Open-Source Software Security SME

ECS Tech Inc • Arlington, VA

19h • $185,000 - $235,000 • Hybrid

About The Position

Everforth ECS is seeking an Open-Source Software Security Subject Matter Expert to support the Cybersecurity and Infrastructure Security Agency (CISA). The role strengthens open-source software security through vulnerability analysis, hands-on software development, and collaboration with technical teams and the open-source community. This is a hybrid position in Arlington, Virginia.

Requirements

• U.S. citizenship and ability to obtain and maintain DHS Suitability (EOD).
• Bachelor’s degree in computer science, cybersecurity, software engineering, or a related technical field.
• At least 8 years of professional experience in software development, cybersecurity, or related technical roles.
• At least 8 years of hands-on experience in open-source software security, application security, or vulnerability research.
• Experience in open-source software security, vulnerability analysis, and software development.
• Demonstrated experience developing, testing, and contributing code to production software systems and open-source projects.
• Knowledge of secure development practices, dependency management, SBOMs, and software supply chain security.
• Experience using AI-assisted development or security tools and validating their results.
• Strong communication skills and ability to work across technical teams.

Responsibilities

• Support CISA’s Secure by Design initiatives and engagement with open-source organizations, maintainers, and vendors.
• Use AI-assisted tools to identify and analyze open-source software vulnerabilities, validate findings, and recommend remediation.
• Assess existing vulnerabilities and identify opportunities for software hardening and modernization.
• Provide technical guidance on dependency management, Software Bills of Materials (SBOMs), and software supply chain risks.
• Translate CISA guidance into working tools and software contributions suitable for acceptance into active open-source projects.
• Contribute code, testing, and documentation to an open-source coding agent used as a reference implementation.
• Collaborate with vulnerability management, threat hunting, AI, product, and platform engineering teams.
• Participate in technical pilots and open-source community engagements.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior