Software Engineer SME

United States Digital Space LLC; Washington (District of Columbia); On-site; USD 140,000 - 210,000; Full time

Job summary

Leidos is seeking a Software Engineer SME to lead hands-on technical efforts on the Chinook Program for the IC. You will design, develop, integrate, test, deploy, and maintain mission-critical software and services, working with government stakeholders and contractor teams to deliver secure, scalable solutions.

Active Top Secret/SCI clearance with polygraph is required. Locations include Gaithersburg, MD; Alexandria, VA; Chantilly, VA; Englewood, CO; St.

Qualifications

• Hands-on software engineering leadership across the full SDLC.
• Experience delivering secure, scalable software in mission-critical environments.

Responsibilities

• Serve as senior technical SME within the development team to shape architecture and guidelines.
• Mentor engineers and collaborate with government stakeholders across lifecycle.

Job description

Are you a highly skilled Software Engineer ready to tackle complex technical challenges that directly support our nation’s intelligence mission? Leidos is seeking an accomplished Software Engineer Subject Matter Expert (SME) to join the Chinook Program supporting our Intelligence Community customer. This is an exciting opportunity to bring your software engineering expertise to a high-impact mission where innovation, technical excellence, and teamwork make a real difference. You will work alongside talented engineers, architects, mission experts, and government stakeholders to develop and deliver secure, scalable, and modern software capabilities that support critical national security objectives. As a Software Engineer SME, you won’t simply be writing code, you’ll help shape technical solutions, influence architecture, solve challenging engineering problems, and elevate the capabilities of the team around you. We are looking for a hands‑on technical leader who thrives in a collaborative environment and is excited about applying modern software engineering practices to meaningful mission challenges. In this role you will provide hands‑on technical leadership across the full software development lifecycle, designing, developing, integrating, testing, deploying, and maintaining mission‑critical applications and services. The SME will serve as a senior technical authority within the development team, helping establish sound engineering practices, resolve complex technical challenges, mentor other engineers, and collaborate closely with government and contractor stakeholders.

Position may be performed in the following locations below. Gaithersburg, MD Alexandria, VA Chantilly, VA Englewood, CO St. Louis, MO Tucson, AZ

Clearance Level Required: Active Top Secret/SCI with the ability to successfully pass a Polygraph examination. Primary Responsibilities: Serve as the senior technical SM