Senior Sharepoint Developer

Job description

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.

• Salary to £100,000
• Hybrid working – 4 days in the office / 1 day remote
• Free lunch every Wednesday
• £100 monthly employee contribution towards lunch or other expenses

Senior SharePoint Developer Key Responsibilities:

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

Senior SharePoint Developer Skills & Requirements:

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

Extra information

Status

Open

Education Level

Secondary School

Location

City Of London

Type of Contract

Full-time jobs

Published at

04-03-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English