Senior Network Security Engineer

Salary: $100,000 - 150,000 per year Requirements:

• We need 8+ years of experience working with Cisco, Palo Alto, and/or Fortinet technologies.
• We require hands-on experience with Cisco routers and switches.
• We need 5+ years of experience designing and implementing large-scale network security solutions.
• CCNP certification or an equivalent higher-level manufacturer certification is preferred.
• Experience with Cisco Security products such as FDT, FMC, AMP, and Umbrella is required.
• Experience with migrations and upgrades across multiple platforms is a plus.
• Familiarity with wireless network implementation using Cisco Wireless LAN Controllers in centralized and converged access environments is a plus.
• Cisco ACI and SD-WAN experience is a plus.
• We require a car for travel between client locations and transporting equipment.
• We require a valid drivers license and proof of vehicle insurance.
• We are only considering candidates who are legally authorized to work in the US without sponsorship.
• We are looking for someone with a strong can-do attitude and an ACE mindset: Attitude, Compassion, and Enthusiasm.

• We design, implement, and support secure network solutions for a range of client environments.
• We work directly with Cisco routers and switches to strengthen and optimize network infrastructure.
• We deploy and manage firewall solutions from Cisco, Palo Alto, and Fortinet.
• We architect and deliver large-scale network security solutions.
• We configure and maintain Cisco Security products including ISE, FDT, FMC, AMP, and Umbrella.
• We perform migrations and upgrades across various network and security platforms.
• We implement wireless networks using Cisco Wireless LAN Controllers in centralized and converged access deployments.
• We work with Cisco ACI and SD-WAN where applicable.
• We provide exceptional customer support and serve as trusted advisors to our clients.

• Architect
• Cloud
• Cisco
• Firewall
• Support
• LAN
• Network
• Security
• VMware
• Phoenix

More:

We are Sentinel Technologies, a growing managed services provider and longtime IT solutions leader based in Downers Grove, Illinois, with support operations across several U.S. locations. Since 1982, we have delivered security, communications, systems and networks, software applications, cloud services, managed services, and staffing solutions, and we work with leading technology partners such as Cisco, Dell, VMware, and Microsoft. We offer a full-time role with remote flexibility when not at client sites, a competitive salary range of $100,000 to $150,000, and a rich benefits package that includes medical, dental, vision, 401K, life insurance, disability coverage, financial wellness resources, legal and identity theft support, employee assistance, paid time off, certification and hands-on training, and employee discounts. We value a creative, entrepreneurial, team-oriented culture and encourage growth through learning and impact. We are an equal opportunity employer and conduct background checks as part of our hiring process.

last updated 33 week of 2026