Principal Software Engineering Lead - Enterprise Application Modernization

Concept Solutions, LLC (CS) is seeking an experienced Principal Software Engineering Lead to provide technical leadership, establish engineering standards, and drive software quality across enterprise application modernization initiatives supporting the Department of War (DoW).

In this role, you will guide engineering practices across both sustainment and platform development teams, mentor squad leads, and ensure consistency in software design, development, testing, and release processes. You will play a critical role in aligning technical approaches, resolving cross-team engineering challenges, and maintaining the quality of application integrations with modernized platforms.

This is an opportunity for a seasoned engineering leader who thrives in complex enterprise environments and enjoys building high-performing teams while maintaining strong technical standards.

Engineering Standards & Quality

• Own and establish engineering standards across sustainment and platform development tracks, including coding standards, code reviews, branching and release practices, test coverage expectations, and the definition of done.
• Ensure consistent adoption of engineering best practices across development squads.
• Maintain accountability for the quality of application-side changes connecting sustained applications to the modernized platform.

Technical Leadership & Collaboration

• Mentor and provide technical guidance to engineering squad leads.
• Facilitate cross-track design reviews to promote architectural consistency and technical alignment.
• Resolve technical disputes between sustainment and platform squads, balancing engineering quality, delivery requirements, and program objectives.
• Foster collaboration and knowledge sharing across engineering teams.

• 12+ years of professional software engineering experience.
• 5+ years of experience leading multiple engineering squads delivering enterprise web applications to government customers.
• Demonstrated ability to establish and maintain engineering standards across multiple development teams.
• Experience providing technical mentorship, facilitating design reviews, and resolving complex engineering challenges.

Preferred Qualifications

• Experience working with Go (Golang), Java, and React codebases.
• Familiarity with GitLab and contract testing practices.
• Active Secret security clearance or higher.

Schedule: Full-time, 40 hours per week, Monday through Friday, with core hours of 9:00 a.m. - 3:00 p.m. Eastern

Security Requirement: U.S. citizenship required. Must be eligible to obtain and maintain a DoW security clearance. An active Secret clearance or higher is strongly preferred and may allow an earlier start.

Compensation: $250,000 - $250,000 annual 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.

Founded in 1999 and headquartered in Reston, Virginia, Concept Solutions, LLC (CS) is a leading small business in technology, engineering, and management consulting. We are the innovative and agile force behind strategic solutions that enhance organizational efficiency and safeguard our nation across Aerospace, Defense, and National Security sectors.

For over 25 years, CS has been a trusted partner for the Federal Aviation Administration (FAA), Department of Homeland Security (DHS), Department of Justice (DOJ), Department of Defense (DoD) and other federal agencies delivering vital IT, security, and project management services.

Our commitment to excellence is reflected in our adherence to CMMI-DEV ML3, ISO 9001:2015, ISO/IEC 20000-1:2018, and ISO/IEC 27001-1:2013 standards. CS boasts company highlights that include:

• Over two decades of experience across over $300 million in contract awards supporting critical FAA programs
• Multiple contract vehicles providing opportunities across FAA, DoD, NOAA, and other Federal agencies
• Innovation Council - CS maintains an active Internal Research and Development (IR&D) program that is geared towards identifying emerging technologies and pursuing technological innovations

At CS, we know our success stems from our talented team. That’s why we prioritize the wellbeing and growth of our employees, fostering a positive culture centered on innovation, engagement, and career development.