Looking for remote AI training or data labeling work open to applicants located in Portugal? OpenTrain is the hiring organization for these roles. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support. Each live posting determines eligibility and provides the responsibilities, qualifications, hours, location rules, pay, and other details for that role.
Use FreeCAD and real-world manufacturing expertise to create production-ready mechanical models, drawings, and assembly documentation for AI training. This remote contractor role offers approximately 15 to 20 hours per week at $40 to $100 per hour.
Posted Aug 19, 2026
Bring 5+ years of power electronics or PCB design experience to advanced AI training work. Design and evaluate power circuits, PCB layouts, and verification frameworks remotely for 20+ hours per week.
Posted Aug 18, 2026
Use professional accounting and audit expertise to review financial documents and strengthen AI systems. This remote contractor role offers $40-$95 per hour and 20+ hours per week.
Posted Aug 18, 2026
Use advanced Excel, PowerPoint, and Word expertise to create realistic business scenarios, evaluate AI-generated work, and provide actionable feedback remotely for $35-$50 per hour.
Posted Aug 17, 2026
Use your legal expertise to evaluate US legal documents and help improve AI systems. This remote contractor role offers flexible work at $140-$400 per hour for 20+ hours weekly.
Posted Aug 17, 2026
Use professional music production and critical listening skills to evaluate AI-generated songs, lyrics, and vocals in Slovak and English. This flexible remote contract pays $20-$36 per hour.
Posted Aug 17, 2026
Use your 911 dispatch expertise to evaluate emergency-response AI, review incident communications, and develop realistic scenarios. This remote contract offers flexible work under 20 hours per week and pays $30 to $65 per hour.
Posted Aug 16, 2026
Turn public records and lengthy source materials into accurate articles and summaries that help train next-generation AI systems. This worldwide, part-time contract role pays $40-$75 per hour.
Posted Aug 16, 2026
Use your technical B2B sales expertise to qualify wholesale leads, communicate product value, and improve AI training workflows remotely. This contractor role pays $45 to $85 per hour and calls for 20 or more hours weekly.
Posted Aug 16, 2026
Use six or more years of technology project leadership experience to help improve AI models through real-world management scenario evaluation. This worldwide, part-time contract pays $70 to $130 per hour.
Posted Aug 16, 2026
Use your Tier 2 or Tier 3 IT expertise to help train AI systems through ticket analysis, troubleshooting documentation, and clear technical feedback. This remote contractor role pays $30-$55 per hour and supports flexible schedules of 20+ hours per week.
Posted Aug 16, 2026
Design learning pathways, digital materials, and assessments that help shape how next-generation AI systems learn. This remote contractor role offers flexible work of under 20 hours per week at $40-$75 per hour.
Posted Aug 16, 2026
Use your preclinical drug discovery expertise to evaluate scientific data and AI model outputs shaping the future of pharmaceutical development. This worldwide, part-time contract offers $60-$100 per hour.
Posted Aug 16, 2026
Evaluate next-generation AI coding agents by reviewing their workflows, debugging Python outputs, and validating technical results. This remote contractual role requires expert Python engineering experience and practical experience building or using LLM-powered agents.
Posted Aug 15, 2026
Use senior HR expertise to design scenarios, reference answers, and evaluation rubrics for AI systems working across talent, employee relations, and organizational design. This worldwide remote contract pays $70-$80 per hour.
Posted Aug 15, 2026
Use five or more years of insurance expertise to design realistic AI evaluation tasks covering underwriting, claims, actuarial work, reinsurance, and compliance. Contract remotely with OpenTrain for $50-$60 per hour and 20+ hours weekly.
Posted Aug 15, 2026
Use your enterprise IT leadership and systems architecture expertise to evaluate AI tools through structured discussions and written reviews. This remote contractor role offers $60-$75 per hour, about 20 hours weekly, and flexible scheduling.
Posted Aug 15, 2026
Apply your contract, compliance, and legal research expertise to AI training work reviewing legal documents and data. This remote contractor role pays $60-$75 per hour and requires 20+ hours weekly.
Posted Aug 15, 2026
Use your financial reporting, audit, tax, and compliance expertise to evaluate documents, build finance scenarios, and improve AI systems. This remote contractor role pays $60-$75 per hour for 20+ hours per week.
Posted Aug 15, 2026
Use your software development expertise to review code, shape technical AI training data, and improve model performance. This remote contractor role pays $60-$75 per hour and requires 20+ hours weekly.
Posted Aug 15, 2026
Use your film and television production expertise to design realistic AI evaluation tasks, production artifacts, and detailed rubrics. This remote contract role offers flexible work for experienced production professionals.
Posted Aug 14, 2026
Evaluate short videos of robots and people performing actions, compare instruction compliance, and improve AI-generated annotations. This remote contractor role offers flexible 20+ hour weeks and $15-$80 hourly pay.
Posted Aug 14, 2026
Evaluate Hebrew speech and AI-generated audio using detailed rubrics, linguistic judgment, and evidence-based feedback. This remote contractor role offers flexible part-time work at $30-$65 per hour.
Posted Aug 14, 2026
Review AI-generated Indonesian speech for pronunciation, fluency, naturalness, and cultural accuracy. Work remotely for 20+ hours weekly at $60 to $65 per hour.
Posted Aug 14, 2026
Help improve AI language systems by evaluating short Dutch speech clips for fluency, pronunciation, grammar, and authenticity. This remote contractor role offers 20+ hours per week at $30-$65 per hour.
Posted Aug 14, 2026
Use your 911, emergency, police, ambulance, or fire communications experience to help train AI on incident prioritization, routing, and escalation workflows. This remote contractor role offers flexible task-based work listed at $30-$55 per hour.
Posted Aug 14, 2026
Evaluate Italian audio for nativeness, fluency, pronunciation, and linguistic authenticity while helping improve AI speech systems. This remote contractor role pays $30 to $65 per hour and requires 20+ hours weekly.
Posted Aug 14, 2026
Evaluate Bengali audio and AI-generated speech for nativeness, fluency, pronunciation, and intonation. This worldwide contractor role offers flexible part-time work at an advertised rate of $30-$65 per hour.
Posted Aug 14, 2026
Evaluate Russian audio and AI-generated speech for fluency, pronunciation, intonation, and authenticity. This flexible remote contract role offers $30-$65 per hour and requires native-level Russian plus B2 English.
Posted Aug 14, 2026
Evaluate Tamil audio and AI-generated speech for nativeness, fluency, pronunciation, and intonation. This remote contractor role offers flexible part-time work at $30-$65 per hour for Tamil language experts.
Posted Aug 14, 2026
AI training work involves preparing and reviewing examples used by artificial-intelligence systems. Roles open to applicants located in Portugal can involve annotating 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 live posting explains which responsibilities and requirements apply.
OpenTrain is the hiring organization for roles open to applicants located in Portugal. 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 other role-specific detail.
