Mid-Level System Administrator, Aviation Engineering & Integration

Sigma Defense Systems is a leading technology company serving the Department of Defense (DoD), providing tactical communications systems and services for digital modernization since 2006. Through our acquisitions of SOLUTE in January 2022 and Sub U Systems in May 2022, we have expanded our software and communications hardware solutions to better support JADC2, C5ISR, SATCOM, and DEVSECOPS for customers in the Army, Navy, Air Force, Marine Corps, and Space Force. Through a combination of hardware, software, and industry expertise, we provide a complete portfolio of solutions and services that accelerates information collection and sharing for faster decision making and better mission outcomes. We have positions immediately available for a motivated individual to provide Computer Systems Administration support to one of our Navy customers.

We are a company of innovative professionals thriving in a highly motivating work environment that fosters creativity and independent thinking. If you are a motivated individual with a desire to support our service men and women, now is a great time to join Sigma Defense!

Why would you work for us? Quite simply, the work we do is meaningful and stimulating. We promote initiative and independent thought; we encourage direct client engagement to ensure we are delivering what the customer wants; and our engineers and scientists are working on cutting-edge projects that move the state-of-the-art closer to the people who need them. If you're looking for technical challenges and an opportunity to take a leadership role in an environment that encourages you to excel, then WE are your destination.

Want to know what it's like to work at Sigma? Find out what our employees are saying.

Discover Your Next Mission with Sigma Defense - Find and follow us at Sigma Defense Systems LLC: Overview | LinkedIn and visit Sigma Defense | A Leading Technology Company for more information.

Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems 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, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements

Experience:

• 2-3 years with a degree from a university or accredited college, or 5 years of experience with no degree or advanced certifications.

Personnel Clearance Level:

• Candidate must possess an active, DoD issued Secret security clearance.

Certifications:

1. Security+ (or equivalent DoDM 8140 certification)
2. RHCSA Red Hat Certified System Administrator (highly desired)

Important Characteristics to be Successful:

• 3 -5 years of experience as a system administrator in Linux.
• Strong organizational and time management skills.
• Solid communications and customer service skills.
• Experience building virtualized environments.
• Strict attention to detail.
• Ability to multi-task effectively, prioritize, and execute against multiple priorities.

Essential Job Responsibilities (not all-inclusive)

• Provide a wide range of systems administration and operational network set-up to include, but are not limited to:
• Provide system administration of Network, Web, and communication systems, including Local Area Network (LAN) and Wide Area Network (WAN) systems. This includes administration of user accounts, passwords, email, chat and FTP.
• Configuring servers, create monitoring reports and logs, and ensure functionality of network links.
• Troubleshooting commercial-off-the-shelf (COTS) automated data processing (ADP) equipment to the lowest sub-assembly /module level identified in the original equipment manufacturer (OEM) manual, and provide a repair action report with recommendation to appropriate authority regarding the repair or replacement with the next higher level assembly/module.
• Supporting assessment and authorization efforts in accordance with existing Security Directives.
• Monitor website for acceptable performance and user accessibility.
• Consult with and advise users on computer operating system related issues.
• Configure and optimize network servers and associated encryption technologies.
• Being responsible for system config