Senior .Net Consultant with React and Azure (Kraków, PL, 30-302)

GFT Technologies SE; Kraków; Hybrid; PLN 172,000 - 220,000; Full time

Job summary

GFT Technologies SE in Kraków is seeking a senior .NET engineer to help modernize legacy apps into a cloud-native platform on Microsoft Azure. You will work across backend, frontend, database, and cloud infrastructure to design, migrate, and continuously improve critical business solutions in an Agile setting.

The role emphasizes CI/CD with Azure DevOps, Terraform, and Azure services, plus React/TypeScript frontends.

Qualifications

• 5+ years of commercial experience with C# and .NET
• Strong ASP.NET Core and REST API development
• Hands-on MSSQL/Azure SQL 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

Responsibilities

• 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

Skills

C#/.NET

ASP.NET Core

REST API

SQL Server/Azure SQL

Azure Cloud Services

Terraform

Azure DevOps

OAuth/JWT/Entra ID

React/TypeScript

Automated Testing

Logging/Monitoring

Tools

Terraform

Azure DevOps

React

TypeScript

MSSQL/Azure SQL

Job description

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