freelance English-speaking jobs in Wuppertal

Design and implement scalable AI features for an intelligent supply chain operating system. Lead MLOps processes, ensuring reliable, secure, and scalable AI systems. Collaborate with engineering and product teams to integrate machine learning models and data pipelines.

The IT System Administrator provides technical support to employees, troubleshooting hardware/software issues and managing IT assets. Responsibilities include installing and configuring new equipment, monitoring existing systems, and ensuring compliance with security policies. The role also involves supporting software deployment, user accounts, and onboarding/offboarding processes.

The Friedrich Schiller University Jena seeks a Doctoral Researcher in Metabolomics to develop an experimental platform for untargeted metabolomics focused on monitoring metabolic changes induced by viral infections. The position is part-time (65%, 26 hours per week) and fixed-term until June 30, 2030.

Senior Security Engineer designs, implements, and matures security architecture across various domains. Partners with teams to review, harden, and implement security controls. Oversees vulnerability management, penetration tests, and threat hunting. Mentors SOC analysts and maintains documentation. Requires a Bachelor's degree in a related field, 5+ years of experience, and strong knowledge of security frameworks and tools.

Manage project costs, ensure compliance with contractual conditions, and collaborate with site management to develop and execute project plans.

Experienced HR Manager needed for a growing international EPC contractor in Germany. Lead HR for a 300-person operation, coordinating site-based HR officers across three active construction/oil & gas projects. Proven HR experience in construction, ideally oil & gas, required.

Project Manager to lead full project lifecycle from initiation to handover. Manage project scope, schedule, budget, and communication. Requires 3+ years of project management experience, logistics knowledge, and fluency in English. Must be able to travel extensively across EMEA.

Senior M&A Analyst to support the execution of acquisitions across the full lifecycle, from origination to completion. Responsibilities include target assessment, financial modeling, due diligence, and deal negotiation. Requires a Bachelor's or Master's degree in a related field, experience in M&A, and fluency in German and English.

Designs Engineered to Order centrifugal products, ensuring designs meet customer specifications, technology requirements, and government codes. Provides technical support to sales, service, and product management teams.

Sales and Market Development Manager responsible for sales targets, business development, and customer relationship management within a defined region. Requires a bachelor's or master's degree in a relevant field and several years of experience in international sales or business development within the construction equipment industry.

Project Developer supports the development of renewable energy projects, primarily onshore wind, through permitting, coordination, and technical groundwork.

CSL Plasma seeks a GxP-Auditor to perform qualification audits at plasma suppliers/service providers in the EMEA region. Responsibilities include evaluating audit results, performing risk analyses, and assisting in the development of audit systems. Requires excellent Italian or French, English, and German language skills, 2-3 years of auditing experience, and knowledge of quality management and GxP/DIN ISO.

Senior Backend Engineer will architect, enhance, and streamline backend systems, focusing on scalability, CI/CD pipelines, and monitoring. Expertise in Python, NodeJS, or C++ is required, along with a strong track record in production environments.

Lead the legal function for a growing clean energy company, providing strategic and commercial legal support across project development, contracts, financing, and compliance.

The German Primate Center seeks a PhD Candidate in Computer Vision to support scientific research by implementing data science approaches.

Provides administrative, logistical, and operational support to a German office of a multinational company. Manages office operations, mail, government affairs, visitor support, expense reimbursement, and employee assistance. Requires fluency in German, English, and Mandarin Chinese.

This 18-month Young Graduate Program accelerates development in aseptic fill & finish manufacturing and sterility assurance. You will gain hands-on experience in aseptic filling operations, learn about sterile manufacturing environments, and contribute to data-driven improvements in process robustness and compliance.

We are seeking Civil Construction Teams or individual specialists to join our expanding fiber-optic network infrastructure deployment. Roles include Excavator/Machine Operators and Truck Drivers. Responsibilities include trenching, cable laying, surface restoration, and site setup. Experience in civil engineering, road construction, or cable line construction is required. Valid driver's licenses and machinery licenses are necessary for respective roles. Basic German communication skills are required.

Lead FZS's global efforts to combat illegal gold mining in and around protected areas by driving policy change, influencing global markets, and strengthening international partnerships.

Stress Engineer will produce analyses and stress reports for all aircraft areas, ensuring compliance with certification standards. Collaborate with design teams, manage suppliers, and develop stress analysis tools. Requires a Master's degree in aeronautical/mechanical engineering, 5+ years experience, and expertise in stress analysis techniques, composite structures, and MSC Nastran/Patran.