freelance English-speaking jobs in Bielefeld

Part-time Facilities Assistant needed for 20 hours per week, Monday to Friday. Duties include coordinating property documents, assisting with help desk queries, managing room bookings, and supporting tenant service requests. Requires strong communication, organizational, and customer service skills, as well as proficiency in MS Office Suite.

Support the update and preparation of content for a customer engagement platform. Translate product data into engaging marketing content and collaborate with internal stakeholders.

Lead Solutions Engineer will provide technical consultation to prospects and customers, supporting sales and channel goals. This role requires strong technical, business, and customer skills, experience in SaaS or technology product organizations, and experience with ITSM/ITIL and cloud-based infrastructure.

The Werkstaettenleiter is responsible for the 6981st Motor Operations & Maintenance Branch, overseeing repair and maintenance of vehicles, equipment, and tools. The incumbent ensures vehicles are certified for transporting dangerous property and manages a team of mechanics. Responsibilities include planning and programming maintenance, analyzing maintenance trends, and coordinating repair requests. The position requires technical proficiency in vehicle and equipment repair, knowledge of maintenance policies and regulations, and experience in managing a team.

Provide customer support in Spanish and English, primarily via written communication. Resolve customer inquiries and mediate between parties on the Cardmarket platform.

Lead a team responsible for STABL's Battery Cloud, a platform connecting battery systems, processing telemetry, and enabling operational excellence. Define and evolve cloud architecture, ensure reliable connectivity, design scalable data pipelines, and lead development of internal tools.

Lead and instruct complex stress tasks for in-service fleet maintenance and upgrade projects. Perform structural analysis, define specifications, and develop program code routines for analysis tools. Improve, define, and adapt stress and F&DT methods for metallic and composite structures.

Analyze and assess IT-supported business processes, IT infrastructure, and systems for effectiveness, efficiency, and compliance. Conduct vulnerability analysis, evaluate IT processes, and prepare audit reports. Develop risk-oriented audit programs and utilize data analytics tools.

Management Consultant at Project Manager level sought to lead operational transformation and performance improvement of a portfolio textile company. Responsibilities include steering transformation programs, collaborating with management, and implementing operational changes. Requires several years of experience in restructuring, reorganization, or performance improvement, strong analytical and communication skills, and fluency in German and English.

Senior controller (m, f, d) required for private markets. Responsibilities include controlling reports, loans, distributions, and NAV calculations. Requires a Master's or Bachelor's in Accounting, Audit, or Tax, with experience in private equity investments and IFRS knowledge.

Strategic Network Manager (f/m/d) will align global demand forecasts with manufacturing capacity, identify process improvements, and collaborate with cross-functional teams.

Lead cultivation and study of microbial species, including lactic acid bacteria, E. coli, B. subtilis, and yeasts. Design and optimize media formulations to boost productivity and stability. Build, validate, and standardize assays to inform media and bioprocess choices.

Senior Data Scientist with 5+ years experience developing data-driven solutions and deploying complex models. Proficient in Python, PySpark, and Databricks. Experience in Pricing, Forecasting, or Marketing modeling. Focus on CI/CD, version control, and modular coding. Mentors junior and mid-level data scientists. Designs and develops scalable ML/Deep Learning models. Manages the entire production lifecycle. Drives CI/CD automation and designs high-performance PySpark ETL frameworks. Ensures model reliability through testing, drift detection, and monitoring. Collaborates cross-functionally in a cloud environment (Azure, Databricks, Google Cloud).

QA Specialist for Microsoft Dynamics 365 Business Central. Execute test plans, document defects, and provide functional support. Must have 2+ years of hands-on experience with BC, strong problem-solving skills, and excellent written and spoken English.

This two-year Commercial Traineeship Program offers hands-on experience in agricultural commodity trading, transportation, and processing markets across Europe. Trainees will develop skills in contract law, logistics, risk management, and financial analysis.

Develop and implement global market access strategies for urology and hematology products. Lead payer evidence generation and prepare value dossiers for pricing and reimbursement negotiations. Collaborate cross-functionally with regional teams and other departments.

The position is a 2-year qualification position for a doctoral student in Economic Theory and Policy, Industrial Organization, Behavioural Economics, International Economics, or Econometrics. Applicants must have a completed scientific university education in Economics or a related quantitative-mathematical discipline with outstanding grades.

Lead the strategy and execution of product capabilities at the intersection of conversational AI, platform architecture, and customer value. Translate complex technical opportunities into clear, scalable product outcomes for enterprise customers.

The Faculty of Electrical Engineering and Computer Science at Leibniz University Hannover seeks a University Professor in Semiconductor Technologies and Photonics. The professorship will focus on research and teaching in semiconductor devices and technology, with a particular emphasis on microelectronics and related fields.

Legal Counsel will provide legal support to ZOLL's businesses in EMEA, focusing on the Acute Care Technology Division. Responsibilities include drafting and negotiating contracts, advising on legal matters, and conducting legal research. Must be a German qualified lawyer with 1-3 years of relevant experience.