Concept Solutions, LLC (CS) is seeking a
Software Engineer - Go (Golang) to support a mission-critical application modernization program for a Department of War (DoW) customer.
This program focuses on simplifying access across a portfolio of production applications by creating a unified platform with single sign-on, a shared user interface, and a standardized approach to application integration.
The Software Engineer will play an important role in maintaining and enhancing existing applications while supporting the transition to a more integrated platform. This position is ideal for a backend engineer who enjoys solving complex problems, working with established codebases, and ensuring production systems remain reliable and secure.
- Application Sustainment & Engineering
- Troubleshoot and resolve software defects in production applications built with Go (Golang), React/TypeScript, and PostgreSQL.
- Develop, test, and implement software patches and enhancements in accordance with the customer's release schedule.
- Maintain and improve automated tests to protect existing application functionality.
- Analyze unfamiliar codebases and implement changes safely without disrupting production operations.
- Maintain technical documentation, operational procedures, and system runbooks.
- Participate in an on-call support rotation following onboarding.
Requirements
- 3+ years of backend software engineering experience, including production development using Go (Golang) and SQL.
- Demonstrated ability to troubleshoot, maintain, and enhance existing production applications.
- Experience working with unfamiliar or complex codebases and implementing changes safely.
Preferred Qualifications
Experience with Amazon ECS or Kubernetes.Familiarity with AWS GovCloud environments.Active Secret security clearance.Eligibility for a Tier 5 background investigation.Work Location and Schedule
Location: Hybrid. Reston, VA headquarters and approved remote locations within the United States, with on-site work at Government facilities in Northern Virginia and Maryland as required.
Schedule: Full-time, 40 hours per week, Monday through Friday, with core hours of 9:00 a.m.-3:00 p.m. Eastern.
Development Schedule: Two-week sprints with a customer demonstration each sprint.
Travel: 0-10%, within the Washington, DC metropolitan area.
Security Requirement: U.S. citizenship required. Must be eligible to obtain and maintain a security clearance. An active Secret clearance or higher is strongly preferred and may allow an earlier start.
Compensation: $130,000-$150,000 base salary, depending on experience.
This position is contingent upon contract award, with an anticipated start in October 2026.
Benefits: Concept Solutions offers a competitive benefits and salary package you would receive from a large company. We offer health, dental, vision and life insurance, as well as a comprehensive 401(k) plan with matching and immediate vesting.
