Senior.Net Developer

Fyldis a Portuguese consulting company specializing in IT services.
We bring high-performance professionals into the field across various technological areas.
Inspired by sports management philosophy, we strive to achieve peak performance with each of our consultants.
We focus on training and excellence.
Join us for the next game
We are looking for an experienced.NET Developerready to take their career to the international stage and join an innovative software engineering team inBelgium.
If you have solid experience building scalable, enterprise-grade applications, modern backend architectures, and high-performance solutions within the Microsoft ecosystem, this is your next play
This is anexpat opportunity with full relocation support, designed for professionals holding avalid Portuguese Residence Permit (or EU Citizenship)who are eager to embrace a new challenge abroad.
Responsibilities
Designing, developing, and maintaining robust, scalable, and high-quality web applications and backend services using .
NET technologies (.NET Core / .NET 6+ / C#).
Building and optimizing RESTful APIs and microservices to ensure seamless integration across distributed systems.
Designing and maintaining relational database structures, writing optimized SQL queries, stored procedures, and ensuring data integrity (SQL Server / PostgreSQL).
Participating in software architecture discussions, applying Clean Code, SOLID principles, and proven design patterns.
Collaborating with cross-functional teams (Frontend, QA, DevOps, and Product) within Agile/Scrum delivery frameworks.
Integrating and maintaining automated unit, integration, and functional tests to ensure high code quality and test coverage.
Participating in CI/CD pipeline configurations, automated deployments, and release workflows.
Troubleshooting, debugging, and resolving application defects, investigating root causes, and implementing performance tuning.
Contributing to peer code reviews, technical documentation, and continuous process improvements within the team.
Requirements
Degree in Computer Science, Software Engineering, Information Technology, or a related field.
Proven professional experience in backend or full-stack software development with C# and the .
NET ecosystem (.NET Core, .NET 5/6/8, ASP.NET Core).
Strong hands-on experience designing and consuming RESTful APIs and web services.
Solid knowledge of relational databases, particularly SQL Server (or PostgreSQL/MySQL), including ORM frameworks such as Entity Framework Core / Dapper.
Good understanding of software engineering best practices, Clean Architecture, and SOLID principles.
Familiarity with version control tools (Git) and automated testing frameworks (xUnit, NUnit, or Moq).
Experience or familiarity with cloud environments (Azure or AWS) and containerization (Docker) is a strong plus.
Experience with frontend technologies (React, Angular, or TypeScript) is considered an asset.
Strong analytical and problem-solving mindset with high autonomy.
Excellent communication and collaboration skills to thrive in an international, multicultural environment.
Professional fluency in English (mandatory, both written and spoken).
Contract Type:International Expat Contract.
Relocation Support:Initial accommodation provided upon arrival in Belgium to ensure a smooth transition.
We value technical mastery, engineering quality, collaboration, and a passion for continuous learning.
If you are a .
NET Developer looking to expand your horizons, gain international experience, and make a significant impact across global projects, this opportunity is for you
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