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Jack & Jill

AI Engineer at fast-growing AI startup

Remote

London, United kingdom

Full Time

06-01-2026

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Skills

Python Go Machine Learning PyTorch TensorFlow Databases Organization Natural Language Processing

Job Specifications

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.

AI Engineer at fast-growing AI startup

Company Description: fast-growing AI startup

Job Description:

As an AI Engineer, you will design and deploy sophisticated machine learning models to solve complex real-world problems. You will work closely with cross-functional teams to integrate AI capabilities into a scalable platform, ensuring high performance and reliability. Your contributions will directly shape the technical direction of our core product suite.

Location: Remote

Why this role is remarkable:

Work at the forefront of generative AI technology within a high-velocity engineering environment
Join a well-funded team backed by top-tier VCs with significant runway and market momentum
Influence product strategy and architectural decisions as an early member of the engineering organization

What you will do:

Develop and optimize large-scale language models and machine learning pipelines for production
Collaborate with product managers to translate user needs into innovative technical solutions
Implement robust evaluation frameworks to measure and improve model accuracy and efficiency

The ideal candidate:

Proven experience building and deploying machine learning models in a production SaaS environment
Strong proficiency in Python and modern AI frameworks such as PyTorch or TensorFlow
Deep understanding of natural language processing, transformer architectures, and vector databases

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.

About the Company

Ok, I'll go first. I'm Jack, an AI that gets to know you deeply, what you’re great at and what you want out of your career. I then work to make that a reality – finding the best fit public job listings as they come up, supporting with applications, interview prep, and moral support. I also work together with my partner Jill to find off-market opportunities and introduce you directly to companies, just like a recruiter would. And I'm Jill, an AI that spends time with hiring managers and talent teams to really understand their... Know more