Senior Full-Stack Developer (.NET, React, Azure, Terraform)

Quick Facts

Senior Full-Stack Developer role for .NET, React, Azure, and Terraform modernization work. Hybrid opportunity based in Krakow.

Description

Work on the Hilda 2.0 modernization project, migrating legacy applications to a modern Azure architecture to support internal regulatory reporting in Israel. You will build backend services and REST APIs with .NET 9, develop React + TypeScript microfrontends, and support secure, automated, and observable cloud operations.

Responsibilities

• Design and develop backend services and REST APIs in .NET 9 using Clean Architecture principles.
• Build and maintain React + TypeScript microfrontends integrated via module federation.
• Evolve MSSQL / Azure SQL schemas, optimize queries, and implement stored procedures.
• Author Infrastructure as Code in Terraform to provision Azure resources across environments.
• Develop and support CI/CD pipelines in Azure DevOps, including automation and deployments.
• Integrate Azure AD (Entra ID) authentication, apply security best practices, and manage secrets with Key Vault.
• Instrument services for observability using Application Insights and structured logging.
• Troubleshoot production issues, implement fixes, and support continuous deployment cycles.
• Collaborate in Agile teams to plan, review, and refine work processes.

Requirements

• 5+ years of full-stack development with C# / .NET (including .NET 6+ / .NET 9) and ASP.NET Core.
• Strong hands-on expertise with EF Core and MSSQL / Azure SQL (query tuning, stored procedures).
• Practical experience with Azure services: App Service, Azure SQL, Storage, Key Vault, Azure Functions.
• In-depth knowledge of Infrastructure as Code using Terraform (modules, multi-environment).
• Proven experience with Azure DevOps pipelines (YAML, release/deployment management).
• Skilled in building and securing REST APIs with OAuth / JWT, including Azure AD integration.
• Experience with automated testing frameworks: xUnit, Jest/Vitest, Playwright.
• Good understanding of observability tools: Application Insights and OpenTelemetry.
• Strong Git practices and peer code review discipline.
• Excellent command of English for technical communication (B2+).
• Legal right to work in the European Union.

Benefits

• Lead complex technical transformations and drive innovation in a highly regulated financial domain.
• Modernize legacy systems into scalable, cloud-native Azure solutions.
• End-to-end impact across backend, frontend, infrastructure, and CI/CD.