Senior/Lead .NET developer with strong Azure

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