Top 3 Senior systems administrator Jobs in Plymouth Ma

Senior Systems Administrator
Thayer Academy —Braintree, MA
- $113,022 - $116,978 a year
- School experience
- Google Workspace
- Senior level
- Opportunities for advancement
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- 7 years
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Senior Systems Administrator

Thayer Academy -
Braintree, MA

Quick Apply

Job Details

$113,022 - $116,978 a year

Benefits

Opportunities for advancement

Qualifications

SSO
Cloud identity and access management (IAM)
IT user and group management
Linux support
macOS support
Server backup and recovery
Azure AD
Server virtualization
macOS administration
Data backup
Windows support
Identity & access management

Full Job Description

Role Summary

The Senior Systems Administrator owns the reliability, security, and lifecycle of on-premises and cloud systems that support academic and administrative operations. This role focuses on identity, servers, endpoints, backups, security controls, and SaaS integrations. Network architecture and infrastructure responsibilities are handled by external specialists.

Reporting & Operating Model

Reports to the Director of IT
Works daily with external network and security consultants
Primary point of contact for MSP and systems vendors
Expected to perform maintenance and upgrades outside business hours when required

Primary Responsibilities

Identity & Access

Administer Microsoft Entra ID (Azure AD), hybrid identity, and Conditional Access
Manage SSO integrations (SAML / OIDC)
Support MFA platforms (e.g., Duo)
Maintain RBAC, group strategy, and lifecycle automation

Server & Platform Administration

Administer Windows Server and Linux systems (on-prem and cloud)
Manage virtualization platforms (VMware or equivalent)
Maintain directory, DNS, and DHCP services
Perform patching, upgrades, and lifecycle planning

Endpoint & Device Management

Support Jamf and Intune device platforms
Integrate device identity with authentication systems

Backup, DR, and Reliability

Administer backup platforms (Veeam, Druva, or equivalent)
Test restores and document recovery procedures
Maintain disaster recovery runbooks and system dependencies

Security Operations (Non-Network)

Apply OS-level hardening and patching
Respond to endpoint and server security incidents
Support audits, logging, and compliance controls
Coordinate with security vendors and consultants

SaaS & Application Support

Own backend administration for Google Workspace, Microsoft 365, Blackbaud, and core platforms
Maintain service integrations and provisioning flows
Troubleshoot authentication, sync, and access issues

Documentation & Process

Maintain system documentation and diagrams
Create operational runbooks and escalation procedures
Support change management and configuration tracking

Required Qualifications

5+ years as a Systems Administrator in mixed Windows/macOS environments
Strong Windows Server and identity experience
Hands-on Entra ID / Azure AD experience
Virtualization and backup platform experience
Proven ability to own systems end-to-end

Strongly Preferred

Experience in K-12 or higher education
Intune administration
Hybrid identity migrations
SaaS-heavy environments with limited on-prem footprint
Ability to work independently without a large internal IT team
Familiarity with advanced networking concepts for coordination and troubleshooting

Compensation

$113,022 - $116,978

Application Information

Please click here to complete an application and upload your resume, cover letter, and the names and contact information for three to five references, including two present or past supervisors.
Equal Opportunity Act: Thayer Academy is an equal opportunity employer. The Academy complies with and adheres to all state and federal anti-discrimination laws with respect to its employment practices. Thayer Academy does not discriminate against any employee or applicant for employment on the basis of race, color, religion, gender, sexual orientation, gender identity and expression, national origin or ancestry, age, or disability, or any other category protected under state or federal law. This policy extends to recruiting, hiring, compensation, benefits, assignment, working conditions, promotions, transfers, termination, re-employment, education, tuition assistance, employee treatment, and all other terms, conditions, and privileges of employment. All employment-related decisions are made on a nondiscriminatory basis so as to further the principle of equal employment opportunity.
Americans with Disabilities Act: Thayer Academy complies with all aspects of the Americans with Disabilities Act (ADA) and state disability laws. This means that we will not discriminate against qualified individuals with a disability in any phase of the employment relationship including application for employment, hiring, promotions and/or advancement opportunities, termination, compensation, training, and any other conditions or privileges of employment.

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