IT System Engineer

2 days ago

Fort Worth, TX, United States Apex Systems Full time

Apex Systems is hiring for a RHEL Systems Engineer for one of our defense clients in the Fort Worth, TX area.

PLEASE NOTE: Candidates must be able to obtain and/or maintain a DoD SECRET security clearance as a condition and continuation of employment*

Position Summary

The Systems Engineer - IT will support a mixed-environment enterprise consisting of RHEL, Solaris, and Windows systems within a highly controlled, security-focused environment. This role involves systems administration, automation, virtualization, and troubleshooting across multiple platforms. The engineer will collaborate with internal teams to maintain system reliability, implement modernization efforts, and support mission-critical operations

Key Responsibilities

  • Administer and support RHEL 7/8/9 systems, including patching, troubleshooting, and performance optimization
  • Manage Windows 10/11 and Windows Server environments, including Active Directory and core services
  • Develop and maintain automation workflows using Ansible/YAML
  • Support virtualization infrastructure using VMware vCenter 8 and VMware Workstation
  • Assist with configuration management, system hardening, and compliance standards
  • Troubleshoot system, network, and application issues across Linux, Windows, and virtualization layers
  • Collaborate with engineering teams on deployments, upgrades, testing, and documentation
  • Maintain system reliability in an operational, security-sensitive environment
  • Support legacy systems as required (Solaris 10, older VMware versions, etc.)


Required Qualifications
  • Active DoD Secret Clearance
  • Active CompTIA Security+ Certification (mandatory)
  • Linux Administration: RHEL 7+ (RHEL 8-9 strongly preferred)
  • Windows Administration: Windows 10/11 and Windows Server (Active Directory, DNS, DHCP)
  • Automation & IaC: Hands-on experience with Ansible, YAML, and related tooling
  • Virtualization: VMware vCenter 8 and VMware Workstation experience
Preferred Qualifications
  • Solaris 10 Administration (OJT acceptable due to legacy nature)
  • Containerization: Docker and/or Podman
  • Database Experience: Oracle SQL and/or PostgreSQL
  • Red Hat Satellite Server (content management, patching, lifecycle management)


Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click here for more details.

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.

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