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4 results for Security Network Engineer in San Jose, CA
- Fremont, CA
- onsite
- Temporary / Contract
- 55.4135 - 64.163 USD / Hourly
- We are looking for a Cyber Security Engineer to support and strengthen enterprise security operations in Fremont, California. This Long-term Contract position is ideal for a detail-oriented individual who brings hands-on expertise in network protection, firewall administration, and secure infrastructure management. The role focuses on maintaining resilient security controls, improving configuration standards, and helping protect critical systems from evolving threats.<br><br>Responsibilities:<br>• Administer and optimize cybersecurity controls across network and infrastructure environments to maintain strong system protection.<br>• Manage, monitor, and troubleshoot Check Point and Cisco ASA firewall platforms to ensure reliable and secure connectivity.<br>• Review firewall rules, implement policy updates, and enforce access controls in line with security best practices.<br>• Maintain accurate configuration standards and support change activities to improve consistency across security devices.<br>• Investigate security issues affecting network defenses and coordinate timely resolution to minimize operational risk.<br>• Partner with technical teams to align security measures with infrastructure needs and compliance expectations.<br>• Assess existing security configurations and recommend enhancements that strengthen the overall defensive posture.
- 2026-10-28T00:00:00Z
- Fremont, CA
- onsite
- Temporary / Contract
- 47.5 - 55 USD / Hourly
- We are looking for a Systems Engineer to support and enhance core enterprise infrastructure in Fremont, California. This Contract position will focus on maintaining secure, reliable, and efficient environments across directory services, server platforms, messaging systems, and virtualized technologies. The ideal candidate brings strong technical depth in Microsoft-based infrastructure and a proactive approach to troubleshooting, administration, and continuous improvement.<br><br>Responsibilities:<br>• Administer and optimize Active Directory environments, including user access, group policies, and directory health.<br>• Manage Microsoft Windows Server systems to ensure stability, performance, and ongoing operational readiness.<br>• Support Azure Active Directory administration, including identity management and access control configuration.<br>• Maintain and troubleshoot Citrix technologies to provide dependable application and desktop delivery services.<br>• Oversee Microsoft Exchange administration, including mailbox management, system performance, and issue resolution.<br>• Monitor infrastructure services and respond to incidents with timely diagnosis and corrective action.<br>• Implement system updates, patches, and configuration changes while minimizing service disruption.<br>• Document technical procedures, environment changes, and support activities to maintain operational visibility.
- 2026-10-28T00:00:00Z
- San Jose, CA
- onsite
- Temporary / Contract
- 55.4135 - 64.163 USD / Hourly
- We are looking for a Systems Engineer to support and enhance core enterprise infrastructure in San Jose, California. This Long-term Contract position is ideal for someone with strong experience administering Windows-based environments, identity platforms, and messaging systems. The role focuses on maintaining reliable system performance, strengthening access management, and helping teams resolve complex infrastructure issues across the organization.<br><br>Responsibilities:<br>• Administer and optimize Active Directory services to support secure user access, group policies, and directory health.<br>• Maintain Microsoft Windows Server environments, including configuration, patching, performance monitoring, and issue resolution.<br>• Support Azure Active Directory operations such as identity synchronization, access controls, and authentication management.<br>• Manage Microsoft Exchange administration tasks to help ensure stable mail flow, mailbox availability, and system reliability.<br>• Investigate infrastructure incidents and implement corrective actions to minimize downtime and recurring technical problems.<br>• Collaborate with internal teams to plan, test, and deploy system improvements that strengthen platform stability and security.<br>• Document system configurations, operational procedures, and technical changes to support maintainability and knowledge sharing.
- 2026-10-30T00:00:00Z
- Livermore, CA
- onsite
- Temporary to Hire
- 65 - 70 USD / Hourly
- <p>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. </p><p><br></p><p>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. </p><p><br></p><p>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.</p><p><br></p><p>Responsibilities:</p><p>•<strong>Key Responsibilities</strong></p><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><p><br></p>
- 2026-10-08T00:00:00Z