Java Developer

Experienced Java Developer based in Prague with expertise in a wide range of tools and technologies. Proven track record of optimizing performance, implementing new algorithms, and managing key systems. Skilled in CI/CD, testing frameworks, microservices, and frontend technologies. Strong communication and collaboration skills with a focus on project success. Currently pursuing a BS in Computer Science with a high GPA.

06.2022 – till now Java Developer. • Improved cache invalidation system with a new algorithm and optimized load balancer logic. • Managed Keycloak for IAM, including user authentication, authorization, and SSO implementation. • Reduced application load time by 20% by optimizing code on Adobe Experience Manager. • Utilized Jenkins for deploying code to multiple environments for QA testing. • Developed unit and component tests using the Spock testing framework.

03.2022 – 05.2022 Java Developer. • Set up and maintained XML schemas and WSDL documents for smooth system communication. • Designed Mock services to replicate external system behaviors for development and testing. • Contributed to a project establishing REST endpoints with third-party request logic. • Identified and resolved Spring4Shell vulnerability for multiple microservices.

07.2020 – 02.2022 Java Developer. • Developed multi-module systems using Spring and Spring Boot. • Migrated modules from Java 8 to Java 11 for improved performance and security. • Improved REST API by implementing Swagger and OpenAPI 3.0. • Initiated splitting monolithic structure into microservices for scalability.

07.2019 – 07.2020 FullStack Developer. • Developed Java and Spring solutions to meet client requirements. • Enhanced web application functionality with J2EE servlets. • Improved admin panel interfaces in ReactJS. • Conducted weekly code reviews and unit-testing to ensure high-quality code.