Senior Product Engineer, AI-Powered Recruiting Platform

Dex; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Dex is partnering with a fast-growing AI recruiting platform builder in London. You will own end-to-end product slices, from spec to production, with backend-heavy work and LLM-powered features shaping critical paths. You will ship, own it, and it stays shipped.

You’ll design core features for candidate search and dashboards, integrate LLMs, build backend services with Python/FastAPI and Postgres, and deliver frontend work in React/TypeScript while enforcing strong API contracts.

Qualifications

• Experience owning and shipping end-to-end features.
• Strong Python backend with FastAPI and Postgres.
• Experience integrating LLMs into production.
• Strong API discipline and versioning.
• Frontend experience with React and TypeScript.

Responsibilities

• Design and build core features for an AI-powered recruiting platform.
• Integrate large language models directly into critical product paths.
• Develop robust backend services using Python, FastAPI, and Postgres.
• Ship pragmatic frontend components in React and TypeScript.
• Define and enforce API contracts with clear error handling.

Skills

End-to-end ownership

API discipline

LLM integration

Backend engineering

Frontend review PRs

Tools

Python

FastAPI

Postgres

Redis

React

TypeScript

Job description

Dex is partnering with a fast-growing AI recruiting platform builder in London. You will own end-to-end product slices, from spec to production, with backend-heavy work and LLM-powered features shaping critical paths. You will ship, own it, and it stays shipped.

You’ll design core features for candidate search and dashboards, integrate LLMs, build backend services with Python/FastAPI and Postgres, and deliver frontend work in React/TypeScript while enforcing strong API contracts.