java English-speaking jobs in Mainz

Document Controller role supporting data centre projects. Responsibilities include project documentation, reporting, scheduling, and stakeholder coordination. Requires fluent German and English, strong organization, and experience in project administration.

Lead a cross-border HR team through business transformation, leveraging technology to enhance the employee experience across the lifecycle. Responsibilities include process improvement, managing external payroll, and optimizing HR systems. Fluency in English and German is required.

Junior Research Fellowship available for students/graduates in any discipline. Develop research, analytical writing, and policy drafting skills under guidance. Requires good written English and ability to work independently.

Senior Vendor Manager to contribute to global strategic vendor management and oversee vendor developments across the full lifecycle. Requires a Master's degree and at least 7 years of relevant experience.

Principal Statistical Programmer develops custom code using SAS to generate tables, listings, and graphs. This role provides technical leadership, directs programming activities, and ensures data integrity. Advanced degree and extensive statistical programming experience are required.

PhD position focused on data-driven development of stable wide-bandgap perovskite subcells for tandem photovoltaics. Tasks include establishing reproducible baselines, using high-throughput methods, and applying machine learning for optimization.

Support the C&I ESS Sales team by coordinating projects, preparing sales materials, and conducting market research. This role requires pursuing a degree in a relevant field and strong communication skills.

Lagerist role involving receiving, preparing, building, wrapping, sorting, and transporting inventory. Duties require lifting up to 15kg and operating various equipment. Candidates must be 18+ and proficient in German and/or English.

A400M Aircraft Mechanic needed to perform scheduled and unscheduled assembly, maintenance, and structural repairs on the A400M weapon system. Requires metalworking training, extensive aircraft experience, and fluent German with good technical English.

Sales Director Europe for Meat drives growth for RPC solutions in the European meat market. Requires extensive commercial leadership in packaging, logistics, or FMCG, with expertise in the meat industry and circular solutions.

Experienced SAP S/4HANA consultant specializing in Production Planning (PP) needed. Design, implement, and customize production processes, ensuring seamless integration across modules. Support Fiori app and mobile solution implementation. Collaborate with cross-functional teams to optimize production environments.

Support the development and implementation of industrial communication and hazard detection solutions. Work in an interdisciplinary team on topics like AI, PLC programming, and computer vision.

Support medium voltage component development and lifecycle management, focusing on wind turbine switchgears. This role involves product ownership, technical evaluation, testing, and cross-functional collaboration.

Design, build, and maintain scalable backend services in Go to support business products. Collaborate with product managers and cross-functional teams to deliver solutions. Write clean, maintainable code and ensure solutions are robust and observable in production environments.

Senior Verification Engineer will join a cross-functional agile team to develop a connectivity platform. Responsibilities include planning, creating, and executing test cases, collaborating with developers to fix bugs, and contributing to process improvements. Experience in software verification, test automation, and distributed systems is required.

Evaluate search results and AI-generated content for quality and relevance. Conduct research to support rating decisions and document guideline gaps. Requires excellent German and English communication skills.

Lead hardware failure analysis at system, board, and component levels to find root causes of quality and reliability issues. Execute lab testing and analyze customer/manufacturing quality problems. Requires a degree in Electrical Engineering or equivalent experience.

Lead a diverse engineering team on major Power Plant and Hydrogen business initiatives. Manage technical matters, risks, and compliance for EPC projects globally. Requires a relevant degree and 10 years of industry experience.

This consultancy prioritizes conservation activities for Sharks MOU Annex 1 shark and ray species in Oceania. The role requires developing science-based recommendations for regional conservation planning.

Head of Capital Formation / Partner to build and lead investor relations and fundraising for a London-headquartered private equity firm. Requires 15+ years in institutional fundraising with established LP relationships.