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6 results for Network Security Administrator in San Francisco, CA

Security Network Engineer

San Jose, California
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

Cyber Security Analyst

Los Angeles, California
remote
Temporary / Contract
40 - 45 USD / Hourly
We are seeking a motivated Cybersecurity Analyst to help protect our cloud infrastructure, web platforms, and sensitive data. In this role, you will monitor security events, investigate threats, respond to incidents, and implement security controls across AWS and web environments. The ideal candidate is hands-on, security-minded, and passionate about identifying risks before they become problems. Day-to-Day Responsibilities<ul><li>Monitor Datadog alerts, logs, and security events to identify and respond to potential threats.</li><li>Investigate phishing attempts, suspicious logins, bot activity, malware, and unauthorized access incidents.</li><li>Secure and support AWS environments, WordPress platforms, and member-facing applications.</li><li>Conduct security audits, vulnerability assessments, and remediation efforts to reduce risk.</li><li>Review and strengthen authentication controls, user access, and role-based permissions.</li><li>Monitor and mitigate suspicious traffic, account abuse, and security vulnerabilities.</li><li>Support HIPAA, SaaS compliance, and audit-readiness initiatives.</li><li>Partner with technical and operations teams to implement security best practices and improve the organization's overall security posture.</li></ul>
2026-09-19T00:00:00Z

Systems Administrator

Menlo Park, California
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

Sr Network Engineer

Concord, California
onsite
Permanent / Full Time
140000 - 150000 USD / Yearly
We are looking for an experienced Sr Network Engineer to support and strengthen a hybrid enterprise infrastructure in Concord, California. This role focuses on designing, optimizing, and securing network environments that enable dependable connectivity, protected data exchange, and stable day-to-day operations. The ideal candidate brings strong technical depth across cloud and on-premises platforms, a practical troubleshooting mindset, and the ability to communicate effectively with both technical and non-technical stakeholders. Responsibilities: • Design, maintain, and enhance network infrastructure across routing, switching, wireless connectivity, firewall platforms, VPN services, and hybrid Azure-integrated environments. • Develop and uphold network architecture standards, technical documentation, and long-term infrastructure plans that improve performance, segmentation, and security. • Administer and support a hybrid Microsoft ecosystem, including cloud and on-premises services, to ensure reliable access and operational continuity. • Manage the Hyper-V environment and related infrastructure components to maintain availability, scalability, and system efficiency. • Investigate and resolve complex network and connectivity issues, serving as an escalation point for advanced incidents and selected help desk matters. • Oversee backup operations for critical systems and verify that recovery processes align with business continuity needs. • Partner with IT leadership and security stakeholders to implement preventive safeguards and contribute to incident response efforts. • Provide technical guidance to end users and entry-level team members while promoting strong service standards and timely issue resolution. • Monitor industry developments, evaluate emerging technologies, and recommend improvements that strengthen the overall network environment. • Travel occasionally to support offices or operational needs as required.
2026-09-18T00:00:00Z

Systems Engineer

Martinez, California
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

Systems Engineer II

San Ramon, California
remote
Permanent / Full Time
85000 - 124000 USD / Yearly
The System Engineer II supports the reliability, security, availability, and continuous improvement of enterprise cloud infrastructure and platform services. This role assists with Azure and/or AWS operations, cloud solution design, Infrastructure as Code (IaC), and the deployment and operational support of AI services in Azure, including Microsoft Foundry. The position works closely with project managers, business stakeholders, application teams, and senior engineers to deliver scalable, secure, and well-documented technology solutions. Key ResponsibilitiesSupport daily operations, monitoring, maintenance, troubleshooting, and reliability for Azure and/or AWS environments.Assist with the design, deployment, configuration, patching, and optimization of cloud infrastructure and platform services.Develop and maintain Infrastructure as Code using Azure Bicep, Azure CLI, or PowerShell to enable repeatable and secure deployments.Provision and support Azure AI services, including Microsoft Foundry, through environment setup, access management, monitoring, and documentation.Partner with business and technical teams to gather requirements and deliver cloud-based solutions.Create and maintain technical documentation, runbooks, standards, and operational procedures.Participate in change management, production readiness, incident response, and availability management processes.Identify automation opportunities to improve efficiency and reduce manual effort.Collaborate with senior engineers and architects on cloud standards, security practices, and platform enhancements.Monitor cloud costs and recommend optimization opportunities.Manage monitoring and observability tools such as Azure Monitor, Application Insights, and CloudWatch.Support security patching, vulnerability remediation, and compliance controls.Provide technical support and communicate effectively with both technical and non-technical stakeholders.
2026-09-14T00:00:00Z