Founding Engineer, AI Payments — Equity & London

Jack & Jill/External ATS; Greater London; On-site; GBP 100,000 - 125,000; Full time

Job summary

A pioneering VC-backed AI payments startup is seeking a Founding Engineer to build essential payment infrastructure for AI Agents. Join as a key player, owning feature delivery and shaping technical vision in a fast-paced environment. Ideal candidates should have experience with Large Language Models and frameworks like Autogen and LangGraph, along with strong full-stack skills in Python and TypeScript. This role offers substantial equity and the opportunity to influence the engineering culture from the ground up.

Benefits

Significant equity ownership

Fast-paced startup environment

Cutting-edge technology involvement

Qualifications

• Experience in building products utilizing Large Language Models (LLMs).
• Familiarity with frameworks such as Autogen, LangGraph, or similar SDKs.
• Proficiency in both Python and TypeScript, with a full-stack development background.

Responsibilities

• Own end-to-end delivery of product features, from architecture to deployment.
• Shape the technical vision and make foundational decisions about the stack and infrastructure.
• Act as an engineer and product thinker, solving diverse challenges.

Skills

Building products leveraging Large Language Models (LLMs)

Experience with agentic frameworks (e.g., Autogen, LangGraph)

Full-stack experience, proficient in Python

Full-stack experience, proficient in TypeScript

Job description

A pioneering VC-backed AI payments startup is seeking a Founding Engineer to build essential payment infrastructure for AI Agents. Join as a key player, owning feature delivery and shaping technical vision in a fast-paced environment. Ideal candidates should have experience with Large Language Models and frameworks like Autogen and LangGraph, along with strong full-stack skills in Python and TypeScript. This role offers substantial equity and the opportunity to influence the engineering culture from the ground up.