9 freelance English-speaking jobs in Hesse

Contracts Manager | Freelance | Data Centre | Frankfurt I'm currently working with a well‐established ... Frankfurt, Germany Language: English (business fluent) Contract Length: 12 Months Employment Type: Freelance

A valid work permit for freelance work in Germany (if applicable)**. 18 years of age or older. ** ... Seasonal freelance work (during school holidays) Teaching English in the mornings Supervision of children ... visas containing the words "selbstständige tätigkeit nicht erlaubt" are generally not permitted to do freelance

Locations: Frankfurt Contract Type: Permanent or Freelance Start Date: ASAP / Upcoming 2026 Projects

Freelance Senior CRA ICON plc is a world-leading healthcare intelligence and clinical research organization

Freelance English writers train AI models by crafting text that teaches AI reasoning, logic, and clarity. Contributors create original, fact-checked responses, collaborate with Quality Assurance Specialists, and adhere to style and quality standards.

Freelance Junior Journalist will train AI models to understand and generate human-like text. Tasks include crafting responses, generating prompts, defining scoring criteria, and ensuring quality.

Freelance optical engineers design computationally intensive physics problems for AI systems. Applicants should have a physics degree, 2+ years of experience, and strong English writing skills.

Freelance AI trainer needed to design computational chemistry problems requiring Python programming. Must have a chemistry degree, Python proficiency, and experience with numerical methods in chemistry.

Meeting bonus: EUR 25–50 per qualified meeting On-target monthly earnings: EUR 800–1,200+ Arrangement: Freelance