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System Administrator; Mid-Level

Job in O'Fallon, St. Clair County, Illinois, 62269, USA
Listing for: UNCOMN
Full Time position
Listed on 2026-07-25
Job specializations:
  • IT/Tech
    IT Support, Systems Administrator, Cybersecurity
Salary/Wage Range or Industry Benchmark: 80000 - 110000 USD Yearly USD 80000.00 110000.00 YEAR
Job Description & How to Apply Below
Position: System Administrator (Mid-Level)

At UNCOMN
, we don’t just fix issues; we deliver secure solutions that power essential operations in both the public and private sectors. Our team tackles tough challenges—whether it’s improving organizational systems, streamlining logistics, or making sense of complex data—all with one goal: helping our clients succeed so they can continue serving others.

We’ve built a culture rooted in our Core Values
, where innovation thrives, work-life balance is respected, and career growth is always encouraged. We’re also proud to be recognized as a ‘
Top Workplace
’, and that’s not just us talking; it’s our employees.

Now, we’re looking for another Uncommon Genius to join our dynamic team. If you love solving puzzles, building new things, fixing what’s broken, or pushing the boundaries of creativity, we encourage you to explore the details of this position below!

System Administrator (Mid-Level) Responsibilities
  • Design, engineer, and evaluate IT software/hardware or network architectures and networking technologies.
  • Train and support clients and their systems.
  • Administer, develop, run tests on, implement, and maintain operating system and related software.
  • Establish and implement standards for computer operations for compatibility between hardware and software, according to specifications and parameters.
  • Troubleshoot and resolve software, operating system, and networking problems.
  • Schedule, perform, and monitor system backups and, when necessary, perform data recoveries.
  • Configure hardware, such as workstations, printers, servers, and tape devices.
  • Provide technical support for system users.
  • Epitomize UNCOMN Core Values.
Requirements
  • 5+ years of related experience in a professional environment with exposure to AWS.
  • Must be eligible to obtain a Secret clearance, granted by the US Government as needed, which requires US citizenship.
  • Must hold an active IAT Level II certification (CCNA‑Security, CySA+, GICSP, GSEC, Security+ CE, CND, SSCP).
  • Must hold a Computing Environment (CE) certification or certificate related to one of the following areas:
    • Cloud or virtualization (Azure, AWS, Oracle, IBM, etc.)
    • Software development (Java, .NET, C++, Python, Visual Basic, etc.)
    • Network support/defense (Splunk, Cisco, McAfee, etc.)
    • Operating System (Microsoft, Linux, Solaris, etc.)
    • Application (database, backup, automation, web server, network, proxy, firewall, etc.)
Preferred
  • Active Secret clearance, granted by the US Government.
  • Bachelor’s Degree (or higher) from an accredited college or university.
  • Jenkins and/or Oracle exposure.
Why UNCOMN?
  • Instant Flexible PTO:
    Enjoy flexible paid time off starting your very first day with us.
  • Generous Holidays:
    Benefit from 7 paid holidays and up to 3 floating holidays annually.
  • Immediate Health Coverage:
    Get access to comprehensive health benefits from day one.
  • 401K Safe Harbor Match:
    Secure your future with our top‑tier 401K matching program.
  • Growth Opportunities:
    Advance your career with our training and education assistance programs.
  • Free Employee Assistance Program (EAP):
    Access complimentary support services for you and your family.

Note:

Benefits apply to full‑time employees only.

Don’t meet every single requirement? We’re dedicated to building an uncommon, inclusive, and authentic workplace, so if you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or national origin.

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