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Linux System Administrator

Jobs via Dice
Lexington, MA Full Time
POSTED ON 4/10/2026
AVAILABLE BEFORE 5/9/2026
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Job Title:

Systems Administrator-

Duration:

3 years

Experience

Mid Senior

Location:

Lexington, MA

Description:

Maintains operation of multi-user computer systems, including coordination of infrastructure and cloud responsibilities. Develops and designs core operating system builds. Responsible for coding, virtualization, and automation of systems. Sets up administrator and service accounts, maintains an active directory of users and system documentation, tunes system performance, installs system-wide software, and allocates mass storage space. Assesses and resolves user access problems related to security controls to minimize business impact and risk exposure. Identifies and evaluates vendor products and establishes vendor monitoring and tracking processes. Performs capacity planning and monitors/tunes systems. Recommends appropriate platforms for purchase, coordinates installation, and provides backup recovery. Serves as a point of escalation for major incidents that are unresolved at the helpdesk level. Develops and monitors policies and standards for allocation related to the use of computing resources. May draft general IT communications to end-users including notifications of outages/downtimes. May serve as the primary liaison for mergers, acquisitions, and divesture activities as it relates to user access, network, security, and support.

Background/Need

The Division is in need of 2 Linux System Administrators to support the development of new technologies that enable worldwide networked operations for the military and other government agencies. The division addresses the needs of next-generation satellite, airborne, and terrestrial networks using its core expertise in radio frequency (RF), fiber and free-space optics, cyber security, network protocols and services, information operations, communications processing, and speech and language technologies. The division is extensively involved in field experimentation and measurement campaigns to verify algorithms and architectural concepts in operational environments.

Other information relevant to the job requirement?

Linux systems administrator with some Solaris experience.

Domains: IT Infrastructure, Networking, system architecture design, system configuration management, system troubleshooting

Responsible for management, administration, and support of all IT systems infrastructure in Group.

Responsible for configuring and maintaining (physical and virtual) servers and researcher workstations in a secure RMF compliant and documented manor.

Support additional technologies as they are adopted by the Lab.

Responsible for vulnerability remediation on secure and unclassified systems. Addressing Cat 1, 2, 3 issues in a timely manner

Recognizing and troubleshooting issues with developer s machines as they occur across a variety of Operating Systems. Windows, Linux, etc.

Perform all related duties as assigned.

Required Technical Skills:

Operating Systems: Red hat Enterprise Linux, Ubuntu and VMware

Hardware: Dell, TrueNas, NetApp, Palo Alto

Software/applications: RedHat Satellite, Redhat Automation Platform, VMware vCenter/ESXI/vSAN, Github/Gitlab, NessACAS

Networking applications and protocols: TCP/IP, DNS/DHCP, NTP, SSH, PXE, SNMP

Programming Languages: Ansible, Shell Scripting, PowerShell.

Skilled at centralized authentication ( Kerberos, SSSD, IDM, LDAP, Active Directory)

Preferred Technical Skills:

Windows and macOS support

Juniper and/or Cisco experience is a plus

Docker and/or Podman is a plus

STIG experience is a plus

Non-Technical Skills:

Candidates must be, team oriented, enthusiastic, innovative and motivated self-starters able to work independently, or with a group, to achieve program requirements.

Candidates must possess strong oral and written communications skills and must be able to present findings/results to internal and external organizations.

Adhere to Laboratory policies and procedures

Ability to work with researchers to troubleshoot diverse and custom written applications in a secure environment.

Applicable Education and Professional Accreditation:

Degree in one of the following disciplines: Science, Technology, Engineering, Math, or a related technical discipline

Certification(s) in one or more of the following disciplines: Red Hat, VMWare, Certified Information Systems Security Professional (CISSP); CompTIA Security ; Linux Professional Institute Certification

Any prior military experience is a plus. They will modify the years of experience or the required bachelor s degree if someone has the majority of the technical skills and a military background.

Others:

  • Clearance:- Candidates MUST HAVE an active secret clearance to be submitted to this position. STRONG preference for candidates who have a top active secret clearance. One of the two openings will require clearing to a TS / SCI level. Please ensure your candidate is aware of this requirement.
  • Work:- This role is 100% onsite and will be working in closed spaces.
  • Interview:- Candidates will have an initial zoom screening and then candidates will do a second-round interview with a wider audience. An IN-PERSON interview for the second round is STRONGLY preferred but they will do Zoom if necessary. Our strong preference is for a local candidate.

Salary.com Estimation for Linux System Administrator in Lexington, MA
$98,527 to $139,570
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