As a Founding Engineer at Ralio.co, you will build the foundational infrastructure enabling AI agents to execute secure financial transactions. You’ll design programmable spending limits, intent verification systems, and fraud checks. This high-impact role involves shaping the technical vision from scratch, moving from initial architecture to full-scale deployment in a fast-paced environment.
Founding Engineer at Ralio
Are you ready to build the financial engine for the AI revolution? Ralio.co is hiring a Founding Engineer in London to build the connectivity layer that enables AI agents to facilitate secure payments across cards and stablecoins. As a core member of this early-stage venture, you'll design programmable spending limits and intent verification systems from scratch. If you have a background in fintech infrastructure and a passion for LLMs, this is your chance to own a massive piece of a high-impact product with meaningful equity. Join us and shape how autonomous agents interact with the global economy.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Ralio
Role overview
Software
Ralio provides the connectivity layer for AI Agents, enabling them to facilitate payments using cards, account payments, and stablecoins. The platform emphasizes security and programmability, offering trusted payment guardrails such as programmable spending limits, intent verification, human-in-the-loop confirmations, and advanced fraud checks[9]. Ralio Ltd is a newly incorporated private limited company based in London, UK, focusing on business support services in the payments technology sector for AI-driven automation[1][5][9].
What you will do
- Own the end-to-end delivery of core product features, spanning architecture, secure APIs, and frontend interfaces using Next.js and Supabase.
- Architect and implement sophisticated payment controls, including programmable spending limits, human-in-the-loop confirmations, and automated fraud prevention systems.
- Collaborate directly with the founders to translate high-level product goals into scalable technical implementations across Python and TypeScript environments.
Who this is a fit for
- Proven experience building secure payment or fintech infrastructure, with a deep understanding of compliance standards like PCI-DSS, KYC, and AML.
- Hands-on expertise with Large Language Models (LLMs) and agentic frameworks such as Autogen, LangGraph, or the OpenAI Agents SDK.
- A versatile builder who thrives in 0-to-1 environments, capable of navigating ambiguity and making foundational decisions about infrastructure and scalability.
Why this role is remarkable
- Shape the future of “AI Commerce” by building the essential financial guardrails and connectivity layer that allows autonomous agents to move money securely.
- Join as a founding member with significant equity and the ability to define the technical roadmap, culture, and architecture from day zero.
- Work at the cutting edge of fintech and AI, integrating agentic frameworks like LangGraph and OpenAI Agents SDK with robust payment rails.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
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 your profile’s a match and Ralio wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.