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Jack & Jill

Software Engineer

Hybrid

London, United kingdom

Full Time

22-01-2026

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Skills

Creativity JavaScript Go TypeScript Mathematics

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.

Software Engineer

Company Description: Fast-growing 3D creator platform building advanced tools that enable creators to design and share high-quality 3D assets globally.

Job Description:

You will be at the forefront of digital creativity, building advanced tools that empower creators to design and share 3D assets. This role involves solving complex technical challenges at the intersection of web technology and interactive graphics, ensuring a seamless user experience for a global community of innovative digital designers.

Location: London, UK

Why this role is remarkable:

Work at the cutting edge of web-based 3D technology and interactive digital design tools
Join a well-funded startup backed by top-tier VCs during rapid international growth
Shape the future of how digital assets are created and consumed across the modern web

What you will do:

Develop and optimise high-performance 3D rendering features using modern web technologies
Collaborate with product and design teams to implement intuitive creator-focused interfaces
Maintain and improve the core engine to ensure stability across diverse browser environments

The ideal candidate:

Proven professional experience building complex applications with Three.js and WebGL
Strong proficiency in modern JavaScript or TypeScript in production environments
Deep understanding of 3D mathematics, shaders, and browser-based graphics optimisation

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