Senior Microsoft 365 Administrator

Title : Senior Microsoft 365 Administrator

Location : Bangalore | Mode : Hybrid | Relevant Experience : 8-12 Years

Company Description

Resillion is a global company with end-to-end capabilities : no matter your industry, your geographical location, or stage in your digital journey. With offices in North America, Europe, and Asia, Resillion will be by your side. Helping you and your organization realize your ambitions in cyber security, testing of digital media content and quality assurance.

Whether, testing, certification, (software) development, cyber security, or data-protection, the experts at Resillion do whatever it takes. We work as long and hard as necessary to get you to market.

About the Role

We are looking for a highly skilled Senior

Microsoft 365 Tenant Administrator

with little

Azure expertise

to manage and optimize our Microsoft 365 environment. This role focuses on

end-to-end tenant administration

and

tenant-to-tenant migrations , ensuring security, complaint, and seamless collaboration experience across the organization. Azure administration knowledge is an advantage.

Key Responsibilities

Microsoft 365 Administration

Manage and maintain core M365 services —

Exchange Online, SharePoint Online, Teams, OneDrive, Intune , and

Security & Compliance Center .

Implement and monitor

governance, security, and compliance policies

to ensure regulatory adherence and data protection.

Oversee system health,

performance monitoring , and

capacity planning

for M365 workloads.

Tenant Migrations

Plan and lead

Microsoft 365 tenant-to-tenant migrations

with minimal user disruption.

Perform

pre-migration assessments , execute detailed migration plans, and validate post-migration performance.

Manage

mail flow, identity synchronization , and ensure

data integrity

during migration projects.

Experience in

Merger and Acquisition

is an advantage

Azure & Identity Management

Administer

Azure Active Directory (Entra ID)

for identity and access management.

Configure and manage

Conditional Access ,

MFA , and

role-based access controls (RBAC) .

Support

hybrid identity solutions

including

Azure AD Connect

and

ADFS .

Device & Security Management

Administer

Microsoft Intune

for device compliance, application deployment, and endpoint protection.

Enforce

security baselines and compliance policies

across devices and applications.

Automation & Optimization

Develop and maintain

PowerShell scripts

to automate administrative tasks and reporting.

Monitor and optimize

licensing utilization ,

cost management , and

resource allocation

across M365 and Azure environments.

Support & Troubleshooting

Provide

Tier-3 support

and advanced troubleshooting for M365 and Azure-related issues.

Serve as the

escalation point

for complex incidents and collaborate with Microsoft Support when necessary.

Qualifications

7–11 years of hands-on experience in

Microsoft 365 administration and tenant migrations

(M365-to-M365, Google Workspace-to-M365, On-prem-to-Cloud, etc.).

In-depth knowledge of

Azure Active Directory ,

identity management , and

security best practices .

Proven experience with

Intune ,

Conditional Access ,

MFA , and

compliance frameworks .

Strong

PowerShell scripting

skills for automation and reporting.

Excellent

troubleshooting ,

documentation , and

communication

skills.

Preferred Certifications & Skills

Microsoft Certified : MS-102 (Microsoft 365 Administrator)

— required.

Experience managing

hybrid environments

and

complex migration scenarios .

Azure Administration knowledge or certification (e.g., AZ-104)

will be

highly preferred .

Familiarity with

Azure CLI

and automation / orchestration tools.

Understanding of

security and compliance frameworks

(ISO 27001, GDPR, etc.) is a plus.