Jack & Jill
Full Stack Engineer at Peace
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Job Title
Full Stack Engineer
Salary
Not Disclosed
Company Description
Peace is a LocalGlobe-backed startup building an AI-powered physical play platform that turns homes and neighborhoods into immersive story worlds for children. Led by a successful exited entrepreneur, the team includes talent from Star Wars, Marvel, and Apple, all dedicated to replacing screens with physical, creative adventures.
Job Description
Join Peace as a geographically standalone engineer in London to build the software layer for our AI-powered physical play platform. You will work across MCU firmware, a Rust backend, and AI pipelines to create screenless "magic buds." This role is critical for transforming homes into immersive story worlds for the next generation.
Location
London, UK
Why this role is remarkable
- Build a category-defining physical product that combines MCU firmware, Rust backends, and cutting-edge LLM orchestration to get children off screens and into real-world play adventures.
- Join an elite, high-pedigree team featuring talent from Marvel, Star Wars, and Apple, backed by top-tier investors including LocalGlobe and the founders of Calm and Twitch.
- Influence both technical and creative direction in a 0-1 environment where your code will be tested by real users in playtests within weeks of your start date.
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What You Will Do
- Ship end-to-end features across the entire stack, from MCU device firmware and Rust backends to the mobile app and internal creative authoring tools.
- Architect and optimize the live AI session pipeline, integrating speech-to-text, LLM orchestration, and real-time audio using tools like Deepgram, ElevenLabs, and Pipecat for instantaneous interaction.
- Connect software to the physical world by managing sensor data from IMUs and proximity sensors to ensure reliable device state and high-fidelity audio playback.
The ideal candidate
- Several years of experience shipping production software with fluency in Rust, Python, and TypeScript, spanning backend APIs, data models, and internal frontend tools.
- Proven ability to navigate the full hardware-software stack, tracing and fixing bugs that live anywhere from device firmware to the high-level model orchestration layer.
- Scrappy, autonomous problem-solver with production-grade instincts for reliability and a deep interest in making child safety a core technical foundation of the product.
Who are Jack & Jill?
- 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.
- 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.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
How does this work?
- Jack: An AI agent for job searching and career coaching. He works for you.
- Jill: The AI recruiter working for the company. She recruits from Jack's network.
- If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
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.
“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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