Senior Sharepoint Developer - Hybrid at UST

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

Senior Sharepoint Developer - Hybrid at UST in Madrid, MD, ES.

Full time on site position offers great opportunities for career growth.

Key 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 technical improvements.
• Support application lifecycle activities including upgrades, patching, migrations, testing, and deployments.
• Develop and maintain .NET/C# components and services within the application landscape.
• Integrate SharePoint with enterprise applications through APIs, web services, and databases.
• Contribute to modernization initiatives and gradual replacement of legacy applications.
• Perform root-cause analysis and resolve complex production incidents.
• Ensure solutions comply with security, stability, performance, maintainability, and compliance requirements.
• Create and maintain technical documentation and development standards.
• Collaborate with business analysts, architects, infrastructure teams, security teams, and external providers.
• Participate in code reviews, testing, release management, and continuous improvement activities.

Mandatory Requirements:

• Several years of hands‑on experience with SharePoint On‑Premises development and support.
• Strong understanding of SharePoint architecture, including: Sites Lists & Libraries Permissions Workflows Web Parts Solution Deployment
• Strong experience with C# and .NET technologies.
• Experience with SQL Server and relational databases.
• Experience integrating applications via APIs and Web Services.
• Solid understanding of software engineering principles, source control, testing, deployment, and application lifecycle management.
• Experience maintaining and troubleshooting legacy codebases.
• Strong analytical and problem‑solving skills.
• Experience working in large‑scale enterprise environments.
• Excellent communication and collaboration abilities.
• Fluent English.

Nice to Have:

• Experience with Java and Java‑based applications.
• Experience with .NET Core / ASP.NET Core.
• Knowledge of JavaScript, TypeScript, and React.
• Experience with SharePoint modernization or migration projects.
• Knowledge of SharePoint Online / Microsoft 365 environments.
• Experience with GitLab, CI/CD pipelines, or similar DevOps tooling.
• PowerShell scripting and automation experience.
• Experience working within highly regulated industries, especially financial services.
• Understanding of secure software development and application risk management.

What can we offer?

• 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
• Numerous benefits (Health Care Plan, Internet Connectivity, Life and Accident Insurances).
• `Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan…).
• Free access to several training platforms.
• Professional stability and career plans.
• UST also compensates referrals from which you could benefit when you refer professionals.
• The option to pick between 12 or 14 payments along the year.
• Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…).
• UST Club Platform discounts and gym access discounts.

UST is committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation, or nationality.

We have a special commitment to Disability & Inclusion, and we are interested in hiring people with a disability certificate.

About UST

UST is a global digital transformation solutions provider. For more than 20 years, UST has worked side by side with the world’s best companies to make a real impact through transformation. Powered by technology, inspired by people and led by purpose, UST partners with their clients from design to operation. With deep domain expertise and a future-proof philosophy, UST embeds innovation and agility into their clients’ organizations. With over 30,000 employees in 30 countries, UST builds for boundless impact—touching billions of lives in the process.

Skills SharePoint, C#, .NET, Microsoft SQL Server