Senior .NET Full-Stack Engineer (German-speaking)

Acropolium is looking for a Senior .NET Full-Stack Engineer to join a long-term enterprise project focused on maintaining and improving existing business systems.
This is not a greenfield development role.
The main focus is working with mature enterprise platforms, understanding existing architecture, supporting ongoing development, resolving production issues, and gradually modernizing the system together with the team.
We are looking for engineers who feel comfortable in legacy environments, can quickly understand complex business logic, and make pragmatic technical decisions.

Project Details
 

• Location: Remote
• Collaboration: Full-time
• Long-term project
• International team environment

Responsibilities
 

• Support and maintain existing enterprise applications
• Analyze, troubleshoot, and resolve production and business issues
• Develop new features within existing systems
• Participate in gradual modernization and refactoring initiatives
• Collaborate closely with product owners, QA engineers, and developers
• Write clean, maintainable, and production-ready code
• Participate in technical discussions, estimations, and code reviews

Requirements
 

• 5+ years of commercial experience with C# / .NET
• Strong experience with legacy enterprise applications
• Experience supporting and improving existing business systems
• Solid knowledge of ASP.NET / .NET Core
• Experience with SQL databases
• Frontend experience with Angular or React
• Understanding of APIs and microservices architecture
• Experience working in enterprise environments
• German language — B2+ level (spoken and written)
• English — good working level

Nice to Have
 

• Experience with Azure or AWS cloud environments
• Experience with Docker and CI/CD pipelines
• Experience with message brokers or distributed systems
• Understanding of monolith modernization approaches
• Experience in long-term support and maintenance projects

Our Hiring Process
 

1. Intro call with Recruiter
2. Client Interview
3. Offer Stage

What We Offer

Culture & People-First Approach
 

• 💙 On average, team members stay at Acropolium for more than 5 years
• 🤝 Strong internal communication & empathy — we’re human-first, KPI-second
• 👨‍👩‍👧‍👦 Family values & social engagement are encouraged
• 👋 Warm onboarding and supportive team environment
• 🗣️ Open communication, feedback culture, and support for individual growth

Employee Well-being & Development
 

• 🎖️ Ongoing care and support for employees serving in the military
• 📚 Learning culture with internal knowledge sharing and support for external courses
• 🧭 Personal Development Plans (PDPs) to support long-term career growth
• 📈 Transparent performance review and compensation processes