Remote AI training jobs in Costa Rica
Open AI training and data labeling positions available to applicants in Costa Rica. Every job is remote — apply with a free OpenTrain account.
2 open positions
US Culture-Savvy, English-Speaking Book Lovers for AI Chat & Feedback Project
Join short remote sessions to discuss U.S. books and help improve AI reading recommendations — three 20–30 minute chats (60–90 minutes total). Entry-level, remote contract work at $6.65/hr; fluent English and familiarity with U.S. culture required.
View jobPosted Mar 3, 2025
Board-Certified Radiologist – Medical Image Annotation
US-based, board-certified radiologists are needed for a 1–2 month remote project annotating DICOM images with bounding boxes and classifications; flexible 5–15 hrs/week schedule and $150/hr on a secure platform.
View jobPosted Feb 27, 2025
Creating SQL queries from human queries
Write flawless SQL queries that answer 100 sports-related user questions using a provided database and labeling tool; this contract pays $40/hr, requires 20+ hours/week and East Coast working hours for a short project window. Collaborate with the existing team and receive context and support while y
View jobPosted Feb 22, 2025
LLM model trainer for a medical scoring system
Collect urine output and serum creatinine data from the MIMIC‑4 database to build a training dataset for an LLM-based event prediction model; fixed-price $1,000, contractor role, intermediate level, remote worldwide.
View jobPosted Feb 19, 2025
English Text Annotation & Review (Argentina-Based)
Argentina-based remote contractors with B2+ English are needed to review and correct pre-annotated English text tags for model training; part-time, flexible work under 20 hrs/week at $3.50/hr. A short classification test is part of screening.
View jobPosted Feb 17, 2025
Audio Transcription - English
Native English speakers in the USA or Canada: join a remote, part-time contractor project transcribing English audio at $15/hr. Commit at least 1 hour daily, Monday–Friday, and help train speech models by identifying words, assessing audio quality, and producing precise transcripts.
View jobPosted Feb 11, 2025
English - Creative Writing (Prompt+Response) - USA/Canada
Write original prompt-and-response pairs for AI training from website screenshots; native English writers in the U.S. or Canada, $21/hr, contractor part-time, immediate start and 15–20+ hrs/week preferred. Prior prompt-writing or annotation platform experience is a strong plus.
View jobPosted Feb 4, 2025
Mandarin question answer pairs for electrical engineering
Review 50–100 Mandarin question–answer pairs for electrical engineering, match each answer to supporting documents, and ensure every response is fully cited for RAG workflows. Contract, remote role at $40/hr with a 20+ hours/week commitment.
View jobPosted Feb 3, 2025
Compare responses for Dutch corporate financial law documents
Compare 80 pairs of model and gold expert responses about Dutch corporate financial law, identify mismatches, and produce actionable top-level insights; ideal for an English-speaking Dutch master’s law student available 20+ hrs/week.
View jobPosted Jan 28, 2025
Web Developer (HTML/CSS/JS) - India - C1/C2 English Required
Remote contract role for frontend developers in India: create annotations and edit HTML/CSS/JS from website screenshots. Must have official C1/C2 English proof, 2+ years frontend experience, be ready to start immediately, 20+ hrs/week at $13/hr.
View jobPosted Jan 10, 2025
Dutch Speakers needed for Data Annotation
Seeking Dutch speakers for an entry-level, remote speech annotation project paying a fixed $400.26 for the contract. Training on the team's proprietary tool is provided — you’ll label and segment short audio clips to help improve AI language systems.
View jobPosted Jan 9, 2025
Flemish Native Speakers for Audio Annotation
Native Flemish speakers wanted for a remote audio annotation contract: transcribe and label speech segments using internal tooling. Part-time (20+ hrs/week), training provided, fixed-price $300 for the project.
View jobPosted Jan 8, 2025
Bashkir Native Speakers for Audio Annotation
Seeking native Bashkir speakers to transcribe and label audio segments using project guidelines; entry-level, part-time contractor work with training provided and a fixed payment of $300 for the assignment.
View jobPosted Jan 8, 2025
Kabyle Speakers for Audio Annotation
Native Kabyle speakers: transcribe and label audio remotely for an entry-level, part-time contractor role (20+ hrs/week) with training provided and fixed-price compensation of $270 USD.
View jobPosted Jan 7, 2025
Haitian Creole Speakers for Audio Annotation
Native Haitian Creole speakers needed to transcribe and label audio for an AI-training project; no prior experience required and training is provided. This part-time contractor role requires about 20+ hours/week and is paid a fixed USD 270 project fee.
View jobPosted Jan 7, 2025
Sindhi Native Speakers for Audio Annotation
Native Sindhi speakers are needed to transcribe and label audio for a remote, part-time annotation project. Training is provided and the task pays a fixed $200 USD for the project.
View jobPosted Jan 7, 2025
Seeking Native Gujarati Speakers for Audio Annotation Project
Work remotely as a native Gujarati speaker annotating audio: transcribe clips and mark segments using internal tooling, with training provided and a fixed project fee of $100. Part-time contractor role requiring 3–5 hours daily (20+ hrs/week) and basic Google Sheets skills.
View jobPosted Jan 7, 2025
Tamil Native Speakers for Audio Annotation
Join a global, remote audio-annotation project as a native Tamil speaker; transcribe, label speech segments, and classify audio using a proprietary tool. No prior experience required — work 3–5 hours daily and receive a fixed payment of USD 100.
View jobPosted Jan 6, 2025
Gujarati Data Annotation Specialist
Native Gujarati speakers: transcribe and segment short audio clips for an AI training project using internal tools, with training provided. Work remotely 3–5 hours daily as a contractor and earn a fixed $115 for the project.
View jobPosted Jan 4, 2025
Operating Systems Expert (India, C1 English)
Seeking an experienced Operating Systems subject-matter expert in India to create, refine, and verify OS-focused AI training data; requires C1 English, a live technical test/interview, and the ability to document troubleshooting and scripting tasks precisely.
View jobPosted Jan 2, 2025
System Administrator Expert (India, C1 English)
Join OpenTrain to shape AI understanding of real-world system administration: review, document, and explain server workflows and scripts. Remote role for India-based system administrators with C1 English, 20+ hrs/week at $25/hr, contractor/part-time.
View jobPosted Jan 2, 2025
Senior Excel Specialist (India, C1 English)
Design advanced Excel prompts and evaluate AI outputs to shape how models understand complex spreadsheets; $23/hr, contractor/part-time based in India requiring C1 English and 7+ years of Excel experience. Candidates must pass a coding/skill test and a live interview.
View jobPosted Jan 2, 2025
Slurm Workload Manager Expert (India, C1 English)
Join OpenTrain to create and evaluate AI training data focused on Slurm workload management; India-based candidates with C1 English and 7+ years of Slurm experience are invited to apply for a part-time contractor role at $27/hr. Expect scripting, evaluation, and a live coding interview.
View jobPosted Dec 30, 2024
Salesforce Developer Expert (India, C1 English)
Remote, part-time contractor role for a Senior Salesforce Developer in India to create coding prompts and evaluate AI-generated Salesforce code; requires C1 English, 7+ years of Salesforce experience, and $24/hr for under 20 hours/week. Candidates must pass a live interview and coding test.
View jobPosted Dec 30, 2024
Call Recording Sentiment
Listen to 2–5 minute customer support calls and label the caller's sentiment as one of five categories. Entry-level, worldwide, part-time contractor work with a fixed payment of $100 for the assignment.
View jobPosted Dec 27, 2024
GDScript Programming Language Expert (India, C1 English)
Contract role for an India-based GDScript SME to review, debug, and correct AI-generated Godot code at $20/hr, ~20+ hours/week. Requires C1 English, deep Godot/GDScript experience (7+ years), attention to detail, and the ability to document corrections clearly.
View jobPosted Dec 26, 2024
Perl Programming Language Expert (India, C1 English)
Experienced Perl developers in India are needed to review, debug, and correct AI-generated Perl code, document fixes clearly, and help train models; $20/hr, part-time contractor under 20 hours/week. Requires C1 English, 7+ years Perl, a coding test and live interview.
View jobPosted Dec 26, 2024
Julia Programming Language Expert (India, C1 English)
Seeking a Julia Subject Matter Expert based in India with C1 English and 7+ years of professional Julia experience to review, debug, and correct AI-generated code. Contract, part-time work at $27/hr (~20+ hrs/week); candidates must pass a coding test and live interview.
View jobPosted Dec 26, 2024
Lua Programming Language Expert (India, C1 English)
Experienced Lua developer based in India needed to review, debug, and correct AI-generated code for training datasets; contract, part-time work at $24/hr. Applicants must pass a live coding/skill test and interview and provide exact weekly availability.
View jobPosted Dec 26, 2024
Rust Programming Language Expert (India, C1 English)
Help train AI by reviewing, debugging, and correcting Rust code while documenting each fix. Contract, part-time role for candidates in India with 7+ years of Rust experience and C1-level English, paid $26/hr.
View jobPosted Dec 26, 2024