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Job #: R-00005971
Location: Bethesda, MD
Category: Network Administration and Ops
Schedule (FT/PT): Full time
Travel Required: No
Shift: Day
Potential for Telework: No
Clearance Required: Public Trust
Referral Eligibility: Eligible
Group: Health

Job Description:

The Government Health and Safety Solutions Operation is seeking a Sr Network Engineer in Bethesda, MD.

  • Provide network administration, security, configuration management, and maintenance of F5 Big-IP, firewalls AWS VPC's, and switching architecture Perform F5 Big-IP to include 200+ virtual servers, 400+ pools and 700+ URL's
  • Coordinate and implement F5 Big-IP changes for multiple teams, proactively monitor network equipment, services, and applications
  • Troubleshoot network-related issues, isolate and diagnose errors and provide recommendations to optimize network performance and security
  • Manage F5 Big-IP iRules, data-groups, persistence concepts and intelligent monitoring
  • Maintain Brocade switches, manage SSL certificates and appropriation
  • Develop technical documentation and troubleshooting guides
  • Collaborate closely with other teams (e.g. Network, Storage, System Administrators, and Database) to provide expert consultation and technical administration for projects, initiatives, and general operations in order to ensure system performance, availability, and security across platforms
  • Manage Cisco ASA firewall ACL management and configuration
  • Participate in a 24x7 365 days a year on-call rotation



Bachelor's degree or equivalent work experience

Networking certifications (F5-CA,F5-CSE, CCNA)


8+ years of relevant work experience

Expert knowledge of BIG-IP F5 solution

Expert level experience working in AWS (VPC, VPN Gateways, EC2 Instances, route-tables)

Advanced experience in TCP/IP, IP routing, data center switching and load balancing focusing on Cisco

and Brocade

Advanced experience in infrastructure design related to network, data center and storage equipment

Working knowledge of knowledge of Cisco routing and switching principles

Expert level working knowledge in networking Layer 1 to Layer 3 in OSI model

Experience working with scripting languages such as Ruby, Python or similar dynamic language

Technical writing skills to develop and maintain security documentation

Excellent organizational, analytical and problem-solving abilities

Knowledge of Grants Management and Health Care related support activities, processes, and

regulations are preferred

Requires US Citizen or Green Card Holder with the ability to obtain a Public Trust


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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