.NET Developer

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.

Work arrangement
Yes