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Sr. Backend Engineer, AI Projects

Pinwheel - New York, NY, United States - Hybrid - posted 2026-09-10

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Salary: USD 160,000 - 200,000 / annual

Pinwheel is a fintech company building payroll connectivity and income data infrastructure for financial applications. The company partners with major brands including Robinhood, DoorDash, Chime, Cash App, Credit Karma, American Express, Discover, Intuit, Acorns, and Visa to power next-generation financial products. The Integrations Platform (IP) team builds the services, primitives, and tooling that enable 1800+ integrations to work at scale. This includes proxy management, browser automation, identity flows, session handling, and the runtime that every Integrations Engineer builds upon. You will own AI-driven, platform-level problem spaces end-to-end, raise the technical bar, and make the Integrations Engineering team measurably more productive. You'll identify categories of recurring problems, design systems that eliminate them, and lead execution alongside junior and mid-level engineers. Key responsibilities: - Own platform initiatives end-to-end: scope, design, build, ship, and maintain - Drive systems design for new integration infrastructure, including services, queues, data pipelines, and async workflows - Lead projects staffed with junior and mid-level engineers; make them measurably more productive through code review, design feedback, and the systems you build - Identify and eliminate classes of problems rather than patching individual bugs - Set technical direction in ambiguous problem spaces - Collaborate closely with Integrations Engineering and adjacent teams to ensure platform primitives meet real consumer needs The role is hybrid with 3 days per week required in the NYC office near Union Square. REQUIREMENTS: - 5+ years of backend engineering experience - Computer Science degree or comparable experience - AI-forward thinking: demonstrated willingness to drive AI projects forward and set yourself apart from peers - Strong systems design: your designs get adopted by peers; you can defend tradeoffs and anticipate failure modes - Demonstrated autonomous project leadership: examples of owning ambiguous, multi-quarter projects from idea to business outcomes NICE TO HAVES: - Integrations experience: built against third-party APIs, dealt with auth flows, rate limits, and operational reality of depending on external systems - Browser automation experience (Selenium, CDP, Playwright) - Browser fingerprinting / detection work - Experience designing and operating services that handle concurrency, failure modes, and meaningful scale - Backend platform / infrastructure experience: services, queues, data pipelines, async processing - Python expertise - Fintech or comparable regulatory environment experience - Track record of reducing oncall noise

About Pinwheel

Fintech — payroll connectivity and income data infrastructure for financial applications.

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