IT Service Owner (IT SO) .NET Engineer – HYBRID MADRID

UST

Madrid, EShybridPosted Jul 8, 2026
Posting intelligenceActively listedReposted 4×, possible evergreen/ghost posting

Skills

postgreskubernetesjavascriptdockerazurekafkacicdcssc#

About the role

Role description

We are looking for the very Top Talent…and we would be delighted if you were to join our team!

More in detail, UST is a multinational company based in North America, certified as a Top Employer company with over 35,000 employees worldwide and presence in more than 30 countries. We are leaders in digital technology services, delivering large-scale technological solutions to top-tier organizations.

What are we looking for?

We are looking for an IT Service Owner (IT SO) with strong .NET engineering expertise to join our team and take part in the design, development, and testing of software modules within complex systems.

The ideal candidate will combine deep technical knowledge with strong collaboration skills to innovate and deliver high-quality, scalable, and well-integrated software solutions, including participation in legacy modernization initiatives.

Location: Hybrid – Madrid

Working model: 3 days at client´s office, Sol area, next to the underground.

Language: Advanced English (B2+ / C1 required)

Key Responsibilities

Design, develop, test, and maintain software modules ensuring optimal functionality and system integration

Participate in legacy modernization projects, including migration from .NET Framework to modern .NET platforms

Build and maintain web applications and RESTful APIs using ASP.NET Core

Develop and optimize data access layers using Entity Framework / EF Core

Work with SQL databases (SQL Server, PostgreSQL), including query optimization and troubleshooting

Collaborate with cross-functional teams to deliver scalable and high-quality solutions

Ensure smooth CI/CD processes, contributing to build, deployment, and release pipelines

Support applications in containerized environments (Docker; Kubernetes as a plus)

Troubleshoot and resolve complex production issues, performing root cause analysis

Apply software engineering best practices, including clean architecture, testing, and code reviews

Key Requirements

+6 years of experience in software engineering roles

Strong proficiency in C#, .NET Framework, and modern .NET (.NET Core / .NET 8+)

Hands-on experience with ASP.NET Core and REST APIs

Solid experience with SQL databases (SQL Server, PostgreSQL or similar)

Experience using Entity Framework / EF Core

Knowledge of CI/CD pipelines and Docker containerization

Strong debugging and production troubleshooting skills

Experience with JavaScript, HTML, CSS (Razor Pages is a plus)

Good understanding of observability concepts (OpenTelemetry is a plus)

Experience with messaging systems (RabbitMQ, Kafka, Azure Service Bus) is a plus

Familiarity with identity and authorization systems (Active Directory) is a plus

Bachelor’s or Master’s degree in Computer Science or related field

What can we offer?

23 days of Annual Leave plus the 24th and 31st of December

Comprehensive benefits package (Health Care Plan, insurances, teleworking compensation)

Flexible compensation plan (meals, transport, childcare, training, etc.)

Free access to training platforms and continuous learning

Professional stability and long-term career plans

Referral bonus program

Flexible salary payment options (12 or 14 payments per year)

Work-life balance measures (hybrid model, flexibility, summer schedule)

Access to UST Club discounts and wellness programs

If you would like to know more, don’t hesitate to apply and we’ll get in touch to provide further details. We are waiting for you!

At UST, we are committed to equal opportunities and do not discriminate based on race, gender, disability, age, religion, sexual orientation, or nationality. We actively promote inclusion and encourage applications from candidates with disabilities.

Skills

.net,c#,rest api,sql,

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.

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