java English-speaking jobs in Mainz

Senior Clinical Research Associate II/III will manage comprehensive clinical trial management for diverse indications. Responsibilities include site selection, monitoring, and close-out visits, supporting subject recruitment, and ensuring adherence to GCP and ICH guidelines.

Freelance lecturer needed for Computer Science courses in Operating Systems, Computer Networks, and Distributed Systems at Germany's largest university. Teach fundamental knowledge with practical relevance, design courses, and conduct practical teaching sessions.

SAP HANA Database Administrator required for remote work (EU or UK). Install, configure, and administer SAP HANA databases. Perform system monitoring, tuning, and performance optimization. Manage backups, recovery, and disaster recovery. 3+ years of experience required.

Electrician (m/w/d) needed for service and maintenance of wind turbines, including major maintenance operations and four-year scheduled inspections. Completion of ISP Major Maintenance Training and Electrician vocational training required.

Experienced Project Director to lead major Data Centre construction projects in Germany. Provide strategic direction, manage budgets, and ensure safe, profitable project delivery. Lead multidisciplinary teams, manage client relationships, and champion a positive safety culture.

Production & Materials Planner needed to manage production plans, supplier orders, and material availability. Will drive the migration of production planning from Excel to ERP (iScala experience is advantageous). Must have strong ERP skills, be fluent in German and English, and comfortable working in a dynamic environment.

Production worker needed for a 2-shift system (05:00-14:00 or 13:00-22:00). Responsibilities include cleaning, inspecting, and ensuring a safe work environment. Previous production experience is a plus.

Process Engineer to design new Delivery Stations and optimize existing ones, integrating automation and new technologies. Drive standardization and best practice sharing across EU Delivery Stations. Lead projects to improve processes and station designs. Requires experience in reliability/maintenance environments, electrical or mechanical engineering, and project management tools.

Lead daily operations of a diagnostics company's Leipzig site, overseeing production, logistics, and implementing lean manufacturing principles. Drive digital transformation initiatives and improve key performance indicators.

HR Manager to support business growth in Germany. Fluent in Mandarin and English, with German preferred. 3-5 years HR experience in Germany required. Strong knowledge of EU/UK labor laws and immigration legislation. Bachelor's degree in HR or related field.

Design, implement, and operate a modern reporting platform based on SAP BW/4HANA and SAP Analytics Cloud (SAC). Integrate data from SAP S/4HANA and other systems, establish data governance processes, and collaborate with stakeholders to understand reporting needs.

Talent Acquisition Partner will lead end-to-end recruitment processes across Germany, partnering with hiring managers to define hiring strategies and talent requirements.

Accountant / Finance Executive Assistant will provide support to financial executives. Responsibilities include receivables management, travel expense processing, and assistance with financial planning. Requires experience in customer receivables, travel expense management, and financial planning.

Experienced Project Manager needed for full-lifecycle delivery of 380/220/110 kV overhead transmission line projects in Germany. Requires 10+ years experience, civil/structural engineering background, and proficiency in relevant software. Fluent German essential.

Experienced Site Manager / Bauleiter needed for an international construction company. Manage quality, safety, timelines, and budgets on residential, commercial, and industrial projects. Must have 3+ years experience as a site manager or 5+ years as a foreman, strong knowledge of VOB regulations, and fluency in German (C1+). Nationwide travel required.

System Consultant specializing in smart logistics solutions. Leads client blueprint sessions, translates business requirements into development requests, and ensures seamless system integration. Requires understanding of WMS/WES, warehouse automation, and logistics processes. Fluent English required.

As an AI Business Consultant, you will leverage your expertise in AI technologies, Microsoft Dynamics 365, Azure, and Power Platform to advise clients on AI-driven solutions. You will analyze AI algorithms, conduct market research, and document findings to bridge the gap between technology and business strategy.

Assists with the design and analysis of clinical trials, interpreting medical data, and contributing to the advancement of treatments. Responsibilities include coordinating and administering trials, maintaining documentation, and supporting study-related materials. Requires a bachelor's degree in a scientific or healthcare field and prior clinical research experience.

Senior Full Stack Engineer will implement features end-to-end utilizing Vue.js, NestJS, and TypeScript. Collaborate with designers and programmers to ensure a simple and effective UI. Work with dev-ops and ML engineers to implement new features and optimize processes. Shape engineering culture by employing modern software engineering practices. Must have experience in real production projects with high throughput and proficiency in multiple fields. Excellent written and spoken English skills (C1 level) are required.

Capacity Planning Manager will develop structured capacity plans, mitigate capacity risks, analyze execution gaps, and optimize last mile capacity. Requires a Bachelor's degree, experience in capacity planning and controlling, proficiency in Office software, and strong analytical and communication skills.