Software Developer
EU
October 18, 2026 at 10:37 AM
✨ AI summary
Location
- Germany
Programming Languages
- C#
- JavaScript
- TypeScript
Frameworks
- ASP.NET Core
- MVC
- Entity Framework Core
- ASP.NET MVC/.NET Framework
Databases
- Microsoft SQL Server
About The Company
Since over 15 years, marketwing GmbH has established itself as a leading provider of direct marketing services, primarily focusing on supporting non-profit and fundraising organizations. With a dedicated team of approximately 100 employees, the company specializes in enhancing communication and fundraising efforts for non-profit entities, enabling them to concentrate on their core mission. Marketwing GmbH prides itself on delivering tailored solutions that foster meaningful engagement between organizations and their supporters, leveraging innovative marketing strategies and technology-driven approaches.
Headquartered in Niedersachsen, the company has built a reputation for reliability, quality, and a client-centric approach. Its commitment to social impact and excellence has made it a trusted partner for non-profit organizations seeking to optimize their outreach and fundraising activities.
About The Role
We are seeking a skilled and motivated Softwareentwickler C# / .NET 10 / ASP.NET Core (m/w/d) to join our dynamic development team in Garbsen. In this role, you will be responsible for designing, developing, and maintaining our extensive web applications tailored for organizations in the fundraising and non-profit sectors. Your work will directly contribute to empowering non-profit organizations by providing them with robust tools to manage donor relations, campaigns, and data processing efficiently.
The ideal candidate will be involved in all phases of software development, including feature implementation, database design, API integration, and system optimization. You will work closely with cross-functional teams to ensure the delivery of high-quality, scalable, and sustainable software solutions that support our clients' missions.
This position offers an excellent opportunity to work on meaningful projects within a supportive environment that values innovation, quality, and team collaboration. You will have the chance to shape the future of our software platform and make a tangible difference in the non-profit sector.
Qualifications
While formal education such as an apprenticeship or degree in computer science is advantageous, we prioritize practical skills and experience. Candidates with diverse backgrounds, including career changers with relevant experience, are encouraged to apply. Essential qualifications include:
Responsibilities
marketwing GmbH is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We welcome applications from individuals of all backgrounds, regardless of gender, age, ethnicity, disability, or any other characteristic protected by law. Our goal is to foster a workplace where everyone feels valued, respected, and empowered to contribute to our collective success.
Since over 15 years, marketwing GmbH has established itself as a leading provider of direct marketing services, primarily focusing on supporting non-profit and fundraising organizations. With a dedicated team of approximately 100 employees, the company specializes in enhancing communication and fundraising efforts for non-profit entities, enabling them to concentrate on their core mission. Marketwing GmbH prides itself on delivering tailored solutions that foster meaningful engagement between organizations and their supporters, leveraging innovative marketing strategies and technology-driven approaches.
Headquartered in Niedersachsen, the company has built a reputation for reliability, quality, and a client-centric approach. Its commitment to social impact and excellence has made it a trusted partner for non-profit organizations seeking to optimize their outreach and fundraising activities.
About The Role
We are seeking a skilled and motivated Softwareentwickler C# / .NET 10 / ASP.NET Core (m/w/d) to join our dynamic development team in Garbsen. In this role, you will be responsible for designing, developing, and maintaining our extensive web applications tailored for organizations in the fundraising and non-profit sectors. Your work will directly contribute to empowering non-profit organizations by providing them with robust tools to manage donor relations, campaigns, and data processing efficiently.
The ideal candidate will be involved in all phases of software development, including feature implementation, database design, API integration, and system optimization. You will work closely with cross-functional teams to ensure the delivery of high-quality, scalable, and sustainable software solutions that support our clients' missions.
This position offers an excellent opportunity to work on meaningful projects within a supportive environment that values innovation, quality, and team collaboration. You will have the chance to shape the future of our software platform and make a tangible difference in the non-profit sector.
Qualifications
While formal education such as an apprenticeship or degree in computer science is advantageous, we prioritize practical skills and experience. Candidates with diverse backgrounds, including career changers with relevant experience, are encouraged to apply. Essential qualifications include:
- Proficiency in C# and .NET, with hands-on experience in ASP.NET Core development.
- Strong understanding of relational databases, particularly Microsoft SQL Server and T-SQL.
- Experience with the MVC pattern and developing data-driven web applications.
- Knowledge of frontend technologies such as HTML5, CSS3, JavaScript, and TypeScript.
- Familiarity with version control systems, especially Git.
- Excellent communication skills in German and good proficiency in English.
Responsibilities
- Develop new features and functionalities for both frontend and backend components using C# and .NET 10 / ASP.NET Core.
- Design, optimize, and maintain database structures and processes utilizing Microsoft SQL Server.
- Create, integrate, and maintain web APIs and external interfaces to ensure seamless connectivity with third-party systems.
- Enhance and evolve existing application components to improve performance, usability, and security.
- Translate client requirements into technical solutions, managing projects from concept to deployment.
- Conduct testing, documentation, and ongoing optimization of code to ensure high quality and maintainability.
- Secure employment in a full-time (38 hours/week) or part-time position, with long-term prospects.
- Flexible working hours designed to balance professional and personal life, including options for remote work upon agreement.
- Generous leave policy with 30 days of vacation and special leave arrangements for personal needs.
- Modern development environment utilizing Rider, GitHub, Codex, and automated build and quality assurance processes.
- Friendly, family-like team atmosphere with flat hierarchies and a culture of mutual respect.
- Convenient accessibility with free parking options or proximity to public transportation.
- Health and mobility benefits, including Hansefit memberships, bike leasing, and office snacks and beverages.
- Additional social benefits such as company pension schemes, asset-building schemes, and other perks.
- Engaging team activities, including weekly team lunches and regular company events fostering team spirit.
marketwing GmbH is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We welcome applications from individuals of all backgrounds, regardless of gender, age, ethnicity, disability, or any other characteristic protected by law. Our goal is to foster a workplace where everyone feels valued, respected, and empowered to contribute to our collective success.