Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: 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 10% Ty…
Skills: Network Security Engineering, Network Architecture, Hardware Installation, LAN/WAN Design, Vulnerability Analysis
Columbia, Maryland, United States · On-site
$121k–$266k/yr
Job Title: 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 10% Ty…
Skills: Network Security Engineering, Network Architecture, Hardware Installation, LAN/WAN Design, Vulnerability Analysis
Columbia, Maryland, United States · On-site
$155k–$203k/yr
We are seeking a highly motivated and experienced DevOps Engineer to join our fast-paced development team. The ideal candidate will have strong working knowledge in Kubernetes and Container Orchestration, Configuration M…
Skills: Kubernetes, AWS, Terraform, Ansible, Python
Columbia, Maryland, United States · On-site
$57k–$91k/yr
AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diver…
Skills: Windows System Administration, System Troubleshooting, Patch Management, Backup and Recovery, Virtualization
Columbia, Maryland, United States · On-site
$80k–$250k/yr
Founded in 2007 and headquartered in Columbia, Maryland, Synergy ECP is a leading provider of cybersecurity, software and systems engineering and IT services to the U.S. intelligence and defense communities. The company …
Skills: ServiceNow, AWS, DevSecOps, CI/CD, Active Directory
Columbia, Maryland, United States · On-site
WE ARE HIRING OWNERS Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great wo…
Skills: Assembly, C, C++, Java, Perl
Columbia, Maryland, United States · On-site
WE ARE HIRING OWNERS Set of X is led by industry veterans who see government contracting as a good community with plenty of opportunity to go around. With a shared desire to give back, grow the community, and do great wo…
Skills: Systems Engineering, ISO/IEC 15288, Lifecycle Management, Technical Leadership, Problem Solving
Columbia, Maryland, United States · On-site
$110k–$125k/yr
Purpose and Impact: Come be a part of an exciting and ever-changing program that provides a comprehensive range of state-of-the-art solutions and hands-on assistance in designing, implementing, managing, and sustaining o…
Skills: Systems Administration, End-user Support, Windows Server, Linux, VMware VDI
Columbia, Maryland, United States · On-site
$88k–$155k/yr
In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of v…
Skills: C/C++, Python, Assembly, Linux, Windows
Columbia, Maryland, United States · On-site
$100k–$115k/yr
POSITION CLASS DESCRIPTION / SUMMARY: Sr. Manager of Operations at the Maryland Innovation Center (MIC) will drive operational excellence to further the growth and success of the MIC as a premier innovation hub in Maryla…
Skills: Operational Leadership, Project Management, Budget Forecasting, Vendor Management, Community Management
Columbia, Maryland, United States · On-site
$38/hr–$42/hr
Company Description Join our team at Convergint Federal (CF). Become part of one of the nation's leading security integrators for the U.S. Federal Government. Convergint Federal (CF) is a systems integration company that…
Skills: Access Control, Video Surveillance, Intrusion Detection, System Troubleshooting, Lenel S2
Columbia, Maryland, United States · On-site
Overview At BigBear.ai, we are proud of our people-first work environment. We offer the services, programs, and tools our employees need to balance their work and personal commitments. We care about the mission,and we ca…
Skills: Computer Science, Data Science, Cyber Operations Engineering, Information Technology, Software Development
Melbourne, Florida, United States · On-site
Title: Sr. Capture Manager Belong, Connect, Grow, with KBR! - At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journ…
Skills: Business Development, Capture Management, Market Research, Financial Feasibility Studies, Customer Relationship Management
Columbia, Maryland, United States · On-site
$75k–$80k/yr
Lentech is hiring an ENTRY LEVEL help desk technician Responsibilities: • Rotating Shift work position: 7 days a week, 365 days a year. Generally, 4 days on, 3 days off, with 10 hour work days. • Small team, providing se…
Skills: Service Availability Monitoring, Help Desk Support, Troubleshooting, ServiceNow, Tier 1 Response
Columbia, Maryland, United States · On-site
Lentech is hiring an ISSO Responsibilities: Work with the IA team to plan and coordinate the IT security programs and policiesCoordinate with system developers, administrators, and owners on security changesManage and co…
Skills: Information Assurance, Security Continuous Monitoring, SSP Documentation, Assessment and Authorization, TS/SCI Clearance
Columbia, Maryland, United States · On-site
$130k–$200k/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 Configuration Management (HPCOS) to join our intel …
Skills: Configuration Management, Change Control, Configuration Audits, Version Control, Baseline Management
Columbia, Maryland, United States · On-site
$130k–$200k/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 Configuration Management (HPCOS) to join our intel …
Skills: Configuration Management, Change Control, Configuration Audits, Version Control, Baseline Management
Columbia, Maryland, United States · On-site
$72/hr–$114/hr
At Wyetech, you’ll be at the center of an award-winning corporate culture, breaking technological barriers and solving real-world problems for our federal government customers. We are committed to hiring the best of the …
Skills: Network Design, LAN/CAN/WAN Administration, Cisco Configuration, Arista Configuration, VPN
Columbia, Maryland, United States · Hybrid
$180k–$220k/yr
Baltimore/DC Metro Area (Hybrid) | Full-Time $180,000–$220,000 base + commission and performance bonus Position Summary As CANDA Solutions continues to scale operations and expand its presence across federal, defen…
Skills: Sales Strategy, Capture Management, Federal Contracting, Defense Sales, International Business Development
Columbia, Maryland, United States · On-site
$79k–$163k/yr
Job Title: Splunk Software Engineer-TS/SCI with Poly Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 1…
Skills: Linux System Administration, Splunk, Cross Domain Solutions, SaltStack, iDRAC
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 5+ years of experience supporting complex SIGINT hardware systems. Must hold a DoD 8570 IAT Level II certification and at least three specific network security certifications.
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.
5+ 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 250 listings with disclosed salaries, most government & public sector jobs in Columbia, MD pay between $60k–$217k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 354 open government & public sector positions in Columbia, MD listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Set of X, BigBear.ai, AT&T, eSimplicity, Parsons Corporation, among others. Browse the listings above to see every active employer.
Yes — 98 of the 354 open government & public sector positions offer remote or hybrid work (19 remote, 79 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.
