ruby English-speaking jobs in Düsseldorf

Experienced Freelance Site Manager needed for a 550MW solar project in Brandenburg, Germany. Manage on-site construction, contractors, and ensure HSE standards are met.

The Financial Analyst provides consulting and support to internal and external stakeholders, focusing on manufacturing. Responsibilities include make-or-buy analyses, contribution margin calculations, business planning, cash flow forecasting, inventory valuation, and supply chain cost analyses.

The University of Bonn's Faculty of Mathematics and Natural Sciences seeks a Professor in Astrophysics specializing in Large-Scale Structure Surveys. The position is either a W3 tenure or a W2 tenure-track to W3 professorship. The successful candidate will contribute to the Dynaverse Excellence Cluster and engage in interdisciplinary collaboration. Teaching responsibilities cover all levels of degree programs.

This part-time role involves loading, unloading, shipping, receiving, scanning, sorting, and stocking packages. May utilize heavy machinery. Requires ability to lift up to 70 lbs. and flexible shift availability. Warehouse experience is preferred.

Define and improve test strategies, test concepts, and quality standards across multiple products and teams. Plan, coordinate, and monitor testing activities, ensuring alignment with project timelines and quality goals.

The Cluster of Excellence "Machine Learning - New Perspectives for Science" seeks Early Career Research Group Leaders to develop and apply machine learning methods in scientific disciplines.

Lead the technical direction for core systems, including subscription infrastructure, cloud foundations, and data pipelines. Modernize legacy systems and drive a pragmatic target architecture.

Experienced Electrical Supervisor needed to manage site elements of projects, ensuring project deliverables are met. Responsibilities include on-site EHSQ compliance, coordination of plant, labor, and subcontractors, and project scheduling. Requires previous supervisory experience, electrician qualifications, and project management skills.

Drive sales of high-value capital equipment within the Enabling Technologies portfolio. Manage existing accounts and identify new business opportunities. Lead complex sales cycles, build business cases, and negotiate contracts.

Senior Director EU Operations will oversee end-to-end operations across Europe, including production sites, distribution networks, and partner relationships. This role bridges the Global Canadian team and the European team, ensuring seamless integration and driving regional growth. Responsibilities include strategic planning, operational execution, performance management, financial oversight, and people leadership. The successful candidate will have 8-10+ years of experience in Operations and Supply Chain, including Manufacturing, Customer Supply Chain, Supply and Demand Planning, Warehouse and Vendor Management, Procurement, and Innovation.

Leads a team of engineering specialists in the engineering of Power Plant and Hydrogen business initiatives. Manages engineering-related risks and opportunities, ensuring compliance with technical contract execution and documentation standards. Experience in power plants and equipment, including site and commissioning work, is preferred. Strong customer focus and ability to lead a globally dispersed engineering team. Excellent spoken and written English; additional languages are an advantage.

Bartender (part-time/working student) to join a team creating memorable guest experiences. Prepare and serve drinks, build connections with guests, and contribute to a positive team culture. Basic knowledge of wine, spirits, and beer, previous bartending experience, and fluency in English are required.

Technical Writer responsible for creating, maintaining, and ensuring quality of regulatory and technical documentation for medical devices. Supports compliant documentation across the product lifecycle, aligning with EU MDR and FDA requirements. Collaborates with cross-functional teams including Regulatory Affairs, Quality Management, Clinical Affairs, and Development.

Leads the German tax compliance function for direct and indirect taxes, including preparation, review, and submission of tax filings. Oversees tax payments, accounts, reconciliations, and reporting. Establishes and maintains a German tax control framework, manages audits, and handles tax controversy matters.

Lead and develop a team of reverse logistics specialists, managing daily operations including receiving, inspection, and processing returned products. Optimize workflows, ensure quality control, and collaborate with other departments to streamline return processes.

Provides administrative, operational, and systems support. Assists with scheduling, meeting coordination, document preparation, and research. Handles inquiries, updates records, and supports onboarding. Requires strong organizational skills, communication, and proficiency in Microsoft Office. Minimum 3 years' experience in a similar role.

Drive new business growth across the DACH market (Germany, Austria, and Switzerland). Own the full sales cycle for SMB/mid-market customers, from prospecting to close.

System Integration & Vehicle Test Engineer needed for integration, calibration, and functional testing of ECUs in test vehicles. Requires experience with test vehicles, test drives, and analysis of system behavior. Must have knowledge of vehicle dynamics, drivability parameters, and in-vehicle system integration. Familiarity with diagnostic, flashing, measurement, and test management tools is essential. Experience in one of the following domains is required: Charging & Energy, High-voltage, Battery Management, Vehicle Dynamics, Chassis, Comfort & Body functions.

Home Language Tutor to support Chinese Mandarin-speaking students (ages 3-12) in a Primary School setting. Work directly with students under the guidance of qualified teachers to nurture language skills and cultural identity. Must be native-level fluent in Chinese Mandarin and highly proficient in English. Proven experience working with children in an educational or childcare setting is required.

Account Manager for Transcatheter Mitral & Tricuspid Therapies will develop and execute account strategies to drive growth within a defined geography. The role requires proven sales experience in Medical Devices, knowledge of Cardiology and Structural Heart Disease, and the ability to travel extensively.