freelance English-speaking jobs in Bielefeld

Internship in research projects for interactive systems with eye-tracking. Students will work on user interaction, interface design, prototyping, and new hardware.

Record approximately 1 hour of natural audio conversations based on customer support scenarios and prompts. Participants may record individually or with a partner and will be asked to play a role such as Customer or Support Agent.

Leads commercial performance of multiple Mindspace locations, driving revenue growth, occupancy, retention, and profitability. Manages regional sales, pipeline, pricing, and forecasting while supporting complex deals and new location launches.

Lead a large-scale, global SAP transformation program, ensuring alignment between IT, business units, and stakeholders. Drive business adoption and on-time, on-budget program delivery.

Provides customer service, assists with jewelry selection, and processes sales transactions. Handles customer inquiries, complaints, and suggestions. Maintains a clean and organized work area.

Working Student to support the Renewables Business Administration Team in Düsseldorf. Tasks include data analysis, reporting, administrative processes, creating reports and presentations, and database maintenance. Must be enrolled in a relevant program, proficient in Excel and PowerPoint, and have experience with databases and SharePoint.

Technical Sales / Business Development Manager to drive growth in the German Automotive market. Develop new business opportunities with OEMs and Tier 1 suppliers, build relationships, and lead projects from development to production. Bachelor's degree in engineering (Mechanical, Chemical, or Materials Science) and 8+ years of experience in Automotive (Sales, BD, or Application Development) required.

Provide high-quality travel assistance via chat, phone, and email. Process bookings and educate customers on the Navan platform. Must be fluent in German and English, have GDS experience, and be metrics-driven.

Provides support for the selection, implementation, and management of transfer pricing IT systems. Monitors ICTP results, identifies deviations, and coordinates corrective actions. Builds relationships with internal stakeholders to ensure alignment on transfer pricing matters.

PhD student position available in functional host-microbiome research. The successful candidate will perform interventional gnotobiotic mouse experiments, analyze gene expression and microbiome data, and characterize HKDC1-dependent processes.

Facilities Technician needed for a full-time position at Heidelberg Marriott Hotel. Responsibilities include monitoring and inspecting technical systems, repairing and maintaining guest rooms and public spaces, and ensuring smooth hotel operations. Requires completed vocational training in a technical trade or comparable experience, initial professional experience in a similar role, and good German and English skills.

Teach programming online at your own pace. Deliver personalized lessons to students of all levels. Strong communication and teaching skills required.

As Office Manager (50% Part Time), you will oversee daily office operations, manage vendor relationships, and organize company events. You will also act as the Safety Officer, ensuring workplace safety compliance and conducting safety training.

Account Manager responsible for selling IVD products and systems in northern Germany. Develops regional sales strategies, builds customer relationships, and proposes solutions to meet customer needs. Requires a scientific degree, 3-5 years of sales experience in immunochemistry/diagnostics, and fluency in German and English.

The Customer Care Lead manages, coordinates, and reports on the resolution of escalated customer complaints. The role acts as a liaison between customers, the INEOS Dealer Network, and global engineering teams to ensure timely and effective issue resolution. Responsibilities include managing the relationship with the Road Side Assistance provider, optimizing processes, and ensuring compliance with technical standards, warranty policies, and customer care guidelines.

Lead Electronics EMC Engineer responsible for EMC design, testing, and verification of automotive energy storage products. Perform regulatory and customer requirements analysis, design verification activities, and EMC testing. Manage interfaces with other departments and suppliers, presenting technical results.

Prepare and serve Milano Vice products, create memorable customer experiences, and contribute to a fast-paced, positive restaurant atmosphere. Must have clean work habits, strong team spirit, and confident communication skills. Good English skills are required, German is a plus.

AeroLogic, a modern cargo airline, seeks an Engineer Aircraft Reliability & Maintenance Program to monitor fleet reliability, coordinate actions with system engineers, and manage part numbers in AMOS.

The Analytical Strategy Director designs and oversees analytical strategies for drug discovery, development, and regulatory approval. This role provides scientific and regulatory guidance for analytical plans across all development phases and drives innovation in analytical technologies.

Senior Flight Control System Engineer will design and implement flight control solutions for complex UAV systems. Responsibilities include conceptualizing solutions, participating in architecture design, coordinating workflow, and communicating with stakeholders. Requires 5+ years of experience in flight control system design, understanding of flight physics and dynamics, and proficiency in Matlab/Simulink, C/C++, and digital signal processing.