Senior Fullstack.NET Developer (m / f / d)

Optimus Search

Our client is an innovative, venture-capital backed German software company specialising in digital workplace solutions. They develop SaaS applications and enterprise add-ins that enhance collaboration, automate business workflows, and integrate systems across the Microsoft 365 ecosystem.

Operating within a modern public cloud environment, the company leverages cutting-edge .NET technologies and is actively integrating AI-driven features into its product portfolio.

Tasks

Develop high-performance full-stack applications using ASP.NET Core and React.

Design and implement scalable cloud-based and enterprise solutions.

Influence and shape modern software architectures.

Write clean, maintainable, and testable code following SOLID principles and best practices.

Develop and maintain RESTful APIs and integrations within the Microsoft 365 ecosystem.

Contribute to CI / CD pipelines and containerised deployments.

Work within an agile development environment using modern tooling.

Profile

Strong experience in full-stack development with C# / .NET and modern frontend frameworks.

Solid understanding of scalable cloud architectures (Azure preferred).

Experience working with APIs and system integrations.

Passion for clean code, maintainable systems, and high engineering standards.

Proactive mindset and ability to work independently within an agile team.

We offer

Flexible working model (Hybrid or 100% Remote).

Modern tech stack & cloud-native architecture.

Opportunity to influence architecture and technical direction.

Innovative, AI-focused product development.

Collaborative and forward-thinking engineering culture.