Senior IT Security & Infrastructure Engineer (Temporary)

Vir Biotechnology is a clinical-stage biopharmaceutical company focused on powering the immune system to transform lives by discovering and developing medicines for serious infectious diseases and cancer. Its clinical-stage portfolio includes programs for chronic hepatitis delta and multiple dual-masked T-cell engagers across validated targets in solid tumor indications. Vir Biotechnology also has a preclinical portfolio of programs across a range of infectious diseases and oncologic malignancies. 

We believe the success of our colleagues drives the success of our mission. We are committed to creating a company where everyone feels supported and encouraged to give their best.

Vir Biotechnology is looking for a Senior Infrastructure & Security Engineer (Temporary) to support both IT operations and enterprise security initiatives at our San Francisco HQ. This role is designed for a senior-level professional with hands-on experience in infrastructure management and a strong focus on configuration assessments across SaaS platforms, cloud environments, and on-premise systems. The position reports directly to the Head of Infrastructure and Information Security and contributes to the reliability, security, and compliance of enterprise systems.

This role is located in our San Francisco headquarters with an expectation of 4 days per week in office.

Infrastructure Operations

• Administer and troubleshoot network components including switches, access points, routers, firewalls, and VPNs.
• Manage virtualized environments and backup systems across hybrid infrastructure.
• Support cloud migration efforts and ensure secure deployment patterns across public cloud platforms.
• Collaborate with development and DevOps teams to ensure secure and scalable infrastructure design.

Configuration & Security Assessments

• Perform configuration reviews and hardening assessments across SaaS applications, cloud services, and infrastructure components.
• Identify misconfigurations and gaps in security posture; recommend and implement remediation strategies.
• Maintain and evolve baseline configurations and compliance benchmarks aligned with internal policies and recognized standards.
• Support vulnerability management and incident response efforts with configuration insights and forensic analysis

Security Engineering

• Implement and maintain endpoint protection, identity and access controls, and data loss prevention mechanisms.
• Automate security controls and monitoring using scripting and orchestration tools.
• Assist in audit preparation and documentation of security controls and operational procedures.

• Minimum 7 years of experience in IT infrastructure and security engineering.
• Strong understanding of SaaS, cloud, and on-premise configuration management.
• Proficiency in scripting languages (e.g., Python, PowerShell) and automation frameworks.
• Experience with network architecture, virtualization, and cloud-native services.
• Familiarity with compliance frameworks and security standards (e.g., CIS Benchmarks, NIST, ISO).
• Ability to work independently and manage multiple priorities in a fast-paced environment.
• Excellent communication skills and a collaborative approach to cross-functional work.