AI Engineer, Ecosystem

brex· 30 open roles

Location TBD On-siteFull-timeYesterday

Salary

$171,000 - $240,000

Experience

Mid

Job Type

Full-time

Posted

Yesterday

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About This RoleAI processing…

Brex is the intelligent finance platform that enables companies to spend smarter and move faster in more than 200 markets. By combining global corporate cards and banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations, gain real-time visibility, and control spend effortlessly. Brex’s AI-native automation and world-class service eliminate manual expense and accounting tasks for customers so they can focus on what matters most. Tens of thousands of the world's best companies run on Brex, including DoorDash, Coinbase, Robinhood, Zoom, Plaid, Reddit, and SeatGeek.

Working at Brex allows you to push your limits, challenge the status quo, and collaborate with some of the brightest minds in the industry. We’re committed to building a diverse team and inclusive culture and believe your potential should only be limited by how big you can dream. We make this a reality by empowering you with the tools, resources, and support you need to grow your career.

Key Responsibilities

1
Own Brex's MCP Apps for OpenAI, Claude, Slack, and other embedders, including roadmap decisions across core and long-tail partners.
2
Define the technical, UX, and reliability standards for how Brex surfaces and operates within external AI assistant ecosystems.
3
Design and maintain secure, auditable integration patterns, including permissions, read/write access, and acting on behalf of users across third-party environments.
4
Build and operate production-grade integrations that remain resilient amid evolving platforms, unpredictable clients, and shifting constraints.
5
Partner cross-functionally with Security, Platform, Sales, Enablement, and internal agent teams to ensure integrations are safe, valuable, and well-supported.
6
Serve as the center of excellence for reusable AI capabilities across Brex, defining and evangelizing standards, patterns, and shared components that power AI functionality both within the Brex platform and across external ecosystem integrations.

Requirements

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.