Remote Data Labeling Jobs in Ottawa

Rex.zone is hiring for remote data labeling jobs aligned to Ottawa job seekers supporting AI/ML training workflows. As a data labeling professional, you will create and evaluate high-quality training data for large language models and computer vision systems through RLHF, prompt evaluation, QA evaluation, and annotation guidelines compliance. Your work directly impacts training data quality, model performance improvement, and scalable LLM training pipelines across NLP, named entity recognition, content safety labeling, and image/video annotation. Explore this full-time remote role at Rex.zone to help AI labs, tech startups, and annotation vendors ship safer, more accurate models.

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Remote Data Labeling Jobs in Ottawa — LinkedIn Job Metadata

Title: Remote Data Labeling Jobs in Ottawa | Date: 25-02-2026 | Company: Rex.zone | Country: US | Remote Type: Remote | Employment Type: FULL_TIME | Experience Level: Mid-Senior | Industry: Technology | Job Function: Engineering | Skills: Data Labeling, Data Annotation, RLHF, Prompt Evaluation, QA Evaluation, Named Entity Recognition, Computer Vision Annotation, Content Safety Labeling, Annotation Guidelines Compliance, Training Data Quality | Salary Currency: USD | Salary Min: 63360 | Salary Max: 126720 | Pay Period: YEAR

About the Role

You will perform remote data labeling and evaluation tasks that power real-world AI/ML training workflows. Responsibilities include producing gold-standard annotations, completing RLHF preference ranking, running prompt evaluation for instruction-following behavior, and executing QA evaluation to ensure consistent training data quality. Projects may span NLP (intent, sentiment, NER), computer vision annotation (bounding boxes, polygons, keypoints), and content safety labeling for policy compliance, with feedback loops that drive model performance improvement.

What You Will Do

Label and review text, image, audio, or video data using project-specific annotation tools and taxonomies. Follow annotation guidelines compliance requirements and document edge cases for consistent decision-making. Complete RLHF tasks such as preference ranking, pairwise comparisons, and rubric-based scoring for LLM outputs. Perform prompt evaluation and response grading for helpfulness, correctness, and safety. Execute QA evaluation: auditing samples, measuring inter-annotator agreement, and escalating ambiguity. Apply named entity recognition (NER) labels and structured extraction schemas for NLP datasets. Support computer vision annotation including bounding boxes, segmentation masks, and keypoint labeling when assigned. Contribute to content safety labeling for policy categories (hate, harassment, self-harm, sexual content) as required. Provide feedback to improve annotation guidelines, reduce ambiguity, and increase throughput without sacrificing quality.

Required Qualifications

Mid-Senior experience with data labeling or data annotation in AI/ML production settings. Demonstrated ability to interpret rubrics and maintain annotation guidelines compliance across complex edge cases. Experience with LLM evaluation workflows (RLHF, prompt evaluation, or QA evaluation). Strong written communication and structured reasoning for labeling rationale and dispute resolution. Comfort working remotely with asynchronous collaboration, quality targets, and audit-driven processes.

Preferred Qualifications

Experience with named entity recognition, taxonomy design, or dataset curation for NLP pipelines. Exposure to computer vision annotation methods (detection, segmentation, keypoints) and quality checks. Prior work on content safety labeling, trust & safety, or policy-based evaluation. Familiarity with measuring training data quality metrics such as consistency, coverage, and error typology. Understanding of how annotation decisions affect model behavior and model performance improvement.

Workflow and Quality Standards

Work is guided by rubrics, sampling plans, and QA evaluation gates to protect training data quality. You will collaborate with leads on guideline iterations, calibration sessions, and disagreement resolution. Success is measured by accuracy, consistency, throughput, and actionable feedback that improves LLM training pipelines.

Who This Role Is For

Candidates seeking remote, full-time data labeling jobs connected to Ottawa while working with US-based teams. Professionals who enjoy detailed rubric-based decisions, edge-case reasoning, and high-precision labeling. Annotators interested in NLP, computer vision annotation, RLHF, and content safety labeling projects.

Apply on Rex.zone

Visit Rex.zone and search for this posting using the slug: remote-data-labeling-jobs-ottawa. Complete your profile, highlight relevant annotation projects, and submit your application for review. Qualified applicants may be invited to an online assessment focused on annotation guidelines compliance and QA evaluation.

Frequently Asked Questions

  • Q: Are these truly remote data labeling jobs for Ottawa candidates?

    Yes. The role is Remote and designed for applicants aligned with Ottawa while collaborating with US-based teams through Rex.zone.

  • Q: Is this a full-time position and what is the experience level?

    Yes. Employment Type is FULL_TIME and the Experience Level is Mid-Senior.

  • Q: What kinds of data labeling tasks will I work on?

    Typical tasks include data annotation for NLP and computer vision, RLHF preference ranking, prompt evaluation, QA evaluation audits, named entity recognition, and content safety labeling depending on project needs.

  • Q: How does this role connect to LLM training pipelines?

    Your labels and evaluations become supervised training data and reward-model signals, improving training data quality and driving model performance improvement for large language model evaluation and alignment.

  • Q: What skills should I list to match this job?

    Use keyword-aligned skills such as Data Labeling, Data Annotation, RLHF, Prompt Evaluation, QA Evaluation, Named Entity Recognition, Computer Vision Annotation, Content Safety Labeling, Annotation Guidelines Compliance, and Training Data Quality.

  • Q: What salary range is listed for this role?

    The salary range is USD 63360 to 126720 per year, paid on a YEAR pay period.

  • Q: Does Rex.zone hire for contract or freelance roles too?

    Rex.zone may list contract or freelance openings depending on project demand, but this specific posting is FULL_TIME and Remote as stated in the metadata.

  • Q: What industries and teams does this work support?

    Projects commonly support Technology organizations such as AI labs, tech startups, BPOs, and annotation vendors working on NLP, computer vision, and content safety for LLM systems.

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