Staff or Senior Product Engineer (£100k-£150k + Equity) at Alecto

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title Staff or Senior Product Engineer Salary £100k-£150k + Equity Company Description Alecto is a London-based legal-tech startup backed by Firstminute Capital, building the UK's first AI-native law firm. Led by a founder who scaled Gen H to £1bn in annual lending, Alecto is disrupting the £4bn conveyancing market by replacing opaque, paper-heavy processes with advanced AI agents and regulated legal workflows. Job Description As an early product engineer at Alecto, you will build the platform’s core architecture from the ground up. You’ll work directly with the founder and senior engineers to ship AI agents that automate complex legal tasks. This is a high-ownership role where you’ll shape product direction and deploy production-ready code within your first week. Location London, UK Why this role is remarkable Join as a core member of an elite, small team of senior generalists where there are no PMs, giving you direct influence over every product and architectural decision.Work at the cutting edge of AI, building agentic systems and LLM-powered workflows that handle real-world, regulated legal processes rather than just simple chat interfaces.Backed by Firstminute Capital and led by a proven founder who successfully scaled a fintech to £1bn lending, offering high-growth potential in a massive £4bn market. What You Will Do Design and implement end-to-end features using a modern TypeScript monorepo, tRPC, and Inngest, ensuring high standards for reliability in a regulated environment.Develop and refine AI agents using LLMs and RAG techniques to automate the slow, paper-heavy workflows of traditional UK conveyancing.Engage directly with users to identify problems, form hypotheses, and iterate rapidly to define the product roadmap alongside the founding team. The ideal candidate Demonstrates deep full-stack experience in TypeScript, React, and Node.js, with a track record of owning complex features from ideation to production at early-stage startups.Possesses "Startup DNA"—you are comfortable with ambiguity, move fast without sacrificing quality, and have a relentless drive for self-improvement and technical excellence.Shows proficiency in modern AI tooling and an interest in bridging the gap between machine learning research and building production-ready, agentic systems. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? Jack's an AI agent for job searching and career coaching. He works for you.Jill is the AI recruiter working for the company. She recruits from Jack's network.If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.