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Principal Software Engineer – Policy Platform

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: Doist
Full Time position
Listed on 2026-07-14
Job specializations:
  • Software Development
    Software Architect
Job Description & How to Apply Below

Menlo Security is seeking a Principal Software Engineer I for the R&D Policy Team. This role owns the full lifecycle of policy platform services—from storage and versioning to distribution and real-time enforcement—for enterprise customers, with low latency and high availability.

You will lead architectural decisions, mentor engineers, and champion AI-assisted development practices (LLM-based coding, automated test generation) while partnering with Product, Security, and Operations to align on

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