Principal Systems Engineer — AI Security in Rust (Cross-Platform)

Company: Jack & Jill
Apply for the Principal Systems Engineer — AI Security in Rust (Cross-Platform)
Location: London
Job Description:

Jack & Jill is seeking a Principal Systems Engineer to lead the development of security-critical endpoint software at their London office. You will design components that monitor and protect data movement across multiple operating systems.

The role involves high-performance Rust programming, working closely with other engineers on foundational systems and policy enforcement. The ideal candidate will have extensive experience in Rust or C++, a strong focus on security, and an innovative mindset.

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Posted: July 7th, 2026