151 systems administrator jobs at 90 companies in Dover, NH

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Systems Administrator
Portsmouth, New Hampshire, United States
$51k-$82k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
2+ YOERequires systems administration experience in Windows enterprise environments, Active Directory, IT infrastructure, hardware and peripherals, service management systems, U.S. citizenship, and an active Secret clearance.
SCCM, Active Directory, vSphere, SQL, Microsoft Defender, ServiceNow, Remedy, NTFS, DHCP, Exchange, Microsoft Office 365, Cisco, IBML Scanner Appliances, Intermec PM43 Label Printers, CompTIA A+, CompTIA Network+, CompTIA Security+
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Systems Administrator
Portsmouth, New Hampshire, United States
$51k-$82k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
2+ YOEWindows systems administration experience, Active Directory, enterprise hardware, IT infrastructure, and ServiceNow or Remedy experience. Requires education/experience combination, U.S. citizenship, and active Secret clearance.
Microsoft Windows, Active Directory, ServiceNow, Remedy, NTFS, DHCP, Exchange, Microsoft 365, Cisco, SCCM, vSphere, SQL, Microsoft Defender, Intermec PM43 Label Printers, IBML Scanner Appliances
4w
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Systems Administrator I
Pembroke, New Hampshire, United States
OnsiteFull Time
Associated Grocers of New England
Associated Grocers of New England: Retailer-owned cooperative providing wholesale food distribution and retail support.
3+ YOE3+ years systems administration experience supporting Windows Server, Active Directory, VMware, Microsoft 365/Azure, patching, monitoring, backups, and troubleshooting.
Windows Server, Active Directory, Group Policy, VMware, Microsoft 365, Azure, PowerShell
2w
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IT Systems Administrator
Rochester, New Hampshire, United States
OnsiteFull Time
Bradford White
Bradford White: Manufactures residential and commercial water and space heating systems.
3+ YOE3+ years IT systems administration experience with SCCM and Azure, strong Windows Server, Active Directory, Group Policy, troubleshooting, and communication skills; preferred Microsoft admin certifications.
SCCM, Azure, Windows Server, Active Directory, Group Policy, Azure Active Directory
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IT Systems Administrator
Rochester, New Hampshire, United States
OnsiteFull Time
Laars Heating Systems
Laars Heating Systems: Designs and manufactures residential and commercial boilers and water heaters.
3+ YOE3+ years IT systems administration with strong SCCM and Azure experience, Windows Server, Active Directory/Group Policy knowledge, troubleshooting and collaboration skills; Microsoft admin certifications preferred.
SCCM, Azure, Windows Server, Active Directory, Group Policy
1mo
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Principal Systems Administrator
Hudson, New Hampshire, United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
7+ YOE7+ years system administration experience; Windows/Linux server and workstation administration; VM (ESXi, vCenter, vSphere), NetApp, PXE/WDS, WSUS, RHEL/CentOS, Unix shell scripting, Subversion/ClearCase; Security+ and active Secret clearance; must be able to obtain Top Secret.
Windows, Linux, vCenter Server Appliance (VCSA), VMware ESXi, VMware vSphere, ESXi Direct Console User Interface (DCUI), NetApp, Exchange, WSUS, Red Hat Enterprise Linux, CentOS, Subversion, ClearCase, PXE, WDS
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Sr Systems Administrator
Wilmington, Massachusetts, United States
$116k-$176k/yr OnsiteFull Time
Textron
TextronNYSE: TXT: Manufactures aircraft, defense systems, and industrial specialized vehicles.
4+ YOEActive secret clearance, 4+ years systems/network administration, Windows/Linux experience, DoDD 8140/8570 certification within 6 months, experience with patching, vulnerability management, and security automation.
Windows Server, Windows 11, RedHat, Nessus, Microsoft Group Policy
2w
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IT Systems Administrator
Rochester, New Hampshire, United States
OnsiteFull Time
Laars Heating Systems
Laars Heating Systems: Manufacturer of high-efficiency boilers, water heaters, and pool heaters.
3+ YOE3+ years IT systems administration with SCCM and Azure, Windows Server, Active Directory, Group Policy, strong troubleshooting and communication skills; Microsoft admin certifications preferred.
SCCM, Azure, Windows Server, Active Directory, Group Policy
5d
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IT Systems Administrator II
Merrimack, New Hampshire, United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Provides advanced defense, aerospace, and security technology solutions.
3+ YOEU.S. citizenship, active Top Secret clearance, Security+ or equivalent DoD IAT Level II certification, and 3–6 years of systems administration experience; requires Active Directory, Windows, virtualization, patching, and security compliance expertise.
Active Directory, VMware, Hyper-V, DNS, DHCP, SCCM, WSUS, PowerShell, Python, Bash, RMF, NIST 800-53, JSIG, NISPOM, STIGs, ICD 503
2mo
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IT Systems Administrator II
Merrimack, New Hampshire, United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
2+ YOEU.S. citizen able to obtain TS/SCI; active Secret clearance and CompTIA Security+ (DoD 8570 IAT II) required; 2+ years systems administration experience (3–6 preferred); proficiency with Active Directory, virtualization, patching, and STIG/RMF compliance.
Active Directory, VMware, Hyper-V, SCCM, WSUS, PowerShell, Python, Bash, STIGs, RMF, NIST 800-53, JSIG, DNS, DHCP
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Principal Systems Administrator - Hybrid
San Diego or Manchester or Hudson or Merrimack
$118k-$201k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
7+ YOEMust obtain US Secret clearance; CompTIA Security+ or DoD 8570 IAT Level II within 6 months; 7+ years system administration experience; Windows Server, Active Directory, VMware/Horizon; scripting with PowerShell/Bash/Python.
VMware vSphere, Horizon, PowerShell, Bash, Python, Active Directory, Group Policy, DNS, DHCP
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Associate Systems & Cybersecurity Administrator
Nashua, New Hampshire, United States
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Manufactures electronic and fiber optic connectors and interconnect systems.
1+ YOEPreferred 1–3 years in cybersecurity, security operations, help desk, or systems administration; familiarity with enterprise security, Windows infrastructure, virtualization, backups, networking, and monitoring; associate or bachelor's degree preferred.
Microsoft 365 Security, Microsoft Defender, Microsoft Sentinel, Microsoft Entra ID, Microsoft Intune, Active Directory, Windows Server, DNS, DHCP, Group Policy, PowerShell, SIEM, EDR, VMware vSphere, Microsoft Hyper-V, SAN, NAS, Veeam, Azure Backup, SolarWinds, ManageEngine, TCP/IP, VLANs, VPNs, Linux
1mo
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Engineering Systems Administrator
Bedford, New Hampshire, United States
OnsiteFull Time
PCI Pharma Services
PCI Pharma Services: Integrated pharmaceutical development, manufacturing, and global packaging services.
2+ YOE2-3 years GxP experience, HS diploma (BS preferred), SQL and Active Directory proficiency, familiarity with OT systems (HMIs, PLCs), documentation and validation experience.
SQL, Active Directory, SCADA, MES, LIMS, historians, HMIs, PLCs, QMS
1mo
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Security and Systems Administrator
Reading, Massachusetts, United States
OnsiteFull Time
Reading Cooperative Bank
Reading Cooperative Bank: Community-owned bank providing personal and business financial services.
2+ YOEWindows Server/Active Directory administration, vulnerability management, security monitoring (Rapid7), incident response, system hardening, 2+ years Windows Server experience, Bachelor’s in IT or equivalent; PowerShell a plus.
Windows Server, Active Directory, Group Policy, Rapid7, SentinelOne, PhishER, Microsoft 365, InsightVM, Nessus, Qualys, PowerShell, MDR, SIEM, TCP/IP, firewalls, VPNs
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Associate Systems & Cybersecurity Administrator
Nashua, New Hampshire, United States
OnsiteFull Time
Amphenol
AmphenolNYSE: APH: Designs and manufactures electrical connectors and interconnect systems.
1+ YOEPreferred 1–3 years in cybersecurity, security operations, help desk, or systems administration; familiarity with Windows infrastructure, security tools, virtualization, backups, networking, and disaster recovery.
Microsoft 365 Security, Microsoft Defender, Microsoft Sentinel, Microsoft Entra ID, Microsoft Intune, Active Directory, Windows Server, DNS, DHCP, Group Policy, PowerShell, SIEM, EDR, TCP/IP, VLANs, VMware vSphere, Microsoft Hyper-V, SAN, NAS, RAID, Veeam, Azure Backup, SolarWinds, ManageEngine
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Sr. Systems Administrator, Linux - Tewksbury, MA
Tewksbury, Massachusetts, United States
$69k-$131k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
2+ YOEUniversity degree and 2+ years of relevant experience, Red Hat Enterprise Linux administration, technical troubleshooting documentation, U.S. citizenship, and ability to obtain an interim Secret clearance.
Microsoft Windows, Red Hat Enterprise Linux, VMware vCenter, VMware vSphere, ESX, bash, Perl, Microsoft PowerShell, Python, Ansible, NAS, SAN
3w
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Systems Administrator- Enterprise Applications & Endpoint Management
Danvers, Massachusetts, United States
$78k-$90k/yr OnsiteFull Time
St. John's Preparatory School
St. John's Preparatory School: Operates a private Catholic college preparatory school.
3+ YOE3+ years administering enterprise applications and endpoint management (Blackbaud, Canvas, Jamf Pro); experience with Google Workspace, AD/Azure AD, SSO, integrations, and scripting; Jamf certification preferred.
Blackbaud, Canvas, Jamf Pro, Jamf Safe Connect, Jamf Safe Internet, Apple School Manager, Google Workspace, Zoom, Active Directory, Azure AD, PowerShell, Bash, Python, API
4d
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Regional Float System Administrator
Portsmouth, New Hampshire, United States
FieldFull Time
Empower AI
Empower AI: Providing AI-enabled technology solutions for federal government agencies.
5+ YOERequires 5+ years of experience, a bachelor's degree in IT or a related field, Secret clearance, and proficiency in systems administration. CompTIA Security+ and ITIL 4 Foundation are preferred.
Active Directory (AD), System Center Configuration Manager, Post Administration Tool, Travel Document Issuance System, Passport Records Imaging System Management, Automated Cash Register System, vSphere Installation Bundles (VIBs), Oracle, SQL, ServiceNow
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Database and Systems Administrator
Lowell, Massachusetts, United States
$95k-$105k/yr OnsiteFull Time
Lowell Public Schools
Lowell Public Schools: Providing public K-12 education for the City of Lowell.
3+ YOERequires 3–5 years of relevant experience, DESE reporting experience, analytical and interpersonal skills, staff development experience, and working knowledge of Aspen, Microsoft Office, Google Suite, XML, HTML, Java, and SQL.
Aspen, Microsoft Office, Google Suite, Connect Ed, Nutri-kids, Virtual Gateway, Versa Trans, TeachPoint, XML, HTML, Java, SQL
1mo
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Senior Systems Adminstrator
Portsmouth, New Hampshire, United States
$100k-$115k/yr OnsiteFull Time
WIN Waste Innovations
WIN Waste Innovations: Provides sustainable waste collection and waste-to-energy recycling services.
4+ YOEExperienced systems administrator with 4+ years supporting Windows and Linux, on‑prem and cloud infrastructure (Azure/AWS), Active Directory, GPO, backups/DR, scripting (PowerShell/VBScript), IaC (Terraform/GitOps), networking and security.
Microsoft Azure, Amazon Web Services (AWS), PowerShell, VBScript, BAT, Terraform, Azure DevOps (ADO), GitOps, Azure Active Directory, Active Directory, Group Policy, Windows, Linux, DHCP, DNS, SFTP, VPN