Senior .NET Software Engineer / RA

Job Description

We are looking for an experienced Senior .NET Developer to join our team and contribute to the development of modern web applications in a cloud-native environment using Microsoft Azure. If you have a strong background in .NET, containerization, and CI/CD, and want to play a key role in shaping system architecture—this role is for you!

Your Responsibilities:

• Develop and maintain web applications using .NET / C#.
• Integrate REST APIs and manage data flow between systems.
• Optimize application performance and ensure scalability.
• Collaborate with DevOps teams on CI/CD processes (Azure DevOps).
• Maintain and enhance integrations with Azure AD B2C.
• Work with containerization (Docker) and infrastructure automation (Terraform).
• Participate in Agile (Scrum) project teams.
• Support analysts and testers, conduct code reviews, and mentor junior developers.

Qualifications

Must-Have Requirements:

• Minimum 5 years of commercial experience with .NET (C#).
• Experience with cloud-native projects on Microsoft Azure.
• Hands-on knowledge of Azure DevOps (pipelines, CI/CD).
• Proficiency in Docker and application containerization.
• Experience working with REST APIs.
• Familiarity with Azure AD B2C (authorization, authentication).
• Ability to integrate Terraform into CI/CD pipelines.
• Understanding of web application security standards.
• Experience working in distributed teams (English – B2/C1 level).
• Polish at the min. B2 level.

Nice to Have:

• Knowledge of performance optimization practices.
• Experience with microservices architecture.
• Familiarity with automated testing and deployment automation.
• Ability to make architectural decisions and mentor others.

Additional Information

Working from location: Warsaw, Poznan, Lublin, Katowice, Rzeszow or Lodz.