Senior Level System Administrator Jobs

Senior level system administrator jobs put experienced professionals in charge of infrastructure strategy, system reliability, and the engineering teams or cross-functional projects that keep enterprise environments running. Openings are concentrated across on-site, remote, and hybrid settings in Technology & Software, Consulting & Professional Services, and Aerospace & Defense, with employers like Columbia Technology Partners, All Points Logistics, and JT4 hiring at this level now.

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Overview

Open roles71
Top stateMaryland
Top employerColumbia Technology Partners
Top cityAnnapolis Junction, MD
Work type88% On-site
Top industryTechnology

Showing 5 of 71+ Senior Level System Administrator jobs

USDM Life Sciences
Application System Administrator
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USDM Life Sciences
New 1m ago
Application System Administrator
USDM Life Sciences
Lexington, Massachusetts
Business Strategy
Consulting & Professional Services
Strategy & Corporate Development
$65 - $80/hr
Master's degree
201-500

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General Dynamics Information Technology
Senior System Administrator (MSO)
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General Dynamics Information Technology
New 1m ago
Senior System Administrator (MSO)
General Dynamics Information Technology
Livermore, California
Cloud & DevOps
IT Support
Systems Administration
$111k - $150k/yr
On-Site
10,000+

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P3S Corporation
Sr. System Administrator
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P3S Corporation
New 1m ago
Sr. System Administrator
P3S Corporation
Dayton, Ohio
IT Support
Network Engineering
Systems Administration
Bachelor's degree in information technology
11-50

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Tyto Athene
Sr Windows System Administrator
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Tyto Athene
New 1m ago
Sr Windows System Administrator
Tyto Athene
Chantilly, Virginia
Cloud Architecture
Network Engineering
Solutions Architecture
$180k - $190k/yr
1,001-5,000

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Akima
Tier 2 IT System Administrator (Active Top-Secret Clearance)
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Akima
New 1m ago
Tier 2 IT System Administrator (Active Top-Secret Clearance)
Akima
Portsmouth, Virginia
Engineering (Non-Software)
Manufacturing Engineering
Mechanical Engineering
$100k - $120k/yr
On-Site
10,000+

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Senior Level System Administrator Job Market

Who's Hiring

  • Columbia Technology Partners
    Columbia Technology Partners5
  • All Points Logistics
    All Points Logistics4
  • JT4
    JT43
  • Maximus
    Maximus3
  • E
    Everforth ECS3

Top Industries Hiring

  • Technology & Software11
  • Consulting & Professional Services9
  • Aerospace & Defense4
  • Electronics & Hardware4
  • Transportation & Logistics4

Senior Level System Administrator Jobs: Frequently Asked Questions

How do I get a senior level system administrator job?

Focus on demonstrating ownership rather than task execution. Employers at this level want candidates who have architected solutions, led migrations or upgrades end to end, and mentored junior staff. Highlight cross-team projects where your decisions shaped outcomes, certifications like RHCE, MCSE, or AWS SysOps, and experience with large-scale or highly available environments. A portfolio of infrastructure improvements you initiated carries significant weight.

Which companies hire senior level system administrators?

Companies hiring senior level system administrators right now include Columbia Technology Partners, All Points Logistics, and JT4, based on current listings on Migrate Mate as of July 2026. Hiring at this level tends to come from large enterprises, government contractors, healthcare systems, and technology firms that rely on complex, always-on infrastructure and need experienced professionals to own it.

Are there remote senior level system administrator jobs?

Yes, though availability varies by employer and infrastructure requirements. About 13% of senior level system administrator openings are remote or hybrid as of July 2026, reflecting demand from organizations comfortable with distributed IT leadership. Roles tied to on-premises hardware or regulated environments often require at least partial on-site presence, while cloud-heavy environments offer more flexibility.

What makes a system administrator role senior level?

Senior level system administrator roles are defined by scope, accountability, and leadership. These positions own infrastructure decisions rather than implementing someone else's plan, drive architecture improvements, set standards across teams, and are responsible for uptime and security at an organizational level. Mentoring junior and mid-level administrators and collaborating directly with engineering and security leadership are also core expectations at this stage.

Which industries hire the most senior level system administrators?

Senior Level system administrator roles concentrate in Technology & Software, Consulting & Professional Services, and Aerospace & Defense, based on current listings on Migrate Mate as of July 2026. These sectors tend to operate large, regulated, or mission-critical environments where experienced system ownership, compliance requirements, and infrastructure scale demand professionals who can lead rather than just maintain.