Senior Fullstack (.NET) Developer (K/M)

Astek is a global engineering and IT consulting group founded in 1988 in France, supporting international clients in product and service development and digital transformation. The group has over 10,000 employees engaged in diverse technological and engineering projects worldwide, with a turnover of 730 million euros in 2025.

• Minimum 8 years of commercial software development experience
• Expert knowledge of C# and .NET 8
• Experience building and maintaining microservice architectures
• Practical knowledge of ASP.NET Core, Entity Framework Core, and REST API
• Experience with Kafka, MassTransit, or similar asynchronous communication platforms
• Experience with PostgreSQL, SQL Server, and MongoDB
• Good knowledge of Docker, Kubernetes, and Helm
• Experience with OpenTelemetry, Prometheus, and Grafana
• Familiarity with React and TypeScript
• Experience working with Azure DevOps or GitHub
• Ability to independently design solutions and make technical decisions
• Fluent communication skills in English, both spoken and written

Nice to have:

• Experience creating frameworks or internal platforms
• Knowledge of workflow solutions and process systems
• Experience with AI tools supporting software development (e.g., Microsoft Copilot)

• Develop and extend a proprietary workflow framework using C#
• Design and develop microservices based on .NET 8
• Create and enhance frontend components with React
• Develop and maintain REST APIs compliant with OpenAPI standards
• Collaborate with clients during deployment and solution validation
• Create technical documentation
• Develop automated testing frameworks
• Troubleshoot production environment issues
• Cooperate with the product team to define and implement new features

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