Senior .Net Developer

Tieto Iberia is part of the Tieto Group and combines local expertise with the global strength of Tieto, a leading software and digital engineering services company with worldwide presence and capabilities.

As part of our continued growth strategy, we are looking for a Senior .NET Developer to strengthen our team, contributing to the development, maintenance, and modernization of business-critical applications for our clients.

Key Responsibilities

• Design, develop, and maintain enterprise applications using C# and .NET technologies.
• Perform functional and technical analysis of business requirements.
• Develop and optimize SQL Server databases, queries, and stored procedures.
• Design and implement multi-threaded applications and high-performance software components.
• Troubleshoot complex technical issues and provide advanced application support.
• Apply software engineering best practices, including testing, code reviews, and continuous integration.
• Participate in application modernization and technology evolution initiatives.
• Create and maintain technical documentation.
• Collaborate with business stakeholders, analysts, and multidisciplinary technical teams.

Requirements

• Bachelor's degree in Computer Science, Information Systems, Software Engineering, or a related field.
• More than 6 years of professional experience in .NET development.
• Strong programming skills in C#.
• Solid experience with Microsoft SQL Server.
• Proven experience with multi-threaded application development.
• Advanced troubleshooting and debugging capabilities.
• Knowledge of .NET/COM interoperability.
• Strong understanding of Object-Oriented Design (OOD) principles.
• Solid SQL knowledge, including CRUD operations, data modeling, transaction management, and performance tuning.
• Experience with Test-Driven Development (TDD) and/or Behavior-Driven Development (BDD).
• Knowledge of Continuous Delivery practices and methodologies.

Nice-to-Have Skills

• Experience working in application maintenance and continuous enhancement teams.
• Familiarity with Agile methodologies and DevOps practices.
• Experience with CI/CD pipelines and automated deployment processes.
• Exposure to complex enterprise environments.

Key Competencies

• Dynamic and proactive attitude.
• Strong analytical and problem-solving skills.
• Ability to manage and align expectations with both team members and clients.
• Strong communication and teamwork skills.
• Ability to work independently and take ownership of development tasks.
• Commitment to quality, continuous improvement, and best development practices.

At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity.

Diversity, equity and inclusion | Sustainability | Tieto