Senior Backend Engineer

Role Summary

This is a senior backend engineering role at a bootstrapped fintech startup building credit-access products for underserved Americans. You'll own critical infrastructure end-to-end — from design through deployment — and play a meaningful part in shaping the technical direction of a small, high-ownership engineering team.

Responsibilities

• Own backend systems and infrastructure end-to-end, designing, deploying, and scaling them on AWS.
• Build performant, reliable APIs and services that power consumer financial products.
• Design and implement scalable architectures using Node.js and TypeScript.
• Make pragmatic tradeoffs between speed, reliability, scalability, and maintainability.
• Ship production code frequently while maintaining high quality standards.
• Establish technical patterns and best practices for the engineering team.
• Collaborate with product engineers and stakeholders to drive meaningful outcomes.
• Leverage AI-assisted development tools to accelerate delivery without compromising quality.

Requirements

• 5+ years of professional software engineering experience with a significant backend focus.
• Proven track record building and scaling production systems with Node.js and AWS.
• Proficiency with TypeScript for backend development.
• Experience designing and implementing scalable backend architectures and APIs.
• Strong sense of ownership and accountability; comfortable working end-to-end from design through deployment and monitoring.
• Ability to think critically about architectural decisions and their long-term implications.
• Comfort thriving in ambiguity and making sound technical decisions with incomplete information.
• High standards for code quality and system reliability.
• Enthusiasm for AI-assisted development as a force multiplier — and the judgment to use it well.
• Nice to have: Experience in fintech, financial services, or credit systems; familiarity with React/Next.js; experience establishing engineering best practices within a team.
• Salary range: $150,000 – $250,000 USD annually. Visa sponsorship is not available for this role.