Network Protocol SME

SAIC · Arlington

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.

SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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