freelance English-speaking jobs in Wuppertal

Postdoctoral fellow sought to design and synthesize novel reagents for next generation sequencing. Requires PhD in (bio)organic chemistry, experience with oligonucleotide-conjugate synthesis, and a publication record.

Lead the technical performance strategy for DHL's European aircraft fleet, ensuring safety, reliability, and operational efficiency. Manage maintenance planning, supplier relationships, and budget oversight. Drive performance improvement initiatives and ensure compliance with EASA regulations.

Coordinate and execute C&C Extended Reality (XR) activities for Next Generation Aircraft. Develop and visualize immersive scenes in VR/AR software, manage XR studies, and create high-end visual content.

As a Customer Support Engineer, you will provide on-site installations, service, and maintenance for semiconductor manufacturing equipment. You will troubleshoot malfunctions, analyze error influences, and act as a ZEISS brand ambassador.

The German Pension Insurance Bavaria South seeks a COBOL Software Developer to plan, design, develop, and maintain software solutions within the existing COBOL system. The role involves testing, quality assurance, and documentation, with future participation in a nationwide project transitioning to a new system.

The Head of Infrastructure & Cloud Services leads the design, implementation, and lifecycle management of enterprise infrastructure platforms, ensuring secure, resilient, and scalable services aligned with business needs.

PhD student to conduct research in radiobiology at the intersection of proton therapy and magnetic resonance imaging. The project investigates the biological effects of proton beams in the magnetic field of an MR scanner.

Project Buyer for Electrical, Electronic and Electromechanical (EEE) components. Manages procurement activities for development, qualification and flight models, including RFQs, negotiations, and supplier management. Requires technical procurement experience, ideally in electronics, aerospace, or defense.

AI Artist (Generative AI Game Artist) to create in-game and marketing assets using AI-assisted workflows. Responsibilities include building and maintaining image and video generation pipelines, combining AI outputs with traditional tools, and collaborating with the art team. Requires game art background, experience with AI-driven visual production, and proficiency in ComfyUI, Midjourney, ChatGPT/Claude/Gemini, Illustrator, Photoshop, and After Effects.

Beauty Advisor needed for part-time position at Sephora Oberhausen. Responsibilities include customer service, stock management, visual merchandising, and supporting beauty classes. Experience in retail, customer service, and the beauty industry is preferred.

This fixed-term contract (up to 24 months, with potential for permanence) involves operating equipment, ensuring safety, and maintaining quality standards. Successful candidates will have a strong understanding of manufacturing processes, attention to detail, and the ability to work effectively in a team. PIV experience is beneficial but not required.

Senior AI Engineer will design and build end-to-end AI/ML solutions for enterprise clients. Experience with cloud platforms (AWS, Azure, or GCP), Databricks, Snowflake, and AI architecture is required.

Design Engineer for Mission Management Systems (NH90) at Airbus Helicopters Deutschland GmbH. Develop operational concepts, define functional chains, and specify functions and avionics systems.

Support the People Business Partner team in Heidenheim with administrative, organizational, and conceptual People & Culture tasks. Contribute to content design and development of events and initiatives aimed at enhancing leadership competencies. Prepare presentations, conduct data analyses, and create statistics.

Leads and manages commissioning and testing activities for photovoltaic (PV) projects, including grid connection and Battery Energy Storage Systems (BESS). Plans, coordinates, and documents the commissioning process, collaborating with subcontractors and stakeholders. Acts as the Responsible Electrical Person, ensuring electrical safety and compliance with standards.

Design and develop the client's Bank app for Android and iOS. Plan and design API interfaces and contribute to the technical architecture. Optimize app performance and user experience. Work with product owners, designers, and backend developers.

Activity Leaders deliver engaging activities and excursions to international students, ensuring a meaningful and adventurous camp experience. Must have experience working with children, some German proficiency (B1-B2 minimum), fluency in English, and high energy.

Support the Influencer Marketing France Team in influencer management, including influencer acquisition, collaboration management, performance evaluation, and daily business tasks.

Provides analytical insights to optimize sourcing activities. Combines business and supply chain knowledge with analytical skills to support category teams and management. Analyzes data to identify trends and support negotiation efforts.

Develop aviation strategy for airlines, airports, or MROs. Design end-to-end aviation processes and optimize MRO operations.