AI Engineer, Ecosystem

Experience building and owning production software, including systems that integrate with or depend on third-party platforms.

Demonstrated technical ownership for user-facing products with real external customers.

Deep experience with identity, authentication, and secure data access across system boundaries, including OAuth and role-based access control (RBAC) for permissions.

Proven ability to ship and operate reliable integrations with external APIs and clients outside your control.

Strong product judgment, written communication, and end-to-end ownership, including accountability for quality and launch readiness.

Experience publishing and maintaining apps or integrations in third-party marketplaces (iOS, Slack, Shopify, GitHub, Chrome, etc.).

The expected salary range for this role is $171,000 - $240,000 USD.  However, the starting base pay will depend on a number of factors including the candidate’s location, skills, experience, market demands, and internal pay parity. Depending on the position offered, equity and other forms of compensation may be provided as part of a total compensation package.

Brex LLC is a wholly owned subsidiary of Capital One, N.A.

Please be aware, job-seekers may be at risk of targeting by malicious actors looking for personal data. Brex recruiters will only reach out via LinkedIn or email with a

brex.com

domain. Any outreach claiming to be from Brex via other sources should be ignored.

You’ll be a technical owner for Brex’s external AI ecosystem: the integrations, surfaces, and standards that allow customers to interact with Brex through third-party assistants and platforms.

Over the next year, you’ll turn early integrations into first-class, exemplar applications — stable, secure, and opinionated — that are showcased by platform partners and relied on by power users at Brex’s most sophisticated customers.

You’ll design how Brex data and actions are safely exposed, how permissions and auditability work across boundaries, and how new capabilities (including richer UI surfaces) are introduced over time.

This is a product role disguised as infrastructure.

Success is measured by real usage, trust, and customer reliance — not by the number of integrations shipped.

Own Brex's MCP Apps for OpenAI, Claude, Slack, and other embedders, including roadmap decisions across core and long-tail partners.