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From the employer's careers site First seen 9 Nov 2026

Senior Network Security Engineer

GDIT Bethesda, MD Hybrid senior full-time

Salary

$119,000 - $161,000 per year

Apply on GDIT

Description

We are seeking a Senior Network Security Engineer to join our team. As a Senior Network Security Engineer, you will be responsible for the configuration, deployment, and management of our customer's security appliances and infrastructure in a 24x7x365 environment.

Responsibilities:

  • Administration of LAN technologies for Cisco ASA Firewalls
  • Administration of firewalls, including but not limited to Cisco ASA, ACS, RSA, Cisco AnyConnect, Gigamon, Cisco VPN, Palo Alto
  • Assist in troubleshooting and problem solving for a wide variety of client/user LAN/Security related issues
  • Work closely with other IT functional teams to ensure cohesive support and strategies across the IT organization
  • Support the development of project plans and execute as authorized
  • Maintain relationships with key Third-Party software/hardware vendors to provide support to the infrastructure as needed
  • Provide daily support for tickets: service requests, incidents, problems, and tasks
  • Execute tasks to support projects
  • Auditing and Compliance
  • Configuration changes and Code upgrades needed to address vulnerabilities report by internal/external audits
  • Vulnerability mitigation
  • IOS code version bug scrapping with Cisco SME/TAC
  • IOS code version lab testing before implementing in production
  • Quarterly IOS code upgrades
  • Auditing of any newly deployed firewalls to verify compliance
  • 24-hours availability for weekly On-Call rotation with the security team
  • Firewall hardware refreshes including rack and stack

Requirements:

  • BS degree in Computer Science, Information Systems or equivalent
  • Minimum of four years of experience implementing and maintaining Cisco ASA, VPN, ACS, AnyConnect, Gigamon
  • Minimum four years of experience in a Network Security Engineering role
  • Experience with network infrastructure in enterprise datacenter solutions
  • Experience with mid to large scale implementations of Cisco firewalls
  • Ability to obtain a Public Trust

The likely salary range for this position is $119,000 - $161,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

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Skills

Required

  • Cisco ASA
  • VPN
  • ACS
  • AnyConnect
  • Gigamon
  • Palo Alto
  • Cisco Firewall
  • Cisco VPN
  • Palo Alto Networks Next Generation Firewalls (NGFW)
  • Remote Access VPN

Ready to apply?

You apply with the employer directly. Their original posting is here: https://gdit.wd5.myworkdayjobs.com/en-US/External_Career_Site/job/USA-MD-Bethesda/Senior-Network-Security-Engineer_RQ231912-1

Apply on GDIT