Senior Full-Stack Engineer (Python + Next.js)
- Alex Cooper (Co-founder) - Former COO at UNDO, Director of Mass Testing for the UK's Department of Health, and Advisor for 10 Downing Street
- Ben Warner (Co-founder) - Former Chief Advisor on Digital and Data to the UK Prime Minister, Data Scientist at Faculty, and EPSRC Research Fellow at UCL
What You'll Do
- Build and ship production features end-to-end across Python , SQL , and Next.js .
- Design APIs, data pipelines, and UIs that make complex model outputs intuitive and actionable.
- Own architecture and design decisions - schemas, modularisation, and system patterns.
- Refactor and optimise existing systems for performance and maintainability.
- Improve quality and speed through testing and CI/CD.
- Work side-by-side with founders and senior engineers - we collaborate on-site four days a week.
- 5+ years' experience building production software (exceptional 4+ considered).
- Strong proficiency in Python and SQL for scalable back-end systems.
- Skilled with TypeScript , React , and Next.js for high-quality front-end work.
- Solid testing habits and CI/CD experience.
- Product-focused mindset and attention to code quality.
- Comfortable working on-site in a fast-paced, collaborative startup.
- Experience with data-heavy or high-throughput systems.
- Exposure to applied AI or LLM integrations (no model training required).
- Familiarity with GCP , especially IAM, networking, and security.
- Impact - Shape both the product and how we build it.
- Pace - We ship weekly; your work goes live fast.
- Team - Small, sharp, and experienced.
- Learning - Work hands-on with cutting-edge AI applications that matter.
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