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Added 11 mins ago
Custom Engineering Specialist
Ametek, Inc.
Calgary, AB
…serve various industries, including green energy, downstream production, combustion, and sulfur recovery. This role requires an engineer who is technically savvy, collaborative, and…
Added 11 mins ago
Renewable Power Senior Engineer
Hatch
Mississauga, ON
…sector includes renewable power, energy storage and hybrid systems, transmission and distribution, grid modernization and electrification, thermal, nuclear, waterpower, and in the oil and…
Added 11 mins ago
Solar Lead, Senior EOI
Hatch
Mississauga, ON
…sector includes renewable power, energy storage and hybrid systems, transmission and distribution, grid modernization and electrification, thermal, nuclear, waterpower, and in the oil and…
Added 27 mins ago
MI
Junior Quality Engineer
Magna International
Brampton, ON
- Full-time
The Magna Exteriors portfolio of products includes access systems such as liftgates, exterior trim, modular systems, front-end modules including fascia, active aerodynamic systems and other…
Added 27 mins ago
AA
Software Engineer IV, Viper Engineering
ACV Auctions
Toronto, ON
- Full-time
ACV Auctions is looking for a Software Engineer to join our ACV Retail - Viper Teams and work on our SaaS Product. The position will focus on backend development & maintenance of Go Lang…
Added 27 mins ago
SG
Transformer Design Engineer
Socomec Group
Brampton, ON
- Full-time
This multifunctional role combines magnetics product development with hands-on manufacturing engineering. The engineer will take ownership of designs from initial simulation and…
Added 27 mins ago
Senior Software Engineer
Electronic Arts
Vancouver, BC
5+ years of professional software engineering experience designing, building, and maintaining production software systems in Python and/or Go.
Added 42 mins ago
AI
IBM Financial Transaction Engineer
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Build and support integrations between FTM and upstream/downstream systems using enterprise integration patterns.
Added 42 mins ago
RE
Data Operations Engineer AI - Co-op Student (Winter 2027)
Rodan Energy Solutions Inc.
Mississauga, ON
- Internship
In this role, you will work directly with operational workflows such as facility data aggregation, production system integration, and client onboarding, identifying opportunities to…
Added 42 mins ago
LM
Systems Engineer Stf - Electronic Warfare
Lockheed Martin
Ottawa, ON
- Full-time
The Electronic Warfare (EW) Programs team, located in Kanata Ontario, requires a Senior Systems Engineer to work alongside Department of National Defence (DND) in support of the Strongbow…
Added 42 mins ago
AC
Civil & Structural Engineer - Transmission and Distribution Substation Designs
Artelia Canada
Mississauga, ON
- Full-time
Assigned to the Transmission, Distribution, and Energy production department as a professional in your discipline, you will be responsible for the delivery of specifications, designs, and…
Added 42 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 42 mins ago
AS
Technical Manager – EAF Steelmaking
Algoma Steel Inc.
Sault Ste. Marie, ON
- Full-time
…manufacturing process that meets all environmental, quality and production objectives. Leading a team of process specialists, this role drives process optimization, technology improvement,…
Added 42 mins ago
C
Electrical Substation Engineer
CIMA+
Kelowna, BC · Vancouver, British Columbia
- $106,000 to $146,000 CAD / year
- Full-time
…projects, from feasibility studies to commissioning. From the production of electricity from renewable sources to resource transformation, our expertise markets are the driving force of a…
Added 42 mins ago
C
Electrical Substation Engineer
CIMA+
Calgary, AB · Vancouver, British Columbia
- Full-time
…projects, from feasibility studies to commissioning. From the production of electricity from renewable sources to resource transformation, our expertise markets are the driving force of a…
Added 42 mins ago
UO
Mechanical Engineer
University of Alaska Fairbanks Petroleum Engineering
Engineer, BC
- Full-time
This role is an excellent opportunity for a Mechanical Engineer seeking hands-on experience, strong mentorship, and exposure to real-world manufacturing environments. Many engineers build…
Added 42 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 57 mins ago
T
Software Engineer II
TD
Toronto, ON · Montreal, QC
- Full-time
The TD Insurance Digital Platform is looking for a Software Engineer to join the MyInsurance development team. As a Software Engineer, the candidate will be a key contributor to…
Added 57 mins ago
Software Engineer IV, Viper Engineering
ACV
Toronto, ON
ACV Auctions is looking for a Software Engineer to join our ACV Retail - Viper Teams and work on our SaaS Product. The position will focus on backend development & maintenance of Go Lang…
Added 57 mins ago
C
Electrical Substation Engineer
CIMA+
Saskatoon, SK
- Full-time
…projects, from feasibility studies to commissioning. From the production of electricity from renewable sources to resource transformation, our expertise markets are the driving force of a…
Added 57 mins ago
SI
Software Engineer - Strong Java, Python and Linux experience
Smart IT Frame LLC
Toronto, ON
- Contract
Deep understanding of Linux internals including processes threads memory management file systems networking signals IPC mechanisms and performance diagnostics Comfortable troubleshooting…
Added 57 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 57 mins ago
SG
Field Service Engineer
SIG Group
Mississauga, ON
- Full-time
…do mechanical adjustments, trouble shoot and repair control systems. Promote improvement of line performance and efficiency as part of continuous improvement…
Added 57 mins ago
OM
Senior Quality Technician
Ottawa Mould Craft Ltd.
Ottawa, ON
- Full-time
Reporting to the Quality Engineer the Quality Technician, ensures the highest standards of product quality and accuracy by conducting comprehensive inspections, measurements, and…
Added 57 mins ago
C
Electrical Substation Engineer
CIMA+
Kelowna, BC
- $106,000 to $146,000 CAD / year
- Full-time
…projects, from feasibility studies to commissioning. From the production of electricity from renewable sources to resource transformation, our expertise markets are the driving force of a…

Plusgrade

Applied AI Test Engineer - Intern

Toronto, ON, Canada
CAN - Toronto, Canada

Full-time

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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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