Job Description

ManTech is seeking a talented and experienced Network Engineer with a specialized focus on Firewalls, particularly with expertise in CISCO, Palo Alto, and Juniper network devices and associated management software to join our technology-based program supporting a key Government customer in Herndon, VA . The ideal candidate will have a deep understanding of network security principles, excellent problem-solving skills, and a proactive approach to maintaining and optimizing firewall infrastructure. 

 

Duties, Tasks & Responsibilities:

• Design, implement, and manage firewall solutions utilizing CISCO, Palo Alto, and Juniper network devices 
• Perform configuration, maintenance, and troubleshooting of firewall policies and rules 
• Monitor network traffic for potential security threats and proactively address vulnerabilities 
• Collaborate with cross-functional teams to ensure network security standards align with business objectives 
• Stay up-to-date with the latest industry trends and best practices in network security and firewall technologies 
• Provide technical support and guidance to internal teams and clients on firewall-related issues 
• Participate in the evaluation and selection of new firewall technologies and vendors 
  
   

Basic Qualifications:

• Bachelor's or Master’s Degree in a relevant Information Technology, Computer Science, Systems Engineer field or similar
• 11+ years relevant Network Engineering/Information Technology experience
• Ability to translate customer requirements into enterprise network solutions 
• Proven experience as a Network Engineer with a focus on firewall technologies 
• Strong proficiency with CISCO firewall platforms 
• In-depth knowledge of network protocols, TCP/IP stack, and OSI model 
• Experience with firewall management software such as Cisco FTD and Palo Alto Panorama 
• Excellent communication and interpersonal skills 
• Ability to work independently and collaboratively in a fast-paced environment 
  
   

Preferred Qualifications:

• Experience with a wide variety of network technologies and solutions architectures is a plus 
• Broad understanding of technical principles, theories and concepts in the networking field 
• Knowledge of state-of-the-art systems engineering principles and network design concepts 
• Cloud Service Provider and hybrid cloud experience (extending on-premise networks to cloud providers such as AWS, Azure, Oracle and Google) 
• Strong proficiency with Palo Alto and Juniper firewall platforms is a plus 
• Industry certifications such as CCNA Security, CCNP Security, Palo Alto Networks Certified Network Security Engineer (PCNSE), or similar industry certifications are preferred ​
  
   

Security Clearance Required

• An active TS/SCI with Polygraph.
  
   

Physical Requirements:

• Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer.
• Occasionally move about inside the office to access file cabinets, office machinery, etc.
• Constantly position self to maintain computers in the lab, including under desks and in server closets.

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