Senior Full-Stack Developer – .NET, React, Azure & Terraform

Quick Facts

• Role: Senior Full-Stack Developer
• Focus: Hilda 2.0 modernization and migration of legacy applications to Azure architecture
• Work model: Krakow-based hybrid

Description

Unleash innovation at the forefront of cloud-native application development by transforming legacy systems into scalable, modern solutions. As a Senior Full-Stack Developer, you will work on the Hilda 2.0 modernization project, migrating legacy applications to a cutting-edge Azure architecture and supporting internal regulatory reporting in Israel.

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, optimize, and support CI/CD pipelines within Azure DevOps (automation and deployments)
• Integrate Azure AD (Entra ID) authentication, apply security best practices, and manage secrets via Key Vault
• Instrument services for observability, including 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 experience in full-stack development with C# / .NET (.NET 6+/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 such as App Service, Azure SQL, Storage, Key Vault, and Functions
• In-depth knowledge of Infrastructure as Code using Terraform (modules, multi-environment)
• Proven experience with Azure DevOps pipelines (YAML, release management)
• Skilled in building and securing REST APIs with OAuth / JWT authentication, including Azure AD integration
• Experience in automated testing frameworks (xUnit, Jest/Vitest, Playwright)
• Good understanding of observability tools like Application Insights and OpenTelemetry
• Strong Git practices and peer code review discipline
• Excellent command of English for technical communication (B2+)

Benefits

• Chance to lead complex technical transformations and drive innovation in a highly regulated environment

Qualifications

• Existing legal right to work in the European Union will be considered

Optional (Strong Plus)

• Production experience with React and TypeScript
• Familiarity with Data & Reporting stacks: Azure Data Factory, Databricks/Spark, Power BI
• Experience with microfrontends and module federation techniques
• Knowledge of Docker and Kubernetes (AKS)
• Bicep or ARM templates alongside Terraform
• Event-driven architectures (Service Bus, Event Hubs)
• Experience modernizing legacy UI and services (ASP.NET MVC/Razor, WPF, WinForms)
• Azure certifications (AZ-204, AZ-400, AZ-104)
• Language Required: communicative English (fluent)