Top 104 Network security engineer Jobs in Ontario Ca

Network Support Engineer II
Brea Networks, LLC —Brea, CA
- From $75,000 a year
- Full-time
- Background check
- 5 years
- In-person
- Health insurance
- Dental insurance
Quick Apply
Network/Infrastructure Administrator
Acorn Engineering —City of Industry, CA
- $68,000 - $70,000 a year
- Weekends as needed
- Azure
- Software troubleshooting
- Mid-level
- Health savings account
- Health insurance
Quick Apply
Network Infrastructure Engineer
DUNLOP TIRES NORTH AMERICA INC —Rancho Cucamonga, CA
- $118,450 - $169,950 a year
- Hybrid work
- 7 years
- Azure
- Computer Science
14d
Senior Network Engineer (Onsite)
San Antonio Regional Hospital —Upland, CA
- $41.30 - $61.96 an hour
- Full-time
- Computer Science
- 5 years
- Bachelor's degree
IT Cloud Systems Engineer II
Ajinomoto Foods North America —Ontario, CA
- $92,000 - $113,000 a year
- Full-time
- Computer Science
- System design
- Research
1d
Infrastructure Administrator I
HR Green —Corona, CA
- $74,000 - $115,000 a year
- On call
- Mid-level
- Office
- Windows
- Health insurance
- Dental insurance
Quick Apply
IT Enterprise Applications Analyst
Citizens Business Bank —Rancho Cucamonga, CA
- $73,770 - $103,278 a year
- Full-time
- Computer literacy
- Basic math
- Mid-level
Sr. Network Engineer (Network Services)
Ledgent Technology —La Mirada, CA
- $150,000 - $160,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Mentoring
Quick Apply
1d
Network Engineer
Saalex —Corona, CA
- $85,000 - $109,000 a year
- Full-time
- Hybrid work
- 7 years
- System design
- Office
- AD&D insurance
- Disability insurance
Quick Apply
IT Support Engineer
ATHENA AG INC —Riverside, CA
- $30 - $36 an hour
- Full-time
- Google Workspace
- Mid-level
- Office
Quick Apply
Network Operations Engineer (IT Communications Analyst III)
County of Riverside —Riverside, CA
- $94,703.30 - $144,163.61 a year
- On call
- Background check
- Computer Science
- Research
- Paid holidays
- Disability insurance
Network Engineer
Bowhead —Corona, CA
- $100,000 - $175,000 a year
- Full-time
- Ability to walk for extended periods
- System design
- Master's degree
14d
Network Engineer
Hot Topic & BoxLunch —City of Industry, CA
- $38.46 - $48.07 an hour
- Full-time
- Hybrid work
- Computer science
- Oracle
- Computer Science
Technology Administrator III
FOOTHILL COMPUTERS —Fontana, CA
- Research
- Senior level
IT Field Systems Administrator
Rize Beyond Banking —Irwindale, CA
- $33 - $42 an hour
- Full-time
- Hybrid work
- Mid-level
- Office
- Windows
Quick Apply
Onsite IT Engineer
Nexus Technologies LLC —Riverside, CA
- Full-time
- Hospitality
- Azure
- Mid-level
- Paid holidays
- Disability insurance
Computer Hardware Engineer
A-L-L Magnetics —Anaheim, CA
- Email
- Computer science
- Computer Science
- Bachelor of Science
Onsite IT Engineer
NexusTek —Riverside, CA
- Full-time
- Hospitality
- Azure
- Mid-level
- Paid holidays
- Disability insurance
Civil Roadway Engineer I
Parsons —Corona, CA
- $63,600 - $111,300 a year
- Hybrid work
- Mid-level
- Office
- 3 years
- Wellness program
- Paid holidays
15h
Senior IT Network and Security Administrator Engineer
Arlon Graphics LLC —Placentia, CA
- $125,000 - $135,000 a year
- Weekends as needed
- Computer science
- 7 years
- Microsoft Outlook
Quick Apply
14d

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Network Support Engineer II

Brea Networks, LLC
Brea, CA

Quick Apply

Job Details

Full-time
From $75,000 a year

Benefits

Health insurance
Dental insurance
Paid time off
Vision insurance
401(k) matching
Life insurance

Qualifications

Technical documentation
Public Cloud
Incident Escalation
Network infrastructure
Cloud service support
Attention to detail
Customer relationship management (CRM) systems (technically supported)
Problem-solving
CompTIA Network+
IT support
Network engineering
CompTIA Security+
Escalation handling

Full Job Description

About the Role

We’re looking for a Network Support Engineer II who can handle Level 1-3 support tickets, escalations, and troubleshooting across network, cloud, and security environments.

This role is primarily support-focused, but requires the ability to:

Understand how systems are designed
Make sound technical decisions during troubleshooting
Maintain compliance with security frameworks (CMMC, NIST)

This is not entry-level support. You will be expected to resolve complex issues, communicate directly with clients, and ensure all work is fully documented and audit-ready.

What You’ll Do

Advanced Support & Troubleshooting

Resolve Level 1, 2 and Level 3 support tickets across:
Networking (connectivity, routing, VPNs, VLANs)
Microsoft 365 environments
Azure / cloud systems (basic to intermediate)
Identity & access issues (Entra ID, MFA, permissions)
Troubleshoot issues end-to-end and implement permanent fixes, not workarounds
Act as an escalation point for Level 1 technicians

Client Communication

Communicate directly with clients via phone and email
Clearly explain issues, resolutions, and timelines
Set expectations and maintain professionalism at all times

Ticketing & Documentation (Critical)

Fully document all work performed in tickets, including:
Root cause
Troubleshooting steps
Resolution details
Ensure documentation is clear, complete, and audit-ready
Follow and contribute to SOPs and runbooks
Maintain accurate system and configuration documentation

Compliance & Security Awareness

Troubleshoot and resolve issues while maintaining compliance with:
CMMC 2
NIST 800-171
Follow secure practices (least privilege, access control, etc.)
Understand how changes impact compliance and security posture

Light Engineering / Implementation

Assist with small implementations and changes, such as:
Firewall rule updates
User access configurations
Network adjustments
Follow established standards when making changes
Escalate design decisions to senior engineers when needed

What You Bring

Required

5-7 years experience in IT support, networking, or MSP environments
Strong troubleshooting skills across:
Networking (TCP/IP, DNS, DHCP, VPNs)
Microsoft 365
Basic Azure / cloud environments
Experience handling escalated or complex support issues
Strong written and verbal communication skills
High attention to detail in documentation

Preferred

Experience in MSP environments
Exposure to compliance frameworks (CMMC, NIST, HIPAA, etc.)
Experience with firewalls (Fortinet, Meraki, SonicWall)
Certifications:
Network+, Security+, or equivalent
Microsoft certifications

What Success Looks Like

You consistently resolve complex tickets without escalation
Your tickets are fully documented and audit-ready every time
Clients trust your communication and clarity
You follow processes but also understand why they exist
You escalate appropriately

What This Role Is NOT

Not entry-level / help desk only
Not a pure architect or design-heavy engineering role
Not a “close tickets fast” position — quality and documentation matter as much as speed

Why Join Us

Work in a compliance-driven, security-focused environment
Gain exposure to regulated environments (CMMC / DIB clients)
Clear path to Lead Network Engineer or Cybersecurity roles
High accountability, high growth environment

Additional Requirements

Ability to pass background and drug check
Comfortable working with regulated and sensitive environments
Strong adherence to process, documentation, and security standards

Pay: From $75,000.00 per year

Benefits:

401(k) matching
Dental insurance
Health insurance
Life insurance
Paid time off
Vision insurance

Application Question(s):

Please complete the required assessment before we move forward in the hiring process: https://scorecard.cmmccompliance.us/why-work-for-brea-networks

. Candidates who do not complete this assessment will not be considered for an interview.

Experience:

IT support: 7 years (Required)
Network engineering: 7 years (Required)

Work Location: In person

Quick Apply

Refine Your Search

network security engineer jobs in ontario ca

Network Support Engineer II

Network/Infrastructure Administrator

Network Infrastructure Engineer

Senior Network Engineer (Onsite)

IT Cloud Systems Engineer II

Infrastructure Administrator I

IT Enterprise Applications Analyst

Sr. Network Engineer (Network Services)

Network Engineer

IT Support Engineer

Network Operations Engineer (IT Communications Analyst III)

Network Engineer

Network Engineer

Technology Administrator III

IT Field Systems Administrator

Onsite IT Engineer

Computer Hardware Engineer

Onsite IT Engineer

Civil Roadway Engineer I

Senior IT Network and Security Administrator Engineer

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