Find remote AI training and data labeling jobs open to applicants in Czechia.
Evaluate personalized AI responses in Portuguese by testing conversations, checking factual grounding, comparing outputs, and writing clear reasoning. This remote contractor role pays $15 per hour.
Posted Jul 15, 2026
Evaluate how a conversational AI model uses personal context in German. Create multi-turn prompts, compare responses, and document evidence-based judgments at $15 per hour for a three-month remote contract.
Posted Jul 15, 2026
Use Ubuntu/Linux to complete structured AI data training tasks, record your actions, and check your work for mistakes. This part-time role pays $10 to $20 per hour and is open to entry-level contributors.
Posted Jul 9, 2026
Work remotely from the Czech Republic as a Czech Team Lead reviewing AI-generated content and quality submissions. The contractor role pays $30 per hour and requires 20+ hours each week, plus fluent Czech and strong English.
Posted Jul 8, 2026
Review PDF and DOCX files, extract legal and financial information, and correct AI-generated JSON outputs against the source documents. This contract project pays $8 to $11.20 per hour for fewer than 20 hours each week.
Posted May 14, 2026
Review accounting and finance documents, correct OCR errors, label document regions, and structure tables and financial fields. Work 20 or more hours per week at $7 to $9 per hour.
Posted Apr 27, 2026
Rate image quality metrics and review image quality assessment tools in a photography-focused AI training project. Work 20 or more hours per week at $5-$7 per hour.
Posted Apr 15, 2026
**Job Name:** Computer Science Expert (Python Validation) **Dataset Description (5–8 words):** Computer science problem design and evaluation **Data Type (select one):** Text **Subject Matter/Industry (5–8 words):** Com…
Posted Apr 5, 2026
**Job Name:** Data Science Expert (Python, SQL, GenAI) **Dataset Description (5–8 words):** Real-world data science problem authoring **Data Type (select one):** Text **Subject Matter/Industry (5–8 words):** Applied dat…
Posted Apr 5, 2026
**Job Name:** Machine Learning Expert (Python, GenAI, SQL) **Dataset Description (5–8 words):** Computational STEM problem creation and verification **Data Type (select one):** Text **Subject Matter/Industry (5–8 words)…
Posted Apr 5, 2026
We are seeking an experienced engineer to assist in training and evaluating AI systems for infrastructure design and scalable automation in high-volume workflows. The position requires generating prompts related to depl…
Posted Mar 29, 2026
We are seeking an experienced low-code developer to help train and evaluate AI systems in complex automation and workflow logic tasks. The role involves designing, building, and reviewing advanced workflows using automa…
Posted Mar 29, 2026
We are seeking an Integration Developer (API Specialist) to train and evaluate AI systems in API integration and interoperability scenarios. You will generate prompts challenging models to design integrations between bu…
Posted Mar 29, 2026
Join a project focused on integrating large language models into automation workflows, where you will develop, test, and refine LLM prompts and evaluation criteria. This role involves designing real-world AI automation…
Posted Mar 29, 2026
**Job Name:** n8n Workflow Developer (Self-Hosted Automation & Integrations) — AI Trainer **Dataset Description (Enter a short description of your Dataset):** n8n workflow prompts and evaluations **Data Type:** Text **S…
Posted Mar 29, 2026
We are seeking a No-Code Automation Specialist with significant experience in building and optimizing workflows using platforms such as Zapier and Make.com. You will collaborate to train and evaluate AI systems by creat…
Posted Mar 29, 2026
We are seeking an expert in financial mathematics to design and verify complex, research-style problem sets using Python. The work involves creating original, computationally intensive problems relevant to quantitative…
Posted Mar 29, 2026
Design and validate original, research-style computational statistics problems that require complex reasoning and cannot be solved manually in reasonable timeframes. Use Python and standard scientific libraries (such as…
Posted Mar 29, 2026
Design and verify original, computationally intensive biology research problems that require non-trivial reasoning and must be solved and validated using Python. Problems must reflect real research workflows in bioinfor…
Posted Mar 29, 2026
Create research-level computational chemistry problems, verified solutions, and Python-based validation workflows. This part-time contractor role pays $15 to $60 per hour based on task complexity and expertise.
Posted Mar 29, 2026
Create challenging computational physics problems based on real research workflows, then write clear, reproducible Python solutions. This global, part-time contract role pays $15 to $60 per hour depending on project scope and complexity.
Posted Mar 29, 2026
Design challenging research-style mathematics problems, write clear solutions, and verify every answer in Python. This worldwide expert contractor role pays $15 to $60 per hour for less than 20 hours per week.
Posted Mar 29, 2026
Create realistic mechanical engineering problem sets and verify reproducible Python solutions using NumPy, Pandas, and SciPy. This part-time contract role pays $15 to $50 per hour.
Posted Mar 29, 2026
Create and verify original electrical engineering problems using Python, with work spanning system design, optimization, control, and power systems. This worldwide contract role pays $15 to $50 per hour and takes fewer than 20 hours per week.
Posted Mar 29, 2026
Create realistic civil and computational engineering problems, then verify solutions with Python and engineering libraries. This part-time contract pays $15 to $50 per hour and is open worldwide.
Posted Mar 29, 2026
Work globally as a Vibecode Specialist building Python scrapers for complex, JavaScript-heavy websites. Earn $20 per hour while delivering clean, validated datasets for AI training.
Posted Feb 26, 2026
Design realistic tests for AI agents, define expected behavior, and review model outputs. This part-time contract pays $18 to $24 per hour and requires 20 or more hours each week.
Posted Jan 13, 2026
Transcribe short Korean recordings for $14 per hour in a long-term, part-time role with about one flexible hour of work each day. You will also review audio and flag unclear segments.
Posted Jan 7, 2026
Transcribe short French audio recordings, verify unclear segments, and label unusable audio for $15 per hour. This ongoing contract offers about one flexible hour of work each day.
Posted Jan 7, 2026
Create and verify Python-based mechanical engineering problems that help train and evaluate AI models. This flexible contract role pays $10-$45 per hour and requires advanced English, Python, and relevant engineering expertise.
Posted Dec 12, 2025
AI training and data labeling help prepare and review examples used by artificial-intelligence systems. Depending on the posting, work may include labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The individual posting explains which tasks apply to that role.
OpenTrain is the hiring organization for roles listed on OpenTrain, including opportunities open to applicants located in Czechia. Candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. The individual posting is the source of truth for role-specific hiring information.
