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Network Security Jobs in Montpelier, MD

Jobs

Senior Security Engineer-Network Security Assessment & Post-Quantum Cryptography (PQC) - Hybrid ATD Technology LLC

Suitland, MD

$180,000–$230,000
Quick Apply

Analyze cryptographic implementations key-exchange, digital-signature, and cipher-suite selections; certificate and PKI dependencies; key management and HSM integration; and FIPS 140-2/140-3 validated modules to identify components that rely on quantum-vulnerable public-key algorithms (RSA, Diffie-Hellman, ECDH, ECDSA). Assess the impact of PQC requirements on network implementations, including larger keys and signatures affecting packet size, fragmentation, MTU, and handshake latency; hardware, ASIC, and crypto-accelerator constraints; hybrid key-establishment options; and certificate-chain and protocol interoperability.

3 days ago

Cyber Zscaler Network Security Engineering Manager / Manager, Strategy, Growth, And Transformation Deloitte

Washington, DC

$134,500–$265,100 / year

3+ years of experience designing, deploying, and managing Zscaler Cloud Connector, including deployment within cloud environments (AWS, Azure, and/or GCP), workload-to-internet and workload-to-workload traffic inspection, and integration with cloud-native networking constructs (e.g., VPCs, VNets, Transit Gateways). 7+ years of hands-on experience designing, deploying, and managing Zscaler Private Access (ZPA), including application segment configuration, access policies, connector deployment, and zero trust network access (ZTNA) architectures replacing legacy VPN infrastructure.

3 days ago

Network Security Architect Lead - Principal Amentum

Maryland

$240,000–$310,000 / year

Lead the security engineering efforts necessary to navigate the Risk Management Framework (RMF) Assessment & Authorization (A&A) process, ensuring all designs comply with DISA Security Technical Implementation Guides (STIGs) and secure an active Authority to Operate (ATO). Proven experience navigating the Risk Management Framework (RMF) and designing network architectures that meet NIST SP 800-53 controls and DISA STIGs to secure and maintain a government Authority to Operate (ATO).

4 days ago

Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, And Transformation Deloitte

Baltimore, MD

$105,400–$207,800 / year

1+ years of experience designing, deploying, and managing Zscaler Cloud Connector, including deployment within cloud environments (AWS, Azure, and/or GCP), workload-to-internet and workload-to-workload traffic inspection, and integration with cloud-native networking constructs (e.g., VPCs, VNets, Transit Gateways). 5+ years of hands-on experience designing, deploying, and managing Zscaler Private Access (ZPA), including application segment configuration, access policies, connector deployment, and zero trust network access (ZTNA) architectures replacing legacy VPN infrastructure.

3 days ago

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, And Transformation Deloitte

Baltimore, MD

$105,400–$207,800 / year

Configuring and tuning security capabilities including Threat Prevention, intrusion prevention system/intrusion detection system (IPS/IDS), Anti-Spyware, Antivirus, WildFire, Domain Name System (DNS) Security, and Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption policies. Experience integrating Palo Alto Firewalls and Prisma with SIEM/SOAR platforms (e.g., Splunk, Microsoft Sentinel, Palo Alto XSOAR) via log streaming, API connectors, or syslog for threat detection and incident response workflows.

3 days ago

Cyber Network Security Architecture - Senior Manager Deloitte

Baltimore, MD

$163,400–$322,100 / year

8+ years of experience in the design and architecture of enterprise-level technical stacks, including VPNs, CDN solutions, Load Balancers, Subnetting, Next-Generation firewall design, and highly scalable security solutions like Secure Access Service Edge (SASE) technologies. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.

3 days ago

Cyber Network Security Architecture - Manager Deloitte

Mclean, VA

$134,500–$265,100 / year

Design scalable security architectures spanning Cloud-Native Application Protection Platforms (CNAPP), Secure Access Service Edge (SASE), next-generation firewalls, VPNs, content delivery networks (CDNs), load balancers, subnetting, and cloud security guardrails. 6+ years of experience in the design and architecture of enterprise-level technical stacks, including VPNs, CDN solutions, Load Balancers, Subnetting, Next-Generation firewall design, and highly scalable security solutions like Secure Access Service Edge (SASE) technologies.

3 days ago

Network Security Engineer (Firewall & Vulnerability Management) - Enterprise Firewall Engineering/Check Point, Endpoint Security Administration Peraton

Washington, D.C.

$135,000–$216,000 / year
Full time

Serving as the single dedicated technical engineering resource , the selected candidate will independently execute ten security improvement projects spanning vulnerability management, endpoint protection, patch management, firewall and network security, identity and access management, and security governance. Responsibilities extend beyond identifying vulnerabilities and recommending corrective actions to directly implement approved security configuration changes, executing technical remediation, optimizing security platforms, and delivering measurable improvements to the organization's security posture.

3 days ago

Networking Security Engineer II CACI

Columbia, Maryland

$120,800–$265,800 / year

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. Job Title: Networking Security Engineer IIJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * * The Opportunity:

11 days ago

Network Engineer- -TS/SCI w/ Poly Security Clearance Required Power3 Solutions

Laurel, Maryland

In lieu of a Bachelor's degree, four (4) additional years of experience in Network Engineering disciplines with a high school diploma. We pride ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility.

16 days ago

Sr. Network Engineer (Cisco & Network Security) Themis Insight

Fort Meade, MD

Provides assistance in all aspects of network management from network design through implementation, maintenance, and upgrading of existing networks; Analyzes design, specifications, and related documents; Implements communication system requirements to support the distributed functionality of a software engineering environment; Analyzes network characteristics (e.g. Implement specific network solutions to support server requirements to include load-balancing, VPN's, firewall contexts, Traffic Shapping Voice over IP (VOIP), GRE Tunneling, IP Security (IPSec) IP Encryption and Media over IP (MoIP), and network address translation (NAT) where appropriate.

13 days ago

Principal Network Security Engineer JCS Solutions LLC

Ft Meade, MD

Full time

Network Security Engineering and Architecture Design, engineer, and implement enterprise network security architectures spanning next-generation firewalls, intrusion detection and prevention systems, web and TLS proxies, VPN and encryption services, network access control, DNS security, and east-west security controls. This role serves as a senior technical leader responsible for advancing network security architecture through strategic engineering efforts that strengthen segmentation, access control, zero-trust initiatives, resiliency, and enterprise-wide security posture.

15 days ago

Network Security Engineer Twitter

Washington, DC

$100,000–$258,000 / year

Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. ITAR REQUIREMENTS: To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

11 days ago

Network Security Engineer Booz Allen Hamilton Inc

fort meade, MD

$99,000–$225,000 / year

3+ years of experience with firewall and enterprise security design, including device hardening, intrusion detection and intrusion prevention systems, SIEM, firewalls, internet protocol security, and vulnerability assessment. This is your chance to share your experience with backbone networks, cloud technologies, and core networking while broadening your security and network engineering work.

11 days ago

Cisco Network Security Engineer/ Senior Consultant Deloitte

Washington, DC

$105,400–$207,800 / year

3+ years of experience with Cisco Identity Services Engine (ISE) 802.1X Network Access Control (NAC), guest lifecycle management, profiling policies, TrustSec segmentation, and Cisco Firepower capabilities including intrusion prevention system (IPS), malware protection, Uniform Resource Locator (URL) filtering, Domain Name System (DNS)-based security, Secure Sockets Layer/Transport Layer Security (SSL/TLS) decryption, and cloud firewall deployments in Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Platform (GCP). 5+ years of experience designing, deploying, and managing Cisco Firepower Threat Defense (FTD) and Firepower Management Center (FMC) in enterprise environments, including physical appliances, virtual instances, and cloud-delivered Firewall Management Center (cdFMC).

15 days ago

Network Engineer 2| TS/SCI w/ poly Security Clearance Tulzi Technologies

Annapolis Junction, Maryland

$135,000–$145,000 / year

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) . Tulzi Technologies, LLC (Tulzi) prides itself on an open, and honest culture in the workplace which builds morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility.

23 days ago

Network Engineer 3- -TS/SCI w/ Poly Security Clearance Required Tulzi Technologies

Laurel, Maryland

Tulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. In lieu of a Bachelor's degree, four (4) additional years of experience in Network Engineering disciplines with a high school diploma.

29 days ago

Network Security Engineer (Firewall & Vulnerability Management) Peraton Inc

Washington, DC

$135,000–$216,000 / year

Serving as the single dedicated technical engineering resource, the selected candidate will independently execute ten security improvement projects spanning vulnerability management, endpoint protection, patch management, firewall and network security, identity and access management, and security governance. Responsibilities extend beyond identifying vulnerabilities and recommending corrective actions to directly implement approved security configuration changes, executing technical remediation, optimizing security platforms, and delivering measurable improvements to the organization''s security posture.

2 days ago

Network Security Engineer SpaceXSI

Washington, DC

$100,000–$258,000 / year

Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.

2 days ago

IT Network Security Team Lead GD Information Technology

Bethesda, Maryland

To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. This role is responsible for overseeing the implementation and enforcement of cybersecurity policies, managing a team of IT security professionals, and coordinating cross-functional efforts to protect the integrity of NLM’s infrastructure.

2 days ago

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Network Security Jobs in Montpelier, MD

Senior Security Engineer-Network Security Assessment & Post-Quantum Cryptography (PQC) - Hybrid ATD Technology LLC

Cyber Zscaler Network Security Engineering Manager / Manager, Strategy, Growth, And Transformation Deloitte

Network Security Architect Lead - Principal Amentum

Cyber Zscaler Network Security Engineer / Senior Consultant, Strategy, Growth, And Transformation Deloitte

Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, And Transformation Deloitte

Cyber Network Security Architecture - Senior Manager Deloitte

Cyber Network Security Architecture - Manager Deloitte

Network Security Engineer (Firewall & Vulnerability Management) - Enterprise Firewall Engineering/Check Point, Endpoint Security Administration Peraton

Networking Security Engineer II CACI

Network Engineer- -TS/SCI w/ Poly Security Clearance Required Power3 Solutions

Sr. Network Engineer (Cisco & Network Security) Themis Insight

Principal Network Security Engineer JCS Solutions LLC

Network Security Engineer Twitter

Network Security Engineer Booz Allen Hamilton Inc

Cisco Network Security Engineer/ Senior Consultant Deloitte

Network Engineer 2| TS/SCI w/ poly Security Clearance Tulzi Technologies

Network Engineer 3- -TS/SCI w/ Poly Security Clearance Required Tulzi Technologies

Network Security Engineer (Firewall & Vulnerability Management) Peraton Inc

Network Security Engineer SpaceXSI

IT Network Security Team Lead GD Information Technology

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