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Added 25 mins ago
Data Engineer, Lead
University of Toronto
Toronto, ON
provide data, reporting and analytics services within our distributed institutional research model: lead institution-wide analysis projects, provide training opportunities for divisional…
Added 40 mins ago
RE
Data Operations Engineer AI - Co-op Student (Winter 2027)
Rodan Energy Solutions Inc.
Mississauga, ON
- Internship
Currently enrolled in Computer Science, Engineering, Data Analytics, Information Systems, AI, Software Engineering, or a related program.
Added 40 mins ago
RC
Renewable Energy Engineer (Entry-Level)
Renewable Careers
Toronto, ON
- $80,000 to $110,000 CAD / year
- Full-time
…are expanding our Toronto team and looking for an entry-level engineer who wants to help build Canada's clean energy…
Added 40 mins ago
RI
Production Support Engineer
Rivago Infotech Inc
Toronto, ON
- Contract
Role : Production Support Engineer / Application Support Engineer
Added 40 mins ago
IS
Generative AI Engineer
Iris Software Inc.
Toronto, ON
- Contract
Added 40 mins ago
QI
AI Engineer
Quality IT Resourcing
Montreal, QC
- Contract
Engineer the context supplied to agents: select and assemble relevant instructions, retrieved information, tool outputs, and conversation history within token and access-control constraints.
Added 40 mins ago
IA
AI/ML Platform Engineer – Containers & GPU Infrastructure - Canada
IT Accel, Inc.
Toronto, ON
- Full-time
We're hiring a hands-on AI/ML Platform Engineer to build and run the infrastructure behind enterprise AI/ML services at a large financial services organization. The core of the job is…
Added 40 mins ago
O
Senior Business Development Advisor
Ovintiv
Calgary, AB
- Full-time
Bachelor’s degree in technical field (Engineer, Geologist, etc.) or business (Finance, Accounting, etc.).
Added 40 mins ago
AS
Senior Data Developer
AgileGrid Solutions
Canada
- Full-time
We are seeking a Senior Data Developer (Engineer) to help build the data foundation for Contact Distributor, Intact’s new platform for broker and distributor master data. This platform will…
Added 55 mins ago
IC
Senior Data Engineer
Infotek Consulting Inc.
Toronto, ON · Greater Toronto Area, Canada
- $70 to $100 CAD / hour
- Contract
Senior Data Engineer (Azure, Databricks, PySpark) | Talent Community
Added 55 mins ago
S
AI Engineer - Senior Consultant
Slalom
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Job Title: Senior Consultant – AI Engineer (Vacant Role)
Added 55 mins ago
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Full Stack Engineer
VySystems
Toronto, ON
- Full-time
Added 55 mins ago
ZL
Aerospace Quality Engineer
Zapnix LLC
Montreal, QC
- Full-time
Added 1 hour ago
T
Analytics Engineer
Tantalus
Burnaby, BC
- Full-time
Tantalus is seeking an early-career Analytics Engineer to join our Customer Operations team, reporting to the Senior Director, Customer Experience.
Added 1 hour ago
A
Principal MCP/AI Developer
Autodesk
Toronto, ON · ON · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
…responsible and reliable AI, and multiplies the impact of every engineer on the…
Added 1 hour ago
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Applied AI Test Engineer - Intern
Plusgrade
Toronto, ON · CAN - Toronto
- Full-time
Added 1 hour ago
M
Freelance Mechanical CAD&Simulation Engineer - AI Trainer
Mindrift
Remote, Canada
- Part-time
- Remote
Added 1 hour ago
P
Applied AI Engineer Intern
Plusgrade
Toronto, ON · CAN - Toronto
- Full-time
Added 1 hour ago
BL
Agent Security Engineer
Belmont Lavan Ltd
Remote, Canada
- Full-time
- Remote
Belmont Lavan is hiring an Agent Security Engineer to secure autonomous AI agents before and after they reach production. Agents now call tools, hold credentials and act on live systems, so…
Added 1 hour ago
E
Analyst (Scheduler), Project Controls
EPCOR
AB · Edmonton, Alberta
- Full-time
- Temporary
Developing and enhancing project controls tools, reporting, analytics, and best practices using Primavera P6, Power BI, Excel, Power Query, and other technologies.
Added 1 hour ago
S
Urban Water Resources Engineer
Stantec
Ottawa, ON
- Full-time
We are seeking a Professional Engineer who has built the majority of their career around hydraulic and hydrologic modelling and wants to continue developing as a technical specialist in…
Added 1 hour ago
DevSecOps Specialist
Aylo Careers
Montreal, QC
…and processes to build out our Cloud Security and Security Analytics programs. This role will provide you with the opportunity and autonomy to work in an advanced environment securing a…
Added 1 hour ago
A
DevSecOps Specialist
Aylo
Montreal, QC
- Full-time
…and processes to build out our Cloud Security and Security Analytics programs. This role will provide you with the opportunity and autonomy to work in an advanced environment securing a…
Added 1 hour ago
TE
Facility Reliability & Integrity (FRI) Planner
TC Energy
Calgary, AB
- Full-time
Professional Engineer designation in Alberta.
Added 1 hour ago
R
Software Engineer in Algorithms & Optimization
RideCo
Waterloo, ON
- Full-time

Plusgrade

Applied AI Test Engineer - Intern

Toronto, ON, Canada
CAN - Toronto, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English
Posted: Nov 4, 2026

Original job description

Employment Type:

Intern (Fixed Term) (Trainee)

Job Description:

QA Test Engineer Co-op

Testing machine learning pipelines and autonomous agents is completely different from testing deterministic software, and our team needs someone who wants to break live AI systems, catch hallucinations, and ship resilient test automation.

What You'll Be Doing

Working under the direction of a Senior SDET on the Applied AI Engineering team, you will build and maintain automated test suites that safeguard production machine learning pipelines and agentic AI systems. You will spend your days testing model-serving endpoints, validating data schemas, asserting against non-deterministic agent workflows, and developing Python utilities that stress-test edge cases before code ships. Coding agents and LLM tooling handle the initial test scaffolding and data synthesis, allowing you to focus your attention on triaging complex failures and verifying fallback paths. Everything you test and automate directly unblocks live releases across critical initiatives powering travel pricing and partner commerce.

The Stack

Python · pytest · Postman · Locust · k6 · Airflow · Dagster · Prefect · MLflow · Weights & Biases · dbt · Spark · Docker · Kubernetes · AWS · GCP · GitHub Actions · GitLab CI · Jenkins · Git

What You Bring

You get up to speed quickly on unfamiliar systems and complex codebases, understanding how components connect and becoming productive on active production suites without needing hand-holding.
You have hands-on experience designing, writing, and maintaining automated tests, with a strong understanding of test case design, defect tracking, and regression prevention.
You write clean, functional Python for test automation and scripting, and you are comfortable building utilities, data-setup scripts, or running API tests with tools like pytest or Postman.
You understand that machine learning models and AI agents fail differently from traditional deterministic code, and you are eager to test data contracts, pipeline reproducibility, and edge cases where output legitimately changes between runs.
When it comes to AI, you already rely on coding assistants and LLMs to generate test scaffolding, write scripts, or inspect errors, with the sharp judgment to catch hallucinations, verify assertions, and reject code that falls short.

Why Plusgrade

Travel is about the moments that make a journey feel personal. At Plusgrade, we build the technology that makes those moments possible, from upgrade offers and loyalty experiences to revenue tools used by 575+ airline, hospitality, cruise, rail, and financial services partners worldwide.

The work is global, complex, and rewarding. You will solve meaningful problems, take ownership from idea to outcome, and work alongside people who are smart, curious, and committed to doing great work.

We also give our teams access to AI tools and the encouragement to use them thoughtfully, to move faster, explore ideas, and build better ways of working.

We trust our teams to do their best work. That means autonomy, flexibility, and room to grow.

Come help us shape the future of travel.

What You'll Love About Us

🏦 RRSP Matching · 🏥 Comprehensive Health Plans · 📅 Flexible Paid Time Off · ✈️ Travel Experience Perk · 🧘 Annual Wellness Perk · 🚆 Commuter Perk · 🌅 Tenure-Based Work From Anywhere Program · 🍼 Parental Leave Top Up · 🌍 Adventure Pass · 🎓 Learning Allowance

Our Process

We believe every candidate deserves a fair, transparent experience, so regardless of outcome, everyone gets feedback.

Our process: Recruiter call → Hiring Manager interview → Final interview.

Plusgrade is an equal-opportunity employer committed to accessible recruitment. We welcome applications from all qualified individuals regardless of gender identity or expression, race, ethnic origin, creed, place of origin, age, sex, marital status, physical or mental disability, sexual orientation, or any other category protected by law. Accommodation is available upon request. We may use AI-assisted tools to help screen and assess applicants for this role. This posting is for an existing vacancy.

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More about this job

Responsibilities

You will build and maintain automated test suites to safeguard production machine learning pipelines and agentic AI systems. Your role involves triaging complex failures, verifying fallback paths, and developing Python utilities to stress-test edge cases.

Requirements

You should have hands-on experience designing and maintaining automated tests with a strong understanding of test case design and defect tracking. Proficiency in Python and familiarity with AI/LLM tooling for test scaffolding are essential for this role.

Skills

Python
Pytest
Postman
Locust
K6
Airflow
Dagster
Prefect
MLflow
Weights & Biases
Dbt
Spark
Docker
Kubernetes
AWS
GCP

Benefits

RRSP Matching
Comprehensive Health Plans
Flexible Paid Time Off
Travel Experience Perk
Annual Wellness Perk
Commuter Perk
Tenure-Based Work From Anywhere Program
Parental Leave Top Up
Adventure Pass
Learning Allowance

Visa sponsorship

Not detected in the job text

Keywords

Applied AI
QA Test Engineer
Machine Learning Pipelines
Autonomous Agents
Test Automation
Python
Pytest
Postman
Locust
K6
Airflow
Dagster
Prefect
MLflow
Weights & Biases
Dbt
Spark
Docker
Kubernetes
AWS
GCP
GitHub Actions
GitLab CI
Jenkins
Git
Data Schemas
Regression Prevention
LLM Tooling
API Testing
Data Synthesis

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