Init Intelligence — Senior/Staff Founding Full-Stack Engineer, Agent Systems

• →Build the workflow engine for long-running human and agent work: durable state, retries, idempotency, approvals, replay, compensation, and auditability
• →Design identity and authorization for humans, services, and agents: principals, delegation, scoped sessions, tenant isolation, and traceable authority
• →Build a versioned policy engine governing who or what can perform which action, on which resource, under what context
• →Own secure storage and use of customer keys, OAuth tokens, and admin credentials: isolation, rotation, ephemeral injection, revocation, and blast-radius containment
• →Own the boundary between probabilistic model behavior and deterministic execution: validation, evals, and release gates
• →Build isolated virtual environments and dev boxes for agents, and ship the interfaces and APIs to author, approve, inspect, debug, and operate all of this in production

Tech stack: Not specified.

• Senior/Staff-level engineer, strongest in backend and systems architecture, and comfortable reaching across frontend, data, infrastructure, and product
• A track record of designing and operating complex production systems, and the ability to talk through what broke, how you recovered, and what you changed
• Real depth in at least one of: IAM/authorization, policy systems, workflow orchestration, security, multi-tenant SaaS, agent infrastructure, or virtualized execution
• A rigorous engineering mindset — reasons in invariants, threat models, failure modes, and user outcomes
• Moves quickly from ambiguity without trading away correctness, security, or operability
• Able to work on-site in San Francisco, Monday to Friday, at startup intensity

• A standout signal of excellence in some area — leading an important team at a high-growth company, top competitive-programming results, or elite achievement in another demanding pursuit
• A CS/engineering degree from a top program, or genuinely exceptional experience in its place
• Time spent on a high-caliber team at a strong engineering company
• A big-tech background, for the scalability and security depth it brings
• A high-agency track record — former founders, or early engineers who owned architecture, production, and customer-facing product

• Location — San Francisco, CA
• Work policy — On-site, Monday to Friday
• Compensation — $200,000–$300,000 + 1%–2% equity
• Visa sponsorship — Available (H-1B, O-1, OPT)
• Employment type — Full-time