mathematician jobs in Toronto

66 mathematician job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, ON, Canada Mercor Full-time €83,000 - €138,000 Contract

    Help a leading AI lab teach its models to write real, machine-checked mathematics in Lean. 1. Overview A leading AI lab is looking for Lean engineers, formal mathematicians and proof engineers to help its AI models state and prove mathematics correctly. You'll write and review Lean 4 proofs, turn informal math into precise formal statements, and help the...


  • Toronto, ON, Canada Mercor Full-time €80,000 - €120,000 Contract

    Elevate AI model capabilities with a part-time role as a Lean 4 Formal Mathematician at Cincinnatus LLC. Engage in writing, reviewing, and formalizing mathematics proofs using Lean 4 techniques. This position requires expertise in creating precise Lean 4 statements and proofs, contributing to an advanced AI lab's research. You'll formalize informal...


  • Toronto, ON, Canada Mercor Remote Full-time $118,000 - $149,000 Contract

    About The JobMercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.PositionApplied Mathematics Benchmark SpecialistTypeContractCompensation$61-$77/hourLocationRemoteCommitment10+...


  • Toronto, ON, Canada Mercor Full-time €80,000 - €120,000 Contract

    Help a leading AI lab teach its models to write real, machine-checked mathematics in Lean. 1. Overview A leading AI lab is looking for Lean engineers, formal mathematicians and proof engineers to help its AI models state and prove mathematics correctly. You'll write and review Lean 4 proofs, turn informal math into precise formal statements, and help the...


  • Toronto, Ontario, Canada Alignerr Remote Full-time US$170 - US$200 Permanent

    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...


  • Toronto, ON, Canada Mercor Full-time $70,000 - $110,000 Contract

    Mercor is seeking expert mathematicians to author and review high-quality academic assessment content for an AI research initiative. You will write and verify rigorous multiple-choice questions across core mathematics domains, evaluate solution quality, and help establish gold-standard benchmarks used to advance AI capabilities.You will be assigned one of...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Join a leading AI lab as a Lean Engineer to formalize mathematics. Utilize Lean 4 to ensure precise proofs and collaborate with researchers to enhance AI models. Cincinnatus LLC is seeking skilled Lean engineers and formal mathematicians for a crucial part-time role. You will write Lean 4 proofs, transform informal math into formal statements, and validate...


  • Toronto, ON, Canada Mercor Full-time €83,000 - €165,000 Contract

    Contribute to groundbreaking AI research by helping models write real, machine-checked mathematics in Lean. This part-time role focuses on formalizing math and reviewing proofs effectively. Cincinnatus LLC is seeking Lean engineers and formal mathematicians to work with a leading AI lab. This role involves writing Lean 4 proofs, transforming informal...


  • Toronto, ON, Canada Mercor Full-time $55,000 - $83,000 Contract

    Join a leading AI lab as a Lean Engineer to formalize mathematics. Utilize Lean 4 to ensure precise proofs and collaborate with researchers to enhance AI models. Cincinnatus LLC is seeking skilled Lean engineers and formal mathematicians for a crucial part-time role. You will write Lean 4 proofs, transform informal math into formal statements, and validate...


  • Toronto, ON, Canada DataAnnotation Remote Full-time $62,480 - $88,987 Contract

    Apply advanced mathematical reasoning remotely with DataAnnotation while evaluating AI chatbot outputs and solving complex problems. Choose full-time or part-time work.DataAnnotation seeks mathematicians to train AI models through careful evaluation and problem solving. The contract role focuses on measuring chatbot progress, assessing logic, and improving...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Role Overview We are seeking expert mathematicians to author and review high-quality academic assessment content for an AI research initiative. You will write and verify rigorous multiple-choice questions across core mathematics domains, evaluate solution quality, and help establish gold-standard benchmarks used to advance AI capabilities. You will be...

  • Game Developer

    3 days ago


    Toronto, ON, Canada DataAnnotation Remote Full-time $62,480 - $88,987 Contract

    Join to apply for the Game Developer role at DataAnnotation.Get AI-powered advice on this job and access more exclusive features.We are seeking a mathematician with an advanced degree to join our team to train AI models. Your responsibilities will include measuring the progress of AI chatbots, evaluating their logic, and solving problems to enhance each...


  • Toronto, Ontario, Canada Mercor Full-time

    Role OverviewWe are seeking expert mathematicians to author and review high-quality academic assessment content for an AI research initiative. You will write and verify rigorous multiple-choice questions across core mathematics domains, evaluate solution quality, and help establish gold-standard benchmarks used to advance AI capabilities.You will be assigned...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Turing Full-time

    1 day ago Be among the first 25 applicants Are you passionate about solving logical problems and working through challenging math? Turing is looking for PhD-level researchers in mathematics to test the reasoning capabilities of large language models (LLMs). You'll create math problems, analyze model responses, and identify gaps in logic or understanding....


  • Toronto, Ontario, Canada Alignerr Remote Full-time US$170 - US$200 Permanent

    About The Role What if your deep mathematical training could directly shape how AI reasons about proofs — and push the boundaries of what machines can verify? We're looking for Formal Verification Scientists to translate advanced mathematical arguments into precise, machine-checkable Lean 4 formalizations, working at the very frontier of AI research and...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Heidi Full-time

    Healthcare needs a better rhythm: one that keeps care continuous and deeply human. Heidi is building an AI Care Partner that works alongside clinicians to make that possible. We exist to double healthcare's capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million...

  • Lean Engineer

    3 days ago


    Toronto, ON, Canada Mercor Full-time €83,000 - €165,000 Contract

    Help a leading AI lab teach its models to write real, machine-checked mathematics in Lean. 1. Overview A leading AI lab is looking for Lean engineers, formal mathematicians and proof engineers to help its AI models state and prove mathematics correctly. You'll write and review Lean 4 proofs, turn informal math into precise formal statements, and help the...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada SandboxAQ Full-time

    At SandboxAQ, we are committed to competitive, equitable, and transparent compensation; we continuously benchmark our salaries and total compensation to premium markets to ensure our competitiveness. Individual pay within the above range is determined by job-related skills, experience, education, and geographic location. With a focus on pay equity and...


  • Toronto, Ontario, Canada Turing Full-time

    1 day ago Be among the first 25 applicantsAre you passionate about solving logical problems and working through challenging math?Turing is looking for PhD-level researchers in mathematics to test the reasoning capabilities of large language models (LLMs). You'll create math problems, analyze model responses, and identify gaps in logic or understanding. The...

  • Lean Engineer

    4 days ago


    Toronto, ON, Toronto Census Division, ON; Ontario, Canada Mercor Full-time

    Help a leading AI lab teach its models to write real, machine-checked mathematics in Lean. 1. Overview A leading AI lab is looking for Lean engineers, formal mathematicians and proof engineers to help its AI models state and prove mathematics correctly. You'll write and review Lean 4 proofs, turn informal math into precise formal statements, and help the...