5 English-speaking jobs in Mainz

Scientific project assistant to support research on new treatments for drug-resistant and metastatic lung cancers. Experience in chemical synthesis, compound analysis (NMR, HRMS, HPLC, LC-MS, UV-vis), and reaction kinetics measurements required. Programming skills in Python and R with experience in statistical data analysis are a plus.

Lead the affiliate-wide Customer Excellence agenda, driving commercial performance, customer experience, and operational effectiveness. Partner with the General Manager and Affiliate Management Team to turn priorities into action and lead affiliate business planning and performance management. Drive transformation across Commercial, Medical, Market Access, and Business Technology Services.

As a Sales Specialist – Battery Trading, you will source high-quality, second-life-ready batteries from scrap yards, workshops, and other non-traditional sources. You will negotiate contracts, perform on-site assessments, and build a supplier intelligence database. You will also onboard vehicle repair workshops as buyers for these batteries.

Processes customer orders, returns, and account inquiries via email, phone, and web chat. Provides quotations for standard optics and manages open sales orders. Requires experience in customer service, proficiency in MS Office, and fluency in English. Additional language skills are beneficial.

J&T Express seeks experienced Operations Supervisors to lead and develop teams in Frankfurt, Düsseldorf, Hamburg, and Berlin. Responsibilities include overseeing daily sorting center operations, monitoring KPIs, driving continuous improvement, and ensuring compliance.