Founding Engineer / CTO (£140k + Equity) at AgentBay

Founding Engineer / CTO (£140k + Equity) at AgentBay

Full-Time 140000 - 140000 £ / year (est.) No working from home possible
J

At a Glance

  • Tasks: Build a groundbreaking risk engine and design user experiences for agentic commerce.
  • Company: Join AgentBay, a London startup founded by alumni from Stripe, Plaid, and Amazon.
  • Benefits: Competitive salary of £140k plus equity and the chance to shape the future.
  • Other info: Dynamic startup culture with opportunities for significant career growth.
  • Why this job: Be a founding team member and redefine AI and fintech with elite founders.
  • Qualifications: Senior engineer with experience in complex software and a passion for innovation.

The predicted salary is between 140000 - 140000 £ per year.

  • Job Title
  • Founding Engineer / CTO
  • Salary
  • £140k + Equity
  • Company Description

Agent Bay is a London-based startup building the trust layer for agentic commerce.

Founded by alumni from Stripe, Plaid, and Amazon, they are developing a first-of-its-kind risk engine and payment infrastructure to protect consumers and merchants as AI agents begin to handle autonomous transactions and financial decisions.

Job Description

As the Founding Engineer/CTO at Agent Bay, you will build the technical foundation for autonomous agentic commerce.

You’ll develop a novel risk engine quantifying "alignment risk" using ML and LLMs, integrate complex payment flows, and design end-user UX.

This is a hands-on role defining a new category alongside seasoned fintech and big-tech founders.

  • Location
  • London, UK
  • Why this role is remarkable
  • Join as a founding team member with a direct line to strategy and the chance to define a brand-new category in the AI and fintech space.
  • Work alongside founders with elite pedigrees from Amazon, Google Pay, Stripe, and Plaid who have scaled massive systems and launched successful products.
  • Solve "alignment risk," one of the most critical hurdles for the future of agent-led commerce, building infrastructure that doesn't exist anywhere else today.

What You Will Do

  • Architect and build a first-of-its-kind risk engine from scratch using a blend of traditional supervised learning and LLM-as-a-judge methodologies.
  • Develop and embed secure risk harnesses within agentic commerce protocols and payment flows, partnering with ecosystem players to integrate bleeding-edge technology.
  • Lead the end-to-end product engineering cycle, from backend machine learning models and payment orchestration to crafting high-craftsmanship, "calm tech" user experiences.
  • The ideal candidate
  • A senior-level engineer who has shipped complex production software end-to-end, ideally with experience taking a product from 0-to-1 in a fast-paced environment.
  • Deep technical expertise in either machine learning infrastructure or payment systems, with the architectural maturity to make sharp decisions under conditions of high uncertainty.
  • A high-agency, low-ego builder who values product velocity and craftsmanship, possesses the UK right to work, and enjoys a high-energy, collaborative startup culture.
  • #J-18808-Ljbffr

Founding Engineer / CTO (£140k + Equity) at AgentBay employer: Jack & Jill

At Jack & Jill, we pride ourselves on being an exceptional employer that fosters a dynamic and innovative work culture. Our team enjoys a range of benefits including flexible working arrangements, professional development opportunities, and a collaborative environment that encourages creativity and growth. Located in a vibrant area, we offer unique advantages such as access to cutting-edge technology and the chance to work with industry leaders in AI-driven marketing strategies.

J

Contact Details:

Jack & Jill Recruitment Team

We think you need these skills to ace Founding Engineer / CTO (£140k + Equity) at AgentBay

Machine Learning
Large Language Models (LLMs)
Risk Engine Development
Payment Systems Integration
User Experience Design
Product Engineering
Backend Development