freelance English-speaking jobs in Bielefeld

Student assistant to support a computational biology research project involving scientific literature curation. Tasks include collecting and organizing scientific publications. Must be an enrolled Bachelor's or Master's student in the life sciences with good written English.

Project Engineer (f/m/d) will lead technical offers and design for integrated electrical systems in Energy Industries. Focus areas include Power-to-X, grid connection of renewables, Battery Energy Storage Systems, and substation engineering.

Seeking a Commercial Co-Founder to lead market entry and sales for an AI-powered AgTech startup. Responsibilities include building the sales funnel, securing pilot customers, and driving funding strategy. Native-level German and a founder mentality are required. Significant equity offered.

Group CFO to lead financial transformation and support international growth strategy. Partner with CEO and private equity owners, driving business performance and operational efficiency. Lead finance, IT, and controlling functions, including budgeting, reporting, and compliance.

Lead engineering teams for TeamViewer's core connectivity, including Remote, Tensor, and ONE. Define and execute the roadmap for remote access & control, drive AI innovation, and ensure security and scalability.

As a Pre-Sales Technical Engineer, you will be the technical authority on UPS systems and Power Distribution Units, partnering with hyperscale customers and Sales to architect power solutions. You will review customer requirements, design bespoke power systems, and coordinate with internal and external teams to bring solutions to life.

ThirtyEight Capital seeks entrepreneurial individuals to co-found businesses in the energy and climate space. This involves identifying, validating, and potentially building scalable and profitable ventures from scratch. Areas of focus include heating & heat pump ecosystems, energy financing models, and energy optimization. Ideal candidates possess entrepreneurial potential, operational experience, and a strong understanding of energy-related systems.

Intern supporting Route-to-Market excellence and performance. Develop and maintain Power BI dashboards, analyze KPIs, and contribute to optimization projects.

Texon (Far East) Limited seeks a German native Trend Scout to connect China and Asia sourcing with German retail demands. The role bridges creative insight with commercial strategy, increasing direct import, turnover, and profit margin. Responsibilities include market research, trend analysis, supplier engagement, and reporting.

Field Service Engineer needed for installation, repair, maintenance, and commissioning of minerals processing equipment. Requires 5+ years of experience with mills, crushers, screens, flotation cells, and other related equipment. Strong mechanical aptitude and ability to conduct detailed inspections and write technical reports.

Postdoctoral position in virology and molecular medicine available at Witten/Herdecke University. The position is funded by the German Research Foundation (DFG) and focuses on standardized virus preparations and cell culture systems for human adenoviruses.

Drive the technological evolution of sensor systems, focusing on robust, precise, and innovative solutions for demanding industrial inspection applications. You will translate customer and application requirements into viable system architectures, with a focus on ultrasonic technologies and state-of-the-art signal processing.

Defines and steers the target architecture for production and process data across BASF Coatings sites. Develops standards and concepts for integrating data sources while ensuring data quality, availability, and security. Structures production data to enable reporting, analysis, and AI applications. Collaborates with business functions and project teams to implement data-driven solutions.

Postdoctoral position in Computational Imaging and cryo-electron tomography. Develop computational methods for deformation-aware reconstruction in cryo-ET data.

This thesis investigates transient electron dynamics in low-κ dielectrics using pump-probe spectroscopy. The goal is to quantify free-electron density, relaxation behavior, and optical constant modifications following deep-UV femtosecond excitation.

Experienced housekeeper needed for modern apartment complex in Panketal. Responsibilities include quality control, training staff, managing laundry, and assisting with guest services. Must have professional housekeeping experience, excellent cleaning knowledge, and strong attention to detail.

The CFO will lead all financial aspects of a €30m B2B business transitioning to a SaaS model. Responsibilities include financial planning, reporting, and driving the company's transformation. The role requires experience in a PE-backed, high-growth environment and a strong understanding of SaaS KPIs.

IT Service Lead responsible for global backup services (on-prem, Azure, Microsoft 365, Entra ID). Designs, implements, and manages backup architectures, ensuring stable, secure, and highly available operations. Collaborates with global stakeholders, IT security, architecture, and cloud teams.

The Faculty of Print and Media at Hochschule der Medien seeks a Professor for Print Technologies and Applications. Responsibilities include establishing a research line, supervising doctoral candidates, teaching courses, and developing networks. Qualifications include a doctorate in engineering or natural sciences, professional experience, a strong publication record, and proficiency in German and English.

Student assistant for policy and implementation research in cancer prevention. Tasks include document sourcing, analysis, and synthesis. Requires university enrollment, experience with research methods, and proficiency in German and English.