Senior Software Engineer - Security

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Harmonic SecurityCybersecurity and AI
London, England - Hybrid or United Kingdom 100% RemoteFull-TimeSenior
Salary not disclosed
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Job Details

Experience
6+ years of hands-on software engineering experience
Required Skills
KubernetesOAuthSaaS

Requirements

  • 6+ years of hands-on software engineering experience with deep specialization in security architecture.
  • Proven track record designing and implementing platform-level security controls including OAuth, OIDC, SAML, encryption, and secrets management.
  • Strong grounding in threat modeling and secure-by-design principles.
  • Ability to set technical standards and communicate effectively to influence others.
  • Experience with cloud security fundamentals including IAM, network security, containers, and Kubernetes.
  • Track record of shipping secure, reliable, production-grade code.
  • Experience working in a SaaS company facing enterprise scrutiny (SOC 2, ISO 27001) is preferred.

Responsibilities

  • Take formal ownership of Harmonic's platform security architecture covering authentication, authorization, secrets management, encryption, and multi-tenant isolation.
  • Write production code that directly hardens and extends these patterns in the core platform.
  • Set and enforce security engineering standards for the wider engineering team.
  • Manage an independent backlog of platform security improvements.
  • Run threat modeling and architecture reviews on major new systems and integrations before deployment.
  • Partner with engineering leads to embed security patterns during the design phase.
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