Senior Software Engineer

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 Senior Engineer Salary £80,000 + Equity Company Description REGULEX AI LIMITED is a London-based fintech that raised £250k in pre-seed funding from industry veterans to revolutionize how capital flows to fund managers. Backed by the Investment Association's SPARKS accelerator and Antler, they build real-time AI systems that transform fragmented public filings and market signals into commercial actions for multi-billion pound funds. Job Description As the first engineering hire at REGULEX AI LIMITED, you will inherit a live system with real users in regulated firms. You'll own the infrastructure, data architecture, and product modules end-to-end. This is a high-agency role where you’ll lead technical decisions, ship fast, and directly impact how billions in capital are allocated globally. Location London, UK Why this role is remarkable You are the first engineering hire, granting you total ownership over the technical roadmap and a direct path to leadership as the team scales.The company is backed by founders who have built and sold eight-figure businesses and is supported by the Investment Association's SPARKS accelerator.You will work with a cutting-edge stack including Next.js 16, React 19, and advanced LLM integrations using Gemini and Azure OpenAI to solve complex data problems. What You Will Do Build and manage a robust multi-tenant infrastructure on Azure, including deployment pipelines, observability, and tenant-specific isolation using PostgreSQL Row-Level Security.Architect and iterate on the core data asset, normalizing disparate global datasets to create predictive signals for fund allocators across Europe and North America.Collaborate directly with design partners at FCA-regulated firms to translate feedback into production-ready modules, shipping changes from development to users within hours. The ideal candidate You have 5+ years of experience shipping production software with significant depth in PostgreSQL, including schema design, performance tuning, and migrations against live data.You possess 3+ years of professional TypeScript experience, using the type system as a design tool to handle complex data boundaries and LLM outputs.You are a high-agency builder who has previously owned products end-to-end in small, fast-paced startup environments and is ready to set the architectural vision. 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.