freelance English-speaking jobs in Wuppertal

Contract Industrial Engineer needed for 3-4 week remote project. Collaborate with AI research teams to improve model outputs and diagnose issues in machine learning systems. Must have 4+ years experience and excellent written communication skills.

Leads the certification and approvals of devices across four Business Units, focusing on diamond drilling, dust management, measuring and fastening tools, robotics, wireless, and IT products. Drives strategic regulatory management, including sustainability regulations and standardization. Manages and develops a team, collaborating with stakeholders to ensure efficient implementation of regulatory requirements.

Lab Manager responsible for formulation development of animal health products. Requires 3+ years experience in pharmaceutical industry with expertise in oral dosage form development and process scale-up. Must have strong knowledge of GMP and regulatory guidelines. Fluency in German and English required.

The Asset Optimization Manager will manage the end-to-end lifecycle of contracted assets, from evaluation and pricing to execution and performance monitoring. Responsibilities include contributing to desk PnL through trading strategies, working with the Origination team on business development, and developing hedging strategies. The role requires a proven track record in energy trading, asset optimization, or structured energy products, a detailed understanding of European energy markets, and strong quantitative and analytical skills.

Full-Stack TypeScript Developer to maintain and develop React applications (Next.js & Vite) and backend services. Build new features with TypeScript, write unit and integration tests, and collaborate with designers, backend developers, and product managers.

PhD candidate to design and realize a STED microscope for materials science applications. Develop acquisition protocols and data analysis methods. Collaborate with project partners and present research results.

This 2-year PostDoc position at the Climate Service Center Germany focuses on co-developing and co-testing backcasting tools with local communities in the Amazonian and Landkreis Harburg regions to define climate-resilient futures. The role also involves evaluating and monitoring digital climate service tools.

Lead AI Engineer to provide technical leadership for AI-driven products and platforms. Requires proficiency in LLMs, Agentic AI, deep learning, NLP, and predictive analytics. Experience with LLM orchestration frameworks, model training frameworks, and AI/ML platform technologies is essential. Proven experience leading development teams and experience with cloud platforms (Azure preferred) is required.

Leads the German tax compliance function for direct and indirect taxes, including preparation, review, and submission of tax filings. Oversees tax payments, accounts, reconciliations, and reporting. Establishes and maintains a German tax control framework, manages audits, and handles tax controversy matters.

RAYLASE GmbH seeks a results-driven Sales Manager to develop and manage the South Korean market for laser material processing. The role involves identifying and acquiring customers, building key account relationships, and providing technical sales support.

Supports the development of financial concepts and strategy, drives execution of finance initiatives, and coordinates cross-functional projects. Prepares materials for Board, Supervisory Board, and investor relations. Acts as an interface between the CFO and key stakeholders.

Private Markets Data Expert and Owner role at CEPRES. Act as subject matter expert for private market data and client advocate, ensuring data supports high-quality investment research and decision-making. Own and oversee the end-to-end market data lifecycle, from ingestion through validation to investment-grade outputs. Drive data governance standards and monitor data quality. Serve as private markets SME during product design, enhancement, and implementation. Improve transparency, efficiency, and scalability across market data workflows.

ERP Specialist needed for IT department. Troubleshoot and resolve ERP and application issues, ensure system stability, and collaborate with business units. Lead and manage ERP projects, monitor vendors, and support SOX, GDPR, and security compliance. Minimum 5 years IT experience with strong ERP support, degree in related field, and technical expertise in ERP, MRP, BI, and CRM systems.

The German Cancer Research Center (DKFZ) seeks an IT Security Specialist to define security standards for two data infrastructure projects: the Data Space Project and the German Human Genome-Phenome Archive (GHGA). The role involves analyzing IT security operations, implementing risk management frameworks, and ensuring compliance with modern standards.

Senior Process Engineer to lead the integration of electrochemical oxidation (ECO) technology into scalable wastewater treatment solutions. Responsibilities include process design, pilot testing, scale-up, and ensuring safety and regulatory compliance. Requires a minimum MSc in Chemical, Environmental, or Water Engineering and 7-10+ years of experience in process engineering.

As Buying Lead Adults, you will build profitable product assortments aligned with the Brand Strategy. You will lead the strategic vision and plan for a Business Unit, manage the product lifecycle, and collaborate with cross-functional teams. You will analyze data to identify revenue growth opportunities and present findings to stakeholders.

Provides legal counsel to the Management Board and Supervisory Board on corporate and capital markets law matters. Supports capital markets communication, financing measures, and compliance with reporting obligations. Drafts and updates corporate governance documents and policies.

For over 90 years, we have been unlocking the secrets of nature by combining the knowledge of traditional medicinal plant therapy with the forward-looking results of scientific research. "Phytoneering" is the formula of our success with which we have been on a growth course for years. In this way, we open up new markets with innovative, highly effective herbal medicines.

Serves as technical contact for applications on Windows and Linux platforms. Responsible for installation, configuration, operation, and maintenance of applications. Leads IT projects, designs IT architectures, and ensures compliance with standards.

Lead and deliver incident response engagements for clients, managing investigations, containment, and remediation. Provide expert guidance and recommendations to enhance security posture.