java English-speaking jobs in Mainz

Proactive Team Assistant to support global Expert Services. Responsibilities include coordinating experts, managing documents, assisting with recruitment, and preparing proposal components. Requires proficiency in English and French.

Support the Marketing & E-Commerce team as a Working Student, focusing on Social Media, Influencer Marketing, and Customer Experience. Responsibilities include trend research, influencer outreach, and customer feedback analysis.

Experienced Data Scientist needed for long-term AI programs. Develop ML solutions using Python, perform data analysis, and build models. Requires 4-10 years experience, strong Python/SQL skills, and fluent German.

Operations Excellence Engineer to deploy a new group manufacturing system across 13 German sites. This role involves leading Lean transformation, coaching teams, and driving continuous improvement across the manufacturing network. Requires engineering degree and fluency in English and German.

Amazon Shipping/Warehouse Associate loads conveyor belts, transports, and stages deliveries. Duties include sorting parcels, lifting up to 15kg, and using scanners or forklifts. Must be 18+, proficient in German, English, or Arabic.

Senior Recruiter to lead end-to-end recruitment for a global pharmaceutical manufacturer. Manage full-cycle hiring across diverse roles, partnering with stakeholders. Requires significant recruitment experience and fluency in German and English.

This role requires a product-minded operator to turn complex technology and customer needs into clear plans and shipped outcomes. Responsibilities include driving execution across cross-functional teams and structuring ambiguous initiatives.

Embedded Software Engineer roles for an autonomous driving business building the AUTOSAR platform. Responsibilities include developing AUTOSAR modules, diagnostics, and debugging. Requires 4+ years in automotive embedded software with strong C skills.

Senior Vice President, Custody Tax Product Manager defines and executes the product roadmap for tax services for cross-border institutional investors. Requires expertise in German tax law and global tax regulations.

RONIN International seeks professionals from advertising and marketing agencies to participate in a paid consultancy study. Candidates should be familiar with paid media, programmatic buying, and managing DSPs. The session is an online survey lasting about 20 minutes.

Experienced Oracle Fusion Cloud Functional Solution Architect needed to lead SCM solution design across Manufacturing, Planning, Inventory, WMS, and Costing. Requires 8+ years in Oracle Applications, including 5+ in Fusion Cloud.

Site Engineer to support civil, structural, and architectural works on a major data centre project. Responsibilities include coordinating site activities, managing subcontractors, and ensuring quality and safety compliance. Requires a degree in Civil Engineering and 3-5 years of relevant experience.

Experienced Trade Compliance & Customs Manager needed to lead international trade operations and build the compliance framework for a transforming automotive manufacturer. Requires knowledge of EU and German export control regulations.

Experienced Legal Counsel needed to provide business-oriented legal advice for EMEA operations. Responsibilities include drafting contracts, managing disputes, and supporting compliance. Requires a German-admitted lawyer with 7+ years of experience.

Datacenter Technician role involving adherence to security and safety best practices. Responsibilities include installing and testing copper/fiber optic cabling, basic network device troubleshooting, and inventory management. High school degree and cabling experience are required.

Lead CQV activities for GMP facility systems, utilities, and controlled environments. Define strategy, oversee IV/OV/PQ, and ensure compliance for manufacturing operations. Requires engineering degree and 5+ years in GMP facility qualification.

Experienced Commercial Project Manager needed for large-scale international EPC projects (€100m+). Focus includes commercial oversight, claims management, contract handling, and financial controlling. Requires deep EPC contract expertise and 5+ years of project management experience.

Support technical documentation and quality assurance for CE marking under EU MDR. Review development documentation, establish traceability, and ensure records are complete for regulatory submission.

Lead FutureLog's ~30-person engineering organization, setting technical direction and driving AI adoption. Guide platform evolution, manage security, and represent Engineering to enterprise customers.

Linguistics Expert needed for AI training and content writing. This role involves curating, annotating, and evaluating linguistic data to shape LLMs and NLP systems. Responsibilities include creating grammar guides, resolving ambiguity, and ensuring model output quality.