Valar Atomics

Senior Software Security Engineer

Valar Atomics · Torrance, California, United States

Posted 8 days ago

or apply directly on Valar Atomics's site. We never take the application ourselves.

Is this posting real?

This role has been open
8 days
Valar Atomics's roles stay open a median of 42 days
Reposted
No
Salary listed
No
0% of Valar Atomics's roles list one
Ghost-job risk at Valar Atomics
high
37 stale, 4 reposted of 84 open
Hiring momentum
105 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Valar Atomics's own greenhouse board since 2026-08-03. Full hiring picture for Valar Atomics.

About this role

As a Senior Software Security Engineer at Valar Atomics, you will embed security into the software development lifecycle, participating in design reviews and conducting post-development code reviews. You will work closely with engineering teams on a stack that includes C#, Python, and React, ensuring secure architectural decisions and identifying vulnerabilities in code before release. Your role will also involve maintaining secure coding guidelines and supporting compliance with cybersecurity standards.

Our read on this posting3.8out of 5
benefits
5/5
freshness
5/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Valar Atomics as an employer.

What you need

  • Professional experience in application security, software security engineering, or a related security-focused engineering role
  • Strong proficiency reading and reasoning about C# and Python code
  • Working knowledge of React and common front-end/web security issues
  • Experience reviewing Postgres (or other relational database) queries and schemas for security issues
  • Demonstrated experience doing security reviews at both the design/planning stage and the code-review stage
  • Familiarity with OWASP Top 10, secure design principles, and basic threat modeling

Nice to have

  • Experience at a large-scale technology company or within the defense industrial base
  • Familiarity with CMMC 2.0 requirements
  • Experience working under DFARS, NIST 800-171, or similar federal/defense compliance frameworks
  • Software/application security certifications: CSSLP, GWAPT, or GSSP
  • General security certifications: CISSP, OSCP, or Security+

What you get

  • Competitive base salary
  • Equity ownership in a rapidly growing advanced energy company
  • Comprehensive medical benefits
  • Unlimited PTO
  • Free daily lunch and dinner provided onsite
  • Generous PPE stipend

Worth weighing

  • No salary listed in the posting, but a range is provided
  • The role involves a dual-mode focus on both design and code review, which may require a broad skill set
  • Candidates from large-scale tech or defense sectors are preferred, indicating a competitive environment

Summarised from Valar Atomics's posting. Read the full original.

Listed by Valar Atomics on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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