Staff .NET Developer
Workplace: Stockholm, Sweden
Expires: October 6, 2025
Join Rebtel Networks as a Staff .NET Developer, building complex, high-performing backend applications for global communication using modern technologies like .NET Core, GRPC, and Kubernetes, while maintaining legacy .NET Framework systems. Be part of a diverse global team focused on clean, scalable, and maintainable code, agile workflows, and continuous innovation.
Main requirements:
  • Expertise in .NET Core and .NET Framework technologies
  • Strong knowledge of SQL (MSSQL) and document-oriented databases like MongoDB
  • Experience with DevOps practices and deployment tools such as Git and Azure DevOps
  • Practical knowledge of containerization using Kubernetes
  • Experience integrating with GraphQL and REST APIs
  • Excellent communication skills in English
Responsibilities:
  • Contribute to architectural decisions and technical discussions
  • Write clean, robust, and testable code for critical components
  • Lead and collaborate with team members to deliver quality solutions
  • Maintain and modernize legacy .NET Framework systems
  • Participate in agile workflows and knowledge-sharing activities
Required hard skills:
  • .NET Core
  • .NET Framework
  • ASP.NET
  • MSSQL
  • MongoDB
  • Git
  • Azure DevOps
  • Kubernetes
  • GraphQL
  • REST APIs
Recommended hard skills:
  • Azure services and infrastructure (e.g., application gateways, load balancers)
  • Distributed systems and messaging (RabbitMQ, gRPC)
  • Experience in FinTech, payment platforms, or large-scale mature products
  • Focus on maintainability, scalability, and product evolution
Soft skills:
  • Excellent communication skills
  • Collaborative and proactive mindset
  • Curious and experimental with new technologies
  • Strategic vision for product and codebase growth
  • Ability to elevate team performance and mindset
  • Pleasant and professional work attitude
Coding languages:
  • C#
Frameworks:
  • .NET Core
  • .NET Framework
  • ASP.NET
Natural languages:
  • English (Proficient)
Cultural skills:
  • Working effectively in a diverse, international team
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