Lead Platform Security Engineer – Equity (London)

Company: Jack & Jill
Apply for the Lead Platform Security Engineer – Equity (London)
Location: London
Job Description:

Harmonic Security Inc. in London, UK is seeking a Senior Software Security Engineer to own the platform security architecture and write production code to harden core systems.

You will establish standards for authentication, encryption, and multi-tenant isolation, and contribute hands-on development in Java, Terraform, and Python. This role is built for security-focused builders who prefer architecture over auditing.

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Posted: September 14th, 2026