Sr. Software Engineer – API & Auth Platform
Core
Building and operating shared GraphQL API frameworks, authentication, and access control systems for customer-facing web/mobile apps and internal tooling in a regulated financial environment.
Role type
Senior IC Software Engineer (API & Auth Platform)
Builds
GraphQL API frameworks, auth/authorization systems, and internal tooling for AI agents and product teams
Domain
Financial Services / API Infrastructure / Security
Deliverable
production ML models | product features | infrastructure
Required skills
GraphQL, OAuth 2.0, OIDC, passkeys, server-side development (Ruby/Java/TypeScript/C#/Python), observability, incident response, mentoring
Preferred skills
AI tooling integration, agentic API development, regulatory compliance navigation
Technologies
GraphQL, OAuth 2.0, OIDC, passkeys, Ruby, Java, TypeScript, C#, Python
Responsibilities
Build core GraphQL API frameworks for customer-facing and internal apps; Contribute to authentication and authorization systems; Build platform capabilities like secure MCP access; Embed with product teams to develop domain expertise; Participate in incident response and invest in observability; Mentor junior engineers
Seniority
Senior, hands-on IC
