4 results for Network Security Administrator in San Francisco, CA

Infrastructure/Security Manager

Oakland, CA
onsite
Contract / Temporary to Hire
70 - 80 USD / Hourly
We are seeking a hands-on Infrastructure and Security Manager to oversee and support a hybrid cloud and on-premise technology environment for a growing organization supporting government-related contracts. This Infrastructure and Security Manager role combines infrastructure operations leadership with cybersecurity compliance, ensuring systems remain secure, reliable, and aligned with CMMC and NIST frameworks. The ideal Infrastructure and Security Manager candidate brings strong experience managing Azure infrastructure, enterprise networking, and security operations, along with a practical understanding of CMMC security requirements. This Infrastructure and Security Manager position is hybrid in Oakland, CA, requiring 2–3 days onsite per week and is a contract to hire opportunity. Key Responsibilities<ul><li>Manage and maintain the organization’s IT infrastructure across cloud and on-premise environments</li><li>Oversee Microsoft Azure infrastructure, networking, and system security</li><li>Administer and support Windows Server and Linux systems</li><li>Lead security operations including monitoring, incident response, and vulnerability management</li><li>Implement and maintain cybersecurity controls aligned with CMMC and NIST frameworks</li><li>Manage enterprise networking including firewalls, VPNs, SD-WAN, and wireless environments</li><li>Oversee security tools such as endpoint protection, log aggregation, and threat detection platforms</li><li>Support and maintain Microsoft 365 and SharePoint security configurations</li><li>Collaborate with leadership on security strategy, compliance readiness, and risk management</li><li>Participate in infrastructure and security initiatives including system upgrades, integrations, and M&A activities</li><li>Work with vendors and internal teams to ensure system reliability, performance, and security</li></ul>
2026-03-12T00:00:00Z

Juniper Network Engineer

Oakland, CA
onsite
Temporary
60 - 75 USD / Hourly
We are looking for an experienced Network Engineer to join our team in Oakland, California. This Network Engineer role is a long-term contract position that requires a proactive and detail-oriented individual capable of managing and troubleshooting a variety of network systems in on-premises environments. The Network Engineer role involves working both independently and collaboratively, including onsite support at 2 different locations throughout the week in Oakland, Ca. This is an Onsite Network Engineer Role. Responsibilities:<ul><li>Support and troubleshoot Juniper network infrastructure (hands-on; non-Cisco environment)</li><li>Maintain and support on‑prem VMware virtualization</li><li>Perform Windows Active Directory cleanup, Group Policy management, and remediation</li><li>Provide Tier 3 support for LAN/WAN, wireless, VoIP, and data center operations</li><li>Support and troubleshoot police services and public safety systems</li><li>Assist with network security infrastructure (firewalls, VPNs, IDS/IPS, NAC)</li><li>Participate in after-hours maintenance windows and critical incident response as needed</li><li>Maintain documentation, asset inventory, and vendor relationships</li></ul>Environment<ul><li>Onsite data center; primarily on‑prem</li><li>Limited cloud usage (Office 365 for email and shared services)</li><li>May be the only technical resource onsite at times</li></ul>
2026-03-24T00:00:00Z

Systems Engineer

San Francisco, CA
onsite
Temporary
60 - 70 USD / Hourly
We're looking for a Systems Engineer who will be responsible for virtualization, enterprise networking, and Veeam backup systems. This role requires at least three years of direct experience with Microsoft Intune, Entra, Active Directory, as well as expertise in enterprise storage solutions and data protection. Responsibilities include maintaining secure and efficient network operations, coordinating with third-party vendors, and driving continual improvement in data backup and virtualization processes. This is a contract to hire position. <ul><li>Oversee and manage managed service providers (MSPs) or consultants supporting virtualization platforms, enterprise networking, Veeam backup and recovery systems</li><li>Act as the internal technical owner for Windows infrastructure, Microsoft 365, and Azure AD (Entra ID)</li><li>Maintain and improve identity, device, and access management using Microsoft Intune, Entra ID / Azure AD and on-prem Active Directory</li><li>Ensure secure, stable, and efficient network and system operations</li><li>Coordinate with third party vendors to troubleshoot issues, manage changes, and deliver projects</li><li>Drive continuous improvement in backup and disaster recovery processes including Virtualization and storage performance, security posture and operational efficiency</li><li>Participate in system planning, documentation, and operational best practices</li></ul>
2026-03-23T00:00:00Z

iManage Systems Engineer

San Francisco, CA
remote
Permanent
110000 - 150000 USD / Yearly
Immediate permanent role to join an established IT Services organization with a long-standing reputation as the first‑choice technology partner for law firms, legal departments, and detail oriented services organizations is seeking an experienced iManage Systems Engineer. This team supports clients nationwide, helping them adopt, migrate, configure, and integrate both iManage Cloud and On‑Premises solutions. This role is 100% remote, operating on a PST schedule, and offers a salary up to $150K plus potential bonus and full benefits. The iManage Systems Engineer will join a team responsible for guiding clients through the full lifecycle of iManage implementations, conversions, migration, system configuration, troubleshooting, and ongoing support. The role also involves contributing to broader IT systems and infrastructure, including O365, Active Directory, Azure or AWS, and general networking. Responsibilities Support nationwide clients through adoption, migration, and integration of iManage Cloud and On‑Prem solutions Perform conversions, implementations, configurations, and troubleshooting Collaborate with internal teams to deliver high‑quality remote support Assist with IT environment components including O365, AD, Azure/AWS, and networking fundamentals
2026-02-24T00:00:00Z