System Administrator (TS-SCI w/Poly)
Confirmed on the employer's own hiring board on Oct 28, 2026. First seen by Alion on Jan 15, 2026. Parsons scores B on the Alion truth index.
Job Description:
Parsons is seeking a versatile System Administrator to tackle new challenges across the full stack as we continue to push security forward. Parsons’ extensive experience in the cleared space, combined with your technical knowledge, will propel your career forward with opportunity for advancement with top performance.
In this role you will maintain operating systems, security tools, applications, servers, desktops, software, and hardware. Optimize networks for mission/project requirements. Implement faster and smarter processes for meaningful insights and solutions. Ensure reliable operations and maintenance of network infrastructure. Partner with internal stakeholders to communicate project status, activities, and achievements.
Essential Duties & Responsibilities:
Assess system architecture and current hardware limitations.
Participate in gathering business and product functional and performance requirements
Responsible for the administration of Linux systems, and Windows servers inclusive of applications, processes the system supports
Define and design system specifications, input/output processes, and working parameters for hardware/software compatibility on both Windows and Linux platforms
Designing, planning, and implementing both new and legacy technology that directly supports the goals of the mission
Analyze system logs and identify potential issues
Manage the operational day to day of the network
Install government provided software patches and updates
Install, and configure new systems and platforms
Perform security management and application performance optimization functions
Perform regular hardware maintenance of administered systems
Provide analyses of alternatives for identified system issues or future plans
Install, and configure new systems and platforms
Required Qualifications:
Bachelor’s degree in an IT related field preferred (in lieu of degree, 4 additional years of relevant work experience may be substituted) or a Master's and typically 3+ years of experience
5+ years of experience as a System Administrator
Experience with administration of VMware, Linux systems, and Windows servers inclusive of applications, processes the system supports.
Active TS/SCI with poly clearance
Desired Qualifications:
DoD 8570 IAT II compliant (Security+ certified preferred, etc.)
Security Clearance Requirement:
An active Top Secret SCI w/Polygraph security clearance is required for this position.This position is part of our Corporate team.For over 80 years, Parsons Corporation, has shaped the future of the defense, intelligence, and critical infrastructure markets. Our employees work in a close-knit team environment to find new, innovative ways to deliver smart solutions that are used and valued by customers around the world. By combining unique technologies with deep domain expertise across cybersecurity, missile defense, space, connected infrastructure, transportation, smart cities, and more, we're providing tomorrow's solutions today.Salary Range: $48.51 - $84.90We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee’s wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest-APPLY TODAY!Parsons is aware of fraudulent recruitment practices. To learn more about recruitment fraud and how to report it, please refer to https://www.parsons.com/fraudulent-recruitment/.