Senior Software Developer (.NET/C#)

Quick Facts

• Role: Senior Software Developer (.NET / C#)

• Focus: Complex .NET software development, modern architecture, clean code, REST microservices

Description

As a Senior Software Developer, you will develop complex software solutions in the .NET ecosystem with a strong emphasis on modern architecture and clean code. You will implement C# / .NET Core (.NET 10) solutions and build high-performance REST APIs for microservice architectures, ensuring code quality with Clean Code, SOLID, and testing. You will also perform code reviews, mentor teammates, and contribute new tools and best practices.

Responsibilities

• Develop modern solutions with C# and .NET Core (.NET 10)

• Implement REST APIs in microservice architectures

• Ensure code quality using Clean Code, SOLID, and testing

• Conduct code reviews and provide technical mentoring

• Work with relational databases (MS SQL Server, Oracle, PostgreSQL)

• Continuously learn and adopt new technologies

• Collaborate in brainstorming sessions with senior engineers to solve real problems

Requirements

• Multi-year experience developing with C#, .NET Core, and the broader .NET ecosystem

• Strong familiarity with relational databases such as MS SQL Server, Oracle, and PostgreSQL

• Experience with software architecture, distributed systems, modern CI/CD processes, and containers

• Experience with agile methods (Scrum, Kanban) and willingness to share knowledge

• Strong interest in software development with structured working style and quick comprehension

• Fluent German and English

Benefits

• Flexible working hours and hybrid work option

• 30 days of vacation plus additional vacation days over time

• Secure environment in an owner-managed company with an international team

• Bonus system and additional perks

• Personal and professional development with tailored training choices

• Modern office in Frankfurt with latest technology

• Free company parking with electric charging and option to lease a company bike