freelance English-speaking jobs in Wuppertal

Asset Manager for Wind & Solar at a leading renewable energy platform. Responsibilities include commercial management, investment support, and asset performance monitoring. Requires 2+ years' experience in renewables and fluency in German and English.

Quality Control Technician will perform inspections and functional tests on components to verify compliance with specifications. Responsibilities include recording control evidence, contributing to protocol improvements, identifying and managing non-conformities, and maintaining equipment and workspace. Requires a university degree in a relevant field, excellent communication skills, and proficiency in English and French.

Drive Application Security strategy and embed Security-by-Design across international development teams. Define standards, conduct risk assessments, and integrate security tools into CI/CD processes.

Ensure high-quality trade invoicing services by serving as a contact for IT, supply chain, and customer service regarding O2C process SAP topics. Perform E2E monitoring and support conceptual development.

As an independent Content Moderator, manage written conversations across platforms, build customer relationships, and identify sales opportunities. Requires fluent English, self-discipline, and comfort with 18+ content in a remote setting.

Procurement Specialist for Facility & Construction Services drives the Sales Market procurement strategy. Responsibilities include securing a compliant supplier base, managing agreements, and supporting the full procurement cycle. Requires 3+ years of relevant experience.

Optical Packaging Engineer to shape photonic semiconductor packaging. This role involves taking ownership of optical assembly and packaging processes from concept to industrialization, working with advanced optical components.

Purchase Coordinator role involves processing orders, negotiating with suppliers, and conducting market research. Requires 3+ years in purchasing, fluent German/English, and proficiency in SAP and O365.

Own KoRo’s entire product and engineering organization, leading teams across D2C, ERP, integrations, and data. Set strategy, drive commercial outcomes, and ensure technical scalability across the full digital and operational system.

The Environmental Engineer will support site development and environmental compliance in the Berlin, Germany region. Responsibilities include environmental permit preparation, communication with authorities, and ensuring standards and policies support regulatory compliance. The engineer will also provide environmental guidance to regional operations teams, analyze environmental performance, and collaborate with internal and external stakeholders.

Lead, build, and sell ALAIKA's Data & AI practice. Shape the firm's Data & AI franchise and originate high-value mandates. Represent ALAIKA's Data & AI practice through industry speaking and publishing.

Senior technical expert in the Cyber Defense Center and CIRT. You will execute and support technical incident response, analysis, containment, and recovery, providing technical guidance and reporting.

Cofounder - Head of Risk & Actuarial to build the ISA underwriting model without credit bureau data. Responsibilities include setting rates, stress-testing portfolios, and structuring warehouse debt for this novel financial product.

Freelance lecturer to teach fundamental computer science knowledge with practical relevance, including user interfaces, business rules, web services, and quality constraints.

Lead global Security Architecture strategy and governance for a multinational organization. Own enterprise standards, embed security-by-design, and advise senior stakeholders on cloud, AI, and Zero Trust. Requires 10+ years in information security with leadership experience.

Drive sales growth as a (Senior) Sales Manager, developing and executing sales strategies across EMEA. Manage existing businesses, own commercial negotiations, and lead cross-functional teams to maximize market share.

Junior Product Manager for Outdoor Power Equipment. Oversee product development from concept to mass production, manage product lifecycle, and define European market requirements. Requires a Bachelor's degree.

Payroll Specialist to manage payroll processes, ensuring accurate and compliant operations. Responsibilities include data validation, coordinating with providers, and supporting Compensation & Benefits. Requires German payroll experience and fluency in German and English.

Technical Sales & Application Engineer collaborates with customers and sales to identify and provide technically feasible solutions. This role serves as the technical interface, managing documentation and analyzing customer feedback within international teams.

Experienced Mechanical Project Manager needed for major data centre projects. Oversee site safety, QA, programme, and costs. Lead teams, manage subcontractors, and ensure successful project close-out.