Flow Engineering
AI & Machine LearningDirect Ashby career site

Staff Software Engineer - Security

Location
San Francisco, CA · On-site
Job type
Full-time
Level
Lead / Staff
Experience
8+ years
Listed
30 days ago

Skills & highlights for this role

  • threat modeling
  • cloud security (AWS/GCP/Azure)
  • SOC 2
  • incident response
  • secure architecture

Also useful

  • ITAR
  • FedRAMP
  • prompt injection defense
  • TypeScript
  • Python

Stated benefits & perks

  • Health
  • Dental
  • Vision
  • Flexible time off

About the Role

Our customers in defense, aerospace and more trust us with sensitive systems requirements. That means security is a first-order part of the product, so we’re looking for a Staff Software Engineer to own it.

This is our first dedicated security hire, so you'll define the security architecture, harden the platform, and build out the compliance posture. Since LLMs and agentic workflows sit at the center of what we do, you'll also lead how we secure them.

What You'll Do

  • Own security architecture across the platform: threat modeling, secure design reviews, and the standards we build against.
  • Harden the full stack, from application security to cloud infrastructure (identity, network, secrets), tenant isolation, and data protection.
  • Drive SOC 2 and get us ready for the certifications defense and aerospace customers ask about, including export control and ITAR.
  • Secure our AI and agentic systems: prompt injection, data leaking through models, what actions agents are allowed to take, and guardrails.
  • Build the security tooling we need across detection, monitoring, vulnerability management, and CI/CD.
  • Stand up incident response and run it, from detection through postmortems.
  • Work with sales and product to get through security reviews and win customer confidence.

About You

  • 8+ years building production software, including running secure services at scale in the cloud.
  • Deep experience in application and cloud security (AWS, GCP, or Azure): identity and access, secrets, network security, data protection.
  • You've owned security in a regulated or high-trust environment and have implemented SOC 2 yourself. Export control, ITAR, or FedRAMP experience is a big plus.
  • Solid on threat modeling, secure architecture, and incident response.
  • You've secured AI or LLM systems.
  • You're comfortable being the security lead at a startup and setting the agenda yourself.

Our Stack (Ai-leaning)

  • TypeScript/Node.js and Python for AI and backend services.
  • Modern LLM APIs and orchestration libraries for building agentic workflows.
  • Postgres and other managed cloud services for data and state.

How We Work & Values

  • Speed over everything: prototype AI workflows quickly, then harden what works.
  • Own, downscope, ship, iterate: one clear owner per feature, from prototype to production.
  • Fundamentals done well: evaluation, observability, and safety are part of the first version, not an afterthought.
  • Competitive salary and meaningful equity.
  • Health, dental, and vision coverage.
  • Flexible time off and support for experimentation, learning, and staying current with the AI ecosystem.

About Flow

Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor.

Read the original posting

From Flow Engineering's careers page, first listed on Rolev.ai on October 10, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Staff Software Engineer - Security role at Flow Engineering, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Common questions

Where is the Staff Software Engineer - Security job at Flow Engineering located?

This Staff Software Engineer - Security position at Flow Engineering is located in San Francisco, CA (On-site). Always check Flow Engineering's application page for specific state eligibility or relocation policies.

What qualifications are required for Staff Software Engineer - Security at Flow Engineering?

For the Staff Software Engineer - Security role, Flow Engineering highlights 8+ years of relevant experience; experience with threat modeling, cloud security (AWS/GCP/Azure), SOC 2, incident response, secure architecture. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.

How do I apply for the Staff Software Engineer - Security position at Flow Engineering?

This listing links directly to Flow Engineering's Ashby application page. You can apply directly on Flow Engineering's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.