Systems Administrator

Description

We are looking for a Linux Systems Administrator to support a Financial Services organization with critical on-premises infrastructure initiatives in San Francisco, California. This Contract position is designed for someone who is detail oriented and can balance hands-on Linux administration with automation, storage, virtualization, and security work across several priority projects. The engagement is expected to run for approximately 3 months and may continue based on business needs and ongoing infrastructure support demands.

Responsibilities:

Build, configure, and maintain Ubuntu-based Linux servers within an on-premises enterprise environment.

Establish and manage an Ansible framework to streamline infrastructure provisioning, configuration management, and repeatable deployments.

Oversee file server operations and support storage platforms, including configuration, performance tuning, and ongoing administration.

Deliver multiple infrastructure-focused projects covering server implementation, automation improvements, and overall environment optimization.

Apply security standards and strengthen systems through hardening measures, access controls, and risk-reduction practices.

Support the organization's virtualized environment, including administration and upkeep of Proxmox-based systems.

Work with technology leadership to define priorities, while independently driving assigned initiatives through completion.

Troubleshoot infrastructure issues, recommend practical improvements, and help maintain reliable day-to-day system operations.

Requirements

Demonstrated experience administering enterprise Linux environments, with strong knowledge of Ubuntu systems.
Hands-on expertise designing and implementing Ansible for infrastructure automation from the ground up.
Experience managing file servers and storage technologies, including familiarity with ZFS environments.
Working knowledge of virtualization platforms, particularly Proxmox.
Solid understanding of infrastructure security principles, system hardening, and operational best practices.
Ability to manage project-based technical work independently while maintaining clear communication with stakeholders.
Background supporting on-premises infrastructure in a business environment.

Technology Doesn't Change the World, People Do.

Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

Robert Half will consider qualified applicants with criminal histories in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice.