Senior Full Stack Engineer (backend leaning)

About the Role Our client is an early-stage, venture-backed fintech startup on a mission to expand access to financial tools for people historically excluded from the traditional credit system. They're growing fast, capital-efficient, and looking for a Backend Engineer to help build and scale the infrastructure powering their products. This is a high-ownership role for someone who wants to own systems end-to-end, move fast, and lean heavily into AI-assisted development to multiply their output without sacrificing quality. What You'll Do Own backend systems and infrastructure end-to-end, from design through deployment and scaling Build performant, reliable APIs and services that power core financial products Design and implement scalable architectures on AWS using Node (TypeScript) Make pragmatic tradeoffs between speed, reliability, scalability, and maintainability Ship production code frequently while maintaining high quality standards Help establish technical patterns and best practices for the engineering team Interface effectively with product engineers and other stakeholders What We're Looking For Bachelor's degree in Computer Science or a related technical field 5+ years of professional software engineering experience, with a significant backend focus Experience building and scaling production systems with Node and AWS Proficiency with TypeScript strongly preferred Track record of delivering reliable, performant systems at scale Systems-oriented mindset with a deep focus on performance, reliability, and scalability Strong sense of ownership and accountability for system outcomes Comfortable thinking critically about architectural decisions and their long-term implications Thrives in ambiguity and can make sound technical decisions with incomplete information Self-starter who can work independently and drive projects to completion Embraces AI-assisted development to accelerate output while maintaining high code quality What to Expect High ownership with minimal bureaucracy A fast-moving environment where roles and priorities evolve quickly An intense pace of execution and growth — this is not a 9-to-5, work-life-balance-optimized role Speed, learning, and impact as core values Compensation Salary range of 150-250k USD/year + equity, depending on location and seniority.

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