Freelance Jobs in Hamburg, Germany

Freiberuflicher Hotel Brand Assessor role at Ecolab seeks experienced hotel professionals to travel across Germany, evaluating hotel standards and providing actionable recommendations. Candidates must reside in a major German city with good transport links, hold a valid passport and driver’s license, and possess full work authorization in Germany.

We are looking for an experienced Hotel Brand Assessor to independently evaluate hotel standards across Germany. The role involves traveling to major cities, conducting on-site inspections, and delivering detailed reports that help hotels improve guest experience.

SumUp seeks a freelance field sales consultant to expand its presence in German cities. The role involves prospecting small and medium enterprises, delivering product demos, onboarding clients, and gathering market insights.

Travelsation’s platform, JoinMyTrip, seeks an enthusiastic Tour Guide to lead multi‑day adventures across Hamburg and beyond. The role blends passion for local culture with strong organizational skills, requiring the ability to design itineraries, manage logistics, and adapt on the fly.

JoinMyTrip seeks enthusiastic, open‑minded tour guides to lead travelers through Hamburg’s hidden gems. As a TripLeader, you’ll design and run multi‑day excursions, share local stories, and adapt to each group’s needs.

JoinMyTrip seeks an enthusiastic Tour Guide to lead travelers through Hamburg’s historic sites, local nature, and city secrets. The role blends independent work with a structured platform, allowing you to set your own hours while earning a steady income.

Toloka Annotators connects people worldwide with generative AI projects to train and improve artificial intelligence. As a Freelance Annotator you will review text, images or video data, label or classify content according to guidelines, and flag incorrect, sensitive or unclear material.

CXG Customer Experience team enhances the experience of premium luxury brands worldwide. As a Freelance Luxury Brand Evaluator you will conduct discreet in‑store or online evaluations of selected luxury brands, complete detailed questionnaires, and provide objective feedback to shape brand strategies.

Mindrift AI Evaluation Team builds datasets to assess AI coding agents for leading tech companies. The Engineer creates realistic developer environments, designs challenging tasks, writes robust evaluation tests, and iterates based on QA feedback.

Mindrift AI Project Platform connects specialists with project‑based AI opportunities for leading tech companies, focusing on testing, evaluating, and improving AI systems. As a Claims Processing Agent – Freelance AI Trainer you will evaluate AI‑generated auto insurance claim decisions, design FNOL and fraud‑flagging scenarios, build subrogation test cases, and document results with policy citations.

Mindrift's Tendem project team builds a hybrid AI + human system for specialized data extraction. As a Senior Python Data Scraping Engineer you will design and run end‑to‑end web scraping workflows, validate and structure large datasets, and integrate AI‑assisted tools like Apify and OpenRouter.

Mindrift connects specialists with project‑based AI opportunities, focusing on testing, evaluating, and improving AI systems. As a Customer Support Specialist AI Trainer you will design and evaluate fee inquiry, autopay, card replacement, and account closure scenarios, then grade responses for accuracy and tone.

Tendem project at Mindrift builds a hybrid AI‑human environment for conversational automation. The freelance Bot Developer designs, builds and refines WhatsApp, Telegram and Discord bots, integrates LLMs, and ensures reliable production operation.

Mindrift's Tendem project team builds hybrid AI‑human mobile experiences, connecting AI agents with specialist developers. As a Freelance Mobile App Developer you will design, develop and refine iOS and Android apps using React Native, Flutter, Swift or Kotlin, integrate device features and backend APIs, and evaluate AI‑generated code for production quality.

Creative Marketing Team at Goodgame Studios creates high‑impact video ads for a new mobile 4X strategy game. The role designs, builds, and edits 30‑45 second vertical ads end‑to‑end, using Unity to stage scenes and motion‑graphics tools for post‑production.

Tendem Project at Mindrift focuses on hybrid AI‑human workflows to unlock generative AI potential. As a Python Data Scraping Engineer you will design and run end‑to‑end web extraction pipelines, validate and structure datasets, and integrate AI tools like Apify and OpenRouter to enhance automation.

Mindrift connects specialists with project‑based AI opportunities for leading tech companies, focusing on testing, evaluating, and improving AI systems. As a Portfolio Manager AI Trainer you will design and evaluate portfolio performance, tax‑loss harvesting, suitability checks, and fee‑stack analysis test cases, documenting clear calculations and policy citations.

Mindrift connects specialists with project-based AI opportunities, focusing on testing, evaluating, and improving AI systems. As a Compliance Analyst AI Trainer you will design and evaluate rule application scenarios, build compliance testing cases, and document policy gaps with precise regulatory citations.

Academy Team at Aspria Hamburg Uhlenhorst delivers swimming programs for children, from baby swim to advanced levels. The Swim Instructor / Children Swim Trainer conducts swim courses, technique training, and holiday camps, ensuring young members achieve their goals with professional, caring guidance.