Principal Engineer-Microsoft 365 Platform

Role Summary:

We are seeking an experienced Microsoft 365 platform engineer with deep expertise in SharePoint Online infrastructure and development, and strong working knowledge across other M365 services (Teams, OneDrive, Exchange, Power Platform). This individual contributor role focuses on engineering a secure, scalable collaboration ecosystem, modernizing intranet experiences, and enabling AI-driven productivity through Copilot and Microsoft Graph. The position emphasizes SharePoint tenant administration, site provisioning automation, governance, and SPFx development, while ensuring compliance, reliability, and user-centric innovation across the Microsoft 365 suite.

Key Responsibilities:

SharePoint Infrastructure Engineering (Core Focus)

• Engineer and operate SharePoint Online at enterprise scale: multi-geo topology, performance tuning, storage optimization, and search schema management.

• Automate site provisioning and lifecycle management using PnP, PowerShell, and Azure Functions; enforce governance via SharePoint Advanced Management (SAM).

• Implement secure access patterns, conditional access compatibility, and certificate-based authentication for admin operations.

• Monitor tenant health, capacity, and DR readiness; maintain telemetry dashboards and operational runbooks.

Modern SharePoint Development

• Design and build SPFx web parts, extensions, and application customizers integrated with Microsoft Graph.

• Develop reusable components and accelerators; enforce CI/CD pipelines and secure coding practices.

• Optimize modern site experiences for accessibility, performance, and compliance.

Microsoft 365 Platform Engineering

• Collaborate on Teams, OneDrive, and Exchange integrations for unified collaboration workflows.

• Implement Power Platform solutions (Power Automate, Power Apps) for document lifecycle and business process automation.

• Build secure APIs and services leveraging Microsoft Graph for notifications, calendar, mail, and cross-service orchestration.

AI & Copilot Extensibility

• Enable Copilot scenarios within SharePoint and other M365 apps; design context providers and governance for AI-driven workflows.

• Implement retrieval-augmented generation patterns using Graph indexes; apply prompt engineering and validation for reliable outcomes.

• Track adoption and productivity impact of AI features through telemetry and KPIs.

Governance, Security & Compliance

• Define and enforce platform governance: taxonomy, metadata standards, sharing/security models.

• Ensure compliance with organizational and regulatory requirements for data protection, retention, and auditability.

• Publish change advisories for roadmap features and coordinate rollout plans.

Delivery & Collaboration

• Produce design documentation, PoCs, and production-grade implementations.

• Collaborate with UX, security, and business SMEs to deliver user-centered solutions.

• Share knowledge and best practices on SharePoint, Microsoft Graph, Copilot extensibility, and automation.

Required skills & qualification :

• Degree in Computer Science or equivalent experience.

• 10+ years in Microsoft 365/SharePoint engineering; 3+ years in advanced platform engineering roles.

• Preferred certifications: Microsoft 365 Developer Associate, SharePoint solutions Architect, Power Platform Developer, Azure Solutions Architect.

• Deep experience in SharePoint Online infrastructure engineering and SPFx development.

• Strong knowledge of Microsoft 365 services: Teams, OneDrive, Exchange, Azure AD, Microsoft Graph.

• Hands-on experience with Power Platform, Azure Functions, Logic Apps, and workflow automation.

• Familiarity with AI/Copilot extensibility and orchestration frameworks.

• Expertise in security and identity: OAuth2/MSAL, conditional access, app registration, and DLP.

Strategic & Interpersonal Skills

• Ability to balance innovation with compliance and operational reliability.

• Strong collaboration and communication skills; comfortable working across multiple teams.

• User-centric mindset with measurable impact on productivity and adoption.

Why GSK?

Uniting science, technology and talent to get ahead of disease together.

GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases – to impact health at scale.

People and patients around the world count on the medicines and vaccines we make, so we’re committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people.

Inclusion at GSK:

As an employer committed to Inclusion, we encourage you to reach out if you need any adjustments during the recruitment process.

Please contact our Recruitment Team at IN.recruitment-adjustments@gsk.com to discuss your needs.

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