java English-speaking jobs in Mainz

Customer Success Specialist needed for a Global Technology Payments Vendor in Berlin. Prospect, build relationships, and customize solutions for clients. Fluent German required, sales experience preferred.

Conduct cutting-edge research in computer vision for autonomous driving, aiming for high-impact publications. Drive group growth by securing third-party funding. Provide mentorship and project management guidance to students.

Experienced Asset Manager (3-5 years) to develop and execute asset strategies, conduct market research, manage leasing activities, and oversee capital improvement projects.

Develop and optimize large-scale machine learning systems for 3D environment interpretation. Improve object detection, tracking, segmentation, and freespace estimation. Implement robust tracking algorithms and train models using in-house compute infrastructure.

Manage sample/loan orders, support warehouse operations, and assist with technical support projects. Must be a currently enrolled university student with an engineering or technical background, fluent in English or German, and available to work up to 20 hours per week.

Supports the implementation of Lean Design and Lean Construction methods across project phases using PPM, LPS, and Exyte software. Trains project team members on Lean Construction tools and software. Contributes to the continuous improvement of Lean tools and methods.

Project Manager to oversee strategic and technical projects in Europe's fusion energy sector. Manages multiple projects, ensuring timelines, budgets, and quality standards are met. Collaborates with design, manufacturing, and quality assurance teams.

Lead construction and renovation projects from lease signing to opening day, ensuring quality, timelines, and budgets are met. Collaborate with landlords, contractors, and internal teams to bring properties to life, adhering to brand standards and delivering exceptional guest experiences.

Build and launch business tools end-to-end using AI-native tools. Own the full launch process, from concept to live URL, and iterate based on usage data. Must have a live portfolio demonstrating your ability to ship quickly.

Junior Procurement Analyst supports supply chain management, acts as a contact point for suppliers, negotiates prices, places orders, and coordinates deliveries.

Ophthalmologists (m/f/d) are sought for positions throughout Germany. Responsibilities include general ophthalmological examinations and treatments, visual acuity tests, preventive medical check-ups, and screening tests. The environment offers modern outpatient treatment infrastructure, administrative relief, and opportunities for professional development.

Software Developer (m/f/d) for scientific applications with a focus on Big Data. You will redevelop a central application for plant breeding and molecular biology, working in a SCRUM team and with a Product Owner from the field of molecular biology.

This role is the business owner for a major automotive customer group, responsible for revenue growth, profitability, customer strategy, and cross-functional delivery. The position requires experience in Tier-1 automotive or complex technology business with customer ownership responsibility, a strong background in commercial strategy, pricing negotiation, and new business development, and the ability to manage cross-functional stakeholders and drive alignment across global teams. Chinese native speaker is a must, fluent in English.

Leads, manages, and decides on all global customs & export control topics, ensuring compliance with regulations and tax laws. Directs legal changes and emerging trends in global trade and tax legislation. Operates import-export activities, tariff classifications, and AEO certification. Implements global customs procedures and coordinates corrective actions. Manages audits, trains, and maintains customs & export control knowledge across the organization.

Associate Consultant to develop commercial strategies for airlines globally. Conduct market analysis, participate in business development, and analyze data to identify industry trends and issues.

Architect scalable AI systems that deliver business value and guide technical teams through complex AI implementations. Lead on AI technologies, identify high-impact use cases, and drive AI initiatives in collaboration with senior IT management and product teams.

Digital Brand Designer needed to bring a new brand to life across digital and offline channels. Responsibilities include creating campaign visuals, landing pages, email creatives, social media assets, and packaging. Must have 4-5 years of design experience, proficiency in Figma and Adobe Creative Suite, and a strong portfolio. Fluent English required, German is a plus.

Oversees social compliance audits, ethical standards, and subcontractor alignment for data center construction projects. Conducts on-site audits, produces reports, and manages modern slavery and supply chain queries.

Customer Experience Specialist needed for full-time, permanent role. Responsibilities include handling customer support queries, providing service support, qualifying and logging cases, and collaborating with support and delivery teams.

Experienced Completions Engineers needed for mechanical completion and system handover activities on a large-scale petrochemical construction project in Germany. Roles require 5+ years of experience in completions on industrial projects, proficiency in handover software (Hexagon, WinPCS, ICAPS), and strong understanding of construction sequencing and workflows.