[Remote] AI Research Jobs in Canada (Remote, Full-Time)

Note: The job is a remote job and is open to candidates in USA. Rex.zone is a company focused on AI research, and they are seeking an AI Researcher to support end-to-end research and applied experimentation for modern AI systems. The role involves designing experiments, defining evaluation protocols, and improving evaluation rigor through robust measurement and QA evaluation workflows.ResponsibilitiesDevelop and run AI research experiments across NLP, computer vision, and multimodal settingsDesign evaluation harnesses for large language model evaluation, including offline/online metricsDefine RLHF and preference modeling evaluation protocols (rubrics, sampling plans, inter-rater reliability)Partner with data labeling teams to improve training data quality and annotation guidelines compliancePerform error analysis, ablation studies, and prompt evaluation to identify failure modesBuild reproducible pipelines for dataset curation, data labeling audits, and QA evaluationTranslate research findings into engineering-ready requirements and measurable acceptance criteriaSupport content safety labeling strategy and risk analysis for model outputsSkillsAI research and machine learning research fundamentalsExperience with large language models and model evaluationHands-on RLHF concepts (preference data, reward modeling, evaluation)Strong experiment design and statistics basicsFamiliarity with training data quality practices and dataset documentationNLP and/or computer vision domain knowledgeAbility to collaborate cross-functionally with engineering and data operationsCompany OverviewRemoExperts (by Abaka AI) is a global platform where skilled professionals and tutors contribute to AI training across video, image, audio, text, code, math, and more. It was founded in 2025, and is headquartered in Palo Alto, California, US, with a workforce of 201-500 employees. Its website is https://www.remoexperts.com.



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