Security Software Engineer

Job Description

***This is NOT a remote position***

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Job Description

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We are seeking a Security Software Engineer to build and harden software systems supporting DoD programs operating under CMMC/NIST 800-171/FedRAMP compliance requirements. You will embed security across the SDLC—from design and code review through CI/CD and cloud deployment—working alongside engineering, DevSecOps, and IT teams in a regulated, cloud-native environment (AWS Commercial and GovCloud, Azure GCC High).

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Responsibilities

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Core Engineering & Secure Development

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• Design and develop secure software with a security-first mindset baked into every phase of the SDLC.
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• Apply secure coding standards, threat modeling, and vulnerability mitigation aligned to NIST 800-53 and CMMC Level 2/3 controls.
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• Conduct architecture reviews and code hardening to address OWASP Top 10 and DoD STIGs.
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• Automate security gates in CI/CD pipelines (SAST, DAST, dependency scanning, secrets detection).
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Security Architecture & Controls

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• Design secure system and API architectures for multi-tenant cloud environments, including GCC High and FedRAMP-authorized platforms.
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• Implement IAM controls, JIT provisioning, SSO/SAML/OIDC flows, and least-privilege authorization frameworks (e.g., Cognito, Azure AD).
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• Instrument applications with security logging and monitoring that satisfies audit and continuous monitoring requirements (AU/SI control families).
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Vulnerability Management & Response

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• Lead code reviews, SAST/DAST scans, and targeted penetration testing; document findings against control frameworks.
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• Triage and remediate vulnerabilities within POA&M timelines; maintain artifact evidence for compliance assessments.
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• Support incident response for application-layer events; contribute to after-action reports and corrective action plans.
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Cross-functional Collaboration

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• Serve as the embedded security champion for engineering squads, raising the security bar through mentorship and code review culture.
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• Develop and deliver security training and runbooks tailored to engineering and DevOps team members.
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• Collaborate with DevOps/SRE to enforce secure IaC, WAF rules, network controls, and runtime monitoring across AWS and Azure environments.
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Required Qualifications

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• Bachelor’s degree in Computer Science, Engineering, or related field—or equivalent experience.
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• 3+ years of software engineering experience with a strong focus on security.
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• Proficiency in one or more programming languages (e.g., JavaScript/TypeScript, Python, Go, C#).
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• Experience with secure coding practices and frameworks.
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• Strong understanding of application security principles, including:
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• OWASP Top 10
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• Secure API/REST design
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• Cryptography fundamentals
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• Authentication/authorization patterns
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• Experience with code scanning tools (SAST/DAST), threat modeling, and penetration testing.
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• Familiarity with NIST 800-171, CMMC, or FedRAMP security control requirements and evidence collection.
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• Hands-on experience with AWS and/or Azure security services (IAM, WAF, Security Hub, Defender, Sentinel); GCC High or GovCloud experience a plus.
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Preferred Qualifications

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• Experience with container security (Docker, ECS).
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• Working knowledge of Zero Trust Architecture principles.
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• Experience building DevSecOps pipelines in regulated environments; familiarity with tools like Prisma, Checkov, Snyk, or Aqua.
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• Relevant certifications (any of the following):
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• CISSP, CSSLP, or CASP+
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• OSCP
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• CEH
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• GIAC (GWAPT, GSEC, GWEB) or CCP/CCA (UK Cyber Essentials equivalent)
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• Experience securing microservices or event-driven architectures on ECS; background in federal or cleared environments preferred.
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