14 linux system administrator jobs at 12 companies in Killingly Center, CT

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Principal System Administrator (Linux) (Onsite)
Marlborough, Massachusetts, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEU.S. citizen with ability to obtain/maintain DoD clearance; 5+ years Linux administration; experience with AD, VMware, backup/recovery, Veeam, Splunk; CompTIA Security+ (or equivalent) within 6 months; university degree typically required.
Red Hat Enterprise Linux, Active Directory, Microsoft WSUS, VMware, Veeam, MySQL, Remote Desktop Gateway, Splunk, Windows Server, vCenter, vSphere, ESX, Microsoft SCCM, Microsoft Exchange, NAS, SAN
2d
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Linux Architecture - System Administrator II - Req# 608
Southington or Rocky Hill or Avon
$73k-$109k/yr HybridFull Time
COCC
COCC: Provider of financial technology and core banking solutions.
1+ YOERequires a computer science degree or equivalent experience, 1–3 years of infrastructure support, Windows or Linux administration, virtualization, cloud, storage, Kubernetes, scripting, documentation, and communication skills.
ServiceNow, Microsoft, Linux, VMware, AWS, Microsoft Azure, Kubernetes, PowerShell, Bash, Python, Terraform, Ansible
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Sr. System Administrator
Marlborough, Massachusetts, United States
$69k-$131k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
2+ YOERequires active transferable U.S. Secret security clearance and U.S. citizenship, typically a university degree or equivalent, 2+ years relevant experience, Windows and Red Hat Linux administration, scripting, helpdesk/ticketing, system hardening, and ability to obtain DoDD 8140/8570 (CompTIA Security+ CE) certification.
Microsoft Windows, Redhat Enterprise Linux, Windows Server, ESXi, vCenter, VMware, ACAS, SCAP, Splunk, STIG Viewer, MECM, SCCM, PXE, Active Directory, Group Policy
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Linux Systems Support
Norwich or United States
RemoteFull Time
Unisys
UnisysNYSE: UIS: Provides enterprise-scale IT services and digital transformation solutions.
2+ YOEBA/BS or equivalent with 2+ years relevant experience, expertise in Linux systems administration, strong troubleshooting and root-cause analysis, and U.S. citizenship and residency required.
Linux
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Systems Administrator (Lexington, MA, US)
Lexington, Massachusetts, United States
$96k-$127k/yr OnsiteFull Time
MIT Lincoln Laboratory
MIT Lincoln Laboratory: Building advanced technology prototypes for national security.
4+ YOELinux/Windows systems administration; security/compliance; on-site work; DoD clearance eligibility; Ansible; 80% on-site.
Linux, Windows, Active Directory, LDAP, Ansible, Backup and Recovery, Data Storage, Network Monitoring
1w
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IT Systems Administrator
Needham, Massachusetts, United States
$75k-$145k/yr OnsiteFull Time
HPR
HPR: Provides high-performance technology infrastructure for electronic trading markets.
3+ YOE3+ years systems administration experience; strong Linux and Windows Server skills; SIEM and vulnerability management; endpoint management; scripting with Bash, Python or Ansible; virtualization (VMware, KVM); Azure or AWS; Palo Alto firewalls; Active Directory and Microsoft 365; server hardware and data center experience; able to lift 50 lbs.
SIEM, Linux, Windows Server, Bash, Python, Ansible, VMware, KVM, Azure, AWS, Palo Alto, Active Directory, Microsoft 365, PowerShell
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Systems Administrator
Marlborough, Massachusetts, United States
OnsiteFull Time
IPG Photonics
IPG PhotonicsNASDAQ: IPGP: Develops and manufactures high-performance fiber lasers and systems.
3+ YOE3+ years infrastructure support with Azure, Active Directory/Entra ID, Windows/Linux, VMware, Nutanix, Veeam, Exchange/Office 365 migration, PowerShell, networking, SSL/CA, ITIL and ITSM experience; strong troubleshooting and communication.
Microsoft Active Directory, Entra ID, Azure, Citrix, Microsoft 365, Nutanix, VMware, Veeam Backup, Microsoft Intune, MFA, AWS, Microsoft Exchange, Office 365, PowerShell, DNS, DHCP, LDAP, Group Policies
2w
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Systems Administrator- Middletown, Rhode Island
Middletown or Newport or Rhode Island
$68k-$113k/yr OnsiteFull Time
Serco
SercoLondon Stock Exchange: SRP: Provides professional outsourcing services to governments worldwide.
2+ YOEActive DoD Secret (or Interim Secret) clearance, IAT Level II (Security+, CompTIA A+, or Network+), bachelor's +2 years (or HS+4), AD/Group Policy, VMware ESXi, Microsoft SQL, Windows and Linux experience.
VMware ESXi, Microsoft SQL, Windows Server 2008, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Cisco IOS, HBSS, eMASS, ACAS, SCAP, VRAM, DIACAP/RMF, STIG
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Information Assurance/Security Engineer - Linux Systems Specialist
Middletown, Rhode Island, United States
$85k-$120k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
2+ YOE2+ years related experience, bachelor\u0002s degree and Linux administration, strong networking, shell scripting or Python, Red Hat/Linux certifications desired, ability to work in secure environments (Secret clearance).
shell scripting, Python, TCP/IP, DNS, DHCP, VLAN, VPN, firewalls
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Senior Windows Systems Administrator
Chestnut Hill, Massachusetts, United States
$110k-$138k/yr OnsiteFull Time
Boston College
Boston College: Private research university providing undergraduate and graduate academic programs.
5+ YOEBachelor's degree; strong VMware and Microsoft Windows Server expertise; experience with automation (Ansible, Python), PowerShell/PowerCLI, containers, cloud platforms, identity management, monitoring tools, scripting, patching, DR, and compliance (ITIL/HIPAA/PCI).
Microsoft Active Directory, Microsoft Windows Server 2019, Microsoft Windows Server 2022, Microsoft Windows Server 2025, Red Hat Linux, VMware, Ansible, Python, PowerShell, PowerCLI, Podman, Kubernetes, Azure, AWS, Google Cloud, Splunk, Zabbix, Packer, Jenkins, GitHub, CI/CD, Group Policy Object (GPO), Microsoft SQL, SAML, ADFS, OAUTH, ITIL, SAS115, HIPAA, PCI, SSL
2mo
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Power BI Systems Administrator
Norwich or United States
RemoteFull Time
Unisys
UnisysNYSE: UIS: Provides enterprise-scale IT services and digital transformation solutions.
2+ YOEBA/BS degree and 2-4 years’ relevant experience or equivalent combination; experience administering servers, monitoring networks, and deploying software.
Power BI, Windows Server, Linux, Network Monitoring, Server Management
2d
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Staff Engineer, DevOps
Waltham, Massachusetts, United States
$122k-$205k/yr RemoteFull Time
Fresenius Medical Care
Fresenius Medical CareNew York Stock Exchange: FMS: Provides dialysis services and manufactures renal care medical devices
8+ YOEBachelor’s degree in computer science, information technology, or related field; 8+ years related experience, including 4+ years in system and network administration; Windows/Linux, networking, virtualization, and cloud infrastructure expertise.
Terraform, Windows, Linux, VMware, Hyper-V, routers, switches, firewalls, Microsoft Certified: Windows Server, CompTIA Network+, CompTIA Security+, Cisco CCNA
3d
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Engineer IV - AWS Cloud Engineer
Webster, Massachusetts, United States
$145k-$185k/yr OnsiteFull Time
MAPFRE
MAPFREBolsa de Madrid: MAP: Provides global insurance, reinsurance, and financial protection services.
7+ YOERequires 7+ years of infrastructure, systems, or cloud engineering experience, including 5+ years designing and operating AWS environments, plus cloud automation, networking, security, and server administration expertise.
Amazon Web Services (AWS), Terraform, CloudFormation, AWS CDK, Amazon EC2, Amazon VPC, Amazon S3, Amazon RDS, Amazon ECS, Amazon EKS, AWS Lambda, Amazon Route 53, Amazon CloudWatch, AWS IAM, AWS Systems Manager, Linux, Windows, Kubernetes, CI/CD
6d
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Sr. Systems Engineer, SAP Basis
Norwood or Cambridge or United States
$131k-$209k/yr HybridFull Time
Moderna
ModernaNasdaq: MRNA: Develops and manufactures messenger RNA medicines and vaccines.
10+ YOE10+ years SAP Basis experience with SAP S/4HANA and RISE, bachelor's degree in IT or related field, cloud and SAP HANA administration, scripting/automation, security and compliance experience.
SAP S/4HANA, SAP HANA, SAP NetWeaver, SAP Fiori, SAP Solution Manager, Cloud ALM, SAP Cloud Connector, SAP Business Technology Platform (BTP), AWS, Microsoft Azure, Google Cloud Platform, PowerShell, Bash, Python, Ansible, Terraform, Linux