Senior Microsoft 365 Engineer — Cloud & Infrastructure Lead

Birlasoft; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Birlasoft Ltd. in London is seeking an experienced Senior Microsoft 365 Engineer to design, implement, administer, and optimize Microsoft 365 services across a large enterprise environment.

The role focuses on collaboration, messaging, identity, security, governance, and automation within the Microsoft ecosystem. The candidate will manage Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID, and Power Platform; provide Tier 3 support; administer tenant licensing and governance; and

Qualifications

• 7+ years of infrastructure/platform engineering experience.
• 5+ years of Microsoft 365 engineering and administration experience.
• Strong hands-on expertise in Exchange Online, Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Entra ID, Power Platform.

Responsibilities

• Design and support Microsoft 365 services including Exchange Online, Teams, SharePoint Online, OneDrive, Power Platform, and Entra ID.
• Provide Tier 3 support for complex identity, collaboration, and messaging issues.
• Manage Microsoft 365 tenant administration, licensing, governance, and user lifecycle management.
• Implement and maintain security, compliance, retention, and information protection solutions.
• Administer Entra ID, Hybrid Identity, Conditional Access, MFA, and Identity Governance.
• Manage Exchange Online mail flow, transport rules, messaging security, and hybrid environments.
• Develop automation using PowerShell and Microsoft Graph API.
• Monitor platform health, performance, security, and adoption trends.
• Create technical documentation, operational procedures, and knowledge articles.
• Collaborate with security, infrastructure, and business teams on enterprise solutions.
• Mentor junior engineers and contribute to Microsoft 365 roadmap and architecture decisions.

Skills

Exchange Online

Microsoft Teams

SharePoint Online

OneDrive for Business

Microsoft Entra ID

Power Platform

Hybrid Identity

Active Directory integration

Conditional Access

MFA

PowerShell scripting

Microsoft Graph API

Governance, security, and compliance

Git / GitHub

Education

Bachelor's degree in Computer Science, Information Technology, Engineering, or related field

Tools

PowerShell

Microsoft Graph API

Power Platform Admin Tools

Job description

Birlasoft Ltd. in London is seeking an experienced Senior Microsoft 365 Engineer to design, implement, administer, and optimize Microsoft 365 services across a large enterprise environment.

The role focuses on collaboration, messaging, identity, security, governance, and automation within the Microsoft ecosystem. The candidate will manage Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID, and Power Platform; provide Tier 3 support; administer tenant licensing and governance; and