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Added 1 month ago
EG
Senior Water Resources Engineer
Egis Group
Vancouver, BC · Edmonton, Alberta
- $105,000 to $130,000 CAD / year
- Full-time
The Senior Water Resources Engineer position is based in Vancouver, BC, Canada and is responsible for the planning, analysis, and delivery of water resources engineering and hydraulic…
Added 1 month ago
M
AI Engineer, Innovation
MNP
AB
- Full-time
Make an impact with our Technology - Development team as an AI Engineer, Innovation. This diverse team of tech-savvy builders and problem solvers embraces digital transformation, and the…
Added 1 month ago
PI
Staff Data Engineer
PENN Interactive
Canada
- Full-time
As a Staff Data Engineer, you'll partner closely with Data Services, Analytics Engineering, Product, and Business stakeholders to design and deliver scalable, reliable, and high-quality…
Added 1 month ago
R
Senior Data Engineer
RBC
Vancouver, BC
- Full-time
In this role as a Senior Data Engineer, you will be responsible for development deliverables for the Finance Data Platform. The Platform, leverages Airflow and Databricks and serves as the…
Added 1 month ago
Modern Endpoint Management Engineer
Scotiabank
Toronto, ON
We are seeking an experienced Senior Engineer Third-Party Application Patch Management to Lead an enterprise-scale third-party application patch management across complex endpoint…
Added 6 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 1 month ago
C
Generative AI Engineer -Vice President
Citi
Mississauga, ON
- Full-time
We're searching for a highly skilled and experienced senior engineer and Python expert to lead the design and development of the various AI-related technologies as part of the Services Tech…
Added 1 month ago
Senior Software Engineer
BuildOps
Toronto, ON
We’re looking for a Senior Software Engineer to help build and scale the product experiences and systems behind that mission. In this role, you’ll work across frontend applications, backend…
Added 1 month 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 1 month ago
A
Security Engineer (Bangkok Based, Relocation Support)
Agoda
Vancouver, BC
- Full-time
We are looking for a hands on Senior Security Engineer to secure our cloud and platform environments. This role works closely with engineering teams and focuses on building, reviewing, and…
Added 1 month ago
K
Machine Learning Data Engineer
kadence
Montreal, QC
- Full-time
Added 1 month ago
X
Systems Software Engineer
Xanadu
Toronto, ON
- Full-time
As an Embedded Software Engineer (Software for Hardware) at Xanadu, you will join the software-for-hardware team and help build the control and measurement software for our infrastructure…
Added 1 month ago
X
Photonics Control & Test Engineer
Xanadu
Toronto, ON
- Full-time
As a Photonics Control & Test Engineer, you will be responsible for developing the "brain" behind our measurement systems. Your primary focus will be following the entire designing cycle of…
Added 1 month ago
X
AI Specialist - AI For Research
Xanadu
Toronto, ON
- Full-time
At Xanadu, we primarily work with GitHub, Python, AWS, Postgres, Docker, Terraform, and Claude. Proficiency in these technologies is essential.
Added 1 month ago
M
Staff Data Engineer
MaintainX
Montreal, QC
- Full-time
We are seeking a Staff Data Engineer to join our growing team. Our data platform spans a wide surface area: infrastructure, CDC streaming, Databricks operations and runtime, data pipelines,…
Added 1 month ago
M
Staff Data Engineer
MaintainX
Toronto, ON
- Full-time
We are seeking a Staff Data Engineer to join our growing team. Our data platform spans a wide surface area: infrastructure, CDC streaming, Databricks operations and runtime, data pipelines,…
Added 1 month ago
HC
Co-op Engineer - openJiuwen AI Agent Platform
Huawei Canada
Markham, ON
- Internship
Huawei Canada has an immediate co-op opening for an Engineer.
Added 1 month ago
MR
Senior Azure Cloud Engineer
Motion Recruitment
Toronto, ON
- $78 to $92 USD / hour
- Contract
…Azure Databricks, Terraform, CI/CD tooling, PowerShell, and Python while helping establish cloud platform standards and engineering…
Added 1 month ago
CI
Lead Software Engineer, AI & Emerging Tech
CPP Investments | Investissements RPC
Toronto, ON
- Full-time
…controlled enterprise environment. The ideal candidate is a senior engineer passionate about coding, platform enablement with deep expertise in python, emerging tech, cloud infrastructure,…
Added 1 month 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
…financial future for the healthcare community. As a Lead Agentic AI Engineer, you will work directly with engineers, architects, security, governance, and business partners to find…
Added 1 month ago
SE
Senior DevOps Engineer
Samsung Electronics
Vancouver, BC
- Full-time
We are looking for a Senior DevOps Engineer to join our Vancouver team.
Added 1 month ago
Senior Tailings Geotechnical Engineer
Hatch
Calgary, AB
…Hatch is seeking to hire a Senior level, Geotechnical Tailings Engineer to become a practitioner in the field and part of our expanding team in Calgary, Canada. This role would suit a…
Added 1 month ago
SI
SIEM / SOAR Engineer
SIA Innovations Inc.
Montreal, QC
- Contract
We are seeking an experienced Cortex XSIAM Engineer to join our cybersecurity team. This role is pivotal in deploying, managing, and optimizing our Cortex XSIAM environment to enhance our…
Added 1 month 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 1 month ago
P
Senior Data Engineer - Snowflake - Contract
Propel
Canada
- Contract
We are looking for a Snowflake Data Engineer to help build and maintain their cloud data warehouse and pipelines. This is a hands on role that involves taking ownership of moderately…

kadence

Machine Learning Data Engineer

Montreal, QC, Canada

Full-time

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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.

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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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