Fyld is hiring: Senior Full Stack Developer .NET

At Fyld, we believe the future is built with people, technology, and strong values.

We are a Portuguese consulting company that operates with transparency, respect, and a focus on everyone’s growth. Here, every project is an opportunity to build real, lasting, and scalable solutions.

Our philosophy? Code for Big Solutions — because we don’t just build software to make things work, we build solutions that create real business value.

We're looking for an experienced Senior Full Stack Developer .NET with strong expertise in the Microsoft ecosystem, capable of working across backend and frontend development and contributing to the evolution and modernization of applications in On-Premises and Microsoft Azure environments.

By joining Fyld, you'll be part of a team where every member is challenged to innovate, collaborate and grow.

Your Profile:

• 3+ years of professional experience in software development, with strong experience in the Microsoft ecosystem
• Solid experience with C# and .NET / .NET Core / ASP.NET Core
• Strong experience developing web applications with ASP.NET MVC, JavaScript, HTML5 and CSS3
• Experience with Entity Framework / Entity Framework Core
• Experience developing and consuming REST APIs
• Strong experience with SQL and Microsoft SQL Server
• Experience with Git and version control systems, CI/CD processes and tools
• Knowledge and practical experience with Microsoft Azure
• Experience developing and maintaining solutions in On-Premises environments
• Experience working with Agile/Scrum methodologies
• Fluent Portuguese
• English at C1 level

We Value:

• Experience with React and modern frontend architectures
• Experience in ASP.NET MVC modernization and migration projects
• Practical experience with Microsoft Azure and hybrid On-Premises/Azure architectures
• Experience with Azure DevOps and CI/CD pipelines
• Knowledge of microservices, distributed and event-driven architectures
• Experience with Docker and containerized environments
• Knowledge of Redis and caching mechanisms
• Experience with observability, logging and application monitoring
• Knowledge of application security and OWASP best practices
• Knowledge of Clean Architecture and Domain-Driven Design (DDD)
• Experience working with high-availability and/or high-volume transactional solutions
• Practical use of AI tools such as GitHub Copilot, OpenAI Codex or equivalent to support software development
• Experience using AI for unit and integration testing, debugging, code analysis and problem solving
• Experience contributing to technological modernization initiatives

Availability to work in a hybrid regime in Lisbon, 3 days per week in the office

Our Values:

• Critical thinking and autonomy
• Focus on meaningful solutions and real results
• Respect, transparency, and continuous growth

Fyld. Code for what really matters.

If you're interested in joining Fyld, send your CV to: carolina.santos@fyld.pt

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