System Administrator
Company: Leidos
Location: Arlington
Posted on: April 1, 2026
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Job Description:
Leidos is seeking an experienced System Administrator to support
autonomous maritime projects’ hardware stacks by managing and
maintaining Linux-based systems in an on-premises system
integration lab (SIL) in Arlington, VA. The System Administrator
will be joining an existing team which has already successfully
delivered for our customers and plan to continue their reputation
of excellence. The System Administrator will focus on system
configuration, monitoring, troubleshooting, and ensuring the
security and integrity of Linux servers and workstations with
little supervision. The team’s focus is on software and supporting
hardware, including integration with hardware and sensors on
multiple vessels. The system administrator will work closely with
cross-functional teams to support system deployments, software
updates, and operational readiness, ensuring that all systems meet
security, performance, and availability requirements. This position
is on-site in support of the system integration lab (SIL) in
Arlington, VA. After hours support may be required to keep the lab
functioning (if needed). Primary Responsibilities Ensure the
reliability, security, and efficiency of our servers, networks, and
system integration laboratories. Perform system monitoring,
performance tuning, and troubleshooting to ensure high availability
and reliability. Manage system patches, upgrades, and security
hardening in compliance with DoD policies. Provide support for
system backups, disaster recovery, and data integrity. Configure
and maintain network services including routing, firewalls, DNS,
and VLANS. Assist in managing system access, user accounts, and
security configurations. Collaborate with teams to support software
deployments and integration. Create and maintain documentation
pertaining to system operating procedures. Participate in incident
response and resolve issues related to system performance,
security, and availability. Basic Qualifications US Citizen with an
active SECRET clearance. 4 years of prior relevant experience or
Masters with 2 – 6 years of prior relevant experience in being a
System Administrator (or experience in a similar field) Bachelor’s
degree in fields like Computer Science, Information Technology,
Network Engineering, etc. Experience with system security, patch
management, and performance tuning. Proficiency in scripting
languages (e.g., Bash, Python). Experience with configuration
management tools (e.g., Ansible). Familiarity with virtualization
technologies (e.g., Docker, Kubernetes, VMware, KVM). Ability to
set up new servers as needed and support hardware upgrades. Ability
to apply user requirements to the analysis, planning, and design of
technology systems. Ability to communicate problems and solutions
both verbally and in writing. Ability to work independently and
troubleshoot problems with speed and efficiency. Ability to work
closely with others in a team environment. Strong analytical and
problem-solving skills. Preferred Qualifications Familiarity with
one or more disciplines: Linux certifications (e.g., RHCSA, RHCE,
CompTIA Linux). Experience with monitoring tools (e.g., Nagios,
Zabbix, Prometheus). Experience with RHEL 8/9/10. Knowledge of Dell
Servers If you're looking for comfort, keep scrolling. At Leidos,
we outthink, outbuild, and outpace the status quo — because the
mission demands it. We're not hiring followers. We're recruiting
the ones who disrupt, provoke, and refuse to fail. Step 10 is
ancient history. We're already at step 30 — and moving faster than
anyone else dares. Original Posting: February 2, 2026 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 $73,450.00 - $132,775.00 The Leidos pay range for
this job level is a general guideline only and 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.
Keywords: Leidos, Richmond , System Administrator, IT / Software / Systems , Arlington, Virginia
