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Remote AI training and data labeling jobs in Serbia

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

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

Team Management Coding Agent Benchmark Engineer

Design realistic software engineering tasks, tests, evaluators, and safety checks for coding agents. This contract role is open worldwide, requires 20+ hours weekly, and uses English.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Oct 7, 2026

Bioinformatics Computational Genomics Expert

Design challenging bioinformatics and computational genomics tasks for AI evaluation using Python, Linux, and real biological data formats. This remote five-week contractor assignment pays $150 per approved task.

Generative AI & RLHF
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $150/label

Posted Oct 7, 2026

GenAI Security Evaluation Engineer (Up to $150/hr)

Build vulnerable and fixed GenAI agent and RAG codebases, test security tools, and annotate risks for up to $150 per hour. The role requires application security experience, English fluency, and 20+ hours weekly.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Hourly · $150/hr

Posted Oct 7, 2026

Python Backend Developer for Computer Science (STEM)

Build Python connectors and create evaluation tasks for AI agents in a remote, four-week contractor engagement. Complete at least one approved task per day and earn $300 per approved task.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $300/label

Posted Oct 4, 2026

Senior AI Engineer, Data Quality And Pipeline Automation

Evaluate AI model outputs and automate data pipeline quality using LLM agents, observability tools, anomaly detection, and forecasting. The role requires 40 hours per week, including six hours aligned with IST each day.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Oct 2, 2026

Life Sciences Scientific Reasoning Expert

Design graduate-level life sciences problems that test AI systems on experiments, biological data, figures, sequences, and research evidence. The partner title and supplied description name different subjects. Review the duties and qualifications before applying.

Generative AI & RLHF
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Oct 2, 2026

Mathematics Expert

Create and solve advanced physics problems used to evaluate AI models, write step-by-step solutions, and build benchmarks across undergraduate to PhD-level topics. This remote 12-week contractor role requires at least 20 hours per week and strong English writing.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Oct 2, 2026

Strategic Project Lead Software Engineering

Lead software engineering data programs that turn research goals into coding tasks, reviews, benchmarks, and evaluation workflows. This worldwide contractor role requires at least 20 hours per week and professional English.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 30, 2026

Voice Actors (Spanish) With Studio-Grade Experience

Record polished Spanish voice-over audio from provided scripts in a remote setup. The role pays USD 200 per finished hour plus a one-time USD 20 onboarding and setup fee, with 20+ hours per week.

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

Posted Sep 24, 2026

Scientific Computing / Research Engineering Expert , Earth

Create terminal-based AI benchmark tasks from real Earth science workflows using Python, R, Julia, Bash, and Linux. This five-week contractor assignment pays $300 per approved task and requires 20+ hours per week.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $300/label

Posted Sep 24, 2026

Agentic Life Science Expert

Design and grade multi-step computational life sciences tasks that test AI agents on real scientific workflows. This remote five-week contract pays $280 per approved task and requires 20+ hours each week.

Coding & Software
Computer Code Programming
Remote · Worldwide
English
Part-time · Flexible
Entry level
Per task · $280/label

Posted Sep 22, 2026

Digital Imaging Specialist and Digital Artist

Edit, retouch, and annotate 2D and 3D design assets for AI training from anywhere. This contractor project runs 8 to 10 weeks and requires at least 20 hours per week.

Image & Video Annotation
Image
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 21, 2026

Senior Accounting and Finance AI Advisor

Work remotely as a senior accounting and finance AI advisor, analyzing financial data, answering complex questions, and creating practical recommendations. The contract supports 20 or more hours per week for an initial 10 weeks.

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

Posted Sep 18, 2026

Business Analyst (Turkish Language)

Review and improve AI-generated content through research, summaries, analytical answers, and detailed feedback. Use fluent Turkish and English in a flexible remote contract requiring 20+ hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
Turkish, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Business Analyst (Norwegian)

Work remotely on LLM training tasks involving research, analytical questions, scenario creation, and detailed feedback. Professional fluency in Norwegian and English is required, with 20+ hours per week expected.

Generative AI & RLHF
Text
Remote · Worldwide
Norwegian, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Business Analyst (Japanese Language) for AI Evaluation

Review Japanese and English language model outputs, solve analytical questions, and write clear feedback that helps improve AI systems. This remote, part-time contract role requires 20 or more hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
Japanese, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Business Analyst (French Language)

Work remotely as a Business Analyst (French Language), evaluating LLM responses and creating text-based reasoning data for 20+ hours each week. Review the described duties and qualifications before applying.

Generative AI & RLHF
Text
Remote · Worldwide
French, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

Business Analyst (Spanish)

Work remotely as a Spanish and English Business Analyst helping improve AI through research, reasoning, scenario writing, and detailed content evaluation. The role requires 20 or more hours each week and some overlap with US hours.

Generative AI & RLHF
Text
Remote · Worldwide
Spanish, English
Part-time · Flexible
Entry level

Posted Sep 11, 2026

CAD & Simulation Consultant | Engineering Design

Remote contractor work for a CAD and simulation consultant supporting aerospace, mechanical, and electrical engineering AI training. The 8-week assignment requires 20 to 40 hours weekly and Pacific Time overlap.

General Annotation
Document
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 8, 2026

Business Analyst (Thai Language) for AI Training

Work remotely as a Business Analyst (Thai Language), analyzing Thai and English content for AI training. Use research, logic, writing, and data skills for 20 or more hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
Thai, English
Part-time · Flexible
Entry level

Posted Sep 7, 2026

Small Business Owners: English AI Document Evaluator

Evaluate AI chatbot responses for practical small business situations using English business documents. Compare outputs, write structured judgments, and complete project-based work for 20+ hours weekly over 16 weeks.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 5, 2026

Character Illustrator, Sketcher, Cartoonist (English)

Create digital character illustrations from references, preserve character identity, and adapt artwork across styles such as cinematic, vintage, surreal, and glitch art. Work remotely with flexible participation and use your portfolio to support your application.

Image & Video Annotation
Image
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Sep 3, 2026

Web Research Specialist (English, Benchmark Design)

Design difficult, verifiable web research questions for AI browsing benchmarks. This worldwide contract role requires fluent written English, strong source checking, and 20+ hours each week, with $30 paid per label.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Intermediate level
Per task · $30/label

Posted Aug 28, 2026

Art Domain Expert for AI Evaluation

Use your fine arts or visual arts expertise to write challenging prompts, evaluate AI responses, and build benchmark datasets. The role requires strong written English, advanced subject knowledge, and 20 or more hours each week.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 19, 2026

Political Science Domain Expert

Evaluate large language model responses on political science, governance, elections, public policy, and international relations. This contractor assignment runs for eight weeks and requires 40 hours per week with Pacific Time overlap.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 15, 2026

Sports Domain Expert for LLM Evaluation

Create sports prompts, evaluate AI-generated answers, and build benchmark tests for an eight-week remote contractor assignment. You will assess accuracy, reasoning, completeness, and nuance across sports topics.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 11, 2026

Music Domain Expert for AI Response Evaluation

Evaluate AI-generated responses about music theory, composition, genres, production, notation, and music history. This remote contractor role requires English fluency, 20+ hours per week, and an eight-week commitment; compensation is not disclosed.

Generative AI & RLHF
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 10, 2026

AI Evaluator (English), Resident Medical Specialist (MD/DO)

Evaluate how AI systems handle clinical reasoning by creating realistic medical cases, building assessment frameworks, and judging model performance. This remote freelance engagement requires 20+ hours per week and starts with a one-month term.

Medical & Health
Text
Remote · Worldwide
English
Part-time · Flexible
Entry level

Posted Aug 3, 2026

What this work can involve

Roles open to applicants located in Serbia can involve preparing or reviewing data 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. The live posting sets the responsibilities and eligibility rules for that role, so read it for the applicable details.

  • Work may focus on language, media, search, code, written responses, or another AI-training activity specified in the posting.
  • Location in Serbia does not determine the task type. The individual live posting controls the work and eligibility.

How hiring works through OpenTrain

OpenTrain is the hiring organization for roles open to applicants located in Serbia, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Refer to each individual live posting for every role-specific detail.

  • Candidates apply through OpenTrain.
  • Each live posting provides the details that apply to that opportunity.

Frequently asked questions

What can this work involve?
AI training and data labeling work can involve preparing or reviewing examples for artificial-intelligence systems. A posting may specify image or video annotation, audio transcription or recording, response writing or rating, search-result evaluation, translation, code review, or subject-matter tasks. The individual posting determines the actual responsibilities.
Where can I find role-specific details?
Find role-specific details in the individual live posting. It is the source of truth for whether applicants located in Serbia are eligible, as well as the responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements.
How does hiring work through OpenTrain?
OpenTrain is the hiring organization for these roles, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. Refer to the individual live posting for every other hiring and role-specific detail.