Founding AI Platform Engineer AT Cepter

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 AI Platform Engineer Salary Not Disclosed Company Description cepter is a London-based AI platform backed by Visionaries Club and leaders from Google DeepMind, automating the development and financing of renewable-energy assets.

Join cepter as a founding engineer to build the AI infrastructure powering the renewable energy transition. You'll own the production AI systems, developer platform, and AI-native engineering rules. Working directly with founders, you'll ship production-scale agent architectures and product features that help developers and financiers manage solar, wind, and battery projects. Location London, UK Why this role is remarkable

• Work at the intersection of AI and renewable energy, building the technical foundation for a platform with active clients and revenue.
• High-level ownership of the entire engineering stack, from agent orchestration and context engineering to core CI/CD pipelines.
• Backed by elite investors including Visionaries Club and leaders from Google DeepMind, shaping technical DNA from day one. What You Will Do
• Design and implement production-scale agent architectures, focusing on context engineering, routing, retrieval, and reliability for legal due diligence workflows.
• Build the developer platform, including repository architecture, automated testing environments, and observability tools to ensure high-velocity, safe deployments.
• Establish AI-native engineering practices by creating the rules and guardrails that allow coding agents to work effectively alongside the human team. The ideal candidate
• At least 4+ years of professional engineering experience with a track record of designing, shipping, and operating complex production software.
• Hands-on expertise with agent-based systems, including retrieval-augmented generation (RAG), tool use, structured outputs, and evaluation frameworks.
• Strong fundamentals in backend and infrastructure, with experience using technologies like Python, FastAPI, PostgreSQL, and Temporal in a cloud-native environment. 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.