ruby English-speaking jobs in Düsseldorf

Senior Business Development Manager to acquire new customers and develop strategic partnerships in the biotech CDMO field. Requires life sciences studies, years of BD experience with a strong track record, and excellent negotiation skills.

Develops the Purchasing & Procurement Domain according to the Area Consulting CoE Sustainable Enterprise and Corporate IT Strategy. Translates business needs into scalable, secure, and value-driven IT solutions. Acts as advisor, guiding business units through ideation, process optimization, and technology scouting. Ensures adherence to the Enterprise Architecture Management (EAM) framework.

Director Global Quality will define and drive the global quality strategy for Thermal Solutions. This role establishes unified quality frameworks, drives digital transformation, and ensures high product quality across international operations.

Our teams empower innovation enthusiasts to take entrepreneurial action. Together with start-ups and established companies, we drive tech start-ups forward - from the first idea to market leadership.

Research Assistant at the Chair of Digital Security. Responsibilities include independent cybersecurity research, contributing to projects in digital forensics and intrusion detection, and supporting teaching. Requires a Master's in a related field and strong programming skills.

Manufacturing Systems Engineer to design and build systems, processes, and flows for scaling materials platforms from lab to industrial production. Requires 5+ years of experience in scaling manufacturing systems and a degree in mechanical or chemical engineering.

Receptionist for a global investment firm. Responsibilities include welcoming clients, managing communications, and supporting office operations like meeting logistics. Requires fluent German and advanced English.

Professional Front Desk & Office Coordinator to be the first point of contact. Responsibilities include greeting visitors, managing correspondence, coordinating office logistics, and supporting daily operations. Requires excellent interpersonal skills and fluent English.

Senior IT Service Delivery Manager to lead large-scale managed services for global clients. Responsibilities include ensuring service quality, operational excellence, and driving AI-led service transformation. Requires extensive experience in IT managed services and ITIL processes.

Define, implement, and develop global standards and governance principles for tax-related reporting. Embed compliance requirements across tax, legal, and financial reporting processes. Requires a university degree and relevant experience in project management and international tax law.

Hands-on Automation Engineer role for a university student. Design and maintain automation workflows using tools like n8n, Make, or Zapier. Integrate APIs and develop internal tools. Requires practical experience with automation platforms and software engineering fundamentals.

Procurement Specialist for Facility & Construction Services drives Sales Market procurement strategy. Responsibilities include securing supplier bases, managing agreements, and ensuring compliance with global standards. Requires 3+ years of procurement experience.

Security Partner advises business leaders by aligning security strategy with product development and cyber risk. Responsibilities include leading risk assessments and maintaining security risk views. Requires 10+ years in information security and knowledge of frameworks like ISO 27001 and GDPR.

Postdoctoral Researcher needed for Biomedical Semantics, Ontologies, and LLM Integration at DKFZ. Develop ontologies and knowledge graphs to integrate biomedical data with LLM systems. Requires life science/CS background and experience with semantic web technologies.

Develop and optimize quantitative trading strategies for flexible assets across energy markets. Build predictive models for forecasting and signal identification. Requires MSc/PhD and 3+ years applying data science in energy or commodity trading.

Manufacturing Process Technician needed to define, document, and maintain production processes. Support new product introduction, optimize dispensing paths, and analyze test equipment data. Requires vocational training or bachelor's degree in a technical field and experience in factory automation, assembly, or test equipment engineering.

Experienced Freelance Commissioning Manager needed for utility-scale BESS projects in Germany. Lead commissioning, testing, and energization of energy storage projects. Requires proven experience with BESS, MV/HV electrical systems, and stakeholder coordination.

Lead and manage the technical service department for Maritime Automation, overseeing Service Engineers and coordinating operations. Requires experience in Maritime Automation or Automation Technology, strong German and English skills, and leadership ability.

Regional Service Manager develops local business plans and drives growth within the service business. This role involves coaching teams, managing service partners, and targeting key accounts. A Bachelor's degree and fluency in German and English are required.

We are looking for a motivated, communicative, and well-organized HR Management Intern to join our Berlin team. You will support recruitment, employer branding, applicant management, people operations, and employee experience. You will gain direct insight into how an internation