java English-speaking jobs in Mainz

Activity Leaders deliver engaging activities and excursions to international students, ensuring a meaningful and adventurous camp experience. Must have experience working with children, some German proficiency (B1-B2 minimum), fluency in English, and high energy.

Senior AI Engineer will design and build end-to-end AI/ML solutions for enterprise clients. Experience with cloud platforms (AWS, Azure, or GCP), Databricks, Snowflake, and AI architecture is required.

As a Principal within Analytics & Consulting, you will lead client engagements, develop new business opportunities, and provide operational leadership. You will act as the principal owner of client engagements, ensuring client satisfaction and delivering high-quality strategies. You will also contribute to thought leadership and firm building initiatives.

Provide audit and non-audit services to clients executing capital markets transactions, including IPOs, SOX compliance, and accounting standard transitions. Deliver technical accounting and US financial reporting advice, support audit teams, and provide training on audit standards and methodologies.

Import Administrator needed for sea- and airfreight handling in the European market. Collaborate with shipping companies, agents, and internal departments. Manage customs clearance, tariff classifications, and tax assessments.

UX/UI Design Intern will contribute to the company's Design System in Figma, implement a dark theme, ensure UI responsiveness, and improve accessibility.

Lead the technical performance strategy for DHL's European aircraft fleet, ensuring safety, reliability, and operational efficiency. Manage maintenance planning, supplier relationships, and budget oversight. Drive performance improvement initiatives and ensure compliance with EASA regulations.

Scientist to support user experiments, conduct research, and develop instruments at the P21.2 beamline. Requires a PhD in materials science, physics, or related field, expertise in materials characterization using synchrotron radiation, and experience with small- and/or wide-angle scattering and imaging. Fluency in English is required.

Provides comprehensive legal support for global M&A transactions, acting as the single legal point of contact for top management and stakeholders. Conducts legal analysis, negotiation, and presentation of legal issues and risks throughout all phases of mergers, acquisitions, and divestments. Develops action alternatives and decision papers for DHL Group's highest management levels. Collaborates with internal and external stakeholders, including Global Competition, Corporate Development, and external law firms. Drafts and negotiates transaction documentation and supports signing and closing phases. Analyzes, implements, and optimizes legal processes and policies across the Group.

Leads and manages commissioning and testing activities for photovoltaic (PV) projects, including grid connection and Battery Energy Storage Systems (BESS). Plans, coordinates, and documents the commissioning process, collaborating with subcontractors and stakeholders. Acts as the Responsible Electrical Person, ensuring electrical safety and compliance with standards.

Design, develop, and commission ultra-precision mechanical systems for the XFELO project. Perform CAD design, structural and thermal analysis, and component procurement. Analyze experimental data and contribute to publications.

Design performance banners for social media campaigns, adapting them to various formats and styles. Collaborate with creative director, art director, and social media manager.

Account Executives drive incremental add-on business within Workday's existing customer base. Responsibilities include developing and maintaining customer relationships, performing account planning, and coordinating with internal teams. Requires 4+ years of experience selling SaaS/Cloud solutions to C-levels, negotiating deals, and building relationships for add-on business. Excellent German and English communication skills are essential.

Experienced SAP IS-U Waste Management Technical Consultant needed for a 6+ month project starting ASAP. Must have master proficiency in SAP for Utilities Waste & Recycling and expertise in SAP S/4HANA, SAP for Utilities, and SAP for Utilities Business Process Exception Management.

Beauty Advisor needed for part-time position at Sephora Oberhausen. Responsibilities include customer service, stock management, visual merchandising, and supporting beauty classes. Experience in retail, customer service, and the beauty industry is preferred.

Tier 1: Other UNDP/UNCDF/UNV staff holding permanent (PA) and fixed-term (FTA) appointments Tier 2: UNDP/UNCDF/UNV staff holding temporary appointments (TA), personnel on regular PSA contracts, and Expert and Specialist UN Volunteers Tier 3 or no tier indicated: All other contract types from UNDP/UNCDF/UNV and other agencies, and other external candidates Please make note of the Tier(s) indicated

Senior Newsletter Manager responsible for B2C and B2B email marketing, Privilege Club member acquisition, and CRM project management. Develops innovative communication strategies, manages email automation tools, and analyzes market trends. Requires 5+ years of experience in CRM, email marketing, or loyalty, and proficiency in CRM and marketing automation systems.

Student assistant position supporting research on the simulative design and manufacture of PVD-coated cutting tools. Responsibilities include experimental investigations, data analysis, numerical simulations, and administrative tasks.

Job Summary The Life Science Leader, CEMENA is a senior leadership role responsible for driving the strategic development and profitable growth of Chubb's Life Science practice across the Continental Europe, Middle East and North Africa region.

Internship in Design supporting the BOSS WW team. Tasks include researching imagery, creating inspiration boards, assisting with technical sketches, and coordinating sample shipments.