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 - $265,800Skills Required
- 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
- TS/SCI with Poly required
- Leadership and team management experience
- 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
CACI International Inc Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CACI International Inc and has not been reviewed or approved by CACI International Inc.
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Healthcare Strength — Pay is supported by a broad set of health-plan options across multiple national carriers, with telemedicine and tax-advantaged accounts included. Dental and vision choices are also described as multi-option, which strengthens overall coverage breadth.
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Leave & Time Off Breadth — Flexible Time Off is available for many salaried-exempt roles, while hourly roles accrue PTO, creating multiple time-off pathways by employment class. Paid disability coverage, fixed holidays, and paid leave programs (including parental leave and other leave types) further round out time-off and leave coverage.
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Retirement Support — Retirement support includes a 401(k) match structure described as 50% up to 8% of pay (effective 4%) and an Employee Stock Purchase Plan with a discount. Tuition reimbursement and certification support also add to the overall rewards package that complements core retirement benefits.
CACI International Inc Insights
What We Do
CACI’s approximately 23,000 talented employees are vigilant in providing the unique expertise and distinctive technology that address our customers’ greatest enterprise and mission challenges. Our culture of good character, innovation, and excellence drives our success and earns us recognition as a Fortune World's Most Admired Company. As a member of the Fortune 1000 Largest Companies, the Russell 1000 Index, and the S&P MidCap 400 Index, we consistently deliver strong shareholder value. Visit us at www.caci.com.








