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Added 6 mins ago
Sr. Associate, Manufacturing Engineering, Mechanical Projects 1
L3Harris Technologies
ON · Waterdown, ON
…and manufacturability of MX products. Working within a cross-functional team of Engineering, Production, Manufacturing Engineering, and Procurement, this role supports both New Product…
Added 6 mins ago
Bilingual Data Engineer
CMHC - SCHL
Ottawa, ON · Montreal, QC
Partner with CMHC business lines and collaborate with cross-functional stakeholders, including data architects, data stewards, data scientists, and enterprise architects, to deliver…
Added 6 mins ago
TT
Design Specialist -- Test (Senior)
Teledyne Technologies Incorporated
Waterloo, ON · Canada - Waterloo, ON
- Full-time
Working closely with cross‑functional teams - including engineering, manufacturing, and technical support - the Design Specialist – Test integrates multiple tools, processes, and…
Added 6 mins ago
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Senior Full Stack Engineer, Customer & Cardholder Experiences
Marqeta
Remote, Canada
- Full-time
- Remote
…problems. You will work in collaboration with your team and cross-functional…
Added 20 mins ago
E
ICAT, Project Coordinator
EllisDon
Toronto, ON
- Full-time
Support commissioning, functional performance testing, temporary power/cooling requirements, and the readiness of computer rooms and telecom spaces.
Added 20 mins ago
A
Senior User Experience Designer
Akkodis
Toronto, ON
- Contract
Demonstrated effectiveness in working closely with cross-functional teams, including developers, QA specialists, and business stakeholders, to achieve common project goals.
Added 20 mins ago
BS
Senior Technology Risk Analyst
Brainhunter Systems Ltd
Toronto, ON
- Contract
Lead the design, implementation, and testing of technology controls, ensuring alignment with internal standards and external frameworks (e.g., ISO 27001, ICOFR, SOC 2, SWIFT, PCI DSS)
Added 20 mins ago
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Senior ERP Transformation Project Manager
Yochana
Brampton, ON
- Contract
…delivery, stakeholder engagement, vendor management, and cross-functional…
Added 35 mins ago
SI
System Project Manager
Symtech Innovations Ltd.
Richmond Hill, ON
- Full-time
Oversee commissioning, functional testing, and system acceptance activities.
Added 35 mins ago
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Marketing Content Manager
MEDFAR
Montreal, QC
- Full-time
Monitor content performance and use data and audience insights to refine content strategy, testing different formats, messages, and distribution strategies to drive stronger results.
Added 35 mins ago
LT
Automation and Build Developer II
LMI Technologies
Burnaby, BC
- Full-time
…well-defined deliverables: designing, building, optimizing, testing, and documenting the pipelines that keep everyone else shipping…
Added 36 mins ago
A
Product Development Assistant
ARC'TERYX
North Vancouver, BC
- Full-time
…innovative product. Our team builds strong relationships with cross-functional partners to realize ideas into commercialized…
Added 36 mins ago
EB
Lead, Business System Analyst
EQ Bank | Canada's Challenger Bank
Toronto, ON
- Full-time
The Lead Business System Analyst (BSA) will facilitate the identification and documentation of detailed user stories (functional requirements), process and system flows and contribute to…
Added 36 mins ago
IS
Software Development Manager
Intellijoint Surgical
Kitchener, ON
- Full-time
Accountable for the Software Development function (people and process) from backlog refinement through inline testing
Added 36 mins ago
Marine Operations & Logistics Manager
Amrize
Coquitlam, BC
Develop strong cross-functional partnerships across Amrize to align Marine Operations with broader business objectives and optimize opportunities across product lines and the supply chain.
Added 46 mins ago
LC
Mechanical Design Engineer - Line Support
Linamar Corporation
Guelph, ON
- Full-time
…perspective, increase manufacturability and efficiency, resolve functional issues with machines, determine root cause and resolve field issues, and design new options for…
Added 46 mins ago
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Backend Java Developer, Vice President
Citi
Mississauga, ON
- Full-time
…while solving our bankers’ biggest pain points. We are a cross-functional, globally distributed team of talented individuals, creating platforms/products that aims to deliver innovative…
Added 49 mins ago
EB
Lead, Business System Analyst
EQ Bank
Toronto, ON
- Full-time
The Lead Business System Analyst (BSA) will facilitate the identification and documentation of detailed user stories (functional requirements), process and system flows and contribute to…
Added 49 mins ago
BS
Technology Risk Analyst
Brainhunter Systems Ltd
Toronto, ON
- Contract
What you will do:Lead the design, implementation, and testing of technology controls, ensuring alignment with internal standards and external frameworks (e.g., ISO 27001, ICOFR, SOC 2,…
Added 49 mins ago
HR
Technical Specialist, Senior - Vital Software
Hitachi Rail
Toronto, ON
- Full-time
The Senior Software Technical Specialist leads the design, development, integration, and testing of complex operationally critical and safety-critical software systems within the railway…
Added 49 mins ago
AS
SENIOR BUSINESS ANALYST, DATA & ANALYTICS
Alliance Search Partners
Toronto, ON
- Full-time
● Act as the functional lead and subject matter expert on the requirements throughout solution design, development, testing, and implementation activities.
Added 49 mins ago
CD
Gestionnaire marketing – Amériques | Marketing Manager - Americas
Cirque du Soleil Entertainment Group
Montreal, QC
- Full-time
Added 49 mins ago
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Technical Product Manager
TALTEK | TALENT in TECHNOLOGY
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
Added 49 mins ago
LT
Automation Engineer
Lorven Technologies Inc.
Mississauga, ON
- Contract
…Playwright-based test automation and a solid background in manual testing. You will be responsible for ensuring product quality through test strategy, automation framework development,…
Added 49 mins ago
AI
Senior QA
AI Interviews
Toronto, ON · Greater Toronto Area, Canada
- Contract
Perform functional, regression, integration, smoke, sanity, and exploratory testing.

Lyft

Senior Machine Learning Engineer, Recommendations

Toronto, ON, Canada

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Job details

Experience: 5+ years (or Ph.D. with 3+ years) of experience in machine learning modelling or related fields
Posting language: English
Posted: Oct 6, 2026

Original job description

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.

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More about this job

Responsibilities

The role involves designing, building, and deploying scalable machine learning models for real-time applications while architecting reliable ML pipelines. You will also provide technical leadership, mentor junior engineers, and collaborate across teams to align ML initiatives with business goals.

Requirements

Candidates must hold an M.S. or Ph.D. in Computer Science or a related field with at least 5 years of experience in machine learning modeling. Proficiency in Python or Golang, deep learning frameworks, and the ability to translate research into production systems are required.

Skills

Machine learning
Deep learning
Recommendation systems
TensorFlow
PyTorch
Python
Golang
System architecture
LLMs
Statistical analysis
Regression analysis
Hypothesis testing
Data science
Technical leadership
Mentorship
Production-ready deployment

Benefits

Extended health and dental coverage
Life insurance
Disability benefits
Mental health benefits
Family building benefits
Child care benefits
Pet benefits
Health Care Savings Account
RRSP plan with company match
Flexible paid time off
Paid parental leave
Subsidized commuter benefits
Lyft ride credits

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
Artificial Intelligence
Recommendation Systems
Deep Learning
TensorFlow
PyTorch
Python
Golang
LLMs
Data Science
System Architecture
ML Pipelines
Regression Analysis
Hypothesis Testing
Production Engineering
Applied AI
Software Engineering
Technical Leadership
Mentorship
Ride-sharing
Data-driven decision making
Scalable systems
Algorithm development
Research to production
Cross-functional collaboration

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