Product Engineer at VC-backed fintech infrastructure startup
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.
Product Engineer
Company Description: VC-backed fintech infrastructure startup
Job Description:
You will join a high-performance team building core payments infrastructure and data security primitives. This role involves owning the entire product lifecycle from customer discovery to shipping production-grade APIs. You will work across the stack to develop solutions for tokenization, network integrations, and 3D Secure for major global merchants.
Location: London, UK
Why this role is remarkable:
Work on mission-critical infrastructure where security and precision are paramount for global transaction volume.
Backed by top-tier VCs with a lean team of approximately 25 people, ensuring high impact and ownership.
Opportunity to shape the product roadmap and technical culture of a rapidly scaling developer-first company.
What you will do:
Design and build developer-facing APIs and full-stack primitives for card data security and payments.
Collaborate directly with customers to understand their payment stacks and debug complex technical integrations.
Own features end-to-end, contributing to everything from backend services and SDKs to technical documentation.
The ideal candidate:
Deeply technical with strong fundamentals in systems, networks, and distributed infrastructure beyond just frameworks.
Product-minded engineer with "founder energy" who prioritizes developer experience and impact over simple output.
Excellent communicator with a high bar for quality in code, API design, and visual documentation.
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.
Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.
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.