Software Engineering Manager, Network Security

Anthropic's mission is to create reliable, interpretable, and steerable AI systems. The team is a quickly growing group of researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. Anthropic is a public benefit corporation headquartered in San Francisco.

The Network Security team secures Anthropic's networks across cloud providers and bare-metal AI data centers, owning egress and ingress controls, network segmentation, private connectivity between environments, and encryption in transit. The team designs, builds, and maintains these controls and writes the software that deploys, enforces, and monitors them, protecting model weights, customer data, and internal assets.

Anthropic is hiring an Engineering Manager to lead this team as it grows with new data center sites and cloud regions. The manager will set the team's charter, practices, and priorities, and partner with infrastructure networking, cluster, and data center teams so security is built into network designs from the start, aiming for secure-by-default networking that lets research and product teams use compute in any environment without slowing them down.

• Own the network security roadmap: threat model from the management plane through Kubernetes and cloud interconnects, decide what to build, and deliver it.
• Reason about the design and implementation of default-deny ingress and egress, segmentation between research, training, and production, private connectivity, and mTLS/service identity across every environment.
• Ship these as secure-by-default primitives so new clusters, VPCs, and data center links inherit the right boundaries without security on the critical path.
• Join networking, cluster, and data center teams at design time so topology, routing, and firewall decisions carry the team's invariants from day one.
• Build visibility into traffic and boundary drift, with detection for exfiltration paths and automated remediation where safe.
• Own the network security evidence for security goals and compliance: the invariants hold, and you can prove it.
• Hire, grow, and retain senior security software engineers; own their career development and set the practices the team runs on as it scales.

• 8+ years of front line management experience.
• Low ego, high empathy; has built diverse teams and has former reports who would work for them again.
• Experience managing infrastructure or security engineering teams, including hiring, developing, and managing senior and staff engineers.
• Has grown engineers into staff or lead roles, and has made the call to move someone out when coaching didn't work.
• Kept a team intact and delivering through reorgs, charter changes, or leadership turnover.
• Experience owning a security or infrastructure domain end to end: setting multi-year strategy, delivering year-long cross-organizational work with little direction, and answering to executives for its risk and tradeoffs.
• Scaled a team and its systems together through hypergrowth.
• Hands-on network security engineering in cloud and/or on-prem environments: VPC design, interconnects, private service connectivity, cloud firewall policy, egress control, physical segmentation, and out-of-band/management-plane security.
• Threat modeling and risk assessment for networked systems, with the judgment to tell which controls reduce risk.
• Secured Kubernetes networking at scale, or worked in high-assurance environments where controls had to be evidenced, not just deployed.

• Built or rebuilt a hiring loop and held the bar while adding headcount quickly.
• Exposure to large-scale distributed training and what it demands of a network.
• Solved end-to-end networking problems directly with internal users, cloud account teams, and hardware or colo vendors.
• Has taken infrastructure from zero to one and then to maturity.
• Pragmatic and steady; clear and persuasive communicator in writing and in person.
• Familiar with AI security and safety concepts.

Annual Salary: $405,000—$485,000 USD.

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. Location-based hybrid policy: all staff are expected to be in one of Anthropic's offices at least 25% of the time. Visa sponsorship is offered.

Apply via the Greenhouse posting. Anthropic recruiters only contact candidates from @anthropic.com email addresses; legitimate recruiters will never ask for money, fees, or banking information before the first day.