Content Annotation AI training jobs

Korean Language Expert

• Languages, Translation & Voice
• Platform: micro1
• Location: 58 countries
• Language: Korean

This role consists of transcribing audio samples in Korean and English with high precision, then reviewing and annotating the files to ensure linguistic quality. The project aims to feed the training of innovative AI systems, and is looking for experts with native-level Korean mastery, with no prior requirement in artificial intelligence.

Posted September 19, 2026

Clinical Publications Author

• Health & Medicine
• Platform: micro1
• Location: 58 countries
• Level: Expert

This role involves evaluating and refining AI tools designed for scientific and medical writing, using your expertise to train AI systems. You will write and review realistic evaluation tasks based on published manuscripts, abstracts and scientific presentations, while verifying data accuracy and compliance with publication ethical standards.

Posted September 18, 2026

Human Intelligence Collector

• Business, Consulting & Operations
• Platform: micro1
• Location: 58 countries
• Level: Intermediate

This role invites you to mobilize your expertise in interviewing and investigative questioning to contribute to training next-generation AI systems. You will conduct structured elicitation sessions, analyze responses in real time by detecting verbal and behavioral cues, and document your analyses according to precise frameworks. The ideal profile possesses solid experience in professional interviews, intelligence information gathering, or investigative questioning.

Posted September 18, 2026

Paid Photo Contributor Opportunity

• Data & Machine Learning
• Platform: micro1
• Location: 58 countries

Participate in a photographic data collection project for the training and evaluation of artificial intelligence systems. You will take photos of yourself according to simple instructions, answer a short questionnaire, and complete everything remotely via your smartphone. This project seeks to build a dataset representative of diverse communities and physical appearances.

Posted September 17, 2026

Education & Training Expert

• Business, Consulting & Operations
• Platform: Mercor
• Location: United States

Join a network of education experts to evaluate and improve explanations generated by AI models. You will write pedagogical exercises, rate materials created by AI, and identify points of confusion, leveraging your experience as a teacher or trainer.

Posted September 15, 2026

Language & Audio Expert

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Spanish, Arabic, Hindi, French, Portuguese

This role consists of evaluating and improving the capabilities of AI models in language and audio. You will provide expert judgments on the quality of translations, the naturalness of voice and audio content, and participate in the creation of training resources. This role is designed for linguists, translators, and audio professionals with recognized native or professional expertise.

Posted September 15, 2026

Behavioral Analyst

• Business, Consulting & Operations
• Platform: micro1
• Location: 58 countries

You analyze textual, audio and video data to identify and categorize subtle behavioral indicators such as tone, gestures and speech patterns, in order to support the development of AI systems. This role is aimed at professionals from behavioral consulting, coaching or theater backgrounds who can interpret the nuances of human interactions.

Posted September 15, 2026

Audiobook QA Expert - Dutch

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Dutch

You will listen to audiobooks generated by text-to-speech synthesis in Dutch and evaluate the natural quality and accuracy of the narration. By identifying pronunciation defects, reading errors and unnatural intonations, you will contribute to improving AI models. This part-time role is aimed at native Dutch speakers who are passionate about audiobooks.

Posted September 14, 2026

Audiobook QA Expert - English (US)

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States

You will listen to audiobooks generated by text-to-speech synthesis and evaluate the quality of the narration, identifying pronunciation errors, inaccuracies, and lack of naturalness. This role suits a native English speaker passionate about audiobooks, capable of precisely identifying where narration deteriorates so that AI models can be improved.

Posted September 14, 2026

Audiobook QA Expert - French

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: French

You will listen to audiobooks generated by French text-to-speech synthesis to assess the naturalness and quality of narration. Your role will consist of identifying pronunciation defects, intonation errors, and audio anomalies, documenting them precisely to improve the underlying AI models. This job suits a French-speaking listener passionate about audiobooks, capable of combining critical listening with analytical rigor.

Posted September 14, 2026

Audiobook QA Expert - German

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: German

This job involves evaluating the quality of audiobooks generated by text-to-speech synthesis in German by carefully listening to recordings to identify defects in pronunciation, intonation, and articulation. Candidates must be native or near-native speakers of German (Germany) with a genuine passion for audiobooks and experience in annotation or proofreading tasks.

Posted September 14, 2026

Audiobook QA Expert - Italian

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Italian

You will evaluate audiobooks generated by text-to-speech synthesis in Italian by carefully listening to the quality, accuracy, and naturalness of the narration. You will identify and document imperfections in the synthesized speech to help improve voice generation models. This role is intended for native or near-native Italian speakers who have audiobook narration experience and a critical ear.

Posted September 14, 2026

Audiobook QA Expert - Portuguese (Brazil)

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Portuguese

You will listen to audiobooks generated by text-to-speech synthesis in Brazilian Portuguese and evaluate the naturalness and accuracy of the narration. You will identify pronunciation errors, mispronounced or omitted words, and intonation defects to help improve the underlying AI models. This role is suited to a native Brazilian Portuguese speaker who enjoys audiobooks and has 20 hours per week available for remote work.

Posted September 14, 2026

Audiobook QA Expert - Portuguese (Portugal)

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Portuguese

You will evaluate audiobooks generated by text-to-speech synthesis in European Portuguese, listening carefully to identify pronunciation defects, intonation issues, or other anomalies in the narration. Your role consists of annotating these errors precisely in order to improve the underlying AI models. This job is intended for native or near-native speakers of European Portuguese who are passionate about audiobooks and have experience in annotation or careful revision.

Posted September 14, 2026

Audiobook QA Expert - Spanish (US)

• Languages, Translation & Voice
• Platform: Mercor
• Location: United States
• Language: Spanish

You will listen to audiobooks generated by text-to-speech synthesis in North American Spanish to evaluate the naturalness and quality of the narration. Your job is to detect pronunciation errors, inaccuracies, and acoustic defects, then document them precisely to improve the underlying models. This role suits a native Spanish speaker passionate about audiobooks and experienced with detailed annotation work.

Posted September 14, 2026

Health Physicist

• Health & Medicine
• Platform: Mercor
• Location: United States

You will help test the robustness of AI models against malicious risks as a radiation protection specialist. Your role consists of designing deliberately ambiguous technical requests, evaluating the model's responses according to a defined security policy, and documenting best practices, while knowing how to distinguish legitimate professional questions from malicious intentions.

Posted September 14, 2026

Paid Photo Contributor Opportunity (Twins)

• Data & Machine Learning
• Platform: micro1
• Location: 58 countries

This role consists of building a photographic dataset to train and evaluate artificial intelligence systems. You are recruited as a pair of twins to photograph and submit images of yourselves, individually or together, following simple instructions, then answer a short questionnaire. The project takes place entirely remotely via your smartphone.

Posted September 14, 2026

Video Annotation Specialist

• Writing, Creative & Design
• Platform: micro1
• Location: 58 countries

You will annotate and evaluate videos and audio recordings to train AI systems, verifying the accuracy of generated descriptions and providing detailed feedback. This role is suited to specialists with solid domain expertise in analyzing visual and audio content, without requiring prior experience in artificial intelligence.

Posted September 14, 2026

Cantonese Language Evaluator

• Languages, Translation & Voice
• Platform: micro1
• Location: 58 countries
• Language: Chinese

This role involves evaluating the quality and relevance of texts and statements in Cantonese to train generalist AI systems. As a native Cantonese speaker, you will use proprietary tools to analyze linguistic data and provide detailed feedback aimed at improving natural language processing models.

Posted September 11, 2026

FreeCAD Expert

• Engineering
• Platform: micro1
• Location: 58 countries

This role involves creating technical question-answer sets based on complex CAD assemblies in FreeCAD to train AI models. You will analyze detailed mechanical designs and write high-quality educational content demonstrating your expertise in mechanical engineering, aerospace, or industrial design.

Posted September 11, 2026