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 Job Title: Senior Full-Stack Engineer SYSTM - VC-backed fintech building the stablecoin financial OS As the most critical hire of 2026, you will own the technical architecture of a platform revolutionizing cross-border finance. Working directly with a founder from Plutus, you will build the infrastructure for stablecoin payments and an AI-powered Agentic CFO layer, transitioning the product from early design partners to global scale. You will be the primary technical leader, making all build-vs-buy decisions and shaping the engineering culture from the ground floor as the company closes its funding round. Direct exposure to the cutting edge of finance, integrating Stellar and USDC with autonomous AI agents to automate treasury management for 25+ signed design partners. Architect and build multi-currency wallets, stablecoin on/off ramps, and yield optimization infrastructure using Stellar and USDC rails. Develop the Agentic CFO layer, implementing LLM-powered financial intelligence with autonomous action capabilities and observable AI pipelines. Lead the development of a high-performance React/TypeScript merchant dashboard and robust Node.js/Python backend services that meet high compliance standards. 5+ years of full-stack experience with React/TypeScript and Node.js or Python, demonstrating high senior-level ownership of complex product architectures. ~ Proven track record shipping production-grade AI/LLM features, including agentic workflows, RAG pipelines, or prompt engineering at scale. ~ Entrepreneurial background as an early engineer or CTO, ideally with domain expertise in fintech, payments, or blockchain infrastructure like Stellar. 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. Visit our website . Jack will make sure Jill (the AI agent working for the company) considers you for this role. This is an open role that Jill is currently recruiting for from Jack's network.
Senior Full Stack Developer Technical Lead in London employer: The Jack Company Bv
Midnite is an exceptional employer, offering a unique opportunity to lead a greenfield team in building an innovative internal back-office platform. With a strong focus on AI experimentation and a commitment to employee growth, you will enjoy a collaborative work culture that values autonomy and creativity, all while being part of a well-funded Series C startup backed by prestigious investors. The remote UK location allows for flexibility, making it an attractive choice for those seeking meaningful and rewarding employment in a dynamic environment.
