Senior Java Web Developer at Accenture Ltd

Main maintenance and development of a ticket vending machine configuration software. Customization of parameters and development of UI components. Implementation of complex filtering logic between configuration parameters. Development of bulk parameter updates and new features for importing machine configurations profiles. Knowledge of containerized deployments and Kubernetes-based environments. Built Dockerized applications and participated in GitLab CI/CD pipelines deploying services to Kubernetes clusters; including understanding pod structures, config management and container orchestration concepts. Exposure to Azure DevOps pipelines and authentication workflows. Configured OAuth and SAML2 (Keycloak with Azure AD) integrations and migrated legacy authentication to Spring Security.

Freelance Full-Stack Web Developer at Self-employed / Freelancer

Maintenance and modernization of web shops. Database migration and query optimization. Architecture modernization: version upgrades, containerization, and transition from static to single-page web apps. Technical consulting for startup projects. Optimization of functions, algorithms, and complex database queries.

Senior Full-Stack Java Internet Banking Developer at Misys/IND/Finastra Ltd

Develop web banking solutions for clients including Banca di Budapesti (Romania), National Bank of Abu Dhabi (UAE), Yoma Bank (Myanmar/Burma), Awas International Bank (Ethiopia) from Budapest HQ. Customization of boxed / OEM financial applications for clients. Development of Java 6-compatible backend with Spring Framework. SOA integration and testing with internal and external (e.g., GIRO Bank) systems. Database management for Oracle and DB2, including stored procedure development. Knowledge of Enterprise Integration Patterns; Spring Integration; messaging-based workflows; EIP concepts. Worked with Spring Integration and messaging-based workflows; Apache Camel integration model and pattern-oriented integration approach. Spring MVC Framework, Maven, Eclipse, SVN, MyBatis/iBatis, AspectJ, Liquibase, JMS, ActiveMQ, ExtJS, Sass, LESS, HTML5, CSS, Spring Integration (Enterprise Integration Patterns).

Junior Architect / Senior Java EE Backend Developer at Prototype (startup-like company)

Prototype design; feasibility studies and effort estimations. Hands-on experience with ElasticSearch indexing and full-text search integration.