java English-speaking jobs in Mainz

Project Engineer to define and implement cross-site technical standards for automated container handling systems. Responsible for technical design, integration, testing, and commissioning. Requires experience in automation, control systems, and project environments.

Senior Product Manager to shape and develop product activities for railway signaling. Define product strategy, manage the lifecycle, and act as the interface between market needs, engineering, and business objectives. Requires 7+ years of relevant experience.

Senior Manager role in clean energy advisory. Build integrated project finance models and conduct commercial/technical due diligence for developers and investors. Requires 5+ years in clean energy valuations or transaction advisory. Fluency in German and English is required.

Creative Intern / Working Student to support a Berlin-based creative platform. Assist with creative research, content ideas, social media, project preparation, and coordination.

Senior Product Analyst joins a global financial services organization to support fund services and investment operations platforms. This role involves gathering requirements, delivering product enhancements, and driving transformation across complex financial services.

The Manager, Government Affairs Europe will develop and implement advocacy strategies to advance policies that recognize the unique nature of plasma-derived medicinal products. This role will involve collaborating with policymakers and stakeholders to improve patient access to therapies, strengthen supply continuity, and encourage sustainable plasma collection.

The HR Lead for Germany serves as the primary HR representative, driving people strategy, talent management, and compliance with German labor regulations. Requires 8-12 years of experience and fluent German and English.

Office Manager to oversee daily administration and office management. Responsibilities include managing vendors, ensuring safety compliance, and coordinating office operations. Requires C1 English and C2 German proficiency.

Senior Product & UI/UX Designer to lead product vision and user experience at an industrial tech startup. Translate complex industrial processes into intuitive digital workflows, owning the full design lifecycle. Requires 5+ years designing digital products.

Lead and mentor engineers on infrastructure and operational best practices. Own GCP infrastructure-as-code, CI/CD pipelines, and GitOps delivery model. Drive observability and reliability practices. Manage infrastructure complexity and champion AI-augmented engineering.

Data Scientist needed for sports performance research. Responsibilities include designing testing programs, collecting athlete data, and analyzing performance data using Python, MATLAB, and Excel. Requires experience in sports science or biomechanics.

Chery Automobile seeks a CMF Designer to develop color and material themes for new automotive products. The role involves collaborating with designers, monitoring trends, and presenting work using Adobe Suite, VRED, and PowerPoint. Experience in automotive design, model building, and supplier management is required. Fluency in English is mandatory, Chinese is a plus.

Lead operational excellence and lean transformation as VP, EBS, reporting to the CEO. Drive continuous improvement, optimize global manufacturing, and build a "one team" culture using EBS fundamentals.

Coordinate complex proposal, bid, and tender processes for an international company. Structure, edit, and consolidate multidisciplinary input into professional, client-focused submissions while managing timelines and documentation.

Support PROXITY's sustainability strategy across its European logistics real estate portfolio. Responsibilities include ESG reporting, decarbonization initiatives, and sustainability due diligence. Requires a relevant degree and 2-3 years of experience.

Operations Manager to oversee day-to-day operations at an OSM/prefabrication facility. Responsibilities include production scheduling, team leadership, quality control, and inventory management. Requires 5-7 years in similar roles and a third-level engineering qualification.

Site Manager for utility-scale BESS projects, leading on-site delivery from equipment receipt to handover. Responsibilities include managing safety, schedule, quality, and coordinating all site interfaces. Requires a relevant engineering degree and 5+ years in power/BESS projects.

Inside Sales & Contact Center Agent for a Japanese airline. Provide customer service and sales support via phone and email, managing reservations and bookings. Requires fluent German and business-level English.

Senior IT Consultant specializing in AI Solution Architecture. Develop business and technical target architectures, focusing on AI integration, LLMs, and Generative AI within enterprise applications. Requires 5+ years designing AI solutions in SDLC.

Robotics Associate maintains inventory accuracy and optimizes pick operations at the QA station. Responsibilities include stowing, managing records, auditing bins, and analyzing pick rejections. Requires attention to detail and basic computer skills.