Dušan Jícha - Software Developer & Architect

About Me

I am a Software Developer and Architect with 15+ years of experience in designing and implementing enterprise-level applications. My expertise lies in Java/JVM technologies, microservices architecture, and cloud-native solutions. I specialize in building high-performance, scalable systems that solve complex business problems while maintaining code quality and best practices.

Throughout my career at AIS Servis, SIKO KOUPELNY & KUCHYNĚ, and as a freelance developer, I have successfully led development teams and critical projects, demonstrating strong technical leadership and problem-solving abilities. I'm passionate about continuous learning and knowledge sharing, regularly mentoring junior developers and contributing to the technical growth of my teams.

Technical Skills

Java Ecosystem

Expert in Java development with 10+ years of experience. Proficient in Spring Boot, Spring Cloud, Hibernate, and Java EE. Strong knowledge of JVM internals and performance optimization.

Databases & Integration

Experienced with Oracle, PostgreSQL, MSSql. Skilled in database design, optimization, and performance tuning. Proficient in integration technologies including Kafka, RabbitMQ, and RESTful APIs.

DevOps & Cloud

Expertise in containerization with Docker and orchestration with Kubernetes. Proficient in CI/CD pipelines using Jenkins, GitLab CI.

Professional Experience

Team Leader

June 2021 - Present

AIS Servis, s.r.o. - Leading a development team in Brno. Skills include property and liability insurance, team leadership, Java, Enterprise JavaBeans (EJB), Git, Atlassian JIRA, Informix, and fleet management.

Freelance Web and Software Developer

May 2015 - Present

Independent Software Professional - Providing development services using Java, SQL, Oracle PL/SQL, C#, and React Native.

Senior Software Developer - Analyst

May 2020 - May 2021

AIS Servis, s.r.o. - Working as a senior developer and analyst in Brno.

Lead Software Developer

April 2018 - April 2020

SIKO KOUPELNY & KUCHYNĚ - Lead programmer in web development at Siko. Worked with SAP Commerce (Hybris) B2C, B2B, customization, and integrations. Served as technology supervisor and DevOps.

Senior Software Developer

April 2019 - December 2019

Hexio.io - Worked on Hexio IoT Platform (API/Services integration) part-time.

Services/API Integration Developer

January 2018 - March 2019

Technologické centrum Písek s.r.o. - Focused on services and API integration in IoT project and Multimedia portal based on EntermediaDB

Programmer/Analyst

June 2010 - April 2015

Intelis, s.r.o. - Participated in network inventory management system (Telefónica O2) using Oracle 9i, 10g, 11g, Oracle Forms 9i, Java (Swing, Apache Wicket, Guava, Spring, Hibernate ORM, Reflection API). Worked on Incity project, server-side tools for data transformation, REST client, web portal (JSON RESTful API, Spring, org.codehaus.jackson, MongoDB). Migrated SAS (Systém analýzy sítě) VBA report system from MS Office 1997 to versions 2010, 2013, 2016.