Bachelor's or Master's degree in Computer Engineering, Electrical Engineering, or related field.
14+ years of experience with a Bachelor's, 12+ years with a Master's, or 9+ years with a PhD/JD.
Expert-level proficiency in Riverbed Modeler (OPNET) and Discrete Event Simulation (DES).
In-depth understanding of OSI Layer 0-3 technologies, including Ethernet and TCP/IP.
Strong programming skills in C or C++ for model customization and protocol modeling.
Experience designing and testing complex WAN/LAN/WLAN network architectures.
Strong analytical skills with familiarity in traffic analysis tools like Wireshark.
Responsibilities
Create, execute, and analyze high-fidelity discrete-event simulations in Riverbed Modeler.
Act as an SME in routing, switching, and transport protocols, modifying or developing models as needed.
Deep dive into functionalities of OSI Layers 0-3, focusing on signal propagation, MAC protocols, and routing protocols.
Analyze simulation results to identify network performance issues and propose optimization scenarios.
Develop detailed network topologies for LAN, WAN, and Wireless scenarios to validate architecture.
Document simulation methodologies and results in detailed technical reports for stakeholders.
Benefits
Remote work flexibility with occasional travel.
Opportunity to work on cutting-edge network architecture projects.
Access to advanced simulation tools and technologies.
Collaborative environment within an Advanced Engineering Group.
Potential for professional growth and development in a specialized field.
Full Job Description
Job Description
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.
About SAIC
Science Applications International Corporation (SAIC) is a technology integrator in the technical, engineering, intelligence, and enterprise information technology markets. SAIC has approximately 26,000 employees and operates in more than 70 countries. The company was founded in 1969 and is headquartered in Reston, Virginia. SAIC provides services to the U.S. government, including the Department of Defense, the intelligence community, and civilian agencies. The company also serves commercial customers in the healthcare, energy, and financial services sectors.
