Senior SharePoint Developer

EPAM Systems Inc; España; Hybrid; EUR 55,000 - 85,000; Full time

Job summary

EPAM Systems Inc. in Madrid hires a Senior SharePoint Developer to manage on-premises SharePoint solutions within a modernizing enterprise environment. The role focuses on balancing stability, compliance and forward motion in private banking technology.

You will develop, troubleshoot, and integrate SharePoint components, upgrade paths and .NET/C# services, working across APIs, databases and external providers in a hybrid Madrid office.

Qualifications

• Several years of hands-on experience developing SharePoint On-Premises solutions.
• Strong understanding of SharePoint architecture: sites, lists/libraries, permissions, workflows and deployment.
• Excellent C# and .NET development experience.
• Experience with SQL Server and relational databases.
• Experience integrating SharePoint with APIs or web services.
• Knowledge of modern frontend technologies: JavaScript, TypeScript, React.
• Experience with SharePoint migrations or modernization projects.
• Experience with SharePoint Online or Microsoft 365 in hybrid or migration scenarios.
• Experience with GitLab, CI/CD pipelines or similar tooling.
• PowerShell scripting and automation.
• Experience in regulated industries such as financial services.
• Understanding of secure software development and vulnerability management.

Responsibilities

• Develop, maintain, enhance and troubleshoot SharePoint On-Premises solutions and build custom components.
• Analyze legacy SharePoint and implement improvements.
• Support lifecycle activities including upgrades, migrations, patching, testing and deployment; develop .NET/C# components.
• Work with APIs, web services, databases and integrations between SharePoint and other enterprise applications.
• Contribute to modernization and gradual replacement of legacy SharePoint apps.
• Perform root-cause analysis and resolve complex issues.
• Ensure solutions meet security, stability, maintainability and compliance.
• Maintain technical documentation and contribute to standards and best practices.
• Collaborate with business analysts, application managers, infrastructure and security teams.
• Participate in code reviews, testing, release management and continuous improvement.

Skills

SharePoint On-Premises

C#

.NET

SQL Server

APIs

Web services

PowerShell

GitLab

CI/CD

React

TypeScript

Java

SharePoint migrations

Microsoft 365

Security basics

Vulnerability management

Tools

GitLab CI/CD

Job description

Legacy platforms do not modernize themselves, and every technical debt decision eventually comes due. The Senior SharePoint Developer role in Madrid sits at the intersection of business-critical SharePoint On-Premises applications and the push for enterprise modernization. In this role, you decide how legacy and new technologies coexist and evolve in a complex environment. The person in this position shapes the future of application landscapes by balancing stability, compliance and forward motion. This is a hybrid role based in Madrid's city center, ideal for those eager to thrive in a dynamic environment and make a significant impact in private banking technology. Join EPAM and contribute to shaping the future of financial services in Spain!

Responsibilities

• Develop, maintain, enhance and troubleshoot solutions running on SharePoint On-Premises, and design and implement custom SharePoint components, workflows, integrations and application functionality
• Analyze existing or legacy SharePoint solutions and implement technical improvements
• Support application lifecycle activities including upgrades, migrations, patching, testing and deployment, and develop and maintain .NET/C# components and services related to the SharePoint application landscape
• Work with APIs, web services, databases and integrations between SharePoint and other enterprise applications
• Contribute to the modernization and gradual replacement of legacy SharePoint applications where appropriate
• Perform root‑cause analysis and resolve complex application incidents and technical problems
• Ensure solutions meet requirements regarding security, stability, maintainability, performance and compliance
• Maintain technical documentation and contribute to development standards and best practices
• Collaborate with business analysts, application managers, infrastructure teams, security teams, architects and external providers
• Participate in code reviews, testing, release management and continuous improvement activities

Requirements

• Several years of hands‑on experience developing and maintaining SharePoint On-Premises solutions
• Strong understanding of SharePoint architecture, including sites, lists/libraries, permissions, workflows, web parts and solution deployment, and experience with SharePoint development technologies
• Good development experience with C# and the .NET ecosystem
• Experience with SQL Server and relational databases
• Experience integrating SharePoint with other applications and services via APIs or web services
• Good understanding of software engineering principles, source control, testing, deployment and application lifecycle management
• Ability to analyze and maintain existing or legacy code bases
• Strong troubleshooting and analytical skills
• Experience working in complex enterprise IT environments
• Structured and solution‑oriented working style
• Nice to have Experience with Java or Java‑based applications
• Experience with modern .NET or ASP.NET Core
• Knowledge of modern frontend technologies such as JavaScript, TypeScript and React
• Experience with SharePoint migrations or modernization projects
• Knowledge of SharePoint Online or Microsoft 365, particularly when supporting hybrid or migration scenarios
• Experience with GitLab, CI/CD pipelines or similar development tooling
• PowerShell scripting and automation experience
• Experience working within regulated industries such as financial services
• Understanding of secure software development, vulnerability management and application risk management