hr English-speaking jobs in Bielefeld

Postdoctoral researcher to develop attosecond science experiments using hard X-ray FEL radiation. Requires a PhD in physics or related field and research background in experimental attosecond science. Experience with X-ray techniques and/or FEL science is an asset.

Your tasks The tasks of the professorship include collaboration in the Bachelor's, Master's, teacher training, and doctoral degree programs as well as in the academic self-administration of the university. The German Sport University Cologne pursues the goal of promoting (inter-) disciplinary and cooperative research.

Sales Executive responsible for prospecting and cultivating relationships to grow fractional ownership in the German market. Requires 2-4 years' experience, fluency in German and English, and a business background.

General Manager, Germany, leads the consolidation of three brands (sevdesk, Shine invoicing, Kontist) into one market business. This role owns total German revenue, commercial budget, and market strategy for SME financial solutions.

Experienced Site Construction Manager needed to lead commercial and industrial mechanical projects in Germany. Manage site teams, subcontractors, and resources to ensure safe and timely project delivery.

Experienced commercial leader needed to drive sales strategy and growth across European markets, including Germany, Italy, and Turkey. Requires Mandarin fluency and a background in industrial equipment sales.

Strategy Consulting Intern (f/m/d) for 10+ weeks, October 2026 - March 2027. Analyze customer requirements, conduct market research, and assist with strategic planning. Must have at least four completed semesters of Bachelor studies, one internship in strategy consulting, and fluency in German and English.

Supply Chain & Procurement Manager responsible for SME and team leadership in purchasing, planning, production, and inventory management at the manufacturing site. Requires 5+ years in purchasing/planning, SAP experience, and fluency in English and German.

Lead the Global Cluster Regulatory organization, providing senior leadership for in-market regulatory strategy, execution, and registration delivery. This role partners with Cluster and Commercial Leadership to ensure compliant growth and market access.

Operations and Supply Chain Director for a luxury jewellery business. Oversee the end-to-end value chain including sourcing, production, inventory, and logistics. Requires experience in fine jewellery, strong commercial awareness, and German language capability.

Production Supervisor to lead and develop teams, ensuring timely execution of production programs. Responsibilities include managing workflows using Lean principles and maintaining compliance with quality and safety standards. Requires technical qualification and manufacturing leadership experience.

Lead a multi-site heavy and special transport operation across Germany. Drive operational excellence, efficiency, and performance. Develop and implement standardized processes and best practices.

As a Sales Engineer, you will develop and maintain customer relationships, analyze global markets, and implement sales strategies to drive revenue growth in key markets. You will provide technical expertise on dry vacuum technology and support the global sales organization.

Entrepreneurial General Manager to launch and scale a country operation for a leading AI company. Own commercial strategy, P&L, and build the local business from the ground up, leading enterprise sales and team development.

Executive Assistant supporting the VP of the Innovation Center Berlin. Responsibilities include managing schedules, communications, preparing materials, coordinating events, and handling confidential information. Requires a relevant degree and prior EA experience.

Security Expert in AI Security focuses on AI security governance, risk management, and policy development. Responsibilities include threat modeling, risk tracking for AI systems, and project management for securing LLMs. Requires IT/IT Security degree plus four years of experience.

Vice President role in Technology Investment Banking. Leads complex M&A, capital raising, and strategic advisory for tech firms. Requires 5-7 years of relevant experience and strong financial modeling skills.

Strategic advisor to senior Sales leadership, shaping commercial strategy through analytical rigor. Lead high-impact initiatives like Sales Compass and the Sales Operating System to drive revenue growth. Requires structured problem solving and execution.

Experienced Cash Manager needed to own cash flow and working capital for German and international clusters. Responsibilities include liquidity steering, AR/AP management, and treasury operations. Hands-on experience with payments or liquidity planning is key.

Lead all tax matters for Castrol across Continental Europe, the Middle East, Türkiye, and Africa, focusing on Germany. This role manages tax governance, compliance, risk, and relationships with fiscal authorities.