java English-speaking jobs in Mainz

Senior Operations Controller develops production plans, monitors performance, and coordinates material availability. This role analyzes data, manages resources, and supports S&OP processes within a manufacturing environment. Requires relevant degree and experience with ERP systems.

Global Category Manager for Green Energy Procurement. Responsibilities include negotiating green electricity contracts, monitoring regulations, and developing energy data management frameworks. Requires relevant degree and international project management experience.

Regional Service Manager develops local business plans and drives growth within the service business. This role involves coaching teams, managing service partners, and targeting key accounts. A Bachelor's degree and fluency in German and English are required.

Develop and optimize two-color imaging methodologies for CDI experiments at European XFEL. This role involves planning, performing, and analyzing experimental data while contributing to reconstruction tools. A Master's in a relevant field is required.

Sales Manager drives international business growth for radiopharmaceutical solutions. Responsibilities include identifying new opportunities, securing contracts, and expanding customer base across various healthcare sectors. Requires relevant sales experience and knowledge of radiopharmacy.

Lead multidisciplinary engineering teams on major energy transition projects in Germany. Oversee high-voltage infrastructure delivery for BESS and hyperscale data centers, managing client relationships and engineering excellence.

General Manager Design & Product Management for Cold Rolling Mills. Lead the Design and Project Management division, driving strategy, managing international staff, and overseeing global product portfolio integration. Requires technical degree and leadership experience.

Lead global legal strategy for partner arrangements, ecosystem expansion, and B2B growth. Own contract strategy, risk allocation, and build scalable legal infrastructure for strategic commercial agreements.

Data Scientist role focused on turning experimental and product data into analytical solutions. Requires expertise in AI, ML, statistical modeling, and predictive analytics using Python.

Head of Payroll manages monthly payroll for Germany, Switzerland, Austria, and other countries. Responsibilities include stakeholder management, statutory reporting, and supporting the employee lifecycle. Requires German payroll expertise and knowledge of German employment law.

Solution Consultant for Supply Chain Applications/SAP eWM, WM needed. Minimum 3-5 years experience in SAP, especially eWM/WM (ECC, S/4 HANA). Experience in consulting and requirement analysis for international Supply Chain processes. Proficiency in SAP EWM functionalities and integration with other SAP modules. Degree in business administration, international management, business informatics or similar. Strong analytical skills and communication skills. Professional in English and German.

Lead automation and CSV activities for GMP manufacturing systems, including PLCs, MES/RDE, and L3-L5 systems. Define strategy, manage validation lifecycle, and ensure data integrity compliance. Requires relevant technical degree and 5+ years of experience.

Program Manager for Education at UnternehmerTUM. Own planning and execution of educational programs, manage participant communication, handle administration, and support budget tracking. Requires relevant degree and 2-4 years of project management experience.

Senior Consultant in Operations Life Sciences delivers end-to-end project delivery, designing Supply Chain strategies from R&D to manufacturing. Drive transformation programs and optimize operations using data and AI.

Head of Europe leads 150 colleagues across nine countries, driving business performance and growth. This role involves P&L ownership, operational excellence, and translating global strategy into regional action. Native German and very good English are required.

Security Partner advises business leaders by aligning security strategy with product development and cyber risk. Responsibilities include leading risk assessments and maintaining security risk views. Requires 10+ years in information security and knowledge of frameworks like ISO 27001 and GDPR.

Program Manager to direct and control program activities for Dornier Seawings. Requires a Master's in Aerospace Engineering or comparable field and 10+ years in related/avionics projects. Must be fluent in English and German.

Senior Robotics Engineer focused on dexterous manipulation for manufacturing. Own software for multi-DoF hands, from low-level joint control to grasp behavior on real hardware. Requires strong C++ and Python, ROS 2, and real-time control experience.

Procurement Specialist for Facility & Construction Services drives Sales Market procurement strategy. Responsibilities include securing supplier bases, managing agreements, and ensuring compliance with global standards. Requires 3+ years of procurement experience.

We are looking for a motivated, communicative, and well-organized HR Management Intern to join our Berlin team. You will support recruitment, employer branding, applicant management, people operations, and employee experience. You will gain direct insight into how an internation