Senior Backend Engineer - Java

As a Senior Java Backend Engineer, you will primarily design and build backend services while possessing the adaptability to support frontend development when necessary. You will evolve the core API layer and downstream services, delivering secure, performant REST APIs. You will lead technical design reviews, improve service reliability, and collaborate across the stack to ship features end-to-end. While your focus is on the backend, you may step into frontend codebases (Angular/React) to unblock delivery and ensure a cohesive user experience.

Responsibilities:

• Own and evolve platform APIs and services, ensuring low-latency, resilient endpoints for client applications.
• Design and implement Spring Boot microservices using modern patterns (contract-first APIs, layered architecture, DTO mappers, caching).
• Improve reliability and performance with caching (e. g., Redis, etc. ), connection management, and efficient data access.
• Contribute to frontend development using React and TypeScript, building modern, maintainable user interfaces and collaborating across the stack to support feature delivery and integration.

Requirements:

• 5+ years of software development experience building Java services in production.
• Expertise with Spring Boot and REST API design; comfortable with contract-first development and layered service architectures.
• Experience building and consuming service/domain contracts and integrating external/partner APIs.
• Proficient with data modeling and access patterns; capable of optimizing queries, caching, and serialization for high-performance applications.
• Proficient in automated testing: unit, integration, component, contract, and performance testing.
• Strong focus on observability, performance profiling, and resilience (timeouts, retries, circuit breakers, idempotency).
• Strong verbal and written communication skills; able to explain design trade-offs to technical and non-technical partners.
• Familiarity with AI-assisted development tools (e. g., Codex CLI) to improve engineering productivity and code quality.

Skills

API, Java, REST, Spring Boot