Staff Software Security Engineer at Anthropic
May no longer be active — verify on the employer site
At a glance
- Company
- Anthropic
- Location
- United Kingdom
- Work arrangement
- On-site
- Employment type
- Full-time
- Experience
- 10+ years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
- Added to The Stack
✨ The Stack take on this Anthropic job
- 🏢 Anthropic has 53 jobs here, 36 with visa sponsorship see all
- 🛂 Skilled Worker visa. Standard minimum salary: £41,700 a year guide
- 💡 No salary shown. Ask Anthropic if it is above the minimum.
Updated 2026-11-03, from our data and official sources.
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About the role
Responsibilities:
- Design and build security controls for large-scale AI clusters across cloud and bare-metal (IAM, network segmentation, encryption, mTLS).
- Define and implement default-deny networking, cloud firewall policies, private connectivity and secure service identity practices.
- Ship security controls as infrastructure-as-code and GitOps flows so new clusters inherit secure defaults.
- Build telemetry, detection and automated remediation for network boundary drift and exfiltration paths.
- Secure CI/CD pipelines, Kubernetes clusters and container runtimes; embed secure-by-design practices across development workflows.
- Threat model complex multi-cloud topologies, review designs at architecture time, mentor engineers and contribute to hiring and team growth.
Requirements:
- 8–15+ years of engineering experience building and operating critical, large-scale systems.
- Strong software engineering skills in Python or a systems language (Go, Rust, C/C++).
- Hands-on experience with cloud networking, VPC design, firewall policy, egress controls and private interconnects.
- Deep knowledge of Kubernetes security, network policy, service identity and container hardening.
- Experience with infrastructure-as-code/GitOps and automating secure deployments at scale.
- Proven ability to threat model multi-cloud systems, communicate risk clearly, and coach engineers on secure design.
Responsibilities
The role involves building and maintaining security infrastructure for large-scale AI clusters, including network segmentation, IAM, and encryption controls. You will also design secure-by-design development workflows and mentor engineering teams to ensure high security standards across the organization.
Requirements
Candidates must have 8-15+ years of software engineering experience with strong proficiency in Python or systems languages like Go, Rust, or C++. Expertise in cloud network security, Kubernetes, and threat modeling for complex distributed environments is required.
Key skills
- Software security — in 3 other listings on The Stack
- Python — in 1173 other listings on The Stack
- Go — in 226 other listings on The Stack
- Rust — in 82 other listings on The Stack
- C++ — in 127 other listings on The Stack
- Kubernetes — in 569 other listings on The Stack
- Cloud security — in 70 other listings on The Stack
- Network security — in 9 other listings on The Stack
- Infrastructure as code
- GitOps
- Threat modeling
- IAM
- Container orchestration
- CI/CD
- Mentorship
On The Stack (as of 2026-11-03)
Frequently asked questions about Anthropic
Is this Staff Software Security Engineer role still open?
It was posted on 2026-09-03. Listings more than 30 days old may no longer be active, so check Anthropic's site before applying.
Does Anthropic offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Anthropic's site.
Where is this role located?
The listing gives the location as United Kingdom. It is marked on-site.
What skills does this role ask for?
The listing names: Software security, Python, Go, Rust, C++, Kubernetes, Cloud security, Network security, Infrastructure as code, GitOps, Threat modeling, IAM, Container orchestration, CI/CD, Mentorship.