1,901 Results for

Security Engineer Jobs in Linthicum, MD

Jobs

Network Engineer Leidos Holdings Inc

Camp Springs, MD

$107,900–$195,050 / year

Duties include providing specifications for network architecture design, evaluate and perform assessments of current infrastructure to ensure solution meets customer requirements, conduct proof of concepts and/or recommend hardware/software purchases in support of new technologies on ways to improve the environment. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

3 days ago

Network Engineer Covington & Burling LLP

Washington, DC

$109,000–$136,000 / year

To be granted access pursuant to US Export Control laws candidate must be either a a United States citizen or national b a person lawfully admitted for permanent residence of the United States i.e. Green Card" holder or c an INS-approved refugee or asylum holder who has applied for naturalization within six months of the date the individual first became eligible and if not yet naturalized is still actively pursuing naturalization if 2 years have passed since the date of application to be granted access pursuant to US Export Control laws. Network Engineer IT Infrastructure Solutions Department Summary The Network Engineer is part of a team of engineers who design build maintain and support the Firms global portfolio of networking infrastructure solutions.

30+ days ago

Principal Network Access Control (NAC) Engineer Leidos Holdings Inc

Odenton, MD

$116,350–$210,325 / year

This position requires an engineer capable of modernizing enterprise wireless infrastructure, integrating centralized management platforms, improving network resiliency, and implementing secure wireless access across distributed environments. Significant hands-on experience engineering, implementing, and supporting enterprise Aruba wireless infrastructure, including controllers, access points, and centralized management platforms.

2 days ago

Senior Electrical Engineer Salas O'Brien

Baltimore, Maryland

The Senior Electrical Engineer works in a fast-paced, multidisciplinary team environment leading power distribution, emergency power, and electrical resiliency design for new facilities, additions, and renovation projects, with particular emphasis on secure and hazardous occupancy (e.g., ICD 705, IBC H-2) environments where electrical system reliability and continuity carry direct mission-critical and life-safety consequences. Our specialized experience includes design for data centers, healthcare, science and technology, high-rise buildings, clean energy, education, and other building types as well as structural and building sciences, infrastructure asset management, advanced robotics, and more.

30+ days ago

Data Security Engineer Leidos

Adelphi, Maryland

Our team provides continuous monitoring, threat detection, incident response, and vulnerability management across cloud and on-premises environments, including AWS, Azure, GCP, Oracle Cloud, and SaaS platforms. August 13, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

30+ days ago

Security Clearance DevOps Engineer Globalchannelmanagement

Maryland

Experience with big data technologies like: Hadoop, Accumulo, Ceph, Spark, NiFi, Kafka, PostgreSQL, ElasticSearch, Hive, Drill, Impala, Trino, Presto, etc. Security Clearance DevOps Engineer requires: Security Clearance - A current TS/SCI U.S. Government Security clearance is required; U.S. citizenship required.

30+ days ago

Senior Network Engineer Leidos

Laurel, Maryland

This is an opportunity to apply deep network engineering expertise to complex, mission-critical environments—from designing and optimizing secure networks to deploying communications capabilities, troubleshooting complex problems, integrating emerging technologies, and guiding other network engineers. Demonstrated experience designing, configuring, implementing, troubleshooting, and optimizing complex network and telecommunications environments, including routing protocols, BGP, policy-based routing, tunneling, IPsec, NAT, WAN technologies, traffic management, and network performance analysis.

16 days ago

Network Engineer Leidos

Camp Springs, Maryland

Duties include providing specifications for network architecture design, evaluate and perform assessments of current infrastructure to ensure solution meets customer requirements, conduct proof of concepts and/or recommend hardware/software purchases in support of new technologies on ways to improve the environment. October 7, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

4 days ago

Data Center Network Engineer (Cisco Enterprise) – Hybrid Omm IT Solutions

Windsor Mill, Windsor Mill

We are seeking a skilled D ata Center Network Engineer with strong expertise in Cisco Enterprise networking and hands-on experience working in a data center environment. The ideal candidate will support a federal client by operating, maintaining, and troubleshooting enterprise and data center network infrastructure using modern Cisco technologies in a secure, mission-critical environment.

30+ days ago

Network Engineer Que Technology Group

Annapolis Junction, Maryland

Que Technology Group is seeking an experienced Network Engineer to join a collaborative team supporting the networking environments of two unique operational customers. The ideal candidate has strong experience configuring and sustaining Cisco and Arista networking environments and is comfortable supporting firewalls, cryptographic equipment, and operational systems.

8 days ago

Principal Network Access Control (NAC) Engineer Leidos

Odenton, Maryland

This position requires an engineer capable of modernizing enterprise wireless infrastructure, integrating centralized management platforms, improving network resiliency, and implementing secure wireless access across distributed environments. Significant hands-on experience engineering, implementing, and supporting enterprise Aruba wireless infrastructure , including controllers, access points, and centralized management platforms.

3 days ago

Sr. Network Engineer ManTech International Corp

Laurel, MD

$141,500–$236,000 / year

As a Senior Network Engineer/Architect, you will work alongside customers, Integrated Product Teams (IPTs), and vendors to support the implementation and compliance of advanced EIT capabilities through Data Center & Compute Services. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.

30+ days ago

Information Systems Security Expert (ISSE) (Mid to Senior Level) Full Scope

Suitland, Maryland

Applies system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing. Designs, develops, implements and/or integrates IA and security systems and system components including those for networking, computing, and enclave environments to include those with multiple enclaves and with differing data protection/classification requirements.

30+ days ago

Cloud Security Assessor Fusion Technology

Washington, DC

Full time
Quick Apply

Fusion Technology is a performance-driven HUBZone Small Business concern residing in the heart of the beautiful mountainsides of West Virginia, steps away from the Federal Bureau of Investigation's Criminal Justice Information Services Division's Headquarters. Founded in 2007 by an Engineer-by-trade, Fusion Technology dedicates our valuable resources to providing comprehensive IT services and solutions to mission-critical US Government programs and the Intel Community.

30+ days ago

Systems Engineer (Mission Operations, Linux/NiFi), Intelligence Community Mission Program, Fort Meade, MD BizFirst

Howard, MD

In this help desk and systems support role, you will maintain computers and networks, keep front-end systems (including survey systems) configured and performing, and optimize systems that carry advanced data and voice technologies over IP. Its systems, software, and data science engineers work side by side with government teams to model, design, integrate, and deploy complex mission systems, and the company also builds rugged RF hardware for specialized SIGINT applications.

25 days ago

Senior IA System Architect & Engineer Helm Point Solutions

Maryland

We are seeking a highly experienced Senior Information Assurance (IA) System Architect & Engineer to provide expert support in designing, developing, and integrating secure architectures and system components for government environments. 14+ years IA System Architect/Engineer (IASAE) experience, including recent (last 5 years) work with Defense-in-Depth, access control, authorization, authentication, PKI, and enterprise/network security architecture.

30+ days ago

Senior Network Engineer Quantum Sky

Washington, Washington, DC

$145,000–$165,000 / year
Full time

The ideal candidate brings deep, hands-on expertise with advanced routing and switching, particularly OSPF and BGP, as well as extensive experience with IPsec VPNs, GRE tunneling, encrypted network communications, and enterprise Cisco and Juniper environments. This is an opportunity to join an established program of approximately 50 developers, infrastructure and engineering professionals supporting the customer's complete technology environment, including networking, systems, VDI, hosting, storage, security, and application infrastructure.

30+ days ago

Senior Network Engineer APG Federal Credit Union

Edgewood, Maryland

This role serves as the lead network authority, providing strategic direction, advanced technical expertise, and oversight of complex network environments including routing, switching, firewalls, SD-WAN, wireless, cloud networking, and network security. Key Responsibilities: Network Architecture & Engineering (60%): Architect, design, and maintain on-premises, branch, colocation, and cloud networks, including LAN/WAN, SD-WAN, VPN, VTI, wireless, firewalls, IPS/IDS, and cloud networking.

30+ days ago

Sr Staff Cyber Systems Engineer Northrop Grumman Corp

Annapolis Junction, MD

$212,100–$318,100 / year

Basic Qualifications: Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or other technical/science discipline with 14 years of relevant experience; Master's Degree in Electrical Engineering, Computer Engineering, Computer Science, or other technical/science discipline with 12 years of relevant experience; PhD in Electrical Engineering, Computer Engineering, Computer Science, or other technical/science discipline with 10 years of relevant experience. Familiarity with Anti-Tamper Plans, Counterintelligence Support Plans, Integrated Threat Assessment Reports, Operations Security Plans, Continuous Monitoring Plans, Defensive Cyberspace Operations Plans, Cybersecurity Strategies, Information Support Plans, Enterprise Architecture Views and NIST SP 800-160.

30+ days ago

Cybersecurity Engineer III Trace3 Inc

$165,000–$175,000 / year

JOB SUMMARY: The Cyber Security Engineer III is responsible for designing, implementing, and maintaining advanced cybersecurity solutions that protect organizational systems, networks, and data from cyber threats. SUMMARY OF ESSENTIAL JOB FUNCTIONS: Design, implement, and maintain enterprise security solutions including firewalls, intrusion detection/prevention systems, endpoint protection, and identity management tools.

23 days ago

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Security Engineer Jobs in Linthicum, MD

Network Engineer Leidos Holdings Inc

Network Engineer Covington & Burling LLP

Principal Network Access Control (NAC) Engineer Leidos Holdings Inc

Senior Electrical Engineer Salas O'Brien

Data Security Engineer Leidos

Security Clearance DevOps Engineer Globalchannelmanagement

Senior Network Engineer Leidos

Network Engineer Leidos

Data Center Network Engineer (Cisco Enterprise) – Hybrid Omm IT Solutions

Network Engineer Que Technology Group

Principal Network Access Control (NAC) Engineer Leidos

Sr. Network Engineer ManTech International Corp

Information Systems Security Expert (ISSE) (Mid to Senior Level) Full Scope

Cloud Security Assessor Fusion Technology

Systems Engineer (Mission Operations, Linux/NiFi), Intelligence Community Mission Program, Fort Meade, MD BizFirst

Senior IA System Architect & Engineer Helm Point Solutions

Senior Network Engineer Quantum Sky

Senior Network Engineer APG Federal Credit Union

Sr Staff Cyber Systems Engineer Northrop Grumman Corp

Cybersecurity Engineer III Trace3 Inc

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