Type of contract: B2B contract

Salary range: 125-160 PLN/H

What will you do?

Join a modernization initiative focused on transforming legacy applications into a cloud-native platform built on Microsoft Azure. You will work across backend, frontend, database, and cloud infrastructure, contributing to the design, development, migration, and continuous improvement of modern business-critical solutions. The role requires close collaboration with cross-functional teams in an Agile environment and offers opportunities to work with modern engineering practices, DevOps, and cloud technologies.

Your tasks

• Design and implement backend services and REST APIs using .NET and Clean Architecture
• Build and maintain React and TypeScript microfrontends integrated through module federation
• Develop and optimize database solutions using MSSQL and Azure SQL
• Create and maintain Infrastructure as Code using Terraform
• Build and support CI/CD pipelines in Azure DevOps
• Implement authentication and authorization solutions using Entra ID and MSAL
• Ensure application observability through monitoring, logging, and alerting solutions
• Analyze, refactor, and migrate functionality from legacy applications
• Develop and maintain automated unit, integration, API, and end-to-end tests
• Troubleshoot production issues and support deployments
• Participate in Agile ceremonies, effort estimation, code reviews, and solution design discussions

Requirements

• 5+ years of commercial experience with C# and .NET
• Strong knowledge of ASP.NET Core and REST API development
• Hands-on experience with Entity Framework Core
• Strong MSSQL and Azure SQL skills including query optimization and database design
• Practical experience with Microsoft Azure services
• Experience with Terraform and Infrastructure as Code
• Experience building CI/CD pipelines in Azure DevOps
• Knowledge of OAuth, JWT, and Entra ID authentication mechanisms
• Experience with automated testing frameworks
• Knowledge of application monitoring and structured logging solutions
• Good Git and code review practices
• Experience with React and TypeScript
• English at B2 level or higher
• openness to work hybrid from our client's office (Kraków) 6 days a month

Nice to have

• Azure Data Factory
• Databricks and Apache Spark
• Power BI
• SSRS
• Microfrontend architecture and module federation
• Docker
• Kubernetes and AKS
• Bicep or ARM templates
• Azure Service Bus
• Azure Event Hubs
• Experience modernizing legacy .NET applications
• Azure certifications such as AZ-204, AZ-400, or AZ-104
• HashiCorp Terraform Associate certification