering valued software from different perspectives. These are how people take care of quality of code, how people work together towards providing business value, how people help to grow each other and how people are managed. Currently he works as IT Team Leader in Kraków, Poland and delivers technical / refactoring trainings at www.refactoring.pl.

Marcin Moskala is an experienced Android developer, teacher, and an official Jetbrains’ Kotlin training partner. He is the founder of Kt. Academy, author of the book “Android Development with Kotlin”, and an active programming community member. He is also the main author on the biggest medium publication about Kotlin and a speaker invited to many programming conferences.

Tihomir has more than 10 years of experience developing web applications, the last 6 of them working on user interfaces for VMware’s vSphere suite. He is currently a part of the team that is transforming the extensibility model of the suite and the way third party plugins are loaded, authenticated and isolated.