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Added 10 days ago
Quantum Hardware Scientist
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Waterloo, ON
$100,000 to $125,000 CAD / year
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Added 10 days ago
Staff Data Scientist
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Added 10 days ago
Data Scientist
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Montreal, QC
Full-time
We are looking for a Data Scientist to join a dynamic technology team supporting data-driven solutions within a global financial services environment. In this role, you will work with large…
Added 10 days ago
Data Scientist II
Insurance Corporation of British Columbia
North Vancouver, BC
Added 4 months ago
Senior Machine Learning Engineer
Loblaw Digital
Toronto, Ontario
Full-time
Added 4 months ago
Machine Learning Engineer, Detection (TOR)
Doppel
Toronto, Ontario
Full-time
Added 4 months ago
Applied Scientist AI/ML
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Toronto, Ontario
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Intermediate Environmental Engineer or Scientist
WSP in Canada
St. Catharines, Ontario
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Added 4 months ago
Intermediate Environmental Engineer or Scientist
WSP in Canada
St. Catharines, Ontario
Full-time
Added 4 months ago
Machine Learning Engineer, Underwriting
Bree
Remote, Canada
$130,000 to $230,000 USD / year
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Added 2 months ago
Data Scientist or Decision Scientist
Venterra Realty
Richmond Hill, ON
Full-time
Added 2 months ago
Nursing Simulation Education Specialist
Robert Morris University
Montreal, Quebec
The simulation education specialist is a budding nurse scientist, naturally curious and acutely aware of the nuances involved in human interactions such as; body language, voice tone, and…
Added 2 months ago
Data Scientist
Larus Technologies
Ottawa, Ontario
Full-time
Added 1 month ago
Junior Environmental Scientist
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Ottawa, ON
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Added 10 days ago
Applied Scientist, Process Control
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Kamloops, BC
Full-time
Role Description The Applied Scientist, Process Control is a full-time, on-site role based in Kamloops, BC. This role is responsible for designing, implementing, and optimizing process…
Added 10 days ago
Experienced Environmental Scientist
WSP in Canada
Victoria, BC
Full-time
Added 10 days ago
Data Architect
MPA Recruitment
Toronto, ON · Greater Toronto Area, Canada
$170,000 to $200,000 CAD / year
Full-time
As a Data Solution Architect (Manager), you’ll be responsible for a multi- skilled agile team to design and deliver contemporary data solutions. You will be a quality orientated pragmatist,…
Added 10 days ago
Big Data Developer
Cognizant
Toronto, ON
$53,000 to $108,000 CAD / year
Full-time
As a Big Data Engineer, you will make an impact by designing, developing, and optimizing scalable data platforms, ETL processes, and data pipelines that enable business-critical analytics…
Added 10 days ago
Experienced Environmental Scientist
WSP in Canada
Victoria, BC
Full-time
Added 9 days ago
Environmental Engineer/Scientist
GHD Group Pty Ltd
Peterborough, ON
Added 4 months ago
Research Assistant 2, Innate Lymphoid Cell and NK Cell Engineering, Crome Lab, Terry Fox Lab - BC Cancer Vancouver
Provincial Health Services Authority
Vancouver, British Columbia
Full-time
Added 4 months ago
Postdoctoral Fellow - Innate Lymphoid Cells and Spatial Genomics in Type 1 Diabetes, Crome Lab, Terry Fox Laboratory - BC Cancer Vancouver
Provincial Health Services Authority
Vancouver, British Columbia
Full-time
Added 4 months ago
Machine Learning Engineer
FactualIQ
Remote, Canada
$160,000 to $190,000 CAD / year
Full-time · Remote
…You'll own the complete development lifecycle, from synthetic data generation and model…
Added 2 months ago
Lead Data Scientist
Sixone
Burnaby, British Columbia
Full-time
Added 10 days ago
Analog/Mixed Signal Architect
Lightmatter
Toronto, ON
Lightmatter is leading the revolution in AI data center infrastructure, enabling the next giant leaps in human progress. The company invented the world’s first 3D-stacked photonics engine,…

Doppel

Machine Learning Engineer, Detection (TOR)

Toronto, ON, Canada

Job type: Full-time
Posting language: English
Posted: May 12, 2026

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Original job description

Why Join Doppel

Doppel is built to outsmart one of the great threats AI presents: mass-manufactured social engineering. Countless scams, deepfakes, and other social engineering attacks are surging across every digital channel: websites, social media, ads, encrypted messaging apps, mobile, and more. Our mission is simple but bold: make the internet a safer place by outsmarting the world’s fastest-evolving digital threats.

Backed by a16z and Bessemer and trusted by some of the world’s most recognized brands (OpenAI, United Airlines, Coinbase, etc.), Doppel is growing fast. If you’re driven to solve real-world problems with bold technology, we’d love to meet you.

What We're Building

We're building the AI-native social engineering defense platform.

This means we're designing scalable systems that monitor billions of domains, social media accounts, apps, dark web forums, etc., and leverage AI agents to identify and neutralize digital threats.

What We're Looking For

We’re looking for a machine learning engineer to help build and scale the models and systems that power Doppel’s detection systems. Check out our blog post on how we set up our ML platform. As an MLE at Doppel, you will

Design, train, and deploy models for both batch and real-time inference that identify malicious or infringing content across diverse data sources.
Partner closely with the Detection and Infrastructure teams to ensure our ML systems scale with the volume of web data we ingest
Work on problems that range from NLP and embeddings to similarity search, classification, and anomaly detection
Collaborate directly with customers and internal stakeholders to translate real-world threats into production ML systems

You May Be a Fit If You

Have experience building and deploying ML systems in production environments
Are comfortable working with large-scale datasets and distributed data processing frameworks
Understand the trade-offs between research-quality models and production-ready systems
Are excited about solving real-world problems where the adversary is constantly evolving

What We Offer

🚀 A mission-driven culture with low ego, high ownership, deep customer obsession, and exceptional talent density

🍽️ Free lunch and dinner in the office

🌴 Flexible PTO

✈️ Quarterly team offsites

Join Doppel

Doppel is the first platform built to dismantle digital deception at scale. We scan over 150 billion entities daily and deploy continuously adaptive AI SOC agents, paired with expert human analysts, to uncover and disrupt the infrastructure behind phishing, impersonation, and online fraud before attacks can spread. Our Threat Grid turns every customer signal into shared intelligence, making each disruption smarter, faster, and more effective.

We’re not just another cybersecurity company. We’re defining the future of social engineering defense, where trust is protected, and deception becomes unprofitable. Backed by top-tier investors and trusted by some of the world’s most recognized brands, Doppel is growing fast. If you’re driven to solve real-world problems with bold technology, we’d love to meet you.

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More about this job

Responsibilities

As a Machine Learning Engineer at Doppel, you will design, train, and deploy models for detecting malicious content across various data sources. You will collaborate with teams to ensure the scalability of ML systems and translate real-world threats into production-ready solutions.

Requirements

Candidates should have experience building and deploying ML systems in production environments and be comfortable working with large-scale datasets. A strong understanding of the trade-offs between research-quality models and production-ready systems is essential.

Skills

Machine Learning
NLP
Data Processing
Model Deployment
Anomaly Detection
Classification
Similarity Search
Distributed Systems

Benefits

Free Lunch
Free Dinner
Flexible PTO
Quarterly Team Offsites

Visa sponsorship

Not detected in the job text

Keywords

Machine Learning
Detection
AI
Social Engineering
Cybersecurity
NLP
Data Processing
Model Deployment
Anomaly Detection
Classification
Similarity Search
Distributed Systems
Real-time Inference
Batch Inference
Threat Intelligence
Digital Threats

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