java English-speaking jobs in Mainz

Service Technician for dental treatment units and sterilization systems. Provides technical support to distributors and customers, including installation, troubleshooting, and maintenance. Requires a degree in Biomedical Engineering or related field and experience in technical support for medical devices. Fluent German and English required. Extensive travel (approx. 50%) is necessary.

The ION Endoluminal Sales Representative reports to the ION Endoluminal Program Manager and focuses on building and supporting early sustainable users of the Ion platform for lung biopsy. Responsibilities include providing procedural support, developing integration plans, driving utilization, and collaborating with stakeholders. Requires a bachelor's degree, minimum 5 years of sales experience including 3+ years in healthcare sales, and the ability to travel up to 60%.

Partner to build and lead a data strategy offering across Germany and Europe. Deep expertise in data strategy, governance, management, and integration required. Proven track record leading complex data transformation programs and translating technical detail into strategic agendas. Fluency in German and English.

Develop and validate distributed software architectures for modular space and robotic systems. Implement inter- and intra-module communication, service discovery, and state management. Utilize Linux, ROS/ROS 2, etcd, containerization, and automated software testing. Conduct software tests, integration trials, and hardware-in-the-loop validations. Collaborate in research and industry projects with a practical focus.

Research Associate for a project investigating the drought vulnerability of mycorrhizal functions in the forest floor. Duties include studying mycorrhizal community structure, functions, and resilience to drought, conducting experiments, and publishing research findings.

Procurement Specialist drives the Sales market procurement strategy for Facility & Construction Services, ensuring compliant, efficient, and transparent processes.

Working student or thesis opportunity in AI for Computer Science or Business Informatics students. Develop AI solutions in computer vision, NLP, or predictive analytics. Support the machine learning lifecycle and integrate AI models into software products.

Manage and process international settlement and trade finance transactions, including letters of credit and documentary collections. Perform document reviews, system operations, and transaction monitoring. Support operational procedure improvements and maintain accurate transaction records.

Experienced Senior Resource Manager needed for Resource Management Office. Strong background in Professional Services, IT Consulting, or SaaS consulting environments required. Proven experience managing resource allocation across multiple projects with varying sizes, durations, and delivery models.

Senior UX/UI Designer & Builder will own the end-to-end design-to-production lifecycle of WhyBrilliant's B2B SaaS talent platform. Must have experience with B2B SaaS design, Claude Code, Figma, Radix, shadcn, HTML, CSS, and JavaScript.

Drive the growth of Next Generation Products across Europe. Develop new business opportunities, manage customer relationships, and collaborate with cross-functional teams to deliver innovative flavor solutions for nicotine pouch and other next-generation product manufacturers.

The HR Leader DACH, Country & Plant for Germany will lead HR for a global manufacturing company's German operations and across DACH (Germany, Austria, Switzerland). This dual-role combines Country HR leadership (60%) and Plant HR leadership (40%). Responsibilities include building organizational capability, supporting operational excellence, leading a high-performing team, and ensuring compliance.

Site Manager (m/f/d) will oversee strategic and operational aspects of a large-scale logistics facility. Responsibilities include managing P&L, end-to-end operational processes, KPI optimization, risk management, and stakeholder engagement.

Leads KFC's new store development efforts in a designated region of Germany, identifying priority markets and expansion strategies. Manages projects from site identification through signed agreements, permitting, and handover to construction and operations teams. Builds strategic partnerships with property owners, developers, and municipalities to secure new restaurant locations.

Translate captions, subtitles, documents, and web pages from English to German. Fix cultural translation issues and maintain translation databases. Requires a bachelor's degree, four years of translation experience, and fluency in English and German.

The Chief Revenue Officer will lead the full commercial architecture of OneDealer, an AI-native automotive retail platform, including sales, partnerships, and customer success. This role will define and own the global revenue strategy, manage the P&L, and lead the global sales function. The CRO will integrate commercial organizations from acquired companies and steward strategic partnerships.

Develop and operationalize AI-enabled workflows for the harmonization, curation, and quality assurance of environmental data. Design scalable workflows for data ingestion, integration, deduplication, and harmonization. Develop and evaluate hybrid QA/QC methods combining rule-based and machine-learning approaches.

Provides administrative and logistical support to JSEC personnel and their dependents, including housing assistance, school and daycare support, and event planning. Requires secondary education, office administration experience, and fluency in English and German. Must possess a valid European class B driving license and a current Sicherheitsüberprüfung (SÜ2) security clearance.

Business Analyst – Patient Engagement will analyze business and product requirements, derive functional and non-functional requirements, and clarify issues with development, architecture, and product management.

As Vice President Customer Projects, you will lead the global Customer Projects organization, drive the strategic development of Professional Services and Delivery teams, and establish scalable structures to support global growth. You will oversee the successful planning, execution, and delivery of customer implementation projects, ensuring they are delivered on time, within budget, and to quality standards.