Brex
AI Engineer, Ecosystem
About this role
Lead the development and management of Brex's external AI ecosystem, building integrations that enable customers to interact with Brex through third-party AI assistants and platforms. You'll own the technical standards, security patterns, and reliability of these integrations while partnering across teams to ensure safe, valuable, and well-supported experiences for power users.
What you'll do
- Own MCP Apps for OpenAI, Claude, Slack, and other AI platforms, including roadmap and partnership decisions
- Define technical, UX, and reliability standards for Brex integrations within external AI assistant ecosystems
- Design secure, auditable integration patterns with proper permissions, access controls, and user representation across third-party environments
- Build and operate production-grade integrations that remain resilient amid evolving platforms and constraints
- Partner cross-functionally with Security, Platform, Sales, and internal teams to ensure integrations are secure and well-supported
- Establish reusable AI capabilities and standards that power Brex's AI functionality across internal and external integrations
What they're looking for
- Production software engineering and system design
- Identity, authentication, and OAuth/RBAC implementation
- Third-party API integration and maintenance
- Product ownership and user-facing product development
- Security and data access patterns across system boundaries
- Written communication and cross-functional collaboration
- Marketplace app publishing and ecosystem development
Benefits
- Hybrid work: 3 days in Seattle office per week (Mon/Wed/Thu) with up to 4 weeks fully remote annually
- Competitive salary: $171,000 - $240,000 USD
- Work on cutting-edge AI agent technology at scale
- Collaborate with world-class engineering and product teams
- Career growth opportunities with tools and resources to develop
- Inclusive, diverse culture committed to employee potential
Opens the official application on the employer’s site. No login required.
Brex
Brex builds mission-critical financial infrastructure and credit decisioning systems that power banking and spending management for companies globally. The company is hiring Backend Software Engineers II to develop scalable systems including underwriting engines, real-time data pipelines, and ML-powered credit models across 200+ markets.
- Website
- brex.com
Likely interview questions
- Walk us through a production integration you've owned with a third-party platform. How did you handle reliability when you didn't control the external system?
- Tell us about your experience with OAuth, authentication, and permission models across system boundaries. How would you approach securing financial data exposed to external AI assistants?