Network Systems Engineer

Network Systems Engineer
Location: Onsite in Rancho Cucamonga, CA
Schedule: Monday-Friday, 6:30 AM - 3:30 PM (Saturday availability required for major projects)
Employment Type: Full-Time

About the Opportunity
LHH Technology is seeking a talented Network Systems Engineer to join a close-knit, high-performing IT team supporting enterprise infrastructure operations. If you are passionate about hands-on network design, implementation, and security-and thrive in a fast-paced, collaborative setting-this is an opportunity to make a meaningful impact.

Key Responsibilities
Network Design & Architecture

• Design and deploy enterprise-grade network infrastructure
• Define scalable architecture standards to support long-term growth
• Research and evaluate emerging technologies for performance/security gains

Network Administration

• Manage routers, switches, VPNs, and firewalls
• Oversee day-to-day network performance and availability
• Lead capacity planning and coordinate upgrades

Network Security

• Develop and implement security protocols and controls
• Conduct audits and vulnerability assessments
• Respond to incidents and lead post-mortem/root cause analysis

Troubleshooting & Tier III Support

• Resolve advanced technical issues affecting critical systems
• Partner with business units and external vendors for support escalations
• Ensure minimal downtime across infrastructure

Documentation & Reporting

• Maintain updated documentation and network diagrams
• Create system performance and capacity reports

Mentorship & Collaboration

• Mentor junior engineers and IT support staff
• Align IT initiatives with strategic business goals
• Contribute to cross-functional infrastructure planning

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field
• Minimum 5 years of experience in network systems or administration
• Strong Cisco experience (Nexus, Meraki)
• Fortinet firewall experience required
• Active Directory: capable of building from scratch
• ERP experience strongly preferred (SAGE 100 ideal)
• Preferred certifications: CCNP, Fortinet NSE, CompTIA Network+
• Familiar with SolarWinds, Wireshark, and cloud platforms (AWS/Azure a plus)
• Strong written and verbal communication skills
• Bonus: Autodesk Vault/Inventor knowledge

Compensation & Benefits

• Salary: $110,000 - $150,000 (DOE)
• Benefits: Medical, Dental, Vision, Voluntary Benefits, and 401(k) with Company Match

Work Modality: Onsite (Rancho Cucamonga, CA)

Interview Process: 2 Steps
Apply Today

If you're a proactive engineer ready to take ownership of a network environment and contribute to a stable, growing team-LHH Technology wants to hear from you. Submit your resume to

Pay Details: $110,000.00 to $150,000.00 per year

Search managed by: Loren Trugerro

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The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance