Valar Atomics
Senior Security Software Engineer
$175K–$200K
Torrance, California, United States · Senior · Full-time · Posted Sep 8, 2026
- Experience
- Professional experience required; no number of years stated.
- Visa sponsorship
- Applicants must be legally authorized to work in the United States as a U.S. citizen or lawful permanent resident (green card holder).
About the job
Embeds security in software design and development by reviewing architecture and code, identifying vulnerabilities, and guiding remediation across Valar Atomics’ application stack.
What you'll do
- Conduct design reviews and lightweight threat modeling; recommend secure architectures and requirements.
- Review C#, Python, React, and Postgres code and schemas for security vulnerabilities, and provide actionable remediation guidance.
- Support CMMC 2.0 alignment and maintain secure coding guidance, using review trends to inform developer training.
What they ask for
- Professional experience in application security, software security engineering, or a related security-focused engineering role.
- Strong proficiency reading and reasoning about C# and Python; working knowledge of React security issues.
- Experience reviewing Postgres or other relational database queries and schemas for security issues.
- Experience conducting both design/planning security reviews and code reviews; familiarity with OWASP Top 10, secure design, and basic threat modeling.
Nice to have
- Experience in a large-scale technology company or defense industrial base; familiarity with CMMC 2.0 or DFARS, NIST 800-171, or similar frameworks.
- Experience with SAST/DAST, CI/CD security checks, SBOM or software supply-chain security, or cloud environments.
Pay
$175,000 — $200,000 USD (base salary)
Tools
C#, Python, React, Postgres, C#/.NET, OWASP Top 10, STRIDE, AWS/Azure
Model-written summary · the original posting is authoritative