Sr. Full-stack AI Engineer

Own AI-native products from the Postgres schema to the streamed tokens in the browser.

About Lejit

Lejit is an AI-native law firm with same-day turnaround, enabled by AI and lawyers. Lejit AI runs a law firm's entire client journey. Our all-in-one platform provides outcome-based, full-stack legal services across four areas:

Tech for law firms
Legal work for businesses
AI-native law firm
Tech for in-house teams

The Role

At Lejit, we need a Sr. Full-stack AI Engineer to own AI-native products from the Postgres schema to the streamed tokens in the browser.

What You Will Do

Build product frontends in React/Next.js and backend services in Python (FastAPI, async, typed).
Integrate LLMs into real legal workflows: SSE streaming, tool calls with retries, schema validation and structured output.
Build document pipelines for ingestion, OCR, parsing and versioning of contracts, orders and case files.
Own quality across the stack: p95 latency, token cost, error budgets and prompt regression tests in CI.
Work directly with the founders and go from specification to demo within the same week.

What We Need

4+ years of production full-stack work.
Strong TypeScript and Python.
Experience with provider APIs or vLLM/Ollama.
A shipped LLM feature.