Senior FullStack Developer (.Net & Angular)

We are Quadro Consulting, a growing company founded and based in Bonn. Our partner is a well-established North American business technology and payments company, with a century long history and a front-runner in its industry, more than 4.5 million businesses as clients.

Our team is growing, and we want you to join us!

As a Senior FullStack Developer, you will play a key role in shaping system architecture, driving best practices, and ensuring high performance across backend and frontend components. You will collaborate closely with cross-functional teams, contribute to CI/CD processes, and support continuous improvement initiatives.

Key responsibilities:

Design, develop, enhance, and maintain applications using .NET, C#, and .NET Core.

Build and deploy modern Angular applications.

Develop, document, and integrate RESTful APIs, ensuring seamless communication between front-end and back-end systems.

Utilize Swagger/OpenAPI for API documentation and integration.

Write optimized and efficient SQL queries; analyze and improve database performance in Oracle environments.

Integrate web services with external systems to ensure reliable data exchange.

Track, troubleshoot, and resolve defects, enhancements, and production issues.

Contribute to CI/CD processes by managing pipelines and automating deployments.

Participate in code reviews and follow best practices for clean, maintainable code.

What we’re looking for:

5+ years of hands-on experience with .NET Framework, .NET Core, and C#.

Strong experience building and maintaining Angular applications.

Advanced proficiency in SQL and Oracle databases, including performance tuning and query optimization.

Extensive experience designing and integrating REST APIs.

Strong understanding of JSON, API documentation standards, and system integration patterns.

Practical experience with CI/CD pipelines and deployment automation tools.

Experience working in agile development environments.

Not a must, but cool if you have it:

Experience with Microservices architecture.

Knowledge of OAuth, JWT, and API security.

Cloud experience (Azure or AWS).

Experience with unit testing and clean architecture principles.

What we're offering:

• Private health care.

• Paid sick leave.

• Main and additional equipment.

• Social events.

• Opportunity to apply your skills and learn new ones.

• Possibility of B2B cooperation.

If you’re interested to hear more about our company and this project, please feel free to apply. We would be happy to meet you and give all the necessary info about this role!

Only shortlisted candidates will be contacted.