Jobs for data annotations at Toronto

About Mecka AI Mecka AI is building the data infrastructure layer for robotics and embodied AI. We design and operate global systems for data capture, data labeling, and hardware-enabled workflows used by leading AI labs and robotics companies to train and validate humanoid and embodied AI systems. We work closely with frontier robotics teams to bridge...

Fluent Language Skills Required: Odia. Native fluency in Odia (Oriya), including full command of Odia script and orthography, is required for this position. All annotation and transcription work is performed in Odia. Why This Role Exists Document understanding breaks down fastest in the languages that parsing and vision-language models rarely...

Come be a part of our mission and make a meaningful and positive impact with the industry leading provider of language services for the Deaf and hard-of-hearing! * This is a Canada Remote Only Position * Pay Range: Actual pay may vary up or down depending on job-related factors which may include knowledge, skills, experience, and location. In addition,...

Mercor is seeking experienced musicians in Toronto to evaluate generative musical AI models and assess outputs across various music categories in a bilingual setting. In this part-time role, you will work on evaluating lyrics, voice generation, and music data quality, with detailed annotations and human judgments. Ideal candidates have 3+ years as music...

Our mission is to scale intelligence to serve humanity. We’re training and deploying frontier models for developers and enterprises who are building AI systems to power magical experiences like content generation, semantic search, RAG, and agents. We believe that our work is instrumental to the widespread adoption of AI. Each one of us is responsible for...

Job DescriptionWhat is the opportunity? RBC’s AI Group is building trusted AI capabilities for the enterprise, and evaluation is one of the core controls that makes that possible. As Senior Data Scientist, AI Evaluations Platform, you will be a technical leader in the data science function responsible for how RBC measures model and agent quality, safety,...

About the RoleWe are looking for detail-oriented Generative AI Analysts to support a variety of AI training, data annotation, evaluation, and quality review projects. Project DetailsJob Title: Translation Validation - French (Canada)Location: Remote (Canada)Employment Type: FreelancePay Rate: 20USD/per hourDepending on the project, you may work with text,...

Mecka AI is building the data infra layer for robotics and embodied AI, enabling data capture, labeling, and hardware-enabled workflows used by leading AI labs. You will own the internal annotation platform and develop lightweight ML services like PII blurring, balancing privacy and data preservation.You will join a hybrid engineering role bridging practical...

Document Review Specialist (AI Training) About The Role What if your sharp eye for detail could directly influence how AI understands the written world? We're looking for Document Review Specialists in the Toronto area to read, annotate, and classify real-world documents — helping AI systems make sense of everything from news articles to financial...

Chemistry Masters — AI Data Trainer About The Role We're looking for chemistry experts to help train and improve the next generation of AI models. At Alignerr, we partner with the world's leading AI research labs — and we need people who truly understand chemistry to help AI think more rigorously about it. If you have a Master's in Chemistry, Chemical...

About Mecka AI Mecka AI is building the data infrastructure layer for robotics and embodied AI. We design and operate global systems for data capture, data labeling, and hardware-enabled workflows used by leading AI labs and robotics companies to train and validate humanoid and embodied AI systems. We work closely with frontier robotics teams to...

Lead impactful projects ensuring the safety of AI systems with a focus on large language models. Drive data-centric approaches and collaborate with talented teams in a flexible remote environment. In this role on the Safety for Agents team, you will make strides in developing fair and secure AI models. This position combines skills in data generation,...

Biology Masters – AI Data Trainer About The Role We're looking for Masters-level biology professionals to help train and improve cutting-edge AI models. At Alignerr, we partner with the world's leading AI research labs — and now we need your scientific expertise to make AI smarter, more accurate, and more rigorous in the life sciences. Your deep...

Principal Python Engineer — ML Infrastructure (AI Training) About The Role What if your Python expertise could directly shape the infrastructure that powers the most advanced AI systems in the world? We're looking for a Principal Python Engineer in Toronto to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI...

Senior Machine Learning Expert (AI Training) About The Role What if your deep expertise in machine learning could directly shape how the world's most advanced AI systems learn to reason, plan, and make decisions? We're looking for Senior Machine Learning Experts to author high-fidelity reasoning traces — the structured, step-by-step thinking patterns...

Lead impactful projects ensuring the safety of AI systems with a focus on large language models. Drive data-centric approaches and collaborate with talented teams in a flexible remote environment. In this role on the Safety for Agents team, you will make strides in developing fair and secure AI models. This position combines skills in data generation,...

Mercor is building a red team for AI safety. This remote role focuses on adversarial testing of conversational AI models, with tasks including jailbreaks, prompt injections, and bias probing.You will generate high‐quality human data, annotate vulnerabilities, and document reproducible attack cases for customers. Ideal candidates are experienced in AI red...

Role PurposeEnsure the linguistic and phonetic quality of Omilia’s multilingual Text-to-Speech (TTS) systems by designing phoneme inventories, developing lexicons, and reviewing audio corpora to support enterprise-grade voice experiences.AccountabilitiesAutonomy: Independently conduct phonological and phonetic analysis, design phoneme inventories, and...

Job Description Job Title: Biology Quality Assurance Lead Job Type: Contract Location: Remote About This Role In this hourly, remote contractor role, you will work as a Biology Quality Assurance Lead to oversee quality, consistency, and trainer performance across biology AI training projects. You will review AI-generated biology content and...

Rex.zone is hiring full-time remote Online Generalists in Canada to support AI/ML data operations that power large language model training pipelines. You will complete online tasks such as data labeling, RLHF preference ranking, prompt evaluation, QA evaluation, and content safety labeling across NLP and computer vision datasets. Responsibilities Perform...