Brainco
Platform Security [US]
San Francisco Bay Area · Senior
Sponsorship not specifiedDetected 31 days ago
TypeScriptPythonGoAWSGCPAzureMachine LearningComputer VisionLLMsAgentic AILangGraphAI OrchestrationCybersecurity
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odds of building a lasting career here
37Risky
Cap-exempt (no lottery)0
Sponsors this role80
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70
Thin sponsorship signal and lottery-bound. A low-probability bet with your clock running. Prioritize cap-exempt roles and proven entry-level sponsors first.
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Files H-1B transfers
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About the role
- This isn't a policy or compliance role-it's a builder role.
- You'll work as a software engineer embedded with our product and agent-platform teams-writing production code, not just policy-to make the secure path the only path an agent can take.
- Write production code for data access controls that keep customer PII and sensitive records inside approved boundaries, even when an agent is orchestrating the request
Responsibilities
- Brain Co. builds AI-native operating systems for large, regulated institutions.
- Every project here ships to production and is expected to create measurable customer value and impact.
- What You'll Build & Ship
- Design and build the guardrail services that mediate actions an AI agent takes, scoped permissions, tool-call validation, and hard limits on what an agent can read, write, or send
Requirements
- Experience with or strong working knowledge of how AI agents operate in production, tool use, function calling, orchestration frameworks (LangChain, LangGraph, or similar)
Nice to have
- Familiarity with policy-as-code, secrets management, or software supply-chain security tooling
- Prior startup experience
- comfort with ambiguity and working autonomously
- Your code will ship into production and directly shape how safely our agents operate on customer data as the platform grows.
- To apply, send your CV and a brief note on a guardrail, safety control, or piece of security tooling you've built to [hiring contact].
Benefits
- Background in regulated industries (healthcare, government, financial services) handling sensitive customer data
- Help define and measure guardrail effectiveness, coverage across security workflows, false positive/negative rates, mean time to detect and contain
Company info
- Rebuild how the world works, to make institutions work better for the people they serve.
- ABOUT BRAIN CO.
- Each system is built for a specific industry, powered by agents that push real workflows forward.
- Underneath it all is Atlas, our proprietary platform that keeps customers in control, secure by design, and never locked into one model.
- Brain Co. is entering its next phase of production deployments on a national scale with an elite team built from Palantir, Google, Meta, and Nvidia, and a growing footprint across government, insurance, health, and financial services.
- Joining now means shaping both the company and a new category of applied AI.
- You'll work alongside exceptional peers on some of the hardest problems in applied AI.
- It's the kind of work you'll still be proud of in ten years from now.
- We're looking for a Platform Security Engineer to build the guardrails that keep our AI agents safe to run on real customer data.
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This listing is sourced directly from Brainco's careers page and normalized into a canonical job model.