freelance English-speaking jobs in Bielefeld

As a Working Student Content Management System, you will develop communication strategies, documentation, and training concepts. You will manage the Learning Management System (LMS) and contribute to the design and documentation of learning experiences.

Leads the development and acquisition roadmap for a large casual games portfolio. Manages and grows a team of game designers, producers, and developers. Oversees the development lifecycle of multiple titles and establishes KPIs for engagement, retention, monetization, and fun.

Field Application Engineer to introduce and support the use of power electronics components from suppliers. Requires a degree in electrical engineering, experience with power converter design, and fluency in English and German.

Senior UX Content Designer to join N26's UX team. Shape the content experience to help customers achieve financial goals. Collaborate on content strategy, design user-centric content, and optimize content flows.

Experienced SAP PP-PI Consultant needed to support and develop the SAP PP-PI module and related processes. Responsibilities include analysis, optimization, and implementation of production and planning processes, as well as collaboration with internal departments. Strong ABAP knowledge and experience with customizing the SAP PP-PI module are required. Excellent German (B1 level or above) and English skills are essential.

Leads the operations FP&A finance organization in Weilburg, providing guidance and support to operations finance roles. Collaborates with operations leadership, identifies cost savings and productivity improvements, and ensures compliance with finance policies and SOX regulations.

Teamlead SAP Consultant FICO Finance & Controlling (w/m/x) needed for national and international SAP S/4HANA Finance projects. Requires 8+ years of consulting experience, including technical and disciplinary team leadership, and expertise in SAP S/4HANA finance and accounting systems. Strong communication and negotiation skills in German (C1) and English are essential.

Lead a team of data scientists in developing and deploying machine learning solutions to optimize AUTO1 Group's platforms and processes.

As Business Controller Metal and Energy, you will support Speira's growth and sustainability targets by delivering best-in-class business performance management, partnering with stakeholders, and leading projects. You will analyze business performance, develop recommendations for optimization, and support the implementation of improvement measures.

Senior Manager Clinical QA with 5+ years of experience in clinical quality management/assurance. Responsibilities include conducting audits, creating quality documents, supporting inspection readiness, and providing quality guidance to clinical functions. Requires experience in investigator site auditing and knowledge of ICH-GCP/GCLP regulations.

Freelance lecturer to teach fundamental AI project knowledge on AWS Cloud, including infrastructure, shared responsibility, serverless deployment, and cost optimization.

As a Working Student in Strategic Markets and Accounts Technology Systems, you will support Global Business Development, Market Intelligence, and Strategic Account Management teams. You will assist in market analysis, strategic assessments, and team support.

The Akademische r Rat/Rätin (Postdoc) will develop and deliver lectures, tutorials, and practical courses in hydrogeology. Responsibilities include operating and maintaining the hydrogeological laboratory, participating in research projects, and contributing to the development of research focus areas.

Manages team development, performance, and adherence to safety and quality standards. Leads problem-solving, continuous improvement, and project industrialization efforts. Requires a master's degree in engineering and several years of production experience.

Technical Purchaser (m/f/d) Composite needed for motorsport team in Cologne. Develop and execute purchasing strategies, evaluate suppliers, and manage the buying process for motorsport components.

Nachhilfeunterricht seeks tutors with a good knowledge of Chinese to provide private lessons. No prior teaching experience is required, only completion of compulsory higher education.

Deliver groceries to customers efficiently by e-bike or e-scooter. Meet and exceed delivery targets while providing exceptional customer service.

Senior Biostatistician to lead study design and evidence planning across clinical, biomechanical, and biomedical research. Expert guidance on statistical analysis, regulatory submissions, and data integrity. Strong programming skills in R, SAS, or Python required.

SunExpress seeks a Solution Owner – Mobile Application to define and deliver the vision for iOS and Android apps. Responsibilities include understanding customer needs, collaborating with cross-functional teams, and tracking KPIs. The ideal candidate has 3-5 years of experience as a Solution/Product Owner or Manager in digital or e-commerce, a relevant degree, and strong analytical and communication skills.

Working student to support the Impact Team with CSRD/EcoVadis reporting, sustainability projects, and the European Impact Council. Assist with project management, product management, and service desk management.