379 senior it systems administrator jobs at 295 companies in United States

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Senior IT Systems Administrator
Santa Clara or North America or Europe
$135k-$148k/yr OnsiteFull Time
HackerRank
HackerRank: Private technology hiring platform that helps companies assess, hire, and upskill software developers.
5+ YOEFive or more years in corporate IT support, systems administration, or IT operations; hands-on macOS and Jamf experience; Okta, SaaS administration, ITSM, asset lifecycle, troubleshooting, and communication skills.
Jamf, Okta, VPN, DLP, Google Workspace, Microsoft 365, Notion, Linear, Slack, Zoom, Adobe, macOS, MDM, SOC 2, ISO 27001, APIs, ITIL, CompTIA
1mo
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Senior IT Systems Administrator
Reston, Virginia, United States
$120k-$200k/yr HybridFull Time
Scout Space
Scout Space: Private U.S. aerospace providing orbital sensors, autonomy software, and data platforms to commercial and national-security customers.
5+ YOE5+ years IT/systems administration experience, bachelor’s in IT/CS or equivalent, experience with MSPs, CMMC/NIST compliance, Windows/Linux administration, AWS and Azure, strong troubleshooting and communication skills.
AWS, Microsoft Azure/GCC High, Windows, Linux, CMMC, NIST 800-171, ISO27001
6d
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Senior IT Systems Administrator
Saint Paul, Minnesota, United States
$106k-$160k/yr OnsiteFull Time
NextEra Energy
NextEra EnergyNYSE: NEE: Largest electric utility holding and renewable energy generator.
5+ YOERequires 5+ years in systems administration, cloud operations, infrastructure, endpoint management, or related roles; bachelor's degree or equivalent experience; cloud, enterprise systems, troubleshooting, automation, and security expertise.
AWS, Microsoft Azure, Google Cloud Platform, Terraform, PowerShell, Python, Bash
1w
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Senior IT Systems Administrator
Denver or Austria or Hong Kong or China or Korea or Japan
$95k-$112k/yr HybridFull Time
BOA Technology
BOA Technology: Private American fit-system manufacturer supplying patented micro-adjustable closures to footwear, headwear, workwear, and medical-bracing brands.
5+ YOERequires 5+ years in systems administration or infrastructure engineering, enterprise networking, Microsoft 365, Entra ID, Azure or AWS, cybersecurity, multi-OS environments, and advanced troubleshooting. Bachelor's degree preferred.
Microsoft 365, Microsoft Entra ID, Active Directory, Azure, AWS, Windows Hyper-V, Proxmox, Fortinet, FortiClient VPN, NIST Cybersecurity Framework (CSF), Microsoft Intune, Iru, Microsoft Defender for Endpoint, Veeam, RTO/RPO, SOX, IT Service Desk, Microsoft, Cisco CCNA, CompTIA Security+, AWS Certified Solutions Architect
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Senior IT Systems Administrator
San Diego, California, United States
$115k-$155k/yr OnsiteFull Time
Seasats
Seasats: Ocean Autonomy That Works
6+ YOE6+ years IT systems administration experience; Google Workspace or Microsoft 365 admin; MDM for Windows and macOS; Linux knowledge; strong networking (DNS, DHCP, VLANs, VPNs, Wi‑Fi), identity/SSO/MFA, endpoint security, and support/process experience.
Google Workspace, Microsoft 365, Windows, macOS, Linux, MDM, Okta, JumpCloud, Kandji, Jamf, Microsoft Intune, Python, PowerShell, Bash, DNS, DHCP, VLANs, VPNs, Wi‑Fi, firewalls, SSO, MFA
2mo
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IT Systems Administrator
Ethridge, Tennessee, United States
OnsiteFull Time
Cosma International
Cosma International: Private automotive body, chassis and engineering supplier serving global automakers.
Experience in automotive manufacturing, MES and ERP administration, network and device monitoring, firewalls and cyber security systems, and Microsoft Active Directory, Cisco, and VMware administration; 5 years recent experience preferred.
MES, ERP, Microsoft Active Directory, Cisco, VMware
6d
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IT Systems Administrator
United States
RemoteFull Time
Agital
Agital: Private marketing-services platform supporting three specialized agencies with shared infrastructure, technology, and operational resources.
5+ YOEBS/BA in IT, Information Systems, or related field; 5+ years in IT administration or end-user support; extensive Microsoft 365 and Google Workspace administration; PowerShell Modules or GAM experience; cybersecurity and IT service management knowledge.
Microsoft 365, Google Workspace, Adobe, DocuSign, ClickUp, Azure, HubSpot, Salesforce, NetSuite, DNS, Microsoft 365 PowerShell Modules, GAM, Atlassian, Monday.com, Slack, Zoom, Entra ID, SSO, SCIM, Google Identity, ITIL, CompTIA
1mo
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IT Systems Administrator
Charlotte, North Carolina, United States
HybridFull Time
ProMach
ProMach: Provider of integrated packaging and processing machinery solutions.
7+ YOE7+ years systems/network administration experience with Windows Server, virtualization, patch management, networking, endpoint protection, and strong troubleshooting and documentation skills.
Microsoft Windows Server, Active Directory, Group Policy, DNS, DHCP, VMware vSphere, Hyper-V, SonicWall, N-able/N-central, Nable/NCentral, ServiceNow, M365, Microsoft SharePoint, Microsoft Teams, Azure
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Senior IT Systems Administrator
Blacksburg, Virginia, United States
$90k/yr HybridFull Time
Virginia Tech
Virginia Tech: Public land-grant research university serving the commonwealth.
Administer Linux/Windows systems, deploy and maintain physical/virtual servers, use containerization and automation tools, manage AD/DNS, scripting (PowerShell/Bash), and lead small teams; US citizenship required.
Docker, Kubernetes, Ansible, Chef, Puppet, PowerShell, Bash, Microsoft Active Directory, DNS, Python, Conda, VMware, KVM, Hyper-V, Dell PowerEdge
2w
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IT Systems Administrator
Elkhart, Indiana, United States
OnsiteFull Time
R.A.S. Logistics
R.A.S. Logistics: Private U.S. final-mile logistics provider serving brands with warehousing, delivery, installation, and assembly.
5+ YOERequires 5–10 years of systems or network administration experience, Windows Server and Microsoft 365/Azure expertise, networking, security, backup, WMS/ERP, SQL, API integrations, and scripting skills.
Windows Server, Microsoft 365, Microsoft Azure, Microsoft Entra ID, Microsoft Exchange, Microsoft SharePoint, Microsoft Teams, FTP, DNS, DHCP, WMS, ERP, EDR, MDM, SQL, PowerShell, Bash, Python, VoIP, EDI
3mo
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IT Systems Administrator III
Cincinnati, Ohio, United States
OnsiteFull Time
General Electric Credit Union
General Electric Credit Union: Member-owned, not-for-profit credit union providing banking and lending services to members in Greater Cincinnati.
7+ YOESenior-level infrastructure administrator with Linux, Kubernetes, and Azure experience; 7+ years of systems administration; strong scripting and security focus.
Linux, Kubernetes, Azure, PowerShell, Bash, RBAC, Identity and Access Management
1mo
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IT Systems Administrator
Charlotte, North Carolina, United States
$85k-$95k/yr HybridFull Time
Joerns Healthcare
Joerns Healthcare: Private medical-equipment manufacturer and service provider serving long-term and post-acute care providers.
5+ YOE5+ years IT experience with network administration, systems analysis, and end-user support; Bachelor's in CS/IS or equivalent; hands-on Windows Server, Active Directory, VoIP, AWS, Microsoft 365; strong troubleshooting and communication skills.
Windows Server, Active Directory, VoIP, AWS, Microsoft 365, TCP/IP, VLANs, VPNs, VPCs, firewalls, Intune, Jamf, VMware, Hyper-V, Azure, GCP, PowerShell, Bash, Python, Jira Service Management, ServiceNow, Freshservice, Okta, Microsoft Entra ID
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IT Systems Administrator
United States
RemoteFull Time
Epic Kids Inc.
Epic Kids Inc.: Epic is a private digital reading platform for children, serving families, educators, and K–12 students.
5+ YOERequires 5+ years in IT administration or operations, compliance-program experience, identity and access management, Google Workspace administration, troubleshooting, documentation, and a bachelor's degree or equivalent experience.
Google Workspace, macOS, Jamf, Kandji, Intune, Vanta, Drata, SailPoint, Certalign, Lumos, SAML, SCIM, Python, Bash, PowerShell
3mo
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IT Systems Administrator
Glenview, Illinois, United States
$89k-$113k/yr OnsiteFull Time
Illinois Tool Works
Illinois Tool WorksNYSE: ITW: Global diversified industrial manufacturer of value-added consumables and specialty equipment.
7+ YOESenior IT Systems Administrator with 7+ years of experience; strong Windows Server, AD, DNS/DHCP, virtualization, and hybrid cloud skills; able to manage backups, security, and network design.
Windows Server, Active Directory, DNS, DHCP, VMware, VPN, Cloud, Networking, Scripting
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IT Systems Administrator
Queenstown, Maryland, United States
$70k-$85k/yr OnsiteFull Time
Queenstown Bank
Queenstown Bank: Independent Maryland community bank serving consumers and businesses with personal, commercial, mortgage, lending, and deposit services.
6+ YOE6+ years IT experience, associates degree in technology preferred or equivalent experience, knowledge of networking protocols, Windows server administration, scripting (Batch, PowerShell, Python), Microsoft 365 administration, cybersecurity, business continuity, and strong communication and documentation skills.
DHCP, DNS, TCP/IP, VLANs, VPNs, Wi-Fi, Windows, Active Directory, SFTP, Batch, PowerShell, Python, Microsoft Power Automate, Task Scheduler, Azure, Exchange, Intune, OneDrive Purview, SharePoint, Teams, Microsoft Copilot, APIs, Middleware, ODBC
1mo
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IT Senior Systems Administrator
Raleigh or Washington or Greenville or Wilmington or Charlotte or Fort Myers
HybridFull Time
Rise Capital Group
Rise Capital Group: Private Houston investment-management firm offering accredited investors access to oil-and-gas, real-estate, and alternative-asset opportunities.
7+ YOE7+ years IT support/systems administration experience; strong with Windows Active Directory, Microsoft 365 services, Intune/Entra ID, virtualization, networking, cybersecurity, and supporting distributed environments.
Windows Active Directory, Intune, Entra ID, Microsoft 365, SharePoint Online, Defender, Exchange Online, Microsoft Server, Windows 11, Scale Computing, VMware
2w
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IT Systems Administrator II
Bethlehem, Pennsylvania, United States
OnsiteFull Time
Specialty Minerals
Specialty MineralsNYSE: MTX: Innovative Technologies. Essential Solutions.
5+ YOEBachelor's degree in a relevant technology field and 5+ years of systems, database, or network administration experience. Requires Microsoft systems knowledge, virtualization, backup, networking, analytical, and communication skills.
Microsoft Windows, Microsoft Server, Windows Server, Microsoft SharePoint, SQL Server, IIS, DFS, VMware, Veeam, SAN, Oracle RDMS, Linux, Microsoft Office, Microsoft Office 365, Microsoft Azure, Networking, Switches, Firewalls, IP phone systems, Microsoft Windows Server certification, Microsoft Azure certification
1w
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IT Systems Administrator
Phoenix, Arizona, United States
OnsiteFull Time
Shin-Etsu MicroSi, Inc.
Shin-Etsu MicroSi, Inc.: Privately held semiconductor and microelectronics materials manufacturer serving worldwide industrial customers.
Technical expertise in Microsoft Dynamics 365 Business Central, SQL database administration, infrastructure, cybersecurity, user support, automation, and AI-driven workflow improvement.
Microsoft Dynamics 365 Business Central, SQL, JetReports, Microsoft Power BI, Business Central Application Language (AL), Microsoft Power Platform, Microsoft Entra, Active Directory, MFA, VPN, Microsoft SharePoint
3mo
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Principal IT Systems Administrator
Boston, Massachusetts, United States
$113k-$142k/yr HybridFull Time
CarGurus
CarGurusNasdaq Global Select Market: CARG: Public online automotive marketplace helping consumers and dealers buy and sell new and used vehicles.
8+ YOEExtensive IT systems engineering/administration experience (8+ years) in enterprise environments; strong automation, security, and incident-response skills.
Okta, Google Workspace, M365, Jamf, Intune, EDR, SSO, MFA, DLP, Terraform, Python, PowerShell
3w
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Senior Systems Administrator/ IT Engineer
Santa Clara, California, United States
$145k-$200k/yr OnsiteFull Time
Velaura AI
Velaura AI: Private AI compute infrastructure developing ultra-low-power silicon and software for data centers and Physical AI.
10+ YOERequires 10+ years in systems administration, infrastructure engineering, or enterprise IT, with Linux, Windows, macOS, cloud, networking, security, endpoint management, scripting, troubleshooting, and documentation experience.
RHEL, Ubuntu, VMware vCenter, Proxmox, AWS, Google Cloud Platform, Google Workspace, Microsoft 365, Single Sign-On (SSO), Multi-Factor Authentication (MFA), Duo Security, Cisco Meraki, VPN, DNS, DHCP, PAN firewalls, SSL/TLS, NetApp, Rubrik, Bash, Python, Endpoint Detection and Response (EDR), SentinelOne, Windows, macOS, Apple, Dell, Iru MDM, Kandji, Jamf, Microsoft Intune, TCP/IP, VLAN, Wi-Fi, routing, FileVault, BitLocker, Terraform, Ansible, SIEM, CrowdStrike, Microsoft Defender for Endpoint