JOIN THE TEAM
Judgment does not scale. Execution does.
We are building the operating system that transforms organizational judgment into executable decision systems.
12 engineering roles across 3 squads
ENGINEERING CULTURE
We are not building a powerful AI. We are building a responsible intelligence infrastructure. Strength is not the goal — resilience is. Autonomy is not the goal — controlled autonomy is.
We build systems that do not collapse.
Fail-Closed is our default.
Structure before speed.
Every decision must be replayable.
Tests define reality.
We do not unify contradictions. We surface them.
Observations may be automatic. Policies are not.
Boundaries are sacred.
We optimize for completion, not execution.
We design for the long horizon.
WHAT WE LOOK FOR
You think in invariants, not implementations. You design boundaries before features.
Specifications change. Invariants hold. You know which constraints must never break.
Logs are not noise — they are reconstruction material. You trace before you guess.
Speed comes from structure. You build systems that do not collapse under pressure.
If you cannot explain every decision in your implementation, it does not belong in production.
Universe isolation, tenant separation, gate enforcement — you never bypass for convenience.
ORGANIZATION
12 engineers + 1 Product Owner across three specialized squads, each with clear ownership boundaries and shared engineering standards.
5 members
Auth, Multi-tenancy, Real-time, Data Layer, LP/Frontend — the foundation every squad depends on.
4 members
Decision Pipeline, Approval System, Value Scanning, AI Reasoning — the brain of MARIA OS.
3 members
Observable, Resilient, Compliant, Production-ready — scaling MARIA OS for enterprise.
ENGINEERING STANDARDS
TypeScript strict mode. No `any`. No `as` casts without justification.
pnpm lint && pnpm tsc --noEmit && pnpm test && pnpm build — all green or no PR.
OpenAPI spec -> types -> implementation. Never the reverse.
Structured errors with correlation IDs. Never swallow exceptions.
Every query scoped by tenantId. Cross-tenant leak = Severity 0 incident.
All write operations must be safely retryable.
decision_transitions and evidence_bundles are INSERT-only. No UPDATE or DELETE.
TECH STACK
OPEN POSITIONS
Hiring is phased. P0 roles start immediately. Each role has a unique MARIA coordinate — your address in the system you are building.
CODE REVIEW
TEAM RITUALS
MARIA OS is stronger when composed of people who guard invariants, respect boundaries, and write tests — rather than flashy AI researchers. If that is you, we want to talk.
owner: @bongin_max