Sr. Principal System Administrator - (ONSITE)

Sr. Principal Systems Administrator Lead

Sr. Principal System Administrator Lead, in infrastructure Workplace Services, will collaborate with their team to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems.

What You Will Do:

• Manage and optimize a heterogeneous Microsoft Windows and Red Hat Enterprise Linux server infrastructure, ensuring reliable and secure IT operations.
• Mentor and guide junior administrators across a broad range of responsibilities, including corrective and preventive maintenance, routine operational tasks, account management, and system performance tuning.
• Lead a team of system administrators to maintain confidentiality, integrity, and availability of assigned IT systems and applications.
• Oversee and advise on tasks such as configuring administrator and service accounts, maintaining system documentation, tuning system performance, installing enterprise software, and managing computing and storage resources.
• Partner with Cybersecurity teams to maintain compliance with security requirements and provide documentation, training, and guidance on advanced IT processes and procedures.
• Participate in Change Request reviews and serve on Change Management Boards at various program levels.
• Coordinate technical and process document reviews while troubleshooting and resolving system administration, engineering, and integration issues.
• Lead and contribute to technical meetings with internal teams and program stakeholders, representing the organization on functional matters.
• Systems are operational 24x7 and occasionally require work effort beyond standard work hours.
• Travel to other US Domestic locations may be required as business needs dictate. Up to 10% per year.
• Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent) within a reasonable amount of time.

Qualifications You Must Have:

• Typically requires a university degree or equivalent experience and a minimum of 8 years of prior relevant experience or an advanced degree in a related field and a minimum of 5 years of relevant experience.
• Active and transferable U.S. government issued security clearance is required on day 1. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Must have working experience with the following technologies: Active Directory Domain Services, VMware vCenter or vSphere, Red Hat Enterprise Linux, Windows Client and Server, TCP/IP, DNS.
• Must have experience in leading and mentoring both individuals and teams.

Qualifications We Prefer:

• Organizational skills to include attention to detail, time management and ability to multitask.
• Experience working with NISPOM, JAFAN, JSIG, and/or DoD/RMF guidelines.
• Experience with Storage Area Network (SAN) and Network Attached Storage (NAS) systems.
• Experience with configuration and maintenance of networking switch and firewall devices.
• Experience with legacy system i.e. Solaris 8/9/10, Microsoft Server 2008/2012/2016. Windows NT/XP/7, Red Hat Enterprise Linux 4/5/6.

What We Offer:

• Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.
• Relocation assistance available, provided final candidate meets eligibility requirements