Find remote AI training and data labeling jobs open to applicants in Serbia.
Lead AI training reviews for computational materials science, evaluating simulations, scientific code, and model outputs. The role requires advanced materials expertise, programming skills, and at least 40 hours per week with PST overlap.
Posted Oct 23, 2026
Evaluate large language model responses by writing challenging prompts, spotting reasoning and factual errors, and giving evidence-based feedback. This worldwide, part-time contract role requires 20+ hours each week, fluent written English, a relevant master's degree, and three years of experience.
Posted Oct 23, 2026
Lead a pod evaluating mathematical terminal tasks for correctness, reproducibility, grading quality, and scientific rigor. This remote, four-week contractor role requires 20+ hours weekly and advanced mathematics experience.
Posted Oct 23, 2026
Review AI-generated conversations for safety, accuracy, and policy compliance, then rate responses and explain your decisions. This remote, part-time contract role requires professional English and 20 or more hours each week.
Posted Oct 23, 2026
Work on Image Annotation QA by reviewing language model answers, checking facts, and writing detailed feedback. This worldwide, part-time contract role requires strong English and 20+ hours per week.
Posted Oct 23, 2026
Classify short AI-generated audio clips by instrument family and specific instrument. This remote, part-time contract role is open worldwide and suits music professionals with a trained ear.
Posted Oct 23, 2026
Create stylized 3D models and digital assets from briefs and references in a remote 8 to 10 week project. Use materials, lighting, rendering, and optimization skills while working part time or up to 40 hours weekly.
Posted Oct 22, 2026
Review AI-generated responses for relevance, accuracy, helpfulness, and personalization. This remote 16-week project pays $25 per hour for 20 hours weekly, with eligibility for up to 40 hours.
Posted Oct 22, 2026
Review AI conversations, identify missing context, and suggest follow-up questions that improve recommendations. This part-time contractor role requires 20 or more hours per week, English fluency, and relevant professional experience.
Posted Oct 21, 2026
Evaluate AI-generated speech and conversations in UK English for $18 to $20 per hour. Review pronunciation, fluency, transcription, and conversational accuracy in a worldwide contractor role.
Posted Oct 20, 2026
Evaluate large language model responses using business-analysis expertise, create challenging prompts, and write detailed feedback. This remote contract role expects 20+ hours weekly, excellent English, a relevant master’s degree, and three years of experience.
Posted Oct 20, 2026
Evaluate AI-generated business analysis responses, create difficult test prompts, and explain factual or reasoning errors. This part-time contractor role is worldwide, requires English fluency, and involves 20+ hours weekly.
Posted Oct 20, 2026
Help improve large language models by creating analytical scenarios, checking claims, evaluating answers, and writing detailed feedback. This entry-level remote role requires 20+ hours per week, strong English skills, and careful logical reasoning.
Posted Oct 20, 2026
Create advanced, non-code scientific reasoning tasks and expert reference answers for AI evaluation. This remote, part-time contract requires strong life sciences research experience and fluent English.
Posted Oct 20, 2026
Review sperm detection and motility labels in reconstructed microscopy videos for an AI-assisted semen analyzer. This contract role suits experienced semen-analysis professionals familiar with WHO grading.
Posted Oct 19, 2026
Design complex computational life sciences tasks that test how AI agents inspect data, write code, troubleshoot, analyze results, and explain scientific findings. This remote five-week contractor assignment pays $300 per approved task.
Posted Oct 17, 2026
Research difficult questions, build answerable AI benchmark tasks, and test language models for weaknesses. This contract role is open worldwide, requires fluent English, and involves 20 or more hours per week.
Posted Oct 17, 2026
Review stylized 3D models, materials, and AI outputs against project guidelines. This remote eight-week project pays $7 per hour and requires at least 20 hours per week.
Posted Oct 17, 2026
Compare short audio and video clips, then choose the option that best matches each query. This entry-level role is open worldwide, requires English proficiency, headphones, and 20+ hours per week.
Posted Oct 17, 2026
Review nutrition and dietary data for AI systems by checking food details, dietary patterns, and nutrition content for accuracy, safety, and relevance. This flexible contract role requires biology or a related background and 20+ hours per week.
Posted Oct 17, 2026
Evaluate AI-generated nutrition content and label dietary data for models used in nutrition tracking, coaching, and research. This remote, eight-week contractor assignment is open worldwide, requires English fluency, and needs 20+ hours per week.
Posted Oct 17, 2026
Lead a pod of 5 to 10 technical trainers creating and evaluating terminal-based mechanical and aerospace engineering tasks. This remote contractor project lasts about four weeks and requires at least 40 hours each week, including Pacific Time overlap.
Posted Oct 16, 2026
Lead remote AI training work built around mechanical design, CAD/CAE, simulation, testing, and failure analysis. Create verifiable engineering problems and evaluate AI systems against real physical criteria.
Posted Oct 16, 2026
Review complex biology problems and AI-generated answers, assess evidence and methods, and document scientifically supported decisions. The role is open worldwide, requires professional fluency in English, and offers part-time work of 20 or more hours per week.
Posted Oct 16, 2026
Work remotely as a Business Analyst evaluating chatbot responses against business requirements and defined criteria. This 16-week freelance project requires 20+ hours per week across five working days.
Posted Oct 15, 2026
Manage contributor capacity, resource planning, tracking systems, and chatbot evaluation across AI training projects. This remote, project-based freelance engagement runs for 16 weeks and requires 20 or more hours per week.
Posted Oct 15, 2026
Review computer-using AI agent responses, research claims, solve reasoning tasks, and write clear feedback. This worldwide, part-time contract role requires strong English and offers 20+ hours per week.
Posted Oct 15, 2026
Review complex dermatology cases, resolve clinical disagreements, and evaluate AI outputs in a remote, four-week consulting engagement. The role is for experienced academic dermatologists with US credentials and subspecialty training.
Posted Oct 15, 2026
Review, debug, and improve AI-generated code while evaluating technical explanations in your language of expertise. This remote contractor assignment requires 20+ hours weekly for four weeks and includes Pacific Time overlap.
Posted Oct 14, 2026
Work remotely for eight weeks, 20 or more hours per week, reviewing nutrition AI outputs and labeling food and dietary data. Nutrition, dietetics, or food science experience is required, and applications begin through OpenTrain.
Posted Oct 14, 2026
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.
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.
