Senior Software Security Engineer
AnthropicLondon, UKPosted 7 April 2026
Job Description
About Anthropic
Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.
About the role
The Security Engineering team's mission is to safeguard our AI systems and maintain the trust of our users and society at large. Whether we're developing critical security infrastructure, building secure development practices, or partnering with our research and product teams, we are committed to operating as a world-class security organization and keeping the safety and trust of our users at the forefront of everything we do.
Responsibilities:
Build security for large-scale AI clusters, implementing robust cloud security architecture including IAM, network segmentation, and encryption controls
Design secure-by-design workflows, secure CI/CD pipelines across our services, help build secure cloud infrastructure, with expertise in various cloud environments, Kubernetes security, container orchestration and identity management
Ship and operate secure, high-reliability services using Infrastructure-as-Code (IaC) practices and GitOps workflows
Apply deep expertise in threat modeling and risk assessment to secure complex multi cloud environments
Mentor engineers and contribute to hiring and growth of the Security team
You may be a good fit if you:
5-15+ years of software engineering experience implementing and maintaining critical systems at scale
Bachelor's degree in Computer Science/Software Engineering or equivalent industry experience
Strong software engineering skills in Python or at least one systems language (Go, Rust, C/C++)
Experience managing infrastructure at scale with DevOps and cloud automation best practices
Track record of driving engineering excellence through high standards, constructive code reviews, and mentorship
Proven ability to lead cross-functional security initiatives and navigate complex organizational dynamics
Outstanding communication skills, translating technical concepts effectively across all organizational levels
Demonstrated success in bringing clarity and ownership to ambiguous technical problems
Strong systems thinking with ability to identify and mitigate risks in complex environments
Low ego, high empathy engineer who attracts talent and supports diverse, inclusive teams
Experience supporting fast-paced startup engineering teams
Passionate about AI safety and alignment, with keen interest in making AI systems more interpretable and aligned with human values
Strong candidates may also have experience with:
Designing and hardening CI/CD pipelines against supply chain attacks through isolated environments, signed attestations, dependency verification, and automated policy enforcement
Building secure development workflows through hardened remote environments
Implementing network segmentation and access controls in cloud environments
Managing infrastructure through automated configuration and policy enforcement
Hardening containerized applications and enforcing security policies
The annual compensation range for this role is listed below.
For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role.
Annual Salary:
£240,000
£325,000 GBP
Logistics
Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience
Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience
Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position
Location-based hybrid policy: Currently, we expect all staff to be in one ... (truncated, view full listing at source)
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