Salary: £55,000 - 55,000 per year Requirements: Strong experience with modern React (Hooks, Composition) and building data-heavy interfaces Proficient in Python, particularly with FastAPI and Pydantic Familiarity with async APIs and strong typing/validation Understanding of testing principles, including the Testing Pyramid (Pytest, Vitest, Cypress) Excellent problem-solving skills and a focus on user experience Experience with CI/CD, Docker, and cloud environments (GCP) Knowledge of PostgreSQL and Redis is a plus Ability to design and implement high-performance UI components Responsibilities: Build and ship full-stack features, including AI analysis visualisations and advanced workflows Design complex React components ensuring optimal performance under heavy data loads Enhance AI integration through improved candidate scoring and bias reduction Scale architecture by extending FastAPI services with a focus on performance and validation Collaborate closely with the leadership team and provide input on technical roadmap Advocate for testing and ensure code quality throughout development Tackle real-world problems with meaningful ownership of projects Technologies: AI CI/CD Cloud Cypress Docker FastAPI GCP PostgreSQL Python React Redis pytest UX UI Design Backend CSS Frontend GitHub LLM Security TypeScript Fullstack More: At Crooton, we are on a mission to build an AI-powered recruitment intelligence platform that transforms high-volume hiring. We offer a modern tech stack with no legacy issues, allowing our team to innovate without constraints. Our AI-first culture means that we leverage AI to enhance our development processes. You will be part of a small, senior team where your contributions make a real impact. We provide a competitive salary range of £55,000 - £65,000 depending on experience, performance-related bonuses, and a hybrid working model based in Peterborough. last updated 5 week of 2026