Founding Engineer - Product (£90k-£120k + Equity) at Material Difference

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 Founding Engineer - Product (Front-end/Full-stack) Salary £90k-£120k + Equity Company Description Material Difference is a venture-backed Cambridge University spin-out that recently closed a $4m oversubscribed round to transform critical mineral exploration using explainable AI. Job Description As the first product-focused engineer, you will own the user experience and visualization layer of our subsurface mapping platform. You’ll transform complex ML models into interactive 3D tools that global mining leaders trust to make multi-million dollar drilling decisions, helping secure the essential minerals needed for the global energy transition. Location London, UK Why this role is remarkable Work on a mission-critical problem: the world needs more copper and lithium than ever before, and your code directly accelerates the global energy transition.True founding-team impact as the first product engineer, shaping the technical architecture and engineering culture from day one with significant equity and ownership.High-caliber environment within a Cambridge spin-out supported by industry veterans and $4m in fresh funding to scale breakthrough geoscience technology to the world's largest miners. What You Will Do Build and own interactive 3D subsurface visualizations using WebGL/Three.js to make complex geological uncertainty legible for expert and executive decision-makers.Collaborate directly with the ML team to integrate explainable AI models into a reliable, enterprise-grade product used by the world's largest mining companies.Iterate rapidly on workflows and interfaces based on real-world user feedback from pilots, moving the platform from a powerful demo to a must-have product. The ideal candidate Deep expertise in TypeScript and React with a proven track record of shipping production-grade 3D, WebGL, or geospatial visualizations like Three.js, deck.gl, or Cesium.Experience building B2B or enterprise SaaS products that have navigated complex security and procurement reviews, ideally within scientific, engineering, or geospatial domains.An entrepreneurial, self-directing mindset with the resilience to thrive in an ambiguous, early-stage environment without a defined playbook and a passion for climate-tech mission. 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.