freelance English-speaking jobs in Wuppertal

Research Scientist will contribute to the development of EUV lithography systems, focusing on strategies for precise optical component positioning. Responsibilities include physical modeling, simulation, system design, and specification development. Requires a strong background in physics, mathematics, or computer science, with expertise in optics, simulation, programming (Python), and algorithm development.

Expert in Receivables & Credit Management (m/f/d) for BU Professional. Responsible for end-to-end receivables and credit management, ensuring high transparency and data quality while reducing financial risks. Collaborates with Sales, Customer Service, and Key Account Management. Drives process improvements and manages credit insurance partnerships.

Category Manager Packaging will own the strategic development of the Packaging portfolio, driving growth, margin, innovation, and lifecycle performance.

Lead the IT function across PEAC Solutions Europe, overseeing five teams and 50+ employees. Own and optimize core SAP platforms, drive digital transformation initiatives, and ensure secure, compliant IT operations. Partner with executive management and stakeholders on IT investments, vendor management, and organizational development.

Drive growth for key retail accounts in Central Europe by managing strategic partnerships. Own the full customer lifecycle, from pipeline building to execution and long-term development. Lead and align cross-functional account teams to deliver on customer priorities.

Investment Manager/Director sought by Maxburg Capital Partners GmbH in Munich, Germany. Requires 0-10 years of experience in finance or professional services, investing experience, strong analytical and interpersonal skills, fluency in English and German.

Manage and analyze field trial data for corn products, ensuring quality and generating insights for product decisions. Plan and coordinate field trials, evaluate the corn product portfolio, and prepare portfolio meetings.

Working Student will integrate auxiliary systems into test vehicles, fabricate wiring harnesses, design mechanical prototypes, and perform diagnostics and repairs. Requires a major in Computer Science, Data Engineering, Electrical/Mechanical Engineering or comparable field, understanding of vehicle networks, and experience in modeling vehicle control actuators.

Provide administrative support to the Director of Berlin International School, managing schedules, correspondence, and events. Coordinate with the Leadership Team, administrative departments, and stakeholders. Support recruitment, professional development, and finance processes.

DevOps Engineer needed for a high-tech German engineering company. Responsibilities include CI/CD pipeline setup and optimization, GitLab workflow management, and automation of build, test, and deployment processes. Requires experience with .NET, C++, Windows and Linux systems, and automation tools.

Postdoctoral position (f/m/d) in cancer metabolism and metabolic plasticity during metastatic progression. The position is for 2 years with potential extension to 3 years. Responsibilities include conducting independent research, presenting findings, and supervising students. Applicants must have a PhD in a life science, experience with animal experiments, and strong knowledge of molecular biology and cell biology techniques.

Manage all aspects of travel for clients, providing support, consulting, and advising on travel solutions. Utilize GDS, particularly Sabre, and Freshdesk. Ensure client travel policies are adhered to and SLA's and KPI's are consistently met.

Site Reliability Engineer (SRE) / DevOps professional to automate operational processes, implement IaC solutions, and transform traditional Linux systems to Kubernetes. Requires 5+ years of experience in automation, configuration management, CI/CD pipelines, and container technologies. Must have strong programming skills (Python, Bash) and experience with cloud platforms (AWS, Azure, Google Cloud). German language proficiency (B2 level) is required.

Provide customer support for a global online community remotely from Greece. Fluency in German and English required. Relocation support available for EU candidates.

Leads More in Common's global and multi-country programs, developing, coordinating, and advancing initiatives that create value through cross-country collaboration. Responsibilities include program development and delivery, external representation and global partnerships, global fundraising, program quality and impact, knowledge management, and network participation. Requires a track record of designing and managing complex projects across multiple geographies, experience in external representation at a senior level, fluency in English and at least one other language, and significant leadership experience in an international organization.

As an IT Business Partner, you will translate business strategy into IT demand roadmaps, act as the primary IT contact for business leaders, and steer demand and portfolio management. You will also co-sponsor IT projects, analyze processes, and drive UAT and change management.

Senior Transformation Delivery Manager will lead and deliver high-priority transformation projects across the group, shaping the new Transformation Delivery Center of Excellence.

The International Tax Compact (ITC) Secretariat seeks an intern to support the Addis Tax Initiative (ATI) and the Network of Tax Organisations (NTO). The intern will implement and develop the ATI, organize events, assist in research and drafting, and support external communication.

PhD student position in Structural and Molecular Biology focusing on otoferlin-driven synaptic vesicle fusion at inner hair cell ribbon synapses. The successful candidate will use structural biology techniques like cryo-EM and AI-driven modeling to study otoferlin's interactions with membranes, SNARE proteins, and other fusion machinery.

Shape the global quality strategy for the Thermal Solutions Business Unit. Establish a unified quality framework across international manufacturing sites and drive the digital transformation of quality management processes.