> Markdown version of [/jobs/ext/3835384-software-engineer](https://www.wearedevelopers.com/jobs/ext/3835384-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** Eliassen Group - **Location:** St. Louis, MO, United States - **Experience:** Expert - **Salary:** $176,800.0 - $197,600.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Automation of Tests, Code Review, Continuous Integration, Scrum Methodology, Cloud Services, Microsoft Copilot, Software Engineering, TypeScript, Enterprise Software Applications, Grafana, Spring-boot, Technical Debt, Cloudformation, AngularJS, Gitlab-ci, Infrastructure Automation Frameworks, Front End Software Development, Cloudwatch, Restful APIs, OpenSearch, Vulnerability Analysis, Microservices - **Published:** October 19, 2026 - **Apply:** https://www.juju.com/job/16_63a335242 ## About the Role Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance., * 5+ years of hands-on software engineering experience. * Advanced proficiency with Java and the Spring Boot ecosystem. * Experience with AWS Cloud services such as ECS or EKS, Lambda, and RDS or Aurora, and IaC tools like CDK or CloudFormation. * Experience with Angular. Familiarity with micro-frontend architecture using module federation is a plus. * Background in microservices architecture and modernization patterns such as the strangler pattern. * Strong technical writing and communication skills. * Collaborative approach and effective problem solving in cross-functional teams. * Comfort with AI-enabled tools and willingness to learn and apply emerging technologies. Experience with GitLab CI/CD and Copilot is beneficial. * Preferred experience with FedRAMP High, FISMA, or similar compliance environments. * Track record in reducing technical debt through refactoring and automation. * Familiarity with CI/CD, artifact management, and security scanning. * Familiarity with observability tools such as CloudWatch, Grafana, and OpenSearch. ## Description Our client seeks a hands-on Senior Software Engineer to modernize and maintain a mission-critical enterprise application in AWS GovCloud. The role focuses on practical engineering, reliability, and collaboration with architects and scrum teams to deliver scalable microservices and micro-frontend solutions., * Design and implement microservices using Java, Spring Boot, and TypeScript supporting event-driven and RESTful patterns. * Build solutions on AWS GovCloud services including ECS or EKS, Lambda, EventBridge, and RDS within microservices and micro-frontend architectures. * Reduce technical debt through dependency and framework upgrades with strong test automation. * Implement UI test automation and BDD practices to ensure quality. * Collaborate with enterprise architects and scrum teams to translate architecture into scalable solutions. * Apply reusable patterns and best practices for architectural consistency. * Participate in architecture and code reviews and technical discussions aligned with enterprise standards. * Document designs and decisions with clear technical writing. * Troubleshoot production issues, optimize performance, and deliver robust features. * Contribute to both new feature development and ongoing production support in Agile sprints.