04/21/2026 updated
100 % available
Senior Backend Engineer
Budapest XI. Ker., Hungary
Worldwide
Computer Science BScAbout me
Senior backend engineer with 6+ years building scalable Java/Spring Boot systems in enterprise environments. I design and own backend services end-to-end, including the cloud infrastructure they run on: Kubernetes, Terraform, Azure, CI/CD.
Java (Programming Language)PostgreSQLApache MavenMySQLScrum MethodologySQL DatabasesSpring BootBackendGitMicroservices
Java/Spring Boot Development
Enterprise-level backend development with Java and Spring Boot frameworks for scalable systems
Cloud Infrastructure & DevOps
Cloud-native systems design and implementation using Kubernetes, Azure, Terraform, and CI/CD pipelines
API Design & Microservices Architecture
REST API development and microservices architecture for distributed systems
Database Management
Oracle, MySQL, PostgreSQL, Redis, Flyway, and JPA/Hibernate for data persistence
Frontend Technologies
TypeScript, Angular, ReduxJS, HTML, CSS for cross-platform development
Development Tools
Maven, JUnit, Docker, Helm, NodeJS for development workflow
Project Management Tools
JIRA, Confluence, Azure DevOps, GIT, Gerrit for collaboration and version control
Automation & Testing
Bash scripting and automation tooling for 5G testing infrastructure
Enterprise-level backend development with Java and Spring Boot frameworks for scalable systems
Cloud Infrastructure & DevOps
Cloud-native systems design and implementation using Kubernetes, Azure, Terraform, and CI/CD pipelines
API Design & Microservices Architecture
REST API development and microservices architecture for distributed systems
Database Management
Oracle, MySQL, PostgreSQL, Redis, Flyway, and JPA/Hibernate for data persistence
Frontend Technologies
TypeScript, Angular, ReduxJS, HTML, CSS for cross-platform development
Development Tools
Maven, JUnit, Docker, Helm, NodeJS for development workflow
Project Management Tools
JIRA, Confluence, Azure DevOps, GIT, Gerrit for collaboration and version control
Automation & Testing
Bash scripting and automation tooling for 5G testing infrastructure
Experience
Professional experience5 - 10 years
Freelancer since2026
Languages
EnglishFluentHungarianNative speaker
Project history
Freelance backend engineering and architecture for European clients. Java/Spring Boot, cloud-native systems on Kubernetes/Azure, API design and platform engineering. Available for project-based or embedded contractor engagements.
Backend developer on DAP, an official Hungarian government application. Designed and coded 20+ REST API endpoints in Java/Spring Boot with Oracle, Hibernate/JPA, and Flyway. Assumed full backend responsibility.
Built cross-platform mobile and web features with TypeScript, Angular, NodeJS, and Azure. Managed infrastructure with Terraform. Grew into a senior role, driving technical decisions in planning and architecture.