08/07/2025 updated
100 % available
Senior Java Developer with 20 years experience in Software Development and Integration Solutions
Bratislava, Slovakia
Worldwide
Master's degree in Information systems (Ing.)Java (Programming Language)Application Programming Interfaces (APIs)Asset ManagementBankingBanking SoftwareComputer SecurityDatabasesContinuous IntegrationRelational DatabasesDevOpsJava Platform Enterprise Edition (J2EE)Financial SystemsFinancial SoftwareGovernanceHibernate
Java Development
Extensive expertise in Java backend development with Spring Boot, Hibernate, and microservices architecture. Proficient in Java EE, JPA, and various Java frameworks for enterprise applications.
API Management & Integration
Specialized knowledge in designing and implementing API management solutions using Axway API Gateway, REST APIs, and SOAP services. Experience with integration patterns and enterprise service bus implementations.
Banking & Financial Software
Deep domain knowledge in banking software development, including wealth management systems, open banking solutions (PSD2), and secure financial applications with advanced security measures.
Database Technologies
Advanced knowledge of relational databases including Oracle, PostgreSQL, and Microsoft SQL Server. Experience with database migrations and optimization.
Security Implementation
Implementation of advanced security measures including OAuth 2.0, JWT, SAML, and WS-* family protocols. Experience with API security concepts and IT security governance.
CI/CD & DevOps
Experience with continuous integration and deployment using Git, Jenkins, Maven, and Docker/OpenShift. Implementation of automated deployment pipelines.
Microservices Architecture
Design and implementation of microservices-based applications using Docker, Kafka, and Elastic. Experience with Node.js/TypeScript for backend development.
Extensive expertise in Java backend development with Spring Boot, Hibernate, and microservices architecture. Proficient in Java EE, JPA, and various Java frameworks for enterprise applications.
API Management & Integration
Specialized knowledge in designing and implementing API management solutions using Axway API Gateway, REST APIs, and SOAP services. Experience with integration patterns and enterprise service bus implementations.
Banking & Financial Software
Deep domain knowledge in banking software development, including wealth management systems, open banking solutions (PSD2), and secure financial applications with advanced security measures.
Database Technologies
Advanced knowledge of relational databases including Oracle, PostgreSQL, and Microsoft SQL Server. Experience with database migrations and optimization.
Security Implementation
Implementation of advanced security measures including OAuth 2.0, JWT, SAML, and WS-* family protocols. Experience with API security concepts and IT security governance.
CI/CD & DevOps
Experience with continuous integration and deployment using Git, Jenkins, Maven, and Docker/OpenShift. Implementation of automated deployment pipelines.
Microservices Architecture
Design and implementation of microservices-based applications using Docker, Kafka, and Elastic. Experience with Node.js/TypeScript for backend development.
Experience
Professional experience10+ years
Freelancer since2017
Languages
GermanFluentEnglishFluentSlovakNative speakerCzechFluent
Project history
Time for rest, reflection, and preparation for new professional challenges
Development of Austrian Covid-19 Green Pass (e-Health) and Access Management solutions. Backend development using microservices architecture with OpenShift, Spring Boot and Keycloak. Participation in system design and continuous deployment processes.
Development of Wealth and Asset Management software for private banking. Full stack development with Oracle DB, Java EE and Vaadin framework. Participation in software architecture and technological innovations.