Sr Systems Administrator

Sierra Nevada Corporation • Plano, TX

1d • Hybrid

About The Position

The Senior Systems Administrator provides strategic oversight and leadership in managing the organization’s systems infrastructure in a fast-paced Aerospace and Defense environment. The role ensures system integrity, security, and efficiency while leading complex projects, guiding implementation of advanced solutions, and mentoring junior administrators. The position is part of SNC’s corporate team, which provides strategic direction and business support to the company and its business areas.

The administrator plans, designs, and implements system configurations; monitors and optimizes system performance; leads security measures; troubleshoots critical issues; maintains documentation; and coordinates upgrades, enhancements, and testing. The role also manages user permissions and platform requests, supports cross-tool integrations, and works with vendors and enterprise-level projects. The position requires the ability to obtain and maintain a Secret U.S. Security Clearance and U.S. citizenship. Work may be in an office or hybrid environment, with occasional travel.

Requirements

• Bachelor’s degree in an information technology-related field; relevant experience may substitute for the required education.
• At least 8 years of experience in a related field. Without a degree, at least 12 years of related experience is required; a higher-level relevant degree may substitute for experience.
• Mastery of operating systems such as Windows and Linux.
• Advanced knowledge of network and system security protocols.
• Prior administration experience with Systems Engineering Requirements Management tools, including Jama Connect and Jama Connect Interchange.
• Experience with SQL.
• Familiarity with the systems engineering lifecycle, including requirements management, digital thread, and model-based systems engineering.
• Prior systems administration experience in Windows or Linux environments.
• Excellent interpersonal and communication skills.
• Customer-care philosophy supporting a high level of customer satisfaction.
• Organizational skills and attention to detail.
• Ability to obtain and maintain a Secret U.S. Security Clearance; U.S. citizenship is required.

Nice To Haves

• CISSP or equivalent certification.
• Extensive experience with virtualization technologies such as VMware or Hyper-V.
• Advanced scripting skills such as PowerShell or Python.
• Experience with cloud services such as AWS or Azure.
• Systems administration experience with Dassault Systèmes tools, specifically Teamwork Cloud, Cameo, and 3DX trigrams (TRM and TRY).
• Familiarity with GitHub and ServiceNow.
• Experience with BIRT and Velocity template scripting.
• Experience with software and hardware defect tracking processes.
• At least 5 years implementing and supporting AWS and Azure Cloud Operations.
• At least 5 years implementing and supporting VMware, including VRealize, VRealize Operations, and VRealize Automation.
• At least 5 years with IT Operations Monitoring Tools such as PRTG, VROperations, and Solarwinds.
• Ability to troubleshoot network connectivity between server infrastructure.
• AWS Cloud Foundations certification.
• Azure Fundamentals certification.

Responsibilities

• Strategically plan, design, and implement advanced system configurations.
• Oversee system performance monitoring and optimization.
• Lead implementation of advanced security measures.
• Provide leadership and expert-level troubleshooting for critical system issues.
• Develop and maintain comprehensive system documentation.
• Manage and coordinate system upgrades and enhancements.
• Conduct system testing to ensure reliability and compliance.
• Mentor junior systems administrators and provide technical guidance.
• Manage user access permissions, customizations, and other platform requests.
• Explore new and maintain existing cross-tool integration capabilities.
• Lead enterprise-level projects and work with vendors.

Benefits

• Annual incentive pay based on performance and commensurate with position level.
• Medical, dental, and vision plans.
• 401(k) with 150% match up to 6%.
• Life insurance.
• Three weeks of paid time off.
• Tuition reimbursement.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior