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Remote AI training and data labeling jobs in Slovakia

Looking for remote AI training or data labeling work you can do from Slovakia? These roles explicitly accept applicants located in Slovakia, but eligibility can change by posting and remote work does not mean a role is physically based there. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.

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

Local Face Data Collection Teams, Contract $25–30/hr

OpenTrain AI seeks experienced local teams to run on-the-ground facial image collection projects; part-time contractor work pays $25–30/hour for under 20 hours/week. Teams must demonstrate prior offline face-collection experience and basic English.

Data Collection
Image
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $25–$30/hr

Posted Feb 6, 2026

Native Japanese Transcriber, 1 hr/day, Remote (Japan Only)

OpenTrain AI seeks native Japanese speakers in Japan to transcribe short audio clips and verify audio quality; long-term, flexible schedule (~1 hour/day, Mon–Fri) at $15/hr. Must follow strict guidelines and complete a short screening sample.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $15/hr

Posted Feb 5, 2026

Native Italian Transcriptionist, Italy, 1 hr/day

Join OpenTrain to transcribe short Italian audio clips for a long-term, flexible role (~1 hour/day, Mon–Fri). Work remotely from Italy using Labelbox, complete a short screening sample, and earn $11/hr while helping train speech AI.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $11/hr

Posted Feb 5, 2026

Egocentric Video Annotator, C1 English

OpenTrain is hiring part-time contractor annotators to create dense, multi-tier captions and sub-second trajectory labels for first-person video. C1 English, strong timestamping skills, and availability for a February pilot required; pay is USD 8/hour.

Image & Video Annotation
Video
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $8/hr

Posted Feb 2, 2026

Japanese PDF Annotator & QA Reviewer

Native Japanese speakers in Japan needed to annotate and QA Japanese PDFs: draw bounding boxes, classify elements, correct OCR, and create simple HTML table descriptions. Pilot 2–3 hours; ongoing flexible contractor work. Pay: $18/hr (Annotator), $20/hr (QA).

General Annotation
Document
Remote · Worldwide
Flexible hours
Intermediate level
Hourly · $18/hr

Posted Jan 29, 2026

Part-Time Energy Content Writer, 1 Hour/Month

OpenTrain is hiring an entry-level content writer to produce and review energy-focused text with occasional annotation work in AWS SageMaker; this contract is roughly one paid hour per month for a fixed $100 fee. Remote worldwide — you must set up equipment/accounts and be punctual for any scheduled

Writing & Editing
Text
Remote · Worldwide
Flexible hours
Entry level
Fixed price · $100

Posted Jan 17, 2026

Board-Certified Radiologist, CT/MRI Annotation

Seeking US-based, board-certified radiologists (MD) to perform CT and MRI DICOM annotation (polygon, segmentation, diagnostic labels) for a contract radiology project; hourly pay $150 and contracted through OpenTrain AI.

Medical & Health
Medical Dicom
Remote · Worldwide
Flexible hours
Entry level
Hourly · $150/hr

Posted Jan 15, 2026

Bounding Box Labeler, Purple-Outlined Game Characters

Label bounding boxes around purple-outlined characters for a YOLO training dataset using Roboflow; pay is $0.02 per labeled image. Part-time contractor work (worldwide, <20 hrs/week) for intermediate image-annotation contributors.

Image & Video Annotation
Image
Remote · Worldwide
Part-time · Flexible
Intermediate level
Per task · $0.02/label

Posted Jan 13, 2026

LLM Agent Evaluation Scenario Writer

Design structured evaluation scenarios and gold-standard behaviors for LLM-based agents in a remote, part-time contractor role (20+ hrs/week). Pay $18–$24/hr; requires QA-style thinking, basic Python/JavaScript, and strong written English.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $18–$24/hr

Posted Jan 13, 2026

Native Korean Transcription Specialist

Transcribe short Korean recordings and review audio quality from South Korea in a flexible, long-term role averaging about one hour per weekday. Earn $14 per hour while helping improve speech technology.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $14/hr

Posted Jan 7, 2026

Native French Transcriber, France, 1 hr/day

Long-term remote contract for native France-based French speakers to transcribe short conversational audio ~1 hour/day on a flexible schedule at $15/hr. Accurate, rule-driven transcripts and simple audio verification tasks required; a short screening sample is part of the process.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $15/hr

Posted Jan 7, 2026

Hebrew-English Bilingual Language Evaluator

Work remotely as a Hebrew–English bilingual evaluator, reviewing and improving AI-generated text for accuracy, clarity, and reasoning. Part-time contractor role at $32/hr (under 20 hrs/week) for experienced translators, editors, or linguistic QA specialists.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $32/hr

Posted Dec 26, 2025

Private Wealth Management QA Specialist

Create 150 private-wealth Q&A pairs and evaluate model responses against certified-advisor standards, assigning 1–10 ratings. Remote, contract, part-time project (under 20 hrs/week) with a fixed fee of $500, open worldwide to finance professionals.

Legal & Finance
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $500

Posted Dec 19, 2025

Korean–English Localization & LQA Specialist

Part-time contract role for Korean–English localization experts based in South Korea: evaluate and improve AI-generated Korean outputs using MQM/LQA, CAT workflows, and terminology management. Up to 20 hrs/week at $27/hr.

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $27/hr

Posted Dec 19, 2025

Japanese–English Localization & LQA Specialist

OpenTrain AI is hiring an experienced Japanese–English localization and LQA specialist to evaluate AI-generated translations, correct outputs, and rate responses using structured criteria. Part-time contractor (remote, worldwide) under 20 hrs/week at $30/hr.

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $30/hr

Posted Dec 19, 2025

Spanish–English Localization & LQA Specialist (Spain)

Part-time contractor role for Spain-based localization professionals to evaluate and improve AI-generated Spanish (Spain) outputs; $24/hr, under 20 hrs/week. Requires native/nearly native Spanish, C1+ English, 5+ years localization experience, and strong MQM/LQA and CAT-tool skills.

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Dec 19, 2025

German–English Localization & Translation Specialist

OpenTrain AI seeks a Germany-based contract localization expert to evaluate and improve AI-generated German outputs. Part-time (up to 20 hrs/week) work using MQM/LQA and CAT-tool workflows at $35/hr — ideal for seasoned localization professionals.

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $35/hr

Posted Dec 19, 2025

Chinese (Simplified)–English Localization & LQA Specialist

OpenTrain seeks an experienced Chinese (Simplified)–English localization and LQA specialist to review and improve AI-generated translations. Part-time, remote contractor role (worldwide), under 20 hrs/week at $24/hr.

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $24/hr

Posted Dec 19, 2025

Bash & PowerShell Engineer, Script Review & Automation

Evaluate AI-generated Bash and PowerShell scripts: find bugs, security risks, and portability issues; rate responses and author model solutions. Mid‑senior US‑based contractors with 2–3+ years of scripting experience, Bachelor's required — part‑time up to 20 hrs/week at $40/hr.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $40/hr

Posted Dec 19, 2025

Polish Data Annotator, Remote, Part- or Full-Time

Annotate Polish text, audio, and images for AI training at $20/hr—verify transcriptions, tag entities, and apply sentiment and semantic labels. Flexible remote contractor roles for full-time (8 hrs/day) or part-time (min 20 hrs/week).

Translation & Localization
Image
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $20/hr

Posted Dec 18, 2025

Dutch Native Two-Person Conversation Recording

Record five short Dutch conversations with another speaker (about 1.5 hours total) and earn a fixed $100 payment; four street-style and one in-car scenario. Fully remote and open worldwide — all recordings must be completed before Monday.

Audio & Speech
Audio
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $100

Posted Dec 17, 2025

AI Data Annotation Specialist

Join OpenTrain AI as a part-time contractor annotating programming and related datasets; this remote role is open to Indian nationals based in India, requires a Bachelor's in Computer Science or related and expert annotation skills, and offers a fixed USD 10 payment with under 20 hours/week expected

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Expert level
Fixed price · $10

Posted Dec 17, 2025

Automotive CAN Signal Dataset Generator

Generate a training dataset that maps natural-language vehicle use cases to lists of CAN signals using OpenTrain's proprietary tooling; fixed-price contractor role paying $2,000 USD. Subject-matter expertise in automotive CAN signals is required.

Data Collection
Document
Remote · Worldwide
Flexible hours
Intermediate level
Fixed price · $2000

Posted Dec 15, 2025

Mechanical Engineering AI Trainer, Python Required

Join OpenTrain AI to train and evaluate advanced models by writing computational mechanical engineering problems and verified Python solutions. Part-time, remote work (under 20 hrs/week) for candidates with BSc+1yr or MSc/PhD and C1 English—paid up to $45/hr.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $10–$45/hr

Posted Dec 12, 2025

Native Malay Dictionary Proofreader (Remote Contract)

Proofread Malay dictionary entries: confirm Malay words, correct spellings, and fix phonemic pronunciations using a specified phoneme set. Remote contract for native Malay speakers with ~3+ hours/day availability; paid $6 per 1,000 words (project budget $100).

Translation & Localization
Text
Remote · Worldwide
Part-time · Flexible
Expert level
Fixed price · $100

Posted Dec 10, 2025

Architectural Floor Plan Segmentation Labeler

Label polygon masks and occupancy types on architectural floor-plan images using Roboflow to train a room-detection segmentation model. Part-time contractor work, remote worldwide — pay $10/hr, about 20+ hours/week.

Image & Video Annotation
Image
Remote · Worldwide
Part-time · Flexible
Intermediate level
Hourly · $10/hr

Posted Dec 5, 2025

Financial Document Collection & Annotation Specialist

Create anonymized financial document + structured JSON ground-truth pairs to help benchmark and evaluate AI models; contractor, part-time, fixed-price $300, remote worldwide. Intermediate applicants with retail wealth-management familiarity are strongly encouraged to apply.

Legal & Finance
Document
Remote · Worldwide
Part-time · Flexible
Intermediate level
Fixed price · $300

Posted Dec 5, 2025

10-Question Survey for AI Trainers

Share your experience training AI by answering ten open-ended questions about pay, job security, workplace, and the highs and lows of this work. Open worldwide to people who have worked in AI training; part-time contractor project with a fixed price of $0 USD.

Generative AI & RLHF
Text
Remote · Worldwide
Part-time · Flexible
Entry level
Fixed price · $0

Posted Dec 5, 2025

Senior Data Science Task Designer (Python & SQL)

Design and implement realistic, end-to-end data science problems used to train and evaluate advanced AI systems. Senior quantitative candidates with 5+ years of hands-on data science, expert Python and strong SQL skills, paid $50/hr as a part-time contractor.

Coding & Software
Computer Code Programming
Remote · Worldwide
Part-time · Flexible
Entry level
Hourly · $50/hr

Posted Dec 3, 2025

Video Moment Annotation For Food Clips

Annotate cooking and food videos by marking precise start/end times for actions, classifying action types and objects, and writing visually grounded descriptions for CLIP training. Contract, remote, worldwide work paid at $0.05 per labeled moment using Label Studio.

Image & Video Annotation
Video
Remote · Worldwide
Flexible hours
Entry level
Per task · $0.05/label

Posted Nov 19, 2025

What this work can involve

AI training work helps prepare and review examples used by artificial-intelligence systems. Depending on the individual role, that can 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. For applicants located in Slovakia, the relevant posting determines which tasks apply and what the work requires.

  • Read each posting to understand the specific task, project scope, and responsibilities.
  • A role may focus on language, visual, audio, search, coding, or subject-matter work, depending on its description.
  • The individual posting is the source of truth for whether the role accepts applicants located in Slovakia.

How hiring works through OpenTrain

OpenTrain is the hiring organization for these public roles, and candidates apply through OpenTrain. After a successful application, OpenTrain may place or refer the candidate to the client whose project they will support. The individual posting provides the role-specific information, including eligibility and other requirements, so review it before applying.

  • Apply through OpenTrain rather than directly to an unnamed third-party platform.
  • Confirm in the individual posting that applicants located in Slovakia are eligible.
  • Check the posting for the responsibilities, qualifications, hours, pay, and location rules that apply to that role.

Frequently asked questions

What can this work involve?
AI training and data labeling work can involve creating or reviewing examples for artificial-intelligence systems. Depending on the role, tasks may include labeling images or video, transcribing or recording audio, writing or rating responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. The individual posting explains which activities are included.
Where can I find role-specific details?
Find the current details in each individual live posting. That posting is the only source of truth for eligibility in Slovakia, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements. Review the posting carefully because these details can differ between roles and may change.
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. Review the individual posting for the role-specific requirements and application information.