BuildForever
Product Engineer
San Francisco / New York · Full-time · Posted Oct 30, 2026
About the job
Build consumer products end-to-end, from backend systems and infrastructure to polished, user-facing mobile and web experiences.
What you'll do
- Build and refine consumer features across the stack, including APIs, data models, backend logic, and UI.
- Collaborate with founders and design to prototype ideas, shape product direction, and deliver polished experiences.
- Improve reliability, performance, and architecture while helping set early engineering standards.
What they ask for
- Experience building consumer-facing mobile or web products end-to-end.
- Experience with one or more core technologies: Swift, React, UIKit, Python/FastAPI, or Docker.
- Experience shipping production systems in cloud environments.
- Ability to prototype quickly while maintaining quality, usability, and code standards.
Nice to have
- Experience with modern AI tooling, such as LLMs, embeddings, retrieval, or agents.
- Evidence of craftsmanship and product taste through past work, personal projects, or side apps.
Tools
Swift, React, UIKit, Python/FastAPI, Docker, GCP, Cloud Run, LLMs
AI focus
Work on systems that blend ML with user experience and use modern AI technologies; experience with LLMs, embeddings, retrieval, or agents is sought.
Model-written summary · the original posting is authoritative