java English-speaking jobs in Mainz

Performs full-spectrum firefighting, rescue, and evacuation. Responds to hazardous incidents, provides BLS, and operates alarm systems. Requires German firefighter certification and specific medical fitness.

Develop and design analogue and digital electronic systems for cutting-edge experimental physics research. Responsibilities include PCB design, firmware development, and system troubleshooting. Requires a degree in electrical engineering and practical experience.

Develop and test AI agents and workflow automations using LLMs and agentic AI frameworks. Support integration with enterprise data and drive prompt engineering and performance optimization.

Adaptable PYP Classroom Teacher needed for Primary School starting November 2026. Support the IB mission, manage resources, and differentiate lessons for diverse learners. Requires a relevant degree and 3+ years of experience in a multilingual setting.

Lead Maintenance & Operations Supervisor for a new high-tech surface treatment plant. Responsibilities include ensuring operational stability, managing technical teams, and overseeing 24/7 operations. Experience with automated systems is key.

Senior People & Culture Business Partner enables leaders to build high-performing teams. Responsibilities include owning leader relationships, driving performance culture, and partnering on talent and organization design in a fast-moving scale-up.

PhD Candidate role in Materials Science focusing on Spectroscopy. Responsibilities include designing and conducting in situ/operando experiments, analyzing data, and contributing to research. Requires a Master's in chemistry, physics, materials science, or chemical engineering.

Working Student/Intern for People & Culture Marketing and Employer Branding. Develop social media content, support recruiting and events, and manage the careers inbox while ensuring data compliance. Requires enrollment in a Bachelor's or Master's program.

Senior Internal Control Associate drives innovation using Generative AI to transform IC processes. Responsibilities include shaping methodology, owning the IT Controls framework, and coaching the global IC community. Requires IT Controls expertise and strong German/English skills.

Site-based EHS Construction Specialist supporting major data center developments. Drive compliance with NTT's EHS standards and ISO 45001 across all construction phases. Requires 5+ years EHS experience and 2+ years in construction.

Pregnancy, childbirth, and early parenthood bring about a lot of changes. And with each phase, new questions arise: small ones, big ones, practical ones, emotional ones. Glimmer helps to see more clearly what's happening right now, what's important, and what's right. We combine in-depth expert knowledge, a digital midwife consultation service, and practical tips in one app.

The SuccessFactors Enablement Manager connects Global HR, regional HR teams, IT, and partners to implement SAP SuccessFactors internationally. This role translates system designs into practical workflows, incorporates regional needs into global designs, and coordinates testing, deployment, training, and adoption.

Develop and implement a scalable channel and distribution strategy across EMEA for industrial connectivity. Lead the Channel Management organization, manage key distributors, and drive profitable revenue growth. Requires B2B channel sales experience.

Drive global growth for Digital Health Solutions via strategic partnerships, acquisitions, and ecosystem development. Define and execute strategy to expand recurring digital revenue and portfolio value.

Dual Master in Event Management and Communication for Group Actuarial at Allianz SE. Organize global actuarial events, create Intranet content, and design internal communications. Requires a Bachelor's in Communications or Business and enrollment in the SIBE dual master's program.

Field Based Account Manager for Commercial Road Transport in South Germany. Manage and grow CRT accounts, selling the full portfolio including fuels, E-Mobility solutions, and services. Requires sales experience, strong relationship management, and fluency in German and English.

Senior Technology Advisor advises clients on complex technology and transformation initiatives. Leads technology programs, designing solutions in cloud, AI, and DevOps. Requires 7-10 years in technology consulting with business-fluent German and excellent English.

SAP S/4HANA CSV & Validation Consultant needed for a pharmaceutical company deploying the core model in Germany. Responsibilities include validating SAP processes (MM, QM, FI/CO, etc.), managing data migration, and ensuring regulatory compliance.

Support ESG & Impact reporting for a leading bioeconomy VC. You will collect, validate data, prepare analyses, and drive process improvements using analytical skills. Master's student in a relevant field with passion for sustainability is ideal.

The Interroll Group seeks a Lean Manufacturing Manager to oversee operations for a global provider of material-handling solutions. This role supports various industries using Interroll's products and services.