Ai Research Scientist in Toronto

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. The People Development team is building the infrastructure for how Lyft grows, develops, and equips its people. As Technical Learning Manager, you will own the strategy and execution of technical learning programs for Lyft's Engineering, Science, Product, and Design organizations — one of our highest-leverage investments in people. This role sits at the intersection of learning design, program management, and functional excellence across the technology organizations. You will inherit an established portfolio of programs for software engineers — including Tech Learning, compliance training, and documentation initiatives — and will be responsible for running, evolving, and expanding them across all of Lyft’s tech orgs. You will report to the Head of People Development and work closely with Functional excellence leadership, HRBPs, and cross-functional partners to ensure our technical learning programs are high-quality, well-adopted, and tied to real business outcomes. Responsibilities: Program Ownership Own the strategy and execution of Lyft's technical learning portfolio, including engineering continuing education programs, documentation improvement initiatives and compliance training Manage mid-cycle programs with active stakeholder relationships and scheduled commitments — ensuring continuity, quality, and follow-through Provide editorial oversight for Lyft's internal technical content initiatives, including the Tech Blog — managing workflow, stakeholder relationships, and publication processes in partnership with engineering contributors Assess the current program portfolio and make recommendations grounded in engineer needs and business priorities Provide engaging learning experiences that empower technologists to do their best work at Lyft Embed AI upskilling in all programs including

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. About the team As a platform company powering businesses all over the world, Stripe processes payments, runs marketplaces, detects fraud, helps entrepreneurs start internet businesses from anywhere in the world, builds world-class developer-friendly APIs, and more. The engineering teams at Stripe work on the business logic for all of that. As a software engineering manager at Stripe, you'll lead teams that build and expand APIs, services, and experiences. You'll also work with partners to launch new markets and vertical capabilities. Stripe Terminal helps our users extend their online presence to the physical world. The mission of the Terminal team is to make it as easy for businesses to accept in-person payments as the Stripe API has done for online payments—building for Unified Commerce. With Terminal, businesses can unify their in-person and online experiences, unlocking payments use cases that are right for their business model—whether it's creating a modern retail experience, extending their website to a pop-up store, or enabling a mobile point-of-sale at their next event. Within Terminal, the Commerce team focuses on the following to help make Unified Commerce a reality for businesses across the globe. Enterprise features—on-reader forms, tipping, gift cards Payment features—DCC, surcharge, multi-capture Point-of-sale integrations—enterprise-focused integrations Low-code and no-code—solutions that will enable our users to onboard quickly What you'll

About the Team: Tubi's Internal Tools team is at the forefront of AI integration, developing everything from developer resources to production-grade AI for business operations. We are the group responsible for turning AI from an experiment into an operating capability: training, infrastructure, developer agents, and AI-powered business systems. Engineers operate with high ownership and autonomy, collaborating on shared architectural decisions and AI infrastructure. What You'll Do: Own systems end to end — design them, build them, and support them in production. Lead the projects you own: sequence the work, decide what lands first, and set technical direction for the engineers working with you. Sit with the people who use what you build, and turn what you learn there into a system. Design the service boundaries, contracts and schema evolution that let our platforms grow without breaking the teams depending on them. Make our AI systems dependable in production: evaluation harnesses, human approval steps before an agent acts, retries that handle a model returning something unexpected, and cost tracking that tells you what a task costs before you run it. Build what other engineers build on — agent skills, tool and MCP integrations, shared libraries — and raise the bar through code review, design discussion and mentoring. Spot the platform work nobody has asked for yet, make the case for it, and build it. Your Background: 5+ years of professional experience building and operating production systems, from design through production ownership. A system you designed and can walk us through end to end — where its boundaries sit, what constrained it, and what you chose against. Strong programming proficiency in a statically typed language such as Rust, Go, C++, Java, Kotlin, C#, or TypeScript. Production Rust is a plus rather than a requirement. You have owned a service in production: you wrote the runbooks, you knew what it cost, and you were the one paged when it broke. Expe

About the Role: The Machine Learning team at Tubi drives the innovation behind personalized user experiences. With the largest inventory in the industry and hundreds of millions of viewers, we tackle problems in the space of recommendations, search, content understanding, and ads optimization that shape the future of streaming. We are seeking a Director of Machine Learning Engineering and Infrastructure to lead a hybrid team bridging advanced ML engineering with world-class infrastructure design. In this role, you will own the strategic direction and execution for scaling our machine learning capabilities while ensuring our distributed systems and infrastructure can support innovation at massive scale. You will combine technical depth with leadership excellence to guide teams that deliver both foundational ML systems and high-performance distributed services. This is a hybrid role for our Toronto office. What You'll Do: Lead and manage high-performing teams across ML engineering and ML infrastructure, fostering a culture of innovation, collaboration, and growth. Define and execute the strategic roadmap for ML systems, including recommendation, personalization, and ads optimization. Oversee the design, development, and deployment of scalable ML pipelines: data ingestion, feature engineering, model training, evaluation, and serving. Architect distributed systems to support ML workloads at scale, ensuring reliability, observability, and operational excellence. Partner closely with Product, Engineering, and Content teams to align on business goals and deliver impactful ML-driven experiences. Support best practices in experimentation, evaluation, and ML system monitoring. Ensure cost efficiency, scalability, and performance in ML infrastructure investments. Your Background: 10+ years of industry experience spanning machine learning engineering and distributed systems. 3+ years of leadership and management experience, with a proven ability to build and lead strong t

Here at Appian, our values of Intensity and Excellence define who we are. We set high standards and live up to them, ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment, holding ourselves and each other accountable to achieve the best results. When you join Appian, you’ll be part of a passionate team dedicated to accomplishing hard things, together. Are you looking to combine your passion for technology with your penchant for strategic problem solving? Appian Customer success is obsessed with great customer outcomes. We deliver mission-critical business impact fast, and are directly responsible for partnering with our customers to bring their best ideas to life. Joining the Customer Success team will provide you with the support and growth you need to strengthen and evolve your skills within the consulting field. Technical Delivery Managers (TDMs) are responsible for two of our most important company objectives: (1) ensure our customers achieve remarkable business results through technology engagements and (2) drive customer growth through technology expertise, trusted advice, relationships, and, most importantly, demonstrated results. TDMs manage and deliver innovative solutions built on the Appian platform for our customers, overseeing all aspects of agile delivery for Appian led engagements, including risk management and impediment removal. TDMs also team closely with front-line sales reps to drive growth in strategic accounts and integrated deals. TDMs engage in all aspects of driving results and growth at strategic accounts, including: project management, account management, relationship building (both customers and partners), financial management, opportunity qualification, problem identification, project/use case definition, demand generation, services positioning, and account strategy. All of these activities are performed in partnership with Appian Sales, Appian Partners, and oth

Level Up Your Career with Zynga! At Zynga, we bring people together through the power of play. As a global leader in interactive entertainment and a proud label of Take-Two Interactive, our games have been downloaded over 6 billion times—connecting players in 175+ countries through fun, strategy, and a little friendly competition. From thrilling casino spins to epic strategy battles, mind-bending puzzles, and social word challenges, our diverse game portfolio has something for everyone. Fan-favorites and latest hits include FarmVille™, Words With Friends™, Zynga Poker™, Game of Thrones Slots Casino™, Wizard of Oz Slots™, Hit it Rich! Slots™, Wonka Slots™, Top Eleven™, Toon Blast™, Empires & Puzzles™, Merge Dragons!™, CSR Racing™, Harry Potter: Puzzles & Spells™, Match Factory™, and Color Block Jam™—plus many more! Founded in 2007 and headquartered in California, our teams span North America, Europe, and Asia, working together to craft unforgettable gaming experiences. Whether you're spinning, strategizing, matching, or competing, Zynga is where fun meets innovation—and where you can take your career to the next level. Join us and be part of the play! Position Overview The Senior Software Engineer on the Ad Monetization team is responsible for bringing interactive advertising experiences to life (such as mini-games, surveys, and more) by transforming approved creative concepts into polished, high-performing ad units. Working closely with engineers, creative leads, and cross-functional partners, this individual owns the technical execution of each experience from implementation through deployment, ensuring every build is reliable, performant, visually polished, and ready for production What You'll Do Build high-quality playable ads and interactive creative units from approved storyboards, design assets, and creative briefs Implement gameplay mechanics, interactive behaviors, transitions, animations, and other UX elements to ensure a seamless user experie

Level Up Your Career with Zynga! At Zynga, we bring people together through the power of play. As a global leader in interactive entertainment and a proud label of Take-Two Interactive, our games have been downloaded over 6 billion times—connecting players in 175+ countries through fun, strategy, and a little friendly competition. From thrilling casino spins to epic strategy battles, mind-bending puzzles, and social word challenges, our diverse game portfolio has something for everyone. Fan-favorites and latest hits include FarmVille™, Words With Friends™, Zynga Poker™, Game of Thrones Slots Casino™, Wizard of Oz Slots™, Hit it Rich! Slots™, Wonka Slots™, Top Eleven™, Toon Blast™, Empires & Puzzles™, Merge Dragons!™, CSR Racing™, Harry Potter: Puzzles & Spells™, Match Factory™, and Color Block Jam™—plus many more! Founded in 2007 and headquartered in California, our teams span North America, Europe, and Asia, working together to craft unforgettable gaming experiences. Whether you're spinning, strategizing, matching, or competing, Zynga is where fun meets innovation—and where you can take your career to the next level. Join us and be part of the play! Position Overview As a Senior Manager, Lifecycle Marketing, you will manage a team of Managers and/or Specialists across multiple game genres, and own the planning and execution of Lifecycle strategy for that portfolio. This position requires you to be data-driven, strategic, and a strong cross-functional collaborator. You will represent the Lifecycle Team in cross-functional and strategy meetings, sharing insights that keep the team's work aligned to broader Lifecycle and organisational goals, and you will set team objectives in line with BU objectives. What You'll Do Manage and develop a team of Managers and/or Specialists across owned genres, providing clear direction, coaching, and day-to-day people leadership. Own performance management for direct reports, including goal-setting, regular 1:1s, feedback, and

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . We're looking for a sharp, positive, and motivated self-starter to join our Mid-Market Goods team in Toronto! In addition to laying the foundation of the team, the Client Partner will be responsible for forming relationships with key brands and ensuring they meet their business objectives using Reddit's advertising suite. Please note that this role is required to work in-person from our Toronto office 1-2 days per week. Core Responsibilities: Collaborate with existing clients to deliver Reddit solutions that help achieve those customers’ marketing and business goals Identify areas of additional opportunity within existing client relationships, including new lines of business, and move them through to close Collaborate with Account Managers to create long-term, mutually beneficial partnerships between your customer base and Reddit Act as the CEO of your book of business, and take full ownership of strategic bets, revenue forecasting, and ensuring operational rigor Communicate feedback on our sales processes, narratives, and products to advocate for customers and improve the team's effectiveness and efficiency Proactively manage and deepen relationships with existing advertising partners, both with agencies and directly with clients to drive year-over-year revenue growth Proactively construct upfront and joint business plans with top clients Establish mutually beneficial relationships with new clients, educating them on Reddit and the Reddit ads platform Leverage agency and client direct relationships to identify new buye

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . We are seeking a senior leader to lead Revenue Strategy & Operations for Reddit’s Global Large Customer Sales (LCS) channel. This role will serve as the operating partner to the global LCS leadership team, helping translate company and channel strategy into clear goals, disciplined execution, and measurable revenue outcomes across regions, verticals, and customer segments. You will own the strategy and operations that drive LCS growth—from annual and quarterly planning through weekly performance management, forecasting, resource allocation, and execution of the highest-impact growth initiatives. You will partner closely with Sales, Finance, Marketing, Product, Business Operations, and other cross-functional leaders to improve sales productivity, unlock new pockets of demand, and scale a globally consistent go-to-market model. This is one role that will lead Strategy & Operations for the Global Large Customer Sales channel. The role is required to be based within commuting distance (50mi) of one of our North America sales hubs in San Francisco, Los Angeles, Chicago, New York, or Toronto. Responsibilities: Serve as a trusted strategic partner to the Global LCS leadership team, shaping channel strategy, priorities, operating model, and investment decisions. Lead the annual and quarterly planning processes for Global LCS, partnering with Finance as well as regional and vertical sales leaders to build credible goals, capacity plans, coverage models, and resource recommendations. Establish and run the global business

Designer, Portfolio At Kraft Heinz Design, we believe creativity has the power to make ideas unforgettable. We're looking for a Senior Designer to join our Portfolio Team and help shape the visual expression of seasonal campaigns across some of the world's most iconic brands. Working alongside the Kitchen, Creative Directors, Senior Designers, Art Directors, Copywriters, and Strategists, you'll help create compelling retail experiences and campaign assets that connect with consumers at the point of purchase. This is an opportunity to grow your craft while contributing to integrated campaigns that span retail, shopper marketing, and beyond. This role reports directly to the Head of Design at Kraft Heinz. If you're passionate about branding, retail Design, and creating beautifully crafted work, we'd love to meet you. What You'll Do Support the development of seasonal campaigns across a portfolio of Kraft Heinz brands. Design retail and shopper marketing assets, including point-of-sale materials, displays, merchandising, signage, promotional materials, and campaign collateral. Assist in developing campaign visual identities, design systems, and brand guidelines under the direction of Senior Designers and Creative Directors. Apply existing brand standards consistently across a wide variety of retail and marketing touchpoints. Collaborate with cross-functional teams to ensure designs are strategically aligned, on brand, and production-ready. Contribute ideas during creative development and help evolve concepts through design exploration. Prepare artwork and files for production while maintaining a high level of accuracy and attention to detail. Stay curious about design trends, retail innovation, and emerging creative tools to continuously develop your craft. What You'll Bring Experience in graphic design, branding, retail design, shopper marketing, or integrated marketing through an agency, in-house team, or equivalent experience. A portfolio demonstrating strong design

ROLE: CREATIVE TEAM (ART DIRECTOR & COPYWRITER) TEAM: THE KITCHEN NORTH AMERICA LOCATION: TORONTO (HYBRID - 2 DAYS ONSITE) ABOUT THE KITCHEN NORTH AMERICA The Kitchen brings together a range of disciplines and capabilities. It’s a team of creatives, producers, data analysts and social experts working together to deliver remarkable ideas that live in a variety of mediums, from everything from social to TV. This team moves at the speed of culture. It is built to respond to trends and events as they happen, coming up with the ideas that transcend social media to capture the spirit of the moment, earn media impressions, and get the country talking. Are you ready to join an award-ambitious team that's making waves in the advertising industry? Our incredible team has been recognized internationally by industry giants like Cannes, One Show and was named Campaign's Global ‘In-House Agency of The Year’, further solidifying our position as a leader in the industry. Join us and be a part of something truly special - a team that's dedicated to creating ground-breaking work and pushing limits. At The Kitchen, we're not just looking for individuals who want to be a part of the advertising industry - we're looking for trailblazers who are ready to lead the way to the next big thing! We want individuals who are passionate about producing award-winning work and have an innate drive to their craft and are eager to generate innovative ideas both within and outside of the brief. OVERVIEW The Kitchen is looking for an award-winning and innovative Art Director and Copywriter Team. You will be joining a team changing the way Kraft Heinz creates breakthrough creative and experiences. This Creative team is made up of two dedicated partners whose out-of-the-box ideas and delivery are on the same wavelength and in constant sync. This pair will create a wide range of ideas and creative concepts that stand out and earn attention. The work will range

ROLE: MEDIA ACTIVATION DIRECTOR TEAM: MEDIA LOCATION: TORONTO (HYBRID) COMPANY OVERVIEW At Salt Media , we're on a mission to earn the world's attention. As the media division of Salt XC, we're building a different kind of agency where media, commerce, creative, data and technology work as a single connected team. Our people combine strategic thinking with AI-powered tools, automation and advanced analytics to help some of North America's most recognized brands solve complex business challenges and drive measurable growth. We move quickly, challenge convention, and believe the best ideas come from curious people who are empowered to experiment. If you're looking to do career-defining work alongside smart, ambitious teammates in an environment that's shaping the future of media, we'd love to meet you. ROLE OVERVIEW The Media Activation Director is a data-driven, insights-led media strategist and platform expert with hands-on analytics, reporting, and management experience. The best candidate for this role will be a natural collaborator with strong presentation, organizational, and strategic thinking skills. They have a strong comprehension of the media landscape and a proactive nature combined with a high level of attention to detail. In this role, you'll be on top of current and emerging trends in the world of digital media capabilities and tech offerings. You ideally come with a breadth of experience across clients from different verticals and will be responsible for planning, developing, implementing, and managing the overall media strategy for your clients with your team. In addition, you are responsible for managing, guiding, and training your team. The role will require the right candidate to be highly proficient in media planning, implementation, activation, optimization, reporting, and analysis. This includes understanding online user journey optimizations, a very solid understanding of Google Analytics (tracking and analysis), performance optimiza

ROLE: SOCIAL COPYWRITER TEAM: THE KITCHEN NORTH AMERICA LOCATION: TORONTO (HYBRID) COMPANY OVERVIEW: The Kitchen brings together a range of disciplines and capabilities. It’s a team of creatives, producers, data analysts and social experts working together to deliver remarkable ideas that live in a variety of mediums, from everything from social to TV. This team moves at the speed of culture. It is built to respond to trends and events as they happen, coming up with the ideas that transcend social media to capture the spirit of the moment, earn media impressions, and get the country talking. Are you ready to join an award-ambitious team that's making waves in the advertising industry? Our incredible team has been recognized internationally by industry giants like Cannes, One Show and was named Campaign's Global In-House Agency of The Year, further solidifying our position as a leader in the industry. Join us and be a part of something truly special, a team that's dedicated to creating ground-breaking work and pushing limits. At The Kitchen, we're not just looking for individuals who want to be a part of the advertising industry, we're looking for trailblazers who are ready to lead the way to the next big thing. We want individuals who are passionate about producing award-winning work and have an innate drive to their craft and are eager to generate innovative ideas both within and outside of the brief. ROLE OVERVIEW: In this role as a Social Copywriter, you are part of an agile social team that is constantly looking for inspiration in the world, culture, and on the internet to find the next opportunity for a breakthrough social content. You are the voice of your brands online and therefore are responsible for shaping the brands’ personalities every day with the words and ideas you create for social. You have a deep understanding of your audience, and your brands’ passion points to be able to identify opportunities for social content. You have the creative abil

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! About the Role Are you passionate about secure-by-design software engineering? Do you want to be at the forefront of AI innovation and enterprise security? Cohere's North team is seeking a Software Engineer with a focus on security to join our mission and make a significant impact. This isn't a review-and-advise role, you'll own and ship production security features that customers rely on every day. Your Role: As a Senior Software Engineer with a security focus, you'll play a pivotal role in building and securing North's architecture. Your responsibilities will include: Software Development: Contributing to the core development of security features such as OIDC/OAuth flows and session management, ensuring North's AI agents are secure Secure Coding: Writing secure code to handle OIDC tokens, user claims, and sensitive data, adhering to best practices for JWT validation and encryption Authentication and Data Protection: Implementing authentication mechanisms including user login, token management, and authorization checks to maintain data integrity Tool Integration: Pulling in new tools to enhance North's security capabilities Dev

Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We’re training and deploying frontier models for enterprises who are building AI systems. We believe that our work is instrumental to the widespread adoption of AI and we are looking for folks that want to be part of that. We obsess over what we build. Each one of us is responsible for contributing to increasing the capabilities of our models and the value they drive for our customers. Cohere is a team of researchers, engineers, designers, and more, who are all passionate about their craft. We are a global technology company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! Why this role? This role is for people who love building tools for their coworkers. The Internal Applications team creates tools that help us create better models. In this role you will collaborate with internal stakeholders, which include annotators, ML researchers, product managers and more. Join our team of builders who create tooling that will pave the way for the next generation of large language models! As a Full-Stack Software Engineer on the Internal Applications team, you will: Work with a small talented and enthusiastic team of software engineers Contribute to delightful experiences for our user-facing products, meticulously crafting code for browsers and servers Collaborate and grow with your engineering colleagues of all levels through direct pairing sessions, architectural designs, documentation and talks Identify and remove roadblocks to enable your team to increase its engineering velocity. Build resilient systems that are mission-critical Keep up with the cutting edge and adopt new technologies to improve performance and reliability You may be a good fit if: You have experience shipping products with a large numb