Network administrator jobs in Walnut, CA and nearby (71 jobs)

Network administrator jobs within 25 miles of Walnut, CA. Nearby towns and cities are included. Distances are straight-line, not driving distances.

Counted Nov 8, 2026

Hiring at a glance

View jobs

Open jobs: 71
Employers: 53

Advertised starting pay

Average starting payUSD / year: $104,933Across 21 listings

Employer-advertised starting pay, not employee salaries. Currencies and pay periods stay separate.

Where work happens

Remote: 0%0 listings
Hybrid: 11%8 listings
On-site: 15%11 listings

Not specified: 73% (52 listings)

Employers hiring include CHAOS Industries (6), Contact Government Services, LLC (6), Robert Half (4).

Sources & calculation notes

These figures describe the listings on this role page at the date shown, not the whole job market. Listings can change.

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Hybrid and on-site classifications may be inferred from descriptions. Check the original ad. How we count

Network administrator jobs in Walnut, CA and nearby

Within 25 miles

Save this search

Added 3 days ago
PO
Field Network Technician
Pacific Office Automation
Orange, CA
- $20 to $24 USD / hour
Added 3 days ago
Network Administrator (Korean Bilingual)
SBT Global, Inc.
Irvine, CA
Manage WAN circuits, Layer 3 switching, and company network infrastructure.
Added 3 days ago
B
Linux Systems Administrator, Mid-Level
Bowhead
Corona, CA
- $100,000 to $110,000 USD / year
Bowhead is seeking a highly skilled and experienced Mid-Level Linux System Administrator to join our dynamic IT team. This is a 100% onsite position located in Norco, CA. As a Linux Subject…
Added 4 days ago
Server Systems Administrator 2928- OJO
Right Talent Right Now
Los Angeles, CA
The Server Systems Administrator monitors and troubleshoots server hardware, software and peripheral devices. This includes the configuration, maintenance, and availability of the server…
Added 4 days ago
Linux Systems Administrator
INT Technologies
Los Angeles, CA
Added 4 days ago
RH
Systems Administrator
Robert Half
Los Angeles, CA
- $130,000 to $150,000 USD / year
Added 4 days ago
RH
Systems Administrator III
Robert Half
Los Angeles, CA
- $125,000 to $170,000 USD / year
Added 5 days ago
MC
Procore Champion/System Administrator
Morrow-Meadows Corporation
Walnut, CA
- $100,000 to $140,000 USD / year
Added 5 days ago
Senior Systems Administrator
NFI Industries
EASTVALE, CA
As a member of the Infrastructure & Operations team, the Senior Systems Administrator provides lifecycle management of infrastructure services including planning, engineering, and support.…
Added 9 days ago
Training Systems Administrator
Anduril Industries
Santa Ana, CA
Added 9 days ago
IT Systems Administrator (Linux Admin)
CHAOS Industries
Los Angeles, CA
Added 10 days ago
Senior Network Administrator
CHAOS Industries
Los Angeles, CA
Added 10 days ago
Senior IT Systems Administrator (Azure Windows Admin)
CHAOS Industries
Los Angeles, CA
Added 10 days ago
Network System Administrator
MANTECH
Los Angeles, CA
Added 10 days ago
Network System Administrator
MANTECH
Los Angeles, CA
Added 11 days ago
AE
Business System Administrator
Acuity Eye Group
Santa Ana, CA
- $70,000 to $110,000 USD / year
The Business Systems Administrator serves as a strategic partner between the Information Systems & Technology (IST) and Acuity Departments, providing organizational leadership, driving the…
Added 11 days ago
Senior Network Administrator
CHAOS Industries
Los Angeles, CA
Added 16 days ago
GS
NetSuite Systems Administrator (On-Site)
Golden Star Technology
Cerritos, CA
- $70,000 to $95,000 USD / year
Golden Star Technology Inc. (GST) is seeking an experienced and motivated NetSuite Systems Administrator to join our growing team in Cerritos, California. This is an exciting opportunity…
Added 16 days ago
DD
IT Systems Administrator
D.A. Davidson
Pasadena, CA · Claremont, CA · Irvine, CA
- $24.58 to $38.41 USD / hour
Added 16 days ago
Senior IT Systems Administrator (Azure Windows Admin)
CHAOS Industries
Los Angeles, CA
Added 16 days ago
IT Systems Administrator (Linux Admin)
CHAOS Industries
Los Angeles, CA
Added 16 days ago
Network Technician
The Planet Group
Los Angeles, CA
Configure, optimize, and maintain Cisco-centric local area network environments including switches, routers, and connectivity across one hundred plus geographically dispersed US office…
Added 16 days ago
Network Technician
ManpowerGroup
Los Angeles, CA
Our client, [Industry Descriptor] is seeking a Network Technician to join their team. As a Network Technician, you will be part of the [Department Name] supporting [Team Name(s)]. The ideal…
Added 17 days ago
Network Technician
Experis USA
Los Angeles, CA
Our client, [Industry Descriptor] is seeking a Network Technician to join their team. As a Network Technician, you will be part of the [Department Name] supporting [Team Name(s)]. The ideal…
Added 18 days ago
RH
Systems Administrator
Robert Half
Los Angeles, CA
- $125,000 to $145,000 USD / year
A growing organization is seeking a Systems Administrator to support enterprise cloud platforms, end-user technologies, identity management, and core infrastructure services. This…

Closed listing

Bowhead

Systems Administrator, Entry-Level

Corona, CA, United States

$65,000 to $85,000 USD / year

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Pay: $65,000 to $85,000 USD / year
Closing date: Oct 13, 2027
Posting language: English
Posted: Oct 13, 2026

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Original job description

Archived listing. The details below describe a past opening.

Overview

Bowhead seeks an Entry-Level Systems Administrator to join our team supporting the Program Office for NSWC Corona, Corona Division in Norco, California. The Systems Administrator will work for the senior systems administrator analyzing complex and unique technical support assignments and lead or collaborate with other system administrators, cybersecurity personnel, and program analysts within an agile environment.

This position is 100% onsite.

Responsibilities

The systems administrator administers and supports daily operational requirements of computer network systems including workstation, file servers, and web servers. • Installation of hardware, software, systems upgrades, network accounts, network security, and web page design, interface and updates, and local system design documentation. • Cyber WorkForce (CWF) directives are maintained and up to date with respect to certifications • Maintain, troubleshoot, and implement network security tools including firewalls, anti-virus, and intrusion detection services. • Answering questions about installation, operation, configuration, and customization.• Specific support consists of troubleshooting hardware, software, and network related issues encountered by users.• Software support includes, but not limited to Windows and Linux/Unix operating systems, Microsoft Office Suite, and various specialty engineering and scientific development tools.• Installation of new software releases, system upgrades, evaluation and installation of patches and to resolve software related issues and Information Assurance Vulnerabilities (IAVs).• Assist with the maintenance and monitoring of the organizational mailbox to ensure that all users receive timely support in response to their requests for assistance.• Support also includes working with the organizations Information Systems Security Officer (ISSO) for achieving system accreditation.• Maintain data files and monitors system configuration to ensure data integrity.• Perform system administration tasks across Windows and/or Linux platforms, including patching, user access, and security configuration.• Develop, test, and maintain scripts or small applications to automate system tasks and support operational requirements.• Support integration of new technologies and tools into classified and unclassified environments.• Monitor system performance, availability, and security compliance.• Document system configurations, standard operating procedures, and code.• Collaborate with cybersecurity teams to ensure RMF compliance and implement STIGs.• Provide Tier II support for escalated service tickets and technical issues.• Participate in incident response, change control, and configuration management processes.
Other duties as assigned.

Qualifications

Bachelor’s degree in Computer Science, Information Systems, or related field; or equivalent work experience.• 3–5 years of experience in system administration or software programming within a DoD or federal IT environment.• Proficiency in at least one scripting or programming language (e.g., PowerShell, Bash, Python, or JavaScript).
Security+ certification or equivalent.• Experience with virtualization platforms (VMware, Hyper-V) and system monitoring tools.• Understanding of cybersecurity frameworks, STIGs, and DoD IA policies.• Familiarity with version control systems (e.g., Git) and basic SDLC practices.• Strong problem-solving and communication skills.
U.S. Citizenship and Active DoD Secret clearance (TS/SCI preferred).

SECURITY CLEARANCE REQUIREMENTS: Must currently hold a security clearance at the minimum Secret level.

Physical Demands:• Must be able to lift up to 25 pounds• Must be able to stand and walk for prolonged amounts of time• Must be able to twist, bend and squat periodically

Targeted salary range is $65,000 to $85,000 annually based on qualifications and experience.

Please note that the salary information is a general guideline only. Bowhead considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.

About employer

More about this job

Skills

Microsoft Office
Technical support
Cybersecurity
Documentation
Troubleshoot
Troubleshooting
Microsoft Windows
Linux
UNIX
System administration
Monitor system performance
Regulatory compliance
Incident response
Computer science
Microsoft PowerShell
Bash
Python
JavaScript
Security+
VMware
Control systems
Git
Problem solving
Communication skills
Heavy lifting

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