Principal Engineer at Octet at Jack & Jill/External ATS

London, England, United Kingdom -

Full Time

Start Date

Immediate

Expiry Date

07 Jun, 26

Salary

0.0

Posted On

09 Mar, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Architectural Design, Mobile SDK, Low-Latency, Sensor Fusion, On-Device Machine Learning, Programmable Cryptography, Infrastructure, Android Systems Programming, Signal Processing, Cryptography, Zero-Knowledge Proofs, Inertial Sensors, Spatio-Temporal Systems, High-Reliability, ML Models, Proof Pipeline

Industry

Staffing and Recruiting

Description

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. Principal Engineer Company Description: VC-backed deep-tech cryptography startup Job Description: You will lead the architectural design of a high-integrity, low-latency mobile SDK and proof pipeline at the intersection of sensor fusion, on-device machine learning, and programmable cryptography. As a founding technical leader, you will translate strategic vision into global infrastructure that verifies physical presence, ensuring privacy-by-design while building unbreakable systems for commercial deployment. Location: London, UK Why this role is remarkable: Work on a foundational mission to make physical presence cryptographically verifiable, creating a new primitive for digital security Collaborate directly with founders including top-tier academic experts and repeat entrepreneurs backed by world-class venture capital firms Drive high-impact 0→1 engineering in a high-agency environment, moving research breakthroughs from paper to production-ready global systems What you will do: Architect and build the high-integrity SDK and proof pipeline focusing on Android systems and low-level optimization Implement on-device ML models that convert multimodal sensor data into real-time, verified location proofs Lead the integration of zero-knowledge proofs (ZKPs) to achieve privacy-preserving verification without compromising performance The ideal candidate: 5+ years of experience in spatio-temporal systems, inertial sensors, or high-performance on-device ML for mobile environments Proven track record of shipping high-reliability, low-latency mobile SDKs and mastery of Android systems programming Strong background in signal processing or cryptography, with the ability to harden cutting-edge research into resilient software 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.

Responsibilities

The role involves leading the architectural design of a high-integrity, low-latency mobile SDK and proof pipeline, integrating sensor fusion, on-device machine learning, and cryptography. The engineer will translate strategic vision into global infrastructure to verify physical presence while ensuring privacy-by-design.