We're solving one of the largest problems in the physical world: housing that's too slow and too expensive to build. The $2 trillion construction industry runs on human expertise that doesn't scale - so we're building the AI that understands what to build and how to build it.We start with the costliest problems for general contractors - the multi-million-dollar decisions that Claude cannot solve. Tyce Agent wins more projects and estimates costs on multi-million-dollar builds live at one of the landmark construction companies today.We just closed a 7-figure round and are hiring to build the best AI platform for construction.Market-competitive salary and equity.What You'll DoYou'll own the backbone: the APIs, data model, integrations, and systems that everything else stands on. A true generalist who's happiest owning a problem end-to-end.Build core backend systems in FastAPI + PostgreSQL - APIs, data model, auth, org/permissions.Handle the but critical parts: security, multi-tenancy, reliability, observability.Drop into the frontend (React / TypeScript)



whenever the product needs it.Ship new features day-to-day alongside the founders and make real architectural decisions.We're on a modern, lean stack: React Router framework, TypeScript, FastAPI, PostgreSQL, Pydantic-AI, Logfire, AWS.Required QualificationsMid-to-senior level of engineering experience.Expert in Python; strong in TypeScript / React.Have shipped and maintained real backend systems in production.Go-getter mindset, personal agency, fast learner, excellent verbal and writing skills.Nice-to-have QualificationsHaving any of these is a strong plus — tell us your superpower:Built B2B apps with security, authentication, org structure, and third-party integrations.Built integrations with APIs like Google Drive, Sharepoint, etc...Worked with AI agents and understand the plumbing around LLMs.Product sense and general design thinking.#J-18808-Ljbffr

📌 Founding Full Stack Software Engineer (Backend-Focus) (Toronto)
🏢 Tyce
📍 Toronto