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Backend Engineer – Java
Proximity Works. Design and build scalable backend services using Java and Spring Boot.
Tech Stack
Tools & technologiesAWSCloudDistributed SystemsDockerJavaKafkaKubernetesMicroservicesMySQLNoSQLPostgresRedisSpringSpring BootSpringBootSQL
About the role
Key responsibilities & impact- Design and build scalable backend services using Java and Spring Boot.
- Develop high-performance REST APIs and microservices.
- Build backend capabilities for subscriptions, payments and user entitlements.
- Implement Fire TV IAP purchase and subscription workflows.
- Integrate with app stores, payment providers and external platform APIs.
- Build workflows covering purchases, renewals, cancellations, refunds and subscription-state changes.
- Design reliable, idempotent transaction-processing systems.
- Handle retries, failures, reconciliation and eventual consistency across distributed services.
- Build event-driven and asynchronous workflows using messaging systems.
- Design systems that can handle high throughput and sudden traffic spikes.
- Optimize service latency, throughput, scalability and infrastructure utilization.
- Improve observability through logging, metrics, tracing and alerting.
- Troubleshoot complex production issues across distributed services.
- Participate in architecture reviews, code reviews and technical-design discussions.
Requirements
What you’ll need- Strong programming experience with Java.
- Strong experience with Spring Boot / Spring ecosystem.
- Strong experience designing RESTful APIs and microservices.
- Solid understanding of distributed systems, concurrency and asynchronous processing.
- Experience with SQL databases such as PostgreSQL/MySQL.
- Experience with NoSQL databases is desirable.
- Experience with caching technologies such as Redis.
- Experience with Kafka or similar event-streaming/messaging platforms.
- Understanding of transaction management, idempotency and data consistency.
- Experience with AWS or similar cloud platforms.
- Familiarity with Docker, Kubernetes and CI/CD pipelines.
- Strong production-debugging and performance-optimization skills.
- 4-7 years of backend engineering experience.
- Strong hands-on Java and microservices development.
- Ability to independently design and deliver backend services.
- Experience working on scalable and distributed production systems.
- 6-month contractual role.
Benefits
Comp & perks- Best-in-class salary: We hire strong talent and compensate accordingly.
- Proximity Talks: Meet and learn from designers, engineers, product leaders, and AI practitioners.
- Continuous learning: Work with a world-class team and stay close to the latest in AI, engineering, and product development.
- High-impact work: Build AI-first systems and products used at scale by global clients.