Senior Backend Engineer - NYC

Senior Backend Engineer Note: This role is 100% on-site in NYC Number of Vacancies: 2 About the Company Our client is an early-stage, high-growth fintech startup revolutionizing compliance in the financial services industry. Their AI-first platform consolidates compliance software functionality onto a single modern platform, helping fintechs, private funds, and wealth managers cut compliance tasks from days to hours. They’ve raised $4.8M from top-tier investors including YC and General Catalyst , have hundreds of financial firms already onboard , and are one of the fastest-growing startups in their batch . This is an opportunity to join a small, ambitious team (currently ~10 employees) and have a major impact on a product that’s reshaping a $100B+ industry. What You’ll Do As a Senior Backend Engineer, you will: Design, build, and scale secure, high-performance backend systems on AWS Develop and maintain data infrastructure that supports large-scale data ingestion and processing Collaborate closely with product, design, and data science teams to bring new features to life Implement and optimize AI-based coding tools to enhance system performance Take full ownership over the systems and features you build Continuously improve system reliability, scalability, and security Contribute to architectural decisions and technical strategy in a fast-paced startup environment Role Requirements Must-Haves: 2–5 years of professional backend or full-stack engineering experience Strong experience architecting secure and scalable systems in AWS Deep experience with data-intensive or data-heavy backend applications Strong skills in Node.js, Infrastructure-as-Code, and building scalable data infrastructure Knowledge of AI and machine learning algorithms and experience with AI coding tools (e.g. Claude Code) Bachelor's degree in Computer Science or Computer Engineering (preferably from a top 50 school) US Citizen or already authorized to work in the US Willingness to work on-site in NYC (5 days/week) Nice-to-Haves: Experience with search systems (e.g. OpenSearch) Experience as an early-stage startup employee or founder Previous work in Series B–D stage AI or data-heavy startups Tech Stack Node.js, React, Postgres, MySQL, DynamoDB, AWS, OpenSearch, Claude Code, Infrastructure as Code Compensation & Benefits Salary: $160K – $220K Equity: Competitive equity packages Health, dental, and vision insurance Paid time off and company holidays Opportunity to shape product direction and engineering culture Interview Process Initial Screen – 15 mins Take Home Assignment – 2 days Take Home Review & Technical Phone Screen – 1 hour Onsite Interview – 4 hours Offer & Hiring #J-18808-Ljbffr