Source Job

$119,000–$178,250/yr
US

  • Lead the migration of key services into M365, keeping tenants aligned with firm security and risk standards, and partner with IT Operations, Security, Risk, and Applications teams.
  • Administer Exchange Online, Entra ID, and mobile devices on Intune, supporting Teams, SharePoint, and OneDrive collaboration.
  • Support Purview and Defender implementations, run root cause analysis on cloud performance issues, and document services managed.

Microsoft 365 Entra ID Exchange Online SharePoint Online

20 jobs similar to Senior Microsoft 365 Administrator

Jobs ranked by similarity.

Global

  • Provide advanced technical support for M365 and Azure environments, managing service requests, alerts, and maintenance tasks according to established processes.
  • Collaborate with senior technical leadership to drive automation, improve service delivery, and ensure secure, reliable IT operations.
  • Communicate clearly with customers and vendors, documenting changes and educating stakeholders on IT best practices.

This company is a professional managed IT services provider that helps businesses maximize technology value through reliable, process-driven IT support. They foster a collaborative culture focused on continuous improvement and customer service, working with a dedicated team in a managed services environment.

US

  • Support security, privacy, and governance activities across the Microsoft 365 cloud suite.
  • Assist with data readiness, Microsoft Purview integration, and management of user permissions and audit logging.
  • Collaborate with technical teams to identify, mitigate, and document risks and security changes.

ARSIEM Corporation provides support to multiple agencies across the United States Government. They have an experienced workforce of qualified professionals committed to providing the best possible support.

United States 4w PTO

  • Lead end-to-end Microsoft 365 consulting engagements including discovery, design, implementation, and migration.
  • Design SharePoint Online intranets, document management systems, and Power Platform solutions to automate business processes.
  • Advise on governance, security, AI readiness, and adoption while mentoring teams and contributing to pre-sales activities.

Jobgether uses AI-powered matching to connect candidates with hiring companies. They process applications and share top-fitting candidates with employers, supporting a remote-first hiring approach.

US

  • Administer and maintain Microsoft Azure and Microsoft 365 cloud environments, including backups, disaster recovery, and cloud migrations.
  • Monitor security alerts, manage endpoint protection, conduct audits, and respond to security incidents.
  • Manage user access, SSO, MFA, Conditional Access, and support server, workstation, and network administration.

Aspire Living & Learning provides support services for individuals with disabilities and their families. They foster a collaborative, dedicated team culture that values belonging, care, diversity, and professional growth.

Asia-Pacific

  • Administer Microsoft 365 including Entra ID, Exchange Online, SharePoint, Teams, and Intune.
  • Resolve escalated technical issues (Level 2/3) for Asia-Pacific colleagues and serve as regional IT contact.
  • Support security and audit-readiness with Conditional Access, Microsoft Defender, and Microsoft Purview.

Milestone One is a Site Enabling Services organization with global headquarters in Zug, Switzerland, supporting clinical study sites worldwide. The company values curiosity, accountability, and continuous learning, fostering a purpose-driven culture.

US Unlimited PTO

  • Plan and execute Exchange Server to Exchange Online migrations.
  • Perform Microsoft 365 tenant-to-tenant migrations for Exchange, SharePoint, OneDrive and Teams.
  • Troubleshoot migration errors, identity conflicts, permissions and endpoint transition issues.

Coretelligent provides managed IT, cybersecurity, cloud, and strategy for growing, regulated organizations. The company fosters a culture of ownership, collaboration, and continuous improvement, delivering secure and dependable IT environments.

Global

  • Serve as the escalation point for complex incidents and requests across the IT support team, troubleshooting issues with Microsoft 365, Windows, macOS, and remote connectivity.
  • Manage the endpoint lifecycle including provisioning, configuring, and maintaining laptops and mobile devices for a distributed workforce.
  • Administer Microsoft 365, Active Directory, and Entra ID, and support Microsoft Intune operations for app deployment and endpoint policies.

Sterlington PLLC is a full-service law firm focusing on complex corporate, litigation, executive compensation, and private wealth matters. The firm emphasizes the economics as well as the legal aspects, serving founders, senior executives, and UHNWIs.

$24,096–$27,711/yr
Global

  • Deliver Microsoft 365, identity, and migration projects hands-on across multiple client tenants.
  • Run mailbox, tenant, file, and domain migrations end to end, including cutover and post-cutover support.
  • Manage Azure infrastructure and client devices through Intune, with a focus on documentation and client communication.

Anovia is a technology outsourcing support provider for the telecommunications industry, specializing in workflow, knowledge, and technical support. With over 200 professionals globally, it serves Fortune 500/1000 clients and values work/life balance, growth, and recognition.

US

  • Own the strategy, roadmap, and day-to-day operation of Microsoft 365, including identity, security, and device management.
  • Oversee Azure cloud and core infrastructure supporting business-critical applications, working with systems and cloud engineers.
  • Lead and develop a geographically distributed IT team, standardizing ways of working and building disaster recovery and business continuity programs.

Magna Legal Services provides comprehensive legal support to law firms, corporations, insurance carriers, and government agencies, including court reporting, record retrieval, jury consulting, investigations, litigation graphics, and language services. The company fosters a culture where talented people can do meaningful work and grow their careers in a distributed business environment.

Global Unlimited PTO

  • Lead IT operations as the in-house Microsoft expert, turning strategy into delivered work across identity, endpoint, and SaaS platforms.
  • Own Entra ID architecture, security posture, and automation, including identity lifecycle, SSO, and compliance controls like CMMC Level 2.
  • Support ~230 team members in a distributed workforce while mentoring the IT Administrator and staying hands-on daily.

Blackpoint Cyber provides world-class cybersecurity threat hunting, detection and remediation technology, founded by former NSA cyber operations experts. The company is in hyper-growth mode with roughly 230 team members, a recent $190M Series C, and a remote, high-ownership culture.

$135,000–$170,000/yr
Global Unlimited PTO 6w maternity 6w paternity

  • Own IT operations, Microsoft 365, endpoint security, and helpdesk support.
  • Manage security compliance, audits, and backup recovery across cloud and AI platforms.
  • Serve as the sole IT owner with direct access to the CEO and cross-functional leadership.

EHS Insight provides cloud-based environmental, health, and safety software. It is a small company with a remote-first culture where employees own their work and report directly to the CEO.

US

  • Own Azure infrastructure, Microsoft 365, and Entra ID as the primary cloud engineer.
  • Manage endpoint/mobile devices, IAM lifecycle, and automate IT processes with PowerShell and Graph.
  • Build cybersecurity operations, support incident response, and serve as final escalation for complex IT support.

WRA is an employee-owned environmental consultancy of planners, engineers, and scientists. With a distributed 100-person workforce, it fosters an ownership mindset and invests in systems and flexible policies to support staff engagement and sustainable work-life balance.

US

  • Own and resolve Tier 3 incidents across hardware, software, identity, and infrastructure.
  • Lead end-to-end delivery of enterprise projects, including migrations, upgrades, and modernization.
  • Design and support Microsoft Azure, AWS, Microsoft 365, and on-premises systems with security and automation.

Re:Build Manufacturing operates an advanced manufacturing platform that partners with industrial companies to bring products from concept to production in aerospace, defense, medical, energy, and robotics. The company emphasizes employee ownership and a culture guided by 'The Re:Build Way,' aiming to create meaningful jobs across America.

$135,000–$170,000/yr
US Unlimited PTO 6w maternity 6w paternity

  • Own IT operations, Microsoft 365 administration, and endpoint management in a fully remote, cloud-first environment.
  • Implement security controls across identity, SaaS, AI platforms, and backup and recovery processes while maintaining audit readiness.
  • Support employees as the primary IT contact, from onboarding and device setup to troubleshooting, security policy, and technology strategy.

A fully remote, cloud-first organization focused on IT operations and information security. It is a lean, hands-on company with a culture of autonomy, ownership, and direct access to leadership.

UK 4w PTO

  • Take senior, hands-on ownership of the cloud services environment, ensuring it is secure, reliable, and continuously improving.
  • Manage and maintain Microsoft Azure, Microsoft 365, and Cisco Meraki, supporting modern ways of working and delivering high-quality internal technology services.
  • Drive incident resolution, root-cause analysis, automation, backup, and disaster recovery readiness while supporting the transition from on-premises infrastructure to full cloud operation.

Babble is a Customer Experience-led growth business and a leading UK cloud solutions provider, specializing in Microsoft Modern Work, cybersecurity, contact centre technology, mobile solutions, and connectivity. With thousands of customers, they operate as a dynamic, home-based team that celebrates annual company events and supports flexible working.

US

  • Administer, monitor, and support customer-facing security platforms and operational technologies.
  • Handle Tier 3 escalations by analyzing logs, configurations, and system behavior to restore service.
  • Collaborate with internal teams and vendors to plan upgrades, onboard clients, and improve reliability.

Tusker provides managed security services, building and supporting the security platforms that protect its clients. The company fosters a security-first culture, emphasizing hands-on engineering, continuous learning, and collaboration.

$6,024–$10,843/yr
India Philippines

  • Monitor, triage, and resolve security alerts in Microsoft Defender XDR and Sentinel.
  • Lead incident response end-to-end and maintain ISO 27001 documentation and audits.
  • Administer IAM, PAM, and patch management to enforce least privilege and compliance.

Appen is a leader in AI training data, specializing in human-generated data to train, fine-tune, and evaluate models across generative AI, LLMs, computer vision, and speech. With over 1 million contributors in more than 200 countries, the company fosters a culture of innovation, collaboration, and humility.

$100,000–$120,000/yr
US

  • Strengthen identity security and manage security tools including Microsoft Entra ID, Defender XDR, and Sentinel.
  • Own vulnerability management, incident response, and third-party vendor security risk programs.
  • Align security program with NIST CSF 2.0, CIS Controls, and SOC 2 Type II audits.

BCC Software develops innovative software and data solutions that power critical customer communications for organizations across North America. With more than 45 years of industry leadership, they combine deep postal expertise with modern technology to help customers streamline operations and improve efficiency.

Sri Lanka

  • Lead, mentor, and support a team of service desk engineers to maintain high performance and service quality.
  • Ensure service requests and incidents are resolved efficiently within SLAs, acting as an escalation point for complex technical issues.
  • Drive continuous improvement in service operations, documentation, and team performance within an MSP environment.

They are an established technology services provider delivering managed IT services and technical support to clients. They value reliable service delivery, strong technical capabilities, and continuous improvement, with a culture that supports distributed teams and professional development.

US Unlimited PTO

  • Handle escalations from Tier 1, lead incident response, and resolve issues within SLAs.
  • Administer Microsoft Entra ID, Microsoft 365, and endpoint management for macOS and Windows.
  • Automate manual work using PowerShell, shell scripting, Power Automate, and support IT projects and audits.

Totara is a global learning platform trusted by more than 1,500 organizations and 21 million users worldwide. We help organizations build workforce readiness through flexible learning, compliance, and talent development solutions for complex and highly regulated environments across public and private sectors.