java English-speaking jobs in Mainz

Working Student (f/m/d) for a plant-based cookie shop in Berlin. Tasks include crafting beverages, baking cookies, engaging with customers, and maintaining shop cleanliness. Requires university enrollment, prior food & beverage or retail experience, fluency in German and English, and a welcoming personality.

As Director of Marketing Data, you will lead the development of a data-driven growth engine for N26, a leading European digital bank. You will architect a high-performing data organization, influence marketing budget allocation, and build proprietary data products to drive marketing efficiency and growth.

Technical Process Owner (m/f/d) will own the operational excellence of a business model cluster, including data flows, incident handling, and process improvements. Requires 4+ years of experience in a tech-business interface role, advanced SQL skills, and experience in incident handling and root cause analysis.

Lead the development and integration of cybersecurity engineering processes for automotive product development, ensuring alignment with industry standards and internal quality frameworks. Collaborate cross-functionally to embed cybersecurity into the product lifecycle, including ASPICE and ISO 26262 activities. Develop and deliver training materials, act as a mentor, and drive continuous improvement initiatives.

Conceptual and basic planning for communications technology in energy generation, gas, and renewable energies. Technical support for Uniper business lines in implementing the decarbonization strategy.

Customer Service Representative required to manage orders, handle customer inquiries, and optimize business processes. Must possess strong communication, numeracy, and IT skills, with a minimum of two years of B2B customer service experience. Fluency in English and German is essential.

German-speaking Sales Account Manager to support clients in managing and optimizing Google Ads campaigns. Provide recommendations to improve advertising performance and develop strong client relationships. Must be fluent in German and English, and willing to relocate to Barcelona.

Leads end-to-end performance transformation programs across German portfolio companies, driving operational turnaround, financial stabilization, and performance acceleration.

Leads and coaches a team of field sales representatives to achieve regional revenue targets through lead conversion and key account development. Executes regional strategy, manages the CRM funnel, and ensures customer experience excellence. Provides market intelligence and leads negotiations for large accounts.

Our offer: Attractive and fair salary conditions Extensive employee benefit programme “Orizon PlusPoints” Training measures suiting your tasks and activities Up to 30 days of annual leave Personal support and qualified advice from the Aviation Unit offices, e. g.

Business Solution Architect Core - Energy Retail will lead architecture discussions for Core Platforms (CRM, Billing) and collaborate with stakeholders to translate business requirements into technical designs.

Develop high performance algorithms for dynamic simulation of large scale power systems. Implement numerical simulation methods and provide expert support to customers.

Investment Banking Associate / Vice President M&A supports execution of mergers and acquisitions and equity capital markets transactions. Responsibilities include preparing marketing documents, financial models, and transaction documents. Requires 5-7 years of relevant investment banking experience, strong M&A execution experience, and fluency in English and German.

Human Factors Engineer to join a team specializing in rotorcraft cockpit design and certification. Analyze operational concepts, integrate human factors principles, and collaborate with multidisciplinary teams.

Senior Product Marketing Manager drives strategy, go-to-market execution, and downstream marketing for mixed-signal sensing technologies. The role requires technical understanding of semiconductor sensors and sensor interfaces, strategic capabilities, and marketing execution skills. Collaborates with global product marketing, product line teams, R&D, sales, and central marketing/communication functions.

Experienced Data Center Technician needed for on-site contract work in Gütersloh, Germany. Perform hardware installations, cabling, server racking, and troubleshooting. Must have 2+ years of data center experience, strong cabling skills, and ability to lift 50+ lbs.

Leads and develops X FAB's photonics activities, focusing on the XPH90 platform, heterogeneous integration, and optical device development. Manages multidisciplinary teams in Erfurt and Corbeil, driving technology roadmap, development processes, and partnerships with Ligentec and RTOs. Evaluates customer requests, defines technical solutions, and participates in customer meetings.

CAE Engineer Westinghouse Electric Company Mannheim Welcome to the future of nuclear energy, where Westinghouse Electric Company is leading the field with expertise and innovation to shape the power of tomorrow. At Westinghouse, innovation is in our DNA. We are creative. We think differently. We reimagine the possible across the nuclear industry every day.

Content Editor for Pluto TV GSA will evaluate, structure, and maintain content inventory. The role involves acting as a point of contact for various teams, creating content promotion strategies, and ensuring accurate metadata and timely publishing of schedules.

Drive Data & AI projects from development to delivery as a trusted advisor. Develop tailored offerings, lead project implementations, and consult clients on organizational aspects of Data & AI transformations.