Communications Engineering, Senior

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Department Summary:

The Resilient Communications Department (N172) is seeking talented software and networking engineers with an interest in communications to join our diverse team of engineers working on DoD communications challenges for both the US military and its international partners across all domains (underwater, surface/ground, air, and space).

The Resilient Communications Department focuses on creating and fielding adaptive communications and networking infrastructures to successfully execute different missions in contested environments. DoD communications needs pose unique challenges to operate globally in dynamic or denied environments including the effects of electronic warfare.

The department's work areas include RF communications, networking, modeling and simulation, system integrations, systems engineering, and software programming.

Roles & Responsibilities:

Work includes:

• Ability to work on a collaborative team.
• Selecting, configuring and testing network hardware including computers, firewalls, routers, switches and wireless devices.
• Performing trade studies, modeling, emulating and testing network equipment and network topologies. Parameters of interest can include capacity, loss, latency and jitter.
• Leveraging and building upon existing network modeling and test capabilities to analyze networks.
• Deploying and debugging networks at field experiments.
• Experience using wireless network models and network control services for a variety of protocols and devices

Basic Qualifications:

• BS in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics, Systems Engineering, or similar field with at least 4 years of related experience OR MS in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics, Systems Engineering, or similar field with at least 2 years of related experience OR PhD in Electrical Engineering, Computer Engineering, Computer Science, Physics, Mathematics, Systems Engineering.
• Excellent analytical, written, and oral communication skills
• Strong interpersonal skills to effectively collaborate across multiple organizations and engineering disciplines
• Ability to obtain and maintain a DoD Secret or Top Secret security clearance
• Per the U.S. Government's eligibility requirements, you must be a U.S Citizen to be considered for a security clearance
• Eagerness to learn new skills and technologies
• Experienced with software development in teams using version control. Experience in a programming language like C/C++, Java, or Python, or other object-oriented software programming language.
• Understanding of networks, especially layers 1-4 and 7 of the OSI model.
• Working knowledge of protocols including
  • Ethernet
  • IP (Addressing, Subnets, Routing tables, Public/private/other IP ranges, CIDR), Unicast, Multicast, Broadcast, Static IP/DHCP
  • TCP/UDP
  • HTTP
  • SSH
• Experience with command line linux
• Experience configuring / debugging networking from the command line and using tools like ping, traceroute and nslookup/dig.
• Familiarity with computer emulation, virtualization or containerization.
• This position requires a minimum of 4 days a week on-site.

Preferred Qualifications:

• Experience with network performance testing (including iperf or mgen) and one or more network modeling and simulation tools (EXata, QualNet, EMANE, CORE, NS3, OMNet++, etc.)
• Hands-on experience configuring and debugging medium-scale networks (10s-100s devices, multiple switches, Wi-Fi APs, bridges etc)
• Understanding details of protocols including
  • Ethernet/Wi-FI
    • MTU
    • Switching vs Hubs / Broadcast Domains
    • Medium Access Protocols
      • FDMA/TDMA/CDMA
      • CSMA, CSMA/CA, CSMA/CD
    • Security (802.1x, WPA)
    • Address Resolution Protocol (ARP)
    • VLAN
  • Routing
    • NAT and Port Forwarding
    • DNS
    • OSPF, RIP, EIGRP, BGP
  • Firewall Configuration
  • IPv6
  • IPSec
• Familiar with / aware of common network-based applications/protocols including SSL/TLS, NTP, RTP/RTSP, SIP, SNMP, LLDP, DLEP
• Familiar with VPN and Client/Server vs Site-to-Site topologies
• Exposure to with Bluetooth, Bluetooth Low Energy and 802.15.4
• Exposure to software defined networking (SDN), next generation firewalls and other current and upcoming concepts.
• Exposure to mobile ad hoc network concepts and protocols (OLSR, OSPF-MDR, AODV, DSR)
• Familiar with Quality of Service (QoS) concepts, Traffic Scheduling (WFQ) and Traffic Shaping
• Experience writing network applications (sockets, datagrams, data serialization/encoding, endianness, multithreading, asynchronous I/O)
• Familiar with language-independent data messaging standards such as XML, JSON and Protobuf
• Experienced with software design paradigms such as Publish/Subscribe, Request/Reply

This requisition requires the candidate to have a minimum of the following clearance(s):
None

This requisition requires the hired candidate to have or obtain, within one year from the date of hire, the following clearance(s):
Secret

Salary compensation range and midpoint:
$126,800 - $158,500 - $190,200 Annual

Work Location Type:
Onsite

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Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local or international law.

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