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Jack & Jill

Junior Developer

Hybrid

London, United kingdom

Junior

Full Time

25-02-2026

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Skills

Go GitHub Programming E-commerce

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.

Junior Developer

Company Description: Fast-growing AI startup building e-commerce tools

Job Description:

Join a lean, experienced engineering team building AI-powered tools that streamline e-commerce operations for businesses and charities. As an early-career developer, you will contribute to production features, solve complex technical problems, and improve existing systems. This role focuses on thoughtful engineering and practical solutions rather than following industry hype.

Location: London, UK

Why this role is remarkable:

Work directly alongside senior engineers who prioritize clean, maintainable code and pragmatic technical decisions.
Gain hands-on experience with production-grade AI applications that solve real-world commercial problems for active customers.
Join a small, low-ego team where your individual contributions have a visible impact on the product.

What you will do:

Contribute to the development of new product features and the improvement of existing system architectures.
Write well-structured, maintainable code while learning how production-level software is built and scaled.
Troubleshoot technical challenges and collaborate with the team to find efficient, long-term engineering solutions.

The ideal candidate:

Possesses a solid understanding of programming fundamentals and proficiency in at least one modern language.
Demonstrates a history of self-directed learning through side projects, GitHub activity, or technical tinkering.
Displays strong logical thinking and the ability to communicate technical concepts clearly and effectively.

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