freelance English-speaking jobs in Bielefeld

Senior Mechanical Engineer to lead mechanical design and coordination of data center projects. Responsibilities include system design, calculations, coordination with multidisciplinary teams, and ensuring compliance with German regulations and standards. Requires a Bachelor's degree in a relevant engineering discipline and experience delivering mechanical building services projects in Germany.

Senior Product Designer (m/f/d) to own end-to-end, CRO-focused design across web journeys. Design and execute A/B tests, analyze results, and optimize web funnels for conversion, activation, and engagement. Partner with Product, BI, Marketing, and Customer Care to drive growth.

The Regional Operations Manager – Third-Party Business Development supports the growth, onboarding, and stabilization of third-party managed assets in the Netherlands and Germany. This role manages third-party business development initiatives, provides operational input for RFP responses, and leads operational onboarding for new assets.

Dual Student Electrical Engineering position in cooperation with HAW Hamburg. The role involves technical order analysis, solution development, planning, organizing, evaluating work results, measuring and analyzing electrical systems, and advising customers.

Senior Associate responsible for data management within Real Estate Controlling. Focus on maintaining, harmonizing, and documenting data, process, and governance structures. Ensures transparent, consistent, and traceable documentation standards. Collaborates with business teams, IT, and external service providers.

Manage and maintain software for international and domestic customers, implementing updates, bug fixes, and feature enhancements. Provide 2nd level support and technical troubleshooting, collaborating with Engineering, Operations, and Project Managers.

Chief of Staff to the Chief Product Technology Officer, managing operations, prioritization, OKRs, budget control, and strategic projects. Requires 5+ years of experience in a similar role, tech affinity, strong organizational skills, and fluency in German and English.

Lead the clinical development of a high-priority obesity, diabetes, and incretin-based therapy asset from post-Proof of Concept through registration. Define and execute the clinical development strategy, own the clinical strategy at the program level, and drive late-stage decision-making.

The Supplier Quality Engineer ensures supply chain companies develop processes aligned with customer design intent and regulatory requirements. Responsibilities include supplier verification, root cause analysis, corrective feedback, and managing customer-specific requirements. The role requires a qualified engineer with experience in manufacturing processes, knowledge of FDA, GMP, ISO 13485, and ISO 9001, and strong communication and analytical skills.

Lead daily operations of a diagnostics company's Leipzig site, overseeing production, logistics, quality control, and regulatory compliance. Implement lean manufacturing principles and digital transformation initiatives to improve efficiency and effectiveness.

Oversee international customs, trade, and compliance activities globally. Lead compliance initiatives, process optimization, and automation. Collaborate with international stakeholders on regulatory and operational matters.

Postdoctoral position in micrometeorological and statistical modeling to support spatial planning. Applicants must hold a degree in a relevant field and have experience with statistical methods, machine learning, and spatial datasets.

Mechanical Commissioning Engineer will ensure mechanical installations meet project specifications. Responsibilities include developing commissioning plans, conducting site inspections, coordinating with contractors, and supporting commissioning activities. Requires a Bachelor's degree in Mechanical Engineering and experience in mechanical commissioning.

Develop test solutions for a range of applications in large high-speed digital, analog, RF and power ICs. Test and characterize functionality and performance of ASICs.

Shape and enhance the technological backbone of our global procurement organization. Drive digital transformation by optimizing our SAP environment and advancing AI capabilities within the team.

This entry-level role provides hands-on experience in trade credit insurance. You will support contract management, assist with underwriting decisions, and gradually take on client responsibilities.

Designs and executes sales training solutions for JCI sales management teams. Builds training programs for new and tenured employees, leveraging content from Sales, Sales Trainers, and technical training groups. Develops role-specific content, delivery methods, assessments, and tests. Manages training programs end-to-end, collaborating with internal and external partners. Requires extensive experience in sales and operations training, fluency in German, and proven expertise in end-to-end training development and delivery.

Lead engaging 90-minute tours of Amazon Robotics Fulfillment Centers, showcasing technology, processes, and company initiatives. Provide informative and engaging experiences for diverse audiences, ensuring adherence to safety protocols. Collaborate with fulfillment center teams and contribute to continuous improvement efforts.

Support the Robot Sales Team and global go-to-market activities. Coordinate trade fairs, distributor marketing, and regional sales manager support. Manage leads, inquiries, and cross-regional communication.

Manage strategic IT transformation projects across an organization. Develop project charters, business cases, and target operating models. Lead cross-functional teams, manage budgets, timelines, and risks.