
Senior Boundary Network Systems Engineer
Linthicum Heights, MDFull-time$115–252K/yrSeen 2 days agoSeen in employer's feed 2 days ago
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At a glance
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Requirements
Credentials this posting asks for.
Job overview
CACI seeks a Senior Boundary Network Systems Engineer to lead the design, implementation, and management of secure network boundaries between internal and untrusted external networks. The role combines network and systems engineering, covering architecture, integration, performance optimization, and operational support. The engineer will lead complex network efforts and coordinate across engineering and mission teams. An active TS/SCI clearance with Full Scope Polygraph is required; sponsorship is unavailable.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Job Title: Senior Boundary Network Systems Engineer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI with Polygraph
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Local
The Opportunity:
Seeking a System Engineer professional to lead 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:
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Lead large, complex network engineering efforts with evolving requirements and significant scale; develop and manage system and network requirements throughout the engineering lifecycle.
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Develop network architectures and detailed designs; integrate, configure, deploy, test, troubleshoot, and sustain a broad range of network devices, interfaces, protocols, and technologies.
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Analyze and optimize end-to-end system performance, network capacity, traffic flows, and dataflow management.
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Configure and optimize network connectivity among front-end, back-end, and distributed system components.
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Coordinate across systems engineering, network engineering, software, and dataflow teams to support mission operations and minimize downtime.
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Lead the implementation of secure, high-speed, scalable, resilient, and fault-tolerant LAN and WAN architectures.
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Use design analysis, modeling, testing, and network performance-monitoring tools to reduce latency, eliminate bottlenecks, and maximize throughput and availability.
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Produce and maintain requirements, architecture diagrams, interface definitions, test plans, configuration baselines, and operational documentation; communicate technical decisions and risks to stakeholders.
Qualifications
Qualifications:
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Active TS/SCI clearance with Full Scope Polygraph (FSP) is required; sponsorship is not available.
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Twenty (20) years of experience as a Systems Engineer on programs or contracts of similar scope, type, and complexity, including experience performing network engineering functions.
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Demonstrated experience leading network requirements development, architecture, design, integration, testing, deployment, performance optimization, and operational support.
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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 twenty-five (25) years of experience.
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Expert knowledge of network security principles, configuration management, and technical documentation practices.
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Experience with requirements analysis, interface definition, network capacity planning, redundancy, resiliency, and fault-tolerant design.
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Experience using network monitoring, packet analysis, traffic analysis, and performance-management tools.
Desired:
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Hands-on experience with LAN and WAN architecture, IP routing, switching, and network troubleshooting.
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:
$114,600-$252,100
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.
How this job compares
Set against the 11,868 open Systems Engineer jobs on Olive Jobs, counted November 10, 2026.
- Pay
- This posting$115–252K/yr
- Maryland median$124–200K/yr562 salary ranges
- US median$115–190K/yr8,798 salary ranges
This range's midpoint, $183K, is 14% above the Maryland median midpoint ($161K) — in the middle half of Systems Engineer salary ranges in Maryland.
- Openings
- Olive Jobs lists 699 open Systems Engineer jobs in Maryland and 11,868 across the US. 5% of them nationwide are listed as remote or flexible.
- Hiring the most in Maryland
- Northrop Grumman62 open
- Leidos57 open
- Peraton56 open
- Experience
- This posting asks for at least 20 years of experience — more than three in four Systems Engineer postings that state a minimum ask for (median 5 years, across 9,801 postings).
- Education
- 4,398 of the 11,868 open Systems Engineer jobs (37%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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