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Added 3 months ago
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Senior Mechanical Engineer
Sargent & Lundy
Toronto, ON · North York, ON
- Full-time
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 3 months ago
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Senior Electrical Engineer
Sargent & Lundy
Toronto, ON · North York, ON
- Full-time
In this role, you will provide development support, conceptual design and owner’s engineer services to clients including performing technical evaluations of electric power generation…
Added 1 month ago
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Analyste BI senior
AtkinsRéalis
Montreal, QC
- Full-time
…technology to transform the world's'infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 1 month ago
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Sr. Staff Developer, Architecture
iQmetrix
Vancouver, BC
- Full-time
We are hiring a Principal Engineer, Architecture. This is a senior individual contributor role for someone who is still happiest with their hands on the keyboard, and who thinks in systems…
Added 1 month ago
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Founding AI/ML Engineer
Taskclan
Remote, Canada
- Full-time
- Remote
Taskclan Intelligence develops our T1 model family: T1 Core, T1 Flow and T1 Max. These models will power capabilities across Taskclan Cloud, T1 Studio, our enterprise platform and products…
Added 1 month ago
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Controls Engineer Midnights
Voltava
Windsor, ON · Greater Windsor Metropolitan Area
- Full-time
At Voltava, people power everything we do. We are a premier global manufacturing and assembly partner formed through the combination of Detroit Manufacturing Systems, Android Industries,…
Added 1 month ago
Land Development Project Engineer/Manager
WSP
Calgary, AB
…advisory and science-based expertise, our global minds unite to power local solutions. We are pathfinders and impact makers. We are Visioneers. We are…
Added 5 months ago
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Corporate Reliability Engineering Co-Op
IKO North America
Brampton, Ontario
- Full-time
Assist Corporate Reliability Engineers in developing and implementing the following Systems/Processes for IKO Plants in NA and Europe
Added 5 months ago
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Senior Embedded Software Designer
Lumentum
Ottawa, Ontario
- Full-time
Powering high-speed data transmission for cloud data centers, AI/ML, enterprise systems, and communication services. Think streaming, gaming, and next-gen tech - we make it happen.
Added 5 months ago
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Senior FPGA Design/Verification Engineer
Lumentum
Ottawa, Ontario
- Full-time
Title: Senior FPGA Design/Verification Engineer
Added 5 months ago
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Electrical Engineer/FPGA Designer
Lumentum
Ottawa, Ontario
- Full-time
Lumentum is seeking a talented and motivated Electrical Engineer/FPGA Designer to join our cutting-edge development team in Ottawa. The successful candidate will play a crucial role in…
Added 5 months ago
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Senior Engineer - Mechanical and Nuclear
Kinectrics
Toronto, Ontario
- Contract
Kinectrics has a growing portfolio of services supporting the development and deployment of new nuclear power plants and lead the life extension projects of existing nuclear power plants in…
Added 5 months ago
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Solutions Engineer - Sydney, Australia
LaunchDarkly
Ottawa, Ontario
- Full-time
We are looking for a talented Solutions Engineer at LaunchDarkly. You will be a trusted technical advisor to our largest and most important Mid-Market and Corporate prospects and customers…
Added 5 months ago
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Machine Learning Engineer, Detection (TOR)
Doppel
Toronto, Ontario
- Full-time
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.…
Added 5 months ago
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Traction Power Systems Coordinator
Colas Canada Inc.
Edmonton, Alberta
- Contract
The Traction Power Systems Construction Coordinator is responsible for overseeing and coordinating all site construction activities related to the Light Rail Transit (LRT) Traction Power…
Added 5 months ago
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Machine Learning Engineer, Underwriting
Bree
Remote, Canada
- $130,000 to $230,000 USD / year
- Full-time
- Remote
We’re looking for a Machine Learning Engineer to build and scale high-impact, world-class ML systems. You’re passionate about deploying AI solutions, optimizing performance, and driving…
Added 3 months ago
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AI Enablement Specialist
Armstrong Collective
Vancouver, British Columbia
- Full-time
Degree or diploma in Computer Science, Information Technology, Business Systems, or equivalent experience.
Added 3 months ago
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Senior Site Reliability Engineer, DevEx
Chainlink Labs
Remote, Canada
- $90,000 to $125,000 USD / year
- Full-time
- Remote
…Kubernetes-based control-plane components and automation that power our CI/CD platform, developer environments, and build systems - not the manual operation of them. By codifying platform…
Added 3 months ago
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Senior ETCS Signalling Engineer
AECOM
Markham, Ontario · Mississauga, Ontario
- $150,000 to $200,000 CAD / year
- Full-time
Interface with other technical disciplines such as Communication Systems, Power Supply & Distribution, Electrical, Mechanical, Structural, Architectural, Trackwork, Civil and others;…
Added 3 months ago
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Technical Manager - MONARK Licensing
AtkinsRéalis
Mississauga, Ontario · Pickering, Ontario
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 3 months ago
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Technical Manager - MONARK DSA
AtkinsRéalis
Mississauga, Ontario · Pickering, Ontario
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 3 months ago
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Systems Engineer, Patch Management (12 month contract)
TMX Group
Toronto, Ontario
- $110 to $120 CAD / hour
- Full-time
We are seeking a Systems Engineer to join our team for a 12-month contract. In this role, you will be responsible for architecting, testing, and executing enterprise-wide software updates…
Added 1 month ago
Principal AI Engineer - Tangerine
Scotiabank
Toronto, ON
…challenge head-on with leading technology and the unstoppable power of…
Added 1 month ago
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Intermediate Electrical Engineer
AtkinsRéalis
Winnipeg, MB
- Full-time
As AtkinsRéalis positions itself for growth in the Manitoba marketplace, we are looking for an Intermediate Electrical Engineer to join our team in our Winnipeg office. You will be trained…
Added 3 months ago
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Senior Hydrogeologist
AtkinsRéalis
Hamilton, Ontario · Toronto, Ontario · Vaughan, Ontario
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…

Doppel

Machine Learning Engineer, Detection (TOR)

Toronto, ON, Canada

Full-time

Apply About employer

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Job details

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

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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