Aleksander Radovan

HUJAK / BISS

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Aleksander Radovan (HUJAK & BISS) – graduated from the Faculty of Electrical Engineering and Computer Science and is currently finishing the PhD program. He is in the Java more than 14 years. He teaches at several universities in and around Zagreb courses related to programming in Java and information systems in general. He is also interested in areas such as artificial intelligence, genetic algorithms, robotics and teaching the younger generation programming.

• HUJAK community keynote

Ana Baotić

Asseco SEE, PM

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Ana is a software engineer with over 8 years experience in Android.
During college she focused on various e-learning projects and plagiarism detection. After getting her Masters degree in CS, she started developing for Android at an Zagreb-based agency, working on various projects in the telecommunication, medical and travel industry. After switching to mobile banking and security, in 2016 she took the role of Technical Manager of Mobile banking. She is currently working as a Project Manager at Asseco SEE. In addition to coding, she loves organising workshops and working directly with clients, helping to close the gap between the technical and practical in the mobile industry.
Apart from coding and public speaking, she enjoys spending time with her family and traveling.

• Building an effective team from zero
• Managing development or developing management - survival instructions

Anamarija Talijanac

IBM, Application Consultant and Software Engineer

Anamarija Talijanac is a consultant and application architect at IBM working on design, implementation, system integration and solution modelling of enterprise systems. For the passed 11 years she has been working on a series of projects in Government, Smart Card, Telecommunications and Banking industries. Anamarija is passionate about technology, learning new things and helping others. Programmer, mentor and speaker.

• Quarkus - Supersonic Subatomic Java (Tech Keynote)

Branko Mihaljević

HUJAK / RIT Croatia

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Branko Mihaljević is an educator, consultant, manager, and entrepreneur, dealing with Java since 1996 and with the Java EE (Jakarta EE) platform since 2000. After 12 years of teaching at UNIZG's FER, where he received dipl. ing. (MSc), DSM, mr. sc. and dr. sc. (Ph.D.) titles, and a few years teaching at Algebra and VERN', he is for the last 6 years working at RIT Croatia as Senior Lecturer & Research Assistant. He was also acting as a co-owner and CTO of a development company for 7 years, and he is currently leading his software consulting company. He gained experience as a consultant, software architect, project manager, development lead, and researcher on various projects in the financial, telecom, traffic, public health, satellite systems, and academic sectors. He is also the author of numerous scientific and professional papers, conference presentations, and popular Java-related articles. He worked on many research and professional projects, as well as delivered various university courses and professional workshops, and authored many educational materials. He is the president of the Croatian Java User Association (HUJAK).

• HUJAK community keynote
• On Java Performance - A Student's Perspective

Daniel Strmečki

Head of Platform Tehnology at ecx.io, an IBM company

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Daniel Strmečki is a Senior Java Developer and Head of Platform Technology Adobe at ecx.io an IBM company in Varaždin, Croatia. In early 2019, he earned a PhD degree in Information and Communication Sciences on University of Zagreb, Faculty of organization and informatics. Experienced in design and development of Java Web Business Applications and Content Management Systems with focus on modular and reusable services and components. Daniel likes sports, modern technologies, technical challenges, equal opportunity, motivated colleagues and well defined processes. One of his best qualities (confirmed by several managers) is constantly complaining and trying to improve ways of working. His open, ambitious, stubborn and perfectionist personality often annoys people, but eventually they learn to live with it. He is very focused on quality and passionate about topics like software craftsmanship, architecture, coaching, mentoring and knowledge management.

• Learning to Scale Yourself: The Journey from Coder to Leader

Dusko Vukmanovic

Oracle, Product Manager

Dusko Vukmanovic has a rich background in WebLogic and Java Cloud Service products and is working in the Functions area. He joined Oracle in 2005 as a Middleware Technology Specialist. He is a certified Oracle Enterprise Architect and holds a PhD. In a previous role as Product Manager in the JCS / JCS-SX team, he was actively involved in publishing WebLogic for OCI VM solutions and designing WebLogic for OCI OKE solutions.

• Serverless With Oracle Functions, Events and API Gateway

Frank Lyaruu

Frontline Architect

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Developer and architect with 20+ years in Java. Stream processing and reactive enthousiast.

• Too young to quit, too old to change: Saving your Legacy Applications using Change Data Capture

Goran Jelen

Infoart, Development Team Lead

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Experienced Software Engineer with a demonstrated history of working in the information technology and services industry and also with some experience and great interest in business management too. Skilled in Micro services, Mobile Applications (especially in Android), Data Science, Java (SA, EE), and Project management. Strong engineering professional with a PhD focused in Computer Science from Faculty of Electrical Engineering and Computing.

• Haj'mo razvijati mikroservise! A što sad?

Goran Kolevski

Engineering Information Systems

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Software Engineer with professional experience across various technologies and verticals, designing software architecture and developing large scale enterprise systems. Specializing and holding masters degree for search systems and machine learning.

• You Know, For Search: Deep Dive into ElasticSearch

Jamie Coleman

IBM

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Jamie is a software developer and Advocate for Open Liberty, MicroProfile and Kabanero based at IBM’s R&D Laboratory in Hursley, UK. He is a subject matter expert in containerised solutions and takes a keen interest in emerging technologies with experience in Maven, git, Jenkins and microservice architecture. He fell in love with Java at University and has gone on to talk at many conferences about using Java with microservices. He has worked on a wide variety of projects such as modernising CICS mainframe testing infrastructure, creating and automating the creation of Docker images for IBM’s products, contributing to a DevOps pipeline offering and creating web applications for events at the Lab. His recent passion is around raising awareness about energy consumption of technology and discovering ways to help reduce technologies carbon footprint.

• Hands-on cloud-native Java with MicroProfile, Kubernetes and Istio
• The Earths Coolest Data Centers

Jan Lahoda

A software developer with a passion for Java.

Jan has been improving Java language and its tooling for more than twenty years. Currently he is a member of OpenJDK team implementing new language features in Javac. His recent work - realization of JEP 325 - is about to bring switch expressions to the language we all love. Jan is passionate about Java and likes to talk about it at various conferences.

• The Future of Java is Today (Tech Keynote)

Josip Maslać

Aplos d.o.o. (Nabava.net) - CTO

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Josip is a quasi developer/devops/entrepreneur not being able to make his mind where to direct his focus. Interested in most things that have to do with building software. Mostly it's java web development, software design paradigms, team organization and management, docker, linux etc. Working at small development company whose main project is comparison shopping engine Nabava.net.

• Linux terminal for developers

Jozo Petrovic

Senior design and development specialist at A1 Hrvatska

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Software Developer with a proactive business mindset established during working in the telecommunications industry.
Skilled in Java, Spring Boot, Microservices, Databases, node.js, vue.js, css,...
Very ambitious and always ready for that extra mile.

• MojA1 transformation

Karlo Levak

Delivery Unit Manager

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Karlo has been working as an iOS developer for over 7 years and is passionate about mobile application development. He loves all fields of development but his primary focus are security aspects of iOS and mobile applications in general, passionately following mobile development in general to be up to date with new technologies and advancements.
During the last two years, his focus has been on team management and mentorship, along with architecture design, code reviews and development process optimisation. In 2019 he has taken the role of Delivery Unit Manager at Asseco SEE and is responsible for high level management and organisation for over 100 projects.
In his past time, he enjoys spending time with his family and friends, travelling and playing with his mini maltese Ares.

• Building an effective team from zero

Maciej Walkowiak

Independent Software Consultant

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Maciej is an independent software consultant with over 12 years of professional experience. His primary focus is designing and developing systems based on Spring stack and AWS. Open Source enthusiast, active Spring community member, contributor to several Spring projects. In meantime he runs a YouTube channel - Spring Academy - where he teaches Spring and shares news from Java & Spring ecosystem.
Since 2018 he helps refugees to get their foot into the German job market by teaching them Java at Redi School as a volunteer.

• Concise Spring Boot applications with Kotlin
• The State of Java Relational Persistence

Marko Talijanac

Software Engineer, CROZ

As young student Marko made an IDE controller for Dreamcast and customized a JVM. Then he was employed at CROZ. CROZ was never particularly interested at his controller. Instead Marko was promptly promoted to a lead of many projects. At all of those Marko compared some string values to other string values. He has seen all: empty strings, EBCIDIC strings, null terminated C strings embedded in larger UTF-8 strings (tough one that was), string parameters and templates, string formatters and types around strings, CLOBed strings and stacktraced strings.
Sometimes he wonders why he read Knuth at all. "Languages, algorithms those are all talk and no value. It's string comparison and transformation where the true money lies."
Marko likes Java and Python; "Solid string transformation tools", he often says. He is an expert at messaging "Rabbit, 0, IBM MQ - that's just networking - for strings."

• Low budget low latency transaction systems

Martin Grmek

Asseco SEE, Software Architect

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During college, Martin's main interests were security and root-kits. After getting his Masters degree in Computer science, he has accrued over 10 years in Java development, with greatest focus on mobile in the fintech sector.
Software architect on key ASSECO SEE products used by over million end users in the region. Currently leading team on the newest cutting-edge solutions for fast growing financial business.
In his free time, he enjoys traveling and spending time with wife and two sons.

• Managing development or developing management - survival instructions

Matej Vidaković

Android developer at Microblink

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Android developer and Kotlin fan, currently working at Microblink.

• Developing better SDKs with Kotlin
• Design for developers

Roko Roic

CCO

Speaker, Writer, Manager, Software engineer

• Scalable IOT architecture for Positioning

Saša Ivičević

Serengeti d.o.o., Senior developer

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Sasa is a Software Engineer who has been working at Serengeti for the past two years. Currently, his main focus, apart from developing backend systems for clients, is to introduce agile principles and manage a team of developers in an agile way. With over a decade in IT, Sasa has worked on solutions for biggest European names in Automotive, Airline, and Retail industries.

• Working in distributed agile teams

Vid Romac

CROZ, software developer, filozof?

Software developer s 5 godina iskustva u integracijama i dizajnu procesa i sustava.

• Tell me, what's a server that ain't integrated? - JBoss EAP integracije i XA konfiguracija

Yasmin Aumeeruddy

IBM

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A software developer advocate for Open Liberty with experience in Docker, Kubernetes, Maven and cloud-native applications. Enthusiastic about the development of Microservices and open source projects.

• Hands-on cloud-native Java with MicroProfile, Kubernetes and Istio

Zeljko Zorko

Serengeti d.o.o., Senior developer

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Zeljko is a Software Engineer at Serengeti, an international software development nearshoring and consulting company. With more than 6+ years of experience working for the biggest names in Automotive, Tourism and Banking industries, Zeljko has experienced work in different types of agile teams. Now he uses his experiences to introduce agile principles and to help clients to build effective and productive teams.

• Working in distributed agile teams

Željko Trogrlić

Software Architect

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Software architect with 20+ years of experience in the Java ecosystem and international projects in distributed teams. Main business domains: telecommunications and transport.
Focused on software production improvements: as a member of the Agile Board in Fortune Global 500 company division, participated in the definition and implementation of the agile process.
In spare time, give and organize talks as a part of Osijek Software City Code Camp initiative.
Currently working as freelance consultant.

• Četiri stupa Kubernetes aplikacije