
Lyft · 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...
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.
Machine Learning is at the heart of Lyft’s products and decision-making. Machine Learning Engineers at Lyft operate in dynamic
environments, moving quickly to build the world’s best transportation solutions. We tackle a wide range of challenges, from
pricing and marketplace frameworks that ensure reliability and competitiveness, to agentic AI platforms that automate analytical
workflows, to behavioral detection systems that protect the integrity of our network. We operate at the intersection of applied ML
and real business impact, shipping models that directly influence revenue, rider experience, and partner trust.
Lyft Business builds products that help organizations move the people who matter most—employees, customers, patients, and
guests—easily and efficiently. Our offerings include Business Travel, Lyft Pass, and Concierge (for healthcare and non-healthcare
rides), enabling companies to manage transportation at scale through APIs, integrations (e.g., Concur, Expensify), and dedicated
tools. These platforms power high-impact B2B use cases across corporate travel, healthcare access, customer experience, and
community programs.
We're looking for a Machine Learning Engineer to design, build, and deploy ML systems across Lyft Business. This is a high-scope
role: you won't be siloed into one problem area. Instead, you'll move across pricing algorithms, fraud and behavior detection,
agentic AI systems, and emerging ML applications as the business evolves. You'll write production-quality code, own models
end-to-end from prototyping through deployment, and collaborate closely with Data Scientists, Product Managers, and Software
Engineers to translate complex business problems into scalable ML solutions.
This role is ideal for someone who is technically versatile, energized by variety, and wants to see their work directly shape a
large-scale business.
detection, and anomaly/behavior detection — in production environments serving millions of rides
operational overhead
production at scale
and pitch solutions
policy allows team members to take off as much time as they need (with manager approval). Hourly team members get 15 days paid
time off, with an additional day for each year of service
programs. Biological, adoptive, and foster parents are all eligible.
Lyft is committed to creating an inclusive workforce that fosters belonging. Lyft believes that every person has a right to equal
employment opportunities without discrimination because of race, ancestry, place of origin, colour, ethnic origin, citizenship,
creed, sex, sexual orientation, gender identity, gender expression, age, marital status, family status, disability, pardoned
record of offences, or any other basis protected by applicable law or by Company policy. Lyft also strives for a healthy and safe
workplace and strictly prohibits harassment of any kind. Accommodation for persons with disabilities will be provided upon
request in accordance with applicable law during the application and hiring process. Please contact your recruiter if you wish to
make such a request.
Lyft highly values having employees working in-office to foster a collaborative work environment and company culture. This role
will be in-office on a hybrid schedule — Team Members will be expected to work in the office at least 3 days per week, including
on Mondays, Wednesdays, and Thursdays. Lyft considers working in the office at least 3 days per week to be an essential function
of this hybrid role. Your recruiter can share more information about the various in-office perks Lyft offers. Additionally, hybrid
roles have the flexibility to work from anywhere for up to 4 weeks per year. #Hybrid
The expected base pay range for this position in the Toronto area is CAD $118,800 - CAD $148,500, not inclusive of potential
equity offering, bonus or benefits. Salary ranges are dependent on a variety of factors, including qualifications, experience and
geographic location. Your recruiter can share more information about the salary range specific to your working location and other
factors during the hiring process.
Lyft may use artificial intelligence to screen applicants, however, Lyft employees make the ultimate selection and hiring
decisions.
This job fills an existing vacancy.
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. With a billion rides per year and counting, Lyft is solving hard problems in a rapidly growing domain with a lot of data and creative solutions in Rider, Marketplace, Growth, and beyond. While traditional approaches to optimization and problem decomposition are sufficient to disrupt transportation, building a next-generation platform for low-cost, ultra-immersive transportation to improve people's lives warrants modern ML utilizing peta-byte scale data. Our highly motivated Machine Learning Engineers work on these challenging problems and define solutions to directly impact various aspects of our core business. If you are a critical thinker with experience in machine learning workflows and LLMs, passionate about solving business problems using data and working in a dynamic, creative, and collaborative environment, we are searching for you. We are seeking a Senior Machine Learning Engineer to join the Rider Applied AI team and lead the design, development, and deployment of state-of-the-art machine learning and artificial intelligence systems. This role requires a strategic thinker who can balance high-level system architecture with hands-on technical implementation. You will collaborate across teams to shape the future of ride-sharing by leveraging AI, Machine learning and Data science. RESPONSIBILITIES: * Model Development & Research: Design, build, and deploy machine learning models for real-time applications, including translating state-of-the-art research into production-ready solutions. * System Design: Architect scalable, reliable ML pipelines that integrate seamlessly with existing backend systems. * Innovation & Applied Research: Stay ahead of the curve by exploring emerging algorithms, technologies (such as LLMs and LLM-based applications), and frameworks — critically evaluating new research and identifying high-impact use cases across business areas. * Collaboration: Partner with ML engineers, product managers, data scientists, and software engineers to align ML initiatives with business goals. * Data-Driven Decision Making: Leverage data-driven insights to inform and refine ML strategies and solutions. * Mentorship & Technical Leadership: Provide technical direction, mentor Junior engineers, and foster a culture of learning and collaboration. * Code Quality: Write production-level code and participate in code reviews to ensure quality and share knowledge across the team. EXPERIENCE: * * M.S. or Ph.D. in Computer Science or related technical field * 5+ years (or Ph.D. with 3+ years) of experience in machine learning modelling or related fields * Experience with deep learning technologies for recommendation systems, including TensorFlow, PyTorch, or similar frameworks * Understanding of statistical concepts such as hypothesis testing, regression analysis, and performance evaluation metrics for machine learning * Experience with translating state-of-the-art ML research into production systems * Proficiency in Python, Golang, or other programming language * Proven ability to tackle ambiguous problems and deliver solutions at scale. * Strong communication and interpersonal skills for effective cross-functional collaboration. BENEFITS: * Great medical, dental, and vision insurance options with additional programs available when enrolled * Mental health benefits * Family building benefits * Child care and pet benefits * 401(k) plan with company match to help save for your future * In addition to 12 observed holidays, salaried team members have discretionary paid time off, hourly team members have 15 days paid time off * 18 weeks of paid parental leave. Biological, adoptive, and foster parents are all eligible * Subsidized commuter benefits * Monthly Lyft credits and complimentary Lyft Pink membership Lyft is an equal opportunity employer committed to an inclusive workplace that fosters belonging. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, age, genetic information, or any other basis prohibited by law. We also consider qualified applicants with criminal histories consistent with applicable federal, state and local law. Lyft highly values having employees working in-office to foster a collaborative work environment and company culture. This role will be in-office on a hybrid schedule — Team Members will be expected to work in the office 3 days per week on Mondays, Wednesdays, and Thursdays. Lyft considers working in the office at least 3 days per week to be an essential function of this hybrid role. Your recruiter can share more information about the various in-office perks Lyft offers. Additionally, hybrid roles have the flexibility to work from anywhere for up to 4 weeks per year. #Hybrid The expected base pay range for this position in the San Francisco area is $162,800 - $203,500, not inclusive of potential equity offering, bonus or benefits. Salary ranges are dependent on a variety of factors, including qualifications, experience and geographic location. Your recruiter can share more information about the salary range specific to your working location and other factors during the hiring process.
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. With a billion rides per year and counting, Lyft is solving hard problems in a rapidly growing domain with a lot of data and creative solutions in Rider, Marketplace, Growth, and beyond. While traditional approaches to optimization and problem decomposition are sufficient to disrupt transportation, building a next-generation platform for low-cost, ultra-immersive transportation to improve people's lives warrants modern ML utilizing peta-byte scale data. Our highly motivated Machine Learning Engineers work on these challenging problems and define solutions to directly impact various aspects of our core business. If you are a critical thinker with experience in machine learning workflows and LLMs, passionate about solving business problems using data and working in a dynamic, creative, and collaborative environment, we are searching for you. We are seeking a Senior Machine Learning Engineer to join the Rider Applied AI team and lead the design, development, and deployment of state-of-the-art machine learning and artificial intelligence systems. This role requires a strategic thinker who can balance high-level system architecture with hands-on technical implementation. You will collaborate across teams to shape the future of ride-sharing by leveraging AI, Machine learning and Data science. RESPONSIBILITIES: * Model Development & Research: Design, build, and deploy machine learning models for real-time applications, including translating state-of-the-art research into production-ready solutions. * System Design: Architect scalable, reliable ML pipelines that integrate seamlessly with existing backend systems. * Innovation & Applied Research: Stay ahead of the curve by exploring emerging algorithms, technologies (such as LLMs and LLM-based applications), and frameworks — critically evaluating new research and identifying high-impact use cases across business areas. * Collaboration: Partner with ML engineers, product managers, data scientists, and software engineers to align ML initiatives with business goals. * Data-Driven Decision Making: Leverage data-driven insights to inform and refine ML strategies and solutions. * Mentorship & Technical Leadership: Provide technical direction, mentor Junior engineers, and foster a culture of learning and collaboration. * Code Quality: Write production-level code and participate in code reviews to ensure quality and share knowledge across the team. EXPERIENCE: * M.S. or Ph.D. in Computer Science or related technical field * 5+ years (or Ph.D. with 3+ years) of experience in machine learning modelling or related fields * Experience with deep learning technologies for recommendation systems, including TensorFlow, PyTorch, or similar frameworks * Understanding of statistical concepts such as hypothesis testing, regression analysis, and performance evaluation metrics for machine learning * Experience with translating state-of-the-art ML research into production systems * Proficiency in Python, Golang, or other programming language * Proven ability to tackle ambiguous problems and deliver solutions at scale. * Strong communication and interpersonal skills for effective cross-functional collaboration. BENEFITS: * Extended health and dental coverage options, along with life insurance and disability benefits * Mental health benefits * Family building benefits * Child care and pet benefits * Access to a Lyft funded Health Care Savings Account * RRSP plan with company match to help save for your future * In addition to provincial observed holidays, salaried team members are covered under Lyft's flexible paid time off policy. The policy allows team members to take off as much time as they need (with manager approval). Hourly team members get 15 days paid time off, with an additional day for each year of service * Lyft is proud to support new parents with 18 weeks of paid time off, designed as a top-up plan to complement provincial programs. Biological, adoptive, and foster parents are all eligible. * Subsidized commuter benefits and Lyft ride credits Lyft is committed to creating an inclusive workforce that fosters belonging. Lyft believes that every person has a right to equal employment opportunities without discrimination because of race, ancestry, place of origin, colour, ethnic origin, citizenship, creed, sex, sexual orientation, gender identity, gender expression, age, marital status, family status, disability, pardoned record of offences, or any other basis protected by applicable law or by Company policy. Lyft also strives for a healthy and safe workplace and strictly prohibits harassment of any kind. Accommodation for persons with disabilities will be provided upon request in accordance with applicable law during the application and hiring process. Please contact your recruiter if you wish to make such a request. Lyft highly values having employees working in-office to foster a collaborative work environment and company culture. This role will be in-office on a hybrid schedule — Team Members will be expected to work in the office at least 3 days per week, including on Mondays, Wednesdays, and Thursdays. Lyft considers working in the office at least 3 days per week to be an essential function of this hybrid role. Your recruiter can share more information about the various in-office perks Lyft offers. Additionally, hybrid roles have the flexibility to work from anywhere for up to 4 weeks per year. #Hybrid The expected base pay range for this position in the Toronto area is $149,600-$187,000 CAD, not inclusive of potential equity offering, bonus or benefits. Salary ranges are dependent on a variety of factors, including qualifications, experience and geographic location. Your recruiter can share more information about the salary range specific to your working location and other factors during the hiring process. Lyft may use artificial intelligence to screen applicants, however, Lyft employees make the ultimate selection and hiring decisions. This job fills an existing vacancy.
ABOUT NOTO Noto is building the AI native operating system for after school businesses like tutoring centers, music schools, and sports academies. Our mission is to power the 150K after-school businesses across the U.S. with a unified platform that replaces spreadsheets and outdated tools. We recently raised a $3.8 M seed from Base10 Partners and South Park Commons. Founded by two technical founders — AJ Ding (CEO) and Steve Wang (CTO) — we’re based in NYC and assembling a small, exceptional team of builders who care deeply about craft, users, and impact. Join us to build software that empowers small-business owners in local communities! (us at karaoke with one of our favorite customers) TEAM BACKGROUND 🤝🏻 AJ Ding (CEO) - Second-time founder and previously built an AI recruiting company. He was a machine learning engineer and data scientist at Quora, Lyft, & Meta. He studied Statistics at Yale and most importantly, he comes from a family of small business owners. Steve Wang (CTO) - Former Head of Engineering at Nitra (a16z backed vertical SaaS). He's worked in data science and engineering at Lyft. He studied math at Harvard, and his family is from Canada. LOCATION 📍 * 4 days in-office (Union Square area) * 1 day remote per week * 1 week per quarter work from anywhere * Occasional travel for team off sites and customer visits WORK CULTURE 💼 * High Camaraderie: We are in the trenches together and celebrate our collective success. * Low Ego: We believe in collaboration over hierarchy 🤝. We have a flat decision-making structure—great ideas can come from anywhere. * High Output: Expect an intense, high-growth environment — roughly 55-60 hours on average. We invest that time because every week moves the product forward and our users closer to success. * Have Fun: Hackathons in Mexico City 🌮, karaoke with customers, team off-sites. * Growth Mindset: We attend industry events and learn directly from our users. THE ROLE 🎯 We’re hiring a Senior or Staff Level Founding Engineer who will partner directly with our CTO (Steve) to help lead product, engineering, and design. This is not a typical developer role. You will: * 🧭 Drive engineering execution – help with sprint planning, code reviews, and release quality. * 🧩 Collaborate cross-functionally – work with QA, design, Customer Success, Sales, and GTM to guide product decision making, drive architecture, and shape how we build as we scale. * ⚙️ Build with ownership – ship large features end-to-end, define engineering culture and process as we scale. * 🏗️ Set technical direction – make architectural decisions that shape our next 3 years of growth. * 🤝 Mentor & unblock others – be the first line of defense for technical and product questions and help the team move faster. IDEAL CANDIDATE 💡 * Comfortable leading projects * Hungry for growth and impact. There’s no ceiling to your growth here— take on as much responsibility as you’re ready for * Thrives in ambiguous environments and takes ownership end-to-end * Excited to help small businesses thrive through technology * 5+ years of experience * Full-stack (React, Next.js, Node, Postgres) ENGINEERING CULTURE 🛠️ We value product-minded engineers who think like founders. You’ll own features end-to-end and help shape the roadmap. We tolerate messiness to ship quickly, but take responsibility for cleaning up our tech debt. As the founding engineering, you will help shape a strong engineering culture that keeps us efficient and motivated: 1. Always Be Shipping – Progress over perfection, iterate quickly 2. Pride in our Craft – Quality matters - we take pride in our work 3. Serve the Customer – Our users run small businesses; we exist to make their lives easier COMPENSATION & PERKS 💰 * Competitive pay and meaningful equity 📈 * Office lunch and a stipend for work-related expenses 🍕 * Company Retreats – Join us for team retreats to bond, recharge, and plan the future together ✈️ * 100 % company-paid benefits 🏥 INTERVIEW PROCESS 🧩 1. 30 min behavioral with AJ 2. 45 min System Design 3. 45 min Coding Interview 4. Onsite (in NYC) to experience a day in the life WHY WORK WITH US ❤️ * Serve everyday people in local communities and make a large impact in an underserved market * "Y'all are incredible and have made such a difference in my life in ways both professional and personal. I'm grateful and indebted." - Noto Customer 🥰 * Each customer averages over 6 hours of usage / day) * Work with a smart, collaborative, ambitious, and caring team * Fast paced environment * High level of ownership * Fun founders + team off-sites 😄 👀 SOUND INTERESTING? Let’s talk. If you’re excited to build from ( almost ) zero to one, own meaningful parts of the stack, and help scale a product loved by educators and creators, we’d love to meet you! ✉️