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Freelance Jobs in Germany

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Optical Engineer - Freelance AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Theoretical Physics, Electromagnetism, Thermodynamics, Quantum Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience. Must be proficient in numerical simulation methods and possess strong written English skills (C1+).
Experience Required
Minimum 2 year(s)
Freelance - Account Manager/ in - Remote at JK Group
, , Germany - Full Time
Skills Needed
Sales, Communication, Negotiation, Customer Relationship Management, Lead Generation, Ms Office, Crm Systems, Marketing Collaboration
Specialization
Candidates must have proven experience in performance-based sales and strong negotiation skills. Proficiency in MS Office and CRM systems is required, along with a self-driven and results-oriented work ethic.
Experience Required
Minimum 2 year(s)
Freelance Junior Journalist - AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Journalism, Critical Thinking, English Writing, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering, Grammar, Stylistic Analysis, Linguistics
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English proficiency at a C1/C2 level.
Freelance Junior Journalist - AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Optical Engineer - Freelance AI Trainer at Mindrift
, , Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Electromagnetism, Quantum Mechanics, Thermodynamics, Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, applied physics, or teaching. Must be proficient in numerical simulation methods and possess strong written English skills (C1+).
Experience Required
Minimum 2 year(s)
Freelance - Account Manager/ in - Remote at JK Group
, , Germany - Full Time
Skills Needed
Sales, Communication, Negotiation, Customer Relationship Management, Lead Generation, Marketing Collaboration, Ms Office, Crm Systems, Result Oriented, Self Management
Specialization
Candidates must have proven experience in performance-based sales and strong communication and negotiation skills. Proficiency in MS Office and CRM systems is required, along with a self-driven and results-oriented work approach.
Experience Required
Minimum 2 year(s)
Freelance TYPO3 Content Manager (m/w/d) at Mindbox GmbH
Dresden, Saxony, Germany - Full Time
Skills Needed
Typo3, Content Management, Information Architecture, Html, Css, Image Editing, Stakeholder Management, Ux/Ui Design, Digital Content Strategy, Quality Assurance, Process Optimization, Agile Methodology
Specialization
Requires several years of practical experience with TYPO3 and a structured approach to managing complex website architectures. Proficiency in HTML/CSS and image editing is preferred, along with a strong interest in automation and AI.
Experience Required
Minimum 2 year(s)
Optical Engineer - Freelance AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Theoretical Physics, Experimental Physics, Computational Physics, Electromagnetism, Thermodynamics, Quantum Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, applied physics, or teaching. Must possess strong numerical simulation skills and C1+ English proficiency.
Experience Required
Minimum 2 year(s)
Freelance Junior Journalist - AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field and at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Freelance Junior Journalist - AI Trainer at Mindrift
, , Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Video Content Producer Freelance (m/f/d) at Transfermarkt
, Bavaria, Germany - Full Time
Skills Needed
Video Production, Content Creation, Football Knowledge, Data Driven Content, Social Media Content, English Proficiency, Attention To Detail, Workflow Efficiency, Research, Content Stadium, Canva, Video Editing Software
Specialization
Requires strong football knowledge, professional English skills, and the ability to produce high volumes of content efficiently. Experience with tools like Content Stadium or Canva is a plus but not required.
Experience Required
Minimum 2 year(s)
Freelance Lecturer (Business Economics) at Berlin School of Business and Innovation
Berlin, , Germany - Full Time
Skills Needed
Teaching, Research Supervision, Curriculum Development, Student Mentoring, Academic Assessment, English Fluency, Ms Office, Organizational Skills, Communication Skills, Social Competence, Academic Leadership, Dissertation Supervision
Specialization
A PhD or equivalent qualification with theoretical and practical expertise in Business Economics is essential. Candidates must be fluent in English (C2 level) and possess strong organizational and communication skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Hamburg, , Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Content Classification, English Proficiency, Logical Thinking, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Stuttgart, Baden-Württemberg, Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Logical Thinking, English Proficiency, Content Classification, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Content Classification, English Proficiency, Logical Thinking, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
, , Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, English Proficiency, Logical Thinking, Reasoning, Attention To Detail, Communication Skills, Content Classification
Specialization
Requires a Bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Munich, Bavaria, Germany - Full Time
Skills Needed
Annotation, Data Labeling, Fact Checking, Logical Thinking, Reasoning, Attention To Detail, Communication Skills, Artificial Intelligence, Generative Ai, English Proficiency
Specialization
Candidates must hold a bachelor's degree and have at least one year of professional experience. An advanced level of English (C1 or higher) and strong logical reasoning abilities are required.
AI Workflow Engineer - Freelance AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Llm Apis, Prompt Engineering, Ai Automation, Workflow Development, Api Integration, Data Preprocessing, Content Generation, Personalization Logic, Python, Openai, Claude, Gemini, Scalable Systems, Quality Control, Troubleshooting
Specialization
Requires at least 3 years of experience in AI automation, prompt engineering, or software development. Proficiency in LLM API integration and strong analytical skills are essential for this role.
Experience Required
Minimum 2 year(s)
Freelance Data Scraping Engineer (Python) at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Python, Web Scraping, Data Extraction, Beautifulsoup, Selenium, Apify, Openrouter, Data Validation, Data Cleaning, Javascript, Ajax, Api, Llms, Automation, Data Normalization
Specialization
Requires at least 3 years of experience in data engineering, web scraping, or software development with strong Python proficiency. Candidates must have experience handling dynamic web content and possess upper-intermediate English skills.
Experience Required
Minimum 2 year(s)
Research Physicist - Freelance AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Optics, Numerical Simulation, Physics Modeling, Quantum Mechanics, Thermodynamics, Electromagnetism, Mechanics, Problem Design, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, application, or teaching. Must possess strong numerical simulation skills and C1+ English proficiency.
Experience Required
Minimum 2 year(s)
Optical Engineer - Freelance AI Trainer at Mindrift
Frankfurt, Hesse, Germany -
Full Time

Start Date

Immediate

Expiry Date

28 Aug, 26

Salary

45.0

Posted On

30 May, 26

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

No

Skills

Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Theoretical Physics, Electromagnetism, Thermodynamics, Quantum Mechanics, Technical Writing, English Proficiency

Industry

technology;Information and Internet

Description
Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What this opportunity involves While each project involves unique tasks, contributors may: Design original optics problems that simulate real physics research workflows; Ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days/weeks); Develop problems requiring non-trivial reasoning chains in mechanics, electromagnetism, thermodynamics, and quantum mechanics; Base problems on real research challenges or practical applications from optics & physics practice; Document problem statements clearly and provide verified correct answers. What we look for This opportunity is a good fit for optical engineers open to part-time, non-permanent projects. Ideally, contributors will have: Degree in Physics (Theoretical, Experimental, or Computational) or related fields; 2+ years of professional experience: applied, research, or teaching experience is applicable; Experience with numerical simulation methods; Ability to design problems that mirror real physics research workflows; Creative thinking in problem design across diverse physics areas; Familiarity with physics modeling and approximation techniques; Strong written English (C1+). How it works Apply → Pass qualification(s) → Join a project → Complete tasks → Get paid Project time expectations For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active. Compensation On this project, contributors can earn up to $45 per hour equivalent, depending on their level and pace of contribution. Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.

How To Apply:

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Responsibilities
Design and document complex optics and physics problems to test and improve AI systems. Ensure problems require non-trivial reasoning chains and simulate real-world research workflows.
Optical Engineer - Freelance AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Theoretical Physics, Electromagnetism, Thermodynamics, Quantum Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience. Must be proficient in numerical simulation methods and possess strong written English skills (C1+).
Experience Required
Minimum 2 year(s)
Freelance - Account Manager/ in - Remote at JK Group
, , Germany - Full Time
Skills Needed
Sales, Communication, Negotiation, Customer Relationship Management, Lead Generation, Ms Office, Crm Systems, Marketing Collaboration
Specialization
Candidates must have proven experience in performance-based sales and strong negotiation skills. Proficiency in MS Office and CRM systems is required, along with a self-driven and results-oriented work ethic.
Experience Required
Minimum 2 year(s)
Freelance Junior Journalist - AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Journalism, Critical Thinking, English Writing, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering, Grammar, Stylistic Analysis, Linguistics
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English proficiency at a C1/C2 level.
Freelance Junior Journalist - AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Optical Engineer - Freelance AI Trainer at Mindrift
, , Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Electromagnetism, Quantum Mechanics, Thermodynamics, Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, applied physics, or teaching. Must be proficient in numerical simulation methods and possess strong written English skills (C1+).
Experience Required
Minimum 2 year(s)
Freelance - Account Manager/ in - Remote at JK Group
, , Germany - Full Time
Skills Needed
Sales, Communication, Negotiation, Customer Relationship Management, Lead Generation, Marketing Collaboration, Ms Office, Crm Systems, Result Oriented, Self Management
Specialization
Candidates must have proven experience in performance-based sales and strong communication and negotiation skills. Proficiency in MS Office and CRM systems is required, along with a self-driven and results-oriented work approach.
Experience Required
Minimum 2 year(s)
Freelance TYPO3 Content Manager (m/w/d) at Mindbox GmbH
Dresden, Saxony, Germany - Full Time
Skills Needed
Typo3, Content Management, Information Architecture, Html, Css, Image Editing, Stakeholder Management, Ux/Ui Design, Digital Content Strategy, Quality Assurance, Process Optimization, Agile Methodology
Specialization
Requires several years of practical experience with TYPO3 and a structured approach to managing complex website architectures. Proficiency in HTML/CSS and image editing is preferred, along with a strong interest in automation and AI.
Experience Required
Minimum 2 year(s)
Optical Engineer - Freelance AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Optical Engineering, Numerical Simulation, Physics Modeling, Problem Design, Theoretical Physics, Experimental Physics, Computational Physics, Electromagnetism, Thermodynamics, Quantum Mechanics, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, applied physics, or teaching. Must possess strong numerical simulation skills and C1+ English proficiency.
Experience Required
Minimum 2 year(s)
Freelance Junior Journalist - AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field and at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Freelance Junior Journalist - AI Trainer at Mindrift
, , Germany - Full Time
Skills Needed
Journalism, Communications, Linguistics, Literature, English Proficiency, Critical Thinking, Fact Checking, Ai Training, Content Evaluation, Prompt Engineering
Specialization
Requires a Bachelor's degree in Journalism, Communications, or a related field with at least one year of professional experience. Must possess strong written English skills (C1/C2) and a stable internet connection.
Video Content Producer Freelance (m/f/d) at Transfermarkt
, Bavaria, Germany - Full Time
Skills Needed
Video Production, Content Creation, Football Knowledge, Data Driven Content, Social Media Content, English Proficiency, Attention To Detail, Workflow Efficiency, Research, Content Stadium, Canva, Video Editing Software
Specialization
Requires strong football knowledge, professional English skills, and the ability to produce high volumes of content efficiently. Experience with tools like Content Stadium or Canva is a plus but not required.
Experience Required
Minimum 2 year(s)
Freelance Lecturer (Business Economics) at Berlin School of Business and Innovation
Berlin, , Germany - Full Time
Skills Needed
Teaching, Research Supervision, Curriculum Development, Student Mentoring, Academic Assessment, English Fluency, Ms Office, Organizational Skills, Communication Skills, Social Competence, Academic Leadership, Dissertation Supervision
Specialization
A PhD or equivalent qualification with theoretical and practical expertise in Business Economics is essential. Candidates must be fluent in English (C2 level) and possess strong organizational and communication skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Hamburg, , Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Content Classification, English Proficiency, Logical Thinking, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Stuttgart, Baden-Württemberg, Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Logical Thinking, English Proficiency, Content Classification, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, Content Classification, English Proficiency, Logical Thinking, Attention To Detail, Communication Skills, Reasoning Abilities
Specialization
Requires a bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
, , Germany - Full Time
Skills Needed
Data Annotation, Fact Checking, English Proficiency, Logical Thinking, Reasoning, Attention To Detail, Communication Skills, Content Classification
Specialization
Requires a Bachelor's degree and at least one year of professional experience. Candidates must have advanced English proficiency (C1 or higher) and strong analytical skills.
Freelance Annotator (English) - AI Trainer at Toloka Annotators
Munich, Bavaria, Germany - Full Time
Skills Needed
Annotation, Data Labeling, Fact Checking, Logical Thinking, Reasoning, Attention To Detail, Communication Skills, Artificial Intelligence, Generative Ai, English Proficiency
Specialization
Candidates must hold a bachelor's degree and have at least one year of professional experience. An advanced level of English (C1 or higher) and strong logical reasoning abilities are required.
AI Workflow Engineer - Freelance AI Trainer at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Llm Apis, Prompt Engineering, Ai Automation, Workflow Development, Api Integration, Data Preprocessing, Content Generation, Personalization Logic, Python, Openai, Claude, Gemini, Scalable Systems, Quality Control, Troubleshooting
Specialization
Requires at least 3 years of experience in AI automation, prompt engineering, or software development. Proficiency in LLM API integration and strong analytical skills are essential for this role.
Experience Required
Minimum 2 year(s)
Freelance Data Scraping Engineer (Python) at Mindrift
Berlin, , Germany - Full Time
Skills Needed
Python, Web Scraping, Data Extraction, Beautifulsoup, Selenium, Apify, Openrouter, Data Validation, Data Cleaning, Javascript, Ajax, Api, Llms, Automation, Data Normalization
Specialization
Requires at least 3 years of experience in data engineering, web scraping, or software development with strong Python proficiency. Candidates must have experience handling dynamic web content and possess upper-intermediate English skills.
Experience Required
Minimum 2 year(s)
Research Physicist - Freelance AI Trainer at Mindrift
Frankfurt, Hesse, Germany - Full Time
Skills Needed
Optics, Numerical Simulation, Physics Modeling, Quantum Mechanics, Thermodynamics, Electromagnetism, Mechanics, Problem Design, Technical Writing, English Proficiency
Specialization
Requires a degree in Physics or a related field with at least 2 years of professional experience in research, application, or teaching. Must possess strong numerical simulation skills and C1+ English proficiency.
Experience Required
Minimum 2 year(s)