SharePoint Developer and Administrator

Senior SharePoint Developer & Administrator – London (Hybrid) – Professional Services Environment.

Our client is a leading global law firm operating across major financial centres and supporting complex, high-profile clients across a range of industries. 

The Senior SharePoint Developer & Administrator will be responsible for designing, developing, administering, and modernising enterprise SharePoint environments across SharePoint Subscription Edition  and SharePoint Online.
 
This role combines hands-on development with platform administration, including system maintenance, upgrades, governance, and intranet design.

A key focus will be leading migration from SharePoint 2016 on-premise solutions to modern SharePoint platforms, including rewriting legacy solutions using SharePoint Framework  and modern architecture principles. 

Key responsibilities:

• Analyse business requirements and define appropriate SharePoint solution approaches (custom development vs out-of-the-box)
• Design, develop, and maintain solutions across SharePoint SE and SharePoint Online
• Lead migration from SharePoint 2016 to modern SharePoint platforms, including SPFx redevelopment of legacy web parts
• Design and maintain enterprise SharePoint Online intranet architecture, navigation, branding, and content structures
• Integrate SharePoint with internal systems and third-party platforms using REST APIs and Microsoft Graph
• Administer SharePoint SE and SharePoint Online environments, including permissions, service applications, site collections, and governance
• Perform system updates, patching, upgrades, and performance monitoring to ensure stability and compliance

Required skills and experience:
• Extensive hands-on experience with SharePoint SE and SharePoint Online administration and development
• Proven experience migrating SharePoint 2016 on-premise environments to modern SharePoint platforms
• Strong expertise in SharePoint Framework (SPFx) development
• Proficiency in TypeScript, JavaScript, React, HTML5, and CSS3
• Strong experience with REST APIs and Microsoft Graph integrations
• Solid C# and .NET experience for backend and integration development
• Experience administering SharePoint on-prem environments including patching, upgrades, and performance tuning

Regular office presence is expected in line with business needs. Competitive salary based on experience and qualifications, alongside a commitment to an inclusive and equal opportunity working environment.