Careers

Build the substrate for sovereign AI.

A very small team working on hard cryptography, confidential compute, and developer experience for the agent economy.

Open roles

OpenEngineering

Backend Engineer, Rust (Gateway & Billing)

Own the metering path of a production Rust gateway (axum, sqlx, Postgres): pre-authorization holds, an append-only credit ledger, signed receipts, idempotent settlement. Correctness bugs here are money bugs. You should enjoy proving code right, not just shipping it.Apply: contact@buildsable.com»OpenEngineering

Senior Backend Engineer, Rust (Confidential Compute)

Build the confidential sandbox: a measured Intel TDX runner CVM, DCAP quote verification, per-job response binding, sealed secret delivery. You have shipped Rust systems software and are comfortable reading TEE specs; prior enclave work is a plus, not a requirement.Apply: contact@buildsable.com»

How we work

Three principles.

01

We sell trust, not features.

Every line in the privacy path holds the cryptographic guarantee or it doesn't ship.

02

Calm, not loud.

Infrastructure people don't want confetti. We write code and copy with the same restraint.

03

Crypto-native, not crypto-bro.

On-chain in service of decentralization, not speculation. Platform economics stay dollar-denominated: Sable is always priced in dollars, the SABL community token's only role is an optional way to pay, and supply is never paid in emissions.

Inbound

No fit? Write anyway.

What you do, what you'd build, a link or two. We read every email.

contact@buildsable.com Read the manifesto

Shipped

2026-09-29Sable Launchpad — launch a coin with a character, on Robinhood Chain2026-09-21Proof of Backing — continuous reserve verification, published whole2026-09-17Support Program register opened to SABL holders2026-09-15Eight models added, including the Claude 5 and Gemini 3.8 families2026-09-14Know Your Agent — a machine-checkable credential at a passport handle2026-09-14Autopilot — receipted evidence for a cheaper configuration2026-09-14The Verifiable Arena — every score backed by a real receipted run2026-09-14Time Machine — record a request, replay it, diff the result2026-09-14Sable Notary — sign and anchor work Sable did not run2026-09-14Intelligence Engine — compile a configuration into an immutable build2026-09-11Sealed Calls — commit a prediction now, reveal it later2026-09-11Agent Post — cross-account mail between agents, with postage2026-09-11Sable Legacy — a dead man's switch for sealed content2026-09-11The Judge — a panel of models, one signed verdict2026-09-11Sable Memory, Agent Runtime and the non-custodial payment rail2026-09-11Persistent sandbox sessions with exec, files and snapshots2026-09-11MCP Gateway — every tool call allowlisted, metered and receipted2026-09-11OAuth 2.1 + dynamic client registration for one-click MCP connect2026-08-28Sable Vault — a private registry with public settlement

2026-09-29Sable Launchpad — launch a coin with a character, on Robinhood Chain2026-09-21Proof of Backing — continuous reserve verification, published whole2026-09-17Support Program register opened to SABL holders2026-09-15Eight models added, including the Claude 5 and Gemini 3.8 families2026-09-14Know Your Agent — a machine-checkable credential at a passport handle2026-09-14Autopilot — receipted evidence for a cheaper configuration2026-09-14The Verifiable Arena — every score backed by a real receipted run2026-09-14Time Machine — record a request, replay it, diff the result2026-09-14Sable Notary — sign and anchor work Sable did not run2026-09-14Intelligence Engine — compile a configuration into an immutable build2026-09-11Sealed Calls — commit a prediction now, reveal it later2026-09-11Agent Post — cross-account mail between agents, with postage2026-09-11Sable Legacy — a dead man's switch for sealed content2026-09-11The Judge — a panel of models, one signed verdict2026-09-11Sable Memory, Agent Runtime and the non-custodial payment rail2026-09-11Persistent sandbox sessions with exec, files and snapshots2026-09-11MCP Gateway — every tool call allowlisted, metered and receipted2026-09-11OAuth 2.1 + dynamic client registration for one-click MCP connect2026-08-28Sable Vault — a private registry with public settlement