freelance English-speaking jobs in Bielefeld

Student supporting the Test and Validation Engineer in daily business. Tasks include planning and performing tests, supporting AI tool implementation, data analysis, and technical documentation.

FairWind seeks an HSEQ Manager NCE to lead and develop the regional HSEQ team, drive strategy and performance, and ensure safety and quality standards across installation and service activities.

Finance Manager will own and manage financial operations, prepare investor reports, and collaborate with CEOs and tax advisors. Requires a degree in finance, accounting, or related field and 3+ years of experience in finance with a focus on strategic reporting, automation, and data-driven decision making.

The German Cancer Research Center seeks a Team Lead in Data-Centric AI. The successful candidate will lead a Young Investigator Group focused on robust machine learning for imaging across domains. Responsibilities include developing algorithms, collaborating with HI support and scientific teams, and contributing to training and education.

Develop and lead product and brand line reviews with customers across Europe, leveraging market analytics, customer needs, and financial targets to drive sales and margin growth. Conduct market and consumer research, analyze data, and translate insights into actionable strategies. Build and maintain strong customer relationships and support internal teams with data-driven recommendations.

Senior Robotics Software Engineer will design, implement, and harden robotic software for defense and mission-critical operations. Responsibilities include developing autonomous systems, working with multi-modal sensor data, and debugging robotic systems. Requires strong proficiency in modern C++, ROS/ROS 2, and experience with real-time systems.

INIKTI seeks a native German speaker to build and grow its renewable energy business in Germany. This role involves market entry, partnership development, business opportunity identification, and local operation foundation.

Designs, develops, and tests mechanical assemblies and mechatronic components for medical laser systems. Collaborates with research, systems engineering, electrical engineering, mechanical engineering, software engineering, quality engineering, regulatory affairs, and quality management.

The NATO Integrated Mission Services Centre (NIMSC) seeks industry support to deliver technical, operational, engineering, and service-governance activities for the NATO Security Assistance and Training for Ukraine (NSATU). The Contractor will provide Routing and Switching Level 3 service technical support, infrastructure maintenance, system documentation management, Engineering service reporting, and participation in on-call and operational coordination activities.

Technical Service Engineer to perform root cause analysis on energy storage unit failures, conduct repairs, and develop aftersales materials. Provide technical training and support to internal and external teams. Requires a Bachelor's degree in a related field, 3+ years of experience, fluency in German and English, and proficiency with test instruments.

The University of Cologne and the German Cancer Research Center (DKFZ) seek a professorship in Clinical Computational Cancer Biology. The successful candidate will lead a DKFZ research division within the NCT, analyze clinical datasets, develop algorithms, and contribute to teaching at the Medical Faculty.

Senior Product Manager will lead product strategies for a new product line, conduct market research, and collaborate with cross-functional teams to define product requirements and ensure successful launches.

RF Engineer for cellular product development within a TCU team. Designs, integrates, and tests NADs on TCU PCBs. Requires 5+ years of RF and cellular modem experience, 3GPP standards knowledge, and NAD expertise.

Support the planning and execution of influencer marketing campaigns across various brands. Develop creative briefs and content concepts, research and identify new creators, and monitor campaign performance. Contribute to strategy optimization and assist with influencer seeding activities.

Account Executive (Business Development / Closing) will guide qualified leads from initial request to contract closure, building customer relationships and driving revenue.

Develop and execute commercial strategies to achieve above-market growth. Identify and pursue new product opportunities. Manage sales activities for OEM accounts and collaborate with global teams. Lead and motivate a sales team, driving profitability and financial results.

Loss Prevention Expert ensures operational continuity and security across Amazon's supply chain. Responsibilities include identifying vulnerabilities, managing risk, ensuring compliance with security standards, and leading security-related projects.

Cost Engineer to lead cost optimization initiatives from early product development stages. Drive cost-efficient product designs through design simplification, material selection, and manufacturing process improvements. Analyze cost impact of design concepts and collaborate with R&D, Purchasing, and suppliers.

Provide technical support for CAD systems, including Autodesk products (AutoCAD, Revit), PTC Creo, and MicroStation. Analyze and resolve user issues, develop solutions, and document them in the knowledge base.

Postdoctoral researcher to lead theoretical analysis of early warning systems and tipping points in socio-ecological systems. Develop analytical and numerical models of decision-making under uncertainty, learning, and strategic interaction. Collaborate with experimental team at the University of Augsburg.