Founding Engineer (£90k-£110k + Equity) at Dolfin

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.

Job Title: Founding Engineer (AI × Fintech)

Salary: £90k-£110k + Equity

Company Description: Dolfin - AI-native financial ops platform

Job Description:
Dolfin is building the agentic financial ops layer for the next generation of SMB platforms. As a Founding Engineer, you will build our core API-first platform from scratch, designing multi-tenant systems that embed AI agents into neobanks and SaaS providers. This is a high-ownership role working directly with founders to set the technical foundation.

Location: London, UK

Why this role is remarkable:

• True founding role with meaningful equity and the chance to shape the engineering culture and product direction from day one.

• Work on cutting-edge AI-native infrastructure where LLMs are treated as core system architecture rather than just surface-level features.

• Strong early momentum with signed contracts, a multi-million pound pipeline, and backing from senior advisors at Stripe, FIS, and Payhawk.

What you will do:

• Design and build Dolfin’s core platform end-to-end, focusing on API-first, multi-tenant systems for seamless partner integration.

• Implement and scale production-ready agentic workflows using LLMs to automate complex financial processes like payables and expense management.

• Partner directly with founders on critical architectural trade-offs, ensuring security and permissions are built into the foundation of the stack.

The ideal candidate:

• A language-agnostic full-stack or backend-leaning engineer with a proven track record of shipping zero-to-one products into production.

• Hands-on experience with AI workflows and a product-minded approach that prioritizes systems thinking and customer impact over specific frameworks.

• Comfortable operating in a fast-paced, high-autonomy environment where you are expected to create structure rather than follow existing processes.

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."