About this role
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