java English-speaking jobs in Mainz

The Commodity Manager - Contract Manufacturer HLA develops and implements commodity strategies to ensure the availability of high-quality commodities at the best prices. They monitor market trends, assess risk factors, and identify opportunities for cost reduction or improvement in supply chain efficiency.

Designs, executes, and evaluates dynamic data acquisition programs, analyzes pressure, temperature, rate, and production data, and builds, maintains, and validates integrated dynamic reservoir simulation models. Performs history matching, predictive forecasting, and scenario modeling to support field development strategies. Supports well delivery through pore pressure prediction and dynamic data analysis. Assesses development options against technical, economic, and subsurface risk criteria. Ensures high-quality data management and maintains data integrity.

Leads R&D of fully automatic coffee machines, overseeing product development and resolving technical issues. Researches and develops new technologies and platforms for coffee machines.

PhD research on neural 3D scene representations for automotive cabin perception. Focus on adapting techniques like neural radiance fields and implicit occupancy models to in-cabin scenarios. Goal is to reliably reconstruct occupants from limited camera viewpoints and create a unified representation of interior and exterior scenes.

Senior System Administrator will act as onsite technical lead for the Berlin office, providing 2nd-level support, managing Microsoft 365, server infrastructure, and leading IT projects.

Stress Engineer needed for a growing aviation company. Analyze and report on aircraft stress, collaborate with design teams, and provide technical direction to suppliers. Requires a Master's degree in aeronautical/mechanical engineering, 5+ years experience, and expertise in stress analysis techniques, including finite element analysis.

Establish an independent research program in Computational RNA Biology. Develop theoretical, computational, and AI-based approaches to understand RNA function and regulation.

Certified Industrial Electrician (m/f/d) for international assignment. Installation, maintenance, and repair of electrical systems and industrial equipment in a food production environment. Troubleshooting, root cause analysis, and support of batch-based production processes. Documentation of maintenance activities and collaboration with international teams.

Richter BioLogics GmbH, a subsidiary of Gedeon Richter AG, is a dynamic, internationally established biotechnology company that develops and produces biopharmaceutical active pharmaceutical ingredients under GMP conditions with 4000 employees at its facilities in Hamburg and Bovenau.

Senior Project Development Manager will lead complex energy infrastructure projects from ideation to Final Investment Decision (FID). Experience in renewable energy, energy infrastructure, or the SAF/P2L/Hydrogen/Clean Fuels/P2X economy is required.

Lead and develop a high-performing engineering team across all seniority levels. Improve delivery, processes, and AI adoption. Provide hands-on guidance and eliminate silos between Product and Engineering.

Technical Support Specialist needed for high-end equipment R&D, precision machinery processing, or transmission system design. Requires 10+ years of experience and expertise in machine tool structure design, mechatronic integration, and precision shaft processing. PhD preferred.

Volunteer Business Coordinators are needed to expand INFOROC's international business network by connecting with manufacturers, importers, and industry leaders in Germany.

Lead and scale a platform-driven organization covering viral vector process development and GMP manufacturing. Oversee the full lifecycle of client programs, ensuring reliable, scalable, and high-quality GMP execution.

Senior Electronics Design Engineer will take technical ownership of the full electronics development lifecycle for subsea instrumentation and communication systems. Responsibilities include designing analogue and digital electronics, developing schematics and PCB layouts, and collaborating with engineering teams. Requires a degree in Electrical or Electronics Engineering and several years of experience in embedded electronics development.

Nordran seeks a Head of R&D to drive performance and reliability of a liquid cooling chemistry sensing platform for hyperscale AI data centers. Responsibilities include designing and executing experiments, identifying performance bottlenecks, and leading a team to achieve commercial-grade robustness.

Build and maintain high-performance C++ software components with a focus on quality and performance. Analyze systems, write automated tests, and contribute to technical discussions.

Responsible for EMEA-wide sales of chemical products/intermediates, including isoprene and butadiene derivatives. Develop and implement sales promotion measures, manage customer relationships, and introduce new products. Requires a Master's degree, experience in specialty chemical sales, and strong communication and analytical skills. Fluency in French and English is essential.

Shape global reward systems and drive talent retention as an Expert Compensation & Benefits. Support and drive global C&B initiatives, focusing on variable remuneration systems and incentive design. Lead or participate in regional and global C&B projects, acting as a key expert for internal stakeholders. Manage and steer annual bonus and salary review cycles. Further develop the global benefit portfolio to increase employer attractiveness and employee motivation. Serve as a high-level advisor for HR Business Partners and management on all compensation-related matters.

Freelance Transcreators & Creative Marketing Translators (Vietnamese into English) are needed to adapt marketing and entertainment content for global campaigns. Must have 3+ years of experience in marketing translation and creative transcreation, a Bachelor's degree in a related field, and native-level fluency in English (US) with professional-grade Vietnamese comprehension.