Senior Firewall Admin jobs in San Francisco, CA

Dublin, California

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Today

Senior Systems Administrator Direct Hire Full-Time Role Pay Rate: $50 - $60 per hour Location: Dublin, CA - Hybrid Role Job Summary: The Senior Systems Administrator will be responsible for working on complex projects, assignments, and issues where they will determine methods and procedures needed. They will also coordinate activities of other associates from among all support teams involved, not just the network, as the situation warrants. Areas of focus include relationship management, se

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Full-time

$50 - $60 per hour

PKI Security Admin (Senior Level/SME)

Remote

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26d ago

PKI Security Admin (Senior Level/SME). Location: Remote Pay Range: $120,000-$190,000 Education Level: Bachelors degree in computers or other IT, Security related major; or equivalent experience Experience Years: 9+ years relevant experience Support internal and external customers with certificate-related issues across USPS applications and services.Provide guidance and training to key stakeholders on PKI lifecycle management, processes, and procedures.Create reports and documentation using AI an

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Contract

60 - 90

Lead Network Admin

Remote

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10d ago

We're seeking for an Lead Network Admin for our direct client. Please review the below job Description and revert with your interest for the same. Job details: Role: Lead Network Admin Remote but Boulder Colorado preferred 12 months and possibly longer. ASAP start. Job description: 3 to 5 years or more as a Network systems administrator. Configuring, monitoring, and managing the performance of a network to maintain quality of services. This may include expertise in network routing and switching

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Contract

Depends on Experience

Network Security Engineer, Senior

Remote or Downers Grove, Illinois

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Today

Responsibilities Sentinel Technologies is searching for a passionate and experienced Senior Network Security Engineer who thrives in a fast-paced, solutions-driven environment. As a Senior Network Security Engineer you will design, implement, and configure secure network solutions for mid-to-enterprise-level clients using cutting-edge technologies. Your commitment to customer satisfaction and highly available and secure solutions will position you for success. Sentinel a growing MSP recognized

Full-time

USD 100,000.00 - 150,000.00 per year

Senior Infra Engineer

Remote

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2d ago

Role Overview We are seeking experienced Infra Engineers with a strong senior systems administration mindset and hands on expertise across Linux, Windows, Ansible, IPsec, network firewalls, and enterprise infrastructure. The ideal candidate will have strong experience with enterprise scalability, standards and documentation, consistency and automation, compliance requirements, security posture, and detailed troubleshooting. The candidate should be able to analyze symptoms across operating system

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Full-time

Depends on Experience

Senior Linux Administrator

Remote or Monroe, Louisiana

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Today

RESPONSIBILITIES: Kforce has a client that is seeking a Senior Linux Administrator in Monroe, LA. Summary: We are seeking a Senior Linux Systems Administrator to design, deploy, secure, and support Linux-based infrastructure for a classified federal program. This role requires an experienced engineer who can build environments from the ground up and manage them through their full lifecycle, including virtualization, security, automation, monitoring, authentication services, and application supp

Full-time

$82,000 - $121,000 annually

Senior Cybersecurity Architect

Remote

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Today

Position Overview: This role serves HomeServe's senior security architecture authority, responsible for designing, reviewing, and governing secure architecture for new and existing services, applications, and integrations before they reach production. The position creates business value by reducing the likelihood and blast radius of security incidents, accelerating secure delivery through reusable patterns and paved-road guardrails, and helping HomeServe meet customer, regulatory, and contractu

Full-time

USD 143,266.23 - 191,021.64 per year

Senior Linux Administrator (Active Clearance)

Remote

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Today

Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high-performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities. At Lumen, you'll work on infrastructure customers rely on today and build for what's next, where performance, security, and resilience matter. This is a high accountability environment where bold ideas drive

Full-time

USD 82,969.00 - 110,625.00 per year

Firewall Engineer

Remote

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6d ago

MLL Firewall Engineer ContractLocation: Raritan, NJ Area | Remote Schedule: MondayFriday, 8:00 AM5:00 PM EST | 40 hours/week Contract: Contract position Additional Support: Occasional evening/weekend support for scheduled firewall lockdown activities, with advance noticePosition OverviewSystech is seeking an experienced MLL Firewall Engineer to support global firewall segmentation, application-specific rule development, traffic analysis, and firewall lockdown initiatives.The ideal candidate wil

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Contract

Depends on Experience

Senior Database Administrator

Remote or Melville, New York

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Today

About Leviton At Leviton, we build what's next to light, power, and connect everyday spaces, from electrical to lighting, to data networks, and energy management. With over 115 years of history, Leviton develops thoughtful solutions that help make its customers' lives easier, safer, more efficient, and more productive. We recognize that our people are our greatest asset. We ASK questions, EMBRACE challenges, SEEK new perspectives, and ANTICIPATE what comes next. It's about each person bringing

Full-time

USD 140,000.00 per year

Network Security Engineer / Remote / Firewall

Remote

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Today

Our client is a large enterprise organization looking for a Network Security Engineer to join their team on a contract basis. This fully remote role will focus on network security, firewall security and policy analysis, configuration compliance, vulnerability management, and security risk remediation while supporting EST business hours and collaborating with U.S.-based and offshore teams. This is a great opportunity for a security professional who enjoys investigating security risks and understa

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Contract

$60 - $75

IT System Administration - Senior/Specialist

Remote or Lacey, Washington

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Today

Salary : $94,620.00 - $127,248.00 Annually Location : Thurston County - Lacey, WA Job Type: Full Time - Permanent Remote Employment: Flexible/Hybrid Job Number: 2026-ITSO1193-07303 Department: Dept. of Ecology Division: Information Technology Services Opening Date: 09/02/2026 Closing Date: Continuous Salary Information: The high end of the salary range, Step M is typically a longevity step Description Keeping Washington Clean and Evergreen The Department of Ecology is hiring an IT System Adminis

Full-time

USD 94,620.00 - 127,248.00 per year

Senior Cyber Systems Administrator

Remote or Rockville, Maryland

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Today

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at ;br> Job Description X-energy is looking for a Senior Cyber Systems Administrator for the development an

Full-time

USD 180,000.00 - 205,000.00 per year

Senior Security Engineer (Firewall) - Mid-Atlantic region

Remote

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Today

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation's top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. Senior Security Engineer - Firewall Configura

Full-time

Firewall Administrator

Remote

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10d ago

Job Title: Firewall Administrator DOD (Dept of Defense) / Department of War(DOW) projects ship required due to program access requirements. Must be eligible to obtain DOD Clearance Duration: up to 12 months Contract with possible extensions Location: Remote Work Work Schedule: 4/10 1st Shift, Monday to Thursday; 10 hours per day Pay Rate: $70/hr - $75/hr on W2 [the pay rate may differ depending on your skills, education, experience, and other qualifications] Featured Benefits: Medical Insur

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Contract

70 - 75

Senior Firewall Admin jobs in San Francisco, CA, USA