Senior Java Backend Developer

Key Accountabilities

Architect Enterprise-Grade Java Services: Build and optimize scalable, high-availability Spring Boot microservices powering commerce APIs and OLTP applications.

Scale Transaction-Heavy Systems: Design for concurrency, consistency, and resiliency in high-throughput, large-data environments.

Lead Microservices Design: Guide architectural evolution leveraging Kafka, Kubernetes, and S3-compatible storage.

Operate Across Multi-Cloud Environments: Deploy workloads across AWS, GCP, and RunPod using Dockerized and CI/CD-enabled workflows.

Contribute to Agile Execution: Participate in Jira-based sprint planning, review PRs, and maintain comprehensive technical documentation.

Scope of Work

Own backend microservices powering real-time retail systems.

Enable the platform to process 120,000+ transactions per hour.

Guide database modeling across MongoDB, MariaDB, PostgreSQL, and MySQL.

Set standards for performance, observability, and error handling across backend teams.

Outcomes & Success Metrics

Maintain 99.99999% uptime across backend systems.

Ensure 500 response b tency for transaction critical endpoints.

Achieve zero P1 issues under normal load.

Maintain complete and up to date API and service documentation.

Increase reusability and interoperability across backend services.

Required Experience

7 to 12 years in backend development using Java (Spring Boot) & JavaScript.

Proven track record in high-volume OLTP system design.

Expertise with MongoDB, MariaDB, MySQL, PostgreSQL.

Strong experience in Kafka, Kubernetes, Docker, and S3 storage.

Familiarity with Agile tools like Jira and Confluence.

Strong system design and distributed architecture skills.

Preferred / Additional Experience

Experience in retail tech, fintech, or supply chain systems.

Familiarity with observability stacks (Grafana, ELK, Prometheus).

Experience with zero-downtime deployments and multi-region scaling.