java English-speaking jobs in Mainz

Lead global rewards frameworks, overseeing compensation, incentives, and benefits. This role partners with executive leadership on executive compensation governance, benchmarking, and strategy alignment.

Maintenance Planner for an EASA Part-145 helicopter organization. Responsibilities include planning scheduled/unscheduled maintenance, creating work packages, and coordinating tasks while ensuring compliance with EASA Part-145 requirements. Requires relevant experience.

Senior Firmware Developer to design and implement C++ application firmware on ARM Cortex-M microcontrollers using an RTOS. Focus includes credential processing (Mifare DESFire, HCE, mobile wallets) and secure system features. Requires 5+ years of embedded firmware experience.

Lead and develop the digital engineering organization for R&D, driving delivery of digital products and platforms. Shape a flexible, AI-enabled, and metric-driven engineering setup. Requires proven leadership in software engineering and organizational change.

Field Service Engineer provides on-site service and commissioning of semiconductor equipment. Responsibilities include testing, troubleshooting, and optimizing equipment performance while maintaining procedures. Requires an engineering background and strong problem-solving skills.

Deliver groceries to customers efficiently by e-scooter or e-bike. Maintain a focus on delivery targets and exceed them. Must be at least 18 years old with a valid work permit and driving license. Speak English or German and have a smartphone with mobile data access.

We are seeking a Microsoft D365 Finance and Operations Functional Consultant to implement, configure, and maintain D365 solutions. The role requires a deep understanding of financial and operational processes, excellent problem-solving abilities, and strong customer service.

Lead a team in Business Development and Project Development for PV, onshore wind, and BESS across North-Eastern Germany. Drive strategy, manage three direct reports, and shape the regional pipeline. Fluent German and English are essential.

Lead global foundry strategy and manage relationships with external semiconductor manufacturing partners. This senior role owns the global sourcing strategy, leading negotiations on capacity, pricing, and technology nodes.

The Logistics Specialist – Transport Arrangement coordinates vehicle transportation across Europe, collaborating with internal teams, logistics providers, and transport partners. This role ensures smooth transport execution, accurate shipment tracking, and timely delivery.

Sales Engineer Photonics will deliver presentations, conduct product demos, and coordinate feasibility studies. Analyzes the APAC market, develops marketing campaigns, and structures product requirements. Requires a technical background in electronics, semiconductor engineering, or a related field. Fluency in English is required, additional language skills are a plus. Travel within the APAC region is required.

3-year PhD position investigating sulfur redox transformations in wetlands and their links to iron and carbon cycling. Tasks include lab experiments, analytical method development, and fieldwork in the Black Forest. Requires MSc in a related field.

Chief Product Officer to lead product teams, driving innovation strategy and bringing new products to market. Oversee R&D, Science & Regulatory, and Product Development functions. Requires 15+ years in product, with 5+ years leading in supplements or CPG.

Lead Vendor Management & Operations role overseeing vendor logistics partners across Germany. Own operational management, performance, and strategic partnerships for external fleet management. Requires logistics/operations experience and team leadership.

Experienced SAP SD consultant to lead the Order-to-Cash workstream for a major S/4HANA RISE implementation in the Financial Services sector.

Experienced Civil or Structural Engineer needed for energy infrastructure projects. Responsibilities include civil and structural design for battery storage and substations. Requires a relevant degree, design experience, and fluent German and English.

Doctoral Researcher positions are available in Economic Theory, Empirical Microeconomics, Econometrics, or Behavioural/Experimental Economics. Requires a completed M.Sc./M.A. in Economics or related quantitative field.

Senior Sales Engineer for a market-leading SaaS platform in privacy, risk, and AI governance. Own the full deal cycle, driving technical deep-dives, POC execution, and custom integration design. Requires 2-5 years in SaaS pre-sales with business-fluent German and English.

The Plant Manager will lead and guide site operations, ensuring safe, efficient, and high-quality manufacturing performance. The role involves full end-to-end responsibility for plant operations, including production, quality, safety, maintenance, and supply chain interfaces. The Plant Manager will champion Lean Manufacturing and Continuous Improvement, embedding a culture of efficiency and operational excellence.

Lead end-to-end delivery of the AIR·MS platform and D2E projects. Manage multi-stakeholder workstreams, driving cross-functional delivery across engineering and research teams. Requires 5+ years in software development with data platforms experience.