Senior SharePoint Developer

Senior SharePoint Developer

Our prestigious US law firm client is seeking a highly skilled Senior SharePoint Developer with extensive experience migrating SharePoint 2016 on-premise solutions to modern SharePoint platforms. This permanent role, based in their stunning City offices, combines hands-on custom development, system maintenance, and intranet design.

\n
• Salary to £100,000
\n
• Hybrid working (3 days office / 2 days remote)
\n
• Free lunch every Wednesday
\n
• Generous employee contribution allowance towards lunch or other expenses
\n

Senior SharePoint Developer Key Responsibilities:

\n
• Design, develop, and support custom solutions across SharePoint Subscription Edition (SE) and SharePoint Online
\n
• Lead migration of SharePoint 2016 on-premise solutions to SE and Online
\n
• Build SPFx web parts, extensions, and integrations using TypeScript, JavaScript, React, and REST APIs
\n
• Manage updates, patches, and service packs to ensure stability, security, and compliance
\n
• Administer service and web applications, site collections, permissions, authentication, and governance
\n
• Provide technical leadership and mentor junior team members
\n
• Collaborate with project managers, business analysts, and stakeholders to deliver solutions aligned to requirements
\n
• Recommend improvements to development standards, governance, and platform architecture
\n

Senior SharePoint Developer Skills & Requirements:

\n
• Law firm experience highly advantageous
\n
• Extensive experience developing and administering SharePoint Subscription Edition (SE) and SharePoint Online, including migration from SharePoint 2016 on-premise
\n
• Strong expertise in SPFx development and modern front-end technologies (TypeScript, JavaScript, React, HTML5, CSS3)
\n
• Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET
\n
• Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting
\n
• Experience with Business Connectivity Services (BCS), External Content Types (ECTs), and SQL Server design and optimisation
\n