java English-speaking jobs in Mainz

Senior Business Travel Consultant provides end-to-end booking support for elite corporate travelers. Manages complex international travel arrangements, including flights, accommodations, and auxiliary services. Requires fluency in German (C1 level) and English, 5+ years of business travel experience, and proficiency in GDS systems.

TeamViewer seeks a Distribution Account Manager to scale SMB and mid-market business via distributors and partners. This role focuses on driving scalable growth, operational excellence, and partner productivity. Responsibilities include managing distribution-led SMB and mid-market business, ensuring smooth order processing and renewal execution, and driving upsell and cross-sell motions. The ideal candidate has 5-10+ years of experience in channel sales, distribution, or partner management in the software/SaaS industry.

System Applications Engineer to develop system-level applications, including embedded software, FPGA IP, and application software for ADI's RF communication systems and ADEF platforms. Responsibilities include architecting, developing, and maintaining software projects for embedded systems, performing system bring-up and validation, and collaborating with global engineering and customer teams.

Tentamus Pharma Company seeks a commercially driven Head of Project Management to lead a cross-site organization. This role is responsible for the commercial performance, revenue recognition, and profitability of project-based business. The ideal candidate will have 8+ years of project management experience within CRO, biotech, or laboratory services and a strong commercial mindset.

Account Manager responsible for selling IVD products and systems in northern Germany. Develops regional sales strategies, builds customer relationships, and proposes solutions to meet customer needs. Requires a scientific degree, 3-5 years of sales experience in immunochemistry/diagnostics, and fluency in German and English.

Experienced Physiotherapists with a B2 German certification are sought for healthcare opportunities in Germany. Assess, diagnose, and develop personalized treatment plans for patients. Provide physiotherapy treatments and collaborate with healthcare professionals.

Senior Auditor (m/f/d) supports the Internal Audit unit in enhancing and protecting organizational value. Conducts risk-based audits at group companies globally, analyzes business processes, identifies risks, and develops audit programs. Documents work steps, prepares audit results, and communicates findings to senior management.

For the afternoon and holiday programme of our primary school in Steinbach (Taunus) near Frankfurt we are looking for a motivated and qualified Educator for our Hort (in part-time – 18 hours/week).

As Assistant Store Manager, you support the Store Manager in achieving commercial goals, leading the team, and maintaining store operations. You contribute to daily training, staff scheduling, and inventory management. You act as a brand ambassador, ensuring a positive customer experience and assisting with in-store events.

Lead Procurement and Supplier Management for the Packaging category within Direct Procurement. Engage with stakeholders to define requirements for suppliers and ensure procurement target achievement. Develop and execute category strategies, cost optimization initiatives, and long-term sourcing decisions.

Leads the development of new products, technologies, and processes for a global copper processing company. Requires a Bachelor's degree in a relevant field and 10+ years of experience in copper product R&D.

EGG GmbH is renowned as a high-performance supplier in the fields of cleaning, disinfection and care products; hygiene paper products and washroom hygiene solutions; waste bins and refuse sacks; cleaning trolleys, equipment and accessories; cleaning machines and robotics; as well as occupational safety and hygiene protection products.

Provide support to the Kia Europe Sales Team, assisting with projects, data analysis, and strategic initiatives. Support the monitoring and reporting of National Sales Company sales and incentive programs performance. Interact with business units to coordinate and consolidate market-specific data. Develop data visualizations and analysis, transforming complex sales data into clear reports and dashboards. Support the execution of Sales Department events and meetings.

Senior Scientist will manage and coordinate the development of innovative food & beverage solutions, from concept to production. Responsibilities include recipe and raw material management, project and portfolio management, and leadership of cross-functional teams. Requires a university degree in food or beverage technology, extensive experience in project work and product development, and strong leadership skills.

Teach programming online at your own pace. Deliver personalized lessons to students of all levels. Strong communication and teaching skills required.

Ecolab is a trusted partner at nearly three million customer locations in more than 170 countries and a global leader in water, hygiene and infection prevention solutions.

The Data Center Engineering Operations Technician is responsible for the delivery of best practice systems and problem resolution on data center electrical and mechanical infrastructure. This role requires a self-managed individual who proactively seeks solutions to complex technical problems. Responsibilities include setting and maintaining safety standards, driving continuous improvement efforts, and collaborating with stakeholders to deliver operational excellence. The technician will also perform preventive maintenance, monitor facility infrastructure, and respond to potential customer-impacting events.

The NATO Integrated Mission Services Centre (NIMSC) seeks industry support to deliver technical, operational, engineering, and service-governance activities for the NATO Security Assistance and Training for Ukraine (NSATU). The Contractor will provide Routing and Switching Level 3 service technical support, infrastructure maintenance, system documentation management, Engineering service reporting, and participation in on-call and operational coordination activities.

Demi Chef de Partie (m/f/d) for à la carte service in Champions Bar & Restaurant and The Grapeful Vinothek. Prepares fresh, high-quality dishes, ensures smooth operations, and contributes ideas. Requires completed chef training, experience as a Demi Chef de Partie or Commis de Cuisine, and experience in à la carte service.

Lead a local community of culture, wellbeing, creativity, and development experts. Organize gatherings, connect with peers, and grow your network.