java English-speaking jobs in Mainz

Maintenance Mechanic develops and achieves planned equipment maintenance. Responsibilities include training staff, root cause analysis, and updating technical specifications. Requires 5+ years in a technical role with knowledge of electric, hydraulic, pneumatic, and automation.

Coordinate domestic and international travel for the CEO and CFO, manage expense claims in Concur, and handle procurement administration. Support executive meetings and provide administrative backup. Requires 3-5 years of relevant experience.

Lead global legal product strategy, aligning risk frameworks with the product roadmap. Provide counsel on international consumer law, e-commerce, and digital platform requirements while setting vision for an AI-first legal function.

Join Nachhilfeunterricht as a Maths & Physics Tutor. Provide personalized support for students needing help with school studies and exam preparation. Basic knowledge of Maths and Physics is required.

Execute process and risk-based IT audits for the DHL Group. Develop audit programs, conduct testing, and deliver high-quality audit results. Requires a degree in IT or Business Admin and 2+ years of relevant experience.

Trend Researcher Aircraft Cabins for Airbus requires analyzing market and customer needs to quantify future requirements. Responsibilities include marketing analysis and contributing to product strategy. Candidates need relevant studies and data analysis experience.

Postdoctoral Researcher needed for an interdisciplinary project at DKFZ focusing on Biomedical Semantics, Ontologies, and LLM Integration. Responsibilities include designing ontologies and knowledge graphs using OWL/RDF.

Support the Senior Visual Merchandising Lead in executing EMEA strategies across brand stores and wholesale partners. Manage projects, review store execution, and develop regional standards. Requires 2-4 years of experience and strong communication skills.

Working Student in Logistics handles incoming/outgoing goods, documentation, and carrier coordination. Requires enrollment in a relevant degree, precision, proactive communication, and fluency in German and English.

Senior Principal Architect for Automotive designs robust architectures for strategic customer use cases. Requires 12+ years experience, expertise in AD/ADAS, and deep knowledge of automotive systems.

Support spacecraft engineering for interplanetary missions. Duties include operational analysis, ground system support, procedure development, and in-flight operations. Requires a relevant degree and 2+ years in spacecraft operations.

As a Working Student HR, you will support daily HR operations, manage employee records, and serve as a point of contact for HR-related queries. You will prepare reports, participate in projects, and collaborate with stakeholders.

Internship in Process Engineering for Abrasive Cleaning. Tasks include analyzing nozzle performance, researching alternative designs, developing custom nozzle designs, and conducting prototype testing. Requires analytical thinking and a structured work style.

Sales Manager PLM for Shipbuilding requires a technical background in maritime engineering and proven sales experience. Responsibilities include expanding the international customer base and managing international sales cycles.

RobCo seeks a founding General Counsel to build and lead the legal function for this AI-powered robotics company. This role will establish legal operations infrastructure, manage external counsel, and serve as a trusted advisor to the CEO and CFO. Responsibilities include building the deal desk function, negotiating commercial contracts, overseeing corporate entity structuring, and advising on employment and compliance matters.

Field Sales Intern role focused on winning new business for a food-tech company. Responsibilities include daily field visits, cold outreach, and pipeline management. Requires German C1+ and fluent English.

Service-Staff Breakfast supports guest care during breakfast and à la carte lunch. Requires hospitality experience, a passionate, organized, and reliable nature, and confident English communication.

Associate Expert R&D Molecular Design focuses on biologics drug discovery in Immunology and Hematology. Responsibilities include high-throughput protein interaction screening using BLI and HT-SPR. Candidates need an MSc or BSc with relevant experience.

Own end-to-end outbound and pipeline generation via phone, email, and LinkedIn. Requires 6+ months outbound sales experience, German fluency, and high ownership.

Experienced CFO to lead finance, accounting, controlling, legal, insurance, governance, and compliance for a growing PE-backed industrial company. Responsibilities include financial reporting, budgeting, forecasting, and driving EBITDA, margin, and cash flow performance.