freelance English-speaking jobs in Bielefeld

Research Associate (f/m/d) to develop software for 3D rendering, visualization, and simulation-based system development. Focus on generating realistic virtual environments using Gaussian Splatting and other techniques. Requires strong C++ skills and a passion for 3D graphics and XR technologies. PhD pursuit encouraged.

Frankfurt International School seeks an organized and technologically proficient Administrative Assistant for Grades 6-8. The role supports the Upper School office, manages substitute teacher coverage, and assists with scheduling and events. Applicants must be proficient in English and German.

The Payroll Specialist supports all aspects of payroll and benefits, including processing payroll, administering benefits, and resolving employee queries. Responsible for ensuring accurate and timely processing of payroll, new starters, leavers, and promotions. Requires a Bachelor's degree in a commercial field or equivalent experience, strong knowledge of payroll software, and excellent communication skills.

The Global Interconnection Technology Engineer develops and executes interconnection technology and sourcing strategies for a complex product environment. The role collaborates with R&D, Procurement, and suppliers to align business requirements, technical roadmaps, and supply market capabilities. Responsibilities include driving the creation and maintenance of global requirements matrices, supporting technical supplier evaluations, and facilitating communication across global teams.

Production Operator supports day-to-day manufacturing operations including preparing production lines, operating machinery, handling documentation, and maintaining equipment.

Lead strategic logistics network planning across Europe, designing and optimizing warehouse networks, transportation, and fulfillment infrastructure.

Global Supply Chain Manager needed to develop and implement supply chain strategies, manage logistics, production planning, and inventory management. Requires 8+ years of experience in a full E2E Supply Chain role within the Biotech or Pharmaceutical industry.

Senior PCB Design Engineer needed for next-generation data center accelerator platforms. Responsibilities include designing complex, high-layer-count PCBs, owning EDA libraries, defining routing constraints, and collaborating with SI/PI teams. Requires 5+ years of experience with Siemens Xpedition and a strong understanding of signal and power integrity fundamentals.

As a Client Service Associate, you will be the first point of contact for Italian-speaking customers, answering inquiries via email and phone. You will resolve routine issues and collaborate with the Level 2 team for complex questions. You will also capture customer feedback and contribute to product and process improvements.

Leads and develops global export control, sanctions, and customs compliance frameworks. Ensures adherence to international regulations and acts as a compliance advisor to stakeholders. Optimizes processes and mitigates risks.

Audio Engineering Working Student will plan, execute, and post-process speech recordings for AI training. Responsibilities include data labeling, database management, and maintaining recording equipment. Requires current enrollment in an audio engineering program and experience with audio software and signal processing.

The Service Manager ensures excellent customer service, manages daily operations, and develops service standards. This role requires strong technical knowledge of Segway products, fluency in German and English, and the ability to handle customer inquiries, process warranty claims, and collaborate with internal and external teams.

Project Manager to lead cross-functional development projects for inhalation and nasal drug delivery technologies. Manage project budgets, timelines, quality targets, and collaborate with internal teams and external partners. Requires a relevant Bachelor's or Master's degree and experience in project management of medical device or pharmaceutical product development.

Manage and grow customer relationships in the Automotive Fluids Independent Aftermarket, focusing on coolant/antifreeze and brake fluid products. Negotiate contracts, steer technical and commercial projects, and acquire new customers. Represent BTC at industry events and contribute to digitalization initiatives.

Senior Research Scientist (m/f/d) will participate in project acquisition, software solution design, and team management. The role involves projects at the intersection of data science, robotics, and AI. Fluent English required.

International Payroll Specialist (German Speaker) needed for fixed-term contract (July 2026 - December 2027). Process, audit, and reconcile international payrolls for Germany, Austria, and Switzerland. Partner with external providers and internal stakeholders to ensure accurate and timely payroll reporting.

Intern will support validation tasks for Digital Multiphase Controllers and Smart Power Stage Modules. Responsibilities include evaluation plans, Python scripting, hardware automation, data collection and analysis, debugging, and ATE to bench correlation.

Senior Systems Engineer to contribute to the smooth operation of the ESC, working with global AWS teams and influencing AWS services. Requires fluency in English, experience with Python, Perl, or other scripting languages, and expertise in Linux and networking.

Data Warehouse Engineer needed to design, build, and maintain scalable data warehouse architectures. Responsibilities include developing ETL/ELT pipelines, optimizing query performance, and collaborating with stakeholders. Requires strong SQL skills, Python experience, and knowledge of DWH concepts and technologies.

Administers administrative tasks and documentation processing for a department, ensuring timely and quality outcomes. Manages internal information flow, prepares documents and reports, and supports data collection. Requires 2+ years of experience as an administrative technician and fluency in the local language.