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System Administrator - Journeyman

Job in O'Fallon, St. Clair County, Illinois, 62269, USA
Listing for: G2IT
Full Time position
Listed on 2026-11-01
Job specializations:
  • IT/Tech
    Systems Administrator, Systems Engineer, Unix/Linux, Windows Server
Salary/Wage Range or Industry Benchmark: 65000 - 75000 USD Yearly USD 65000.00 75000.00 YEAR
Job Description & How to Apply Below

G2IT is seeking a skilled and motivated Systems Engineer to support the U.S. Transportation Command (USTRANSCOM) at Scott Air Force Base in Illinois.

This position supports the USTRANSCOM Managed Information Technology Services (MITS) contract, providing critical technical and operational support to the Command, Control, Communications & Cyber Systems Directorate (TCJ6).

As a Systems Engineer, you will play an important role in maintaining, configuring, troubleshooting, and optimizing essential IT infrastructure. You will work with network servers, virtualization systems, laptops, desktops, virtual desktop infrastructure (VDI), and supporting hardware and software to ensure reliable system performance and availability.

This is an opportunity to apply your technical expertise while supporting the operations and modernization of USTRANSCOM's IT environment.

Key Responsibilities

Manage, monitor, and maintain enterprise systems and IT infrastructure to ensure reliable performance and availability.

Install, configure, test, and maintain operating systems, application software, and system management tools.

Support network servers, server virtualization systems, laptops, desktops, and VDI environments.

Identify and troubleshoot system performance issues, working with developers to implement effective solutions.

Maintain system security, backup, and redundancy strategies.

Perform system vulnerability remediation, reporting, configuration, and compliance activities.

Provide Tier 2 and Tier 3 technical support, troubleshooting complex system issues.

Participate in the design and implementation of information and operational support systems.

Install, configure, and troubleshoot UNIX/Linux/Red Hat environments.

Collaborate with vendors and other IT personnel to resolve technical challenges.

Support planned and emergency events outside normal business hours, including weekends, when required.

Required Qualifications

Education & Experience

Bachelor's degree (BA/BS) and at least four (4) years of relevant experience.

Experience supporting production IT environments.

Strong troubleshooting skills with demonstrated end-to-end problem management and ownership.

Security Clearance & Certifications

One of the following IAT Level II certifications:

CompTIA Security+ CE

CompTIA CySA+

GICSP

GSEC

CND

SSCP

A Computing Environment (CE) certification or certificate relevant to the technical area of responsibility, such as:

Technical Experience

Experience installing, configuring, and supporting Microsoft Windows Server 2012/2016 environments.

Hands-on experience with Linux and UNIX/Red Hat systems.

Experience with Azure or AWS cloud environments.

Working knowledge of authentication technologies, including LDAP, Kerberos, and Active Directory.

Conceptual understanding of storage systems, including SAN and NAS.

Ability to troubleshoot and resolve complex infrastructure and system issues.

Availability to participate in recurring on-call support.

Annual Salary $65k-$75k, depending on experience

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey. Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiring process or thereafter. Any information that you do provide will be recorded and maintained in a confidential file.

As set forth in G2IT's Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection. As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this…

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