A Java Back-end Developer focuses on building robust, secure, and highly-available server-side systems and APIs that power products, working closely with front-end engineers and architects to ensure performance benchmarks are consistently met.
What We Expect From You:
- Design and implement microservices and distributed systems using Java and the Spring ecosystem, following established architectural patterns.
- Develop secure, high-performance RESTful APIs that are consumed reliably by both web and mobile client applications.
- Model, optimise, and manage relational and NoSQL databases to support scalable, data-intensive workloads.
- Implement authentication and authorisation mechanisms using OAuth2, JWT, and Spring Security best practices.
- Identify and resolve performance bottlenecks through profiling, load testing, and targeted refactoring of critical code paths.
- Integrate third-party services, payment gateways, and external APIs in a maintainable and testable way.
- Write comprehensive unit and integration tests to maintain high coverage and prevent regressions across services.
Requirements
- 3+ years of professional Java back-end development with deep knowledge of the JVM and core Java libraries.
- Strong hands-on experience with Spring Boot, Spring Cloud, and ORM frameworks such as Hibernate or JPA.
- Solid understanding of microservices architecture, including service discovery, load balancing, and inter-service communication.
- Experience with relational databases (PostgreSQL, MySQL) and caching solutions like Redis.
- Practical knowledge of message brokers such as Kafka or RabbitMQ for building event-driven services.
- Comfortable with Docker, Kubernetes, and setting up or maintaining CI/CD pipelines in cloud environments.
- Proficiency in English.
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