freelance English-speaking jobs in Bielefeld

Intern will assist with the implementation of the creative brand vision for BOSS Black & BOSS Camel, participating in color card and concept creation, trend research, and moodboard development.

PhD position available at the Institute of Biology's Department of Plant Physiology. The project focuses on the zygote-to-zygospore transition in the alga *Chlamydomonas reinhardtii* using methods from plant physiology, biochemistry, analytical chemistry, and molecular biology.

The Internal Audit unit seeks a Senior Auditor to conduct risk-based audits at group companies globally. The role involves analyzing business processes, identifying risks, developing audit programs, documenting findings, and communicating results to senior management.

Senior Institutional Sales professional will acquire and cultivate institutional clients, manage mandate onboarding, and contribute to the company's growth strategy.

The Department DHSS is seeking Doctoral and Postdoctoral Researchers for 5 positions. Roles include web application development, experimental methods, and a PhD project on fictional people and the climate crisis. Positions offer opportunities for teaching and project leadership.

SQL Service GmbH seeks a Cloud Engineer to design, develop, and implement Microsoft Azure architectures. Responsibilities include optimizing cloud environments, providing support for cloud service operations, and contributing to DevOps CI/CD processes.

Field Technician to test new software releases, operate AUV platforms, and monitor performance. Requires understanding of robotic systems, ROS/C++, Python, and underwater systems.

Doctoral candidate to investigate cavitation phenomena experimentally and through computer simulation. Develop and implement simulation models in the MESHFREE software and validate them with experimental data.

Internship in Antibody Development focuses on cloning, expressing, and analyzing antibodies. Successful candidates will have a master's degree in biology, immunology, biotechnology, or a related field and knowledge of molecular biological techniques.

Support value stream mapping and AI-supported process optimization projects. Gain insights into production operations and contribute to improving efficiency.

Develop and implement global ZEISS store formats, translating brand strategy and consumer insights into spatial concepts. Lead architectural design of new stores and refurbishments, ensuring on-brand, consumer-centric, and technically feasible implementation. Define and enforce global architectural standards, while scouting and integrating retail trends and technologies.

Research Associate for the Project “Cluster of Excellence Understanding Written Artefacts” (Centre for the Study of Manuscript Cultures). Doctoral researcher in Arabic Studies will pursue a research project within a collaborative team. Responsibilities include contributing to the cluster’s interdisciplinary Graduate School and collaborative research activities. A university degree in Arabic Studies or a closely related discipline is required. Fluency in English and Arabic is necessary.

Medical Director to co-develop medical strategy for Myasthenia Gravis (MG) in Europe. Lead data generation, analysis, and interpretation, safety monitoring, and post-marketing study reports. Provide scientific input for publications, communications, and real-world evidence generation. Deliver medical training and maintain deep scientific knowledge of Neurology/MG.

Supports the CFO with strategic, conceptual, and project-related topics, ensuring efficient decision-making processes. Prepares evaluations, presentations, and documents for executive-level review. Manages board and committee meetings and represents the CFO in internal and external meetings.

Provide customer support for GRID's Odds products and trading-related services. Investigate customer queries and operational alerts, communicate with customers, and support issue resolution.

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.

As an Investment Valuation Manager / Associate, you will provide valuation expertise for renewable energy assets across their lifecycle, supporting investment decisions and collaborating with stakeholders. You will refine valuation methodologies, financial models, and best practices.

Functional Safety Engineer needed for ASIC development. Develop safety concepts, define safety measures, perform risk analyses, and review verification approaches. Experience with IEC 61508 and ISO 26262 required.

The Max Planck Institute for Human Development seeks a Postdoctoral Fellow to lead the integration of polysomnography into a research program focused on sleep physiology and its connection to autonomic function, neurodegenerative disease, and emotion-cognition interactions.

Leads technical product and process support activities at a European vaccine manufacturing center of excellence. Provides strategic leadership for the Technical Services/Manufacturing Science function, overseeing product stewardship, process monitoring, improvement, validation, and technical transfer.