Founding Engineer at fast-growing AI data platform

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.

Founding Engineer

Company Description: Fast-growing AI data platform

Job Description:
You will build the critical infrastructure and APIs powering an advanced analysis engine designed to ingest and structure massive volumes of human feedback. Working directly with the CTO, you will define architecture and data models to make complex data actionable, reliable, and auditable for enterprise clients in a fast-paced environment.

Location: London, UK

Why this role is remarkable:

• Shape the technical foundation of a high-impact platform from the ground up as a founding team member

• Join a well-funded startup backed by top-tier VCs and led by experts in mathematics and complex data systems

• Tackle the unique challenge of making unstructured human data trustworthy and reproducible at scale for global enterprises

What you will do:

• Design and scale robust systems that ingest and serve insights from massive datasets of human feedback

• Collaborate with the CTO to define core architecture, data models, and production-ready ML patterns

• Develop and evolve the core stack using Next.js, FastAPI, and AWS to ensure high performance and auditability

The ideal candidate:

• Strong proficiency in Python, ML frameworks, data pipelines, and building scalable production APIs

• Proven ability to transform early-stage prototypes into testable, reproducible modules ready for enterprise-grade production

• Passionate about data transparency and experience working within early-stage startup environments or complex machine learning systems

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.