Sumex AG is seeking an experienced Senior Software Engineer to join our development team in Zurich on a hybrid work arrangement. You will design and implement sophisticated Java applications and systems as part of cross-functional teams, collaborate closely with product management on analysis, design and continuous optimization, and contribute throughout the full software lifecycle—from requirements analysis and design to implementation, testing and maintenance. You will support our customers and integration teams with new requirements, incidents and service requests, and create and maintain technical documentation. You will work with interdisciplinary teams to ensure stable and high-performing software integrations, conduct code reviews and provide constructive feedback to maintain high code quality. You are proficient with AI-supported development tools and embrace technologies such as Claude Code or AI-based code reviews as part of the software development process. You will apply agile methods and modern tools to enable efficient and structured project execution.

Sumex AG is seeking an experienced Senior Software Engineer to join our development team in Zurich on a hybrid work arrangement. You will design and implement sophisticated Java applications and systems as part of cross-functional teams, collaborate closely with product management on analysis, design and continuous optimization, and contribute throughout the full software lifecycle—from requirements analysis and design to implementation, testing and maintenance. You will support our customers and integration teams with new requirements, incidents and service requests, and create and maintain technical documentation. You will work with interdisciplinary teams to ensure stable and high-performing software integrations, conduct code reviews and provide constructive feedback to maintain high code quality. You are proficient with AI-supported development tools and embrace technologies such as Claude Code or AI-based code reviews as part of the software development process. You will apply agile methods and modern tools to enable efficient and structured project execution.