UNKNOWN

FEED

Responsibilities: Enterprise Infrastructure & Systems Administration Administer, maintain, and optimize enterprise infrastructure, including DHCP, DNS, TCP/IP, Active Directory, Azure AD, Microsoft 365, virtualization, storage, and cloud environments. Summary: The Senior Network & Systems Administrator is responsible for maintaining the enterprise server systems and applications including monitoring and reporting for adherence to the organization’s security policies to ensure compliance.

Miami Dolphins and Hard Rock Stadium

Senior Network & Systems Administrator

sourcestack_via_bold

Working technical competency in one or more of the following supported platforms: Microsoft Windows Server, Red Hat Enterprise Linux servers, MS Hyper-V/VMWare/ESx/Xen Hypervisors, Enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, Group Policy management and configuration. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.".

Our Mission
Our mission is empowering our nation through a diverse and skilled workforce securely delivering innovative technology, consulting services and digital solutions for our customers’ mission success, every day.

Our Vision
Our vision is Securing the Future as the most trusted partner for U.S. Defense, Intelligence and Federal Civilian customers through the power of One ManTech. When these agencies think of an essential partner for their national and homeland security needs, they think ManTech.

Our Values
Our values are grounded in a bedrock of truth, integrity and caring for each other and the mission. We hold steadfast to:

• TRUST – We earn and protect the trust of our customers, employees and investors through an enduring foundation of respect, fairness, credibility and honoring our commitments, always.

• INCLUSION – We are an inclusive, diverse and talented workforce with a passion for mission success, intellectual capital, creativity and integrity. Our high ethical standards and investment in our people build confidence with our customers.

• QUALITY– We deliver exceptional quality to customers through differentiated technology solutions and an uncompromising focus on excellence, value and innovation.

ManTech International Corp

Systems Administrator

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Prior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense enterprise technical environments. Responsibilities include but are not limited to: Installing, configuring, maintaining, and troubleshooting enterprise server hardware, operating systems, and virtualized infrastructure across headquarters systems.

HQ Systems Administrator

ADAPTED_NOW

Kratos has an exciting opportunity for an onsite Security System Administrator .The Security System Administrator will work closely with cybersecurity compliance personnel to implement security controls, maintain secure configurations, identify and remediate vulnerabilities, support security assessments, and provide technical evidence demonstrating effective implementation of security requirements derived from the Risk Management Framework (RMF) and Cybersecurity Maturity Model Certification (CMMC). Kratos is valued for our ability to design and deliver leading edge, resilient solutions for aerospace communication, control, awareness and mission success across a continuum of offeringsfrom commercial to tailored custom solutions and integrated programs.

Kratos Defense

Senior Security System Administrator

Pereless

As part of our commitment in creating a fair, efficient, and consistent hiring process we may use artificial intelligence (AI) to help our recruiting teams organize, summarize, and analyze information provided by candidates, including resumes, application responses, and other materials submitted during the application process. This role primarily supports desktops, user platforms, and administrative systems while assisting senior infrastructure and network engineers as needed.

Catholic Health Services

System Administrator (Onsite)

ea_via_bold

This role independently handles complex assignments, serves as a technical escalation point for network and systems issues, and provides guidance and coaching to less experienced administrators. Provide specialized technical expertise in researching and resolving complex technology infrastructure problems which may involve coordination of hardware and software vendor support.

Summit Consulting, Inc. is a leading direct marketing and consultative sales agency based in the Baltimore Metro area. Committed to building brand value for our clients and customers, our innovative marketing services have allowed us to expand nationwide.

We work with global industry leaders to provide the most efficient direct sales and marketing strategy, convert that strategy to actions and deliver the sustainable success they desire. Our team is able to acquire quality, long-term customers for our clients while driving revenue for Summit Consulting and our big box retail partners, allowing for a domino effect of success.

Summit Consulting

Senior Systems/Network Administrator

The role manages routing, switching, wireless networks, storage networking, and server connectivity while ensuring high availability, security, and performance across enterprise environments. The Network Administrator (Intermediate/Senior) is responsible for administering, maintaining, securing, and optimizing enterprise network infrastructure supporting mission-critical operations.

Vets Hired

Network Administrator (Intermediate/Senior)

The Network Administrator (Intermediate/Senior) is responsible for administering, maintaining, securing, and optimizing enterprise network infrastructure supporting mission-critical operations. The role manages routing, switching, wireless networks, storage networking, and server connectivity while ensuring high availability, security, and performance across enterprise environments.

Network Administrator

Manatal

System Administrator

FULL_TIME

Overview: DecisionPoint seeks a Senior System Administrator to provide senior-level systems administration, operations, maintenance, and technical support for Global Information Technology Support Services supporting the Military Surface Deployment and Distribution Command (SDDC) Deputy Chief of Staff for Information Management (G6). Administer Active Directory and core enterprise services, including user and computer accounts, security groups, permissions, Group Policy, DNS, DHCP, SMTP, file shares, certificate services, DoD PKI, and email/account request processes.

DecisionPoint | Cortek

System Administrator - Senior

[AW]-iCims

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

HOUR

StratAcuity Staffing Partners Inc

IT Systems Administrator-Level 2 - Experienced (6 - 10 Years)

June 23, 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Job Description: POSITION SUMMARY: The Windows Systems Administrator is responsible for the continuous availability, performance, and security of corporate IT Windows servers, virtualization platforms, and supporting infrastructure across on-premises and cloud environments. This role balances day-to-day operational support with proactive maintenance to uphold strict service level agreements (SLAs), optimize user performance, and sustain a resilient 24/7 enterprise infrastructure.

YEAR

Cogeco Inc

Administrator, Systems

Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems, and information technology related responsibilities including design, development, and analysis of computer systems or programs based on and related to user or system design specifications; applying systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional specifications. You will support cost and risk, supportability, and effectiveness analyses while helping resolve incidents, execute changes, and improve operational processes that directly impact mission success.

Headquartered in Bethesda, Maryland, Lockheed Martin is a global security and aerospace company that employs approximately 125,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services.
	Our Mission:&nbsp; We solve complex challenges, advance scientific discovery and deliver innovative solutions to help our customers keep people safe and provide them essential services. 
	
	Our Vision:&nbsp;Be the global leader in supporting our customers to strengthen global security, deliver citizen services and advance scientific discovery.
	Our Values:
	
	<li style="margin: 0px 0px 0px 15px;">Do What's Right</li>
	<li style="margin: 0px 0px 0px 15px;">Respect Others</li>
	<li style="margin: 0px 0px 0px 15px;">Perform With Excellence</li>

Lockheed Martin Corporation

Classified IT System Administrator, Sr / Onsite: PA, CO, CA, AL Or FL

GeoZone Definition: GeoZones are geographic groupings created by Lockheed Martin to align compensation ranges with regional labor markets and cost-of-labor differences across the United States. This team covers Virtualization, Server OS (Windows, RHEL), Database (SQL Server, Oracle), Patching and Content Management (Satellite) product development, maintenance and operational support.

Database Administrator Sr - Infrastructure As Code / Full Stack Engineer

Lockheed Martin Corp

Database Administrator Sr - Infrastructure as Code / Full Stack Engineer

Occasionally, movement that requires twisting at the neck and/or trunk more than the average person, squatting/ stooping/kneeling, reaching above the head, and forward motion will be required. Install, configure, and support an organization's Windows and Linux Servers local area network (LAN), wide area network (WAN), and Internet systems or a segment of a network system.

ISYS, Incorporated (dba ISYS Technologies) is an award winning Woman-Owned Small Business providing Engineering and Information Technology (IT) services to Federal, State, and Local government. Our mission is to provide the highest quality service possible at the best value. We are a customer-focused and results-oriented company. ISYS provides innovative and cost-effective services that fulfill the needs of our Government Customers and Industry Partners as demonstrated by our outstanding reputation.

			Headquartered in Colorado, ISYS serves key national customers, to include the Department of Defense, Department of Homeland Security, National Aeronautics and Space Administration, and several Federal Civilian Agencies.

			We are committed to the mission success of our customers.

Isys Technologies

Systems/Network Administrator

Occasionally, movement that requires twisting at the neck and/or trunk more than the average person, squatting/ stooping/kneeling, reaching above the head, and forward motion will be required. I2X Technologies considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer.

Catholic Health Services Inc

SYSTEM ADMINISTRATOR (ONSITE)

Working technical competency in one or more of the following supported platforms: Microsoft Windows Server, Red Hat Enterprise Linux servers, MS Hyper-V/VMWare/ESx/Xen Hypervisors, Enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, Group Policy management and configuration. + Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.”.

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Senior Network & Systems Administrator Miami Dolphins and Hard Rock Stadium

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System Administrator (Onsite) Catholic Health Services

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Network Administrator (Intermediate/Senior) Vets Hired

Network Administrator Vets Hired

System Administrator ManTech International Corp

System Administrator - Senior DecisionPoint | Cortek

IT Systems Administrator-Level 2 - Experienced (6 - 10 Years) StratAcuity Staffing Partners Inc

Systems Administrator Leidos

Administrator, Systems Cogeco Inc

Classified IT System Administrator, Sr / Onsite: PA, CO, CA, AL Or FL Lockheed Martin Corporation

Database Administrator Sr - Infrastructure As Code / Full Stack Engineer Lockheed Martin Corporation

Database Administrator Sr - Infrastructure as Code / Full Stack Engineer Lockheed Martin Corp

Systems/Network Administrator Isys Technologies

Systems Administrator Isys Technologies

SYSTEM ADMINISTRATOR (ONSITE) Catholic Health Services Inc

System Administrator ManTech

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