Role overview

Principal Security Engineer

Requirements and responsibilities

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About the Job

  • Support the enterprise agentic AI platform, defining and governing how every agent at LS&Co. is built, deployed, and governed, regardless of cloud provider, model, or builder team.
  • Architect and engineer a production-grade multi-agent AI platform to orchestrate specialized security agents across the GIS.
  • Lead the design and implementation of the AI Gateway as the central enforcement point for all LLM and agent traffic.
  • Architect the agent identity and registry system to eliminate shadow AI and orphaned agents across the estate.
  • Establish the audit and observability architecture for agent workloads.
  • Own cross-platform guardrails and data protection standards.
  • Build AI-powered enrichment and analysis pipelines integrated with our security stack.
  • Define engineering standards, design review processes, and architectural patterns for the AI & Security Engineering practice.
  • Establish organizational accountability structures for platform component ownership, partnering with Platform Engineering, Infrastructure, and Security to define clear ownership boundaries, contribution standards, and governance operating models that scale beyond a single team.

About You

  • 10+ years of professional software engineering experience with expert proficiency in Python; demonstrated track record designing and delivering complex, distributed, cloud-native systems at scale.
  • Hands-on experience building and shipping agentic AI applications beyond proof-of-concept
  • Practical proficiency with AI orchestration frameworks (Semantic Kernel, LangChain, ADK, etc.) and RAG pipeline design, including embedding strategies, hybrid search, and LLM evaluation methodology.
  • Solid grasp of security operations concepts: threat intelligence workflows, detection engineering and SIEM query languages (KQL, SPL, YARA-L, etc.), MITRE ATT&CK, vulnerability management, and API-based integration with security platforms.
  • Strong architecture and leadership instincts: you write RFCs, lead design reviews, make well-reasoned build-vs-buy decisions, and can communicate technical complexity to both engineering peers and executive audiences.
  • Operates effectively as a principal-level individual contributor who is comfortable driving technical alignment without direct organizational authority.
  • Genuine, demonstrable passion for AI and agentic systems; not just aware of the landscape, but actively experimenting, building, and thinking about what AI can and cannot reliably do today.
  • Experience with infrastructure-as-code and CI/CD in regulated or high-assurance environments; familiarity with cloud security best practices including managed identity, Key Vault, and least-privilege design.
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Browse stack
FocusPrincipal Security EngineerRole area
Seniority signalSeniorCandidate level
StackCI/CD, LLM, PythonPrimary skills
Location1 accepted countryEligibility

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