Senior .NET Developer (Azure Cloud)

Quick Facts

• Location: Wrocław, Poland
• Work model: Hybrid (4 days per week in the office)

Description

We are looking for an experienced Senior .NET Developer with strong Microsoft Azure expertise to design, develop, and maintain scalable, secure, high-performance backend services and cloud-native applications. You will work extensively with C#, modern .NET (.NET 6+), Azure Functions, Azure Blob Storage, and Azure Key Vault, collaborating in an Agile environment from design and implementation through deployment and production support.

Responsibilities

• Design, develop, and maintain scalable backend applications and APIs using C# and .NET 6+
• Build and deploy serverless applications using Azure Functions
• Develop and optimize cloud-based data processing with Azure Blob Storage and Azure Storage Accounts
• Implement secure configuration, secrets, and certificate management using Azure Key Vault
• Design and implement integrations with Azure services including Azure Service Bus and Azure App Services/Web Apps
• Apply software engineering best practices (clean code, SOLID principles, design patterns, code reviews, automated testing)
• Build, maintain, and improve CI/CD pipelines using Azure DevOps or GitHub Actions
• Ensure application security, scalability, availability, performance, and operational reliability
• Troubleshoot production issues and perform root-cause analysis with long-term improvements
• Contribute to technical design decisions and continuous improvement initiatives
• Collaborate with cross-functional teams in Agile/Scrum
• Share technical knowledge and support a culture of engineering excellence

Requirements

• 7+ years of professional software development experience, backend-focused
• Strong hands-on experience with C# and modern .NET (.NET 6 or later)
• Proven production experience designing, developing, and deploying Azure Functions
• Strong knowledge of Azure Storage Accounts and Azure Blob Storage (containers, access tiers, lifecycle/security concepts)
• Hands-on experience with Azure Key Vault (secrets, certificates, access management)
• Experience integrating Azure services (Azure Service Bus, Azure App Services/Web Apps)
• Strong understanding of RESTful APIs, asynchronous programming, and event-driven architecture
• Solid knowledge of OOP, SOLID, design patterns, and clean architecture
• Experience with automated testing and code reviews
• Practical CI/CD pipeline experience using Azure DevOps or GitHub Actions
• Understanding of application security (authentication, authorization) and cloud security best practices
• Experience working in Agile/Scrum teams
• Strong analytical, troubleshooting, and problem-solving skills
• Good communication skills in English

Benefits

• Hybrid work model in Wrocław (4 days per week in the office)
• Hands-on senior role building reliable, scalable cloud solutions on Azure
• Opportunity to contribute to engineering best practices and production reliability