Senior Software Engineer

Senior Full Stack Engineer As a Senior Full Stack Engineer, you'll design and ship high-performance web applications across our React/Next.js frontend and Node.js/Express backend with real autonomy. You'll make architectural calls, explain the tradeoffs behind them, and stand behind them in review. You'll work directly with product managers and stakeholders to shape requirements, not just receive them. And you'll help raise the bar for the engineers around you through mentorship and thorough code review. You won't be handed a ticket queue. You'll help decide what gets built, how it gets built, and why, then own that decision end-to-end. At Fastbreak AI, engineering isn't downstream of product; it's at the table shaping it. This is a role for someone who gets energized by complexity, cares about craft, and wants their fingerprints on the architecture of a product that's changing how sports organizations operate. Responsibilities Design and develop scalable, high-performance web applications using React, Next.js, and Express Own architectural decisions and be able to articulate the reasoning and tradeoffs behind them Integrate AI and LLM-powered features into production applications thoughtfully and with an eye toward reliability and user impact Collaborate with product managers and stakeholders to shape technical requirements from the ground up Diagnose and resolve complex bugs across the full stack Champion engineering best practices and help define how the team works at its best Fastbreak AI