.Net Developer - Senior - EY GDS Spain - Hybrid

Senior .NET Developer – EY GDS Spain – Hybrid The opportunity As a Senior .NET Developer at EY Global Delivery Services (GDS) Spain , you will play a key role in designing and building modern, large-scale web applications and SaaS solutions for global clients. You will collaborate with internationally distributed Agile teams, leverage cutting-edge Microsoft technologies, and contribute to innovation through R&D, prototyping, and continuous improvement initiatives. This role offers the opportunity to influence architecture decisions, mentor junior developers, and deliver high-quality cloud-based solutions. As a member of our team in the EY GDS Spain office in Malaga , you’ll have a chance to extend your knowledge and experience by working on exciting digital transformation projects using modern technologies and best practices, while supporting clients in selecting and implementing the most suitable technical solutions. Your key responsibilities As a Senior .NET Developer, you will be responsible for the full software development lifecycle, from design to delivery and maintenance, in a fast-paced Agile environment. You will work closely with global stakeholders and customers to ensure high-quality, scalable, and secure solutions.

Design and implement new features and enhancements for existing applications Lead research and development activities for new libraries, components, and technologies Rapidly prototype new functionalities and applications Review code, ensure best practices, and mentor junior team members Identify, analyze, and fix bugs to ensure application stability and performance Communicate effectively within globally distributed Agile teams Handle technical queries from customers and business users Maintain high development standards and continuously strive for better code quality Actively participate in Agile ceremonies such as daily scrums, sprint planning, grooming sessions, demos, and team activities

Skills and attributes for success

Strong experience working in Agile and fast-paced development environments Excellent problem-solving skills with strong attention to detail Strong communication skills, both verbal and written, in English Ability to collaborate effectively in distributed and multicultural teams High sense of ownership, quality-oriented mindset, and continuous improvement attitude

To qualify for the role, you must have

Minimum 4–5 years of hands-on experience in software development. Degree in a technical field or equivalent practical experience Proven experience developing large-scale web applications and SaaS solutions Strong experience with Microsoft web technologies: C#, .NET Core

Ideally, you’ll also have

Expert-level experience in at least one modern frontend framework: Angular or React Expert-level knowledge of TypeScript for web application development Solid experience with relational databases: MS SQL / SQL Azure , EF 6 , EF Core Experience with non-relational databases such as MongoDB Familiarity with Azure services: Key Vault, Azure Storage, Queues, Blob Storage Experience in unit testing frameworks: NUnit, Moq, Jest Experience using distributed version control systems such as Git or SVN Experience with collaboration and project tracking tools like Azure DevOps, Jira, or Asana Cloud-based application development experience on Microsoft Azure , AWS , or Google Cloud Business analytics knowledge (a strong plus): Power BI, Azure Analysis Services, Tableau, Anaplan

Experience with responsive web design Good understanding of HTML5, CSS, and SCSS Experience integrating REST APIs and working with JSON Experience using and integrating Microsoft Power BI

What we look for We are looking for proactive, quality-driven professionals who enjoy solving complex technical challenges and sharing knowledge within the team. The ideal candidate demonstrates a strong sense of ownership, enjoys mentoring others,