Microservices Developer

GDIT is seeking a highly skilled Software Engineer/Microservices to support software development for our USPS customers. The Microservices Developer will be responsible for designing, building, and maintaining scalable backend services that power the platform’s RESTful APIs., * Ability to create and evolve RESTful APIs with clear contracts, versioning, and backward compatibility.

• Implement input validation, error handling, idempotency, and standardized response models.

• Integrate services with on-prem and AWS-hosted databases during migration phases.

• Plan and execute data-access changes to support hybrid connectivity (on-prem to AWS) safely.

• Optimize database interactions, including query tuning, connection pooling, and transaction boundaries.

• Containerize services and maintain production-ready Docker images.

• Deploy and operate services on Kubernetes with health probes, resource limits, and autoscaling.

• Build and maintain CI/CD pipelines for build, test, security scan, and deployment automation.

• Implement secure service-to-service and client authentication/authorization.

• Manage secrets and configuration using AWS-native and Kubernetes-native approaches.

• Add observability: structured logging, metrics, distributed tracing, dashboards, and alerting.

• Troubleshoot incidents across application, container, cluster, network, and database layers.

• Improve resiliency with retries, timeouts, circuit breakers, and graceful degradation patterns.

• Participate in migration planning from on-prem infrastructure and data stores to AWS.

• Support release validation in staging and production, including rollback readiness.

• Write and maintain unit, integration, contract, and performance tests.

• Address vulnerabilities by upgrading dependencies and remediating CVEs in application libraries.

• Collaborate with QA, platform, security, and architecture teams on standards and best practices.

• Document APIs, operational runbooks, and service ownership responsibilities.

• Experience with Agile development environments with tools like VersionOne (or similar platform)

• A minimum of 8 years of experience in Java development, with at least 2 years of microservices development experience.

• Ability to design, build, and maintain Spring Boot microservices using Java 21 and Java 25., Education: * Bachelor’s degree in a relevant field from an accredited College/University is preferred.

• Alternative Path: If the candidate does not possess a relevant four-year degree, an additional four years of relevant work experience will be required.

Required Technical Skills and Expertise:

• Developing production-grade microservices using Java 21 and Java 25

• Implementing clean and consistent API contracts, and ensuring secure, reliable integration with internal and external systems.
• Collaborate closely with product, architecture, and QA teams to deliver high-quality releases, support deployment and validation in staging and production, and troubleshoot issues across distributed environments.
• Over time, the developer will drive improvements in service performance, resiliency, and observability while contributing to shared engineering standards, reusable components, and automation across the microservices ecosystem.
• Strong problem-solving skills, clear communication, and a commitment to continuous improvement are essential for success in this role.