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Job #: R-00004490
Location: Reston, VA
Category: Cyber Security
Schedule (FT/PT): Full time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance Required: None
Referral Eligibility: Eligible
Group: Corporate

Job Description:

Leidos Corporate Group has an immediate opening for a Network Security Engineer to join our Cyber Information Security team. In this role, you will be responsible for the design, documentation, deployment, and maintenance of enterprise network security solutions such as firewalls, tap aggregation, packet capture, content filtering and cloud security tools. We're looking for a candidate who can support this role from one of our following locations: Orlando - FL, Reston - VA, or Gaithersburg - MD.

Primary Responsibilities:

You will join a team of other cybersecurity engineers and play a key role in the overall network security system design for large scale IP networks with over 40K nodes including Internet PoP security and DMZ segmentation. The role will be split between tasking associated with maintaining and enhancing the standing security systems and working on projects to either deploy new security capabilities or to provide security engineering services to non-security specific IT efforts. Maintenance tasking will include helping to ensure firewall, content filtering, IPS and cloud security tool policies are being updated in accordance with established standards, capacity planning and handling engineering level problems (problem management).

Additionally, you will also work with the Network Security Operations team to ensure proper operational management of enterprise network security systems. There is no on-call rotation, but will rarely be required to work nights and/or weekends for escalation support or to meet project requirements. Initially, this position will be working on a refresh and re-architecture project for our 300+ locations. Travel in this position is rare, and typically no more than a few weeks a year.

Required Qualifications:
  • Bachelor's Degree and 8+ years of relevant experience, including 4+ years of experience in an enterprise security or infrastructure engineering role. Additional years of relevant experience, training, and/or professional certifications will be considered in lieu of Bachelor's degree
  • US citizenship is required and eligible for federal security clearance
  • Experience designing, deploying and maintaining enterprise class firewall solutions (additional experience, education or training may be considered).
  • Experience designing, deploying and maintaining enterprise class forward proxy and content filtering solutions
  • Strong knowledge of the OSI 7-layer model
  • Strong knowledge of TCP/IP and common application layer protocols
  • Strong communication skills; person in this role must be able to successfully communicate with management personnel, technical personnel and third parties

Preferred Qualifications:
  • Experience with common enterprise firewall vendors such as Check Point, Palo Alto, Juniper or Cisco/Sourcefire
  • Experience with common enterprise class packet capture solutions such as Security Analytics and Netwitness
  • Experience with common enterprise forward proxies such as Zscaler, Symantec/BlueCoat, ForcePoint/WebSense, McAfee or F5
  • Experience with a firewall policy management tool such as Tufin, Algosec or Firemon
  • Experience in Linux system administration desired
  • Experience in programming and/or scripting desired
  • Experience in configuration management tools such as Ansible, Puppet, or Chef
  • Knowledge of Microsoft Active Directory desired
  • Experience with cloud IaaS solutions such as Microsoft Azure or Amazon AWS
  • Possess one of the following certifications: Palo Alto Certifications, Juniper Certification, Cisco Certifications (CCNA, CCNP, CCIE), Check Point Certifications, SANS Certifications (GIAC, etc), RedHat Certifications


Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world’s toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company’s 31,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.17 billion for the fiscal year ended December 29, 2017. (NYSE: LDOS) All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

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