We are seeking a Subject Matter Expert (SME) in Network Protocols SME to join
our Advanced Engineering Group. The successful candidate will act as the
technical lead for designing, modeling, and analyzing high-fidelity network
architectures. Using Riverbed Modeler (OPNET), you will simulate, troubleshoot,
and optimize complex network scenarios, focusing on Physical (L1), Data Link
(L2), and Network (L3) layers, including physical medium modeling (L0). This
position is remote with travel.
Key Responsibilities
Network Simulation (OPNET/Riverbed): Create, execute, and analyze
high-fidelity discrete-event simulations in Riverbed Modeler to evaluate
network performance, reliability, and scalability.
Protocol Development & Analysis: Act as an SME in routing, switching, and
transport protocols. Modify existing models or develop custom models using
C/C++ to simulate proprietary or emerging protocols.
OSI Layers 0-3 Focus: Deep dive into Physical Layer (signal propagation,
modulation, BER), Data Link (MAC protocols, switching, VLANs), and Network
Layer (BGP, OSPF, EIGRP, MPLS, IPv6) functionalities.
Performance Optimization: Analyze simulation results to identify bottlenecks,
packet loss, latency issues, and capacity constraints, proposing "what-if"
scenarios to improve production network design.
Architecture Modeling: Develop detailed network topologies, including LAN,
WAN, and Wireless scenarios to validate architecture before hardware
deployment.
Technical Reporting: Document simulation methodologies, scenarios, and
results in detailed technical reports for stakeholder review.
QUALIFICATIONS
TYPICAL EDUCATION AND EXPERIENCE: Bachelors and fourteen (14) years or more of
related experience; Masters and twelve (12) years or more experience ; PhD or JD
and nine (9) years or more experience.
Required Skills and Qualifications:
Experience with Riverbed/OPNET: Expert-level proficiency in Riverbed Modeler
(OPNET), including Discrete Event Simulation (DES), simulation execution, and
results analysis.
Protocol Expertise (L1-L3): In-depth understanding of OSI Layer 0-3
technologies, including Ethernet, TCP/IP, routing protocols (BGP, OSPF), and
WAN technologies (MPLS).
Programming Skills: Strong programming skills in C or C++ for model
customization, scripting, and protocol modeling.
Network Design: Experience designing and testing complex WAN/LAN/WLAN network
architecture.
Analytical Skills: Strong analytical and debugging skills to trace data
packets and analyze network behavior, familiar with traffic analysis tools
like Wireshark.
Education: Bachelor’s or Master’s degree in Computer Engineering, Electrical
Engineering, or related field.
Preferred Qualifications
Experience with Riverbed SteelCentral AppResponse or NetPlanner.
Experience with radio frequency (RF) modeling or satellite communication
simulations (Layer 0/1).
U.S. citizenship, and an active DOD Secret clearance, with the ability to
obtain a TS/SCI.
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