Fullstack Developer - .NET 8/9 & React (m/f/d)

About us
Optimus 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 modernising legacy systems and building a new software architecture using the latest .NET 9 technology. The company has offices in Dresden, Bremen, and Köln.

Tasks

• Design, develop, and document the architecture of a newly acquired product and integrate standardised 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 8/9, ASP.NET Core, EF Core, React, REST, Microservices, and Azure cloud services
• Develop loosely coupled, resilient architectures designed for long-term scalability

Profile

• 3+ years experience within Software Development (C#)
• 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)
• Excellent communication skills
• Willingness to take operational responsibility within the team
• Fluency in German (B1 minimum) and solid English skills (also C1 level)