Senior Systems Engineer — Rust & AI Security, Equity

Company: Jack & Jill
Apply for the Senior Systems Engineer — Rust & AI Security, Equity
Location: London
Job Description:

Jack & Jill, a fast-growing cybersecurity startup in London, seeks a Systems Engineer to design and optimize security agent components in Rust. This role offers total ownership over core architecture and the opportunity to work in a high-traction team focusing on AI governance.

With a competitive salary of £150k–£195k + equity, ideal candidates will have extensive experience in Rust or C++, particularly in security-critical software development. Join us to build groundbreaking solutions at the intersection of AI and cybersecurity.

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Posted: June 11th, 2026