CuspAI

Senior Product Engineer (Python/AI)

In short

Senior Product Engineer role building and owning internal applications for proprietary research and discovery workflows at an AI startup, partnering with the VP of Product and collaborating with AI Researchers and Data Engineers. Requires 4+ years of full-stack engineering experience, Python expertise with FastAPI/Django/Flask, Node.js, and React/Vue/TypeScript. The job is hybrid, based in the UK, Netherlands, or Germany, and demands strong architectural decision-making for greenfield projects plus a product-focused mindset.

About the Role
You will build and own internal applications that support proprietary research and discovery workflows. You will partner with the VP of Product to turn research needs into technical roadmaps and intuitive software, designing backend services, responsive user interfaces, and scalable platform integrations. You will work with AI Researchers and Data Engineers to support complex data flows and align tools with infrastructure and security standards.
Requirements
•4+ years of professional full-stack software engineering experience
•Experience building and maintaining production-grade applications
•Python expertise
•Experience with FastAPI, Django, or Flask
•Node.js proficiency
•Experience with React, Vue, or TypeScript
•UI/UX best-practice knowledge
•Ability to make architectural decisions for greenfield projects
•Product-focused approach
Responsibilities
•Lead development of scalable internal applications
•Translate research needs into technical roadmaps and intuitive software solutions
•Own the end-to-end lifecycle of internal tools from architecture through frontend deployment
•Design and build Python backend services integrated with AI and research engines
•Partner with Data Engineering to ingest and visualise complex datasets
•Develop responsive user interfaces for complex data
•Collaborate with AI Researchers and Data Engineers to build effective tools
•Align internal tools with infrastructure and security standards
Benefits
•Equity in CuspAI
•28 days of holiday in Germany, the Netherlands, and the United Kingdom, or 21 days in Japan, Singapore, and the United States, plus local public holidays
•26 weeks of fully paid parental leave for primary caregivers
•12 weeks of fully paid parental leave for secondary caregivers
•Professional development budget

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