freelance English-speaking jobs in Bielefeld

Guide clients in planning and booking trips, using online platforms and social media. This part-time, remote role provides training and support for beginners interested in the travel industry.

Research Assistant (f/m/d) to collaborate on research projects, contribute to publications, and present findings at seminars and conferences. Must have a postdoctoral research profile in mathematical statistics, nonparametric statistics, nonparametric Bayesian methods, and the mathematical foundations of machine learning.

Drive market growth for IFS Loops, an agentic AI platform, by selling autonomous, AI-driven workflows to industrial enterprises. Lead consultative sales conversations, position IFS Loops as a transformative solution, and close 6-7 digit ACV opportunities. Proven sales hunter with experience selling complex enterprise software and AI solutions is required.

UI/UX Design Intern will design core interfaces for a creative workflow platform, including dashboards, task boards, and communication tools. Responsibilities include creating user flows, wireframes, and high-fidelity designs, collaborating with developers, and iterating on designs. Requires strong interest in UI/UX design, experience with Figma, and understanding of usability principles.

Leads the development of new formulations for Natural (Phyto and Biotic) products. Evaluates formulation concepts, optimizes formulations, and selects raw materials. Manages documentation, stability testing, and CMC dossier sections. Conducts literature research to inform ingredient selection.

Finance Associate to support accounting tasks, financial reporting, and record-keeping for a growing income-share-agreement portfolio.

Experienced leader in data, analytics, and AI sought to shape and deliver client solutions. Requires 10+ years of experience, strong leadership, and proven success in leading AI and data projects. Must possess excellent communication and interpersonal skills, and fluency in English and a second major European language.

Coordinate and monitor clinical trials, ensuring compliance with regulations and collecting data. Develop relationships with stakeholders, investigators, and site staff.

Legal Counsel - Corporate Law provides legal advice on complex cross-border matters, including corporate law, contract law, and M&A.

Senior Manager responsible for setting up, optimizing, and advancing CAE processes. Evaluates validation, testing, and safety requirements for automotive interior components. Negotiates test matrices with customers and coordinates testing in internal and external laboratories.

Finance Operations Manager supports day-to-day financial operations. Responsibilities include payment reconciliation, customer requests, financial reporting, bookkeeping, contract management, and data accuracy. Requires 2+ years of relevant experience, strong attention to detail, integrity, and a proactive mindset.

UX Designer focused on design systems. Develops, maintains, and advocates for a scalable design system across multiple products. Collaborates with stakeholders to ensure design system adoption and consistency. Requires 5+ years of UX/UI experience with a focus on design systems and mastery of Figma.

Leads SumUp's global revenue planning and forecasting strategy, translating commercial ambition into financial outcomes. Builds a unified revenue model across Sales, Marketing, Product, and Finance. Drives scenario-based forecasting and performance insights, identifying risks and enabling confident executive decisions. Optimizes commercial performance frameworks, including sales capacity planning, quota setting, and incentive and pricing structures. Leads and develops a high-performing Revenue Planning team.

Leads and grows a distributed engineering organization of 200 FTE, delivering CGM Hospital Information System products. Translates business and product strategy into a technology roadmap, balancing innovation with legacy constraints. Acts as a key business partner to Product, Sales, Marketing, and Services.

Expert (gn) for verification management of The Good Cashmere Standard. Develops and maintains standards, selects and trains auditors, oversees the verification process, and analyzes data. Requires a university degree, experience with audits and sustainably produced raw materials, and fluency in German and English.

Design, build, and maintain AWS-based infrastructure for EVENTIM's application and data platforms. Implement IaC using Terraform/OpenTofu and develop/optimize CI/CD pipelines. Operate observability stacks and collaborate with teams to drive scalability, automation, and compliance.

Leads the Direct Market Germany-Austria organization, developing and executing growth strategies to achieve sales and financial objectives. Manages the annual Business Plan, builds partnerships, and fosters relationships with Key Opinion Leaders. Leads and develops a high-performing team, ensuring compliance and optimizing procedures. Requires a Bachelor's degree, proven sales leadership experience, and a minimum of 10 years of management experience.

The Compliance Verification Engineer (m/w/d) Electrical Systems ensures electrical design solutions comply with airworthiness requirements, certification standards, and internal processes. The role provides technical oversight and formal CVE approval for electrical systems.

Service Technician for wind turbines performing general mechanical activities, fault analysis, maintenance, and component preparation. Requires industrial mechanic, mechatronics technician, or similar training, experience in wind energy, and a class B driving license.

Aktiv Personal-Service is seeking an Associate System Engineer for a part-time position (80%, 30 hours/week).