Senior Fullstack Engineer (US)

Handoff, an AI-powered construction company platform backed by Y Combinator, Sequoia, Initialized, and Greycroft with $25M+ in funding, is seeking a Senior Fullstack Engineer. The platform serves over 10,000 monthly active users and handles $6B in annualized project volume, helping remodelers automate estimating and streamline operations.

As a Senior Fullstack Engineer, you'll be instrumental in shaping both frontend and backend architecture, ensuring seamless performance across mobile and web platforms. The role combines technical expertise with deep involvement in understanding contractor workflows and implementing AI-powered automation. You'll work from their Austin hub, collaborating with teams across São Paulo and Buenos Aires.

The ideal candidate brings 7+ years of frontend and backend development experience, with strong proficiency in Typescript, Node, and React Native. You'll need expertise in Python, SQL, and cloud architectures, plus a track record of optimizing API performance and creating responsive frontend components. The role offers competitive compensation, comprehensive benefits, and equity, along with unique perks like worldwide team offsites.

This is an opportunity to join a fast-growing startup that's transforming the construction industry through technology. You'll be part of a team that values product impact and technical excellence, working on solutions that make a real difference for contractors and builders.