Senior Network Engineer

Sentinel Technologies

Network Engineer delivering secure network design and implementation services across various environments. Collaborating with project management, IT departments, and managed services teams for integration and performance.

Posted 4/28/2026full-timeDowners Grove • Illinois • 🇺🇸 United StatesSenior💰 $150,000 - $170,000 per yearWebsite

Tech Stack

Tools & technologies

CloudDNSFirewallsOracle

About the role

Key responsibilities & impact

Deliver secure network design and implementation services
Work closely with project management teams, internal IT departments, and managed services teams
Ensure seamless integration, security, and performance of network infrastructure
Contribute to additional projects as they arise

Requirements

What you’ll need

Extensive experience with network design and architecture
CCIE or PCNSE certifications preferred
Experience in network engineering with enterprise environments
Expertise in internet routing protocols and network security concepts
Hands-on experience with Virtual Private Networks (VPNs)
In-depth knowledge of firewall configuration, policies, and rule management
Solid understanding of DNS (zones, records, and troubleshooting)
Experience with SSL and secure communications
Experience with Cisco routers and switches
Hands-on experience with Palo Alto firewalls
Familiarity with F5 load balancers
Exposure to OCI (Oracle Cloud Infrastructure) / Oracle databases
Excellent communication and customer-facing skills
Must have a car and valid driver’s license with proof of vehicle insurance

Benefits

Comp & perks

Medical, Dental, Vision
401K
529
Life Insurance
Income Protection Short and Long-Term Disability
Medical and Child/Elder Care
Flexible Spending Account Plans
Family Planning Benefits
Financial Education
Identity Theft Protection and Assistance
Legal Services
Employee Assistance Program
Two weeks’ vacation
Additional paid time-off for Personal and Sick
Certification and hands-on training
Employee discount for product services and entertainment

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

network designnetwork architecturenetwork engineeringinternet routing protocolsnetwork securityVirtual Private Networks (VPNs)firewall configurationDNSSSLCisco routers and switches

Soft Skills

communicationcustomer-facing skills

Certifications

CCIEPCNSE