9 Results for Systems Administrator Jobs in San Francisco, CA

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Systems Administrator

Menlo Park, CA
onsite
Temporary / Contract
38 - 44 USD / Hourly
We are looking for a Systems Administrator to support and strengthen enterprise infrastructure for an investment management organization in Menlo Park, California. This Long-term Contract position focuses on maintaining secure, reliable systems across identity, endpoint, network, and Microsoft environments. The ideal candidate brings a hands-on approach to administration and security, along with the ability to independently lead infrastructure initiatives in a regulated setting. Responsibilities: • Manage day-to-day administration of directory services, including Microsoft Active Directory and Entra ID, to support secure access and identity management. • Oversee Microsoft 365, Windows Server, and Windows 10 environments to maintain system stability, user productivity, and consistent operational performance. • Implement and support data protection controls using Microsoft Purview or a similar platform to help safeguard sensitive business information. • Monitor, maintain, and optimize security technologies such as CrowdStrike, Darktrace, or related tools to strengthen threat detection and response capabilities. • Administer Fortinet networking equipment, including firewalls, switches, VPN connectivity, and VLAN configurations, to ensure secure and reliable network operations. • Lead infrastructure and security-focused projects, taking ownership from planning through execution while aligning work with business and compliance needs. • Support audit readiness by preparing technical evidence, maintaining documentation, and assisting with control validation in a regulated environment. • Troubleshoot system, endpoint, and access issues across core infrastructure platforms and coordinate timely resolution to minimize business disruption.
2026-09-21T00:00:00Z

Systems Administrator

San Francisco, CA
remote
Temporary / Contract
60 - 65 USD / Hourly
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.
2026-09-28T00:00:00Z

Systems Engineer

Martinez, CA
onsite
Temporary / Contract
60 - 70 USD / Hourly
We are looking for a Sr. Systems Engineer to support and enhance a Microsoft-focused cloud environment in Martinez, California. This Long-term Systems Engineer Contract position will play a key role in strengthening Microsoft 365 services, device management, identity administration, and cloud-based automation across the organization. The ideal Systems Engineer candidate brings strong technical depth across Azure, Intune, Entra ID, and the Power Platform, along with the ability to resolve complex issues and guide broader IT efforts. This Systems Engineer role is an onsite role out of Martinez, Ca. Responsibilities:• Oversee the performance, security, and day-to-day administration of Microsoft 365 applications, including Exchange Online, SharePoint Online, Teams, and OneDrive.• Create and refine Intune configurations for endpoint management, compliance enforcement, and software deployment across supported devices.• Administer identity and access controls within Entra ID, including authentication methods, privileged access workflows, conditional access, and hybrid identity support.• Support the design, maintenance, and troubleshooting of Azure-based services that underpin the organization's cloud infrastructure.• Develop business-focused solutions using Power Apps, Power Automate, and Power BI to improve reporting and streamline operational processes.• Investigate high-severity incidents, perform root-cause analysis, and implement durable fixes across Microsoft 365 and Azure platforms.• Build and maintain automation using PowerShell and Microsoft Graph integrations to reduce manual administrative effort and improve consistency.• Produce and update technical documentation covering architecture, configurations, operational procedures, and support standards.• Assess emerging Microsoft capabilities and licensing updates, then provide recommendations on adoption, governance, and practical use.• Provide technical mentorship to less experienced team members and collaborate with security, compliance, and IT partners on audits, controls, and risk reduction.
2026-09-15T00:00:00Z

Server Operator

San Jose, CA
onsite
Temporary / Contract
33.25 - 35 USD / Hourly
We are looking for a Server Operator to support daily system administration activities and frontline technical assistance for a server-focused environment in San Jose, California. This Long-term Contract position is ideal for someone who is comfortable working hands-on with Linux-based systems, resolving access and authentication issues, and helping users navigate technical problems across core infrastructure. The role combines hardware support, ticket troubleshooting, and coordination with senior technical teams to keep operations running smoothly. Responsibilities: • Install and rack server hardware while maintaining accurate equipment and asset records. • Provide first-level support to users experiencing issues with server access, password resets, and core environment connectivity. • Investigate incoming service requests, identify likely causes, and route more advanced issues to the appropriate technical teams. • Use Linux administrative commands to diagnose system problems and assist with operational troubleshooting. • Support identity and authentication-related issue resolution, including access workflows tied to enterprise authentication platforms. • Monitor reported issues across a large server estate, checking network reachability, account status, and system accessibility as initial troubleshooting steps. • Manage and update support tickets in Jira, ensuring issues are documented clearly and progressed in a timely manner. • Assist with environment-related tracking and asset management activities, including updates and reporting through Excel and related tools.
2026-10-05T00:00:00Z

Systems/Infrastructure Engineer

Petaluma, CA
onsite
Permanent / Full Time
110000 - 135000 USD / Yearly
A growing private aviation services organization is seeking a Senior Systems / Infrastructure Engineer to support and secure its enterprise infrastructure, cloud platforms, and business-critical systems. This is a hands-on role responsible for administering Microsoft technologies, Azure cloud environments, virtualization platforms, networking, and security tools while driving infrastructure modernization and operational excellence.What You'll OwnMicrosoft 365, Azure administration and migrations, Active Directory, Entra ID, VMware/Hyper-V, infrastructure modernization, security tools, and identity management. Networking experience is important but serves as a supporting component of the role rather than the primary focus.Role FocusThis position is primarily centered on systems administration and infrastructure engineering, with significant responsibility for Azure administration, cloud implementations, migrations, and hybrid environments. You'll work across Microsoft technologies, virtualization, identity management, and security platforms while helping drive modernization initiatives throughout the organization. Security operations and network administration are important aspects of the role, but deep network architecture is not the primary focus.Key ResponsibilitiesInfrastructure & Cloud Administration<ul><li>Administer and support Microsoft 365, Entra ID (Azure AD), Active Directory, Windows Server, Group Policy, and hybrid cloud environments.</li><li>Lead and support Azure administration, implementation, migration, and optimization projects.</li><li>Design, deploy, and maintain Azure cloud services, hybrid identity solutions, and cloud-based infrastructure.</li><li>Manage VMware and Hyper-V environments, enterprise servers, storage, backups, and core infrastructure.</li><li>Implement patching, monitoring, system hardening, and infrastructure best practices.</li></ul>Network Administration<ul><li>Manage and troubleshoot enterprise LAN/WAN environments.</li><li>Support switches, routers, firewalls, VPNs, wireless infrastructure, and network segmentation.</li><li>Ensure high availability, performance, and reliability across on-premises and cloud environments.</li></ul>Security & Identity Management<ul><li>Administer Okta, MFA, identity governance, privileged access, and user lifecycle management.</li><li>Support SIEM, EDR, vulnerability management, endpoint security, IDS/IPS, and security monitoring platforms.</li><li>Perform vulnerability remediation, risk reduction, and security hardening initiatives.</li><li>Implement Zero Trust security principles and secure access controls.</li></ul>Incident Response & Compliance<ul><li>Participate in security incident response, investigation, root cause analysis, and remediation efforts.</li><li>Support compliance initiatives related to NIST, CIS, SOC 2, GDPR, and CCPA.</li><li>Maintain technical documentation, infrastructure diagrams, runbooks, and operational procedures.</li></ul>
2026-10-07T00:00:00Z

School Administrator

Oakland, CA
onsite
Temporary / Contract
25 - 27 USD / Hourly
<ul><li>Manage daily front office and administrative operations to ensure the school runs efficiently.</li><li>Maintain student records, attendance, enrollment documentation, and other confidential files with accuracy and discretion.</li><li>Serve as a primary point of contact for students, parents, staff, and visitors, providing professional and courteous support.</li><li>Coordinate calendars, meetings, events, and school communications.</li><li>Assist with registration, onboarding, reporting, and general office administration.</li><li>Support school leadership and faculty with operational and administrative needs.</li><li>Communicate effectively with Spanish-speaking families and assist with translation or interpretation of routine school-related information as needed.</li><li>Help ensure compliance with school policies, procedures, and administrative requirements.</li></ul>
2026-09-25T00:00:00Z

Business Systems Analyst

Walnut Creek, CA
onsite
Permanent / Full Time
150000 - 175000 USD / Yearly
We are looking for a Business Systems Administrator to support and enhance the technology platforms that power a growing investment advisory firm in the East Bay. This role centers on administering Salesforce and a portfolio of business applications while partnering with teams across the organization to improve workflows, strengthen system controls, and resolve day-to-day technology issues. The ideal candidate brings hands-on experience managing SaaS platforms, a practical approach to automation, and the ability to turn business needs into reliable, user-friendly solutions. Responsibilities:• Oversee daily administration of Salesforce, including configuration of objects, fields, user roles, permissions, reports, dashboards, and workflow automation.• Provide timely troubleshooting and user support for Salesforce and other firm applications, ensuring employees can work efficiently across departments.• Maintain and support key business platforms such as Orion, DocuSign, Box, Jump AI, Schwab Advisor Center, Fidelity Wealthscape, Calendly, and related tools.• Manage user provisioning, security settings, application access, and routine system upkeep to maintain stable and compliant operations.• Partner with software vendors and external IT resources to investigate issues, coordinate resolutions, and improve platform performance.• Analyze current business processes, identify inefficiencies, and implement technology-driven improvements that reduce manual effort.• Build, test, and maintain Salesforce Flows and other automations to streamline operations and support scalable business processes.• Assist with system integrations, data transfers, upgrades, testing efforts, and broader technology initiatives across the firm.• Create and maintain clear documentation for systems, procedures, integrations, and recurring administrative tasks while supporting onboarding, offboarding, access reviews, and security-related activities.
2026-09-30T00:00:00Z

Business Systems Analyst

Oakland, CA
remote
Permanent / Full Time
125000 - 155000 USD / Yearly
We are looking for a Business Systems Analyst to support operational improvements and business process clarity for a customer-focused environment in Oakland, California. This role partners with stakeholders to evaluate current workflows, define practical solutions, and translate business needs into clear documentation for delivery teams. The ideal candidate brings strong analytical thinking, experience working in service-driven settings, and the ability to contribute effectively within Agile Scrum teams. Responsibilities:<ul><li>Partner with business teams, IT, and vendors to deliver application solutions from planning through launch.</li><li>Develop deep knowledge of assigned systems and business processes.</li><li>Analyze needs, identify solutions, and provide strategic recommendations.</li><li>Advocate for user needs to ensure successful product outcomes.</li><li>Lead requirements gathering, documentation, and stakeholder collaboration.</li><li>Coordinate with technical teams on integrations and system functionality.</li><li>Configure, maintain, and support enterprise applications.</li><li>Manage testing, deployments, upgrades, and migrations.</li><li>Serve as a key liaison between business, IT, leadership, and vendors.</li><li>Foster teamwork, collaboration, and continuous product improvement.</li></ul>
2026-09-21T00:00:00Z

Security Network Engineer

San Jose, CA
onsite
Temporary / Contract
60 - 70 USD / Hourly
We are looking for an experienced Security Network Engineer to support and strengthen a data center environment in California. This long-term contract opportunity is ideal for a senior specialist who brings deep expertise in secure network operations, infrastructure monitoring, and enterprise firewall administration. The role focuses on maintaining a reliable, high-performing network across a smaller infrastructure footprint while partnering with teams that operate during Pacific Time hours. Responsibilities: • Manage and optimize secure network infrastructure across data center switching, routing, and firewall platforms. • Administer firewall environments and centralized policy management tools to maintain strong security controls and network availability. • Monitor network performance and security events, identify issues proactively, and drive timely resolution of incidents. • Support day-to-day operations for a compact but critical infrastructure environment with a focus on stability and efficiency. • Implement configuration changes, upgrades, and troubleshooting activities across core networking components. • Use network monitoring platforms such as SolarWinds to track health, capacity, and performance trends. • Contribute technical expertise on Cisco-based environments, including Nexus platforms where applicable. • Collaborate with internal stakeholders and remote teams to ensure dependable support coverage during Pacific Time business hours.
2026-09-21T00:00:00Z

9 results for Systems Administrator in San Francisco, CA