java English-speaking jobs in Mainz

Provides administrative support to the Sales & Marketing department. Prepares sales documents, gathers information packages, and answers guest inquiries. Communicates with clients via phone and email.

Drive growth as Sales Manager System Gastronomy, winning new customers and expanding NovaTaste's footprint in the German market.

Provides support to Naturland members in Spain and other countries, including guidance on certification, finance, and quality management. Oversees quality assurance processes and contributes to European funding projects.

Student position at the German Aerospace Centre (DLR) focusing on controlling virtual human models using machine learning. Tasks include investigating motion generation methods, conducting simulations, and applying ML to biomechanical problems. Requires a scientific background in relevant fields and experience with finite element software and Python.

Internship in High Precision Metrology for master's students in engineering, optics & photonics, computer science, physics, or similar. Develop optoelectronic laboratory prototypes based on simulations and experimentation.

Ensures molecular and particulate cleanliness for components used in electron microscopes. Develops, optimizes, and qualifies cleaning processes for sensitive surfaces. Implements and maintains contamination-control standards and procedures. Performs surface analysis using various techniques and leads root-cause analyses.

Leads and coordinates all internal and external audits, ensuring seamless cooperation with auditors and timely implementation of recommendations. Manages and ensures the quality of services received via Service Level Agreements (SLAs) to optimize operational efficiency. Serves as the key local contact for the Group’s IFRS network, service providers, and joint ventures. Ensures adherence to evolving statutory requirements, including e.g. the preparation for IFRS 18 and integrated ESG/non-financial reporting standards. Leads or participates in strategic cross-functional projects, such as system migrations (e.g., SAP S/4HANA) or organizational restructurings.

Creates user assistance for client software, including terminology, UI texts, embedded help, and documentation. Advocates for excellent user experience and collaborates with UX and UA peers.

Leads the consumer experience roadmap, aligning UX choices with business outcomes. Translates UX into measurable results, partnering with Finance and Marketing to drive product decisions tied to unit economics. Leads cross-functional teams, fostering a test-and-learn culture. Requires 8+ years of experience building consumer software at high-growth tech companies with a proven track record of launching products that moved metrics.

PhD position in deep learning for phase-contrast synchrotron X-ray tomography. Develop physics-informed, self-supervised learning approaches for phase retrieval and implement reconstruction algorithms.

Support the Analytics team in calculating KPIs, creating visualizations, and providing data-driven insights. Clean, explore, and transform data to ensure data quality and availability. Collaborate with developers and analysts to improve products and data infrastructure.

Implement and verify adjustment and verification routines for high-speed digital and optical measurement instruments. Develop test software solutions in C# and support R&D in design for testability and automated component characterization.

Airbus Helicopters seeks motivated Certifying Staff (m/f/d) for various locations. Responsibilities include identifying malfunctions, carrying out inspections, supervising tests, and ensuring operational and safety requirements are met. Requires a completed vocational training in aircraft mechanics, EASA Part-66 CAT B1.3 license, and experience in aviation assembly, inspection, and maintenance. Fluency in German and English is required.

The German Federal Pension Insurance Fund seeks an IT Specialist for Basic Services Infrastructure. The role involves shaping team tasks, taking thematic responsibility, and actively participating in the area of basic infrastructure. Responsibilities include monitoring, troubleshooting, and optimizing IT systems, as well as participating in the development and implementation of IT security and quality assurance measures. The position requires a university degree in IT or comparable qualification, several years of relevant practical experience, and strong knowledge of data center infrastructure.

Master Data Manager / Technical Master Data Specialist will review, create, and maintain material master data in the ERP system. Responsibilities include spare part preselection, examination of CAD models, creation of spare parts lists, and collaboration with internal and external stakeholders. Requires a university degree or technical vocational training with experience in material data management, technical writing, and ERP systems.

Senior Launch Manager will lead cross-functional, multi-regional launch teams, driving end-to-end launch preparation and execution globally. This role ensures speed, quality, and commercial readiness, operating at the intersection of development, supply chain, regulatory, and commercial functions.

Research Assistant/Doctoral Student will work on research questions related to digitalization, sustainability, performance management, and CFO roles in corporate transformation. The position requires a strong interest in these areas, analytical skills, perseverance, a master's degree, and excellent English.

Support the Assembly Technology department as a Volunteer for International Experience (VIE) in Hamburg. This 24-month role involves supporting the Assembly Technology Innovation Team in Manufacturing Engineering. Tasks include organizing demonstrators, running test campaigns, and working with metrology equipment.

Leads the Utility Engineering department, providing customer consulting and designing utility systems for global beverage industry projects. Develops sustainable energy concepts, manages supplier relationships, and supports sales strategies.

Senior Product Manager to lead product strategy and growth for a new product line. Will conduct market research, define product requirements, and collaborate with cross-functional teams. Requires 3-5 years of experience in product management or marketing within the medical sector.