Founding Software Engineer
Full-timePosted 2d ago
About the role
Founding software engineer role focused on building agentic AI systems for mortgage origination, with emphasis on backend development, AI agent orchestration, and regulated industry integrations. On-site in San Francisco, reporting to founders.
Responsibilities
- Designing and building agentic AI pipelines: tool use, multi-step orchestration, evaluation, and reliability at scale
- Backend services in Python (FastAPI) on Aurora PostgreSQL and AWS
- Multi-tenant architecture with strong security and compliance boundaries
- Integrations with mortgage industry platforms (LOS systems, voice, messaging)
- Frontend experiences in React, Vite, and TanStack when the product calls for it
Qualifications
- Strong fundamentals in backend engineering (Python preferred)
- Hands-on experience building with LLMs: agent loops, tool calling, prompt engineering, evals
- Comfort with PostgreSQL, schema design, and migrations
- Exposure to multi-tenancy patterns, auth, or compliance-aware systems is a plus
- Bonus: sharp design sensibility and strong frontend skills (React, Vite, TanStack)
- High energy, low ego, genuine curiosity about how things work
- You care about the people using what you build
Skills
Required:Backend engineering (Python)LLM / AI agent engineeringPostgreSQL
Nice to have:OAuth / multi-tenancy / authFrontend (React, Vite, TanStack)
Last updated Oct 25, 2026. Interested? Apply on the company site.
About Copperlane
Agentic Mortgage Origination
Copperlane helps mortgage lenders accelerate the loan process and reduce mistakes in an application. We use AI agents to understand an applicant's profile, verify their documents, and complete initial underwriting tasks.