4,694 Results for

Network Security Jobs in Laurel, MD

Jobs

Lead Network Systems Engineer Peraton Inc

Annapolis Junction, MD

$176,000–$282,000 / year

Benefits: Peraton offers enhanced benefits to employees supporting this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap, and eligibility to participate in an attractive bonus plan. Experience with Cisco ASA appliances, Cisco Nexus 9000 series, Cisco 9348GC Layer 2 switches, Cisco Catalyst 6500 series, Cisco 9336 and 9508 switches, and ASR 1000 series routers.

9 days ago

Senior Zero Trust Network Access (ZTNA) Engineer- Arlington, VA CoStar Group Inc

Arlington, VA

$118,000–$176,000 / year

The successful candidate must understand end-to-end network behavior and independently diagnose complex connectivity, authentication, routing, DNS, performance, and application-access issues across endpoints, enterprise networks, cloud security platforms, identity providers, and applications. This Senior Zero Trust Network Access (ZTNA) Engineer role will augment CoStar's zero-trust engineering teams, providing expertise in the architecture, implementation, operation, and continuous improvement of the company's cloud-delivered ZTNA and Security Service Edge (SSE) platforms.

24 days ago

Cyber Security Systems Engineer - Expert BAE Systems Plc

Sterling, VA

$149,603–$254,317 / year

Network infrastructure engineering services are comprised of core infrastructure, voice and video engineering, field engineering, application management and development for networks, network analytics, firewalls, network access controls and bandwidth service delivery. About BAE Systems Intelligence & Security BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services.

30 days ago

Senior Security Engineer Leidos

Bethesda, Maryland

September 14, 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. Coordinate vulnerability remediation across Windows, Linux, network, desktop support and other engineering teams and provide hands-on support for complex or high-priority issues as needed.

30+ days ago

Network Engineer J5 Consulting

Herndon, VA

This includes, but is not limited to the wide area network, local area network, firewalls, voice over IP, video engineering, data center engineering, network performance analysis, and Tier IV operational and engineering support and network security. Demonstrated experience with in-depth knowledge of General Dynamics crypto devices such as the E-100, FLEX, Micro, Nano, TL-10G, TL-1g, and next generation crypto devices, including their configuration, operation, and maintenance.

30+ days ago

Information Systems Security Officer, I (Government) Military, Veterans and Diverse Job Seekers

Maryland

Familiarity with controlling, labeling, virus scanning, and appropriately transferring data (uploading/downloading) between information systems at varying classification levels. The Level 1 ISSO position is an entry level IS professional who aids the Government on basic IT and information system security issues affecting the mission.

30+ days ago

Sr. SOC/Security Engineer Revolutional, LLC

Washington, DC

$130,000–$160,000 / year

This seasoned subject matter expert supports the engineering, deployment, configuration, operation, maintenance, integration, and sustainment of SOC tools, sensors, platforms, enclaves, and supporting cybersecurity capabilities, leads the SOC engineers performing this work, and develops solutions to undefined, complex technical problems. We are seeking a Senior SOC/Security Engineer to serve as task lead for SOC engineering, deployment, operations, and maintenance in a 24x7x365 Security Operations Center (SOC) supporting a large federal agency.

4 days ago

Network Engineer III Stratum Networks

Maryland

Provides assistance in all aspects of network management from network design through implementation, maintenance, and upgrading of existing networks; Analyzesdesign, specifications, and related documents; Implements communication system requirements to support the distributed functionality of a software engineering environment; Analyzes network characteristics (e.g. As leading experts in their fields, our certified and highly experienced network, software development, IT support and security professionals are able to provide the necessary design, implementation, and consulting services to meet the demanding requirements of mission-critical .

30+ days ago

Sr. Network Engineer ActioNet Inc

Washington, DC

$140,000–$170,000 / year

Oversee the strategic interface for network system configuration, strategically plan new configurations for network operations using knowledge of the characteristics of the systems being added to the network, and the specifications for network interfaces to ensure effective integration and optimal network performance. Design and implement computer and information networks, such as local area networks (LAN), wide area networks (WAN), intranets, extranets, and other data communications networks including Software Defined Networks (SDN), Application Analysis, and Quality of Service.

30+ days ago

Network Engineer Quadrant Inc

Washington, DC

$140,000–$175,000 / year
Quick Apply

Experience with enterprise firewalls, IDS/IPS, remote-access and site-to-site VPNs, ZTNA, DNS, DHCP, IPAM, NAC, and secure hybrid connectivity. Support enterprise routing, switching, internet connectivity, wireless infrastructure, VPN/ZTNA services, firewalls, and data center interconnections.

15 days ago

Information Systems Security Engineer (ISSE) TekSynap Corp

Fort Belvoir, VA

$145,000–$170,000 / year

Deploy, configure, and execute automated vulnerability scanners-including ACAS/Tenable Nessus and the SCAP Compliance Checker (SCC)-to discover flaws and engineer technical, code-level, or system-level mitigations. Configure and maintain secure log transport pipelines (Syslog-ng, Logstash), design SIEM/SOAR ingestion schemas, parsing engines, and correlation alert logics, and integrate NetFlow, Zeek, and NDR telemetry feeds.

25 days ago

Network Engineer CACI Products

Herndon, VA

$120,000–$160,000 / year

L2T, LLC is a fast-growing, high-tech, mission-driven company based in Herndon, Virginia that prides itself on delivering technical and mission-related solutions that allow our customers to succeed in achieving their most challenging goals. . . We are a close-knit team of highly motivated and skilled individuals that are focused on a commitment to facing the most complex and difficult efforts head-on with a balance of creativity and discipline, and an unwavering nerve.

30+ days ago

Cyber Network Defense Analyst (CNDA) – Cloud Forensics Argo Cyber Systems

Arlington, VA

Full time
Quick Apply

Correlate cloud telemetry (Azure Activity Logs, AWS CloudTrail, GCP Logs, VPC Flow Logs) and network evidence to reconstruct attacker timelines and validate indicators of compromise (IOCs).Develop and deploy automated detection logic, threat-hunting scripts, and analytical playbooks using Microsoft Sentinel, Defender, AWS GuardDuty, and GCP Chronicle. Preferred CertificationsGIAC Cloud Defender (GCLD), GCFR, GCFA, GCFE, GCIH, EnCE, CCE, CFCE, CISSP, CCSPAWS and Microsoft security/cloud certifications (e.g., Azure Security Engineer, AWS Security Specialty)Why Argo Cyber SystemsAt Argo, you'll be part of a mission-driven, veteran-founded cybersecurity team protecting America's most critical systems.

30+ days ago

15Yrs Network/Cloud Solutions Architect/Information Security AHU Technologies

Washington, District of Columbia

$140–$145 / hour

o Design and enablement of cyber controls functions and processes based on CMMC / NIST 800-171, NIST 800-53 Risk Management: o Familiarity with risk management frameworks like NIST RMF, ISO 27005, and FAIR. Role: Cloud Solutions Architect Client: DC Government Location: Washington DC (Hybrid) Job Description: Key Responsibilities: Strategic Planning and Advisory: o Develop and refine the organization’s cybersecurity strategy, ensuring alignment with overall business goals.

30+ days ago

Splunk Engineer - TS/ SCI security clearance CDW Corp

McLean, VA

$190,000–$240,000 / year

As a full‑stack, full‑lifecycle technology partner, CDW brings deep expertise, strong relationships, and broad industry knowledge to help turn ideas into outcomes. CDW is a Fortune 500 technology solutions provider that helps businesses, government, education, and healthcare organizations achieve what's possible through technology.

30+ days ago

Network Engineer IV PDS Inc, LLC

Arlington, VA

Quick Apply

Candidates should also have had significant past experience with, and expertise in many of the following protocols & technologies: DWDM, T1/DS1, DS3, SONET (OC3, OC48), 802.2/3, 802.1d VLANs/STP, IPv4 & IPv6, TCP (internals & flow control), BGP, OSPF, HSRP/GLBP, PIMv2, IGMP, LDP, TACACS, IPSEC & VPNs, Netflow, DNS, HTTP. In-depth knowledge of and experience with major router platforms; specifically with Cisco 37xx, 49xx, 65xx, 73xx, 76xx platforms including all compatible supervisory and line cards for these platforms.

30+ days ago

Microsoft Security Active Directory Senior Consultant Deloitte Touche Tohmatsu Ltd

McLean, VA

$105,400–$207,800 / year

Performing and overseeing Active Directory assessments covering domain and forest architecture, domain controllers, Sites and Services, Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), replication, trusts, Group Policy, privileged groups, service accounts, authentication protocols, and administrative processes. Experience with enterprise Active Directory services, including domain and forest architecture, domain controllers and replication, DNS, DHCP, Sites and Services, Group Policy, trusts, service accounts, Lightweight Directory Access Protocol (LDAP), and domain or forest recovery.

29 days ago

Network and Cybersecurity Engineer Amentum

Fairfax, Virginia

$183,000–$203,000 / year

Working closely with Government stakeholders and engineering teams, this position ensures systems are securely deployed, maintained, and operated in accordance with ICD 503, Risk Management Framework (RMF), and customer security requirements while supporting mission-critical operations. The Network and Cybersecurity Engineer is responsible for supporting Information Assurance (IA) activities, coordinating Assessment and Authorization (A&A) and Authority to Operate (ATO) efforts, and implementing cybersecurity best practices throughout the system lifecycle.

12 days ago

Network Engineer SME (Ts/Sci With Poly Required) GCI Inc

arlington, VA

The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. Provides technical expertise in all areas of network and computer hardware and software interconnection and interfacing, such as routers, switches, firewalls, bridges, gateways, etc.

30+ days ago

Network Engineer Level 1 - (Cisco, TCP/IP, Virtualization) Akina

Annapolis Junction, Maryland

Cisco IOS, CatOS, NxOS, filter and access control, Ciscoworks, TACACS+, ASA, FWSM, HP Openview, Cisco routers, Cisco Switches, F5/Cisco load balancers, Infiniband, Juniper, FiberChannel (FC) SAN, and VPN (IPSEC). Must have datacenter network design and architecture experience to include installation and configuration of Cisco routers, switches, firewalls, and IPSEC virtual private networks.

8 days ago

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Network Security Jobs in Laurel, MD

Lead Network Systems Engineer Peraton Inc

Senior Zero Trust Network Access (ZTNA) Engineer- Arlington, VA CoStar Group Inc

Cyber Security Systems Engineer - Expert BAE Systems Plc

Senior Security Engineer Leidos

Network Engineer J5 Consulting

Information Systems Security Officer, I (Government) Military, Veterans and Diverse Job Seekers

Sr. SOC/Security Engineer Revolutional, LLC

Network Engineer III Stratum Networks

Sr. Network Engineer ActioNet Inc

Network Engineer Quadrant Inc

Information Systems Security Engineer (ISSE) TekSynap Corp

Network Engineer CACI Products

Cyber Network Defense Analyst (CNDA) – Cloud Forensics Argo Cyber Systems

15Yrs Network/Cloud Solutions Architect/Information Security AHU Technologies

Splunk Engineer - TS/ SCI security clearance CDW Corp

Network Engineer IV PDS Inc, LLC

Microsoft Security Active Directory Senior Consultant Deloitte Touche Tohmatsu Ltd

Network and Cybersecurity Engineer Amentum

Network Engineer SME (Ts/Sci With Poly Required) GCI Inc

Network Engineer Level 1 - (Cisco, TCP/IP, Virtualization) Akina

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