Senior Rust Systems Engineer — AI Security (Equity, London)

Harmonic Security Inc. in London is seeking a Principal Systems Engineer to lead low-level, security-critical endpoint agent software across Windows, macOS and Linux.

You will design high-performance Rust components that protect data movement with sub-500ms latency. The role offers a high-impact leadership path reporting to the VP of Engineering, shaping the core architecture of the endpoint platform and partnering with security engineers to ensure correctness, performance, and safety in

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