ruby English-speaking jobs in Düsseldorf

Head of Product & Merchandising owns product assortment, pricing, and buying strategy across all channels. This role drives commercial success by managing stock performance and translating data into actionable product decisions.

PhD student position investigating Tm-based solid-state lasers at 820 nm. Research focuses on spectroscopic and laser properties of Tm3+-doped crystalline fluoride and oxide gain materials. Requires MSc in physics, optical engineering, or related field.

Senior Conversion Design Analyst who frames user problems using qualitative and quantitative data. You will design, build, and analyze experiments to drive user growth, working closely with product and engineering teams.

Chief of Staff supports the CEO and CCO, providing structure and rigor to the leadership agenda. Responsibilities include owning operating rhythm, managing governance, and driving strategic Growth and AI initiatives. Requires 2-3 years in top-tier consulting.

Forward Deployed Engineer to own customer technical journeys, from problem understanding to production integration. Drive deployments, demonstrate value, and shape product input using hands-on audio/Voice AI expertise.

Internship supporting AI transformation within the M&A team. Responsibilities include building and testing AI agents, applying AI to unstructured data, and optimizing M&A processes. Requires strong AI tool experience and business understanding.

Drive the strategic account management program in Germany, focusing on sustainable growth within key hospital accounts. Own account strategy, orchestrate cross-functional resources, and exceed sales and margin targets.

Manager Merchandising Originals FTW DTC CS - Europe prepares channel assortments and contributes to OTB planning. Responsibilities include executing in-season trading decisions, managing inventory, and analyzing sales data. Requires relevant experience and a university degree in business.

This role involves managing general contractors, coordinating subcontractors, monitoring project progress, and reporting to senior leadership. The ideal candidate will have expertise in technical construction systems, contract administration under VOB/B and German construction law, and exceptional organizational and communication skills. Fluency in German and English is required.

Motivated tutors are sought to provide private lessons in Business, Management, Economics, Marketing, and Finance. Knowledge in these fields is required, but no prior teaching experience is necessary.

Advanced Software Engineer in Cybersecurity to manage the security of Windows-based medical devices across the product lifecycle. Responsibilities include threat modeling, risk assessment, and implementing technical security controls while adhering to standards.

Lead the German customs organization strategically and operationally, owning P&L. Responsibilities include ensuring legal compliance, growing external customs services, and managing customs clearance for the company. Requires extensive experience in customs and foreign trade law.

Experienced Customer Engineer for Semiconductor Equipment. Serve as technical expert, performing maintenance, troubleshooting complex issues, and maximizing tool performance for advanced manufacturing operations.

Credit Manager role ensuring timely invoice payment and mitigating financial risks from customer insolvencies. Responsibilities include managing customer credit, analyzing payment data, and handling collections.

Compulsory Internship in Energy Management & Efficiency starting January 2027. Support projects related to ISO 50001, energy consumption analysis, and implementing energy-saving opportunities. Requires a relevant bachelor's degree.

Experienced Program Manager needed to lead the execution of a global VMware Exit and datacenter modernization transformation. Requires expertise in large-scale infrastructure programs, cloud migration, and managing international stakeholders. Fluent German and English are mandatory.

Lead a private equity-backed healthcare software company through growth. This entrepreneurial role involves driving strategy, P&L, product development, and AI implementation to prepare for a potential exit. Fluency in German and good English is essential.

Experienced Solution Consultant needed for Compliance & Ethics software. Advise multinational organizations, lead technical discovery, deliver product demos, and partner with Sales. Requires 5+ years in compliance/ethics and fluency in German.

Own and close high-value enterprise opportunities across Europe (excluding DACH Region) for a leading Legal AI company. Translate customer needs into value by connecting Legartis capabilities to real outcomes. Build and execute strategic account plans, lead demos, and partner cross-functionally to win deals.

Biology Teacher needed with 2-10 years of high school teaching experience. Responsibilities include developing engaging lesson plans, assessing student performance, and fostering a positive learning environment. Skills required are Data Analysis, Classroom Management, Curriculum Development, Scientific Writing, and Student assessment.