Jobs in Canada

Scientist 1 in Canada

97 active opportunities · Updated October 2026

Explore current scientist 1 jobs across Canada. Filter by work mode, employment type, experience, department, date posted and distance.

SA
📍 San Francisco, Canada· Full-time
✓ High-confidence listing

From $302.4K/yr

Quick readStrong listing-quality and freshness signals

About Scale At Scale AI, our mission is to accelerate the development of AI applications. For 8 years, Scale has been the leading AI data foundry, helping fuel the most exciting advancements in AI, including: generative AI, defense applications, and autonomous vehicles. With our recent Series F round, we’re accelerating the abundance of frontier data to pave the road to Artificial General Intelligence (AGI), and building upon our prior model evaluation work with enterprise customers and governments, to deepen our capabilities and offerings for both public and private evaluations. About the ACE team The Agent Capabilities & Environments (ACE) team, part of Scale’s Research organization, brings together customer-facing Researchers and Applied AI Engineers. Our core mission includes research on agent environments and RL reward signals, benchmarking autonomous agent performance across real-world scenarios and environments, creating robust data programs to improve Large Language Models (LLMs) agentic capabilities and building foundational tools and frameworks for evaluating models as agents. ACE focuses on autonomous agents that dynamically interact with diverse external environments, including code repositories, GUI interfaces, browsers, and more. About This Role This role is at the intersection of cutting-edge AI research and practical application, with a focus on studying the data types essential for building state-of-the-art agents, such as browser and SWE agents. The ideal candidate will explore the data landscape needed to advance intelligent, adaptable AI agents, guiding the data strategy at Scale to drive innovation. This position requires not only expertise in LLM agents and planning algorithms but also creativity in addressing novel challenges related to data, interaction, and evaluation. You will contribute to impactful research publications on agents, collaborate with customer researchers, and work alongside the engineering team to translate t

SQLAWSGCPRest
CC
📍 Vancouver, British Columbia, Canada· Full-time
✓ High-confidence listing

C$125K – C$200K/yr

Quick readStrong listing-quality and freshness signals

We are looking for a Data Scientist to join our Quantitative Equity Team! We are a high-performance team embedded in a top-performing quantitative equity fund that manages over $78+ billion USD in financial assets. We are dedicated to the mission-critical operation of our investment engine—a well-oiled machine responsible for generating key investment insights that drive trades. Leveraging data analytics, finance knowledge and cutting-edge technology, we aim to ensure that new and useful data products are continuously ready for research. Do you love the idea of evaluating and integrating large proprietary data sources into valuable applications? Are you a wizard at transforming ‘messy reality’ into high quality data assets? As a core member of our team, you will collaborate with investment and data experts to tackle challenging problems, and to continuously expand our capabilities in the data space. Based on the west coast in Vancouver, we value mentorship, collaboration, and growth in a supportive and innovative environment. Join us to make a significant impact on our investment outcomes and overall success. What You Will Do This is an exciting full-time role for individuals who are enthusiastic about learning the quantitative equity investment management business and excited to tackle a broad range of investment, mathematical, and technology challenges. You will start with a comprehensive training program, learning about various elements of quantitative equity investment management and our investment process. You will then continue to a specialized role utilizing data science, machine learning, AI, and process engineering skillsets to accelerate the Quantitative Equity Team’s data preparation and modelling functions. Your specialized role will involve building, scaling, managing and evaluating our integrated data model, in direct support of alpha research. You will be supported with coaching and mentorsh

Machine LearningAIGoExcel
SA
📍 San Francisco, Canada· Full-time
✓ High-confidence listing

From $189.6K/yr

Quick readStrong listing-quality and freshness signals

Scale’s ML platform (RLXF) team builds our internal distributed framework for large language model training and inference. The platform has been powering MLEs, researchers, data scientists and operators for fast and automatic training and evaluation of LLM's, as well as evaluation of data quality. Scale is uniquely positioned at the heart of the field of AI as an indispensable provider of training and evaluation data and end-to-end solutions for the ML lifecycle. You will work closely across Scale’s ML teams and researchers to build the foundation platform that supports all our ML research and development. You will be building and optimizing the platform to enable our next generation of LLM training, inference and data curation. If you are excited about shaping the future AI via fundamental innovations, we would love to hear from you! You will: Build, profile and optimize our training and inference framework Collaborate with ML teams to accelerate their research and development and enable them to develop the next generation of models and data curation Research and integrate state-of-the-art technologies to optimize our ML system Ideally you’d have: Strong excitement about system optimization Experience with multi-node LLM training and inference Experience with developing large-scale distributed ML systems Strong software engineering skills, proficient in frameworks and tools such as CUDA, Pytorch, transformers, flash attention, etc. Strong written and verbal communication skills and the ability to operate in a cross functional team environment Nice to haves: Demonstrated expertise in post-training methods &/or next generation use cases for large language models including instruction tuning, RLHF, tool use, reasoning, agents, and multimodal, etc. Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the positi

AWSRestAIGo
SA
📍 San Francisco, Canada· Full-time
✓ High-confidence listing

From $290.4K/yr

Quick readStrong listing-quality and freshness signals

Scale's LLM post-training platform team builds our internal distributed framework for large language model training. The platform powers MLEs, researchers, data scientists, and operators for fast and automatic training and evaluation of LLMs. It also serves as the underlying training framework for the data quality evaluation pipeline. Scale is uniquely positioned at the heart of the field of AI as an indispensable provider of training and evaluation data and end-to-end solutions for the ML lifecycle. You will work closely with Scale’s ML teams and researchers to build the foundation platform which supports all our ML research and development works. You will be building and optimizing the platform to enable our next generation LLM training, inference and data curation. If you are excited about shaping the future AI via fundamental innovations, we would love to hear from you! You will: Build, profile and optimize our training and inference framework. Collaborate with ML and research teams to accelerate their research and development, and enable them to develop the next generation of models and data curation. Research and integrate state-of-the-art technologies to optimize our ML system. Ideally you’d have: Passionate about system optimization Experience with multi-node LLM training and inference Experience with developing large-scale distributed ML systems Experience with post-training methods like RLHF/RLVR and related algorithms like PPO/GRPO etc. Strong software engineering skills, proficient in frameworks and tools such as CUDA, Pytorch, transformers, flash attention, etc. Strong written and verbal communication skills to operate in a cross functional team environment. Nice to haves: Demonstrated expertise in post-training methods and/or next generation use cases for large language models including instruction tuning, RLHF, tool use, reasoning, agents, and multimodal, etc. Compensation packages at Scale for eligible roles include base salary, equity,

AWSRestAIGo
L
📍 San Diego, California, Canada
✓ High-confidence listing
Quick readStrong listing-quality and freshness signals

Ignite your curiosity. Solve the unsolvable. At Leidos, we do more than write code—we decode the unknown. Our San Diego-based research and engineering team takes on some of the nation’s toughest defense challenges using advanced signal processing, ocean remote sensing, and high-performance computing. We’re seeking a Software Engineer / Computer Scientist who enjoys solving complex problems and pushing the limits of performance. In this role, you’ll work alongside a multidisciplinary team of scientists and engineers with expertise in hydrodynamics, physics, acoustics, and signal processing to build impactful software that turns massive, complex data sets into meaningful insight. If you are motivated by innovation, energized by collaboration, and excited to see your work support real-world missions, this could be the right opportunity for you. What You’ll Do Collaborate with scientists and engineers to design, develop, and optimize advanced algorithms for next-generation radar, optical, and infrared sensor systems. Build scalable, high-performance backend systems for scientific computing in distributed environments. Integrate, refactor, and improve scientific codebases to increase efficiency and scalability. Translate and optimize existing code for GPU/CUDA acceleration and parallel or distributed execution. Test, document, maintain, and enhance complex software in Linux/Unix environments. Contribute in a collaborative environment that values technical excellence, creativity, and continuous growth. Required Qualifications Bachelor’s degree in Computer Science, Applied Mathematics, Physics, or a related field with 4+ years of backend software development experience, or a Master’s degree with 2+ years of experience. Equivalent experience may be considered in place of a degree. U.S. citizenship and the ability to obtain a Top Secret clearance; active Top Secret clea

GitLinuxAI
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$100K – C$116K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. BGB Group Art Supervisor Position Overview The Art Supervisor is responsible for providing direct support to the Creative Director, particularly in the areas of creative presentation, client relations, and team creative oversight. The Art Supervisor must possess superior visual conceptual skills and knowledge of pharmaceutical requirements/terminology and vendor requirements/capabilities. The depth of the position demands qualifications developed over a minimum of 4 years of related graphic and supervisory experience. Specific Responsibilities Establish credibility with clients at all levels through advanced thinking via clear communication Helps establish and maintain the highest possible standards of reproduction for all digital, print, audio/visual and collateral materials produced by the agency Monitors the quality of finished mechanical/digital art and conceptual materials produced by internal and freelance artists Provides direction and guidance to depa

GitAIGoExcel
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$60K – C$70K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Account Executive Position Overview The Account Executive is the client-facing project lead responsible for communicating and documenting the project scope and specifications, ensuring client alignment during project development, and reviewing agency work deliverables against client objectives and project specifications. The Account Executive is responsible for managing accurate and timely client communications of project information, status, deadlines, and next steps on a daily basis, as well as managing the submission, review, and final delivery of work and materials. This includes managing clients to their deliverables and deadlines as well as acquiring the needed resources and client stakeholder input to keep projects on track for successful completion. The Account Executive also works with project management to ensure agency work is developed in accordance with client processes and milestones. Responsibilities: Account Management Represents client viewpoint in day-to-day project execution while partnering with Project Management to co

AIGoExcelMarketing
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$70K – C$105K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Project Manager Position Overview The Project Manager is responsible for internally leading project(s) from inception to execution. This includes planning, execution and managing the people resources and scope of the project(s). Ensuring functional team alignment so that activities and deliverables for medium size complexity projects/accounts are executed on time, on budget, at the highest possible level of quality. In addition, the Project Manager supports client engagements and conform to agency process. The Project Manager is an important member of the team(s), working closely with the account and functional department project leads to meet and exceed performance targets, foster a positive work environment, and serves as a model of professionalism and a reflection of the agency’s personality and culture. Responsibilities Planning: Partners with Account to apply experience across program mix, technologies, and promotional channels to deliver innovative solutions, leveraging a

AIGoExcelSEM
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$70K – C$95K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Talent Acquisition Partner Position Overview The Talent Acquisition Partner at BGBx plays a pivotal role in shaping the organization's future by identifying, attracting, and hiring top talent. This individual will partner closely with hiring managers and departmental leaders across the agency to understand business objectives and develop recruitment strategies that align with the company's mission of delivering innovative healthcare marketing solutions. The ideal candidate is a proactive and resourceful professional with a strong understanding of the healthcare marketing landscape, enabling them to source candidates who can thrive in a dynamic, fast-paced environment. As a trusted advisor, the Talent Acquisition Partner will manage the full-cycle recruitment process, from sourcing and screening candidates to extending offers and ensuring a best-in-class candidate experience. The Talent Acquisition Partner will maintain robust talent pipelines and leverage data-driven insights to optimize hiring outcomes. This is an opportunity to make a significant impact by c

AIGoRustMarketing
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$75K – C$110K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Senior Medical Editor Position Overview The Senior Medical Editor ensures the quality, accuracy, and compliance of medical content across various promotional and educational materials. This role involves reviewing materials for scientific accuracy, adherence to style guides, and consistency while mentoring junior editors. Responsibilities: Edit and proofread scientific and promotional content for grammar, consistency, and accuracy Ensure adherence to AMA style, brand guidelines, and regulatory requirements Collaborate with medical, creative, and account teams to refine content Verify references and citations for scientific accuracy and compliance Provide final proofreading and quality control of client deliverables Support the development and implementation of editorial processes and best practices Mentor junior editors and provide training on industry and editorial standards Qualifications Bachelor’s or advanced degree in English, Journalism, Life Sciences, or a related field

GitAIGoExcel
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$90K – C$130K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Senior Project Manager Position Overview The Senior Project Manager is responsible for the overall management and administration of client projects throughout the entire project lifecycle. The Senior Project Manager is at the core of the team and helps everyone to communicate clearly while staying on time, on budget, and meets the highest of quality standards. This individual must demonstrate solid business judgment and sound strategic thinking. This role reports to the Director of Project Management. Responsibilities: Understands the scope of work across an assigned account, as well as the project plan at an individual project level Facilitates interdepartmental negotiation process to reach alignment on project resources and timelines Aligns with Department Resource Managers to assign resources and ensure effective time management throughout a project life cycle Continually monitors projects to ensure deliverables are on schedule and within scope&nbsp

AIGoExcelProject Management
B
📍 Ontario, Canada· Full-time
✓ High-confidence listing

C$100K – C$125K/yr

Quick readStrong listing-quality and freshness signals

About Us At BGBx , we're driven by a simple idea: breakthrough thinking creates breakthrough impact. As an independent commercial solutions partner to pharmaceutical and life science companies, we bring together strategists, scientists, communicators, creatives, technologists, and data experts to tackle some of healthcare's most important challenges. Our teams work across consulting and communications to help clients shape strategy, launch innovations, engage stakeholders, and drive meaningful results throughout the product lifecycle. The work is complex, fast-moving, and deeply connected to improving lives, creating opportunities for curious minds to make a real difference every day. If you're energized by collaboration, inspired by innovation, and motivated by work that matters, you'll find a place to grow, contribute, and make a meaningful impact at BGBx. Senior Medical Writer Position Overview The Senior Medical Writer must have a proven record of independently and successfully executing the responsibilities and successfully demonstrating the competencies outlined below. They must demonstrate greater independence and ownership compared with the Medical Writer . Please see required experience below. Content Development and Execution: Conducts required research in a timely and proficient manner, utilizing the appropriate resources Develops scientifically accurate, strategically aligned, grammatically correct, and impactful content, from initiation through completion, with input from manager Accurately and efficiently annotates content per brand style guide and AMA rules Assumes accountability for accuracy of work Planning: Understands the product/scientific/therapeutic and competitive space and proactively provides recommendations regarding planned projects to internal team Understands the internal BGB processes and adheres to timelines and procedures, as agreed to by th

RestAIGoExcel
L
📍 Toronto, Canada
✓ Quality checkedCompany trend -72.4%

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. As a Senior Software Engineer, Data on the Mapping team, you will collaborate with our world-class team of engineers, product managers, and scientists to grow and improve the quality of recommended routes and accuracy of our travel time estimations. You will lead the architecture and long-term technical direction of our offline experimentation tooling and route simulation services — the systems that let Lyft test routing changes safely before they reach production. You'll also build scalable data pipelines for experimentation, analytics, and machine learning models, along with the data governance and observability systems that keep them trustworthy. Your work will enable integration with partner teams and allow stakeholders across Engineering, Data Science, and Product to make data-informed decisions that directly impact Lyft’s growth and profitability. Our technology stack is based on the latest technologies such as AWS, Databricks, Kubernetes and Airflow. You will work with incredibly passionate and talented colleagues from software engineering, machine learning and data science on projects that directly impact millions of riders and drivers. Responsibilities Own core data pipelines end-to-end, building deep subject matter expertise in the systems you manage and defining/managing SLAs for pipelines, services, and datasets to ensure reliability at scale Serve as the technical owner and architectural lead for our offline experimentation platform and route simulation services, setting technical direction, evaluating trade-offs, and ensuring the systems scale with Lyft's routing and mapping ambitions Continuously evolve data models and schemas to meet business and engineering requirements Develop AI tools that support self-service management of data pipelines (ETL) and schema evolution, and perform han

PythonSQLPostgreSQLMySQL
SA
📍 San Francisco, Canada· Hybrid
✓ High-confidence listing
Quick readStrong listing-quality and freshness signals

About Snorkel At Snorkel, we believe meaningful AI doesn’t start with the model, it starts with the data. We’re on a mission to help enterprises transform expert knowledge into specialized AI at scale. The AI landscape has gone through incredible changes since 2015, when Snorkel started as a research project in the Stanford AI Lab, to the generative AI breakthroughs of today. But one thing has remained constant: the data you use to build AI is the key to achieving differentiation, high performance, and production-ready systems. We work with some of the world’s largest organizations to empower scientists, engineers, financial experts, product creators, journalists, and more to build custom AI with their data faster than ever before. Excited to help us redefine how AI is built? Apply to be the newest Snorkeler! In September 2026 we raised a $350 million Series E at a $3.5 billion valuation , and we are scaling our engineering and research teams to meet demand. The role Frontier AI data is expensive to make and hard to measure. Every task we deliver is tested against the strongest models, often through many long-running agent rollouts. Your job is to make that process faster, cheaper, and more rigorous with ML and AI You will be one of the early members of ML & Research Engineering at Snorkel. You will study how frontier-grade data is generated and evaluated, form hypotheses, validate them against real production data, and ship the winners at scale. You will shape the discipline's direction, its standards, and the team that grows around it. What you'll work on Efficient agentic evals. Cut the cost of long-horizon agent evaluation with adaptive sampling, statistically grounded early stopping, model cascades, caching, and cheap-first gating. AI model routing. Route every eval and judge call to the cheapest model that clears the quality bar, with fallback, monitoring, and cost attribution. Fine-tuned small models. Fine-tune and serve open-weight models (LoRA and other

PythonMachine LearningAI
DU
📍 San Francisco, Canada
✓ High-confidence listing
Quick readStrong listing-quality and freshness signals

About the Team The Customer Experience team serves as a foundational operations pillar at DoorDash, dedicated to resolving friction within the last mile. We architect and oversee an expansive global network of support centers — spanning both teammate-assisted and AI-driven support — obsessing over the user journey to ensure every interaction is seamless and reliable. As the analytics team, our mission is to make every support interaction measurably better: we define what a great resolution looks like, quantify where we fall short, and turn that into a roadmap for product, operations, and AI/ML partners. We are looking for a Manager to lead and grow the analytics team behind our core support experience. About the Role As a Manager on the Customer Experience Analytics team, you'll set the analytical vision for how DoorDash measures and improves customer resolutions across our global network of support teammates and their interactions with our customers. You'll lead and grow a team of data scientists working at the intersection of customer experience quality and operational cost — uncovering opportunities to drive perfect interactions and informing improvements to teammate tooling that leverages AI-driven resolutions. You'll establish a clear measurement framework for resolution quality, own insights to drive strategy and roadmap, and align partners across CX, Product, Engineering, Operations, and AI/ML. This is a high-visibility leadership role: success means better outcomes for customers, a more effective support organization, and a team of data scientists who are growing in their craft. You're excited about this opportunity because you will… Lead, grow, and develop a team of data scientists — providing mentorship, feedback, and clear career development pathways. Set the analytical vision for the core support experience, defining what a great customer resolution looks like and building the metrics to measure it. Uncover opportunities to drive perfect interactions, tr

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