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AI Summary
Design, build, and maintain Spring Boot microservices using Java 21 and 25 while managing the migration from on-prem infrastructure to AWS. Responsibilities include implementing CI/CD pipelines, ensuring service observability, and maintaining secure authentication and authorization.
Overview
- Tier One Technologies is seeking a Microservices Developer to support our US Government client.
- This will be a 100% remote contract-to-hire position.
- SELECTED CANDIDATES WITHOUT REQUIRED CLEARANCE WILL BE SUBJECT TO A FEDERAL GOVERNMENT BACKGROUND INVESTIGATION TO RECEIVE IT.
Responsibilities
- Design, build, and maintain Spring Boot microservices using Java 21 and Java 25.
- 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.
Qualifications
- A degree from an accredited College/University in the applicable field of services is required. If the individual's degree is not in the applicable field, then 4 additional years of related experience is required.
- 8+ years of experience in IT software development.
- Strong knowledge of Spring Boot microservices.
- Hands-on experience with Java 21 and Java 25.
- Excellent communication skills.
- Must be a US Citizen or have Permanent Residence status (Green Card).
- Must be able to obtain a Position of Public Trust Clearance.
- Must be able to pass a drug screening, criminal history, and credit checks.
- Must have lived in the United States for the past 5 years.
- Cannot have more than 6 months travel outside the United States within the last five years. Military Service excluded. (Exception does not include military family members.)
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