java English-speaking jobs in Mainz

Provide 1st level IT support to global colleagues, managing client devices and troubleshooting issues. Maintain office infrastructure, including hardware and audio-visual systems. Contribute to IT projects and optimize internal systems.

Drive growth for key retail accounts in Central Europe by managing strategic partnerships. Own the full customer lifecycle, from pipeline building to execution and long-term development. Lead and align cross-functional account teams to deliver on customer priorities.

PhD student position in Structural and Molecular Biology focusing on otoferlin-driven synaptic vesicle fusion at inner hair cell ribbon synapses. The successful candidate will use structural biology techniques like cryo-EM and AI-driven modeling to study otoferlin's interactions with membranes, SNARE proteins, and other fusion machinery.

Senior SAP ABAP Developer (f/m/d) to design and maintain ERP solutions. Develop, test, and document ABAP code while collaborating with Key Users and applying Airbus standards. Analyze, optimize, and contribute to S/4HANA strategies. Mentor junior developers. Requires 10+ years of ABAP experience, strong OO-ABAP knowledge, and fluency in German and English.

Lead the strategy and roadmap for the enterprise eHealth portfolio, including cloud and platform solutions. Manage the full product lifecycle, from concept to launch and end of life.

Develops and implements a global standardized safety framework for overseas warehouses, including security team management, risk inspections, and policy development. Establishes a loss control system encompassing security, inventory management, and supply chain collaboration to prevent theft and optimize operations. Conducts audits, investigates incidents, and implements corrective actions to ensure compliance and mitigate risks. Provides comprehensive safety assurance for global operations, including personnel safety, asset protection, and emergency response.

As a CRM Manager, you will own lead growth, newsletter performance, and strategic projects. You will build and optimize journeys, analyze performance, and collaborate across teams to tailor messaging.

PhD student to study Fe-bearing materials at in-situ conditions relevant for planet formation and evolution. Participate in R&D of X-ray scattering experiments and dynamic compression experiments.

Develop and optimize alignment processes for EUV and DUV lithography objectives to improve imaging performance. Act as a central interface between optical concepts and cleanroom implementation. Coordinate process flows and interfaces with optical design, metrology, production, and customers.

Salesforce Platform Architect (m/f/d) will design, implement, and manage Salesforce solutions for sales, service, and marketing operations. Responsibilities include leading the architecture of Salesforce solutions, collaborating with stakeholders, developing technical designs, and ensuring platform scalability and security.

Working student (up to 20 hours/week) to support the Research & Development department. Must be enrolled in a German university, preferably in a STEM field, with English (B2 minimum) and German language skills.

The Data Center Engineering Operations Technician is responsible for the delivery of best practice systems and problem resolution on all data center electrical and mechanical infrastructure. This role requires a highly driven individual who demonstrates initiative and proactively seeks solutions to complex technical problems. The technician will be accountable for setting and maintaining the highest standards for safety, driving continuous improvement efforts, and ensuring 100% uptime on all customer-supporting infrastructure.

Assists the Design team in creating market-ready products for the adidas brand. Develops creative solutions for individual products and executes design work according to adidas' visual language and guidelines. Requires knowledge of fashion design, strong 3D skills, and proficiency in design software.

Leads Electrical, Instrumentation & Control (E,I&C) discipline for large-scale industrial projects. Builds, develops, and manages a high-performing E,I&C engineering team. Ensures compliance with relevant regulations and standards.

SAP SD Consultant with 8-10 years of experience implementing and configuring SAP SD solutions tailored to German market requirements. Expertise in the Order-to-Cash process and German legal, tax, and reporting compliance regulations.

HR Operations Specialist to manage administrative processes, ensure accurate HR data, and contribute to process development.

Deliver groceries to customers efficiently by e-bike or e-scooter. Meet and exceed delivery targets while providing exceptional customer service. Earn at least €13.90 per hour plus tips.

The Project Manager leads pre-construction phases of hyperscale data center projects across EMEA, ensuring projects are fully defined, cost-planned, and de-risked before construction. Responsibilities include leading project governance, communication, and stakeholder management, defining scope, budget, and program, and coordinating site due diligence, design development, and procurement. The role requires 8+ years of experience in data center, critical infrastructure, or complex real estate development projects, strong understanding of construction across EMEA, and proficiency with scheduling/programming software.

Lead the technical vision and strategy for a fast-scaling deep tech company building safety-critical software. Scale the engineering team, recruit and mentor technical leadership, and translate customer feedback into product direction.

Legal Associate will assist the Director Legal with contract management, legal research, regulatory compliance, corporate governance, risk management, and record keeping.