Middle+/Senior Java Backend Developer
Neo GroupLatvia12 days ago
Full-timeEngineering
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As part of our continued growth, Neo Group is recruiting on behalf of one of our local partners, leveraging our network of 1,400 talented professionals across 10+ countries. Together, we are committed to delivering innovative, data-driven solutions that empower our clients and foster professional growth within a dynamic and collaborative workplace.
- Develop and maintain the backend of a high-load application
- Design and implement APIs, integrate with external and internal services
- Work with databases, write efficient SQL queries and migrations
- Optimize performance and scalability of solutions
- Test, debug, and support the code
- Collaborate with frontend developers, DevOps engineers, and other teams
- 5+ years of commercial experience in Java development
- Excellent understanding of web application fundamentals using Apache Tomcat
- Strong understanding of multithreading and concurrency in Java (ExecutorService, CompletableFuture, virtual threads, synchronization, thread safety)
- Strong knowledge of Spring/Spring Boot, including Spring MVC, Spring Security, Spring Data
- Experience building RESTful APIs
- Hands-on experience with Kafka in production/high-load environments
- Experience working with relational (PostgreSQL, MySQL) and non-relational databases (MongoDB, Redis)
- Proficient in Git and experience in team-based development
- Understanding of microservices architecture
- Solid skills in writing unit and integration tests using JUnit, Mockito, TestContainers, WireMock or similar tools; commitment to well-tested and reliable code
- Experience with RabbitMQ
- Experience with GraphQL API
- Experience with Reactive programming
- Experience with Spring WebFlux + Netty
- Experience with containerization and orchestration (Docker, Kubernetes)
- Knowledge of secure coding practices (OWASP Top 10 and others)
- Ability to clearly articulate technical solutions and justify choices
- Strong teamwork and communication skills
- Proactive, self-driven, and responsible for results
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