Jobs in Canada

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Added 4 months ago
EV
Specialist Maintenance
Elk Valley Resources
Sparwood, British Columbia
- $108,000 to $133,000 CAD / year
Evaluate and improve systems, processes, and tools to strengthen maintenance performance
Added 2 months ago
FEA Engineer
Ametek, Inc.
Levis, QC
What we offer at Creaform Engineering for this FEA Engineer role in Lévis:
Added 4 months ago
SD
Senior Business Analyst
Symbiotic Digital
Toronto, Ontario · Downtown Toronto (CN Tower / King and Spadina / Railway Lands / Harbourfront West / Bathurst Quay / South Niagara / YTZ), Ontario
- Contract
engagement across complex enterprise systems.
Added 4 months ago
S
Gestionnaire principal Chaîne d'approvisionnement et contrôle des matériaux / Sr. Manager Supply Chain and Material Control
Smardt
Dorval, Quebec
- Full-time
Added 4 months ago
AD
Senior Account Manager
Active Dynamics
Toronto, Ontario
- $100,000 to $120,000 CAD / year
- Full-time
Must have the ability to interact with various levels of management and staff internally and within customer organizations
Added 4 months ago
L
Full Stack Engineer (Front End Leaning)
Lutra
Toronto, Ontario
- Full-time
…and get value from the product. This role sits on the Growth engineering team, one of two engineering teams alongside Payments, and owns the surfaces where users first meet and engage with…
Added 4 months ago
L
Backend Engineer
Lutra
Toronto, Ontario
- Full-time
…financial infrastructure that requires robust, secure, and scalable systems. If you’re interested in designing and building financial platforms that handle millions of dollars in daily…
Added 2 months ago
EC
Spécialiste en développement de logiciel / Software Development Specialist
Eaton Corporation
Brossard, QC
- Full-time
Eaton's Electrical Sector Energy Control Systems (ECS) Center of Excellence (CoE) is currently seeking a motivated Software Development Specialist to join its global, multidisciplinary team…
Added 4 months ago
R
Agent Product Operations
Runbook
Canada
- Full-time
…spreadsheets, phone calls, and clicking through complex software systems. We're building a product that replaces that layer with AI agents that actually do the work end-to-end: they run…
Added 2 months ago
Warehouse Technical Inspector (Permanent)
Babcock
Halifax, NS
Knowledge in material management for major equipment and systems in the Department of National Defence with DRMIS experience. This would be advantageous.
Added 3 months ago
KI
Systems Performance Engineering Associate I
Konnexis Incorporated
Ottawa, ON · Stittsville, Ontario
- Full-time
This role requires in-person or onsite work 5 days per week at our Stittsville, Ontario location
Added 4 months ago
TA
Technical Standards and Training Instructor
Top Aces
Saguenay, Quebec
- Full-time
Contribute as a resource person and mentor for newly hired technicians for policies, procedures and the training of technical personnel in the use of company software and systems.
Added 4 months ago
A
Staff Software Engineer, Shared Services ⭐
Achievers
Toronto, ON
- Full-time
Join our Framework team: the engineering foundation that makes Achievers scale.
Added 3 months ago
A
Market Development Manager, System 1738
Aliaxis
Oakville, Manitoba
- Full-time
IPEX is one of the North American leading providers of advanced plastic piping systems. Our mission is to shape a better tomorrow by connecting people with water and energy.
Added 3 months ago
IG
Market Development Manager, System 1738
IPEX Group
Oakville, Manitoba
- Full-time
IPEX is one of the North American leading providers of advanced plastic piping systems. Our mission is to shape a better tomorrow by connecting people with water and energy.
Added 4 months ago
Equipment Maintainer
Alstom
Etobicoke, Ontario
…high-speed trains, metros, monorail, and trams to integrated systems, customised services, infrastructure, signalling and digital mobility solutions. Joining us means joining a caring,…
Added 4 months ago
Software Development Engineer II, AWS IAM Identity Center
Amazon
Vancouver, British Columbia
…access management and sign on, cryptography, console, builder & developer tools, and even projects like automating all of our contractual billing systems, AWS Platform is always innovating…
Added 2 months ago
E
Développeur(-euse) principal(e) de logiciels (contenu) /Principal Software Development Engineer
Expedia
Montreal, QC · Canada - Quebec - Montreal
- Full-time
Added 4 months ago
MA
Supervisor, Production and Maintenance
Messer Americas
Trail, British Columbia
- Full-time
Manage site compliance to management systems; Serve as Safety, Health, Environmental and Emergency Coordinator, QC Designee, Document Manager, and Corrective and Preventative Action…
Added 2 months ago
Analyst, Project Controls
Aecon
Toronto, ON
Participate in developing, establishing, and maintaining the company’s project cost control systems.
Added 4 months ago
RB
Senior Civil Engineer - Building Restoration
R.J. Burnside & Associates Limited
Barrie, Ontario · Collingwood, Ontario · Guelph, Ontario · Hamilton, Ontario · Newmarket, Ontario · North Huron, Ontario · Orangeville, Ontario · Pickering, Ontario · Woodstock, Ontario · Ontario
- Full-time
Bachelor’s degree in civil engineering or applied science (or related discipline).
Added 4 months ago
PI
Sr. Building Science Technologist
Pinchin in Canada
Kelowna, British Columbia
- Full-time
Pinchin makes buildings and environments better. We are a multidisciplinary engineering and consulting firm with offices across North America. Our teams bring together expertise in…
Added 4 months ago
BP
Risk Specialist/Risk Lead (Contract) Talent Pool
Bruce Power
Kincardine, Ontario · Bruce Power
- Full-time
…technical subject matter expert for Bruce Power’s risk management systems and challenges project assumptions. It also supports the shift to analytics-driven risk management by delivering…
Added 2 months ago
Senior ML Data Processing Developer
LawZero
Montreal, QC
We are seeking a Senior ML Data Processing Developer to participate in the development, curation, and scaling of our core data asset pipeline. Sitting at the intersection of data…
Added 4 months ago
HT
Power System Analyst
Huawei Technologies Canada Co., Ltd.
Montreal, Quebec
- Contract
…simulation technologies, microgrid energy management, control systems, and other smart grid technologies. We apply cutting-edge technologies to the digital power industry. The lab has…

LawZero

Senior ML Data Processing Developer

Montreal, QC, Canada

Apply on job-boards.greenhouse.io About employer

Applications open in a new tab.

Job details

Posting language: English
Posted: Sep 9, 2026

Original job description

We are seeking a Senior ML Data Processing Developer to participate in the development, curation, and scaling of our core data asset pipeline. Sitting at the intersection of data engineering, data curation, and machine learning, you will own the end-to-end pipeline that transforms raw web-scale data into high-signal datasets used to train the Scientist AI.

In this role, you will not just manage data; you will engineer its quality. You will design algorithmic filtering, build model-based scoring mechanics, and ensure rigorous benchmark integrity to power the next generation of AI. And as our models push beyond established paradigms, you will design and implement novel data transformations that don't yet have playbooks, working at the frontier of what training data can be.

We are hiring multiple people for this role, and responsibilities may be distributed across the team based on individual experience, skills, and interests.

Key Responsibilities

Partner with the Research team to define, build, automate, scale, and manage data pipelines that transform raw web-scale data into training datasets for the Scientist AI.
Build and maintain data processing pipelines, including deduplication, model-based quality scoring, heuristic filtering, toxicity removal, PII scrubbing, metadata extraction, and proprietary data transformations, with full dataset versioning and provenance tracking, optimizing for throughput and cost at scale.
Ensure all ingested data meets compliance requirements, internal Data Governance policies, and legal obligations.
Develop and refine the scoring and filtering toolchain: heuristics, LLM-as-a-judge evaluators, ML classifiers, metadata extraction modules, and human-in-the-loop review workflows required for data processing and quality assurance.
Instrument data processing pipelines with data-quality monitoring, guardrails, and alerting to catch regressions before they propagate downstream.
Collaborate with the Research team and other teams to understand evolving data requirements, then identify and acquire large-scale text corpora that meet those requirements. This includes conducting systematic coverage analyses to identify gaps in the corpus and develop targeted acquisition strategies to address them, and working with the Legal & Governance Team to license new data sources.
Design and maintain strict leakage detection mechanisms to guard against evaluation contamination across all stages of the data processing pipeline.
Build internal tooling and interfaces that let researchers explore, query, and understand available datasets with minimal friction.

Skills and Qualifications

Degree in computer science, software engineering, or a related field.
Proven track record of handling massive unstructured text datasets (trillion-token scale), with 5+ years of experience in data processing, machine learning engineering or Natural Language Processing (NLP).
Hands-on experience with distributed processing frameworks (e.g., Spark, Ray, Flink), designing and optimizing high-throughput pipelines.
Experience with data privacy implementation (PII scrubbing), content-safety filtering (toxicity, bias), and evaluation-contamination prevention.
Demonstrated ability to work across Research, Engineering, and/or Legal/Governance teams, translating varied requirements into concrete pipeline work.
Strong Python proficiency, including experience writing production-grade data-processing code.
Experience with pipeline orchestration frameworks (e.g., Airflow, Prefect, Dagster).

Nice to have

Experience training, fine-tuning, or deploying ML models for data-quality tasks (classifiers, LLM-based evaluators) and familiarity with LLM inference optimization (e.g. vLLM, SGLang).
Familiarity with containerized deployment (Docker, Kubernetes) and infrastructure-as-code practices.
Familiarity with ML experiment tracking tools (e.g. Weights and Biases).
Experience with data licensing workflows or web-scale data acquisition.
Contributions to open-source data processing or NLP tooling.

What we offer

The chance to contribute meaningfully to a globally critical initiative
Comprehensive health benefits (including mental health and wellness management account)
20 days of vacation per year upon start
Employer contribution of 4% to your retirement savings, with no required employee match
Additional compensation totaling 8% of your salary to apply towards additional retirement savings or bonuses (independent of group and individual performance)
A team of passionate world-class experts in their field
A collaborative and inclusive work environment in our vibrant office space in the heart of Little Italy, in the trendy Mile-Ex district, close to public transportation

About LawZero

LawZero is a non-profit organization committed to advancing research and creating technical solutions that enable safe-by-design AI systems. Its scientific direction is based on new research and methods proposed by Professor Yoshua Bengio, the most cited AI researcher in the world. Based in Montreal, LawZero’s research aims to build non-agentic AI that learns primarily to understand the world rather than to act in it, giving truthful answers to questions based on transparent and externalized probabilistic reasoning. Such AI systems could be used to accelerate scientific discovery, to provide oversight for agentic AI systems, and to advance the understanding of AI risks and how to avoid them. LawZero believes that AI should be cultivated as a global public good - developed and used safely towards human flourishing. For more information, visit www.lawzero.org

You belong here

At LawZero, diversity is important to us. We value a work environment that is fair, open and respectful of differences. We welcome applications from highly qualified individuals interested in working towards our mission in a respectful, inclusive and collaborative setting.

Your personal information will be collected and processed by LawZero to evaluate your application for employment in compliance with our Privacy Policy. Under privacy laws in force in your country of residence, you may have several privacy rights, such as to request access to your personal information or to request that your personal information be rectified or erased. Details on how you can exercise your rights can be found in our Privacy Policy.

Apply on job-boards.greenhouse.io About employer

More about this job

Responsibilities

Develop and scale end-to-end data pipelines to transform raw web-scale data into high-quality datasets for training the Scientist AI. This includes implementing algorithmic filtering, quality scoring, and ensuring rigorous benchmark integrity and data provenance.

Requirements

Requires a degree in computer science or a related field and 5+ years of experience in data processing or NLP with massive unstructured datasets. Proficiency in Python and distributed processing frameworks like Spark or Ray is essential.

Skills

Python
Spark
Ray
Flink
Airflow
Prefect
Dagster
Natural Language Processing
Distributed Processing
Data Pipeline Engineering
ML Engineering
PII Scrubbing
Data Governance
Docker
Kubernetes
LLM Evaluation

Benefits

Comprehensive Health Benefits
Mental Health And Wellness Management Account
20 Days Of Vacation Per Year
Additional Compensation Of 8% For Retirement Savings Or Bonuses

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
NLP
Data Engineering
LLM
vLLM
SGLang
Weights And Biases
Data Curation
Toxicity Removal
PII Scrubbing
Data Leakage Detection
Distributed Computing
Web-Scale Data
Data Versioning
Provenance Tracking
Heuristic Filtering
ML Classifiers
Containerization
Infrastructure-as-Code
Data Licensing

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Jobs in Canada