Results for Systems Administrator Jobs in Livermore, CA

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Systems Administrator

Martinez, CA
onsite
Temporary to Hire
45 - 60 USD / Hourly
Robert Half is looking for a Systems Administrator to support and maintain a complex enterprise technology environment in California. This Systems Administrator opportunity is ideal for a hands-on technical professional with strong experience in Windows Server, VMware, Active Directory, networking, and infrastructure support. The Systems Administrator will be responsible for maintaining critical systems, troubleshooting escalated technical issues, supporting infrastructure projects, and improving the reliability, performance, and security of enterprise technology. This position requires someone who can work independently, collaborate with senior technical staff, and provide exceptional support to end users. This Systems Administrator Role is an onsite position out of Martinez, Ca and has the potential to go fulltime. Responsibilities:<ul><li>Administer, configure, and maintain enterprise infrastructure, including Windows servers, VMware virtual environments, Active Directory, networks, VPNs, firewalls, and storage systems.</li><li>Support the installation, configuration, testing, maintenance, and troubleshooting of physical and virtual servers, network devices, and enterprise applications.</li><li>Manage Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, file services, and user account administration.</li><li>Support VMware virtualization technologies, including vCenter, vSphere, vMotion, and virtual machine management.</li><li>Troubleshoot complex hardware, software, network connectivity, application access, and system performance issues.</li><li>Perform routine infrastructure maintenance, including system backups, patch management, operating system upgrades, security updates, and performance optimization.</li><li>Monitor infrastructure health, network security, and system availability while identifying and resolving potential issues.</li><li>Administer Microsoft 365, Exchange, and related cloud-based services to support enterprise communications and collaboration.</li><li>Support network infrastructure, including LAN/WAN environments, switches, routers, wireless connectivity, firewalls, and VoIP systems.</li><li>Assist with storage administration, disaster recovery processes, data protection, and system restoration activities.</li><li>Utilize PowerShell and other scripting tools to automate administrative tasks and improve operational efficiency.</li><li>Serve as a second-level escalation resource for technical support issues involving servers, networks, applications, and end-user systems.</li><li>Collaborate with internal teams, technical leadership, and external vendors on infrastructure improvements and technology implementations.</li><li>Develop and maintain technical documentation, system configurations, troubleshooting procedures, and operational guidelines.</li><li>Identify opportunities to improve infrastructure reliability, security, automation, and overall IT service delivery.</li></ul>
2026-10-14T00:00:00Z

Network/Systems Manager

Livermore, CA
onsite
Temporary to Hire
65 - 70 USD / Hourly
We are looking for an experienced Network/Systems Manager to join our team in Livermore, California. This is Network/Systems Manager a Contract-to-Permanent position offering an opportunity to lead and oversee critical network operations while collaborating with management and technical teams. The ideal Network/Systems Manager will take ownership of network systems, provide strategic recommendations for improvements, and ensure seamless technology operations across multiple sites. This is an onsite position sitting in Livermore, Ca. The ideal Network/Systems Manager will have Palo Alto firewall experience, strong Cisco networking skills, and a background in Active Directory, VMware, and Google Workspace. The Network/Systems Manager will also help manage security in collaboration with our managed security provider, including patch management, configurations, and oversight of new firewall deployment. Experience with Cisco VoIP systems—particularly in design and configuration—is preferred. When the current manager is out, this Network/Systems Manager role will act as the primary liaison to upper management, requiring excellent communication skills and the ability to present clearly to executives. You will also be the go-to person for staff when issues arise, ensuring problems are addressed quickly and effectively. Responsibilities:•Key Responsibilities<ul><li>Oversee the network and virtual server environments, ensuring reliable and secure operations across all sites.</li><li>Administer LAN/WAN infrastructure including Cisco network equipment, virtualization platforms (VMware), Active Directory, user accounts, and network services.</li><li>Manage and configure firewalls (Palo Alto) and coordinate with security providers for patching, monitoring, and threat mitigation.</li><li>Oversee deployment of new network and security hardware, including upcoming firewall projects.</li><li>Configure and support Cisco VoIP systems, including design and implementation.</li><li>Troubleshoot and resolve hardware, software, and network issues to minimize downtime.</li><li>Evaluate requests for technical assistance, determine appropriate actions, and assign resources accordingly.</li><li>Collaborate with leadership to plan short- and long-term technology upgrades, replacements, and system improvements.</li><li>Design and optimize network architectures (e.g., VLAN, VPN, routing, content filtering, QoS, IDS/IPS, etc.) for high performance and security.</li><li>Install and update network software, service packs, and security patches across multiple platforms.</li><li>Monitor servers, appliances, and network devices to ensure proper performance and availability.</li><li>Lead technology projects, including migrations, new implementations, and product evaluations, ensuring they meet deadlines and quality standards.</li><li>Coordinate with internal teams, vendors, and contractors to complete projects and resolve issues efficiently.</li><li>Prepare documentation including network maps, technical reports, procedures, and recommendations for improvements.</li><li>Stay informed on industry trends, tools, and best practices to inform purchasing and operational strategies.</li><li>Act as a primary contact for management, providing updates, reports, and recommendations.</li></ul>
2026-10-08T00:00:00Z

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>
2026-10-15T00:00:00Z

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

5 results for Systems Administrator in Livermore, CA