54 linux system administrator jobs at 29 companies in Limerick, PA
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Senior Linux Systems Administrator
Princeton, New Jersey, United States
OnsiteFull Time
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
0+ YOEBS/MS/PhD in CS or related with corresponding years of experience; proficiency in Linux administration, scripting (shell, bash, tcsh, Perl, Python, Ruby), backup systems, configuration management (Ansible/Chef/Puppet/SaltStack), VPN/SSH, database clusters, smart-card auth, and U.S. Citizenship for Public Trust.
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
5+ YOEBS in CS/IT or related with 5+ yrs (MS+3 yrs, PhD+0 yrs); strong Linux administration (RHEL/derivatives), scripting (shell, bash, tcsh, perl, python, ruby), backup systems, config management (Ansible/Chef/Puppet/SaltStack), VPN/SSH, MySQL/Percona, smart-card auth; U.S. citizenship for Public Trust.
Noblis: Provides science and technology solutions for government missions.
6+ YOEBachelor's in IT/CS or related field or 6+ years of relevant experience; US Citizenship with active DoD Secret clearance or ability to obtain one; strong cybersecurity emphasis and system hardening; Windows and Linux administration; security technologies; VMware/Hyper-V; AD/LDAP knowledge; certifications such as Security+ or CISSP.
Windows Server, Linux, VMware vSphere, Microsoft Hyper-V, Firewalls, IDS/IPS, Endpoint Protection, Active Directory, LDAP, Group Policy
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
Bachelor’s degree in IT/CS or related field or 6+ years experience; US Citizenship with DoD Secret clearance or ability to obtain; strong cybersecurity focus; Windows/Linux admin; security tech; certifications (Security+, CISSP); virtualization; AD/LDAP; networking.
VMware, Microsoft Hyper-V, Active Directory, LDAP, Group Policy, LAN/WAN networking, VLANs, IP subnetting, 802.1Q trunking, firewalls, IDS/IPS, endpoint protection, Windows, Linux
Innovative Defense Technologies: A defense-focused technology delivering automated software, data analysis, and cybersecurity solutions for mission-critical systems.
3+ YOEActive Secret clearance, 3+ years systems administration, Windows/Linux/VMware expertise, Security+ CE (or equivalent IAT/IAM), Bachelor’s or equivalent, scripting and STIG/SCAP/ACAS/Nessus experience.
Windows 11, Server 2022, Server 2025, ESXi, VMware vSphere, vCenter Server, Red Hat, PowerShell, Bash, Python, PowerCLI, Ansible Playbook, PDQ Deploy, ACAS, Nessus, STIG, SCAP
EHS Technologies: Provides engineering, IT, and environmental services to defense agencies.
3+ YOE3+ years systems administration experience managing Linux and Windows environments; current Secret clearance; IAT-1 or IAT-2 (e.g., CompTIA Sec+, CySA+, CCNA); experience with on-premises and cloud infrastructure, scripting, troubleshooting, and documentation.
PEAC Solutions: Provides equipment financing and capital solutions for businesses.
3+ YOE3+ years systems or network administration experience; hands-on with Windows Server, Linux, Active Directory, Microsoft 365, networking (TCP/IP, DNS, DHCP, VPN), virtualization; Azure/AWS knowledge and vendor certifications preferred.
Windows Server, Linux, Active Directory, Microsoft 365, Azure, AWS, TCP/IP, DNS, DHCP, VPN
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
4+ YOETop-secret-capable systems administrator with 5+ years experience managing Windows/Linux servers, system hardening to RMF/CMMC/NIST, Active Directory, virtualization, and scripting in PowerShell/Bash/Python.
Red Hat Enterprise Linux (RHEL9), Red Hat Enterprise Linux (RHEL8), Red Hat Enterprise Linux (RHEL7), Active Directory, virtualization, Ansible, Ansible Automation Platform, AWX, Puppet, Chef, PowerShell, Bash, Python
Affiliated Distributors: Buying and marketing group for independent wholesale distributors.
3+ YOE3+ years Oracle experience, Bachelor's in CS/Information Systems or equivalent, 3+ years with data platforms, strong SQL, Snowflake and AWS (S3, Lambda, Glue, Redshift) experience, Drupal familiarity, Windows/Linux experience.
Lawson, Oracle, Snowflake, AWS, S3, Lambda, Glue, Redshift, Drupal (Acquia), SQL, Microsoft SQL Server, MySQL, Qlik, Microsoft Power BI, Tableau, Windows, Linux
Institute for Defense Analyses: Operates federally funded research centers for national security analysis.
3+ YOEBachelor's in CS or equivalent; 3+ years IT (2+ systems admin); advanced Linux/Windows skills; experience with HPC, Lustre, Slurm, HTCondor, MPI, CUDA, InfiniBand/GigE; ability to obtain Top Secret/SCI and DOD 8570 IAT II.
1+ YOEAssociate's degree or 1 year admin experience, 1+ year system engineering/IT support, hands-on Atlassian suite experience, Jira administration, JQL/REST/Groovy, SDLC/agile knowledge, troubleshooting and security awareness.
Jira, Confluence, JQL, REST, Groovy, Oracle, Linux
6+ YOEProvide administration for Informatica IDMC and on-prem MDM, Azure and Linux support, IaC (Terraform/Ansible), Git, 6 years combined education/work experience in systems design or architecture; bachelor's preferred.
Pencor Services: Provides broadband, cable television, and telecommunications services in Pennsylvania.
Associates in networking/telecommunications, PA residency and valid PA driver\u0002s license, UC/VoIP certifications (Avaya, MS, or Cisco), Linux and Cisco experience, DHCP/DNS/QOS knowledge, ability to travel and work onsite as requested.
Susquehanna International Group: Global quantitative trading firm providing proprietary financial market liquidity.
Experience in application support/operations/DevOps or systems administration; scripting (Bash, Python); Unix/Linux command line; troubleshooting during outages; ability to integrate AI tools; BS in a technical discipline preferred.
IT Systems & Endpoint Administrator (NJ, Princeton)
Princeton, New Jersey, United States
OnsiteFull Time
NEC Laboratories America: Conducts advanced research in AI, data science, and networking.
Hands-on experience deploying and managing Windows, macOS, and Linux endpoints; Microsoft 365 administration (Active Directory/Entra ID, Intune, Teams, Defender); user support, onboarding/offboarding, and scripting with PowerShell/Python/Bash.
Windows, macOS, Linux, Microsoft 365, Microsoft Active Directory, Microsoft Entra ID, Microsoft Intune, Microsoft Teams, Microsoft Defender, Microsoft PowerShell, Python, Bash
Systems Engineer - Linux TS/ SCI (TS/SCI Required)
King of Prussia, Pennsylvania, United States
$77k-$135k/yrOnsiteFull Time
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEActive TS/SCI clearance, US citizenship, Bachelor’s degree (or equivalent) with 1+ years experience (or Master’s with no experience). Experience with Linux administration, systems integration, configuration management, and scripting (Ansible, Bash).
Linux RedHat, Red Hat OpenShift, Ansible, Bash, Ansible Tower, AWX
University of Pennsylvania: Research university offering higher education and healthcare services.
3+ YOEBachelor of Science and 3+ years experience; expert Linux and HPC skills, BASH/Python scripting, SLURM, Infiniband/TCP networking, storage and backup management, Salt/Ansible/MAAS, git, and experience with CPU/GPU nodes.
Thomas Edison State University: Public university providing flexible online education for adult learners.
3+ YOEHelpdesk support for ~100 users; manage AD and M365; install/configure hardware and software; maintain inventory; respond to alerts; document activities.
Chicago or Baltimore or Oakbrook Terrace or Philadelphia or Washington
$86k-$119k/yrHybridFull Time
ExelonNASDAQ: EXC: Electric utility holding delivering energy to customers.
4+ YOEBachelor's in CS or related plus several years in IT infrastructure/application/cloud support; expert with Oracle platforms, OCI, Linux, CI/CD, SOX environments; strong troubleshooting, project and stakeholder skills.