Senior Network Modeling & Simulation Lead

CACI; Sterling (VA); On-site; USD 121,000 - 266,000; Full time

Job summary

CACI is seeking an experienced Network Modeling and Simulation Lead to drive network planning and optimization. You will lead a team to build sophisticated models, run simulations, and deliver data-driven insights to improve performance, capacity, and reliability.

The role requires deep expertise in IP/MPLS, optical networks, and network simulation tools (NS3, Riverbed Modeler, OPNET). You will mentor staff, collaborate with architects, and translate results into actionable design

Qualifications

• Bachelor's degree in Applied Mathematics, Applied Statistics, Computer Science, Information Technology, or equivalent work experience.
• 10+ years of related work experience.
• Strong understanding of network protocols, architectures, and technologies (e.g., TCP/IP, MPLS, SDN).
• Expertise in network simulation tools (NS3, Riverbed Modeler, OPNET, Paragon Planner, etc.).
• Experience with data analytics and visualization tools.
• Proven track record of solving complex network problems through modeling and simulation.
• Strong analytical and problem-solving skills, with the ability to interpret complex data and translate it into actionable insights.
• Strong written and verbal communication skills.
• TS/SCI with Poly required.
• Leadership and team management experience.

Responsibilities

• Lead the development and maintenance of complex network models for various network technologies (e.g., IP/MPLS, optical).
• Oversee the design and execution of network simulations to evaluate performance, capacity, and scalability.
• Develop methodologies for accurate traffic forecasting and network dimensioning.
• Guide the team in analyzing simulation results and preparing comprehensive reports for stakeholders.
• Collaborate with network architects and engineers to translate simulation insights into actionable network design recommendations.
• Evaluate and implement new modeling and simulation tools and techniques.
• Ensure the accuracy and validity of network models through continuous refinement and calibration.
• Provide technical leadership and mentorship to the modeling and simulation team.
• Coordinate with cross-functional teams to align simulation efforts with business objectives.
• Stay current with emerging network technologies and incorporate them into modeling practices.

Skills

Network modeling

Network simulation

Leadership

Data analytics

Communication

Problem solving

Education

Bachelor's degree in a relevant field

Tools

NS3

Riverbed Modeler

OPNET

Paragon Planner

Python

MATLAB

Job description

CACI is seeking an experienced Network Modeling and Simulation Lead to drive network planning and optimization. You will lead a team to build sophisticated models, run simulations, and deliver data-driven insights to improve performance, capacity, and reliability.

The role requires deep expertise in IP/MPLS, optical networks, and network simulation tools (NS3, Riverbed Modeler, OPNET). You will mentor staff, collaborate with architects, and translate results into actionable design