freelance English-speaking jobs in Wuppertal

Senior Environmental Sustainability Manager will drive the implementation of environmental management requirements across the organization. This role supports countries in managing environmental risks, compliance obligations, and mitigation programs. The position serves as a key link between Group Sustainability and the global network of environmental professionals.

Gain professional experience in product development for medical devices. Conduct product testing, support technical documentation, and assist with risk assessments.

We are working for a global technology and digital transformation company that partners with leading telecommunications enterprises across Europe to modernize their business platforms and IT landscapes.

Sourcing Specialist executes source-to-contract processes, initially supporting project procurement for a new laboratory and office building. Responsibilities include leading procurement projects, negotiating contracts, and ensuring compliance with regulations.

Deliver groceries to customers efficiently by e-scooter or e-bike, exceeding delivery targets. Must be at least 18 years old with a valid work permit, driving license, and smartphone with mobile data access.

Plant Manager — Logistics & Manufacturing | Eastern Germany Confidential Search | EGI Value Chain We are conducting a confidential search on behalf of a world-leading business for a Site Manager at their logistics and manufacturing facility in Eastern Germany (Thuringia region).

The European Inside Sales Team Leader, Biopharma will lead a team of Scientific Inside Sales Representatives to drive lead generation and opportunity creation across all Biopharma product portfolios. The role requires a proven track record of success in capital equipment, consumables, and service contract sales within the Biotech/Biopharma industry. The candidate will be responsible for building, training, leading, and managing a high-performing team, collaborating with Sales, Marketing, Applications, and Product Management teams, and ensuring the consistent use of the right activity trackers, performance metrics, and reporting tools.

Senior ASIC Post-Silicon Validation Engineer will develop and align test plans and test solutions for ASICs designed for the Advantest V93000 Semiconductor Test System. Responsibilities include testing and characterizing functionality and performance of ASICs, scoping, designing, and ensuring the technical validity of test solutions, and supporting production implementation.

ParityQC seeks a Quantum Error Correction Engineer to develop pioneering algorithms for fault-tolerant quantum computing. The role involves designing and implementing strategies leveraging error correction codes and noise-biased hardware platforms.

The organisation offers a collaborative and international environment, with strong focus on sustainable development and continuous improvement. The EHS Program Manager is responsible for the planning, coordination, and execution of Environment, Health & Safety programmes across local and global operations.

Provides direction, specialist knowledge, and pre-sales support for N-able technology. Develops business value propositions and works with cross-functional teams to spec new products and features. Builds complex proof of concept solutions and assists sales reps in offering product solutions. Troubleshoots technical issues and provides guidance to junior staff.

We continually educate ourselves about new merchandise collections, cultures and the evolving luxury market. Our respect and love for the brand creates a workplace like no other. We expect our employees to deliver the Tiffany Experience to each and every customer and Tiffany is committed to creating an organization that recognizes and rewards excellence in service of this promise.

Senior Safety Engineer will support safety-related engineering activities across the project lifecycle for railway projects. Responsibilities include developing safety documentation, performing safety analyses, and supporting ETCS projects from concept through implementation. Requires a degree in a relevant field, proven experience in railway ETCS signaling projects, and strong knowledge of CENELEC safety standards.

Internship in Coating Development & Analysis. Work with an expert team to investigate coating lifetime stability using analytical methods. Conduct tests, document, analyze, and present results. Contribute to test plan refinement.

Master thesis focusing on modeling multiuser detection in asynchronous random access systems using spread spectrum techniques. The objective is to develop an Approximate Message Passing framework to reduce computational complexity while maintaining near-optimal performance.

Service technician for maritime automation and control systems. Commissioning, inspections, maintenance, technical support, and training. Requires technical training, experience in automation, and strong travel flexibility.

German-Speaking Financial Customer Service Agent About Mercier Consultancy Group Mercier Consultancy Group is one of Europe's most respected international recruitment and business process outsourcing firms, renowned for connecting exceptional multilingual talent with world-class organisations across a diverse range of industries.

IU International University seeks a part-time Professor of Operations Research to teach on-campus in Cologne starting October 1st, 2026. The position is initially for two years. Applicants must have a doctoral degree in Operations Research or a related field, at least five years of professional experience including three years outside of academia, and expertise in Operations Management and Business Mathematics.

About Chaskis Chaskis specializes in the management and operation of delivery rider fleets for leading delivery platforms. As part of our expansion in Germany through our partnership with Uber, we are looking for an experienced HR Manager to support the launch and day-to-day management of our new delivery rider fleet in Stuttgart.

Data Engineer to integrate data sources, design data pipelines, and evolve a scalable data platform. Translate business requirements into data models and collaborate with stakeholders. Operate and stabilize pipelines, investigate incidents, and resolve data quality issues. Maintain and modernize SQL Server environment.