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.

AI Creative Producer for Mobile Games. Generate ad assets using AI, understanding its capabilities and limitations. Brief UGC creators and drive high-volume creative output for app campaigns.

(Senior) Operations Resource Planning Engineer at ESMC GmbH. This role interfaces between production, supply chain, and operations to ensure manufacturing runs according to plan using data to understand capacity and identify bottlenecks.

Senior AI Software Engineer to design and develop cloud-native web applications with AI-powered features. Requires full-stack experience (React/Angular, Java/Spring Boot or Python), cloud knowledge (Kubernetes, Terraform), and AI integration skills.

Scientific Programmer to contribute to large-scale ICON simulations with the Cleo model. Requires strong programming skills, experience in HPC, and collaboration.

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.

Senior IT Consultant for Microsoft Cloud D365 (CRM) to shape customer engagement using AI and D365. Drive end-to-end solution development, leveraging AI capabilities to enhance customer experience. Requires ~5 years of D365 CRM experience.

Greenfields seeks a highly organized Office Manager for its Berlin office. The role involves managing daily operations, providing administrative support, coordinating calendars and meetings, and acting as a point of contact for clients and partners.

Own global Purchase-to-Pay (P2P) accounting processes, including accounts payable and travel reimbursements. Establish global standards, drive process improvements using technology, and manage a third-party provider. Requires 10+ years in financial process management.

Support global digital and internal communications, media relations, and content creation. Responsibilities include drafting text, managing CMS, and creating visual assets. Requires current enrollment in a relevant degree program.

Vice President, Economic Advisory leads complex competition, regulatory, and dispute engagements. Requires advanced quantitative background and experience advising on antitrust, damages, and arbitration.

ISPOR seeks a Chief Financial Officer to lead finance and accounting. This role involves financial strategy, multi-year forecasting, risk management, and ensuring compliance with nonprofit regulations.

System Engineer for maintenance design on civil and military helicopters for Airbus. Responsibilities include supplier management, software logic development, causal modeling, and diagnostic strategy definition. Requires System Engineering studies and 5+ years in aviation project management.

VP, Partner Ecosystem to shape and execute partner strategy, driving growth by scaling alliances in technology. Responsibilities include managing channel programs, developing go-to-market activities, and evaluating EdTech partnerships.

Lead AI product vision and strategy for Toolbx. Direct product managers and engineers to execute AI-driven products. Requires 7+ years in product management with AI focus and strong leadership.

Senior Coordinator for Revenue Operations/Billing. Coordinates billing processes, supports attorneys and clients, and analyzes complex client billing while ensuring adherence to firm guidelines. Requires experience in legal/professional services.

Accountant Trade Invoicing Services role requires 2-5 years in AR, Invoicing, or Supply Chain. Responsibilities include SAP support, E2E monitoring, and process development. Formal training in Business/Accounting is required.

Project Manager to oversee day-to-day execution of a large data center construction project. Manages construction, design, procurement, commercial, QA/QC, EHS, and commissioning activities. Requires a degree in civil, mechanical, or electrical engineering, or a related field, and 10+ years of experience in large construction projects. Fluency in English is required, German or Polish is advantageous.

Logistics Specialist manages shipping documents, coordinates sea, air, and land freight, and tracks shipment status. This role requires proficiency in English and German, strong coordination skills, and experience with logistics systems is a plus.

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.