Network Administrator
Mantech
MANTECH seeks a motivated, career- and customer-oriented Network Administrator with a focus on Cisco Networks to join our team in Laurel, MD . You will be part of a mission-driven team delivering enterprise infrastructure capabilities to support a global workforce engaged in national defense operations. This position is part of the Enterprise Infrastructure Services (EIS) organization—responsible for MPO’s Enterprise Information Technology (EIT), the backbone platform supporting all enterprise users. You will work with customers, Integrated Product Teams (IPTs), and vendors to deliver secure and reliable network services across Data Center & Compute environments. Responsibilities Maintain and upgrade network infrastructure, including routers and switches Update and configure antivirus software and other tools to secure the network Apply Security Technical Implementation Guide (STIG) updates to switches and follow Software Test and Evaluation (STE) policies Design and plan Cisco NEXUS network infrastructure, including setup and ongoing maintenance Configure Remote Authentication Dial-In User Service (RADIUS) for switch administration Use network monitoring and management tools such as Solarwinds to oversee network performance Must be willing to work a flexible schedule between 6:00am-6:00pm and may be assigned to an evening patching schedule Minimum Qualifications Bachelor’s degree in a technical discipline from an accredited college or university and Twelve (12) years of experience as a Network Administrator supporting programs and contracts of similar scope, type, and complexity. In lieu of a Bachelor’s degree, three (3) years of additional Network Administration experience with an Associates degree may be substituted OR eight (8) years of additional experience and a High School Diploma Demonstrated experience downloading software and upgrading Cisco switches and firewalls Strong technical background in Cisco FirePower Firewalls IAT II certification (DoD 8140 required within 60 days of starting employment. Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP) Preferred Qualifications Familiarity with configuring, scripting, and managing Unix, RHEL and Windows operating systems Familiarity with Scanboy Familiarity with JIRA ticketing system Familiarity with Enclave environments Familiarity with Solarwinds Familiarity using LatteART and XACTA Clearance Requirements Must have a current/active TS/SCI with Polygraph Physical Requirements The candidate must be able to move, carry, and deliver workstations from the office to the customer’s desk The person in this position must be able to remain in a stationary position 50% of the time Must communicate with co-workers, management, and customers via email, phone, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations. #J-18808-Ljbffr MANTECH
$95k - $115k
...this application due to a disability, contact this employer to ask for an accommodation or an alternative application process. Network Administrator Mount Laurel Township, NJ, US 3 days ago Requisition ID: 1050 Salary Range: $95,000.00 To $115,000.00 Annually We are...SuggestedTemporary workWork at officeLocal areaRemote workFlexible hours3 days per week$10k
...and problem resolution for all of the client/server/storage/network devices, etc. Provides Tier 2 (Escalation) and Tier 3 problem... ...level of system performance and availability Provide server administration with a variety of database products that include Oracle, SQL...SuggestedContract workTemporary workSummer workImmediate start$59.15k - $106.93k
COMFORT SYSTEMS is seeking a Systems Network Administrator in Laurel, MD, to join our National Security Sector. The successful candidate will support IT systems, manage networks, and provide outstanding customer service. Basic qualifications include at least 5 years of...Suggested$114k - $164k
...'s (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Senior System/Network Administrator with database experience to support the implementation, maintenance, and optimization of IT systems. This role is responsible...SuggestedContract workWork experience placementFlexible hours$95.5k - $181.7k
...owned subsidiary of Raytheon Technologies, is a leader in integrated C4I Network Centric Defense System solutions. Our Digital Technology team is growing and seeks a Senior Systems/Network Administrator with a current/active US Secret security clearance to work onsite in...SuggestedTemporary work- Job Summary Leidos has a new and exciting opportunity for a Systems Network Administrator in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA) . The Systems Network Administrator provides support for implementation, troubleshooting, and maintenance...Immediate startFlexible hours
- Systems Network Administrator (TS/SCI w/ Poly) Leidos is seeking a Systems Network Administrator / MIM Administrator (SME) to join our National Security Sector’s Cyber & Analytics Business Area (CABA). This team is at the forefront of security engineering, computer network...Immediate startFlexible hours
- A leading defense contractor in Maryland is seeking an experienced Systems Network Administrator to support IT systems implementations, troubleshooting, and maintenance. The right candidate will possess 10 years of experience as a system administrator and an IAT Level II...For contractorsFlexible hours
$59.15k - $106.93k
Description Systems Network Administrator (TS/SCI w/ Poly) Leidos - National Security Sector | Cyber & Analytics Business Area (CABA) Make a Difference in National Security Leidos has an exciting opportunity for a Systems Network Administrator to join our National Security...Immediate startMonday to FridayFlexible hours$116.35k - $210.33k
...Description Leidos is seeking an experienced Network Engineer to join our Defense Enclave Services (DES) team, supporting an... ...leadership, mentoring, and day-to-day direction to network engineers, administrators, and analysts while organizing team priorities, maintaining...Local areaImmediate startRemote work2 days per week- Belay Technologies in Maryland seeks a Senior System/Network Administrator with database experience to manage and optimize IT systems across client/server, storage, network, and mobile environments. You will handle daily operations and provide Tier 1/2 support. The role...
- IT Systems & Network Administrator Location: Baltimore, Maryland, United States (Hybrid - 3 days per week remote, 2 days in the office) Hudson Global Scholars (Operating LLC) provides the best U.S. education to school partners and students worldwide. As an IT Systems &...Work at officeRemote workWorldwide3 days per week
- MANTECH is looking for a motivated Network Administrator in Laurel, MD, focusing on Cisco Networks to join its team. You will support mission-driven operations that facilitate national defense. This role within the Enterprise Infrastructure Services requires the maintenance...
- Leidos is seeking a Systems Network Administrator to support critical national security systems in Laurel, Maryland. This role requires an active TS/SCI clearance and at least 10 years of experience in systems administration. The position offers competitive pay ranging...
$128k - $214.4k
...Network Architect Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security,... ...advice and guidance regarding network services to non-technical administrators and program managers, including program executives. Based...Hourly payLong term contractContract workTemporary workFor contractorsWork experience placementWork at officeLocal areaRemote work$146k - $234k
...Network Architect Job Locations US-MD-Laurel Requisition ID 2026-168343 Position Category Cyber Security Clearance Top Secret/SCI w/Poly Responsibilities Peraton is seeking a Network Architect t o perform as a consultant...Contract workTemporary workShift work- MANTECH is seeking a motivated Network Engineer for our Laurel, MD location. The role involves supporting complex customer networks and requires extensive experience with Cisco network equipment and associated technologies, ideally with a Bachelor’s degree and relevant...
- ...WITH FS POLYGRAPH - NO REMOTE WORK, MUST WORK ON SITE Database Administrator 2 Looking for a self‑motivated individual that wants to learn... ...Microsoft SQL Server and MariaDB databases on multiple networks using multiple architectures. The environment consists of databases...Remote work
$95k - $100k
...Job Description PostgreSQL DBA – Experienced Postgres Database Administrator to manage, maintain, and optimize PostgreSQL environments across on‑premises and cloud platforms. The ideal candidate will have a strong understanding of PostgreSQL architecture, clustering technologies...- Peraton in Annapolis Junction, MD is seeking a Network Architect to design the next-generation WAN and oversee full-spectrum network connectivity, security, and deployment. The role requires TS/SCI with polygraph, DoD8570 IAT Level 2, and extensive experience with TCP/IP...
$105k - $290k
The Johns Hopkins University Applied Physics Laboratory is seeking a Classified Network Engineer to manage six classified networks in Laurel, Maryland. Candidates should have a Bachelor's degree in Computer Science or a related field, alongside significant experience with...$104k - $166k
...wide, and highly reliable communications infrastructure by providing Architecture, Design, Development, Testing and Implementation of Network Services for Wide Area Networks (WAN), Campus Area Networks (CAN), Data Center Networks (DCN), and Satellite Communications (SATCOM...Contract workTemporary workShift work$104k - $166k
Peraton is looking for a Network Engineer (Deployment Technician) to join their team in Annapolis Junction, MD. The role involves providing network architecture, engineering, and deployment services, alongside ensuring secure network connectivity for various projects. Qualified...- Overview Are you passionate about building cutting edge infrastructure that empowers elite developers? We are looking for a visionary Lead HPC & Infrastructure Architect with an active TS/SCI with Poly clearance to design, build, and implement our next generation High...Shift work
$150k - $190k
...gratification. This premier program encompasses traditional software services including Systems Design and Engineering, Database Administration, Data Science and Knowledge Management, Enterprise Risk Management, Integration and Test, as well as Operations and Systems...Contract workTemporary workImmediate startFlexible hours- ...Oracle Database Administrator (DBA) LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented **Oracle Database Administrator...Temporary workFor contractorsImmediate startFlexible hours
$190k - $210k
...Senior Oracle Database Administrator Location: Annapolis Junction Compensation Range: $190 – 210k *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space...Weekend workAfternoon shift$133k - $144k
...maintain databases by a small, talented, and hardworking database administration team. This team creates, maintains, and troubleshoots Microsoft SQL Server and MariaDB databases on multiple networks using multiple architectures. The environment consists of databases...- ...Oracle DBA (Database Administrator) Annapolis Junction, MD CV Oracle DBA (Database Administrator) LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and proactive...
$104k - $166k
Database Administrator - AI/ML TS/SCI w Poly Job Location: Laurel, MD (US-MD-Laurel) Job Description Are you passionate about building cutting‑edge cloud solutions that support national security? Do you thrive in fast‑paced, mission‑driven environments? Peraton is seeking...Contract workShift work
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