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Lead Full Stack Engineer – Partner Ecosystem Platform. I’m working with a high-growth fintech infrastructure company that builds a core decisioning and identity platform used by banks and fintechs to manage fraud, compliance, and customer onboarding at scale. The product sits directly in revenue-critical and regulatory workflows, and the engineering team is operating at a high bar as the platform continues to grow in volume and complexity. They’re hiring a Lead Full Stack Engineer to take technical ownership of a partner ecosystem platform that enables hundreds of third-party data providers to integrate cleanly and reliably into the core product. This is a hands-on lead IC role, focused on system design, platform thinking, and execution rather than people management.
Job Responsibility:
Designing and building a scalable integration platform used by external data partners
Owning architecture and delivery of production-critical systems
Working across the stack using TypeScript/React on the frontend and Python-based backend services
Partnering closely with product and design to turn ambiguous requirements into robust platform capabilities
Providing technical leadership through code quality, design decisions, and mentorship
Requirements:
Strong senior-to-lead level full stack engineering experience in production environments
Meaningful experience integrating external APIs, data providers, or partner systems
Solid system design and architectural judgement
Comfort owning complex problems end to end
Strong experience with relational databases (e.g. Postgres)
Nice to have:
Experience building developer platforms, SDKs, or integration tooling