About The Company

Since over 15 years, marketwing GmbH has established itself as a leading provider of direct marketing services, dedicated to supporting non-profit and fundraising organizations. With a team of approximately 100 employees, the company specializes in enhancing communication strategies and fundraising efforts, enabling non-profit entities to focus on their core mission. Marketwing's commitment to quality and innovation has positioned it as a trusted partner in the non-profit sector, consistently delivering tailored solutions that drive engagement and success.

About The Role

We are seeking a skilled Softwareentwickler C# / .NET 10 / ASP.NET Core (m/w/d) to join our dynamic team in Garbsen. In this role, you will be instrumental in developing and maintaining a comprehensive web application tailored for organizations in the fundraising and non-profit sectors. Your work will directly contribute to streamlining processes related to donor management, campaigns, and data integration, supporting our clients' missions more effectively.

As part of our development team, you will work on a modern architecture utilizing ASP.NET Core and .NET 10, continuously enhancing system functionality through new features and integrations. Your responsibilities will span front-end, back-end, database, and API development, offering a diverse and engaging technical environment. This position provides an excellent opportunity to apply your skills in a meaningful context while working within a collaborative and innovative setting.

Qualifications

While formal education is valued, practical experience and skills are paramount. Candidates with an Ausbildung zum Fachinformatiker, a degree in Informatik, or those transitioning from related fields with relevant experience are encouraged to apply. Essential technical skills include:

• Proficiency in C# and .NET, with hands-on experience in ASP.NET Core
• Experience working with relational databases, particularly Microsoft SQL Server and T-SQL
• Knowledge of MVC pattern and development of data-driven web applications
• Familiarity with frontend technologies such as HTML5, CSS3, JavaScript, and TypeScript
• Experience using Git and modern version control systems
• Excellent German language skills and good English proficiency
  
  

Additional advantageous skills include experience with Entity Framework Core, REST APIs, and modernization of existing applications using ASP.NET MVC or the .NET Framework.

Responsibilities

• Develop and implement modern features for both frontend and backend components using C# and .NET 10 / ASP.NET Core
• Design and optimize database structures and manage data-intensive processes on Microsoft SQL Server
• Create, connect, and maintain web APIs and external interfaces to ensure seamless data exchange
• Enhance and integrate existing application components to improve system performance and usability
• Translate client requirements into technical solutions, overseeing projects from conception to deployment
• Conduct testing, documentation, and ongoing optimization of code to maintain high quality standards
  
  

Benefits

• Secure employment with a full-time (38 hours/week) or part-time contract, offering long-term stability and growth opportunities
• Flexible working hours and options for remote work upon agreement, supporting work-life balance
• 30 days of annual leave, with additional special leave provisions for personal needs
• State-of-the-art development environment utilizing Rider, GitHub, Codex, and automated build and quality assurance processes
• Family-friendly team culture with flat hierarchies, mutual respect, and a relaxed atmosphere
• Excellent accessibility via free parking or public transportation options
• Health and mobility benefits, including Hansefit memberships, bike leasing, and office snacks and beverages
• Additional social benefits such as company pension schemes, asset-building programs, and other perks
• Team spirit fostered through regular team lunches and company events to promote camaraderie
  
  

Equal Opportunity

Marketwing GmbH is committed to fostering an inclusive and diverse work environment. We welcome applications from individuals of all backgrounds, regardless of gender, age, ethnicity, or disability. Our goal is to provide equal employment opportunities and ensure that every team member feels valued and empowered to contribute to our shared success.