Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: Senior Network Security 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…
Skills: Network Security Engineering, Network Architecture, Hardware Installation, LAN/WAN Design, Vulnerability Analysis
Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: Senior Network 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: None Type of T…
Skills: Network design, Network security, Dataflow management, Troubleshooting, WAN/LAN design
Columbia, Maryland, United States · On-site
$104k–$218k/yr
Job Title: Network Engineering Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Trave…
Skills: Network engineering, Network design, Network management, Troubleshooting, Firewall configuration
Columbia, Maryland, United States · On-site
$75k–$95k/yr
Title: SR Machinist Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security commu…
Skills: CNC Machining, Manual Machining, Mastercam, Blueprint Reading, GD&T
Columbia, Maryland, United States · On-site
$104k–$218k/yr
Job Title: Network Engineering Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Trave…
Skills: Network engineering, Network design, Troubleshooting, What’s Up Gold, NetFlow
Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: Senior Network 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: None Type of T…
Skills: Network design, Network security, WAN/LAN design, Firewall configuration, VPN
Columbia, Maryland, United States · On-site
$152k–$185k/yr
Location: Columbia, MD Type: Onsite (5 days) Travel: 15% About Us: Sealing Technologies, a Parsons company, innovates and delivers high-performance deployable anywhere technologies that push what's possible at the edge, …
Skills: Sustainment engineering, Reliability, availability, and maintainability (RAM), Obsolescence management, DMSMS mitigation, Root cause analysis
Columbia, Maryland, United States · On-site
$190k–$240k/yr
Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Senior Software Engineer to join our intel team. Jo…
Skills: Python, Data science, Machine learning, Pandas, NumPy
Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: Networking Security Engineer II Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None T…
Skills: Network Security Engineering, Network Architecture, LAN/WAN Systems, Hardware Installation, Vulnerability Assessment
Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: Senior Network 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: None Type of T…
Skills: Network design, Network security, Traffic analysis, Troubleshooting, WAN/LAN design
Columbia, Maryland, United States · On-site
$175k–$207k/yr
Location: Columbia, MD Type: Onsite (5 days) Travel: 15% About Us: Sealing Technologies, a Parsons company, innovates and delivers high-performance deployable anywhere technologies that push what's possible at the edge, …
Skills: Systems engineering, Systems architecture, Network security, Defensive cyberspace operations, Hardware integration
Columbia, Maryland, United States · On-site
Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking an experienced senior HW/SW Design Engineer to join a small team to design, develop, construct, and test electronic hardw…
Skills: FPGA Development, Digital Signal Processing, RTL Development, Timing Closure, Resource Optimization
Columbia, Maryland, United States · Remote OK
$175k–$262k/yr
Title: Senior Capture Manager AAS BELONG. CONNECT. GROW. with KBR! At KBR, we define the future. We are a company of innovators, thinkers, creators, explorers, and dreamers. But we all share one goal: to improve the worl…
Skills: Capture management, Business development, Proposal development, Strategic planning, Federal government contracting
Columbia, Maryland, United States · On-site
$100k–$330k/yr
Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD…
Skills: Kubernetes, Cloud Infrastructure, AWS, Azure, Crossplane
Columbia, Maryland, United States · On-site
$100k–$330k/yr
Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation’s interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD…
Skills: Proxmox VE, Kubernetes, Linux, Ceph, Virtualization
Columbia, Maryland, United States · On-site
$150k–$180k/yr
Technical Writer: Qualification: Eight (8) years’ experience as a TW in programs and contracts of similar scope, type, and complexity is required. Bachelor’s degree in a technical discipline from an accredited college or…
Skills: Technical Writing, DoD Documentation, Engineering Drawings, Cryptologic Programs, NSA DS-89
Columbia, Maryland, United States · On-site
$167k–$229k/yr
Changing lives. Building Careers. Joining us is a chance to do important work that creates change and shapes the future of healthcare. Thinking differently is what we do best. To us, change equals opportunity. Every day,…
Skills: Data analytics, Quality management systems, Program management, Regulatory compliance, SQL
Visionist, Inc.Columbia, Maryland, United States · On-site
$170k–$240k/yr
Active Top Secret (TS/SCI) clearance with polygraph is required. Visionist has an exciting new, fully FUNDED opportunity for a Senior Applied AI Engineer - Software Engineering on our largest PRIME contract. Our team of …
Skills: Python, Software engineering, LLM, RAG, AI agents
GIGATEC EngineeringColumbia, Maryland, United States · On-site
$145k–$175k/yr
Perks and Benefits 100% Paid Healthcare Premiums10% 401k in every paycheck100% Fully Vested! NOTE – Our positions require a Top Secret clearance, as well as the favorable completion of a polygraph. Applicants must be aut…
Skills: Linux CLI, Bash, Python, Java, Spring Framework
Columbia, Maryland, United States · On-site
$21/hr–$33/hr
THE POSITION IN A NUTSHELL Sciens Building Solutions is seeking a Fire Alarm Inspector to provide inspection and maintenance capabilities to support Delaware, Maryland, and Virginia. This position will work closely with …
Skills: Fire alarm inspection, System maintenance, NFPA 72 compliance, IFC code knowledge, Technical drawing interpretation
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Design, evaluate, and secure complex network and hardware systems supporting vital intelligence operations. Lead hardware installations and conduct onsite assessments to ensure architectures meet government security requirements.
Requires an active NSA TS/SCI with Polygraph and 8+ years of experience in Network Security Engineering for SIGINT systems. Must hold a DoD 8570 IAT Level II certification and at least three specific technical certifications such as CCNA or PCNSA.
At CACI, we don’t just work on technology—we deliver solutions that strengthen national security and empower critical missions around the world. We’re looking for an experienced Senior Network Security Engineer who is ready to bring deep technical expertise, curiosity, and a commitment to excellence to our high‑impact programs.
In this role, you’ll play a pivotal part in designing, evaluating, and securing complex network and hardware systems that support vital intelligence operations. You will partner with mission stakeholders, engineers, and technical teams to deliver secure, reliable, and innovative solutions that keep our customers a step ahead.
If you’re driven by purpose, inspired by challenge, and ready to grow your career in an environment built on integrity and innovation, CACI is the place to make your mark.
Responsibilities:
Conduct onsite assessments and document current network architectures and mission‑specific requirements.
Lead and coordinate hardware installations across multiple environments.
Recommend hardware specifications tailored to unique project needs.
Support systems engineering teams by modeling and analyzing proposed solutions.
Design, verify, and implement hardware test interfaces.
Perform MTBF/MTTR analyses to strengthen reliability and maintainability.
Analyze operational data to identify system vulnerabilities and performance gaps.
Evaluate LAN/WAN designs and ensure architectures adhere to mission security needs.
Research and assess COTS/GOTS technologies to drive mission capability.
Provide high‑level expertise in network engineering, architecture, and planning.
Contribute to technical standards, interface specifications, and network troubleshooting.
Ensure system designs and implementations meet all government security requirements.
Develop and enhance security documentation for new and existing systems.
Support wired and wireless network analysis and optimization.
Conduct vendor comparisons, cost studies, and system scalability assessments.
Deliver independent evaluations of complex network ecosystems and recommend enhancements.
Identify and brief system weaknesses with clear, actionable recommendations.
Qualifications:
Required:
An active NSA TS/SCI with Polygraph.
8+ years of Network Security Engineering experience supporting complex SIGINT hardware systems.
Bachelor’s degree in a related technical field, or 5 additional years of experience in lieu of degree.
DoD 8570 IAT Level II certification.
At least three of the following certifications:
– PCNSA
– SNSA
– SNSP
– Symantec ProxySG 6.7 Technical Specialist
– Cisco CCNA or higher
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.
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.
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 - $265,800Expanding the limits of national security
At CACI International Inc (NYSE: CACI), our 27,000 talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest challenges in national security. We are a company of good character, relentless innovation, and long-standing excellence. Our culture drives our success and earns us recognition as a Fortune World's Most Admired Company. CACI is a member of the Fortune 500™ Largest Companies, the Russell 1000 Index, and the S&P MidCap 400 Index. For more information, visit us at www.caci.com. CACI is an Equal Opportunity Employer - Females/Minorities/Protected Veterans/Individuals with Disabilities
Offices: 12021 Sunset Hills Rd, Reston, Virginia 20190, US
Based on 370 listings with disclosed salaries, most engineering jobs in Columbia, MD pay between $70k–$224k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 523 open engineering positions in Columbia, MD listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include BigBear.ai, Leidos, CACI International Inc, Mission Technologies, a division of HII, Parsons Corporation, among others. Browse the listings above to see every active employer.
Yes — 136 of the 523 open engineering positions offer remote or hybrid work (17 remote, 119 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
