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Salary
$99k – $207k per year
Location
In office (Linthicum Heights)
Seniority
Junior · 5+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 6, 2026. CACI International scores D on the Alion truth index.

Overview
Company
Impact
Profile match
CACI International is an American technology company founded in 1962 that works almost entirely for United States defence, intelligence and federal civilian agencies. It has moved from being a conventional IT services contractor toward supplying its own technology, with a substantial expeditionary electronic warfare and signals intelligence product line, photonics and optical communications for space, and secure network modernisation. Headquartered in Reston, Virginia, the company employs more than twenty thousand people, the majority holding security clearances, and has grown through a steady programme of acquisitions that add differentiated technology rather than headcount alone.
Job Title: Junior Boundary Systems EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *

The Opportunity:

Job Description

We are seeking a System Engineer professional to support the design, implementation, and management of the security and operational boundaries that separate the organization’s internal networks from external, untrusted networks. This role combines network engineering with systems engineering to ensure that the perimeter of a network is clearly defined, controlled, and protected.

Responsibilities:

  • Support large, complex network engineering efforts with evolving requirements and significant scale.
  • Support the development of network architectures and detailed designs; integrate, configure, deploy, test, troubleshoot, and sustain a broad range of network devices, interfaces, protocols, and technologies.
  • Analyze and optimize end-to-end system performance, network capacity, traffic flows, and dataflow management.
  • Configure and optimize network connectivity among front-end, back-end, and distributed system components.
  • Coordinate across systems engineering, network engineering, software, and dataflow teams to support mission operations and minimize downtime.
  • Use design analysis, modeling, testing, and network performance-monitoring tools to reduce latency, eliminate bottlenecks, and maximize throughput and availability.
  • Produce and maintain requirements, architecture diagrams, interface definitions, test plans, configuration baselines, and operational documentation; communicate technical decisions and risks to stakeholders. Qualifications:
  • Active TS/SCI clearance with Full Scope Polygraph (FSP) required; sponsorship is not available.
  • Fourteen (14) years of experience as a Systems Engineer on programs or contracts of similar scope, type, and complexity, including experience performing network engineering functions.
  • Demonstrated experience leading network requirements development, architecture, design, integration, testing, deployment, performance optimization, and operational support.
  • Bachelor’s degree in engineering, computer science, information systems, or a related discipline from an accredited college or university. Five (5) years of additional Systems Engineering experience may be substituted for the bachelor’s degree, for a total of nineteen (19) years of experience.
  • Knowledge of network security principles, configuration management, and technical documentation practices.
-

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.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$98,500-$206,800

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.

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