Mid-Level Backend Product Engineer

Mid-Level Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure, Start-up | High Ownership, 0→1 Product Builds | UK remote | £60-80k base The Company We're partnering with an early-stage AI company building data-intensive products that help organisations make better decisions from complex information. They're combining software engineering, data infrastructure, retrieval and applied AI to build a new generation of intelligent products. They already have customers and are entering their next stage of growth, with a major new product direction and an engineering team to build. The Role – Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure | High Ownership, 0→1 Product Builds | UK remote | £60-80k base You'll join a small engineering team with significant ownership from day one. This is a backend-focused Product Engineering role, primarily working across Python, SQL, data and AI, while contributing across the wider product when needed. You'll work on real customer problems rather than isolated tickets — taking features from an ambiguous idea through to production. What You'll Be Doing - Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure | High Ownership, 0→1 Product Builds | UK remote | £60-80k base Building backend services and APIs in PythonWorking extensively with SQL / PostgreSQLBuilding data pipelines and data-intensive featuresDeveloping RAG, retrieval and semantic search capabilitiesBuilding production AI/LLM featuresTaking product features from idea → productionContributing across the stack when requiredUsing AI development tools extensivelyWorking directly with senior engineers and product leadership Tech - Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure | High Ownership, 0→1 Product Builds | UK remote | £60-80k base Python | SQL | PostgreSQL | TypeScript | AWS | RAG | LLMs | APIs | Data Pipelines AI is deeply embedded into how the team develops software. You'll be encouraged to use modern AI coding tools to move quickly, while understanding, testing and taking ownership of what you ship. What They're Looking For 2+ years commercial software engineering experienceStrong backend development experienceCommercial Python experienceStrong SQL / relational database fundamentalsProduct mindset and genuine ownershipComfortable working with ambiguityCurious about AI, LLMs and modern development toolingHappy contributing outside your core specialism when neededStartup mentality — adaptable, proactive and keen to move quickly Nice to have: RAG / semantic search experienceLLM or AI product experienceTypeScriptAWSData engineering / data-intensive systemsStartup or scale-up experience You don't need to tick every box. They're particularly interested in engineers who are curious, adaptable and capable of taking ownership beyond their years of experience. Interview Process - Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure | High Ownership, 0→1 Product Builds | UK remote | £60-80k base Initial conversationShort take-home — AI use encouraged60-minute technical discussion30-minute culture conversation Why Join? - Product Engineer (Backend) | Python, SQL, RAG, AWS | AI & Data Infrastructure | High Ownership, 0→1 Product Builds | UK remote | £60-80k base Join an early-stage AI company at an important stage of growthSignificant ownership from day oneBuild real production products across Python, data, RAG and AILearn directly from experienced technical leadershipWork on difficult, ambiguous engineering problemsHelp shape a growing product and engineering teamAI-native engineering environmentLondon / remote flexibilityEquity alongside salary If you're a backend-focused Python Engineer who wants more product ownership, exposure to AI and the opportunity to grow quickly within an early-stage company, we'd love to hear from you. Apply with your CV and we'll be in touch if there's alignment.