Senior SharePoint Developer — Hybrid (C#/.NET)

UST; Madrid; On-site; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Health Care Plan

Internet Connectivity

Life and Accident Insurances

Retribución Flexible program

Training platforms

Career stability and plans

Referral bonuses

Remote work policy / WFH options

Job summary

UST in Madrid is seeking a Senior SharePoint Developer for a full-time, on-site role. You will develop, maintain, and troubleshoot SharePoint On-Premises solutions, design custom components, and integrate with enterprise applications while collaborating with business analysts, architects, and security teams.

The ideal candidate brings deep experience with SharePoint architecture, C# and .NET, SQL Server, and APIs.

Qualifications

• Hands-on experience with SharePoint On-Premises development and support.
• Strong understanding of SharePoint architecture: Sites, Lists, Permissions, Workflows, Web Parts, Solution Deployment.
• Extensive C# and .NET technology experience.
• Experience with SQL Server and relational databases.
• Experience integrating applications via APIs and Web Services.
• Knowledge of software engineering principles, source control, testing, deployment, and lifecycle management.
• Experience maintaining and troubleshooting legacy codebases.
• Excellent communication and collaboration abilities.
• Fluent English in a large-enterprise environment.

Responsibilities

• Develop, maintain, enhance, and troubleshoot SharePoint On-Premises solutions.
• Design and implement custom SharePoint components, workflows, integrations, and application functionality.
• Analyze existing SharePoint applications and implement improvements.
• Support lifecycle activities including upgrades, patching, migrations, testing, and deployments.
• Develop and maintain .NET/C# components and services.
• Collaborate with analysts, architects, infrastructure, security, and external providers.
• Participate in code reviews, testing, release management, and continuous improvement.

Skills

SharePoint On-Premises

C# & .NET

SQL Server

APIs & Web Services

Legacy code troubleshooting

English fluency

Tools

PowerShell

Job description

UST in Madrid is seeking a Senior SharePoint Developer for a full-time, on-site role. You will develop, maintain, and troubleshoot SharePoint On-Premises solutions, design custom components, and integrate with enterprise applications while collaborating with business analysts, architects, and security teams.

The ideal candidate brings deep experience with SharePoint architecture, C# and .NET, SQL Server, and APIs.