Network Engineer


The Johns Hopkins University Applied Physics Laboratory (APL), a national leader in scientific research and development, located midway between Baltimore and Washington, DC is seeking a Network Engineer.

Job Summary: Develop routing and switching capabilities in support of DoD and Intelligence Community sponsors. Contribute networking expertise to the ideation, development and deployment of cyber capabilities for projects of national significance.


  • Assist in the design, development, testing, and fielding of routing and switching communications infrastructures supporting various sponsor applications and systems. (50%)
  • Perform network performance characterization and optimization via lab implementations as well as modeling and simulation (25%)
  • Assisting the development and evaluation of cyber capabilities through the exploitation of networking technologies (25%)

Note: This job summary and listing of duties is for the purpose of describing the position and its essential functions at time of hire and may change over time.

Required Qualifications:

  • B.S. degree in Computer Science or Electrical Engineering or a closely related discipline.
  • At least 5 years of experience developing wired and wireless networking solutions.
  • Experience designing, configuring, and evaluating computer networks including IPv4 and IPv6 addressing plans, routers, switches, and firewalls.
  • Cisco Certified Network Associate (CCNA).
  • Experience with data link, network, and transport layer protocols.
  • Experience with IP multicast and multicast routing.
  • Experience with routing protocols including OSPF and BGP.
  • Experience with some of the following: Unix/Linux, WireShark, Cisco IOS, and JUNOS. Active DoD secret clearance.

Desired Qualifications:

  • M.S. degree in Computer Science, Electrical Engineering, or a closely related discipline.
  • 10 years of experience as per above.
  • Demonstrated ability and/or interest in leading projects within the scope of the required qualifications.
  • Cisco Certified Network Professional (CCNP) or Cisco Certified Internetwork Expert (CCIE).
  • Experience with Software Defined Networking and OpenFlow.
  • Experience with modeling networked communications systems.
  • Expertise with the following: C , Python, MATLAB, SNMP.
  • Knowledge of open-source vulnerabilities and exploitation tools, and network security tools.
  • Familiarity with commercial WPAN, WLAN, WMAN, and cellular wireless technology standards.
  • Knowledge of and experience with US military communications or intelligence collection systems. Active DoD or IC TS//SCI clearance with FS Polygraph.

Special Working Conditions:

  • May be required to work a portion of the time at sponsor locations within 30 miles of APL campus.
  • Possible limited travel both inside and outside the continental US.

Security: Applicant selected will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship. Must be eligible for DOD clearance requiring background investigation and/or polygraph examination. Preference for current SSBI.

Benefits: APL offers a comprehensive benefits package including a liberal vacation plan, a matching retirement program, significant educational assistance, a scholarship tuition program for staff with dependents, and competitive salaries commensurate with skills and experience. For more information about our organization, please visit our web site at

Equal Employment Opportunity: Johns Hopkins University/Applied Physics Laboratory (APL) is an Equal Opportunity/Affirmative Action employer that complies with Title IX of the Education Amendments Acts of 1972, as well as other applicable laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, or protected Veteran status.

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