java English-speaking jobs in Mainz

Support advanced Metrology and Inspection systems as the primary technical contact for customers. Responsibilities include on-site repair, maintenance, calibration, and resolving complex hardware/software issues. Requires technical expertise in electronics and electro-optics.

Global Category Manager to lead procurement strategy for polyester resins and chemical raw materials. Responsibilities include optimizing the global supplier portfolio, driving sourcing initiatives, and analyzing petrochemical markets. Requires strong experience in resins or related chemical raw materials.

Senior Sales Executive to become a trusted advisor to hotel owners, driving client acquisition and achieving sales KPIs. Responsibilities include full sales cycle management, negotiation, and CRM maintenance. Requires fluent German and professional English.

Own and grow the Regulatory Solutions portfolio, shaping product vision from ideation to market success. Translate regulatory requirements into actionable product priorities while collaborating with cross-functional teams.

Senior B2B Content Strategist develops holistic content plans to drive demand and pipeline. This role owns content across the customer journey, creating assets and campaigns while leveraging SEO and Generative AI to optimize performance using data.

Order Picker/Warehouse Worker packs customer orders efficiently, checks stock and quality, and monitors refrigeration temperatures. Requires minimum age 18, a German work permit, and fluency in English or German.

Project Manager for Warehouse Retrofit and WMS Transformation at a European trading company specializing in chemical products for mobility, construction, and industrial sectors.

Coordinate on-site security operations, including CCTV, access control, and visitor management. Manage security incidents and act as a key contact for international visitors. Requires 5+ years in Corporate Security or similar roles.

Warehouse Worker role at Amazon Fulfillment Center. Duties include receiving, packing orders, loading trucks, and operating PIT equipment. Must lift up to 15kg and adhere to safety standards.

Maintain critical physical infrastructure in data centers, ensuring 100% availability. Responsibilities include operating and maintaining electrical, mechanical, and fire/life safety equipment. Requires technical training and relevant experience.

Student Assistant for HPC Systems Administration supports quantum computing research. Responsibilities include operating and maintaining GPU-based clusters, managing users, implementing security, and automating administrative tasks. Strong Linux skills are required.

Endowed Full Professorship in AI at Zeppelin University. Requires proven AI experience (ML, Deep Learning, Responsible AI) and academic background in related fields. Responsibilities include teaching, supervising research, and industry collaboration.

Director of Engineering leads the global engineering organization across four international sites. Responsibilities include driving innovation, owning the technology and product roadmaps, and delivering NPI on schedule. Requires engineering background and multi-site team leadership experience.

Lead design and development of high-performance Windows Kernel networking drivers, focusing on WFP. Requires 10+ years in Windows kernel development, C/C++, and AI-assisted engineering.

Support SFEG's Compliance and AML framework across Europe. Execute monitoring, review policies, and support regulatory initiatives. Requires a relevant Bachelor's degree and German language skills.

Support the Legal/InfoSec/Data Protection department as Deputy Information Security Officer. Responsibilities include ISMS development, risk management, audits, and security awareness. Requires IT specialist training and knowledge of BSI IT-Grundschutz/ISO 27001.

Experienced Site Construction Supervisor/Engineer needed for BESS Hambach 2 project. Responsibilities include coordinating and supervising construction/installation, ensuring safety, schedule, and quality compliance. Requires engineering background and experience in industrial or renewable energy projects.

PhD student in spatial omics research towards precision medicine. Focus includes translational clinical research, methods development in spatial omics, and bioinformatics analysis of single-cell sequencing data.

Lead Shopper & Customer Marketing, driving channel strategy, RGM, and retail execution. Responsibilities include planogram excellence, POS leadership, and team development. Requires marketing experience and fluency in German and English.

Experienced Installation Coordinator needed for maritime HVAC projects. Responsibilities include coordinating subcontractors, supervising installation works (HVAC, piping, electrical), and managing documentation. Requires technical background and German/English skills.