Senior Network Security Engineer

Full Time
Chicago, Illinois
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$100,000.00 - $ 250,000.00

Our client is seeking an exceptional Senior Network Security Engineer to work in their Chicago office. The ideal candidate should have an understanding of wireless networking and associated security protocols. You will be expected to be continuously evaluating, designing and implementing security solutions to improve the confidentiality, integrity and/or availability of the firm’s intellectual property and systems.


  • Firewalls
  • Proxies
  • Remote Access VPNs
  • Two-Factor Authentication
  • Network Based Anomaly Detection Systems
  • Vulnerability Management Solutions
  • Threat Intelligence Solutions
  • Threat Emulation Solutions
  • SIEM Solutions
  • Wireless Networking
  • Assist in the creation or modification of security policies and procedures as needed.
  • Troubleshooting issues down to the packet decode level if necessary.
  • Member of the firm’s cyber incident response team.
  • Periodic after hours and weekend support is required.


  • 5-7 years of network security experience.  CISSP is highly desirable.
  • Strong understanding of both security and network fundamentals and protocols.
  • Demonstrated experience administering a market leading SIEM solution.
  • Understanding of proxy solutions and protocols, including explicit and transparent modes of operation, various authentication mechanisms, etc.
  • In-depth knowledge of Windows and Linux security best practices.
  • Proficient in Python or Perl and basic shell scripting.
  • Proficient with Cisco IOS commands.
  • Excellent communications skills.
  • Strong team player, but can work independently when required.
  • Financial Services industry experience is a plus.

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NJF Global Holdings Ltd

NJF Global Holdings is a privately owned portfolio of recruitment and executive search companies. The constituent companies cover a multitude of industry sectors and offer services across a diverse spectrum of geographical locations. 

Our objective is to continue to diversify our Portfolio by bringing our services to new sectors, where we see both long-term sustainability and enough market liquidity, to contribute a significant increase in revenue to our overall portfolio, over the medium and long term. 

The Group’s headquarters are based in the UK, with offices in New York, Chicago and Nottingham.
IT, Finance, Technology, Financial Services, Commodities, Quantitative, Risk, Energy, Global Markets, Social Media, Gaming, Pharmaceutical, Biotechnology, Medical Devices Industry, Global, International Jobs, Asia, USA, Europe
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Company Industry: Staffing and Recruiting
Company Type: Privately Held
Company Size: 51 - 200