Jobs for data annotator at Toronto

SYSTRA Canada is part of the SYSTRA group, an international consulting and engineering group, a world leader in the design of transport infrastructures. SYSTRA Canada is an engineering and consulting firm whose primary focus is to offer transportation solutions, whether for passengers or goods: feasibility studies of building a new railway line, increasing...

Lean 4 Proof Engineer — Mathematical Formalization About The Role What if your mathematical expertise could directly shape how AI understands and reasons about formal proof? We're looking for skilled mathematicians to translate rigorous human arguments into machine-verifiable Lean 4 formalizations — working at the very frontier of what proof assistants...

Applied Physics (AI Training) About The Role What if your years of physics expertise could directly shape how AI understands the physical world? We're looking for PhD-level Applied Physicists to stress-test and improve cutting-edge Large Language Models — exposing the gaps in their reasoning and helping ensure they never violate the fundamental laws of...

Researcher — Lean 4 & Formal Proof Systems (AI Training) About The Role What if your deep mathematical expertise could directly shape how AI reasons about formal proofs — pushing the frontier of what machines can understand and verify? We're looking for mathematicians and formal verification specialists to translate sophisticated mathematical...

About The Role What if your deep mathematical training could directly shape how AI understands and reasons about formal proofs? We're looking for mathematicians and formal methods experts to work at the cutting edge of AI research — translating rigorous mathematical arguments into machine-verifiable Lean 4 formalizations, and helping map the frontier of...

**POSITION OVERVIEW** As an Art Supervisor working across healthcare brands, you will be supporting a larger team, while having a role as a major contributor to the development of promotion across print and digital media. You'll be challenged to push boundaries to produce work that exceeds client expectations, both conceptually and in the execution of the...

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...

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...

Physics Masters – AI Training Specialist About The Role We're looking for Masters-level physicists to help train and evaluate some of the world's most advanced AI models. Your deep understanding of physics will directly shape how AI reasons through complex problems — from classical mechanics to quantum theory. This is a fully remote, flexible contract...

Member of Technical Staff - ML Data About Us Veeda AI is building the next generation of multimodal foundation world models for Physical AI. We're a small, fast-moving team of engineers and researchers from leading AI labs, tackling some of the most challenging problems at the intersection of AI, robotics, and embodied intelligence. If you're excited about...

Clinical Business Intelligence Manager (AI Training) About The Role What if your expertise in healthcare analytics could directly shape how AI understands clinical data — and ultimately influence decisions that affect patient outcomes at scale? We're looking for an experienced Clinical Business Intelligence Manager to lead analytics design and delivery...

About The Role What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think? We're looking for mathematicians with a passion for rigorous proof and formal systems to help build the mathematical foundations that frontier AI depends on. This is a fully remote, flexible contract...

Mechanical Engineering — AI Trainer About The Role We're partnering with the world's leading AI research labs to build smarter, more technically rigorous AI models — and we need mechanical engineers to make it happen. If you have deep knowledge of fluid dynamics, thermodynamics, structural mechanics, or mechatronics, this is your opportunity to...

Computer Engineering — AI Data Trainer About The Role We're partnering with the world's leading AI research labs to build smarter, more reliable AI systems — and we need expert computer engineers to help get there. As a Computer Engineering AI Data Trainer, you'll put your deep technical knowledge to work challenging, auditing, and refining advanced...

Physics Subject Matter Expert (AI Training) About The Role We're looking for physics experts in Toronto and across Canada to help train and evaluate cutting-edge AI models. Your deep understanding of physics will directly shape how AI reasons through complex problems — from undergraduate mechanics to graduate-level electromagnetism and beyond. This is a...

About The Role What if your deep expertise in TypeScript could directly influence how AI writes code for millions of developers around the world? We're looking for experienced Frontend TypeScript Engineers in Toronto and across Canada to review, evaluate, and guide AI-generated code — helping cutting-edge AI models understand what truly type-safe,...

AI-Augmented Design Flows CI/CD for RTL Lint / CDC / Synthesis Automation About The Role Eliyan is the chiplet interconnect pioneer behind NuLink, the industry's most efficient chiplet-to-chiplet PHY technology. With Series C funding from leading hyperscalers and AI infrastructure providers, we are scaling our digital design organization to support...

About The Role What if your ear for Korean and obsession with precision could directly shape how AI understands spoken language? We're looking for detail-oriented Korean Audio Transcript Editors in Toronto and across Canada to clean up, correct, and polish audio transcripts — ensuring every word, timestamp, and formatting detail is exactly right. This is...

Health Informatics Analyst (AI Training) About The Role We're looking for experienced Health Informatics Analysts to help evaluate and improve AI systems being trained on healthcare and clinical data. Your domain expertise will directly shape how AI understands, interprets, and communicates complex health information — making a meaningful impact on the...

About The Job At Alignerr, we partner with the world’s leading AI research teams and healthcare innovators to modernize how digital technologies support patient care and clinical operations. As a Digital Health Strategist, you will help design, implement, and scale digital health solutions—including telemedicine, remote monitoring, wearable data, and...