Founding Software Engineer (£70k-£100k + Equity) at VC-backed deep-tech startup

  • Jack & Jill/External ATS
  • 04/02/2026
Full time Information Technology Telecommunications

Job Description

Overview

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.

Position

Founding Software Engineer (Product & 3D Visualisation)

Salary: £70k-£100k + Equity

Location: London, UK

Company Description: VC-backed deep-tech startup

Job Description

Join a high-growth startup developing advanced AI to address global resource challenges. As a founding engineer, you will build the first production-ready SaaS platform from the ground up, integrating sophisticated ML models with interactive 3D visualizations. Your work will directly empower industrial clients to make faster, data-driven decisions while halving exploration costs and accelerating critical projects.

Why this role is remarkable
  • You will be a founding engineer shaping the technical architecture and product vision of a high-impact platform from day one.
  • Work alongside a multidisciplinary team of specialists at a well-funded venture-backed startup solving massive real-world engineering challenges.
  • Take ownership of a greenfield project where your software directly influences high-stakes decisions in the global energy transition.
What you will do
  • Design and build a scalable SaaS platform that transforms complex data into high-performance 3D front-end visualisations.
  • Develop robust backend services in Python that interface with advanced machine learning pipelines and large-scale data processing workflows.
  • Lead the transition from early MVP to multi-client deployment by managing cloud infrastructure and establishing production-grade reliability standards.
The ideal candidate
  • Proven experience building and scaling full-stack SaaS products with a strong focus on Python-based backend architecture.
  • Demonstrated ability to deploy and operate cloud-hosted applications while managing complex, high-volume data workflows.
  • A proactive problem-solver with a background in 3D, scientific, or geospatial visualization who thrives in fast-paced, multidisciplinary environments.
About 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
  1. Step 1. Visit our website.
  2. Step 2. Click "Talk to Jack".
  3. Step 3. Talk to Jack so he can understand your experience and ambitions.
  4. Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
  5. Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
  6. 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.