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Added 5 months ago
Senior Data Platform Engineer
Helcim Inc
Calgary, Alberta
Helcim is searching for a Senior Data Platform Engineer to help lead the design, development, and ongoing evolution of the data platform that powers Helcim’s mission to become the world’s…
Added 5 months ago
S
Staff Machine Learning Engineer, AI Generation Engine
SandboxAQ
Remote, Canada
- $146,200 to $258,000 CAD / year
- Full-time
- Remote
We are looking for a hands-on engineer who is passionate about owning the entire lifecycle of model development. This requires significant industry experience in bringing machine learning…
Added 5 months ago
S
Senior Machine Learning Engineer, AI Generation Engine
SandboxAQ
Remote, Canada
- $119,000 to $210,000 CAD / year
- Full-time
- Remote
We are looking for a hands-on engineer who is passionate about owning the entire lifecycle of model development. This requires significant industry experience in bringing machine learning…
Added 5 months ago
MF
Senior Software Development Engineer in Test
Magnet Forensics
Ottawa, Ontario · Toronto, Ontario · Waterloo, Ontario
- Full-time
We are seeking a highly skilled and experienced Senior Software Development Engineer in Test (SDET) to join our engineering team, supporting the development and deployment of our…
Added 5 months ago
B
Principal Data Developer
BlueCat
Toronto, Ontario
- Full-time
We are seeking a highly skilled Data Principal Engineer with strong leadership, communication, and collaboration abilities to join our dynamic team. In this exciting role, you will help us…
Added 3 months ago
AI Solutions Engineer
Connor, Clark & Lunn Private Capital Ltd.
Toronto, Ontario
Interested in joining one of Canada’s top performing asset managers? We are looking for an AI Solutions Engineer for a new full-time position on our Connor, Clark & Lunn Private Capital…
Added 5 months ago
S
Senior Site Reliability Engineer
SimCorp
Toronto, Ontario
- Full-time
As a Senior Site Reliability Engineer, you will be embedded within one of our Product Areas, taking ownership of specific responsibility domains where your experience, interests, and growth…
Added 5 months ago
A
Intermediate Software Engineer
AltaML
Calgary, AB · Edmonton, AB · Toronto, ON
- Full-time
The Intermediate Software Engineer independently owns and delivers well-defined, small-to-medium complexity user stories end to end. You work AI-first by default - using Claude Code and…
Added 5 months ago
GE
Senior Data Engineer
GFL Environmental Inc.
Vaughan, Ontario
- Other
Our GFL team is expanding, and we are seeking a highly skilled Senior Data Engineer with experience in designing and maintaining real-time data streaming pipelines and building robust data…
Added 5 months ago
P
Principal/Senior Software Engineer
PointClickCare
Mississauga, Ontario
- Full-time
Hands-on experience with modern frontend frameworks, primarily React
Added 5 months ago
IL
Senior Engineer – Digital Distribution & Engagement
Invesco Ltd.
Charlottetown, Prince Edward Island
- Full-time
…analytic frameworks. The position requires a strong technical hands-on-skilled engineer. A successful candidate must demonstrate strong analytical, design, programing, and debugging skills…
Added 5 months ago
TA
Forward Deployed Engineer (Generative AI)
Tiger Analytics Inc.
Remote, Canada
- Full-time
- Remote
Tiger Analytics is looking for experienced Forward Deployed Engineer (Generative AI) with Gen AI experience to join our fast-growing advanced analytics consulting firm. Our employees bring…
Added 5 months ago
TA
Forward Deployed Engineer (Generative AI)
Tiger Analytics Inc.
Remote, Canada
- Full-time
- Remote
Tiger Analytics is looking for experienced Forward Deployed Engineer (Generative AI) with Gen AI experience to join our fast-growing advanced analytics consulting firm. Our employees bring…
Added 4 months ago
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Engineering Manager, Data AI & Analytics
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Toronto, Ontario
- Full-time
- Other
Reporting to the Director of Platform Engineering, Data AI & Analytics, the Data Engineer Manager leads and develops a team of Data Engineers while remaining hands-on in the delivery of…
Added 4 months ago
AI Developer/Prompt Engineer
Levio
Toronto, Ontario
We are seeking AI Developer /Prompt Engineer to contribute to major projects.
Added 5 months ago
H
AI Engineer - Remote
Huzzle
Remote, Canada
- Full-time
- Remote
We are looking for a skilled AI Engineer with at least 2 years of hands-on experience in developing, deploying, and optimizing AI and machine learning solutions. You will work closely with…
Added 5 months ago
S
Associate AI Engineer
ShyftLabs
Toronto, Ontario
- Full-time
ShyftLabs is looking for an Associate AI Engineer (New Grad) to join our growing engineering team. This is an exciting opportunity for a recent graduate or early-career engineer who wants…
Added 5 months ago
D
Software Engineer, Detection (TOR)
Doppel
Toronto, ON
- $157,000 to $367,000 CAD / year
- Full-time
Hands-on experience building production backend services or full-stack features (or equivalent). Proven record of shipping end-to-end: design → implementation → testing → monitoring →…
Added 2 months ago
Sr. Staff Physical Design Timing Engineer (STA)
Lightmatter
Toronto, ON
We are hiring a Physical Design Timing Engineer to help drive backend digital execution for some of the leading photonics based interconnect solutions. You will work alongside a team of…
Added 1 month ago
M
DevSecOps Engineer
Maxima
Toronto, ON
- Full-time
It is a hands-on role in a full-stack environment, with a shift-left approach to security and a share of developer infrastructure work.
Added 5 months ago
B
Machine Learning Engineer, Underwriting
Bree
Remote, Canada
- $180,000 to $250,000 CAD / 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 5 months ago
SA
Machine Learning Engineer
Sanctuary AI
Vancouver, British Columbia
- Full-time
Hands-on experience deploying ML models to production.
Added 4 months ago
RA
Staff Embedded Software Engineer, VCS
Rivian and Volkswagen Group Technologies
Remote, Canada
- $137,300 to $171,600 CAD / year
- Full-time
- Remote
Hands-on experience debugging in real world environments with embedded diagnostics tooling such as oscilloscopes, logic analyzers, JTAG etc
Added 6 months ago
A
Field Engineering Co-Op
Acceldata
Kitchener, Ontario
- Internship
As a Field Engineer Co-op at Acceldata, you’ll be working hands-on with complex distributed systems, helping real customers solve deep infrastructure and data observability challenges.
Added 6 months ago
A
Sales Engineering Co-Op
Acceldata
Kitchener, Ontario
- Internship
As a Sales Engineer Co-op at Acceldata Inc, you will work closely with our sales engineering team to support customer-facing initiatives across solution design, pre-sales, and technical…

Doppel

Software Engineer, Detection (TOR)

Toronto, ON, Canada

$157,000 to $367,000 CAD / year · Full-time

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Job details

Pay: $157,000 to $367,000 CAD / year
Job type: Full-time
Posting language: English
Posted: May 12, 2026

Original job description

Why Join Doppel

Doppel is building the future of social engineering defense. Our AI-native platform uses agentic AI to protect executives, employees, customers, and brands from phishing, impersonation, fraud, and other AI-powered threats across digital channels. We help some of the world’s most recognized brands detect and dismantle attacker infrastructure while strengthening employee resilience through threat-informed training and simulation. By unifying Digital Risk Protection, Human Risk Management and Email Security, Doppel connects threats into a real-time intelligence graph to power faster disruption, smarter defense, and modern security awareness at scale.

Backed by leading investors including Andreessen Horowitz and Bessemer Venture Partners, and trusted by leading enterprises, Doppel is a rapidly growing Series C startup building the future of social engineering defense. Our team combines deep cybersecurity expertise, operational rigor, and startup velocity to solve some of the internet’s most urgent trust and safety challenges.

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 passionate engineers who love building and operating backend systems at scale - someone who can take ambiguous detection/product problems and deliver reliable production services and UIs that help our ops and customers find and remediate threats. You’ll focus on high-throughput ingestion, enrichment, scoring and alerting pipelines, APIs and dashboards, threat-linking infrastructure, and reliable automation that the stakeholder teams use every day.

Hands-on experience building production backend services or full-stack features (or equivalent). Proven record of shipping end-to-end: design → implementation → testing → monitoring → oncall.
Strong mastery of at least one backend language (Python, Go, Java, or Node) and comfort with web APIs, async processing, and service frameworks.
Solid system design skills: experience architecting scalable, fault-tolerant systems (sharding, caching, queueing, idempotency, backpressure).
Experience building and operating large data pipelines (batch or streaming), working with warehouses or OLAP systems for analytics, and designing efficient schemas for scale.
Deep practical experience with backend concerns: databases (SQL + NoSQL), caching, message queues, rate limiting, retries, and cost/latency tradeoffs.
Strong observability, debugging and incident response skills: structured logging, tracing, dashboards, SLOs/alerts, and the ability to triage and fix production issues.
Product ownership and excellent cross-functional communication - you’ll collaborate with Operations, Customer Success, Sales, to deliver measurable outcomes.

As part of our Toronto team, you’ll:

Work on a wide range of asks that protect billions of people from digital impersonation
Have complete end to end ownership - from directly collecting customer requirements to continuously iterating on shipped releases.
Mentor junior engineers, make key product decisions, and foster a high-performing team culture

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

Design and operate scalable backend systems and high-throughput data pipelines to identify and neutralize digital threats. You will take end-to-end ownership of features from requirement gathering to production monitoring and mentor junior engineers.

Requirements

Requires strong mastery of a backend language (Python, Go, Java, or Node) and deep experience with scalable system architecture and data pipelines. Candidates must have a proven track record of shipping production services and managing the full software development lifecycle.

Skills

Backend Development
System Design
Data Pipelines
Python
Go
Java
Node
SQL
NoSQL
API Design
Async Processing
Observability
Incident Response
Full-stack Development
Scalable Systems
Mentoring

Benefits

Free lunch and dinner in the office
Flexible PTO
Quarterly team offsites
Equity

Visa sponsorship

Not detected in the job text

Keywords

Software Engineering
Detection
AI
Social Engineering Defense
Backend Services
High-throughput Ingestion
Enrichment Pipelines
Threat-linking Infrastructure
Sharding
Caching
Queueing
Idempotency
Backpressure
OLAP
Message Queues
Rate Limiting
Structured Logging
Tracing
SLOs
Cybersecurity
Phishing
Impersonation
Online Fraud
SOC Agents
Threat Grid
Distributed Systems
Full-stack
API
Data Warehousing

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