react English-speaking jobs in Wuppertal

Postdoctoral researcher to analyze CMS Run 3 data, focusing on searches for new particles. Responsibilities include algorithm selection, event reconstruction, theoretical interpretation, software contributions, and student supervision. Requires a doctoral degree in experimental particle physics, data analysis experience, and strong software skills.

The Fraunhofer Institute for Secure Information Technology SIT seeks an IT Specialist in Client Management to optimize client management processes, support application servers, and provide first- and second-level support for client systems.

Transaction and Valuation Manager (f/m/d) will lead valuation workstreams, prepare performance analysis, and model financial scenarios for E.ON Group decisions.

IT System Administrator responsible for planning, implementing, and administering IT infrastructures in Windows Server environments. Supports and develops Microsoft 365 environments for SME clients. Requires 3+ years of experience and business-level German proficiency.

Lead the legal function of a growing international technology company. Provide legal, commercial, and strategic advice to the executive team and Board. Manage complex transactions, agreements, and risk. Develop legal processes and lead a mid-sized legal team. German-qualified lawyer with significant in-house or private practice experience required.

Postdoctoral position in Computational Imaging and cryo-electron tomography. Develop computational methods for deformation-aware reconstruction in cryo-ET. Focus on modeling and correcting local, non-rigid deformations in tilt-series data.

As an Investment Valuation Manager / Associate, you will provide valuation expertise for development projects, transactions, and operational assets in the renewable energy sector. You will support investment decisions, refine valuation methodologies, and ensure the quality of financial models.

The Chief Information Security Officer (CISO) will manage company-wide information security, particularly in the KRITIS environment. The CISO will report directly to the Executive Board and develop and implement a company-wide security and risk strategy.

Lead System Architect to design, architect, and deliver enterprise-scale Pega solutions. Provide technical leadership, conduct design and code reviews, and ensure application scalability, performance, and security. Fluent German and English required.

Sales Development Representative (SDR) will build new business relationships, connecting with potential clients and targeting those with opportunities to work with Docusign. Responsibilities include achieving sales qualified opportunity quotas, contacting prospective businesses, educating them on Docusign's offerings, and providing qualified leads for Account Executives.

Supports store operations including administration, inventory control, customer service, and shipping/receiving. Manages merchandise, processes sales orders, and assists with store events. Requires 2-3 years of retail experience, proficiency in Microsoft Word and Excel, and fluency in German and English.

A fully funded 4-year postdoctoral position is available at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany. The position is focused on social cognition and how spatial coding principles extend to social cognition and belief formation. Applicants should have a PhD in a relevant field and expertise in cognitive neuroscience methods.

Production Engineer will provide technical support for safe, efficient, and high-quality operations in a state-of-the-art biorefinery. Responsibilities include troubleshooting, optimizing plant performance, and collaborating with teams to ensure smooth operations.

Senior Kernel & Hypervisor Engineer will build the EC2 Nitro Hypervisor for AWS, developing virtualization components and automating infrastructure flows. Responsibilities include designing, testing, and deploying solutions across the virtualization software stack, driving operational excellence, and influencing the technological roadmap. Experience designing or architecting new and existing systems, full software development life cycle, and writing clean, optimized, and scalable code using C or Rust is required.

Plan International seeks a Head of International Cooperation Division to implement and develop the division's strategic goals, oversee program activities, and represent the organization internationally. The role requires experience in international cooperation, program management, and leadership.

Develop and optimize optical system designs for automotive holographic displays. Translate system requirements into robust optical concepts and evaluate performance. Collaborate with interdisciplinary teams to ensure system feasibility and performance.

IT Administrator responsible for user support, network administration, server management, and SAP Basis support. Requires completed IT training, Windows expertise, and strong analytical and service-oriented skills.

Develop and support single-use medical device sensor systems for hemodynamic monitoring and ventilation. Drive product care projects to improve existing devices. Utilize lean, agile methodologies in a self-organizing team.

Designs, configures, and implements customer solutions on the Ailance compliance platform. Translates business requirements into actionable solution concepts and supports implementation projects from requirements gathering through go-live.

Designs and develops high-end C++ components for medical desktop applications, focusing on performance, stability, and scalability. Architects, implements, and reviews complex multithreading and parallelization concepts. Analyzes, refactors, and optimizes existing codebases, identifying bottlenecks and improving performance.