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Added 40 mins ago
SP
Recruiting Coordinator (Contract)
Salesforce Partner Canada
Toronto, ON
- Contract
Experience will be evaluated based on alignment to the core competencies for the role (e.g. extracurricular leadership roles, military experience, volunteer work, etc.)
Added 55 mins ago
TB
PT Support Associate - Seasonal
Tory Burch
Richmond, BC
- Part-time
We believe in the importance of giving back and you’ll have many opportunities to do just that through the Tory Burch Foundation and paid volunteer days.
Added 1 hour ago
T
Privacy Counsel (Data Privacy Lawyer)
TAIRC
Niagara-on-the-Lake, ON
- Volunteer
TAIRC is currently building its funding base. Opportunities identified as volunteer or unpaid do not provide compensation at this stage. Any future paid appointment would require available…
Added 1 hour ago
SA
St Augustine’s is looking for a treasurer
St Augustine's College of Theology
Montreal, QC · Urban agglomeration of Montreal, QC
- Full-time
Added 2 hours ago
O
Office Clerk
OPENLANE
Richmond, BC
- Full-time
Employer paid Leap into Service Day to volunteer
Added 2 hours ago
FT
Machine Learning Engineer
FDE Times
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Added 2 hours ago
FT
Senior Machine Learning Engineer
FDE Times
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Added 4 hours ago
CL
Part Time Direct Support Professional
Community Living Central York
Newmarket, ON
- Part-time
…intellectual disability. The organization is under the direction of a volunteer Board of Directors consisting of people who receive support, family members and other members of the…
Added 5 hours ago
TB
PT Support Associate - Seasonal
Tory Burch
Halton Hills, ON
- Part-time
We believe in the importance of giving back and you’ll have many opportunities to do just that through the Tory Burch Foundation and paid volunteer days.
Added 6 hours ago
TL
Deputy Fire Chief
The Loomex Group
Sussex, NB
- Full-time
Assign operational and training duties to the fire department’s volunteer personnel.
Added 7 hours ago
C
Associate Insurance Advisor - Farm Specialist
Co-operators
Ponoka, AB
- Full-time
…5%, 15 vacation days to start, paid training and licensing, 2 volunteer days per year, and ample opportunities for…
Added 8 hours ago
O
Office Clerk
OPENLANE
Richmond, BC
- Full-time
Employer paid Leap into Service Day to volunteer
Added 10 hours ago
BM
Assistant Manager, Alpine Race & Freestyle - Full Time
Blue Mountain Resort
The Blue Mountains, ON
- Full-time
Assist as a liaison with Alpine Ontario, Freestyle Ontario, Snowboard Ontario, and the Jozo Weider Volunteer Committee.
Added 10 hours ago
O
Office Clerk
OPENLANE
Richmond, BC
- Full-time
Employer paid Leap into Service Day to volunteer
Added 11 hours ago
CF
Building Operator I (Retail)
Cadillac Fairview
Richmond, BC
- Full-time
…benefits plan, paid time off including vacation, wellbeing & volunteer days and support for continued growth and…
Added 12 hours ago
C
Line Cook
Cineplex
Barrie, ON
- Part-time
Demonstrate flexibility and volunteer to fill open shifts as required by variations in staffing.
Added 14 hours ago
TC
Volunteer Accountant
The Clifton Women's Healthcare Education Network
Canada
- Full-time
We are seeking a motivated, skilled individual to join us as a Volunteer/ Pro Bono Accountant.
Added 17 hours ago
ET
Talent & Programme Operations Intern
Enabled Talent
Brampton, ON
- Contract
Prior professional experience is not essential. Experience supporting student groups, community programmes, events or volunteer activities is welcome.
Added 18 hours ago
E
Senior Java Developer - Core/Infra - Elasticsearch
Elastic
Canada
- Full-time
Up to 40 hours each year to use toward volunteer projects you love
Added 18 hours ago
Accounts Payable Specialist
ROSEN-Group
Calgary, AB
Added 18 hours ago
TU
Finance Administration Manager
The University Club of Toronto
Toronto, ON
- Full-time
Working together with all Senior club leaders including the CEO, other senior managers, department heads, as well as a volunteer Board of Directors. Dotted line reporting to the…
Added 20 hours ago
CU
Youth Programs Lead
Calgary Ultimate Association
Calgary, AB · Greater Calgary Metropolitan Area
- Contract
Support volunteer recruitment and engagement within youth programs
Added 22 hours ago
A
Senior Manager, Business Human Resources - Allergan Aesthetics (18 month contract)
AbbVie
Markham, ON
- $134,000 to $184,000 CAD / year
- Contract
Paid time off: vacation, holidays, personal days, and volunteer days
Added 22 hours ago
LS
Operations and Club Services Manager - Permanent - 19637
LRO Staffing
Ottawa, ON
- Full-time
Provide administrative guidance and support to volunteer team managers, coaches, and treasurers regarding Club policies, procedures, travel insurance, travel permits, and other team-related…
Added 23 hours ago
BL
Office Services Clerk
BC Legal Management Association
Vancouver, BC
- Other
Paid Time Off: vacation time starts at 3 weeks, personal days, sick time, and a volunteer day every year.

FDE Times

Machine Learning Engineer

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Nov 25, 2026
Experience: 3-5+ years of experience building, deploying, and operating machine learning systems in production
Posting language: English
Posted: Nov 8, 2026

Original job description

Job Description

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.

At Reddit, machine learning sits at the heart of how millions of people discover, connect, and engage with the world’s largest collection of human conversations. From powering personalized recommendations and search to optimizing advertising systems and marketplace dynamics, our ML engineers tackle some of the most interesting and impactful problems in large-scale applied machine learning.

We hire Machine Learning Engineers across both our Consumer and Ads organizations, giving you the opportunity to work on a wide range of high-impact problems across the Reddit ecosystem.

We are looking for Machine Learning Engineers who are excited to build systems end-to-end, from research and modeling to production deployment, - and who want to help shape the future of discovery, relevance, and monetization at Reddit.

If you love working on complex, real-world ML problems at massive scale, this role is for you.

What You’ll Work On

As a Machine Learning Engineer At Reddit, You Will Design And Build Production ML Systems That Power Core Experiences Across The Platform, Including

Personalized recommendations, search, and ranking systems that help users discover the most relevant content and communities
Intelligent advertising systems including ranking, bidding, measurement, and optimization
Content, Advertisers, and User understanding, from building foundational content/user representations to deriving insightful signals
Large-scale machine learning pipelines, model serving infrastructure, and real-time decision systems
Applied AI and LLM-driven experiences that improve relevance, discovery, and user engagement

You’ll work on high-impact systems that operate at internet scale and directly influence user experience, advertiser value, and business outcomes.

What You’ll Do

Design, build, and deploy production-grade machine learning models and systems at scale
Own the full ML lifecycle: from problem definition and feature engineering to training, evaluation, deployment, and monitoring
Build scalable data and model pipelines with strong reliability, observability, and automated retraining
Work with large-scale datasets to improve ranking, recommendations, search relevance, prediction, content/user understanding, and optimization systems.
Partner cross-functionally with Product, Data Science, Infrastructure, and Engineering teams to translate complex problems into ML solutions
Improve system performance across latency, throughput, and model quality metrics
Research and apply state-of-the-art machine learning and AI techniques, including deep learning, graph & transformers based, and LLM evaluation/alignment
Contribute to technical strategy, architecture, and long-term ML roadmap

Basic Qualifications

3-5+ years of experience building, deploying, and operating machine learning systems in production
Strong programming skills in Python, Java, Go, or similar languages, with solid software engineering fundamentals
ML Fundamentals: a strong grasp of algorithms, from classic statistical learning (XGBoost, Random Forests, regressions) to DL architectures (Transformers, CNNs, GNNs)
Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow)
Experience designing scalable ML pipelines, data processing systems, and model serving infrastructure
Ability to work cross-functionally and translate ambiguous product or business problems into technical solutions
Experience improving measurable metrics through applied machine learning

Preferred Qualifications

Experience with recommender systems, search/ranking systems, advertising/auction systems, large-scale representation learning, or multimodal embedding systems
Familiarity with distributed systems and large-scale data processing (Spark, Kafka, Ray, Airflow, BigQuery, Redis, etc.)
Experience working with real-time systems and low-latency production environments
Background in feature engineering, model optimization, and production monitoring
Experience with LLM/Gen AI techniques, including but not limited to LLM evaluation, alignment, fine-tuning, knowledge distillation, RAG/agentic systems and productionizing LLM-powered products at scale
Advanced degree in Computer Science, Machine Learning, or related quantitative field

Potential Teams

Ads Measurement Modeling
Ads Targeting and Retrieval
Advertiser Optimization
Ads Marketplace Quality
Ads Creative Effectiveness
Ads Foundational Representations
Ads Content Understanding
Ads Ranking
Feed Relevance
Search and Answers Relevance
ML Understanding
Notifications Relevance

Benefits

Comprehensive Healthcare Benefits and Income Replacement Programs
401k with Employer Match
Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
Family Planning Support
Gender-Affirming Care
Mental Health & Coaching Benefits
Flexible Vacation & Paid Volunteer Time Off
Generous Paid Parental Leave

In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.

During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.

Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.

Apply About employer

More about this job

Responsibilities

Design, build, deploy, and operate production machine learning systems for recommendations, search, ranking, advertising, content and user understanding, and AI-powered experiences. Own the ML lifecycle and scalable data and model pipelines, improve system performance and measurable outcomes, and collaborate across product, data science, infrastructure, and engineering teams.

Requirements

Candidates should have 3–5 or more years of experience building and operating production machine learning systems, strong programming and software engineering skills, and knowledge of statistical learning and deep learning. They should have experience with ML frameworks, scalable pipelines and model serving, and translating product or business problems into measurable ML solutions; experience in recommendation, search, advertising, distributed data processing, real-time systems, or LLMs is preferred.

Skills

Machine Learning
Python
Java
Go
PyTorch
TensorFlow
Deep Learning
Recommender Systems
Search and Ranking
Feature Engineering
Model Serving
Distributed Systems
Large-Scale Data Processing
LLM Evaluation and Alignment
Real-Time Systems
Production Monitoring

Benefits

Healthcare Benefits
Income Replacement Programs
401(k) With Employer Match
Global Benefits
Professional Development Support
Caregiving Support
Family Planning Support
Gender-Affirming Care
Mental Health and Coaching Benefits
Flexible Vacation
Paid Volunteer Time Off
Paid Parental Leave

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
Applied Machine Learning
Python
Java
Go
PyTorch
TensorFlow
XGBoost
Random Forests
Regression
Transformers
Convolutional Neural Networks
Graph Neural Networks
Recommender Systems
Search and Ranking
Advertising Systems
Auction Systems
Representation Learning
Multimodal Embeddings
Feature Engineering
Model Serving
Spark
Kafka
Ray
Airflow
BigQuery
Redis
LLM Evaluation
Retrieval-Augmented Generation
Model Monitoring

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