java English-speaking jobs in Mainz

Run structured outbound cold calls to identify target companies and decision-makers across Europe. Generate qualified leads and book meetings for Account Executives while maintaining CRM data in HubSpot. Native-level English is required.

Specialist Project Planning & Scheduling supports the entire product and project lifecycle. Responsibilities include technical order processing, project coordination across departments, and after-sales management. Requires technical understanding and fluent German and English.

Working Student supporting product development in application. Responsibilities include completing SAP data, measuring product properties, and assisting with lab tasks like sample production. Requires a student in nutritional sciences or related field, fluent in English and German.

Own global category strategy for Li-ion, Na-ion, and ultracapacitor technologies. Manage cost, supply security, and commercial excellence across the full component lifecycle. Requires 8+ years in strategic sourcing and battery supply chain.

Management Associate - Sales EMEA supports the President EMEA on strategic growth initiatives. This role involves analyzing market trends, driving commercial activities, and collaborating across teams. Fluent German and English are required.

Sales Executive for Electromagnetic Compatibility (EMC) and Wireless technologies. UL Solutions provides testing, inspection, and certification services to support customer product innovation and growth.

Seeking an Oracle DBA specializing in EMCC to design and advance the target architecture for the Oracle Enterprise Manager Cloud Control platform. Requires 2+ years of experience with Oracle database landscapes connected to EMCC. German fluency is required.

Skilled Cook needed for food preparation, cooking, and maintaining high kitchen hygiene standards. Responsibilities include preparing dishes, managing stock, and ensuring timely service. Requires professional experience and ability to work efficiently under pressure.

Internal Audit seeks an Auditor to review processes, identify risks, and drive improvements. Responsibilities include financial audits, testing business processes against US GAAP, and supporting consulting projects. Requires a relevant degree and 3 years of finance/accounting experience.

Technical Assistant needed for Genome Editing Trait Discovery. Responsibilities include designing protein-protein interaction experiments and performing cloning. Must have experience with plant-based protein-protein interaction assays.

Design and implement learning experiences for unmanned systems. Define instructional approaches, digitize content, and build scalable offerings using digital and blended learning methods. Requires expertise in adult learning and Moodle.

Backend Developer needed for scalable microservices using Node.js, Fastify, and TypeORM. Requires German fluency, TDD experience, and knowledge of relational databases.

IT Network Administrator role involving expansion and development of LAN, WLAN, WAN, VPN, and VLAN infrastructure. Responsibilities include configuration, monitoring, security implementation, and issue resolution. Requires a relevant degree/training and several years of network technology experience.

Servicetechniker for Versorgungstechnik at STRABAG PFS. This role supports integrated building solutions, providing technical expertise across various property types.

Working Student for Marketplace Sales. Evaluate fashion brands and retailers, research new partners, and manage lead data in CRM and spreadsheets. Requires economics degree, strong English, and proficiency in Google Workspace/MS Office.

Project Manager Design System manages the full project life cycle for a technology platform. This role requires 5+ years in the semiconductor business, ideally with project management experience.

The Global Media Director for Consumer Brands supports Freudenberg Home and Cleaning Solutions, a leading global supplier of branded cleaning and household care products.

Experienced MIG/MAG Welders needed for manufacturing and industrial companies. Responsibilities include welding steel, fabricating components, and inspecting weld quality while adhering to safety standards. Requires minimum 2 years of experience and relevant technical skills.

Kitchen Help supports the entire kitchen team with various tasks. Responsibilities include cleaning and storing dinnerware and utensils professionally. Experience in a hotel, restaurant, or catering facility is required.

Experienced SAP S/4HANA Public Cloud Functional Consultant needed for S2P & L2C transformation. Responsibilities include Fit-to-Standard workshops, configuration, and supporting procurement/sales processes. Requires hands-on S/4HANA Public Cloud experience and German fluency.