Top 18 Senior systems administrator Jobs in Ontario, Ca

Sr Principal Network Administrator - Secret
Northrop Grumman —Azusa, CA
- $129,300 - $193,900 a year
- Overtime
- 6 years
- System design
- Windows
- Paid holidays
- Disability insurance
14d
Senior System Administrator
Penhall Company —Anaheim, CA
- Full-time
- 5 years
- Office
- Bachelor's degree
Senior Systems Administrator
Quantum Electronic Payments —Anaheim, CA
- $85,000 - $105,000 a year
- Full-time
- 5 years
- Office
- Microsoft Office
- Profit sharing
- Health insurance
Quick Apply
Senior IT Systems Engineer
Credit Union of Southern California —Anaheim, CA
- $126,667 - $188,240 a year
- Weekends as needed
- Hybrid work
- System design
- Research
- Office
- Health insurance
Sr Systems Engineer, AI-Enabled Service Delivery (MSP - Hybrid)
ModernIT —La Verne, CA
- $110,000 - $130,000 a year
- Full-time
- Hybrid work
- 6 years
- Office
- Mentoring
- Commuter assistance
- Health savings account
Quick Apply
4d
Senior Physical Security Systems Engineer
In-N-Out —San Dimas, CA
- $130,000 - $160,000 a year
- Full-time
- Computer Science
- 5 years
- Engineering
- Profit sharing
- Health insurance
Senior Network Administrator
SchoolsFirst FCU —Tustin, CA
- $42.41 - $63.62 an hour
- Full-time
- Hybrid work
- Office
- 3 years
- High school diploma or GED
4d
Network Administrator Sr.
Provident Savings Bank, FSB —Riverside, CA
- Weekends as needed
- Azure
- Customer service
- Bachelor of Science
7d
Senior System Administrator (Temp)
Panda Restaurant Group —Rosemead, CA
- $43.26 - $66.82 an hour
- Temporary
- Hybrid work
- Hospitality
- ERP systems
- Office
- AD&D insurance
- Disability insurance
Quick Apply
Senior Systems Engineer
Prescient Edge Federal —Riverside, CA
- Full-time
- Microsoft Excel
- Microsoft Outlook
- Computer Science
- Health insurance
- Dental insurance
Sr Engineer, Business Systems
Accurate Background —Irvine, CA
- $88,000 - $110,000 a year
- Full-time
- Background check
- 5 years
- System design
- Health insurance
- Dental insurance
Quick Apply
Senior Linux Systems Engineer, Connected Warfare
Anduril Industries —Anaheim, CA
- $170,000 - $210,000 a year
- Email
- 7 years
- System design
- Office
Quick Apply
System Engineer III, Sr. Windows/Linux/VMWare/Data Center
FOOTHILL COMPUTERS —Fontana, CA
- On call
- Customer service
- System design
- Senior level
Senior Admin & IT Coordinator - Immigration
CAIR LA —Anaheim, CA
- $34 - $38 an hour
- Weekends as needed
- Hybrid work
- Mid-level
- Administrative experience
- Bachelor's degree
- Health insurance
- Dental insurance
Quick Apply

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Sr Principal Network Administrator - Secret

Northrop Grumman -
Azusa, CA

Apply Now

Job Details

Full-time
$129,300 - $193,900 a year
14 days ago

Benefits

Paid holidays
Disability insurance
Health insurance
Paid time off
401(k) matching

Qualifications

Network topology design
System administration
Hardware maintenance
System design
Windows
Router implementation
System design for system development
Hardware support
DoD 8570
Regulatory Frameworks (Architecture security)
Network security appliance implementation
TS/SCI with Polygraph
IAT
Network infrastructure management
Telecommunications data network configuration
IAT Level II

Full Job Description

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 10% of the Time

Description

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We’re looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career.

The Northrop Grumman Classified Solutions CIDO team is seeking a Sr. Principal Network Communications - Senior Network Admin to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our Azusa, CA location.

The responsibilities of this role include, but are not limited to, the following:

Perform Sr. Network Communications activities in support of classified government contracts.
Define and execute long-term network architecture roadmaps, such as SDWAN, ZeroTrust, and cloud-enabled networking, ensuring alignment with enterprise security and compliance requirements.
Lead the design, integration, and implementation of large-scale, multidomain networks supporting classified missions, and oversee network migrations and cyber resilience initiatives.
Serve as a senior technical liaison to government customers and internal leadership, negotiating requirements, delivering status briefings, and participating in external technical forums, proposals, and procurement discussions.
Author, maintain, and enforce enterprise-wide network standards, policies, and security frameworks; regularly audit compliance and champion continuous improvement initiatives.
Provide advanced monitoring, analysis, and planning for network systems, coordinating third-party maintenance as needed and supporting environments through ticketing systems (e.g., ServiceNow, JIRA).
Deliver third-level technical support for complex network, hardware, software, and telecommunications issues
Develop innovative technical solutions to complex problems, support project designs, clarify requirements, and ensure solutions adhere to established standards.
Raise issues requiring management attention and measure performance against KPIs, implementing corrective actions to exceed operational standards.
Provide senior-level technical expertise by mentoring junior and experienced team members, fostering their professional growth and enhancing team capabilities.
Lifts and moves equipment up to 50 pounds.
Work after hours, and weekends, as needed.

Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site.

Basic Qualifications:

Master's Degree with 6 years of relevant technical experience; OR a Bachelor's Degree with 8 years of relevant technical experience; OR an Associate's Degree with 10 years of relevant technical experience; OR a High School Diploma (or equivalent) with 12 years of relevant technical experience is required
Experience designing and maintaining complex LAN/WAN based networks to include analysis, enhancements of routers, switches, and firewalls
Candidates must meet the U.S. Government 8140 requirements (8570 equivalent) for a Linux/Windows Systems Administrator – IAT level II certification at a minimum (examples: Security+ CE, CND, CCNA Security, SSCP, GICSP, GSEC, CCISO)
Candidates must have a current U.S. Government Secret level security clearance (at a minimum) in order to be considered
Must have the ability to obtain and maintain a Top Secret level security clearance as a condition of continued employment

Preferred Qualifications:

Bachelor’s degree Network Engineering
Experience supporting Video Teleconferencing (VTCs), deploying audio/visual technologies in classified environments
Active Secret, Top Secret, SCI, SAP/SAR access, or Polygraph
Security+ CE certification
Experience supporting Cisco Call Managers or other similar technologies
Experience designing, implementing, and managing largescale, multidomain network architectures; expertise in advanced routing, security, and mission critical systems
Experience with configuring TACLANES, and/or encryption solutions
Experience with Assessment & Authorization processes
Experience troubleshooting network procedures and best practices; experience with network challenges associated with systems integration, including COTS integration, capacity analysis and system architecture design
Evidence of published technical papers, patents, or internal knowledge‑sharing contributions
Top Secret clearance

We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. At Northrop Grumman, we are on the cutting edge of innovation. Our diverse portfolio of programs means there are endless paths to cultivate your career. We also offer exceptional benefits/healthcare, a 9/80 work schedule, and a great 401k matching program. Come join us!

Primary Level Salary Range: $129,300.00 - $193,900.00

The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.

Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.

The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Apply Now

Refine Your Search

senior systems administrator jobs in ontario, ca

Sr Principal Network Administrator - Secret

Senior System Administrator

Senior Systems Administrator

Senior IT Systems Engineer

Sr Systems Engineer, AI-Enabled Service Delivery (MSP - Hybrid)

Senior Physical Security Systems Engineer

Senior Network Administrator

Network Administrator Sr.

Senior System Administrator (Temp)

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Sr Engineer, Business Systems

Senior Linux Systems Engineer, Connected Warfare

System Engineer III, Sr. Windows/Linux/VMWare/Data Center

Senior Admin & IT Coordinator - Immigration

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