Jack & Jill
Software Engineer (£80k-£160k + Equity) at Electric Twin
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Software Engineer (Mid / Senior / Staff / Principal)
Salary: £80k-£160k + Equity Location: London, UK
🏢 Company Description
Electric Twin is a $14M seed-stage London startup backed by Atomico and Marc Andreessen, building a behavioral simulation platform. Founded by the UK Prime Minister’s former Chief Data Advisor and a senior military commander, they create "digital twins" of real populations to help organizations test decisions with 95% accuracy in minutes.
⚡ Job Description
Join a high-caliber team of 17 building the future of behavioral simulation. As a Software Engineer at Electric Twin, you will:
- Own complex systems from design to deployment, orchestrating foundation models and data pipelines.
- Tackle real engineering challenges, including system design, reliability, and performance, while shaping a product used by major organizations like The Times.
- Work at the intersection of AI and behavioral science, delivering 10,000x faster results than traditional research methods.
🌟 Why this role is remarkable
✅ Cutting-edge impact – Work at the frontier of AI and behavioral science with a lean, $14M-backed team and world-class investors (Atomico, Marc Andreessen).
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✅ High-impact engineering – Shape systems for population-scale simulations and breakdown bottlenecks in foundation model orchestration.
✅ High-trust, low-ego culture – Operate in SoHo (London) with:
- Meaningful equity opportunities
- 16% total pension matching
- Unlimited leave & genuine work-life balance
🎯 What You Will Do
- Design and build scalable services, data models, and APIs for behavioral simulation workflows using Python, FastAPI, and TypeScript.
- Take full ownership of product capabilities, collaborating with data scientists to translate research into robust, customer-facing features.
- Lead engineering trade-offs between speed and rigor, ensuring systems are reliable, reusable, and trustworthy.
👩💻 The Ideal Candidate
- End-to-end ownership – Strong track record of shipping meaningful products and living with technical trade-offs in a modern stack.
- Judgment under uncertainty – Ability to balance speed vs. polish and iterate based on real customer feedback.
- Stack proficiency or willingness to learn – Familiarity with (or eagerness to master) Python, TypeScript, React, and GCP, with a focus on engineering fundamentals over framework-specific expertise.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
🤝 Who are Jack & Jill?
We’re an AI-driven recruitment system designed to eliminate pretence—no fake jobs, just direct and transparent opportunities.
About Jack
An AI career coach who:
- Quickly gets to know your strengths and career goals.
- Helps you find unmissable job opportunities before they’re posted elsewhere.
- Supports you through applications, interview prep, and moral support.
About Jill
An AI Recruiter who:
- Talks with companies to understand their true hiring needs.
- Recruits directly from Jack’s network for seamless introductions.
- Ensures only the best candidates are considered.
How This Works
- Jill identifies this role and recruits from Jack’s network.
- If there’s a match, the company (Electric Twin) will connect with you directly.
- If not, Jack will sent you excellent alternatives—all for free.
No guesswork. Just direct, valuable opportunities. 🚀
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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