April 24, 2026

Senior/Lead .NET developer with strong Azure

Senior • Remote

130 - 180 PLN

Wroclaw, Poland

The client is building a component — an AI-powered platform optimizing the full field-work cycle of consultants, turning dispersed data into actionable business recommendations. The solution is built on a modular Azure architecture with a controlled RAG layer, ensuring full auditability, data sovereignty, and seamless integration with the client's existing technology ecosystem.

Requirements:

  • Very strong .NET experience (.NET 8+ and C# at senior/lead level)

  • Experience with Azure cloud environments: Entra ID (SSO, MFA, RBAC), Azure SQL, App Service or Container Apps, Blob Storage, Key Vault

  • Docker, Terraform

  • Integration experience: REST API and OpenAPI (documentation, contracts, versioning)

  • Strong knowledge of SQL Server and EF Core (migrations, query optimization)

  • Experience with data warehouses

  • Application security: data isolation, encryption, auditability

  • AI Tooling: Proficiency with tools like GitHub Copilot to maximize productivity and code quality

  • Strong communication skills and ability to clearly articulate technical ideas

  • Very good English (spoken and written)

Nice to have:

  • Clean Architecture / CQRS, MediatR

  • Polly (retry, circuit breaker) and external API integration

  • Basic understanding of RAG and LLM APIs (session context, conversation history)

  • xUnit, integration testing

  • Angular — sufficient proficiency to design API contracts for frontend needs

Main responsibilities:

  • Designing and delivering secure, scalable, and maintainable .NET 8+ / C# backend solutions within a cross-functional Agile team

  • Building and maintaining REST APIs with full OpenAPI documentation, versioning, and contract-first design to support frontend and third-party integrations

  • Working with Azure cloud services including Entra ID (SSO, MFA, RBAC), Azure SQL, App Service or Container Apps, Blob Storage, and Key Vault

  • Implementing and maintaining data access layers using EF Core and SQL Server, including migrations, query optimization, and data warehouse integrations

  • Ensuring application security best practices: data isolation, encryption, and auditability

  • Contributing to infrastructure automation using Docker and Terraform

  • Providing technical guidance, participating in solution design, and supporting architectural decisions across the team

  • Troubleshooting and maintaining existing codebases, including components developed by other engineers

  • Leveraging AI development tools (e.g. GitHub Copilot) to enhance productivity and code quality

  • Documenting technical decisions, architecture, and progress in accordance with project and compliance requirements

  • Preparing reliable estimates and taking full ownership of assigned deliverables

  • Staying current with modern engineering practices and emerging technologies relevant to the stack

Tech stack:

  • .NET v8+ and C#

  • EF Core

  • Azure: Entra ID (SSO, MFA, RBAC), Azure SQL, App Service or Container Apps, Blob Storage, Key Vault

  • RestAPI and OpenAI

  • SQL Server

  • AI tooling

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