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Network Security Jobs in Silver Spring, MD

Jobs

Information Systems Security Engineer (ISSE) - Red Hat Enterprise Linux (RHEL) AMERICAN SYSTEMS

Arlington, Virginia

Full time

Overview: AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE ) to support Red Hate Enterprise Linux systems in a High Performance Computing (HPC ) environment in Arlington, VA . Responsibilities: As an Information Systems Security Engineer (ISSE) at AMERICAN SYSTEMS, you will: Design and implement enterprise-level security architectures for RHEL systems in a High Performance Computing (HPC) SAP environment.

28 days ago

AI Security Engineer Appian

Mclean, VA

$100,000–$200,000 / year

Education: Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 2 years of experience developing AI and ML algorithms or technologies, OR a Master's degree in a related field plus at least 1 year of experience. Growth Opportunities: Appian provides a diverse array of growth and development opportunities, including our leadership program tailored for new and aspiring managers, a comprehensive library of specialized department training through Appian University, skills based training, and tuition reimbursement for those aiming to advance their education.

28 days ago

Principal Network Engineer/Trainer (Onsite) RTX

Maryland

We are seeking a highly skilled Network Implementation Engineer & Team Trainer to join our dynamic and growing Implementation team—a tight-knit group of innovators deploying high-impact network solutions across the globe. If you thrive on ownership, live for solving complex network problems, and are passionate about both hands-on engineering and team development, this is your opportunity to make a global impact while growing your technical expertise in a dynamic, future-focused environment.

8 days ago

Sr. Cloud Network Engineer Global C2 Integration Technologies

Reston, VA

Full time
Quick Apply

Key Responsibilities· Design and implement hybrid network architectures spanning field sites, centralized environments, and AWS.· Build and modernize VPC-based network fabrics using AWS services.· Integrate physical firewalls, routed networks, and VPN-connected sites with virtual cloud networking and security appliances.· While performing the duties of this job the employee is regularly required to climb, bend, stretch, walk, sit use hands to handle or feel; frequently use fingers to type; talk and hear; occasionally stand, kneel, stoop, crouch, bend, twist or reach out; may require lifting or moving 10 lbs; frequently required to reach with hands and arms.

30+ days ago

Senior Security Software Engineer, Emerging On-prem AI infrastructure Google LLC

Reston, VA

Were looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. From software to hardware our teams are shaping the future of world-leading hyperscale computing, with key teams working on the development of our TPUs, Vertex AI for Google Cloud, Google Global Networking, Data Center operations, systems research, and much more.

3 days ago

Security Endpoint Engineer AHU Technologies

Washington, District of Columbia

$52–$58 / hour

Experience and Skills: Specific knowledge, skills, and abilities required by the incumbent to successfully fulfill the Major Duties and perform the Tasks required for this position include: · 3+ years Performing successful Windows OS updates · 6+ years total progressive IT experience · 5+ years of Endpoint Management and Security · 3+ years Troubleshooting complex experience in endpoint engineering with PowerShell, VBScript and batch scripting. Complete Description: The Endpoint Engineer/Administrator will be intimately familiar with next generation Endpoint management/protection platforms including but not limited to Microsoft Intune, Tanium, and SCCM provisioning and patching management, Jamf macOS device management and CrowdStrike security.

30+ days ago

Staff Cyber Security Engineer - TS/SCI Xcelerate Solutions LLC

Support Government cybersecurity officials & program personnel in preparing cybersecurity packages, including Interim Authority to Test (IATT) packages, Authority to Operate (ATO) packages, and Change Requests (CRs). Cloud certifications such as AWS Solutions Architect, AWS Security Specialty, Kubernetes and Cloud Native Associate (KCNA), Certified Kubernetes Administrator (CKA), Certified Kubernetes Security Specialist (CKS).

11 days ago

Network Engineer Quantum Sky

Suitland, Maryland

$125,000–$150,000 / year
Full time

Ensure customer requirements align with architecture designs and work closely with service delivery group to implement network upgrades, modernization efforts, equipment refresh support, and new network turn-ups. Extensive knowledge of enterprise WAN/LAN, OSPF, routers, switches, firewalls, cabling, cryptographic equipment (e.g., TACLANE encryptors), QoS, VPNs, COOP disaster recovery, and related physical hardware.

21 days ago

Network Engineer (Hybrid - Herndon, VA) Serco Group plc

Annapolis, MD

This position is hybrid, reporting to the Herndon, VA office, and will support a geographically distributed infrastructure spanning on-premises, Azure Commercial, and Azure GCC High (GCCH) environments, with a strong focus on security and compliance, including CMMC requirements. Eligible employees also gain access to a wide range of benefits from comprehensive health coverage and health savings accounts to retirement plans, life and disability insurance, and time-off programs that support work-life balance.

8 days ago

Project Manager – Network Infrastructure (Offshore Development Center) ConsultNet

Washington, DC

For over 25 years, we have connected thousands of consultants with meaningful roles through a personal, communication-driven approach, partnering with a diverse client base to build high-performing teams and create lasting impact. Proven experience as a Project Manager delivering network infrastructure projects (office buildouts, data centers, or similar environments).

30+ days ago

Senior Network Engineer (TS/SCI with Poly) Braxton-Grant Technologies

Columbia, Maryland

$140,000–$220,000 / year

Experience deploying, operating, managing, and monitoring network security devices and systems, with advanced knowledge of technologies including application, proxy, and Next Generation Enterprise firewalls; Control Center Management appliances; IPsec, SSL, and SSH; Cisco Secure Access Control Server (ACS) and Cisco Security Manager (CSM); Cisco VPN and firewall solutions; web proxies; load balancers; and related LAN/WAN network hardware and software. Job Title: Senior Network Engineer Location: Columbia, MD Employment Type : Full Time Work Arrangement : On-Site Work Site : Customer Site Shift : Must be willing to work Mid Shift Security Clearance : Current Department of Defense (DoD) Top Secret- Sensitive Compartmented Information (TS/SCI) with Polygraph is required.

19 days ago

Sr. Principal Network Engineer Clarity

Washington, DC

$120,000–$315,000 / year

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) to transform data into actionable intelligence, ensuring mission success in an evolving world. Hands-on experience with cloud networking in AWS, Azure, or private cloud environments, with strong knowledge of VPCs, security groups, and hybrid cloud networking (Direct Connect, ExpressRoute).

30+ days ago

Security Engineer, Nation State Meta Platforms Inc

Washington, DC

People who choose to build their careers by building with us at Meta help shape a future that will take us beyond what digital connection makes possible today-beyond the constraints of screens, the limits of distance, and even the rules of physics. You'll also work alongside Security Engineers and Analysts to identify critical assets and TTPs, assess the top risks, and evaluate potential attacks against Meta systems.

7 days ago

Communications Systems Engineer - Offensive Security Engineer LV8D Solutions

Chantilly, VA

LV8D Solutions is an elite Systems Engineering and Technical Advisory (SETA) company that delivers advanced systems engineering, integration, acquisition, mission operations, network communications, and cybersecurity support to our defense and intelligence customers. We specialize in every aspect of our customers’ space and ground mission systems while offering exceptional work-life balance and an exemplary compensation and total rewards package designed to recruit, train, and retain top talent and committed to national defense and career growth.

17 days ago

Remote Pre-Sales Security Systems Engineer - Access Control & CCTV i2G Systems

Sterling, Virginia

Remote

Kastle Systems Makes Strategic Investment in i2G Systems, Strengthening Leadership in Serving High-Security Industries and High-Value, Large Scale Facilities" Read More About the Partnership Here: https://www.kastle.com/kastle-systems-makes-strategic-investment-in-i2g-systems-strengthening-leadership-in-serving-high-security-industries-and-high-value-large-scale-facilities/ . This remote Pre-Sales Security Engineer position will provide engineering design and support for security solutions for new and existing clients while working alongside internal teams, external teams, clients, and subcontractors to ensure project success.

19 days ago

Information Systems Security Engineer ECS Federal LLC

Washington, DC

$120,000–$150,000 / year

Linux & Endpoint System Hardening: Maintain baseline configuration compliance and host-based security across Red Hat Enterprise Linux (RHEL) server platforms, Windows infrastructure, and enterprise Virtual Desktop Infrastructure (VDI) (VMware Horizon / Citrix), mitigating vulnerabilities across shared and non-persistent virtual pools. Virtualization & Hypervisor Security: Apply and validate DISA Security Technical Implementation Guides (STIGs) and hardening benchmarks across enterprise hypervisors (VMware vSphere/ESXi), virtual machines, management planes (vCenter), and software-defined storage backends.

4 days ago

Senior Specialist Field Engineer, Federal Security CoreWeave Inc

Washington, DC

$165,000–$220,000 / year

Translate federal security and compliance requirements collaboratively with our federal compliance team; FedRAMP Moderate/High, FISMA, NIST SP 800-53 and 800-171, DoD Cloud Computing SRG Impact Levels (IL4/IL5/IL6), CMMC, and DISA STIGs into concrete Kubernetes and GPU infrastructure architecture and controls. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.

30+ days ago

Information Systems Security Engineer (ISSE) Synergy ECP

Columbia, 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. Support security authorization activities in compliance with NSA/CSS Information System Certification and Accreditation Process (NISCAP) and DoD Information Assurance Certification and Accreditation Process (DIACAP) process, the NIST Risk Management Framework (RMF) process, and prescribed NSA/CSS business processes for security engineering.

30+ days ago

Network Engineer Level 3 Verite Group, Inc.

Fort Meade, MD

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). What You'll be Owning: We are seeking a Network Engineer for a funded role to provide Network Communication services to enhance and complement High Performance Computing (HPC) sustainment capabilities.

30+ days ago

Network and Cybersecurity Engineer Amentum Services Inc

Chantilly, VA

$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. Purpose and Impact: Amentum/Secure Networking Solutions is seeking a Network and Cybersecurity Engineer to ensure the security, accreditation, and compliance of Wireless Intrusion Detection System (WIDS) environments of Amentum's Skywalker program.

30+ days ago

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Network Security Jobs in Silver Spring, MD

Information Systems Security Engineer (ISSE) - Red Hat Enterprise Linux (RHEL) AMERICAN SYSTEMS

AI Security Engineer Appian

Principal Network Engineer/Trainer (Onsite) RTX

Sr. Cloud Network Engineer Global C2 Integration Technologies

Senior Security Software Engineer, Emerging On-prem AI infrastructure Google LLC

Security Endpoint Engineer AHU Technologies

Staff Cyber Security Engineer - TS/SCI Xcelerate Solutions LLC

Network Engineer Quantum Sky

Network Engineer (Hybrid - Herndon, VA) Serco Group plc

Project Manager – Network Infrastructure (Offshore Development Center) ConsultNet

Senior Network Engineer (TS/SCI with Poly) Braxton-Grant Technologies

Sr. Principal Network Engineer Clarity

Security Engineer, Nation State Meta Platforms Inc

Communications Systems Engineer - Offensive Security Engineer LV8D Solutions

Remote Pre-Sales Security Systems Engineer - Access Control & CCTV i2G Systems

Information Systems Security Engineer ECS Federal LLC

Senior Specialist Field Engineer, Federal Security CoreWeave Inc

Information Systems Security Engineer (ISSE) Synergy ECP

Network Engineer Level 3 Verite Group, Inc.

Network and Cybersecurity Engineer Amentum Services Inc

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