freelance English-speaking jobs in Bielefeld

Design engineer specializing in mechanical engineering/automotive engineering needed for development of components, assemblies, and machines. Requires 2+ years of design experience (excluding WS work), CAD proficiency (Creo), and German/English skills.

Freelance lecturer to teach fundamental cyber security knowledge with practical relevance, including business analytics, text mining, web analytics, and experimentation.

Sales Manager responsible for managing the MultiVacc sales process, collaborating with sales teams, and acting as the central point of contact for customers. Requires several years of experience in agriculture or livestock sales, relevant professional background, and strong German and English communication skills.

Working Student for Content & Community Management in Gaming & Esports. Manage social media platforms, engage with online communities, and create engaging content. Must be available weekends and have experience in social media and communication management. Fluency in English and German required.

Conduct a Life Cycle Assessment (LCA) of Co-reactive's carbon mineralization process. Analyze emissions using a cradle-to-gate approach and identify improvement opportunities.

The Assistant Deputy General Counsel will support the Deputy General Counsel – EMEA Region in managing risk and compliance, providing legal advice to regional leadership, and assisting with employment, labor, and human resources issues.

Provide in-person patient support, coordinate medical updates, and ensure safe, high-quality care for U.S. military beneficiaries in European hospitals.

Support concept work on AI-driven solutions for future medical applications in neuroscience and healthcare. Develop and integrate machine learning algorithms for ophthalmological and other medical devices. Analyze, research, test, and implement core functionalities for multi-modal data specific to neuroscience and healthcare.

Site Supervisor (m/f/d) Main Components will lead on-site technical teams, replacing and repairing wind turbine components. Responsibilities include coordinating external service providers, optimizing workflows, and documenting site activities. Requires vocational training in electrical, mechatronics, or mechanical engineering, relevant experience, and strong communication skills.

The Berlin Social Science Center (WZB) seeks a doctoral student for a temporary position from October 1, 2026, to September 30, 2030. The successful candidate will develop and carry out an independent PhD project in Global Health, aligning with the Health and Social Inequality Research Group's thematic focus. Applicants should have a Master's degree in a relevant field, strong research methods background, and fluency in English.

Ulm University's Medical Faculty seeks a Professor (W3) for Physiological Chemistry (f/m/d) to lead the Institute of Physiological Chemistry. The successful candidate will have an internationally recognized research record in physiological chemistry, biochemistry, or molecular biology, with a focus on cellular signaling pathways and their role in disease. The professorship includes teaching biochemistry and molecular biology in German within various degree programs.

Manage end-to-end monthly payroll cycles for a client base of 800-1,000 employees, ensuring compliance with German wage tax and social security legislation. Serve as a subject matter expert for clients on complex payroll inquiries and govern employee master data.

Mechanical Engineers, Engineering professionals, and university students provide Physics tutoring. Assess student understanding, plan lessons, and support problem-solving. Requires a background in Mechanical Engineering, Physics, or related fields.

Drive trucks, operate machinery, and coordinate on-site operations for solar park and agri-PV system development. Requires a valid Class C/CE driver's license and experience handling equipment.

The W2 Professorship for AI Infrastructure (f/m/d) at THWS seeks a committed individual with experience in AI infrastructure to establish a nationally and internationally visible research group. Responsibilities include research and teaching in areas such as distributed systems, cloud-native infrastructure, AI operationalization, and efficient data management. The successful candidate will also be involved in interdisciplinary AI projects and contribute to the development of the faculty and THWS.

Develop and implement innovative assays for plant phenotyping and imaging. Refine standard procedures for robust data collection and integrate automation and digitalization technologies. Analyze imaging data, focusing on Root X-ray CT datasets, and manage technical aspects related to system and automation availability.

Accountant Regulatory Reporting will produce monthly regulatory reports for various institutions, consolidate bank data, and prepare reports and data feeds. The role requires experience in CRR, Statistics, AWV, and KWG reporting, strong analytical skills, and proficiency in Excel, Word, and PowerPoint.

Business Development Representative to join a growing team in Goch, Germany. Responsible for the first phase of the sales process, including outbound calls, lead qualification, and scheduling meetings. Native German and professional English required.

The Mechanical & Test Development Engineer designs, redesigns, and tests hardware components for new and existing products. Responsibilities include designing mechanical solutions, conducting tests, and collaborating with cross-functional teams.

Frankfurt International School in Wiesbaden seeks an experienced Elementary School Homeroom Teacher to inspire and engage children. Teachers will plan and deliver instruction based on the agreed curriculum, utilizing a variety of teaching approaches to create a stimulating and supportive learning environment.