About the team:We are looking for a Senior Salesforce Developer (d/f/m) for our Business Systems & Integration team. If you are a self-starter with a passion for independent development, a problem solver and have a keen eye for maintainable and testable code then you will love working with us.Your role:As part of our team you will be involved in all aspects of our Agile development, from refining requirements, designing and implementing solutions to supporting our customers within mobile. de and Adevinta.Configure, administer and develop existing Salesforce Sales and Service orgs accordingly to business requirementsWhere no standard components are available, design and build high-performance, reusable, and reliable code for our Salesforce applicationsManage the overall design, layout and build of the Salesforce.com applications and all integrated business systems, providing day to day, administrative, project and operational support to end users through multiple teams, business units and locationsTake ownership of project work and develop relationships with internal customers and usersIndependently plan, design, code, debug and test major features, ensuring bugs are identified early and requirements are deliveredDeliver high quality by writing test classes for your codeIdentify technical areas for improvement and make business cases for improvementsYour profile:At least 3-4 years of experiences in Salesforce Sales or Service CloudDeep knowledge of Salesforce architecture, including configuration of users, permissions, objects, fields, workflows, flows, formulas etc.Experience with APEX, Lightning Components und Visualforce and/or JavascriptComfortable providing and receiving constructive feedback, particularly while participating in code reviewsBe a technical sparring partner for the organisation to help the business build efficient and effective requirementsGood level of German or willing to learn, good level of English language skills