Senior Network Engineer & Infrastructure Mentor

REJIS Commission; St. Louis (MO); On-site; USD 79,000 - 96,000; Full time

Job summary

REJIS Commission seeks an experienced Network Engineer Specialist to design, deploy, and secure complex WAN/LAN networks for public sector clients in the St. Louis area. You’ll lead critical infrastructure initiatives, troubleshoot advanced issues, and help shape technology decisions.

You’ll mentor other IT staff, collaborate with vendors and clients, ensure CJIS and MULES compliance, and evaluate emerging network technologies to deliver practical, cost-effective solutions.

Qualifications

• Associate’s degree required with 10–12 years of network experience or equivalent
• Strong knowledge of WAN/LAN networking, infrastructure, and security
• Ability to troubleshoot complex issues and work independently
• Experience guiding, mentoring, or leading other IT professionals
• Strong problem-solving, communication, and technical documentation skills
• Ability to manage multiple projects in a fast-paced environment
• Willingness to travel to client locations as needed
• Valid driver’s license and automobile insurance

Responsibilities

• Lead installation, maintenance, troubleshooting, and security of complex WAN/LAN networks and infrastructure
• Monitor network health and proactively resolve issues before they escalate
• Serve as a technical expert and mentor to Network Engineers and IT staff
• Research and evaluate new technologies and determine suitable solutions for REJIS and clients
• Lead or support network/infrastructure projects, technology assessments, and client needs assessments
• Strengthen network security and maintain CJIS/MULES compliance
• Collaborate with vendors, clients, management, and internal teams to develop practical technology solutions
• Contribute to budgeting, vendor evaluations, and infrastructure planning

Skills

WAN/LAN networking

Network security

Troubleshooting

Mentoring

Technical documentation

Project management

Education

Associate’s degree in CIS/MIS or related field

Bachelor’s degree preferred

Job description

REJIS Commission seeks an experienced Network Engineer Specialist to design, deploy, and secure complex WAN/LAN networks for public sector clients in the St. Louis area. You’ll lead critical infrastructure initiatives, troubleshoot advanced issues, and help shape technology decisions.

You’ll mentor other IT staff, collaborate with vendors and clients, ensure CJIS and MULES compliance, and evaluate emerging network technologies to deliver practical, cost-effective solutions.