react English-speaking jobs in Wuppertal

Own the balance sheet and month-end close for German entities, coordinating with the Estonian group accounting team. Prepare financial statements, statutory reports, and manage external audits. Requires German accounting experience and fluent German.

Chemistry PhD required with depth in quantum and computational chemistry. Responsibilities include writing scientific prompts, building grading criteria, and calibrating tasks against AI models. Proficiency in Python, R, and Git/GitHub is necessary.

M&A Associate supporting the Technology group in a global investment bank. Responsibilities include supporting new business development and advisory engagements, evaluating financial statements, and analyzing acquisitions and divestitures. Requires advisory/Corporate Finance experience.

Lead the design of AI-powered business process solutions for clients in the DACH region. Architect AI-native solutions, map current-state operations, and co-create future-state architectures. Collaborate with stakeholders, product teams, and engineers to drive solution adoption.

Mid/Senior AI LLM Engineer to fine-tune and improve self-hosted open-weight LLMs for conversational products. Requires Python, PyTorch, Hugging Face, and experience with SFT, LoRA, and DPO.

Senior Comms Engineer/Architect to lead end-to-end development of Connectivity Systems. Requires expertise in Systems Engineering or Connectivity, Satcom, and architecture definition.

Electrician/Network Technician needed for high-performance audio, video, and IT network solutions. Requires electrical or communications engineering qualification and experience installing copper/fiber-optic networks.

Lead end-to-end pricing assessments and guide global affiliates on governance and processes. Develop pricing policies, drive data quality improvements, and support cross-market pricing strategy. Requires 5+ years of relevant experience.

Experienced Data Center Technician needed for contract work supporting mission-critical infrastructure. Responsibilities include hardware installation, structured cabling, server racking, and troubleshooting. Requires 2+ years of IT infrastructure experience.

Lead Solutions Engineer to partner with sales, driving prospective and expansive deals. Requires 6+ years in a presales or technical sales role, focusing on technical value and relationship building.

Operational Resilience & Recovery Lead to establish governance, strategy, and standards for critical systems and data within a new cloud-first IT organization. This role combines strategic leadership and stakeholder management across various technology teams.

Multilingual Customer Support Representatives needed for roles in Portugal, Spain, Greece, Malta, Germany, Poland, Belgium, Romania, Bulgaria, and France. Support customers via phone, chat, and email in English and one additional EU language.

Sr Principal Functional Consultant, oCHRO Architect, requires 10+ years in HCM software, including 5+ in implementation consulting. Must lead end-to-end HCM solution architecture and guide design decisions, requiring fluency in German and English.

Area Manager (Manager II, Operations) leads site operations to ensure efficient order fulfillment. Responsibilities include driving safety and quality culture, analyzing performance, and overseeing process improvements. Requires people management and data analysis experience.

Generative AI Developer role within an HPC team. Design AI solutions for customer use cases, build prototypes, and integrate novel AI into service portfolios. Requires strong Python, Linux, and generative AI knowledge.

The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world's leading technology providers to accelerate the delivery of tomorrow's electronic devices.

Student Assistant for VIT-IMC/Unity Development. Develop AR/VR applications and implement algorithms for 3D visualization. Requires C#, Python, C++, and Unity3D knowledge.

Head of Medical Affairs, DACH, manages medical affairs for key international markets. Responsibilities include developing strategic plans, engaging Key Opinion Leaders, and supporting medical education for oncology products. Requires a medical degree or PhD and industry experience.

Account Manager Medical Microsurgery drives sales of advanced medical solutions to hospitals and clinics in Southern Germany. This role requires strategic selling experience in the medical industry, fluency in German and English, and a Bachelor's degree in a scientific or engineering field.

Research Position focusing on stochastic control and stochastic games in economics and finance. Requires a doctorate in Mathematics or Mathematical Finance and strong analytical skills.