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Toptal: Senior Java Developer — Microservices & Spring | Remote
Headquarters: Remote
URL: https://www.toptal.com/
About the Role
We're looking for a Senior Java Developer to design, build, and maintain scalable backend systems using Java, Spring, and a microservices architecture. This is a hands-on engineering role: you'll own services end to end, from data modeling through deployment, while collaborating closely with cross-functional teams to deliver production-ready solutions. If you're comfortable owning backend architecture decisions and writing clean, maintainable code at scale, this is built for that.
What You'll Do
- Design, develop, and maintain backend services and APIs using Java and the Spring ecosystem (Spring Boot, Spring Cloud, Spring Data).
- Build and evolve microservices architecture, including service decomposition, inter-service communication, and API design.
- Design and optimize relational database schemas and queries using SQL.
- Implement RESTful APIs and support integration with third-party systems and internal services.
- Write clean, testable, production-quality code, including unit and integration tests.
- Troubleshoot and resolve performance, scalability, and reliability issues across distributed services.
- Participate in code reviews, architecture discussions, and technical planning.
- Support CI/CD pipelines and deployment processes for microservices.
- Collaborate with cross-functional teams (frontend, QA, product) to deliver features end to end.
- Contribute to technical documentation and best practices for the engineering team.
What You Bring
- Strong hands-on experience with Java in a production backend environment.
- Solid experience with the Spring framework (Spring Boot, Spring MVC, Spring Data, Spring Cloud).
- Proven experience designing and building microservices architectures.
- Strong SQL skills, including schema design, query optimization, and relational data modeling.
- Experience with RESTful API design and development.
- Understanding of distributed systems concepts (service communication, fault tolerance, scalability).
- Experience with version control (Git) and CI/CD workflows.
- Strong problem-solving skills and ability to work independently on complex technical challenges.
- Solid communication skills for collaborating with cross-functional and distributed teams.
Nice to Have
- Experience with containerization and orchestration (Docker, Kubernetes).
- Experience with message queues or event-driven architecture (Kafka, RabbitMQ).
- Familiarity with cloud platforms (AWS, Azure, or GCP).
- Experience with NoSQL databases alongside SQL.
- Familiarity with monitoring and observability tools (Prometheus, Grafana, ELK stack).
Why This Role
- Real architectural ownership: Shape microservices design decisions, not just implement tickets.
- Modern stack: Work with current Java, Spring, and microservices best practices.
- Cross-functional collaboration: Work closely with product, QA, and frontend teams on end-to-end delivery.
- Flexibility: Remote-friendly engagement structure.
How to Apply
Ready to bring your Java and microservices expertise to a production-grade system? Apply through Toptal here: https://www.toptal.com/talent/apply