java English-speaking jobs in Mainz

Experienced Clinical Research Associate II needed to manage sites across the DACH region. Responsibilities include performing monitoring activities, ensuring ICH-GCP compliance, and maintaining documentation. Essential skills include fluency in German and English.

Technical Safety Instructor role overseeing and teaching safety courses like HUET or Sea Survival. Requires relevant safety qualifications, local residency in Bremerhaven, and fluency in German with good English.

Manage day-to-day operations for a student residence, leading the on-site team and ensuring high service and compliance standards. Drive occupancy, manage budgets, and oversee the resident journey. Requires strong German and English skills.

Experienced HR Manager needed to lead the local HR team, optimize processes, and ensure compliance. Requires university degree, solid HR knowledge (labor law, development), and fluency in German and English.

Establish and manage the German aftersales function for the Changan brand. Recruit, manage, and mentor a team. Develop and implement parts supply, technical support, and customer service programs. Meet performance targets and work with dealers to ensure high customer satisfaction.

Seeking a Managing Director for Ambulant Care to drive business success in Germany. This role requires leadership in sales growth, business planning, and operational performance, ensuring high-quality care delivery and financial health.

NIO is seeking an IP Counsel to identify, manage, and protect designs, trademarks, and inventions. Responsibilities include conducting searches, filing applications, and advising on IP matters. The ideal candidate has a law degree, 3+ years of IP experience, and strong communication skills.

Service Technician provides on-site support for the operation and maintenance of industrial fluid systems at a customer's manufacturing facility in Offenbach am Main, Germany. Responsibilities include ensuring optimal fluid condition, communicating with internal and external stakeholders, and maintaining accurate data. Requires technical training or equivalent experience, fluency in German and English, and strong customer focus.

Lead strategic wholesale negotiations and MVNO partnerships, shaping the European mobile communications model. Manage MNO negotiations (data, voice, roaming, 5G) and optimize capacity service models. Requires telco/wholesale negotiation experience and fluency in German and English.

Founding Partner role supporting executive committees on strategic and operational challenges in energy transition, mobility, and circular economy. Requires 4+ years in strategy consulting and 3+ years in sales or entrepreneurship.

Experienced hospital nurse sought for a full-time, fixed-term role. This Near Patient Nurse position requires clinical experience in the inpatient setting and offers a hybrid work model with regional travel.

Warehouse Operator ensures accurate order packing and maintains an efficient, safe warehouse. Duties include receiving, picking, packing, and shipping stock. Requires forklift operation experience, reliability, and good English and German skills.

Own and grow the international Hot & Cold piping solutions portfolio. This role manages the end-to-end product lifecycle, strategy, and innovation for Wavin's systems. Requires 6+ years in strategic product management.

Full-Time Journalist needed to research, write, and produce high-quality content for a digital platform. Requires proven journalism experience, strong research/fact-checking skills, and ability to meet deadlines.

Lead end-to-end software development projects for Tier 1/2 enterprise clients in Manufacturing and Retail across the DACH region. Own scope, budget, risks, and drive delivery with cross-functional teams. Requires SDLC knowledge and strong German skills.

The Head of Finance drives financial governance, control, and strategic insight. Responsibilities include managing European financial reporting under HGB and IFRS, leading budgeting, and overseeing team development. Requires a qualified accountant with 5+ years of international experience.

UX Design Specialist supports the design, visualization, and validation of intuitive customer experiences across digital and physical touchpoints. Responsibilities include creating mockups, translating journeys, and supporting usability testing. Requires a relevant degree and 1-2 years of experience.

Experienced Executive Assistant needed to support senior leadership in a dynamic industry association. Responsibilities include managing complex schedules, communications, and administrative operations. Must be highly organized and proactive. Fluent in German is required.

Lead the DACH Test Business as Sales Director, owning commercial success for Siemens Test. This player-coach role drives revenue, strategy, and builds a high-performing Sales and PreSales organization. Requires B2B sales leadership in engineering technology.

Coordinate end-to-end launch of new supplement products, manage marketing on TikTok, Meta, and Google, and handle initial factory operations. This role supports commercial activities across USA, Switzerland, and Spain.