Build the foundation of a new API-driven platform that simplifies how money moves through a complex, high-stakes domain.
Requirements
- 8+ years of backend or platform engineering experience, ideally in fast-paced or startup environments
- Strong experience building and scaling REST APIs and webhook systems
- Experience with transactional systems, reconciliation, or multi-service workflows (e.g., payments, event processing)
- Proficiency in modern backend stacks (e.g., TypeScript, Node.js, Ruby on Rails, PostgreSQL)
- Familiarity with cloud infrastructure (AWS), containerized apps, CI/CD workflows, and system monitoring
- Strong testing practices and experience with GraphQL or WebSocket APIs is a plus
Responsibilities
- Design and build core backend services powering mission-critical money movement workflows
- Own external-facing APIs and webhook infrastructure used by partners and third parties
- Drive integration with external services and internal platforms to ensure clean, reliable data flows
- Collaborate across product and engineering teams to build abstractions balancing flexibility with simplicity
- Help scale our systems from tens of millions to hundreds of millions in volume
- Contribute to architectural decisions, developer tooling, and API reliability from day one
Other
- Operate in a fast-paced, collaborative environment with high standards and low ego
- Clear communicator with a collaborative mindset and thoughtful decision-making in ambiguity
- Comfortable working onsite 3–5 days/week in New York City or Austin
