Ai Senior Systems Engineer in Canada

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 the Engineering Manager for the Lakehouse Foundation team, you will lead a group of engineers responsible for the foundational data layer that all of Lyft's data systems and emerging AI workloads are built on. The team owns catalog and metadata management, table formats and storage, and the access patterns and gateways through which other engineering teams interact with Lyft's data. As Lyft converges on a unified lakehouse architecture, this team builds and operates the single source of truth that powers analytics, machine learning, experimentation, and every business decision made from data. You will play a key role in shaping the team's technical direction, partnering with peer Data Platform teams on a multi-year platform evolution, and developing engineers who operate with autonomy on systems of significant scale and complexity. Lyft's Infrastructure teams build the foundational systems that the rest of engineering depends on to move fast, ship reliably, and scale efficiently. These are high-leverage roles where the work you and your team do has a multiplicative effect across the company. We're looking for experienced leaders who can balance the discipline of operating critical infrastructure with the curiosity to keep evolving how Lyft builds. Engineering at Lyft is a place where managers and engineers operate with high ownership and strong technical judgment. Our engineers expect their managers to be honest, available, and focused on the work that matters: developing their teams, removing obstacles, and giving people the support they need to do their best work. We build teams that are inclusive, technically rigorous, and have a strong sense of ownership for what they build. Responsibilities: Lead a team responsible for Lyft's foundational data layer, including catalog and metadata management,

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 Safety and Customer Care (SCC) team at Lyft manages over 1.7 million monthly human and AI interactions and serves as Lyft's primary direct touchpoint with riders and drivers. We handle critical infrastructure that powers both human associates and AI agents to make riders and drivers feel safe and comfortable while riding or driving with Lyft, transforming every support interaction into a moment of genuine connection. As a Data Scientist working on Causal Inference in SCC, you'll partner with a strong team of engineers, product managers, designers, and operations leaders to deliver a personalized and exceptional experience for Lyft customers, using rigorous causal inference to guide the highest-stakes decisions we make. We're looking for a motivated and talented Data Scientist with deep causal inference expertise to join the SCC Data Science team. You'll partner closely with the area's tech lead on high-impact work spanning AI-powered support products, differentiated service, and operations optimization. The ideal candidate brings sharp applied inference intuition, a bias toward impact, and the ability to cut through ambiguity in complex problem spaces. You'll work on projects like: Design rigorous experiments and quasi-experiments to measure the causal impact of SCC product and AI-agent launches, and drive data-informed launch decisions. Build causal ML models to optimize concession budget allocation, targeting the right support credit, to the right rider or driver, at the right moment to maximize trust and business impact. Quantify the long-term effects of support-experience changes on rider and driver retention, and uncover heterogeneous treatment effects across our community. Deliver strategic insights on quality–cost tradeoffs, empowering leadership to balance service quality, coverage,

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. Lyft Urban Solutions (LUS) is North America’s leader in micromobility. We own, operate, or provide hardware and software solutions for bikeshare and scootershare programs in 50+ global markets including Montreal, Toronto, London, New York City, Mexico City and others. Our rapidly growing active fleet includes state-of-the-art charging stations, electric bikes, and scooters, and services hundreds of millions of rides per year. Data and analytics are at the heart of Lyft's products and decision-making. You will play a key role in shaping the future of bikeshare by leveraging data to improve the performance of our bikeshare and scooter markets. A successful candidate thrives in a dynamic and collaborative environment, has a natural curiosity, and isn’t afraid to dive deep. In this role, you will collaborate closely with Operations, Policy, Engineering, Product and Finance teams to drive data-informed strategies that align our operations and products with city transportation goals and user needs. You will work in a fast-paced environment where analytical insights directly impact decisions ranging from pricing and product features to long-term investments in bikesharing infrastructure. We’re looking for a passionate and driven Data Analyst to tackle some of the most complex and impactful challenges in micromobility. If you’re excited about shaping the future of urban mobility through data, we’d love to hear from you. Responsibilities: Partner with Product, Engineering, Policy, Operations, Finance and other cross-functional stakeholders on initiatives to conduct deep-dive analyses to root cause issues and propose solutions Develop frameworks, business logic and scalable processes to streamline reporting and drive decision-making Forecast operational requirements and investments needed to

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. Data Science is at the heart of Lyft’s products and decision-making. Data Scientists at Lyft operate in dynamic environments, moving quickly to build the world’s best transportation solutions. We tackle a wide range of challenges—from shaping long-term business strategy with data, to making critical short-term decisions, to developing algorithms and models that power both internal systems and customer-facing products. We are looking for an experienced and highly motivated Data Scientist to join the Central Market Management team and lead key initiatives that enhance the quality of our overall decision-making. You’ll work cross functionally with other Data Scientists, Data Analysts, Product Managers, and Finance partners to make sure we are making the most financially efficient decisions to scale our business. You will identify gaps in our operational processes and measurements, and work to create strategies, frameworks, and models to help address them and deliver impact. Responsibilities Leverage data and analytical frameworks to identify opportunities for improving operational efficiency Define and implement decision frameworks, measurement strategies, and scientific methodologies that bring consistency and rigor to business decisions and forecasts, balancing opportunity and uncertainty Deliver integrated, high-quality analytical outputs spanning multiple projects while navigating ambiguity, cross-team dependencies, and open-ended scope Define and implement a robust attribution framework to evaluate the performance of high-stakes decisions Act as a technical lead, guiding other Data Scientists and fostering a culture of analytical excellence Write efficient, clean, production-level code (Python, SQL), ensuring reproducibility, documentation, and long-term maintainability of analytical assets B

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 Pricing team is a centerpiece of Lyft’s marketplace, determining prices for all rideshare products and supporting new initiatives. Dynamic Pricing & Offer Selection sits at the heart of Pricing, focused on determining optimal prices and ETAs in real-time and balancing supply and demand for our two-sided marketplace to drive both short-term and long-term conversion and retention. As an Applied Scientist specializing in Machine Learning and Operations Research on this team, you will develop mathematical models and launch algorithms that power these key pricing and ETA decisions. You will leverage your skills to build ML and optimization models and productionalize pipelines that can scale to millions of calls per day while solving critical business problems that have a big impact on the marketplace and rider experience. You will get exposure to a diverse set of real-world problems across optimization, prediction, machine learning, and inference and collaborate closely with teammates and stakeholders across Pricing, from Product Managers to Engineers and Analysts. We are looking for someone who is excited about working in a fast-paced, innovative, and impactful environment, and is adept at balancing complexity and efficiency to translate real world business problems into reliable solutions, systems and decision frameworks. Responsibilities Partner with Data Scientists, Engineers, Product Managers, and Business Partners to frame problems mathematically and within the business context Write production quality code. Design, build and deploy production-grade ML and Optimization models. Able to build custom methods and tooling beyond off-the-shelf libraries. Perform data analysis and build proof-of-concepts to explore and propose ML and Optimization solutions to both new and existing problems.&n

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. Data and analytics are at the heart of Lyft Business's products and decision-making. We're looking to hire a Data Analyst to support our Self-Serve segment — the fastest-growing part of Lyft's B2B portfolio, serving small and mid-size businesses across North America. This is a hands-on role for an analyst who is energized by turning product and customer data into insights that shape strategy — and who builds those insights on a foundation others can trust and reuse. You will be the dedicated analytical partner to the Self-Serve product team, measuring how new features — a redesigned signup experience, onboarding improvements, and lifecycle campaigns — drive customer activation and growth. You'll own the funnel from acquisition through engagement, define the metrics that matter, and deliver the insights that inform where the business invests next. The ideal candidate pairs analytical rigor with a builder's instinct — turning recurring questions into well-defined, reusable datasets instead of one-off answers — and can translate findings into a clear narrative for both technical and non-technical audiences. Responsibilities: Produce high-impact analyses on Self-Serve performance that directly inform product and go-to-market strategy Own the Self-Serve funnel — acquisition, signup, onboarding, and engagement — building the dashboards and datasets that give the team real-time visibility into product health Define what the team's core metrics mean and where they live, so every dashboard, report, and tool returns the same answer to the same question Partner closely with Product and Engineering to validate instrumentation and surface data gaps before they distort the funnel or new features launch — catching the data quality issues that stay invisible until someone goes looking Turn recurring reporting into w

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. La communauté que vous rejoindrez : Le ou la gestionnaire de bureau joue un rôle essentiel dans la création d'une expérience de bureau fluide et accueillante en coordonnant les opérations quotidiennes du bureau, en soutenant les leaders locaux et les employés, et en veillant à ce que le bureau soit prêt à favoriser un excellent travail, la connexion et des rassemblements. Ce rôle travaille en étroite collaboration avec le directeur national ou la directrice nationale et plusieurs équipes afin de garantir que le bureau demeure un milieu de travail efficace, connecté et hautement fonctionnel. Ce rôle agit comme coordonnateur ou coordonnatrice clé auprès de nombreuses équipes, notamment : Opérations des espaces de travail, fournisseurs, Rassemblements, Sécurité, TI, Bureau du chef de la direction, Mission Control et Expérience employé. Le ou la gestionnaire de bureau veille à ce que le bureau soit constamment prêt à accueillir les employés, les leaders, les invités et les visiteurs, tout en soutenant les expériences qui donnent vie à la culture d'Airbnb. Ce rôle allie une solide exécution opérationnelle, le sens de l'accueil, l'organisation et la coordination administrative afin de créer un environnement où les employés se sentent soutenus et connectés. Ce rôle relève du directeur national ou de la directrice nationale et a une responsabilité hiérarchique indirecte envers les équipes régionales des Opérations des espaces de travail et des Rassemblements, dont il ou elle suivra les réunions d'équipe. La différence que vous ferez : À titre de gestionnaire de bureau, vous contribuez à donner vie à la culture d'Airbnb

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. Airbnb a pris le jour en 2007 lorsque deux Hôtes ont accueilli trois invités dans leur maison de San Francisco, et compte depuis lors plus de 4 millions d'Hôtes qui ont accueilli plus d'un milliard d'invités dans presque tous les pays du monde. Chaque jour, les Hôtes proposent des séjours et des expériences uniques qui permettent aux invités de se connecter de manière plus authentique aux communautés. La différence que vous ferez: Nous sommes à la recherche d'une personne dévouée et enthousiaste pour assurer une gestion exceptionnelle de l'assistance utilisateurs fournie à la communauté Airbnb en tant que Manager. La personne idéale est accueillante, dotée de capacités d'analyse et déterminée à assurer un service optimal en encadrant et en motivant son équipe. Le ou la Manager s'occupe d'un ou de plusieurs services internes de l'assistance utilisateurs. Le ou la Manager doit assurer un rôle de leadership opérationnel qui nécessite une solide expérience dans l'assistance utilisateurs et la gestion d'équipe. Les Managers supervisent des équipes d'environ 10 à 15 ambassadeurs et doivent être en mesure de les guider et de les motiver, en démontrant des compétences optimales en matière d'assistance utilisateurs. De solides compétences organisationnelles et la capacité à équilibrer le travail en temps réel et le travail planifié sont également nécessaires. Les futurs responsables doivent aussi être réactifs et capables de s'adapter à notre environnement dynamique, parfois sous pression, tout en restant flexibles, proactifs, ingénieux, efficaces et dotés d'un haut niveau de professionnalisme et de confidentialit

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. Airbnb a pris le jour en 2007 lorsque deux Hôtes ont accueilli trois invités dans leur maison de San Francisco, et compte depuis lors plus de 4 millions d'Hôtes qui ont accueilli plus d'un milliard d'invités dans presque tous les pays du monde. Chaque jour, les Hôtes proposent des séjours et des expériences uniques qui permettent aux invités de se connecter de manière plus authentique aux communautés. La communauté que vous rejoindrez: Nous recherchons un(e) candidat(e) engagé(e) et enthousiaste pour offrir un service client exceptionnel à la communauté Airbnb en tant que Spécialiste du service client, Support Premium. Le/la candidat(e) idéal(e) est accueillant(e), analytique et déterminé(e) à offrir un service de la plus haute qualité, tant à l’oral qu’à l’écrit, en Anglais et en Francais. La différence que vous ferez: L'associé(e) du support premium fonctionne en première ligne et interagit directement avec les clients et les parties prenantes internes. En tant qu'associé(e) du support premium, vous serez responsable de fournir un support de bout en bout aux membres clés de notre communauté, y compris, mais sans s'y limiter, le segment Luxe. Vous prendrez en charge les cas, garantissant une résolution complète tout en favorisant des relations solides avec nos utilisateurs tout au long du processus. Les associés du support premium ont besoin de solides compétences en communication, de capacités de résolution de problèmes et d'une expertise en matière de service client. Ils doivent également être adaptables et réactifs dans notre environnement en évolution rapide, parfois sous pression, tout en restant fl

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X , and discover the projects we’re solving on our Blog . Be sure to explore our Interviewing Guide to learn how to ace our interview process. About the Team Community Trust (CT) exists to foster an environment where streamers and their communities thrive, while proactively reducing harm and ensuring support is accessible when needed. Our organization encompasses safety policy & enforcement, fraud prevention, and customer experience. Within CT, the Business Operations & Integrations team is the operational backbone – encompassing four functions (Business Operations, Financial & Contract Management, Go-to-Market, and Safety by Design) split across two sub-teams: BizOps and Integrations. The Integrations team – which this role sits on – is the connective tissue between Community Trust and the rest of Twitch. We own the CT Readiness Program, ensuring every product, monetization, regulatory, or business development launch is operationally ready before it reaches our community (200+ launches per year). We also co-own Safety By Design, the process by which safety risks are identified and mitigated before products ship. We're building a team that can anticipate what's coming and react to what's arrived – getting CT into planning conversations earlier, simplifying how Twitch launches safely at scale, and building the systems that allow a small team to have outsized impact. About the Role This is a Program Manager II role on the Integration

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X , and discover the projects we’re solving on our Blog . Be sure to explore our Interviewing Guide to learn how to ace our interview process. About the Team Community Trust (CT) exists to foster an environment where streamers and their communities thrive, while proactively reducing harm and ensuring support is accessible when needed. Our organization encompasses safety policy & enforcement, fraud prevention, and customer experience. Within Customer Trust, the Strategic Intelligence & Governance (SIG) team is the strategic and enablement backbone of the department, where we ensure the business is set up correctly, measure whether it's working, surface insights to drive decisions, and provide the tools that power CT's day-to-day operations. The Business Intelligence function owns CT's data infrastructure, dashboards, financial analysis, and operational reporting, ensuring leadership has the insights they need to make informed decisions across the organization. About the Role As the Business Intelligence Program Manager, you will join a small, high-impact team responsible for CT's data infrastructure, operational reporting, analytical insights, and dashboards. You will translate operational data into clear insights that help leadership and partners make informed decisions across Trust & Safety (T&S) and Customer Experience (CX). You will also be responsible for CT’s financial operations, including operational expenses, work

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X , and discover the projects we’re solving on our Blog . Be sure to explore our Interviewing Guide to learn how to ace our interview process. About the Role The Twitch legal team is looking for an experienced person for the role of Contracts Manager. You will provide support for commercial and IP agreements, content partnerships, Twitch esports productions, and various marketing activations. This role is an excellent opportunity to join Twitch’s close-knit legal team, build relationships with counterparts at Amazon legal, and have fun tackling the complex issues of our user community. You can work from San Francisco, CA; Los Angeles, CA or Seattle, WA. You Will: Draft and negotiate agreements for software, SAAS, advertising, production, talent, content, marketing and other commercial transactions. Counsel our teams on many legal and business issues, including rights and clearances. Coordinate with diverse partners, including esports, procurement, business development, partnerships, marketing, sales, and finance. Collaborate with legal team members to improve processes and ensure business demands are satisfied. You Have: Bachelor's Degree or equivalent; 3+ years of experience navigating commercial transactions, preferably in the digital space Experience drafting and closing commercial agreements and improving contracting processes. Ability to work independently while also contributing successfully to cross-functional teams. S

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X , and discover the projects we’re solving on our Blog . Be sure to explore our Interviewing Guide to learn how to ace our interview process. About the Team Community Trust (CT) exists to foster an environment where streamers and their communities thrive, while proactively reducing harm and ensuring support is accessible when needed. Our organization encompasses safety policy & enforcement, fraud prevention, and customer experience. Within Customer Trust, the Strategic Intelligence & Governance (SIG) team is the strategic and enablement backbone of the department, where we ensure the business is set up correctly, measure whether it's working, surface insights to drive decisions, and provide the tools that power CT's day-to-day operations. The Business Intelligence function owns CT's data infrastructure, dashboards, financial analysis, and operational reporting, ensuring leadership has the insights they need to make informed decisions across the organization. About the Role As the Business Intelligence Program Manager, you will join a small, high-impact team responsible for CT's data infrastructure, operational reporting, analytical insights, and dashboards. You will translate operational data into clear insights that help leadership and partners make informed decisions across Trust & Safety (T&S) and Customer Experience (CX). You will also be responsible for CT’s financial operations, including operational expenses, work

About Us Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X , and discover the projects we’re solving on our Blog . Be sure to explore our Interviewing Guide to learn how to ace our interview process. About the Role The Twitch legal team is looking for an experienced person for the role of Contracts Manager. You will provide support for commercial and IP agreements, content partnerships, Twitch esports productions, and various marketing activations. This role is an excellent opportunity to join Twitch’s close-knit legal team, build relationships with counterparts at Amazon legal, and have fun tackling the complex issues of our user community. You can work from San Francisco, CA; Los Angeles, CA or Seattle, WA. You Will: Draft and negotiate agreements for software, SAAS, advertising, production, talent, content, marketing and other commercial transactions. Counsel our teams on many legal and business issues, including rights and clearances. Coordinate with diverse partners, including esports, procurement, business development, partnerships, marketing, sales, and finance. Collaborate with legal team members to improve processes and ensure business demands are satisfied. You Have: Bachelor's Degree or equivalent; 3+ years of experience navigating commercial transactions, preferably in the digital space Experience drafting and closing commercial agreements and improving contracting processes. Ability to work independently while also contributing successfully to cross-functional teams. S

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 Stripe processes over $1T in payments volume per year, which is roughly 1% of the world’s GDP. The tremendous amount of data makes Stripe one of the best places to do machine learning. The ML Infra team builds services and tools that power every step in the ML lifecycle, including data exploration, feature generation, experimentation, training, deploying, serving ML models, and building LLM applications. With the phenomenal developments happening in the field of AI, we are positioned to accelerate the adoption of AI/ML across all parts of the company by building highly scalable and reliable foundational infrastructure. What you’ll do You will work closely with machine learning engineers, data scientists, and product engineering teams to enable seamless end-to-end experience in building solutions across data, analytics, and AI/ML platforms. You will build the next generation of ML Infra services and major new capabilities that substantially improve ML development velocity and MLOps maturity across the company. Responsibilities Designing and building scalable, reliable, and secure services for notebooks, ML model training, experimentation, serving, and LLM applications across multiple regions. Creating services and libraries that enable ML engineers at Stripe to seamlessly transition from experimentation to production across Stripe’s systems. Working directly with product teams and ML engineers to improve their day-to-day pr