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Senior Systems Administrator Jobs in Spring Valley, CA

KES, Inc

Sr. Systems Administrator

San Diego, CA · On-site

$110K - $130K/yr

Position Summary The Sr Systems Administrator will be responsible for providing daily operational requirements of computer network systems including workstation, file servers, virtual machines.

Security On-Demand

Sr. Systems Administrator

San Diego, CA · On-site

$91K - $123K/yr

Security on Demand is looking for a Sr. Systems Administrator. In this role, you will be a key contributor as you work with various teams in a DevOps environment where you can participate in the ...

Shield AI

Senior Systems Administrator (R5443)

San Diego, CA · On-site

$91K - $123K/yr

The Senior Systems Administrator is responsible for the administration, support, optimization, and continuous improvement of the enterprise IT infrastructure supporting Shield AI's business ...

CalPrivate Bank

Systems Administrator

La Jolla, CA · On-site

Systems Administrator The Location: SB, LA, OC, SD, California Make a Difference Where It Matters Most At CalPrivate Bank, we believe banking is personal. We have deep roots in the communities we ...

CalPrivate Bank

Systems Administrator

San Diego, CA · On-site

Systems Administrator The Location: SB, LA, OC, SD, California Make a Difference Where It Matters Most At CalPrivate Bank, we believe banking is personal. We have deep roots in the communities we ...

BAE Systems

Systems Admin Sr

San Diego, CA · On-site

$97K - $164K/yr

We are seeking an experienced Systems Administrator to implement, maintain, and support our enterprise IT infrastructure consisting of Windows and Linux systems. The ideal candidate will have strong ...

CalPrivate Bank

Systems Administrator

San Diego, CA · On-site

Systems Administrator The Location: SB, LA, OC, SD, California Make a Difference Where It Matters Most At CalPrivate Bank, we believe banking is personal. We have deep roots in the communities we ...

GlobalXperts

Systems Administrator

San Diego, CA

The System Administrator (SA) is responsible for server installation, maintenance, back up and security, along with performance tuning and capacity planning. System Administrators should possess an ...

GlobalXperts

Systems Administrator

San Diego, CA · On-site

The System Administrator (SA) is responsible for server installation, maintenance, back up and security, along with performance tuning and capacity planning. System Administrators should possess an ...

Concept Plus

Sr. System Administrator

San Diego, CA · On-site

$91K - $123K/yr

Our highly certified experts build systems that drive efficiency, accelerate modernization, and ... About the role Concept Plus is seeking a Senior System Administrator to act as on-site support for ...

Seasats

Senior IT Systems Administrator

San Diego, CA · On-site

$115K - $155K/yr

Role: Senior IT Systems Administrator Location: San Diego, CA (in-office) Salary: $115,000 - $155,000 / yr + stock options, 401k matching, and other benefits Role Overview: Seasats is growing rapidly ...

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All JobsSystems Administrator JobsSenior Systems Administrator JobsSenior Systems Administrator Jobs in Spring Valley, CA

Senior Systems Administrator information

See Spring Valley, CA salary details

$50.1K

$104.6K

$146.8K

How much do senior systems administrator jobs pay per year?

As of Aug 27, 2026, the average yearly pay for senior systems administrator in Spring Valley, CA is $104,598.00, according to ZipRecruiter salary data. Most workers in this role earn between $88,000.00 and $119,200.00 per year, depending on experience, location, and employer.

What is a senior systems administrator?

Senior Systems Administrators are IT professionals responsible for managing and maintaining an organization's computer systems, servers, and networks. They oversee system performance, ensure security, troubleshoot complex issues, and often mentor junior administrators. Their work is critical for minimizing downtime, implementing upgrades, and ensuring the reliability and security of IT infrastructure. Senior Systems Administrators typically have years of experience and deep technical knowledge in areas like operating systems, networking, and cloud platforms.

What does a senior systems administrator do?

A senior systems administrator is an IT professional who manages the network and computer system infrastructure for a company or organization. Your responsibilities may vary depending on your employer; at a large company, you may be in a management position in which you oversee a team or department to design and implement network and database solutions for an organization, perform software programming to expand technological capabilities, or troubleshoot network issues and devise solutions. In a smaller company, you may more directly engage with these duties, supported by a small technical staff.

What are the key skills and qualifications needed to thrive as a senior systems administrator, and why are they important?

To thrive as a Senior Systems Administrator, you need deep expertise in server management, network administration, and operating systems, typically backed by a bachelor’s degree in IT or a related field. Familiarity with tools like VMware, Active Directory, Linux/Windows Server, and certifications such as CompTIA Server+, Microsoft Certified Solutions Expert (MCSE), or Red Hat Certified Engineer (RHCE) are often required. Strong problem-solving abilities, attention to detail, and effective communication skills help you excel in troubleshooting and collaborating with IT teams. These competencies are crucial for maintaining system reliability, minimizing downtime, and supporting organizational technology needs.

What are some common challenges faced by senior systems administrators, and how can they be addressed?

Senior Systems Administrators often encounter challenges such as managing complex, multi-platform environments, ensuring uptime during upgrades or maintenance, and responding to unexpected technical incidents. Balancing proactive system improvements with urgent troubleshooting is a frequent demand. To address these challenges, it's important to prioritize clear documentation, automate routine tasks where possible, and foster strong communication with IT and non-IT teams. Staying current with industry best practices and security protocols also helps prevent many common issues before they arise.

What is the difference between Senior Systems Administrator vs Systems Engineer?

AspectSenior Systems AdministratorSystems Engineer
CredentialsTypically requires certifications like CompTIA Server+, Microsoft Certified: Windows Server, or Cisco CCNAOften requires similar certifications, with additional focus on network design and engineering
Work EnvironmentPrimarily manages and maintains existing IT infrastructure within organizationsDesigns, develops, and implements new systems and network solutions
Employer & Industry UsageCommon in IT departments across various industries, focusing on operational stabilityFound in organizations needing system design and integration, often in tech and engineering sectors

While both roles require strong technical skills and certifications, Senior Systems Administrators focus on maintaining and supporting existing systems, whereas Systems Engineers are more involved in designing and implementing new systems and solutions.

Do senior systems administrators make good money?

Senior systems administrators typically earn a competitive salary that reflects their experience, technical skills, and certifications such as CompTIA or Cisco. Their compensation often includes benefits and opportunities for advancement, with salaries varying by industry and location. They are responsible for managing complex IT infrastructure, which justifies higher pay compared to entry-level roles.

How much does a senior systems administrator make in the US?

A senior systems administrator in the US typically earns between $80,000 and $130,000 annually, depending on experience, location, and industry. They often require strong skills in network management, server administration, and certifications such as CompTIA or Cisco. Salaries can vary based on the complexity of the environment and the size of the organization.

Is a senior systems administrator a high paying job?

A senior systems administrator typically earns a higher salary compared to entry-level roles due to their experience and technical skills in managing complex IT infrastructure. Salaries vary by industry, location, and certifications such as CompTIA or Cisco, but they are generally considered well-compensated within the IT field.
More about Senior Systems Administrator jobs

What cities near Spring Valley, CA are hiring for Senior Systems Administrator jobs?

Cities near Spring Valley, CA with the most Senior Systems Administrator job openings:

Senior Systems Administrator jobs near you
Infographic showing various Senior Systems Administrator job openings in Spring Valley, CA as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 9% Part Time, 4% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $104,598 per year, or $50.3 per hour.

Sr. Systems Administrator

San Diego, CA • On-site

Koam Engineering Systems
See more jobs at Koam Engineering Systemsexternal

$110K - $130K/yr

Full-time

Posted 9 days ago

Job description

Koam Engineering Systems, Inc. (KES Inc.) is an employee-owned small business specializing in technology innovation and systems integration by combining innovative products and reliable engineering services. Headquartered in San Diego, California and with offices in Gig Harbor, WA KES provides services globally in systems engineering amp; technical assistance, requirements analysis, software design amp; development, systems integration amp; testing, independent verification amp; validation, and operational amp; logistic support.
Position Summary
The Sr Systems Administrator will be responsible for providing daily operational requirements of computer network systems including workstation, file servers, virtual machines.
Responsibilities
  • Experience as a Sr Network Engineer
  • Installation of the following:
  • Hardware/software
  • System upgrades
  • Network accounts.
  • Network security.
  • Interface and updates
  • Ability to document the local system design.
  • VMWare setup and maintenance.
  • Maintain, troubleshoot, and implement network security tools including firewalls, anti-virus, and intrusion detection services.
  • Experience with storage solutions, networking configurations and disaster recovery.
  • Ability to create, manage, and deploy containers.
  • Troubleshooting skills for vCenter, ESXI hosts, NSX, Networking and VSAN storage.
  • Capacity planning for virtual hosts and VMs.
  • Experience with creating technical documentation of How-To-Guides and maintaining OneNote/SharePoint for team members.
  • Strong understanding of virtual machines within architecture diagrams and how to articulate what data will be going across certain networks.
  • Other Duties as assigned.
Required Knowledge, Skills, amp; Abilities
Education/Licensure/Credentials
Required:
  • Bachelor’s degree in related fields such as computer science, computer engineering, information systems, network engineering, systems engineering, software engineering or a closely related discipline
OR
  • Equivalent specialized knowledge customarily acquired through a combination of military training, formal technical instruction, certifications, and substantial progressively responsible practical experience performing work of comparable scope, complexity, and independent judgment
  • Security+ (DoD IAT Level II) or ability to meet requirements within three months of employment
  • VMWare/vSphere
  • This position requires an existing U.S. Government DoD granted security clearance/eligibility at the final Top-Secret level. Individuals must be able to maintain the necessary security clearance/eligibility for continued employment. U.S. Citizenship is required.
  • Must be able to travel as needed.
  • Job Located at a U.S. Government Facility
Preferred:
  • Windows Server
  • Linux +
  • Familiarity with Navy Risk Management Framework (RMF) process and eMASS
  • Contributes to development of Cybersecurity policies/SOPs (System Configuration, Incident Response, Disaster Recovery, Contingency/Business Continuity, etc.)
Experience
Required:
  • 5 years’ professional experience in systems administration
  • 3 years of network engineering experience with 2 years of virtualization.
  • Ability to operate effectively in a team environment as well as independently and provide direct interface with customers.
Since 1995, KES continues to foster the entrepreneurial spirit of a growing small business that focuses on the needs of its customers and employees and serves to provide a rewarding and challenging career. KES offers a competitive salary and full range of benefits. KES, Inc. is an EEO/AA Employer committed to hiring and retaining a diverse workforce.

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