Senior Software Engineer – Java (Contractor) - Contractor - Start Date: ASAP - Fully remote within Hungary As a Senior Software Engineer (Java) – Contractor at Beyond Sports, you’ll be focused on delivering robust, high-performance backend services and APIs that power digital experiences for millions of sports fans globally. This role is ideal for an experienced, hands-on engineer with strong Java and Spring expertise who thrives in a collaborative and fast-paced delivery environment. You’ll work closely with cross-functional teams to build, integrate, and optimize systems that handle real-time sports data, video, and live commentary. This position is project- and delivery-focused, with no line management or people-leadership responsibilities required. Key Responsibilities: - Design and develop scalable backend systems using Java and Spring Boot - Deliver well-structured, maintainable, and testable code aligned with project requirements - Build and maintain RESTful APIs to support web and mobile applications - Integrate with third-party data providers (e.g. sports data, video, commentary) - Use Git to manage code versioning and contribute to shared repositories - Manage deployments across multiple environments (Dev, Test, Staging, Prod) - Ensure systems are performant, secure, and resilient - Identify and manage project-level technical dependencies - Participate in sprint planning and delivery-focused meetings with the wider team - Write and maintain clear technical documentation - Contribute to code reviews and uphold development best practices Core Skills & Experience: Expert-level knowledge of: - Java 11+ - Spring Boot and Spring Framework (v5+) - JPA/Hibernate and ORM principles - Designing and building microservice architectures - Creating and consuming RESTful APIs - Git for version control and collaborative development - JSON and working with structured data - Unit testing with frameworks like JUnit - Task management tools like JIRA - Writing technical documentation for APIs and backend components Proficient with: - SQL (PostgreSQL, MySQL, or similar) - Kafka or other messaging/event-driven platforms - Docker containerization - Kubernetes for orchestration - AWS services (e.g., S3, Lambda, EC2, etc.) - Maven for build and dependency management - CI/CD pipelines and deployment automation Basic understanding of: - Python (scripts, tools, integrations) - Frontend technologies: HTML, CSS, JavaScript (for context when integrating with frontend)