java English-speaking jobs in Mainz

Regional Marketing Manager to drive growth for DIY Home Energy Storage across DACH. Develop and execute regional marketing strategies for solar and storage products, supporting launches and commercial growth. Requires marketing experience and fluency in German.

Project Manager to manage day-to-day delivery of a large data center construction project. This role coordinates construction, design, procurement, QA/QC, and commissioning activities. Requires a relevant engineering degree and 10+ years in large construction projects.

Join our team and help deliver smiles! Assist with unloading, lifting, transporting, scanning, and sorting packages. Must be able to follow safety guidelines, stand and walk for extended periods, and lift up to 15kg. Basic German or English language skills required.

Health & Safety Advisor needed to support H&S policies, conduct inspections, and manage site documentation. Requires a recognized safety qualification and 2+ years of construction safety experience.

Lead external communications for an international technology company, shaping its representation in business, tech, and policy. Develop strategy, manage media relations, and lead a PR team using AI-first workflows.

Senior IT Consultant for Microsoft Cloud D365 (CRM). Shape customer engagement by designing and evolving solutions using D365 and AI capabilities like Copilot. Drive end-to-end development and manage cloud platform administration.

Accountant Trade Invoicing Services supports trade invoicing within the O2C process. Responsibilities include E2E monitoring, SAP topic analysis, and creating sales/KPI reports. Requires 2-5 years in AR/Invoicing, ideally with SAP R/3 or S4/HANA experience.

Support Account Managers with sales activities, quotation, contract preparation, and order management. This role requires sales support or office administration experience, MS Office proficiency, and strong communication skills.

PLC-Programmer needed to design, program, test, and commission PLC-based control systems for the shipping industry. Requires a degree in a related field and experience with IEC 61131-3 and CODESYS.

Senior Asset/Portfolio Manager for Solar & Wind assets. Take ownership of a European portfolio, ensuring optimal performance and value creation. Lead stakeholders across technical, commercial, and financial functions.

Support the President to grow market share and revenue across Central Europe. Lead commercial teams, drive business plan execution, and manage M&A opportunities. Requires business leadership and experience in media/entertainment.

Join the team as a Lagerhelfer. Opportunities for full-time or part-time shifts are available with fixed schedules. Entry-level wage starts at €16.05 gross per hour.

Sales Excellence & Enablement Manager will optimize Salesforce usage, processes, and data quality across teams. Drive sales methodology and playbook optimization, enabling effective GTM execution. Design and deliver enablement programs, measure adoption, and develop dashboards for performance transparency.

Seeking an SAP Sales Process Optimization Specialist to drive operational excellence within Yamaha Music Europe's sales organization. This role optimizes end-to-end sales processes and establishes best practices across departments.

Senior Software Engineer to develop the Legal AI Assistant platform. Role involves end-to-end full-stack development, requiring 5+ years of experience, strong Python/FastAPI skills, and TypeScript proficiency.

PhD research position focused on neural 3D scene representations for in-cabin perception in vehicles. The project will investigate adapting techniques like neural radiance fields and implicit occupancy models to the unique challenges of reconstructing occupants from fixed camera viewpoints.

Purchase Coordinator role involves processing purchase orders, researching and negotiating with suppliers, and ensuring timely deliveries. Requires a finance or business degree, 3+ years in purchasing, and fluency in German and English.

Seeking a Development Lead for the Helmholtz Cloud portal. This role involves implementing the central Cloud Portal to provide seamless, accessible distributed cloud services to Helmholtz centers and partners.

A leading transatlantic investment bank seeks a highly motivated M&A Associate to join its Munich office. The role involves leading deal execution, managing client relationships, and collaborating with senior bankers.

Support administrative operations and recruitment activities for a regional team. Provide administrative support, maintain personnel records, coordinate meetings and onboarding processes. Assist with candidate sourcing, CV screenings, and interview scheduling.