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Principal Systems Administrator

Job in Olive Branch, DeSoto County, Mississippi, 38654, USA
Listing for: Relha LLC
Full Time position
Listed on 2026-08-30
Job specializations:
  • IT/Tech
    Systems Administrator, Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 78200 - 148600 USD Yearly USD 78200.00 148600.00 YEAR
Job Description & How to Apply Below

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:
DoD Clearance:
Secret Security Clearance Status:
Active and existing security clearance required on day 1

Job Description

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do:

Provide IT systems administration support in a heterogeneous Microsoft Windows environment.

Manage and maintain core services including DNS, DHCP, Active Directory (AD), and server replication.

Troubleshoot and resolve moderate to complex issues involving integration of hardware, operating systems, and software applications.

Implement and manage data RAID, backup, and recovery technologies.

Collaborate with Cybersecurity professionals to maintain compliance with security requirements.

Install, configure, and document software applications requested by end users.

Provide user and system documentation, process training, and ongoing technical support.

Participate in on-call or after-hours system maintenance as required to support 24x7 operations.

Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements within 6 months of start date.

Travel up to 5% domestically based on business needs.

Full time 100% Onsite position Qualifications You Must Have :

Typically requires a University degree or equivalent experience and a minimum of 5 years of prior relevant experience or an Advanced Degree in a related field and minimum 3 years experience.

Active and transferable U.S. government issued Secret security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Experience using Active Directory, VMware vCenter, vSphere, or other virtual computing methods.

Experience with Windows deployment, administration, security hardening, and troubleshooting.

Experience with infrastructure backup, restore, disaster recovery and business continuity products.

Qualifications We Prefer:
An active DoD Secret or Top Secret clearance

Experience with infrastructure backup, restore, disaster recovery and business continuity products

Scripting Experience.

Experience using tools like SCAP and following STIGs.

Experience supporting engineers in software, simulations, and hardware development.

What We Offer:

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:
Trust, Respect, Accountability, Collaboration, and Innovation.

The salary range for this role is 78,200 USD - 148,600 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit…

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