Lead Software Developer (SME)

We are seeking a cleared Software Developer SME to provide expert-level software development, architecture, modernization, and technical leadership for complex mission applications supporting classified and sensitive law enforcement, national security, and criminal justice programs within the National Security Business Unit. The Software Developer SME will serve as a senior technical authority responsible for application architecture, secure development, complex integrations, DevSecOps maturity, code quality, production issue resolution, team mentorship, technical roadmap development, and modernization strategy. The Software Developer SME will provide expert-level software development, architecture, modernization, and technical leadership for complex mission applications supporting law enforcement, national security, and criminal justice programs. This role will guide secure software delivery across the full lifecycle, from requirements analysis and solution design through development, testing, deployment, sustainment, and modernization.

The Software Developer SME will also contribute to National Security Business Unit growth by shaping application modernization roadmaps, advising on emerging mission needs, supporting proposal and capture solutioning, identifying new technical service areas, and helping position the account for expanded software engineering and mission application support. Responsibilities

• Lead complex application architecture, development, integration, modernization, and sustainment efforts.
• Develop complex features, integrations, APIs, data services, and mission application capabilities.
• Advise on secure coding, design patterns, DevSecOps, CI/CD, testing, documentation, and release practices.
• Resolve high-priority production issues and guide technical troubleshooting.
• Improve code quality, test automation, delivery velocity, and application maintainability.
• Lead design reviews, code reviews, estimation sessions, release planning, and technical decision-making.
• Mentor software developers, technical leads, testers, and application support personnel.
• Support proposal solutioning, capture activities, technical strategy, staffing recommendations, and account-growth initiatives.

Salary Range: $175,000-$185,000

• Active Top Secret clearance with SCI eligibility; TS/SCI preferred.
• 10+ years of software development, software engineering, or application architecture experience.
• Expert knowledge of full-stack development, databases, APIs, integration, secure coding, Agile/DevSecOps, and production support.
• Experience leading technical teams, major development initiatives, or modernization efforts.
• Ability to translate mission requirements into secure, scalable, maintainable technical solutions.
• Strong communication skills with technical teams, business stakeholders, security staff, and leadership.

Desired Skills

• Agile/Scrum, SAFe, DevSecOps, cloud, secure coding, database, software architecture, or related certification.
• Experience with case management systems, workflow platforms, SharePoint, enterprise content management, litigation support tools, data analytics, or reporting platforms.
• Experience supporting classified, law enforcement, national security, criminal justice, defense, or intelligence environments.
• Experience supporting capture, proposal development, account growth, and technical roadmap planning.

Everforth ECS is seeking a Lead Software Developer (Top Secret Cleared) to work in our Washington, DC office. Please Note: This position is contingent upon contract award., ECS Federal LLC is an equal opportunity employer and does not discriminate or allow discrimination on the basis any characteristic protected by law. All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, or local jurisdiction law.

is the federal segment of , a $4B global organization with over 10,000 employees. Our nearly 3,500 professionals deliver advanced technology solutions in data and AI, cybersecurity, and enterprise transformation, serving defense, intelligence, and federal civilian agencies.

Our work powers mission-critical outcomes, strengthens technology partnerships, and creates meaningful opportunities for our people. We are defined by a commitment to excellence in delivery, a culture of innovation, and an environment where talent can thrive and grow.

We value:

• Attracting and developing top talent and high-performing teams
• Fostering a culture that is engaging, accountable, and mission-driven

Meet the challenge. Make a difference with Everforth ECS!