ruby English-speaking jobs in Düsseldorf

Provide customer service to French-speaking clients, consumers, and third parties via multiple channels. Resolve customer issues, document interactions, and collaborate with colleagues. Must be fluent in French and English, possess strong communication and organizational skills, and have experience with ticketing systems or CRM platforms.

Publicis Re:Sources seeks a Tax Director for the DACH region to manage tax compliance, reporting, and advisory activities across Germany, Austria, and Switzerland. The role covers direct taxes, VAT, transfer pricing, and serves as a key point of contact for the business, finance, external advisors, and tax authorities.

Lead applied AI research in LLMs, agent frameworks, and document understanding. Drive productization of AI solutions and design AI pipelines for automation. Collaborate with product, customer success, and engineering teams. Mentor and grow an AI team.

Develop and manage international key accounts in the data center segment. Build and maintain long-term customer relationships at the C-suite level. Co-develop and implement the central segment strategy for data centers.

The Max Planck Institute for Marine Microbiology seeks a Scientific Programmer to develop, integrate, and optimize a high-resolution ocean biogeochemical modeling framework. The successful candidate will design and conduct experiments, analyze simulations, and contribute to publications and conference presentations.

Amazon is seeking Lagermitarbeiter (m/w/d) to receive, put away, and prepare customer orders. Duties include operating powered industrial trucks, troubleshooting problems, and ensuring product quality. Must be 18 years or older, proficient in German and/or English/Arabic, and able to lift up to 23kg.

Leads the SHE strategy for Europe, ensuring compliance, risk management, and cultural transformation across industrial assets and offices. Develops and executes regional SHE programs, advises senior leaders, and oversees operational excellence.

Principal Business Consultant focused on Quality Control will lead complex global projects, drive business development for Quality Control, and manage consulting teams.

Client Accountant to coordinate financial matters for international clients, providing bookkeeping, reporting, and audit coordination support.

Senior Security Architect needed to design, implement, and improve enterprise security architectures and strategies. Experience in IT and OT security, risk assessments, and security roadmaps required.

Assistant Corner Manager supports sales targets, manages employees, and ensures excellent customer service. Responsibilities include staff training, visual merchandising, inventory management, and reporting. Requires 2-3 years of retail experience, preferably in beauty, with initial management experience.

The Research Infrastructure Specialist (Postdoc) for Trusted Research Environments will translate TRE governance, research, and data-access requirements into technical specifications. The role involves coordinating between researchers, IT specialists, data curators, legal/data protection experts, and user communities. Responsibilities include designing, testing, and documenting secure TRE workflows and supporting the operational implementation of legal requirements in TRE processes.

Develop and maintain scalable Salesforce solutions using Apex, Lightning Web Components, SOQL/SOSL, APIs, and integrations. Provide expert guidance on Salesforce topics, ensuring adherence to coding standards and quality assurance.

Leads the global Procurement organization, defining and implementing procurement strategy, standards, and guidelines for Yunex Traffic. Manages global Procurement teams and acts as an advisor to Yunex Traffic Executives on procurement-related issues.

Working Student supports marketing efforts for educational programs focused on entrepreneurship and technology. Responsibilities include content creation, social media management, event promotion, and program operations. Strong communication skills, creativity, and a passion for innovation are essential.

Manage daily customer communication for after sales services in North Africa. Prepare service and maintenance quotations, support tenders, and drive process optimization.

Novastone Capital Advisors seeks motivated professionals to acquire and lead a small to medium-sized enterprise in Germany. Successful candidates will manage the acquisition process, develop business strategy, and drive growth. Must have 10+ years of professional experience, 5+ years in leadership roles, and 10+ years of experience running and growing businesses in Germany.

Supports the R&D Chemistry Team with synthesis and analysis. Manufactures and packages chemical kits, including labeling. Operates and monitors the para-hydrogen production system. Documents all production and packaging processes.

Digital Marketing Lead will develop and execute a data-driven digital marketing strategy for the ProCredit group. Responsibilities include driving traffic and conversions, managing PPC campaigns, conducting market research, and collaborating with teams to deliver results.

Take end-to-end ownership of cloud-native platforms and deliver reliable e-mobility services. Develop, provision, and operate AWS cloud application environments using Terraform. Design and implement CI/CD pipelines and automate technical processes. Monitor cloud accounts, infrastructure, and applications using observability tools. Participate in on-call rotations, respond to incidents, and troubleshoot complex issues.