ruby English-speaking jobs in Düsseldorf

Office Manager responsible for daily administration, vendor management, office maintenance, and support services.

Technical Engineer Solutions & Mega Projects FSE will support the growth of Watts' Mega Projects business. This role involves developing technical strategies, providing support to customers, and collaborating with internal and external teams to drive sales and profitability. The position requires a strong technical background, excellent communication skills, and experience in the Mega Projects industry.

Validation Engineer will plan, prepare, and execute test procedures on test benches and vehicles. Validation of hardware and software functions, including charging infrastructure, control units, and vehicle components. Analysis, evaluation, and documentation of measurement data. Creation of test specifications, test cases, and validation reports.

Spark is seeking an experienced General Counsel to advise on commercial growth, new products, and the evolving legal landscape of digital assets. This role will focus on supporting institutional business by structuring, negotiating, and advising on complex commercial relationships across lending, prime, and savings products. The General Counsel will also advise on corporate legal strategy, product development, governance, and regulatory issues.

Legal & Compliance working student (20 hours/week) to assist with contract review, drafting, and negotiation. Conduct legal research, compliance tasks, and collaborate with internal departments.

Senior Credit Analyst for international financing transactions. Risk management, credit analysis, and proposal finalization. Requires economics/finance degree or banking apprenticeship with relevant experience. Credit approval authority and proficiency in English (C1+) are advantageous.

The German Sport University Cologne seeks a W3 Professor in Experimental Sports Medicine to collaborate in degree programs and academic self-administration. The professorship focuses on interdisciplinary research in sports and health, with a particular emphasis on AI-supported training interventions. Applicants must have a completed degree in human medicine, a PhD, pedagogical skills, and a postdoctoral qualification.

Build the Continuous Improvement function at a growing logistics hub by introducing Lean principles, developing the CI roadmap, and leading improvement initiatives. Requires experience in CI/Lean and fluency in German.

Sales Account Manager for Bruker Nano Surfaces and Metrology (BNSM) in Germany. BNSM provides advanced tools for surface and materials characterization across various industries.

RIFCON GmbH seeks an experienced Environmental Fate / Modelling Scientist to join their team in Hirschberg or Ludwigshafen, Germany. The role involves environmental fate risk assessment, dossier preparation, study evaluation, and project management for active substances and plant protection products.

Customer Service & Logistics Coordinator needed to manage customer accounts, process orders, coordinate deliveries, and handle customer inquiries. Requires fluency in English and experience in customer service, sales support, logistics, or order management.

Project Manager to deliver client-facing AI projects for a Berlin-based tech scale-up. 2-4 years' experience in consulting, tech consulting, or project management required. Strong communication, stakeholder management, and analytical skills needed. Fluent German and English essential.

Master's thesis project focusing on advancing conversational AI for commercial vehicle drivers towards emotion-aware interaction. The project will involve identifying model approaches, defining test cases, benchmarking models, and deploying a prototype with emotion recognition capabilities.

Join our team and help deliver smiles! Assist with unloading, lifting, transporting, scanning, sorting, and diverting Amazon products. Must be able to speak basic German or English, follow safety guidelines, and be comfortable standing and lifting up to 15kg.

Security Expert for AI Security at ZEISS Semiconductor Manufacturing Technology. ZEISS enables the production of smaller, more powerful, and more energy-efficient microchips.

Contract Manager for Procurement (m,w,d) will manage the definition and implementation of Airbus Defence & Space procurement contractual policy. Responsibilities include drafting and revising contracts, providing support and advice in Call for Tenders, and managing contracts in place. The successful candidate will have a university degree with a legal background, 6+ years of experience in contract negotiations, and native German fluency with professional English negotiation skills.

The CTO / Head of Group IT Strategy & Digital Transformation will define and execute the organization's technology and digital transformation strategy across a complex international environment. This role focuses on strategy, governance, organizational transformation, and ensuring technology investments support long-term business objectives.

Lead physical security operations across the UK and EMEA, managing a hybrid team and driving incident response, investigations, and crisis management. Develop and implement regional security strategies, policies, and standards.

Support strategic Target Costing projects as a Dual Student. Develop cost models and digitization tools, master digitization techniques across the end-to-end sourcing journey, and work on automation opportunities.

The Head of Germany Tax leads and oversees all tax matters for Castrol's operations across Continental Europe, the Middle East, Türkiye, and Africa. The role provides tax expertise, manages tax audits and disputes, and ensures compliance with regulatory requirements. The Head of Germany Tax will also contribute to the development and delivery of Castrol's tax strategy and governance framework.