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Remote AI training and data labeling jobs in Slovakia

Find remote AI training and data labeling jobs open to applicants in Slovakia.

  • 100% remote
  • Flexible hours
  • Hourly / per-task pay
  • 453 open roles

Materials Science And Engineering AI Task Author

Author expert-level AI evaluations based on real materials science and engineering work, with pay of $60-$90 per hour. Work remotely with a default 40-hour weekly commitment and support from OpenTrain.

Generative AI & RLHF
Text
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $60–$90/hr

Posted Sep 1, 2026

Engineering Simulation AI Evaluation Expert

Use deep engineering expertise and Python to build simulations, define rigorous pass/fail criteria, and evaluate whether AI models can produce valid designs. This remote contract pays $60-$90 per hour for 20+ hours weekly.

Coding & Software
Computer Code Programming
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $60–$90/hr

Posted Sep 1, 2026

Electrical Test Automation Engineer

Use electrical engineering expertise to build automated tests, validate hardware, and evaluate technical results for AI training workflows. This remote contract offers 20+ hours per week at $70 to $85 per hour.

Coding & Software
Computer Code Programming
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70–$85/hr

Posted Sep 1, 2026

CAD/CadQuery Engineer for Parametric Modeling

Use your expert CAD, CadQuery, and Python skills to convert STEP files into simple, editable, executable parametric models. This worldwide contractor project is expected to run for 1 to 3 months and pays $20 to $40 per hour.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Flexible hours
Expert level
Hourly · $20–$40/hr

Posted Sep 1, 2026

CAD And Mechanical Design AI Training Expert

Help train AI to understand engineering drawings by turning dimensioned schematics into precise, validated 3D CAD models with Python. This flexible contract role offers less than 20 hours per week and pays $50 to $100 per hour.

Coding & Software
Computer Code Programming
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $50–$100/hr

Posted Aug 30, 2026

Electrical Design and Power Systems Specialist

Apply your electrical engineering expertise to evaluate designs, power systems, calculations, and technical documentation for AI training. This remote short-term contractor project pays $70-$85 per hour and requires a 40-hour weekly commitment.

General Annotation
Document
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70–$85/hr

Posted Aug 30, 2026

RF and Electromagnetic Engineering Expert

Use your RF and electromagnetic engineering expertise to evaluate complex technical problems for AI training. This remote contractor role offers $80 to $95 per hour and requires 20+ hours weekly.

Generative AI & RLHF
Document
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $80–$95/hr

Posted Aug 30, 2026

Spanish Tutor for AI Training

Use your Spanish teaching experience to lead recorded, one-on-one tutoring sessions that help improve AI language systems. This remote freelance project pays $60 to $70 per hour.

Audio & Speech
Audio
Remote · Austria, Belgium, Bulgaria +27 more
Spanish
Part-time · Flexible
Entry level
Hourly · $60–$70/hr

Posted Aug 30, 2026

Compliance and Financial Crime Workflow Reviewer

Use your compliance or financial crime expertise to explain real workflows, judgment calls, and AI failure points. This remote, part-time contract pays $90 to $110 per hour.

Legal & Finance
Text
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $90–$110/hr

Posted Aug 30, 2026

Spanish Language Learning Session Contributor

Participate in recorded one-on-one Spanish learning sessions, practice real-time conversation, and help create authentic audio data for language-focused AI training. This part-time contractor role offers 20+ hours per week and $30 to $42 per hour.

Data Collection
Audio
Remote · Austria, Belgium, Bulgaria +27 more
Spanish, English
Part-time · Flexible
Entry level
Hourly · $30–$42/hr

Posted Aug 29, 2026

Biology Scientific Coding Evaluator

Create and evaluate executable biology research problems that test frontier AI models. This six-week remote freelance engagement pays $70 per hour and requires at least 20 hours weekly.

Coding & Software
Computer Code Programming
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70/hr

Posted Aug 28, 2026

Scientific Computing AI Evaluation Author

Create executable scientific computing problems, rigorous grading criteria, and model evaluations across advanced physics domains. This remote, six-week contract pays $70 per hour for at least 20 hours weekly.

Coding & Software
Computer Code Programming
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70/hr

Posted Aug 28, 2026

Norwegian Music And Lyrics AI Evaluator

Review AI-generated Norwegian lyrics and music for quality, originality, prompt adherence, and natural language. Work remotely for $42-$78 per hour with flexible 20+ hour weeks on a project lasting up to six months.

Generative AI & RLHF
Audio
Remote · Austria, Belgium, Bulgaria +27 more
Norwegian, English
Part-time · Flexible
Entry level
Hourly · $42–$78/hr

Posted Aug 28, 2026

ADC and Bispecific Antibody R&D Annotation Expert

Use your preclinical ADC or bispecific antibody expertise to annotate scientific data, evaluate model outputs, and shape AI tools for drug discovery. This remote contractor role pays $60-$100 per hour.

Medical & Health
Text
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $60–$100/hr

Posted Aug 28, 2026

Legal AI Evaluation Expert

Use your legal expertise to create difficult evaluation tasks, assess AI-generated responses, and calibrate quality for a worldwide contract role requiring 20+ hours per week.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 28, 2026

Brazilian Portuguese Voice Actor

Use your Brazilian Portuguese voice acting skills to record characters, stories, and varied content for AI projects. This flexible freelance role offers worldwide availability and requires 20+ hours per week.

Audio & Speech
Audio
Remote · Worldwide
Portuguese
Part-time · Flexible
Entry level

Posted Aug 28, 2026

German Voice Actor for AI Voice Data

Create polished German voice recordings that help train next-generation AI. Bring scripts, characters, and stories to life with clear diction, emotional range, and professional audio quality.

Audio & Speech
Audio
Remote · Worldwide
German
Part-time · Flexible
Entry level

Posted Aug 28, 2026

Venture Capital AI Training Associate

Use real venture capital judgment to create and evaluate AI training data covering deal screening, market sizing, diligence, and investment decisions. This remote contractor role offers $45-$100 per hour and requires 20+ hours weekly.

Legal & Finance
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $45–$100/hr

Posted Aug 27, 2026

Investment Banking AI Training Associate

Use 3-6+ years of investment banking experience to create and evaluate AI training data covering valuation, financial modeling, transactions, and client-ready analysis. Remote contractor work requires 20+ hours weekly and pays $45-$100 USD per hour.

Legal & Finance
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $45–$100/hr

Posted Aug 27, 2026

Private Equity AI Training Associate

Use private equity expertise to create transaction tasks, stress-test LBO models, write investment committee materials, and evaluate AI-generated finance work. This flexible contract offers 20+ hours per week at $45 to $100 per hour.

Legal & Finance
Document
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $45–$100/hr

Posted Aug 27, 2026

Tamil Audio Transcription Expert

Transcribe and review Tamil audio for AI training, handling varied accents and dialects with precision. This part-time contractor role pays $10-$24 per hour and requires 20+ hours weekly.

Audio & Speech
Audio
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
Tamil, English
Part-time · Flexible
Entry level
Hourly · $10–$24/hr

Posted Aug 27, 2026

Telugu Transcription Expert

Use your Telugu language expertise to transcribe, annotate, and review audio, video, and text that helps train next-generation AI systems. This remote contractor role offers 20+ hours per week and pays $10 to $24 per hour.

Audio & Speech
Audio
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
Telugu
Part-time · Flexible
Entry level
Hourly · $10–$24/hr

Posted Aug 27, 2026

German Transcription Expert

Use native-level German skills to transcribe and annotate audio that helps train next-generation AI systems. This flexible contractor role offers 20+ hours per week and pays $10-$25 per hour.

Audio & Speech
Audio
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
German
Part-time · Flexible
Entry level
Hourly · $10–$25/hr

Posted Aug 27, 2026

Legal AI Evaluation And Contract Review Expert

Use your legal judgment to create rigorous AI evaluation tasks, review contract-focused responses, and produce gold-standard solutions. This worldwide, part-time contractor role requires professional legal qualifications and 20+ hours per week.

Legal & Finance
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 27, 2026

French Voice Actor for AI Training

Record expressive French voices for characters, stories, and scripted AI training content in a flexible freelance role requiring 20+ hours per week. Use your vocal range and professional recording setup to help shape next-generation AI.

Audio & Speech
Audio
Remote · Worldwide
French
Part-time · Flexible
Entry level

Posted Aug 27, 2026

Italian Voice Actor for AI Training

Use your Italian voice acting skills to record expressive audio for AI training. This flexible contractor role offers 20+ hours per week for performers with professional recording equipment.

Audio & Speech
Audio
Remote · Worldwide
Italian
Part-time · Flexible
Entry level

Posted Aug 27, 2026

Chemistry Scientific AI Evaluation Expert

Use your chemistry expertise to create challenging coding problems and evaluation criteria for frontier AI models in quantum and computational chemistry. This remote, six-week contract pays $70 per hour for 20 or more hours weekly.

Generative AI & RLHF
Text
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70/hr

Posted Aug 27, 2026

Scientific Computing AI Evaluation Task Author

Create challenging, executable AI evaluation tasks for scientific computing at $70 per hour. Apply your PhD-level expertise in mathematics, computational mechanics, or finance through OpenTrain.

Coding & Software
Computer Code Programming
Remote · Austria, Belgium, Bulgaria +27 more
English
Part-time · Flexible
Entry level
Hourly · $70/hr

Posted Aug 27, 2026

Editorial, Poster And Marketing Layout Designer

Use advanced typography, layout, and visual judgment to annotate editorial, poster, marketing, and short-video assets for AI training. This part-time contractor role pays $20 to $50 per hour and requires 20 or more hours weekly.

Image & Video Annotation
Image
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $20–$50/hr

Posted Aug 26, 2026

Polyphonic Music Transcription Expert

Use advanced musical listening and Python audio analysis to transcribe mixed SATB recordings into precise MusicXML scores. This flexible, global contractor role offers approximately 15 hours per week.

Audio & Speech
Audio
Remote · Andorra, United Arab Emirates, Antigua & Barbuda +227 more
English
Part-time · Flexible
Entry level
Hourly · $50–$100/hr

Posted Aug 26, 2026

What this work can involve

AI training work involves preparing and reviewing examples used by artificial-intelligence systems. A role open to applicants located in Slovakia may involve 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 defines the actual responsibilities, so inspect it for the work involved.

  • Possible assignments include data labeling, language work, content evaluation, code review, and other human review for AI systems.
  • The individual live posting is the source of truth for responsibilities and all other role-specific details.

How hiring works through OpenTrain

OpenTrain is the hiring organization for the public roles on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Eligibility for applicants located in Slovakia is determined by each individual live posting, which should be inspected for the opportunity's specific details.

  • Candidates apply through OpenTrain.
  • Read the individual live posting for eligibility and every other role-specific detail.

Frequently asked questions

What can this work involve?
Remote AI training and data labeling work open to applicants located in Slovakia can involve preparing or reviewing examples for AI systems. Depending on the individual posting, tasks 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.
Where can I find role-specific details?
The individual live posting is the only source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements. Inspect the posting for the role you are considering to confirm whether applicants located in Slovakia may apply and to find every other detail.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for roles on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Inspect each individual live posting for all other role-specific details.