An international experience marketing company in Basel is looking for a Senior Software Developer proficient in C#/.NET. The ideal candidate will design and maintain software solutions, build APIs, and troubleshoot existing applications. This role offers a flexible working environment and competitive social benefits for a high-tech company. Applicants should have 7+ years of experience and strong proficiency in cloud services and SQL databases. Fluent English and intermediate German are required. #J-18808-Ljbffr