Jobs in Ontario (217,870 jobs)

Jobs across Ontario, Canada. Choose a city or town to search nearby.

217,870 listings · 21,513 employers Counted Nov 10, 2026. How we count

About these jobs

Employers hiring include Loblaw Companies Limited (5,529 listings), Shoppers Drug Mart (4,318 listings), Walmart Canada (3,669 listings).

Common roles: Retail sales associate, Practical nurse, Registered nurse.

35,166 of these listings include employer-provided pay. Open a job to see its currency and pay period.

Advertised starting pay
Pay period	Median starting pay	Listings
CAD / hour	23.00	18,816
CAD / year	80,000.00	14,972
USD / year	155,000.00	86
CAD / month	4,054.00	68
CAD / week	1,500.00	48
CAD / day	120.50	24
USD / hour	20.00	13

Employer-listed minimums from at least 10 listings per currency and pay period. These are advertised starting amounts, not employee salaries. Jobs without a minimum and unusual amounts are excluded.

Workplace classifications: 0% remote, 17% hybrid, 82% on-site, 0% not specified. Hybrid and on-site classifications may be inferred from descriptions. Check the original ad.

Based on the dated count above. Listings can change. How we count

Jobs in Ontario

Group jobs by employerEmail me new jobs Save this search

Added 4 hours ago
LH
Occupational Therapist
Lifemark Health Group
Mississauga, ON
- $33.57 to $49.24 CAD / hour
- Internship
Added 4 hours ago
LH
Occupational Therapist
Lifemark Health Group
Pickering, ON
- $69,826 to $102,411 CAD / year
- Full-time
Added 4 hours ago
TC
Retail Store Associate Part Time Seasonal Homesense-Durham Centre
TJX Canada – Winners, Marshalls, HomeSense
Ajax, ON
- Part-time
Added 4 hours ago
TC
Retail Store Associate - Full-Time Permanent, Intercity Mall, Thunder Bay
TJX Canada – Winners, Marshalls, HomeSense
Thunder Bay, ON
- Full-time
Added 4 hours ago
AU
Security Guard - Mobile
Allied Universal
Oshawa, ON
- $20 CAD / hour
- Full-time
Added 4 hours ago
SM
Registered Respiratory Therapist
Stevenson Memorial Hospital
Alliston, ON
- Internship
Added 4 hours ago
NA
Broker, Commercial Insurance
NFP, an Aon company (Canada)
Toronto, ON
- Full-time
Added 4 hours ago
AU
Security Guard --- Warehouse
Allied Universal
Brampton, ON
- $18 CAD / hour
- Full-time
Added 4 hours ago
NA
Senior Broker, Commercial Insurance
NFP, an Aon company (Canada)
Toronto, ON
- Full-time
Provincial P&C License required or obtained within 90 days of employment
Added 4 hours ago
TC
Loss Prevention Store Security Agent
TJX Canada – Winners, Marshalls, HomeSense
Sault Ste. Marie, ON
- $37,590 to $52,626 CAD / year
- Full-time
Added 4 hours ago
TC
Retail Store Associate Part Time Seasonal Marshalls - Windsor Commons
TJX Canada – Winners, Marshalls, HomeSense
Windsor, ON
- Part-time
Added 4 hours ago
TC
Coordinator Back warehouse Winners Homesense Kingston
TJX Canada – Winners, Marshalls, HomeSense
Kingston, ON
- Full-time
Added 4 hours ago
DM
retail merchandiser
Devrew Merchandising Inc.
Waterloo, ON
- Part-time
Added 4 hours ago
SM
Medical Radiation Technologist (CT & X-Ray)
Stevenson Memorial Hospital
Alliston, ON
- Full-time
Added 4 hours ago
VA
Veterinary Technician Assistant, Reception, Northumberland Animal Hospital
VCA Animal Hospitals
Colborne, ON
- Internship
Added 4 hours ago
SM
Registered Practical Nurse - Med/Surg
Stevenson Memorial Hospital
Alliston, ON
- Full-time
Added 4 hours ago
SM
Unit Assistant, Emergency
Stevenson Memorial Hospital
Alliston, ON
- Internship
There is the expectation that you are available to work weekdays, weekends and all shifts (days, nights, 12 hour shifts)
Added 4 hours ago
DM
retail merchandiser
Devrew Merchandising Inc.
Kitchener, ON
- Part-time
Added 4 hours ago
SM
Registered Practical Nurse - Med/Surg
Stevenson Memorial Hospital
Alliston, ON
- Part-time
Added 4 hours ago
SM
Registered Practical Nurse - Med/Surg
Stevenson Memorial Hospital
Alliston, ON
- Part-time
Added 4 hours ago
DM
retail merchandiser
Devrew Merchandising Inc.
Cambridge, ON
- Part-time
Added 4 hours ago
WC
(CAN) General Merchandise Associate
Walmart Canada
Waterloo, ON
- Contract
Added 4 hours ago
SM
Registered Practical Nurse - Med/Surg
Stevenson Memorial Hospital
Alliston, ON
- Part-time
Added 4 hours ago
SM
Registered Nurse, Perioperative
Stevenson Memorial Hospital
Alliston, ON
- Internship
Added 4 hours ago
SM
Registered Nurse - Med/Surg
Stevenson Memorial Hospital
Alliston, ON
- Internship

iFrame

Cluster Site Reliability Engineer

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

$210,000 – $340,000 USD (US Cologix regions) / equivalent in CA. · Full-time

Apply on LinkedIn About employer

Applications open in a new tab.

Job details

Pay: $210,000 – $340,000 USD (US Cologix regions) / equivalent in CA.
Job type: Full-time
Apply by: Nov 13, 2026
Posting language: English
Posted: Nov 10, 2026

Original job description

Cluster & SRE

Cluster Site Reliability Engineer

Own the physical reality of the platform in one of our seven regions. You bring up new GPU racks, validate InfiniBand fabric end-to-end, and keep the cluster running at the SLA. This is a hands-on role; you will see the hardware.

Apply by email All open roles

Team Cluster & SRE

Location On-site

Cologix region of choice (Toronto, Montréal, Columbus, Vancouver, Ashburn)

Type Full-time

IC4–IC6

Stack LinuxInfiniBand (NDR / XDR)NCCL / RCCLKubernetes (host-level)TerraformPrometheus / GrafanaGo or Python

Apply by email

Hiring manager replies within 5 business days.

The team

About The Team

Cluster SRE is six engineers across the seven regions. Each region has a primary and a secondary; you will be one of those for your region. The team coordinates daily, deploys weekly, and rotates a global pager.

Reports to the head of cluster engineering. Primary on a single region; rotates secondary for one neighboring region.

The role

What you'll do

01 Bring up new B200 / B300 / MI300X racks: cabling, ToR config, NCCL/RCCL all-reduce validation, MFU baseline tests.
02 Drive InfiniBand fabric to spec - NDR / XDR depending on the rack - and chase residual bit-error budget down to zero.
03 Run capacity planning across seven regions: forecast demand, model power and thermal headroom, work with procurement on lead times.
04 Own the regional incident response. P1 incidents page within fifteen minutes; resolution target is four hours.
05 Build and maintain the bring-up runbook so the second hire after you can do their first rack solo.
06 Carry the global pager about one week per six, alongside runtime and customer engineering.

The bar

What we're looking for

Five-plus years operating large compute clusters - supercomputing centers, hyperscaler infra, or HPC at a national lab count.
Deep InfiniBand and Ethernet RoCE experience: subnet manager tuning, fabric debugging, lossless networking.
Strong Linux fundamentals: kernel parameters, NUMA topology, kernel cgroup limits.
Comfort writing Go or Python for tooling. We are not strict about which.
Calm under load. You will be the named person on a $50M-ARR account when something goes wrong.

Bonus

Nice to have, not required

DGX H100 / H200 / B200 bring-up history.
Experience with NVIDIA Bright / Base Command Manager.
Bare-metal provisioning systems: Tinkerbell, MAAS, Razor, or in-house equivalents.
Procurement / vendor management experience.

Compensation

In writing, like everything else

We publish bands. We meet them. The number you see on the offer is the same number your future peers got at the same level. We do not negotiate; we level.

Base

$210,000 – $340,000 USD (US Cologix regions) / equivalent in CA.

Equity

Meaningful early-stage equity, refreshed on tenure milestones.

Notes

On-site pay differential at Cologix regions outside SF / NYC / Bay Area is +5–10% to compensate for travel.

How to apply

One email is enough

Send a short note to careers@iframe.ai with the role title in the subject line. Include your CV or LinkedIn, one or two links to work you're proud of, and a sentence on why this role specifically. Hiring managers reply within five business days, regardless of outcome.

Application

A hiring manager reads every email. Reply within five business days.

Manager call

30–45 minutes. Scope, role, mutual fit. We share the comp band on this call.

Technical loop

3–4 sessions on the same day. Real problems, no homework, no whiteboard riddles.

Offer

Same-week offer at the published band for your level. Start dates are flexible.

Equal opportunity

We hire on the work. Race, gender, age, nationality, religion, sexual orientation, disability, and veteran status do not factor into our decisions. We sponsor visas for senior roles in the US, UK, and EU - bring it up on the manager call.

Need an accommodation for the interview process? Mention it in your application or write careers@iframe.ai.

Also open

Other roles you might consider

Runtime

Inference Acceleration Engineer

Ship the next 2× on the open-source model catalog. Triton, CUDA, ROCm. You will publish what you ship.

View role

Research lab

Distributed Training Researcher

Lead a paper / quarter on multi-thousand-GPU pre-training. Co-appointment with a partner university available.

View role

Customer engineering

Customer Cluster Engineer

Embedded with a small portfolio of reserved-tier accounts. Distributed training perf, NCCL, kernel tuning.

View role

All open roles

One last thing

If this role isn't quite right but you'd be a fit at iframe.ai, write anyway.

Senior engineers and researchers can apply outside the listed roles. The bar is the same. The reply window is the same.

Apply: Cluster Site Reliability Engineer General application

Apply on LinkedIn About employer

More about this job

Responsibilities

Bring up and validate GPU racks, maintain regional InfiniBand and Ethernet fabrics, and ensure cluster reliability against service-level targets. Plan capacity across regions, lead regional incident response, maintain bring-up documentation, and participate in the global on-call rotation.

Requirements

Requires at least five years operating large compute clusters, deep InfiniBand and Ethernet RoCE expertise, and strong Linux fundamentals including kernel parameters, NUMA, and cgroups. Candidates should be comfortable building tools in Go or Python and remain calm during high-impact incidents.

Skills

Linux
InfiniBand
Ethernet RoCE
NCCL
RCCL
Kubernetes
Terraform
Prometheus
Grafana
Go
Python
Cluster Operations
Capacity Planning
Incident Response
Bare-Metal Provisioning
Linux Kernel Tuning

Benefits

Equity

Visa sponsorship

Detected

Keywords

GPU Clusters
B200
B300
MI300X
InfiniBand
NDR
XDR
Ethernet RoCE
Subnet Manager Tuning
NCCL
RCCL
All-Reduce Validation
MFU Baseline Testing
Linux
NUMA
Kernel Parameters
Cgroups
Kubernetes
Terraform
Prometheus
Grafana
Go
Python
Capacity Planning
Power and Thermal Planning
Incident Response
Global On-Call
Bare-Metal Provisioning
NVIDIA Bright
Base Command Manager

Report this job

Work requirements

Jobs in Ontario