Fullstack .NET Engineer

Project details:

• Location: Hybrid work with 5 days in the office per month in Kraków.
• Contract type: B2B
• Working time: 09:00-17:00 CET.

Summary: The Fullstack .NET Engineer role aims to drive the modernization of legacy applications into a cloud-native Azure architecture, contributing to both backend and frontend development while supporting various components of the system.

Responsibilities:

• Design and implement backend services and REST APIs in .NET 9 with Clean Architecture.
• Build and maintain React + TypeScript microfrontends.
• Evolve MSSQL / Azure SQL schemas and write/tune queries with EF Core.
• Author and maintain Infrastructure as Code in Terraform for Azure resources.
• Optimize and support CI/CD pipelines in Azure DevOps.
• Integrate Azure AD for authentication and apply security best practices.
• Instrument services for observability and health checks.
• Refactor legacy code during migration.
• Write and maintain automated tests.
• Troubleshoot production incidents and support deployments.
• Collaborate in Agile ceremonies and conduct code reviews.

Key Requirements:

• 5+ years of commercial full-stack experience with C# / .NET.
• Strong EF Core and MSSQL / Azure SQL skills.
• Hands-on Azure experience.
• Infrastructure as Code experience with Terraform.
• CI/CD experience in Azure DevOps.
• Experience building and securing REST APIs.
• Automated testing experience.
• Observability knowledge.
• Good Git practices and code review discipline.

Nice to Have:

• Production experience with React and TypeScript.
• Familiarity with Azure Data Factory and Power BI.
• Microfrontends or module federation experience.
• Experience with Docker and Kubernetes.
• Knowledge of Bicep / ARM in addition to Terraform.
• Event-driven integration with Azure services.
• Experience modernizing legacy UIs and services.
• Relevant Azure certifications (AZ-204, AZ-400, AZ-104).