Fullstack .NET Engineer: Azure, Blazor & React

Syone; Lisboa; On-site; EUR 42,000 - 64,000; Full time

Job summary

Syone is seeking a Fullstack .NET Developer with strong C#, Azure, and modern frontend skills for a product-oriented project. You will own the full development lifecycle, build RESTful APIs with .NET, and create backend workers while also delivering Blazor and React-powered frontend interfaces.

You'll work closely with product and technical teams in an Agile setting, using AI tools daily to aid design, coding, and feature delivery, and you will engage with Azure services, SQL Server data

Qualifications

• Degree in Computer Science, Engineering, or a related field
• Strong professional experience with .NET and C#
• Experience building RESTful APIs, workers, and background jobs within the Microsoft ecosystem
• Hands-on experience with Microsoft Azure: App Services, Azure SQL, Functions, and Azure DevOps
• Strong knowledge of SQL Server, data modeling, queries, and performance optimization
• Experience developing modern web apps using Blazor or similar frontend frameworks
• Experience with React for frontend development
• Practical experience using AI tools daily for design, coding and delivery
• Strong problem-solving and troubleshooting across the stack
• Product-oriented mindset with customer-focused delivery
• Ability to work in collaborative Agile environments
• Good technical communication with technical and non-technical stakeholders
• Fluency in Portuguese and English

Responsibilities

• Own end-to-end development lifecycle of new features from design to delivery
• Develop and maintain backend services and RESTful APIs using .NET and C#
• Build workers, background jobs, and integrations within the Microsoft ecosystem
• Develop responsive frontend using Blazor and React
• Ensure integration between backend, frontend and cloud infra
• Design and optimize data solutions using SQL Server
• Develop, deploy and manage apps on Microsoft Azure (App Services, Azure SQL, Functions, DevOps)
• Use AI tools daily to support design, coding and feature delivery
• Collaborate with product and tech teams to translate customer needs into solutions
• Troubleshoot complex issues across full stack
• Collaborate in an Agile environment and contribute to continuous improvement

Skills

C#

NET framework

RESTful APIs

Azure

Blazor

React

Agile

English

Portuguese

AI tools

Problem solving

Product mindset

Technical communication

Education

Degree in Computer Science/Engineering

Tools

Azure DevOps

App Services

Azure Functions

Azure SQL

SQL Server

Job description

Syone is seeking a Fullstack .NET Developer with strong C#, Azure, and modern frontend skills for a product-oriented project. You will own the full development lifecycle, build RESTful APIs with .NET, and create backend workers while also delivering Blazor and React-powered frontend interfaces.

You'll work closely with product and technical teams in an Agile setting, using AI tools daily to aid design, coding, and feature delivery, and you will engage with Azure services, SQL Server data