System Administrator-Linux

System Administrator - Linux

Leidos has a new and exciting opportunity for a System Administrator - Linux in our National Security Sectors (NSS) Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering Computer Network Operations (CNO) Mission Software Analytical Methods and Modeling Signals Intelligence (SIGINT) and Cryptographic Key Management. At Leidos we offer competitive benefits including Paid Time Off 11 paid Holidays 401K with a 6% company match and immediate vesting Flexible Schedules Discounted Stock Purchase Plans Technical Upskilling Education and Training Support Parental Paid Leave and much more. Join us and make a difference in National Security!

Primary Responsibilities

The selected individual will be responsible for monitoring infrastructure systems applications and processes and for ensuring that all issues are identified tracked and resolved in a timely manner. She / he will provide support for all infrastructure systems and will respond to hardware and software incidents and work with senior system administrators at times remotely from other locations . Other responsibilities include :

• Quickly responding to IT Help Desk calls and emails in a professional manner; ensuring issues are resolved and / or escalated to the appropriate teams; and following up with teams and users to ensure issues are satisfactorily remediated.
• Identifying troubleshooting and correcting hardware and software issues including network connectivity.
• Utilizing enterprise monitoring solutions to identify alarms that have been triggered against the various environments.
• Proactively contacting customers when infrastructure processes are significantly delayed or may impact their ability to complete a business function on time.
• Executing the process for managing information assurance vulnerability alerts (IAVAs) and system security scanning for equipment suites in accordance with the System Security Plans for these systems to rapidly and accurately identify and remediate IAVAs.
• Initiating IAVA responses and system security scans completing remediation and extending IAVA patches and security updates on various IT and network systems.
• Providing technical assistance to companion work groups in support of overlapping projects such as implementing IT enhancements and optimizing systems.
• Maintaining good inter-departmental relations communicating with users and publishing status of system outages.
• Participating in the creation and ongoing maintenance of documentation to ensure clear concise and accurate information is readily available to assist with incident resolution.

Required Qualifications

Preferred Qualifications

At Leidos the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us helping you grow your career is good business. We look forward to learning more about you apply today.

youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting : November 18 2025

For U.S. Positions : While subject to change based on business needs Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range :

Pay Range $89700.00 - $162150.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.

Required Experience :

Unclear Seniority

Key Skills

Air Freight,Accounting & Finance,Electrical Commissioning,General Services,Civil Engineering,Linux

Employment Type : Full-Time

Experience : years

Vacancy : 1

Monthly Salary Salary : 89700 - 162150