10/06/2025 updated
OW
100 % available
Java Software Developer with 5+ years experience in Fintech and Aviation
Varna, Bulgaria
Worldwide
Master's degree in Computer Software EngineeringAbout me
I am a skilled Java developer with over seven years of experience in designing, developing and maintaining high-performance applications. I thrive on turning complex challenges into elegant solutions.
HTMLJava (Programming Language)JavaScriptAviationArchitectureCascading Style Sheets (CSS)Software QualityCommunications ProtocolsDatabasesContinuous IntegrationData ManagementDevOpsElectronicsJava Platform Enterprise Edition (J2EE)Groovy
Java Development
Extensive experience with Java 8, 11, 17, Java EE, and Groovy. Proficient in Spring framework and Spring Boot for building robust applications.
Database Management
Knowledge of multiple database technologies including Hibernate, JPA, MySQL, Oracle, and MongoDB for efficient data management and storage solutions.
Software Architecture
Experience with both monolithic and microservices architectures, implementing various communication protocols including TCP/IP, HTTP(S), REST, SOAP, and JSP.
Testing and Quality Assurance
Familiarity with testing frameworks such as JUnit, Selenium, Selenide, and Cucumber for ensuring software quality and reliability.
DevOps Tools
Proficiency in containerization and CI/CD tools including Docker, Kubernetes, Jenkins, Git, GitLab, and Mercurial for streamlined development workflows.
Frontend Technologies
Knowledge of HTML, CSS, and JavaScript for creating user interfaces and web applications.
Domain Expertise
Specialized knowledge in Fintech, Aviation, Networking, Data management, and Electronics sectors.
Extensive experience with Java 8, 11, 17, Java EE, and Groovy. Proficient in Spring framework and Spring Boot for building robust applications.
Database Management
Knowledge of multiple database technologies including Hibernate, JPA, MySQL, Oracle, and MongoDB for efficient data management and storage solutions.
Software Architecture
Experience with both monolithic and microservices architectures, implementing various communication protocols including TCP/IP, HTTP(S), REST, SOAP, and JSP.
Testing and Quality Assurance
Familiarity with testing frameworks such as JUnit, Selenium, Selenide, and Cucumber for ensuring software quality and reliability.
DevOps Tools
Proficiency in containerization and CI/CD tools including Docker, Kubernetes, Jenkins, Git, GitLab, and Mercurial for streamlined development workflows.
Frontend Technologies
Knowledge of HTML, CSS, and JavaScript for creating user interfaces and web applications.
Domain Expertise
Specialized knowledge in Fintech, Aviation, Networking, Data management, and Electronics sectors.
Experience
Professional experience5 - 10 years
Freelancer since2025
Languages
GermanBasic knowledgeEnglishFluentRussianNative speakerUkrainianNative speaker
Project history
Migration of legacy projects to a new platform, design and development of new features for business needs, maintenance and customer support, cooperation with client's development teams.
Implementing business requirements while avoiding potential bottlenecks, finding and fixing memory leaks and bugs, updating and refactoring codebase.
Developing and implementing a versioning control system, identifying and resolving integration conflicts, test coverage of new functions and maintenance.