freelance English-speaking jobs in Wuppertal

Student assistant will refine and optimize calibration models, algorithms, and targets for 3D scanning technologies. The role involves working with experimental setups, capturing calibration datasets, and integrating the calibration pipeline across different scanning systems.

The Director Global Medical Affairs will lead medical strategy and serve as the primary point of contact for the global brand team. This role focuses on building and executing the medical plan for launch activities ex-USA.

Lead Developer & Architect to design and build user-friendly web applications using Vue, Node, and Laravel. Collaborate with the founding team on strategic decisions, lead development teams, and drive scalable architecture and technology standardization. Extensive experience with Vue, Node, and Laravel required. Proven experience in technical planning for large-scale applications and platforms. Familiarity with web protocols, documentation formats, and AI models.

Architect and build the data platform backbone, focusing on distributed computing stability and caching strategies. Design ETL pipelines and establish data lineage and metadata modeling infrastructure.

Lead and scale the Battery Control System (BCS) Product Team, developing reliable, high-performance systems for energy storage. Guide a cross-functional team of firmware, hardware, and testing experts. Foster a culture of clear ownership, pragmatic execution, and strong technical standards.

SMS group seeks a Technological Commissioning Manager to commission laser welding machines globally. Responsibilities include on-site service, process optimization, acceptance testing, and customer training.

The Jobsite Specialist installs industrial systems, ensuring quality and safety standards. Leads mechanical and electrical teams, coordinates subcontractors, and acts as the customer interface. Requires technical drawing interpretation, problem-solving, and fluency in German.

Leads global pricing strategy for the Fluid Conveyance division, improving revenue, profitability, and price realization. Develops pricing governance and frameworks to strengthen decision-making, discount control, and margin protection. Drives execution of price adjustments, owns list prices, discount structures, incentive models, and rebate logic. Provides functional leadership to divisional pricing teams.

Senior Software Engineer will develop production-ready software for sophisticated, distributed systems powering modern railway passenger information solutions. Responsibilities include designing software architecture, building secure software, and collaborating with system engineering experts.

The Global Process Owner Sales is responsible for designing, governing, and improving global sales administration processes. This role ensures standardized, efficient, and scalable processes across regions, enabling operational excellence and supporting commercial teams.

As a BI Specialist / Reporting & Dashboard Administrator, you will develop, maintain, and enhance BI dashboards and reports in Power BI. You will translate operational and business requirements into standardized reports and KPIs, ensuring data accuracy and transparency. You will collaborate with operational teams, providing support and troubleshooting for report usage.

Lead software development teams within the Agile Release Train (ART) Underwriting, focusing on underwriting applications. Drive the adoption and improvement of AI-supported development practices. Develop AI literacy and engineering excellence within teams.

Senior Technical Business Analyst to lead end-to-end initiatives in customer risk, fraud prevention, and underwriting. Partner with product, engineering, and data science teams to shape product strategy and drive system design. 5+ years of experience as a Technical Business Analyst in FinTech, payments, or financial services required.

Drives new OEM business and accelerates growth of Custom Photonics Solutions across Europe. Develops markets, customers, and projects, qualifies customer requirements, and delivers tailored photonics solutions. Acts as Key Account Manager for strategic customers and collaborates with cross-functional teams.

Senior Brand Manager (f/m/d) OTC will manage a brand across multiple countries and be independently responsible for channel strategies in the D-A-CH region. Responsibilities include managing operational marketing, leading market research projects, and expanding the brand-specific e-commerce strategy.

Manage and execute SAP RISE migration, leading internal and external project teams. Develop and steer technical migration strategy, ensuring adherence to timelines, budget, quality, and security standards.

As a Premium Support Specialist, you will be the primary point of contact for high-value customers, providing multi-channel support and ensuring ongoing success with Personio's platform. You will troubleshoot issues, educate customers on new features, and contribute to process improvements.

Senior Full Stack Developer to design and develop e-commerce solutions, specializing in modern, scalable frontends. Experience with Shopware 6, plugin and theme development, TypeScript, PHP, and AI tools required. Fluent German and English communication skills necessary.

Supports the Learning & Development team by creating presentations, updating learning materials, and coordinating workshops. Assists with internal events, communication, and documentation.

Leads a transformation project to replace the SysFM system with a modern CAFM system. Responsibilities include steering implementation, monitoring project progress, and coordinating with internal and external teams. Requires at least 3 years of project management and vendor management experience, proven experience as a Project Manager in SAP projects, and strong communication skills.