Jobs in Canada

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Added 2 months ago
RE
Gameplay Data Science Engineer (Apex Legends)
Respawn Entertainment
Vancouver, BC · Greater Vancouver Metropolitan Area
- Full-time
As a Gameplay & Data Science Engineer, you will drive the Research & Development of advanced bot behaviors and AI frameworks to enhance the Apex Legends experience. You will work at the…
Added 2 months ago
O
Senior Data Engineer, Data Integration & Performance Platform (12-Month Contract)
OMERS
Toronto, ON · Head Office Toronto
- Full-time
Custom Solutions. Engineer data services and APIs that close gaps between Aladdin native functionality and what our investment, risk, performance, and finance teams require.
Added 2 months ago
O
Data Engineer, Data Integration & Performance Platform (12-Month Contract)
OMERS
Toronto, ON · Head Office Toronto
- Full-time
…simply complete tickets. We are looking for a future senior engineer - someone who wants to learn how enterprise data platforms are built, operated, and scaled, and who is willing to do the…
Added 2 months ago
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Automation and Test Engineer - Photonics
Lumentum
Ottawa, ON · Canada - Ottawa (Bill Leathem)
- Full-time
We’re looking for an engineer to build the automation and software our photonics manufacturing runs on: process automation, test automation, machine vision, data acquisition and analytics,…
Added 2 months ago
GP
Senior Software Engineer
Generac Power Systems
Toronto, ON · Canada - Toronto
- Full-time
We also use Java, Python, and JavaScript, and value choosing the right tool for the job.
Added 2 months ago
C
Senior Software Engineer - AI / ML
CyberCoders
Canada
- Full-time
We're looking for a Senior AI/ML Engineer to help expand our next-generation document intelligence system. Working in close collaboration with our Data Science team, you'll bring deep…
Added 2 months ago
KC
Hardware Test Engineer - Contract 3+ Months
Kepler Communications
Toronto, ON
- Full-time
- Contract
We invest heavily to deliver the best products to our customers, and so we’re on the hunt for a Hardware Test Engineer who will architect and design test infrastructure to ensure…
Added 6 months ago
E
Digital - ASIC Design Automation Engineer
Eliyan
Toronto, Ontario
- Full-time
Strong Python, plus Tcl, shell scripting, Git, Linux, and Makefiles. You are comfortable owning a codebase, not only writing scripts.
Added 2 months ago
A
Senior Full Stack Engineer (Application + Data)
Article
Vancouver, BC
- $165,000 to $175,000 CAD / year
- Full-time
We are a hybrid team - you'll be in the office 3 days per week
Added 2 months ago
KD
AI/ML Engineer
Katalyst Data Management
Calgary, AB
- Full-time
Join the dynamic and collaborative team at Katalyst Data Management (KDM)! KDM is seeking an AI/ML Engineer to support the operation, optimization, and reliability of the infrastructure…
Added 2 months ago
Senior AI/ML Engineer
Katalyst Data Management
Calgary, AB
Join the dynamic and collaborative team at Katalyst Data Management (KDM)! KDM is seeking a Senior AI/ML Engineer to help design, build, and operate the infrastructure that powers our next…
Added 2 months ago
M
Senior Security Engineer, Device/Hardware
Motive
Canada
- Full-time
5+ years of hands on development experience in the programming languages like python and C/C++
Added 2 months ago
M
Senior Security Engineer, Device/Hardware
Motive
Canada
- Full-time
5+ years of hands on development experience in the programming languages like python and C/C++
Added 2 months ago
ZT
Software Engineer, Professional Senior (Android + NFC/RFID +AI )
Zebra Technologies
Mississauga, ON
- Full-time
The Engineering Customer Response Team (ECRT) is seeking a Senior Software Engineer to provide world-class technical support to global enterprise customers for the Android Operating System,…
Added 2 months ago
P
Senior Full Stack Engineer
Procurify
Remote, Canada
- $122,000 to $152,000 CAD / year
- Full-time
- Remote
…services to responsive, user-friendly frontend components - using Python/Django and…
Added 2 months ago
I
Technology Lead-Pivotal Cloud Foundry (PCF)
Infosys
Calgary, AB
- Full-time
…Linux system administration skills (RHEL, Ubuntu, or similar).Hands-on experience with RabbitMQ (RMQ) setup, configuration, and administration. Experience with monitoring tools such as…
Added 2 months ago
AG
Senior AI Developer / Développeur(se) IA senior
Aduna Global
Montreal, QC
- Full-time
…engineers and you report to the Head of Engineering. This is a hands-on role. You design, build and run AI systems in production, and you shape how AI fits into the…
Added 7 months ago
BT
Software Engineer I
Beanfield Technologies Inc.
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
We are seeking a motivated Software Engineer to join our technology team. This role focuses on designing, developing, and enhancing backend systems, APIs, and data processing tools using…
Added 2 months ago
X
Photonics Engineer - Systems Integration
Xanadu
Toronto, ON
- Full-time
We are looking for a hands-on, analytical, and driven Photonics Engineer to join our hardware team and accelerate the development of our Fault-Tolerant Quantum Computing (FTQC) systems. If…
Added 2 months ago
K
Machine Learning Data Engineer
kadence
Montreal, QC
- Full-time
Hands-on experience with distributed data-processing technologies such as: Spark, Ray, Flink
Added 2 months ago
MR
Senior Azure Cloud Engineer
Motion Recruitment
Toronto, ON
- $78 to $92 CAD / hour
- Contract
…Azure Databricks, Terraform, CI/CD tooling, PowerShell, and Python while helping establish cloud platform standards and engineering…
Added 2 months ago
CI
Lead Software Engineer, AI & Emerging Tech
CPP Investments | Investissements RPC
Toronto, ON
- Full-time
As a Lead Engineer for AI & Emerging Tech, you will drive AI platform enablement across the enterprise, you will drive the design, development, and deployment of next-generation tech and…
Added 2 months ago
H(
Lead Agentic AI Engineer
HOOPP (Healthcare of Ontario Pension Plan)
Toronto, ON · CA ON Toronto
- $98,000 to $138,000 CAD / year
- Full-time
Strong engineering expertise, including hands-on experience with Python, C#, JavaScript, TypeScript, or similar languages, and building solutions across cloud platforms such as Azure and…
Added 2 months ago
P
Principal AI Engineer
PointClickCare
Mississauga, ON
- $191,700 to $213,000 CAD / year
- Full-time
PointClickCare is searching for a Principal AI Engineer who will lead and design AI systems across multiple SaaS solutions following our AI Design Patterns, defining technical standards and…
Added 2 months ago
QA Engineer III
Zafin
Toronto, ON
The QA Engineer III will be responsible for leading and executing functional quality assurance activities for complex banking and financial applications. The role requires strong hands-on…

kadence

Machine Learning Data Engineer

Montreal, QC, Canada

Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Job type: Full-time
Experience: 5+ years of experience across machine learning engineering, data processing, NLP, data infrastructure or related areas.
Posting language: English
Posted: Sep 2, 2026

Original job description

Senior Machine Learning Data Engineer

Location: Canada

The Opportunity

This is an opportunity to work alongside a highly accomplished AI research team tackling fundamental problems in advanced machine learning.

Rather than maintaining established pipelines, you’ll be helping develop new approaches to training-data engineering and curation where established playbooks often do not yet exist.

The organization is building a substantial technical team in Montreal, and we are hiring multiple people across this area.

If you’ve worked on LLM training data, large-scale NLP pipelines, foundation-model infrastructure or web-scale data processing, I’d be interested in speaking with you.

We’re working with an ambitious AI research organization building next-generation machine learning systems and are looking for multiple Senior Machine Learning Data Engineers to join its growing technical team.

This role sits at the intersection of data engineering, machine learning, NLP, and large-scale training data curation.

You’ll be responsible for building and scaling the infrastructure that transforms raw, web-scale data into high-quality datasets used to train advanced AI models.

The core challenge is engineering data quality at enormous scale: developing filtering systems, model-based quality scoring, dataset transformations, contamination detection, and tooling that allows researchers to understand and work with training corpora effectively.

What You’ll Work On

Design, build and scale pipelines that transform raw web-scale data into high-quality datasets for training large machine learning models.
Process extremely large unstructured text corpora, including datasets at trillion-token scale.
Build sophisticated data-processing systems covering: Deduplication, Model-based quality scoring, Heuristic filtering, Toxicity and content-safety filtering, PII detection and removal, Metadata extraction, Dataset transformations, Versioning and provenance tracking
Develop automated data-quality systems using a combination of heuristics, ML classifiers, LLM-based evaluators and human-in-the-loop workflows.
Build monitoring and guardrails to identify data-quality regressions before they impact downstream model training.
Work closely with AI researchers to understand evolving training-data requirements and identify gaps within existing datasets.
Design robust evaluation contamination and data-leakage detection systems.
Build internal tools that allow researchers to easily explore, query and understand large datasets.
Optimize large-scale distributed processing systems for throughput, reliability and infrastructure cost.

What We’re Looking For

5+ years of experience across machine learning engineering, data processing, NLP, data infrastructure or related areas.
Experience working with very large unstructured text datasets, ideally at web or foundation-model scale.
Strong production-level Python.
Hands-on experience with distributed data-processing technologies such as: Spark, Ray, Flink
Experience designing and optimizing high-throughput distributed pipelines.
Experience with areas such as: PII scrubbing, Content-safety filtering, Dataset quality, Evaluation contamination, Training-data governance
Experience with workflow orchestration frameworks such as Airflow, Prefect or Dagster.
Ability to work closely with both research and engineering teams and translate research requirements into scalable infrastructure.

Particularly Relevant Experience

We’d be especially interested in people who have worked on:

Pretraining or post-training data pipelines for LLMs
Foundation-model training infrastructure
Web-scale text processing
Common Crawl or comparable large-scale datasets
Dataset curation for large language models
LLM-based data-quality evaluation
ML classifiers for filtering or scoring training data
Large-scale data acquisition
Dataset deduplication and contamination detection
Distributed ML/data infrastructure

Experience with vLLM, SGLang, Docker, Kubernetes, infrastructure-as-code, experiment tracking or open-source NLP/data tooling would also be valuable.

Apply on LinkedIn About employer

More about this job

Responsibilities

Design and scale infrastructure to transform raw, web-scale unstructured text into high-quality datasets for training advanced AI models. Develop automated data-quality systems, filtering mechanisms, and internal tools to support AI researchers.

Requirements

Requires 5+ years of experience in machine learning engineering or data infrastructure with strong production-level Python skills. Must have hands-on experience with distributed processing technologies like Spark or Ray and working with large-scale unstructured text datasets.

Skills

Python
Spark
Ray
Flink
NLP
LLM Training Data
Distributed Data Processing
Airflow
Prefect
Dagster
Data Curation
Kubernetes
Docker
vLLM
SGLang
Data Pipeline Design

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
Data Engineering
NLP
LLM
Foundation Models
Web-scale Data
Deduplication
PII Detection
Content-safety Filtering
Common Crawl
Data Leakage Detection
Distributed Systems
Infrastructure-as-code
Experiment Tracking
Data Governance
Trillion-token Scale
Heuristic Filtering
Model-based Quality Scoring
vLLM
SGLang
Docker
Kubernetes
Airflow
Prefect
Dagster
Spark
Ray
Flink
Python
Data Pipelines

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Work requirements

Jobs in Canada