Fullstack .NET Developer

About the role

Syone is seeking a Fullstack .NET Developer to join a product‑oriented project, working on both backend services and modern frontend interfaces.

Key responsibilities

• Design, develop and maintain backend services and RESTful APIs using .NET and C#.
• Build and maintain workers, background jobs and integrations within the Microsoft ecosystem.
• Create responsive frontend solutions with Blazor and React.
• Design and optimise data models and queries in SQL Server.
• Deploy and manage applications on Microsoft Azure (App Services, Azure SQL, Functions, Azure DevOps).
• Use AI tools daily to support system design, coding and feature delivery.
• Collaborate with product and technical teams in an Agile environment to translate customer needs into technical solutions.
• Troubleshoot and resolve complex issues across the full stack.

Required profile

• Degree in Computer Science, Engineering or a related field.
• Strong professional experience with .NET, C# and building RESTful APIs.
• Hands‑on experience with Microsoft Azure services (App Services, Azure SQL, Functions, Azure DevOps).
• Proficiency in SQL Server data modelling, query development and performance optimisation.
• Experience developing modern web applications with Blazor or similar frameworks and with React.
• Fluency in Portuguese and English, both written and spoken.

Required skills

• .NET / C#
• Azure (App Services, Azure SQL, Functions, Azure DevOps)
• SQL Server
• Blazor
• React
• AI development tools
• Domain‑Driven Design (nice to have)
• Power BI (nice to have)