Senior Fullstack Developer - .NET & Angular 19 (m/f/d)

Senior Fullstack Developer - .NET & Angular 19 (m/f/d)

Senior Fullstack Developer - .NET & Angular 19 (m/f/d)

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OOptimus Search has partnered with one of Germany’s leading product-based companies focused on energy efficiency and the reduction of CO₂ emissions , contributing to a more sustainable future . Due to significant success over the past five years, the company is currently in a phase of hyper-growth , offering a clear path for career advancement . They are now seeking Senior Fullstack .NET Developers to join newly formed teams responsible for modernizing legacy systems and building a new software architecture using the latest .NET 9 technology. The company has offices in Aachen , Bremen , and Köln .

Your Responsibilities as a Senior Fullstack Developer :

• Design , develop , and document the architecture of a newly acquired product and integrate standardized software solutions
• Extract components from a legacy system and migrate them to modern, cloud-based platforms
• Coordinate and manage system interfaces in collaboration with cross-functional teams
• Engage in full-stack development using C#.NET 9 , ASP.NET Core , EF Core , Angular 19 , RxJS , NgRx , REST , microservices , and Azure cloud services
• Develop loosely coupled , resilient architectures designed for long-term scalability

What We’re Looking For :

• A passion for software engineering in a cloud-native environment
• Hands-on experience with Domain-Driven Design (DDD)
• Strong focus on code quality and test-driven development (TDD)
• Willingness to take operational responsibility within the team
• Fluency in German (C1 minimum) and solid English skills (also C1 level)

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering, Information Technology, and Administrative

• Industries

  IT System Custom Software Development

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