Senior .NET Developer with Azure - banking industry (f/m/x)

Nasze wymagania:
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

Mile widziane:
Knowledge of observability practices
Experience with automated testing

O projekcie:
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.

Zakres obowiązków:
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

Oferujemy:
Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People