java English-speaking jobs in Mainz

Supervise international students aged 10-17 from 10pm to 6am at a summer camp in Berlin-Wannsee. Ensure student safety, address issues, and liaise with the Camp Manager. Experience in youth or group work and good English skills are required.

Senior Buyer develops and implements buying strategies, manages vendor relationships, and oversees product selection and inventory management. Requires 5+ years of fashion buying experience, strong analytical skills, and a passion for trends.

Supports Go-To-Market Managers for Originals and Basketball categories in Central Europe. Assists with developing and implementing category plans, collaborating with sales and marketing teams, and analyzing market data.

Drive new customer acquisition for small to mid-sized accounts in Germany. Execute sales plans, manage pipeline, and close sales opportunities. Present Rubrik solutions within complex data center environments. Collaborate with partners to enable rapid growth. Minimum 2+ years full cycle Tech sales experience required.

Experienced QA Manager needed for data centre fit-out projects in Frankfurt. Implement inspection and test plans, manage quality documentation, and ensure compliance across site operations. Utilize Autodesk Construction Cloud (ACC) to maintain quality records and provide reporting.

Conduct research on satellite-to-vehicle communication solutions based on 6G networks. Develop and implement algorithms for handover mechanisms between terrestrial and non-terrestrial networks. Validate concepts through simulations or prototypes. Contribute research to 3GPP studies and working groups.

As AI Strategy & Process Transformation Manager, you will develop and refine the company's AI strategy, identify AI use cases, and transform processes using AI technologies. You will manage the AI portfolio, ensure compliance with regulations, and drive measurable value.

Leads the Data Science function, translating data assets into decisioning solutions for customer and operations intelligence. Drives the development and deployment of AI-powered products to improve customer experience, commercial performance, and operational efficiency. Manages a team of data scientists and partners with stakeholders to deliver measurable business outcomes.

Technical Consultant for ServiceNow CRM solutions (CSM, FSM, SOM). Configure, develop, and implement solutions on the ServiceNow platform. Translate customer requirements into technical solutions.

documenta 16 seeks enthusiastic individuals for various administrative roles in preparation for the 2027 exhibition. Interested candidates should submit a cover letter and resume outlining relevant experience and areas of interest.

This trainee position in Purchasing & Sales Operations offers hands-on experience in international sourcing, order management, and client coordination within the luxury yacht industry.

Supervises, implements, and improves pre-delivery inspection processes for vehicles across Europe. Monitors inspection processes, coordinates with logistics providers, and reports on PDI results. Develops and improves PDI processes, identifies quality concerns, and collaborates with teams to resolve issues.

Experienced Project Director to lead and grow a German business within an international project and cost consultancy. Responsibilities include business development, client relationship management, project delivery, and team leadership. Requires a degree in a relevant field, significant project experience in Germany, and fluency in German and English.

Conduct independent and collaborative research on the transformation of human rights, norms, institutions, and/or practices. PhD in human rights research required, obtained within the last 3 years. Fluency in English.

Serve as the technical point of contact for international sales subsidiaries and business partners. Provide technical support for tools and collaborate on product-related matters.

Lead a large international procurement and supply chain organization across EMEA, AMER, and APAC. Manage a complex global supply chain undergoing transformation and international scaling. Responsibilities include global supply chain management, procurement, logistics, and operational excellence.

Conduct research on new technologies in African business, market development, and go-to-market strategies. Design, analyze data, publish findings, and present at conferences.

The ifo Institute seeks a Postdoctoral Researcher / Economist (f/m/d) to join its Center for the Economics of Education. The three-year position, with possible extension, involves research on the economics of education, project management, mentoring doctoral candidates, and publishing research findings.

Trainee supports the Original Production team in managing and executing local productions. Assists producers in development and production areas, manages project information distribution, and gains insights into press/PR, marketing, dubbing, and streaming.

Produce video content, including brand films, product videos, social media content, and presentations. Manage social media channels and ensure consistent media distribution.