Principal System Administrator (Linux) (Onsite)

Position Principal Systems Administrator / Analyst – Onsite – Marlborough, MA – Relocation assistance available. What you will do Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment, supporting Windows Server internals and Linux fundamentals (DNS, DHCP, AD, server replication). Use troubleshooting techniques to resolve moderate to high scope technical problems, including hardware and operating system integration. Configure and manage RAID, backup, and disaster recovery technologies. Install and configure software applications. Work with cybersecurity professionals to maintain security requirements and provide documentation and training on advanced IT processes and procedures. Qualifications Minimum 5 years of direct hands‑on Linux administration experience; 3 additional years for those with an advanced degree. Experience with Active Directory, WSUS, VMware, Veeam, MySQL, Remote Desktop Gateway, Splunk, Windows and Linux administration. Experience in backup, recovery, and disaster‑recovery environments. Must be able to obtain a Department of Defense (DoD) Secret security clearance and maintain it after day one. Must obtain DoD Directive 8140 / 8570 certification (CompTIA Security+ CE or equivalent) within 6 months of start date. Preferred: DoD TS/SCI with Polygraph, experience with NISPOM, JAFAN, JSIG, DFARS, and/or DoD/RMF. Experience with Windows Server, NAS/SAN storage solutions, VMware vCenter/vSphere, and/or other virtualization. Understanding of HPC environments and scripting. Benefits Medical, dental, and vision insurance. Three weeks of vacation for newly hired employees. Generous 401(k) plan with employer matching. Tuition reimbursement program. Student loan repayment program. Life insurance and disability coverage. Optional coverages, including pet, home, auto, additional life, accident and critical illness insurance. Birth, adoption, parental leave benefits. Employee assistance plan with counseling sessions. Health and wellness incentives. Additional Information Position may require infrequent domestic travel. Salary range: $86,800–$165,200 USD. Equal Opportunity Employer RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. #J-18808-Ljbffr Prattwhitney