Senior .NET C# Software Engineer

About the role

Rydoo is looking for a Senior Software Engineer with strong .NET and C# expertise to help shape the core of its AI‑powered expense and accounts‑payable platform. You will join a cross‑functional squad that builds fast, reliable services for millions of users worldwide.

Key responsibilities

• Design, develop and extend backend systems that power expense management.
• Implement and maintain REST APIs and micro‑services.
• Deliver new features to production, monitor performance and ensure maintainability.
• Contribute to front‑end work, especially Angular‑based components.
• Architect micro‑services and define service‑oriented interactions.
• Write automated tests and ensure code quality.
• Set up infrastructure and CI/CD pipelines using Infrastructure as Code.

Required profile

• Several years of professional backend development experience.
• Strong command of .NET and C#.
• Proficiency with an ORM such as Entity Framework or NHibernate and SQL Server.
• Experience optimizing performance and scalability for large user bases.
• Team‑player attitude with a focus on clean, testable code.
• Willingness to stay current with industry trends and emerging technologies.
• Relevant degree is a plus but not mandatory.

Required skills

• .NET
• C#
• Entity Framework (or NHibernate)
• SQL Server
• REST APIs
• Microservices architecture
• Infrastructure as Code
• Azure (or AWS/GCP)
• Angular (optional)
• Service Bus (optional)
• Agile/DevOps practices (optional)
• Large Language Models (optional)

What we offer

• International, informal company culture.
• Hybrid work policy.
• Opportunity to work on AI‑driven financial automation used by millions.
• Collaborative squads with autonomy and impact.