Staff Software Security Engineer

Company: Humanloop
Apply for the Staff Software Security Engineer
Location: London
Job Description:

Overview

In this role you will fortify Anthropic’s security for large-scale AI clusters, partnering with research, product, and security teams. You will design secure-by-design workflows and CI/CD pipelines, and implement robust cloud security across multi-cloud environments. You will apply threat modeling to complex systems, operate secure services with IaC and GitOps, and mentor engineers to raise the security bar. This position offers impact before-scale security work aligned with our mission to build safe, interpretable AI. Join a collaborative team dedicated to trustworthy AI and security excellence.

Pay / Benefits

  • generous vacation and parental leave
  • flexible working hours
  • equity donation matching (optional)
  • office space in San Francisco
  • competitive compensation
  • visa sponsorship available

Responsibilities

  • Build security for large-scale AI clusters with robust cloud architecture (IAM, network segmentation, encryption)
  • Design secure-by-design workflows and secure CI/CD pipelines across services
  • Operate secure, high-reliability services using Infrastructure-as-Code and GitOps
  • Perform threat modeling and risk assessment for multi-cloud environments
  • Mentor engineers and contribute to the growth of the Security team

Key requirements

  • 5-15+ years of software engineering experience with critical systems at scale
  • Bachelor’s degree in Computer Science/Software Engineering or equivalent
  • Strong programming skills in Python or systems languages (Go, Rust, C/C++)
  • Experience managing infrastructure at scale with DevOps and cloud automation
  • Proven ability to lead cross-functional security initiatives
  • Outstanding communication skills; ability to convey complex concepts across organizational levels
  • Strong systems thinking; ability to mitigate risks in complex environments
  • Low ego, high empathy engineer; experience supporting fast-paced startup teams
  • Passion for AI safety and alignment, and interest in interpretability and human-centric AI
  • strong communication
  • mentorship
  • cross-functional collaboration
  • cloud environments (multi-cloud)
  • Kubernetes security and container orchestration
  • identity management

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Posted: September 14th, 2026