Network Modeling and 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

The Opportunity:

We are seeking an experienced Network Modeling and Simulation Lead to drive our network planning and optimization efforts. The successful candidate will lead a team in developing sophisticated network models, conducting simulations, and providing data-driven insights to improve network performance, capacity, and reliability.

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

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

• Ability to work independently and as part of a team

• TS/SCI with Poly required

• Leadership and team management experience, with the ability to inspire and guide teams toward achieving project goals.

Desired:

• Strong programming skills in languages relevant to network modeling (e.g., Python, C++, MATLAB)

• Relevant industry certifications (e.g., CCNP, JNCIP)

• Experience in large-scale, multi-vendor network environments

This position is contingent on funding and may not be filled immediately. However, this position is representative of positions within CACI that are consistently available. Individuals who apply may also be considered for other positions at CACI.

What You Can Expect:

A culture of integrity.

At CACI, we place character and innovation at the center of everything we do. As a valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose – to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

The proposed salary range for this position is:

$120,800 - $265,800

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.