Network Security Engineer, Senior

Us-Il-Downers Grovesenior
Network Security EngineerCybersecurity
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Quick Summary

Key Responsibilities

Design, implement, and support secure network solutions for a variety of client environments. Work hands-on with Cisco routers and switches to optimize and secure network infrastructure.

Technical Tools
Network Security EngineerCybersecurity

Responsibilities

~2 min read

Sentinel Technologies is searching for a passionate and experienced Senior Network Security Engineer who thrives in a fast-paced, solutions-driven environment. As a Senior Network Security Engineer you will design, implement, and configure secure network solutions for mid-to-enterprise-level clients using cutting-edge technologies. Your commitment to customer satisfaction and highly available and secure solutions will position you for success. Sentinel a growing MSP recognized by industry leaders across the country. Sentinel excels with the ability to support our teams professionally across our organization to be successful and at the forefront of technologies. This is a full-time position that can work remote when not needed at client locations reporting to our corporate headquarters in Downers Grove, Illinois.

  • →Design, implement, and support secure network solutions for a variety of client environments.
  • →Work hands-on with Cisco routers and switches to optimize and secure network infrastructure.
  • →Deploy and manage Cisco, Palo Alto, and Fortinet firewall solutions.
  • →Architect and implement large-scale network security solutions (3+ years of experience required).
  • →Configure and maintain Cisco Security products such as ISE, FDT, FMC, AMP, and Umbrella.
  • →Perform migrations and upgrades across various network and security platforms.
  • →Implement wireless networks using Cisco Wireless LAN controllers in both centralized and converged access deployments.
  • →Work with Cisco ACI and SD-WAN (experience in these areas is a plus).
  • →Provide exceptional customer support and act as a trusted advisor to clients.

Requirements

~2 min read
  • 8+ years of experience working with Cisco, Palo Alto, and/or Fortinet solutions
  • Hands-on experience with Cisco routers and switches is required
  • 5+ years of experience designing and implementing large scale network security solutions
  • CCNP Certification or equivalent manufacture certification or higher is preferred
  • Experience with Cisco Security products such as FDT, FMC, AMP, Umbrella
  • Experience in performing migrations and upgrades on various platforms is a plus
  • Familiar implementing wireless networks with Cisco wireless LAN controllers using both traditional centralized deployments as well as converged access is a plus
  • Cisco ACI and SD WAN experience is a plus
  • The candidate must have a car, as this position requires travel between location and the transportation of equipment
  • A valid driver’s license and proof of vehicle insurance will be required
  • Legally authorized to work in the US without sponsorship
  • Must demonstrate a “can-do” attitude

 

We focus on candidates that display our “ACE” factor – Attitude, Compassion, and Enthusiasm to deliver quality solutions with exceptional customer service.Compensation: $100,000 - $150,000

 

What you get:We offer an energetic work environment with many corporate culture amenities, competitive salary, and rich benefit plan including: 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, and employee discount for product services and entertainment.

 

 

 

Sentinel delivers solutions that can efficiently address a range of IT needs – from security, to communications, to systems & networks, to software applications, to cloud and managed services; all of which include our staffing solutions for our clients. Since 1982, Sentinel has grown from providing technology maintenance services to our current standing as one of the leading IT services and solutions provider in the US. We have aligned with many of today’s global technology leaders including Cisco, Dell, VMware and Microsoft. Sentinel services customers both nationally and internationally with primary support operating centers in Downers Grove (HQ), Chicago, and Springfield, IL; Phoenix, AZ.; Lansing, and Grand Rapids, MI; Milwaukee, WI; and Denver, CO.

 

If you are MOTIVATED… you can make IT happen at Sentinel. Our commitment to our employees is to create a work environment that encourages creativity, an entrepreneurial spirit, fosters growth through certification and hands-on training, and values a team-oriented culture with rewards based on impact!

 

If you share our passion about what technology can do and want to be part of a top workplace environment – we’d like to have you join our team.  Learn more at www.sentinel.com/careers.

 

As part of Sentinel's employment process, candidates will be required to complete a background check. Only those who meet the minimum requirements will be contacted. No phone calls please.

 

Sentinel is proud to be an equal opportunity employer including disability and veterans. In accordance with Title VII and state regulations, all qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, marital status, pregnancy, genetics, disability, military, veteran status or any other basis protected by law.

 

If you are an individual with a disability and need assistance in applying for a position, please contact SentinelHR1@sentinel.com.

 

JFNDNP

Location & Eligibility

Where is the job
Us-Il-Downers Grove
On-site at the office
Who can apply
Same as job location

Listing Details

Posted
August 7, 2026
First seen
September 26, 2026
Last seen
September 26, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
18%
Scored at
September 26, 2026

Signal breakdown

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careers-sentinelNetwork Security Engineer, Senior