Network Infrastructure/System Administrator CACI International IncNetwork Infrastructure/System AdministratorMclean, VA$120,800–$265,800 / yearPay 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. You will support the customer''s data communications network; maintain the network hardware and software as well as monitor the network to ensure availability to all system users; and perform the necessary maintenance to support network availability.
Network & Computer Systems Administrator (MDM / CSfC) CACI International IncNetwork & Computer Systems Administrator (MDM / CSfC)Virginia Beach, VA$75,200–$158,100 / yearRequirements: Professional certifications such as CompTIA A+, Network+, Microsoft Certified: Azure Administrator Associate, or Cisco CCNA are highly valued Experience with cloud-based systems, security audits, and disaster recovery planning is increasingly important. 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.
Cloud Systems Administrator – Senior Linux / AWS Application Sustainment PeratonCloud Systems Administrator – Senior Linux / AWS Application SustainmentHerndon, Virginia$135,000–$216,000 / yearFull timePeraton offers enhanced benefits to employees working on 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 participation in an attractive bonus plan. This position is best suited for a senior administrator who has supported secure, classified, mission-focused environments and is comfortable working across Linux, AWS, security compliance, and operational application support.
Network Engineer – Firewall & Load Balancing PeratonNetwork Engineer – Firewall & Load BalancingSpringfield, Virginia$104,000–$166,000 / yearFull timeThis role will provide hands-on support for mission critical network environments with a focus on F5 BIG-IP load balancing solutions, Palo Alto Next Generation Firewalls (NGFW), and Cisco Firepower Threat Defense (FTD) managed through Firepower Management Center (FMC). Administer and support F5 BIG-IP environments, including Local Traffic Manager (LTM), Global Traffic Manager (GTM/DNS), virtual servers, pools, iRules, SSL profiles, health monitors, and traffic policies.
Mid-Level Network Engineer (Cleared) IT Concepts IncMid-Level Network Engineer (Cleared)Springfield, VA$150,000–$160,000 / yearMinimum of 5 years of experience with the following: Experience in the use of Wireshark, Netscout, Riverbed, or tcpdump, and having the capability to analyze network packet data to optimize transport performance as part of advanced troubleshooting and problem resolution in a complex network with the Government or contracting leads. Embrace and participate in a culture of inquisitive knowledge to research the latest network tools and analytical capabilities to advance the ability to identify network performance issues from the server or client perspective and provide solutions to enable satisfactory user experience.
Sr Windows System Administrator Tyto Athene, LLCSr Windows System AdministratorChantilly, Virginia$180,000–$190,000 / yearFull timeOur expertise spans four core technology domains—Network Modernization, Hybrid Cloud, Cybersecurity, and Enterprise IT—empowering our clients with cutting-edge solutions tailored to their evolving needs. Strong understanding and hands-on experience with: Active Directory, Group Policy, DNS, Patching and update management, File Server administration, Exchange Server / Enterprise Email Systems.
Network System Administrator CymertekNetwork System AdministratorReston, VirginiaNetwork Engineer, Systems Administrator, IT Administrator, Network Security Administrator, Infrastructure Administrator, Network Operations Specialist, Cloud Systems Administrator, Network Analyst, Systems Engineer, IT Support Specialist, etc. Computer Science, Information Technology, Network Engineering, Cybersecurity, Systems Administration, Information Systems, Electrical Engineering, Telecommunications, Data Communications, Software Engineering, etc.
NewZERO TRUST (ZT) NETWORK ARCHITECTURE SME Hiring Our HeroesZERO TRUST (ZT) NETWORK ARCHITECTURE SMEArlington, VAFull timeSUBJECT MATTER EXPERTISE SME Area #1 – Network Security Architecture, ZTNA & Micro-Segmentation AdvisoryExpert-level mastery of network security architecture including ZTNA design, micro-segmentation strategy, and software-defined networking demonstrated through production deployment or senior advisory engagement. CompetenciesTechnical: CISA ZTMM v2.0 Networks pillar, NIST SP 800-207, TIC 3.0, Zscaler, Palo Alto Prisma, Cisco, ZTNA architecture, micro-segmentation, BGP/OSPF/VLAN, VPN, firewall policy design, cloud networking (VPC/VNet), NIST SP 800-53, AI-assisted analysis.
Opportunities in support to Infrastructure and Networks Operation Center PeratonOpportunities in support to Infrastructure and Networks Operation CenterHampton, Virginia$86,000–$138,000 / yearFull timeOur team delivers network operations, cybersecurity, systems administration, communications security, engineering, and program management services in direct support of national intelligence priorities. We are actively building a pipeline of cleared talent across many labor categories at our primary sites in Hampton, VA and Beale AFB, CA, with additional positions supporting CONUS and OCONUS locations.
Systems Administrator PeratonSystems AdministratorHerndon, Virginia$112,000–$179,000 / yearFull timePeraton offers enhanced benefits to employees working on 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 participation in an attractive bonus plan. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.
Network Security Engineer CymertekNetwork Security EngineerVirginiaCybersecurity Engineer, Network Security Specialist, Information Security Analyst, Security Operations Center (SOC) Analyst, IT Security Engineer, Network Security Administrator, Cyber Defense Analyst, Security Architect, Penetration Tester, etc. Computer Science, Information Technology, Cybersecurity, Network Engineering, Information Systems, Software Engineering, Electrical Engineering, Data Science, Computer Engineering, etc.
Senior Network Engineer F5 IncSenior Network EngineerReston, VA$161,600–$242,400 / yearThis role is primarily operations‑focused, encompassing ownership of day‑to‑day network reliability, performance, and incident response, while also incorporating engineering and build responsibilities as required - such as evolving routing architectures, developing and maintaining automation pipelines, troubleshooting complex network behaviors, and executing major initiatives across data centers and cloud platforms. We are seeking a Senior Network Engineer who brings deep technical expertise, sound operational judgment, and the ability to deliver reliable, scalable network services across multi-region and global environments, including regulated and compliant FedRAMP-authorized platforms.
Infrastructure Operations Manager Leidos Holdings Inc.Infrastructure Operations ManagerArlington, VA$154,050–$278,475 / yearThis role oversees Tier II and Tier III support for enterprise databases (Oracle, MS SQL Server), applications (web, client‑server, imaging/archiving, and specialized systems), and network infrastructure (LAN, WAN, MPLS, firewalls). The manager ensures that all enterprise infrastructure and applications meet defined service levels, directing geographically dispersed technical teams and guiding modernization efforts such as converged server/storage environments and cloud migrations.
Network Engineer (SME) Emergent TechnologiesNetwork Engineer (SME)Reston, VirginiaEmergent Technologies Inc., a veteran-owned IT and engineering solutions provider based in Herndon, VA, is seeking an experienced Senior Network Engineer or Network Subject Matter Expert (SME) to lead enterprise-scale networking initiatives. If you're a senior-level network expert seeking a leadership role in a dynamic, on-site setting — and want to make a lasting impact — we invite you to apply and grow your career with Emergent Technologies Inc.
Network Engineer UBERETHER INCNetwork EngineerSterling, VARemote$135,000–$155,000 / yearDeploy and maintain network infrastructure across AWS GovCloud and commercial cloud environments including Direct Connect, Transit Gateway, VPC architectures, and PrivateLink. Design and maintain compliant network architectures that support UberEther and customers in achieving and maintaining FedRAMP and DoW ATOs.
Network Engineer III CACINetwork Engineer IIISpringfield, Virginia$75,200–$158,100 / yearExperience with supporting IP services to connect to NIPRNET, SIPRNET, JWICS, and other external environmentsExperience with switching/LAN/L2 technologies, OSPF, BGP, MPLS, RSVP/LDP L2/3VPNs, VRFs, IKE/IPSec, GRE tunnels, MTU/MSS, Import/Export policies, IPv4, IKE/IPSEC, Multicast, COS/QOS, SNMP, SYSLOG, AAA, etc…. Experience with planning hardware for a new site installation or recap effort of existing equipment, planning projects, drafting network diagrams, drafting engineering configurationsExperience with troubleshooting network environments and providing regular updates.
RHEL Systems Administrator ManTech International CorpRHEL Systems AdministratorVA$107,900–$179,400 / yearThere 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. The RHEL Systems Administrator (Cameo Administrator) will leverage their strong technical background and knowledge to support system administration, configuration, and optimization efforts within an AWS cloud-based RAID (Research, Analytics, Innovation, and Development) environment consisting of EC2 instances, docker swarms, and containers.
Classified Systems Administrator And Isso CACI International Inc.Classified Systems Administrator And IssoHerndon, VA$103,800–$218,100 / yearPay 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. Serve as the onsite Data Transfer Agent (DTA), performing, documenting, and auditing authorized classified data transfers while maintaining removable media accountability.
Staff I/Staff II Linux Network Engineer VTGStaff I/Staff II Linux Network EngineerManassas, VirginiaFull timeOverview: VTG is seeking an experienced Staff I/Staff II Linux Network Engineer with 4+ years of hands-on expertise in designing, implementing, testing, monitoring, and troubleshooting LAN, VLAN and VxLAN environments. The successful candidate will take ownership of network implementation projects, provide technical support for complex network issues, and contribute to the continuous improvement of our networking environment.
Network Engineer Valiant Solutions, LLCNetwork EngineerSpringfield, VirginiaFull timeBy submitting your resume for this position, you authorize Valiant Solutions to share your resume, as well as, personal information included on the resume, with its subsidiaries, affiliates and teaming partners for the purpose of considering you for this position and other available positions requiring comparable skills, education and experience. 5000, Washington Technology’s Fast 50, and Washington Business Journal’s Best Places to Work in the D.C. area, Valiant Solutions prides itself on providing its employees with great benefits and career development opportunities.