Sr. Software Developer

We are seeking a Senior Software Developer for a 12+ month contract position based in St. Louis, Missouri. This is a hands-on role supporting the modernization and maintenance of a mission-critical enterprise application in AWS GovCloud (FedRAMP High). You will work in a fast-paced environment focused on innovation and reliability, collaborating with enterprise architects and scrum teams to translate architectural vision into practical, scalable solutions.

Responsibilities

• Design and implement microservices using Java/Spring Boot and TypeScript, supporting event-driven and RESTful integration patterns.
• Build solutions leveraging AWS GovCloud services, including ECS/EKS, Lambda, EventBridge, and RDS, within microservices and micro-frontend architecture.
• Address technical debt by upgrading outdated dependencies and frameworks.
• Ensure comprehensive test automation using UI testing and behavior-driven development (BDD) approaches.
• Work closely with enterprise architects and scrum teams to translate architectural vision into practical, scalable solutions.
• Apply reusable patterns and best practices to ensure architectural consistency across teams.
• Participate in architecture reviews, code reviews, and technical discussions aligned with enterprise standards.
• Document designs, articulate complex ideas, and share knowledge effectively through strong technical writing and communication.
• Tackle challenging engineering problems with creative and pragmatic solutions.
• Troubleshoot issues, optimize performance, and deliver robust features that meet production stability requirements.

Qualifications

• Required

• 5+ years of software engineering experience with a strong focus on hands-on development.

• Advanced proficiency in Java and Spring Boot ecosystem.

• Experience with AWS Cloud, including ECS/EKS, Lambda, RDS/Aurora, and infrastructure-as-code tools such as CDK or CloudFormation.

• Experience with Angular.

• Demonstrated background in microservices architecture, including modernization of legacy applications using patterns like the strangler pattern.

• Strong technical writing and communication skills, with the ability to document designs and articulate complex ideas clearly.

• Excellent problem-solving skills and collaborative approach to working with cross-functional teams.

• Demonstrated comfort with AI-enabled tools, coupled with a willingness to learn and apply emerging technologies to improve productivity and business outcomes.

• Preferred

• Familiarity with micro-frontend architecture (module federation).

• Experience working in FedRAMP High, FISMA, or similar compliance environments.

• Track record of reducing technical debt through dependency upgrades, refactoring, and test automation.

• Expertise in CI/CD pipelines (e.g., GitLab CI/CD), artifact management, and security scanning.

• Familiarity with observability tools such as CloudWatch, Grafana, and OpenSearch.