Principal Windows Systems Administrator Jobs

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Systems Administrator

Robert Half

Saline, Michigan, USA

Full-time

Description We are looking for a skilled Systems Administrator to join our team in Saline, Michigan. This Contract-to-permanent position offers an exciting opportunity to manage and maintain critical IT infrastructure while ensuring system reliability and security. The ideal candidate will bring expertise in server administration, network troubleshooting, and virtualization technologies to support our organization's operational goals. Responsibilities: Manage and maintain server hardware and so

Systems Administrator - Hunt Valley

Textron, Inc.

Maryland, USA

Full-time

Job Summary: System Administrators collaborate with a diverse team to support classified information systems. Success in this role means you can develop, implement, and maintain secure, cost-efficient environments supporting the warfighters. Program teams rely on your collaboration and guidance to define computing requirements and develop solutions to solve infrastructure problems. Knowledge of Windows and Linux desktop and server operating systems is required. The System Administrator is respon

Systems Administrator (Trillium, Unix, Linux and Tomcat)

SAIC

Ashburn, Virginia, USA

Full-time

Job ID: 2504336 Location: ASHBURN, VA, US Date Posted: 2025-04-07 Category: Software Subcategory: SW Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: Yes Description Position Summary We are currently seeking a motivated, career and customer-oriented Systems Administrator (Senior) to join our team in Ashburn, VA to begin an exciting and challenging c

Systems Administrator

Leidos

Honolulu, Hawaii, USA

Full-time

The Leidos National Security Sector is seeking a highly skilled PACAF C5ISRO Systems Engineer to join our team at Hickam Air Base, Hawaii. This position demands a seasoned professional capable of analyzing, designing, and implementing C5ISR JWICS systems capabilities. The successful candidate will also be responsible for developing integration and implementation plans, evaluating both Commercial and Government Off-The-Shelf (COTS/GOTS) hardware and software applications, and supporting system op

Principal IT Systems Engineer - SecOps

Regeneron Pharmaceutical

Rensselaer, New York, USA

Full-time

We are seeking a highly skilled and proactive Principal IT Systems Engineer (SecOps) to join our dynamic team. The role will play a critical role in maintaining the reliability, availability, and performance of our IOPS IT server and infrastructure environments, as well as managing Identity and Access Management (IAM) solutions. This position is instrumental in ensuring the stability and operational efficiency of our IT infrastructure while strictly adhering to Good Manufacturing Practice (GMP)

Sr. Systems Administrator

MSITEK LLC

Herndon, Virginia, USA

Contract

- 5+ years of experience in an IT enterprise System Admin role or Cloud Admin position - 4+ years with PowerShell scripting for automation, extremely fluent in PowerShell and command lines - Experience with Windows firewalls - Expert level Microsoft Azure Administrator - Expert level Windows admin skills (Active Directory, DNS, Group Policy) - Security Clearance or ability to get a Clearance Nice to Have Skills and Experience -Bachelors in Computer Science - Professional industry certifications

Systems Administrator, Senior (MSO)

General Dynamics Information Technology

Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: IT Networking, Networking, Networking Support Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Systems Administrator/Mission Support Operator - $10K Sign-on bonus * Classified work and therefore must be on-

Systems Administrator, Senior (MSO)

General Dynamics

Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: IT Networking, Networking, Networking Support Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Systems Administrator/Mission Support Operator - $10K Sign-on bonus *Classified work and therefore must be on-si

Systems Administrator- TS/SCI with Polygraph

General Dynamics Information Technology

Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT), Linux, System Administration Certifications: Security+ CE - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a Sys

Systems Administrator- TS/SCI with Polygraph

General Dynamics

Springfield, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Information Technology (IT), Linux, System Administration Certifications: Security+ CE - CompTIA Experience: 1 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a Syste

ACAS Cyber Systems Administrator - Hanscom AFB

Apex Systems

Bedford, Massachusetts, USA

Full-time

Job#: 2065926 Job Description: Good Morning Team, Peraton is looking to add (11) ACAS Cyber Systems Administrators to their team in multiple locations supporting the SIPRnet contract. (6) positions will be the Mid BR listed below and (5) will be the Sr. BR listed below. This position is contingent upon award which will be before March 1, 2025. The HM wants to review candidates and is willing to extend offers contingent on award. ACAS Cyber System Administrator BH #: A, B, C or D req: D Why?

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Honolulu, Hawaii, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Honolulu, HI 96815 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, sec

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Georgia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Fort Eisenhower, GA 30905 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliabili

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

San Antonio, Texas, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION San Antonio, TX 78208 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability,

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Reston, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Tysons, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Aurora, Colorado, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, secur

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Annapolis, Maryland, USA

Full-time

Network Engineer / Systems Administrator (SA) 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 highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliab

Network Engineer / Systems Administrator (SA)

Cymertek Corporation

Chantilly, Virginia, USA

Full-time

Network Engineer / Systems Administrator (SA) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a highly skilled and proactive **Network Engineer / Systems Administrator (SA)** to join our team and play a pivotal role in maintaining and enhancing our IT infrastructure. In this role, you will be responsible for designing, implementing, and managing network systems, as well as ensuring the reliability, se

Systems Administrator- Active Directory

Esri

Redlands, California, USA

Full-time

Overview Seeking highly motivated IT professional that's looking for a challenging position with a variety of responsibilities. We have an opening that will allow you to utilize your technical expertise to help build, secure, and grow enterprise scale infrastructure in a fast-paced environment. If you have a drive for success and work well with a diverse team, let's talk, and see if Esri is the right fit for your career. Responsibilities Provide support and maintenance for Microsoft Active Dir