kernel - Senior Product Engineer
Requirements
• 6+ years of software or product engineering experience • Strong experience building and scaling production systems • Comfort with backend engineering (NodeJS, Postgres, TypeScript) • Strong understanding of LLM application development patterns (RAG, prompt engineering, consistency testing) - either through production experience or demonstrated personal projects. If you're new to LLMs but have shipped complex production systems in other domains and are comfortable rapidly learning new technologies, we'd still love to hear from you. • Ability to operate autonomously in a small, high-velocity team • Excellent communication and collaboration skills • Some experience with Kubernetes or distributed systems • IT IS A PLUS IF YOU ALSO HAVE: • Experience working on AI-driven or data-heavy products • Frontend experience (NextJS, React, TypeScript) • Understanding of CRM data models or workflow automation • ⚠️ THIS ROLE MAY NOT BE FOR YOU IF YOU: • Need lots of structure or long-term roadmaps • Prefer perfect specs before building • Focus narrowly on backend or frontend only • ❌ THIS ROLE IS DEFINITELY NOT FOR YOU IF YOU: • Prefer fully remote work (this role requires at least 3 days a week in the office) • Don’t enjoy the pace of early-stage startups • Want to manage a team rather than build • Back-end (AWS): NodeJS, TypeScript, Postgres • Front-end: NextJS, TypeScript, Tailwind • Workflow automation: n8n • 🎫 VISAS & RELOCATION • We sponsor visas for exceptional candidates and provide relocation support for those moving to London.
Responsibilities
• Designing and developing product features that directly impact user workflows • Collaborating with design, product, and other engineers to deliver exceptional user experiences • Writing and maintaining clean, reliable, and scalable code across the stack • Helping ensure performance and reliability for large-scale data operations • Automating workflows to improve developer velocity and reduce manual work • Supporting integrations with CRMs and third-party APIs • Participating in roadmap discussions and contributing technical insights
Benefits
• We will do our best to offer you a ride of a lifetime. It will not be easy, but it will be thrilling. • 🗓️ 24 days holiday per year + bank holidays • 🥕 £450 Monthly Office Dinner Allowance • ✈️ 2 weeks work-from-anywhere • 🍼 Generous parental leave policy • 💼 Pension plan • 💻 Top-spec equipment and central London office • 🎉 Team events and dinners • 🚀 Work directly with the founders to scale the systems that power enterprise AI • 🏆 High-autonomy, high-trust environment with a small team shipping at pace
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