Member of Technical Staff - Product Engineer

Patronus AI
San Francisco
Workplace: OnsiteFull timeUSD 125,000 - 200,000 annuallyFunction: Communications, PR & CommunityExperience: 3+ yearsEducation: bachelorsSkills: ["Proactive mindset","Willingness to learn","Engineering judgment","Critical thinking","Relentless optimism"]

Build high-quality reinforcement learning environments used to train, evaluate, and improve AI agents. You’ll own complex agent environments end-to-end—frontend interfaces, backend services, APIs, data models, and workflows—while partnering with Applied Researchers, subject-matter experts, and QA specialists to ensure realism and catch subtle failure modes. Help maintain internal tooling and think critically about edge cases and adversarial agent behavior.

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FursaFursa
Patronus AI
Patronus AI
1 month ago

Member of Technical Staff - Product Engineer

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 16 hours agoStatus: Live

Job Summary

Build high-quality reinforcement learning environments used to train, evaluate, and improve AI agents. You’ll own complex agent environments end-to-end—frontend interfaces, backend services, APIs, data models, and workflows—while partnering with Applied Researchers, subject-matter experts, and QA specialists to ensure realism and catch subtle failure modes. Help maintain internal tooling and think critically about edge cases and adversarial agent behavior.
Location: San Francisco
Workplace: Onsite
Employment Type: Full time
Job Function: Communications, PR & Community
Seniority: Mid level

Key Responsibilities

  • •Build RL environments end-to-end, including frontend interfaces, backend services, APIs, data models, and workflows.
  • •Partner with Applied Researchers, subject-matter experts, and QA to ensure simulations are realistic and detect issues in simulation behavior and UI.
  • •Maintain internal tooling with a high bar for quality, identifying gaps and improving systems over time.
  • •Assess task coverage, environment correctness, edge cases, and adversarial agent behavior.
  • •Use AI coding tools like Claude Code and Codex and propose extensions and new tooling.

Pay and Benefits

Salary: USD 125,000 - 200,000 annually
Equity and Bonus:Equity
Perks:Paid LeaveHealth InsuranceDentalVision401kEquityMeal StipendWellness Stipend

Key Requirements

  • •3+ years of experience as a software engineer, full-stack engineer, product engineer, or similar role with a BS, MS, or PhD in Computer Science, Machine Learning, Statistics, Mathematics, or related field.
  • •Own complex products end-to-end from ambiguous requirements through production launch, ideally in a startup or small high-velocity team.
  • •Experience with real enterprise SaaS tools (e.g., CRMs, ticketing systems, billing platforms) and understanding how they behave over time with users, data, exceptions, and operational constraints.
  • •Strong engineering judgment around correctness, failure modes, edge cases, and adversarial behavior.
  • •Nice to have: experience with reinforcement learning, agent evaluation, verifiers, reward models, or ML infrastructure.
Experience:3+ yearsSaaSEnterprise softwareReinforcement learning
Education:Bachelor's in Computer Science, Machine Learning, Statistics, Mathematics, or related field
Skills:Proactive mindsetWillingness to learnEngineering judgmentCritical thinkingRelentless optimism
Languages:English
Tech Stack:ReactTypeScriptNext.jsPythonSQLiteClaude CodeCodexPlaywrightSelenium

Company Brief

Patronus AI
Develops AI-driven cybersecurity agents that automate threat detection, investigation, and response for security operations teams, using autonomous workflows and contextual analysis to reduce incident response time and operational burden.
Industry: Cybersecurity
Company Size: Small (11 to 50 employees)
Growth: Early Stage Startup
Funding: Seed
Headquarters: San Francisco, United States
Founded: 2022
WebsiteLinkedIn