Senior .NET Developer with Azure banking industry

• Minimum 5 years of commercial full-stack experience with C# /.NET (including .NET 6+/9) and ASP.NET Core
• Strong skills in EF Core and MSSQL / Azure SQL, including query tuning and stored procedures
• Hands-on experience with Azure services such as App Service, Azure SQL, and Functions
• Proficiency in Infrastructure as Code using Terraform for multi-environment provisioning
• Experience with CI/CD processes in Azure DevOps, including YAML pipelines-as-code
• Practical knowledge of building and securing REST APIs with validation and authentication
• Experience with automated testing frameworks like xUnit and Jest / Vitest
• Familiarity with observability tools such as Application Insights and structured logging
• Good Git practices and code review discipline
• Advanced level of English

Nice to have

• Knowledge of observability practices
• Experience with automated testing

We are looking for a versatile Senior .NET Developer to join the modernization program, migrating a portfolio of legacy applications to a cloud-native Azure architecture. In this role, you will work on a variety of tasks across backend, frontend, database, and cloud/DevOps, contributing to the development of .NET APIs, React microfrontends, and Azure services. This position is based in Cracow and offers a hybrid work model. If you are passionate about modernizing applications and enjoy working in a collaborative environment, this opportunity may be the right fit for you. ,[Designing and implementing backend services and REST APIs in .NET 9 using Clean Architecture, Building and maintaining React + TypeScript microfrontends, Evolving MSSQL / Azure SQL schemas, Authoring and maintaining Infrastructure as Code in Terraform for Azure resource management, Building, optimizing, and supporting CI/CD pipelines in Azure DevOps, Integrating Azure AD authentication and applying security best practices, Instrumenting services for observability and health checks, Reading, refactoring, and extracting business logic from legacy .NET and T-SQL during migration, Writing and maintaining automated tests including unit, integration, and E2E tests, Troubleshooting production incidents and supporting deployments] Requirements: .NET, C#, TypeScript, AzureDevOps, CI/CD, Microsoft Azure, Power BI, React.js, Terraform, Module Federation, Azure SQL DBs, Microsoft SQL Server, Databricks, Automated testing, Observability Additionally: Medical care, Insurance, Sport cards, Language courses, Refferal programs, Welcome packs and other occasional gifts, Passion Sponsorship program, Regular integration events and trips, Contracts with the biggest brands, Diverse portfolio of clients, Flexible forms of employment, Internal training center, Mentoring program, Buddy Program & efficient onboarding process, Technology communities, Jubilee rewards, Profit sharing, Sport & hobby communities, Breakfast, drinks and fresh fruits in the office, Wide portfolio of technologies, Solid financial situation, Comfortable and well-equipped offices, MySii app, Invoice kiosk.