Find your dream job NOW!

Click on Location links to filter by Job Title & Location.
Click on Company links to filter by Company & Location.
For exact match, enclose search terms in "double quotes".

Keywords: Senior Systems Administrator, Location: Washington DC

Page: 1

Network and Computer Systems Administrator

MANTECH seeks a motivated, career and customer-oriented Network and Computer Systems Administrator to join our team... computer systems within a virtual server environment (Hyper-V/Citrix) to support Oracle and Java development. Lead the...

Company: ManTech
Location: Washington DC
Posted Date: 06 Feb 2026

Senior Systems Engineer-SQL Server Database Administrator

Overview: The SQL Server Database Administrator - Senior is responsible for supervising, coordinating, designing... network hardware and software. The SQL Server Database Administrator - Senior provides direct support in the day-to-day...

Company: Cayuse Holdings
Location: Washington DC
Posted Date: 23 Feb 2026

Senior Discovery IT System Administrator (Top Secret Clearance Required)

Senior Discovery IT System Administrator Employment Type: Full-Time, Executive-Level Department: Legal CGS... is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist...

Posted Date: 22 Feb 2026
Salary: $160579.8 - 231948.6 per year

Senior Systems Administrator (Linux)

Responsibilities We are seeking a highly skilled Senior Systems Administrator – Linux to design, deploy, and maintain... with organizational and DoD security requirements. Support vulnerability remediation and patch management for Linux systems. High...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (Email Operations)

Responsibilities We are seeking a highly skilled Senior Systems Administrator – Email Operations to lead the... daily operations of enterprise email systems (Exchange, Exchange Online, Microsoft 365). Monitor service availability...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (IM and Collaboration)

Responsibilities We are seeking an experienced Senior Systems Administrator – Instant Messaging & Collaboration... to collaboration services. Act as the senior escalation point for outages, performance issues, and integration failures. Perform root...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (Disaster Recovery Operations)

Responsibilities We are seeking an experienced Senior Systems Administrator – Backup & Disaster Recovery to design... ensures that critical systems and data can be restored quickly, securely, and reliably in the event of system failures, cyber...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (Directory Services)

Responsibilities We are seeking an experienced Senior Systems Administrator – Directory Services to lead the design..., and 8 years of experience. 4 years of additional experience may be substituted in lieu of a degree. 7 years of systems...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (macOS)

Responsibilities We are seeking an experienced Senior Systems Administrator – Apple macOS to manage, secure... be substituted in lieu of a degree. 5 years of macOS systems administration experience in an enterprise environment...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (Virtualization)

Responsibilities We are seeking an experienced Senior Systems Administrator – Virtualization to design, deploy... operational documentation, runbooks, diagrams, and recovery procedures. Serve as a senior escalation point for complex...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (PKI)

Responsibilities We are seeking an experienced Senior Systems Administrator – PKI to architect, implement, and manage... (creation, distribution, rotation, renewal, revocation). Operations, Security & Compliance Ensure PKI systems meet security...

Company: Peraton
Location: Washington DC
Posted Date: 21 Feb 2026
Salary: $112000 - 179000 per year

Senior Systems Administrator (Remote App)

Responsibilities We are seeking an experienced Senior Systems Administrator – Remote Applications to design, manage... years of experience. 4 years of additional experience may be substituted in lieu of a degree. 7 years of systems...

Company: Peraton
Location: Washington DC
Posted Date: 20 Feb 2026
Salary: $112000 - 179000 per year

Cloud Systems Administrator Senior (Azure)

. Join GDIT as a Cloud Systems Administrator Senior and build an impactful career in enterprise IT, collaborating with people who... in database and data management Required Skills: Senior Level system administrator skills required in Linux/Windows...

Company: General Dynamics
Location: Washington DC
Posted Date: 15 Feb 2026
Salary: $96569 - 130651 per year

Senior Systems Administrator

Title: Senior Systems Administrator Location: Fort Lesley J. McNair, 300 5th Avenue, Washington, DC 20319 (Hybrid... or above Summary: We are seeking an experienced Cloud Systems Engineer to support enterprise IT infrastructure across Microsoft Azure...

Company: ETalentNetwork
Location: Washington DC
Posted Date: 23 Jan 2026

Senior Systems Administrator

US Citizenship Required: Yes Job Description: Senior Systems Administrator Own your opportunity to join our team, bringing... Administrator to fill a Core Services position supporting the NNSA (National Nuclear Security Administration). The Systems...

Company: General Dynamics
Location: Washington DC
Posted Date: 07 Jan 2026
Salary: $96569 - 130651 per year

Senior Financial Systems & Reporting Administrator

) is seeking a full-time Senior Financial Systems & Reporting Administrator to support our Finance department. Compensation.... The Senior Financial Systems and Reporting Administrator will work closely with the Director of Financial Reporting...

Location: Washington DC
Posted Date: 03 Dec 2025

Senior Learning Management System (LMS) Administrator

ASSYST is seeking a Learning Management System (LMS) Administrator to join our engineering team for our upcoming... project with our federal client in Washington DC The Learning Management System (LMS) Administrator is responsible for the...

Company: ASSYST, Inc.
Location: Washington DC
Posted Date: 31 Jan 2026

Senior Systems Administrator - COMSEC Specialist

. Evaluate the threats and vulnerabilities to information systems to ensure security controls effectively mitigate the risk... of exploits. Provide a comprehensive network design, setup and support of all server/client systems and applications for a Windows...

Posted Date: 28 Jan 2026

Sr. Systems Administrator

Overview: BigBear.ai is seeking a Senior Systems Administrator to join a mission-focused engineering team supporting... and sustain Linux-based operating environments supporting critical applications and services Apply senior-level systems...

Company: BigBear.ai
Location: Washington DC
Posted Date: 22 Feb 2026

Sr. Systems Administrator

Job Description: Overview BigBear.ai is seeking a Senior Systems Administrator to join a mission-focused... in a systems administration-related field OR a Bachelor’s degree in a related field plus 2 additional years of senior experience...

Company: BigBear.ai
Location: Washington DC
Posted Date: 22 Feb 2026