Sr Full Stack .NET Developer
Experience Level: Professional
Job Type: Regular
Location: Barcelona, ES, 8034
Requisition ID: 10288
As a Full Stack .NET Developer, you will develop and maintain distributed solutions using ASP.NET, ASP.NET Core, and Angular front‑end applications. You will work with n‑tiered .NET Framework and .NET Core backend solutions, including WCF Services, APIs, and Windows Services, while interacting with MS SQL and SAP data layers. Your role involves refactoring legacy systems, managing technical debt, and collaborating with the BA and Leadership team within an Agile framework.
This is a hybrid position based in our Barcelona, Spain where the expectation is to be onsite a minimum of four days a week.
Key Responsibilities
- Develop Full Stack .NET solutions in a distributed landscape consisting of ASP.NET, ASP.NET Core, with and Angular front‑end applications and SQL.
- Backend solutions are, primarily, n‑tiered .NET Framework and .NET Core implementations; technologies include: WCF Services, APIs, Windows Services and Console Apps. Backend solutions interact with MS SQL and SAP data layers.
- Responsible for refactoring and rearchitecting legacy systems and tackling technical debt while balancing the risks of refactoring with the scope of new feature development.
- Collaborate with the BA and Leadership team to create an actionable development plan as work is funneled through the Agile development process.
- Develop applications using .NET Framework or .NET Core with Angular and maintain applications using OOP principles, Web API, and Web/WCF technologies.
- Apply SOLID principles and Clean Architecture patterns to ensure scalable and maintainable codebases.
- Analyze and optimize algorithms to improve application performance and efficiency.
- Create and maintain comprehensive technical documentation for codebases and applications.
- Write high-quality, well‑structured code with a focus on continuous improvement and best practices.
- Collaborate effectively within cross‑functional teams and work independently to meet project goals.
- Utilize Agile methodologies and manage source control using TFS/Git, including branching strategies.
Required Qualifications
- 5+ years of .NET Framework development experience.
- Strong debugging, troubleshooting and problem‑solving skills.
- Proficiency in SQL and backend data integration.
- Excellent English communication (writing and speaking) skills.
- Detail‑oriented with a commitment to code quality and continuous improvement.
Preferred Qualifications
- Bachelor’s degree in Software Engineering, Computer Science, or similar.
- 3+ years of .NET Core development experience strongly preferred.
- Experience with WinForms and WCF service development, as well as experience using 3rd party APIs for data retrieval and creation.
- Understanding of UML and the ability to create UML diagrams.
- Knowledge of SharePoint development.
We are an Equal Employment Opportunity (EEO) employer and welcome all qualified applicants. Applicants will receive fair and impartial consideration without regard to any characteristics protected by applicable law, including race, color, religion, sex (as defined by law), national origin, age, military or veteran status, genetic information, or disability.
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