Jobs in Ontario (211,787 jobs)

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

211,787 listings · 21,246 employers Counted Nov 7, 2026. How we count

About these jobs

Employers hiring include Loblaw Companies Limited (5,369 listings), Shoppers Drug Mart (4,157 listings), Walmart Canada (3,518 listings).

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

34,319 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	18,329
CAD / year	80,000.00	14,624
USD / year	155,000.00	86
CAD / month	4,054.00	68
CAD / week	1,500.00	46
CAD / day	101.00	23
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

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Added 17 hours ago
CI
Brokerage Support Specialist
Colliers International
Toronto, ON
- Full-time
Added 17 hours ago
C
Private Banking Associate
CIBC
Toronto, ON
- Full-time
Added 17 hours ago
C
Quantum Machine Learning Research Scientist
CIBC
Toronto, ON
- Full-time
Added 17 hours ago
C
Senior Analyst, Data Management & Solutions - Liquidity (12 Month Secondment)
CIBC
Toronto, ON
- Full-time
Added 17 hours ago
CT
Store Manager
Canadian Tire Corporation
Brampton, ON
- Full-time
Added 17 hours ago
B
Director, Global Markets, Corporate Banking - Commodities
BMO
Toronto, ON
- Full-time
Added 17 hours ago
B
Senior Manager, Business Transformation
BMO
Toronto, ON
- Full-time
Added 17 hours ago
B
Digital Product Manager
BMO
Toronto, ON
- Full-time
Added 17 hours ago
B
Service Centre Manager - Speedy Glass
Belron
Hanover, ON
- Full-time
Added 17 hours ago
C
Food Service Supervisor Full Time
Cook
Ottawa, ON
- Full-time
Added 17 hours ago
A
Field Representative - Alcoholic Beverages
Acosta
Toronto, ON
- Full-time
Added 17 hours ago
C
Policy & Governance Coordinator (12-month contract)
CPSO
Toronto, ON
- Full-time
Added 17 hours ago
R-
Assistant Store Manager - RioCan Orleans
RCL - Reitmans Canada Ltd/Ltée
Ottawa, ON
- Full-time
Added 17 hours ago
D
Collections Specialist
Dentons
Toronto, ON
- Full-time
Added 17 hours ago
OV
Chef de Cuisine | Full-Time | Enercare Centre
Oak View Group
Toronto, ON
- $33 to $35 CAD / hour
- Full-time
Added 17 hours ago
GE
Accounts Payable Specialist
Greenhawk Equestrian Sport
Mississauga, ON
- Full-time
Added 17 hours ago
E
Senior Financial Planning Analyst
ecobee
Toronto, ON
- Full-time
Added 17 hours ago
CN
Deputy Vice President, Project Controls and Corporate Planning
Canadian Nuclear Laboratories
Chalk River, ON
- Full-time
Added 17 hours ago
SC
Technical Services Director
SYSTRA Canada
Toronto, ON
- Full-time
Added 17 hours ago
CN
Risk Analyst
Canadian Nuclear Laboratories
Chalk River, ON
- Full-time
Added 17 hours ago
CB
Financial Analyst
Cassels Brock & Blackwell LLP
Toronto, ON
- Full-time
Added 17 hours ago
CS
Server
Canlan Sports
Oshawa, ON
- Full-time
Added 17 hours ago
I-
General Labourers
I8IS - Infiniti Software Solutions
Richmond Hill, ON
- Full-time
Added 17 hours ago
I-
General Labor
I8IS - Infiniti Software Solutions
Mississauga, ON
- Full-time
Added 17 hours ago
TG
Technology Partner, Listings
TMX Group
Toronto, ON
- Full-time

High Tech Genesis

Platform API Engineer

Ottawa, ON, Canada

Contract

Apply About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Dec 6, 2026
Posting language: English
Posted: Nov 6, 2026

Original job description

Job Overview

We are seeking a Platform API Engineer to design, develop, and maintain scalable APIs and backend services that support modern applications and enable engineering teams to build new products and capabilities.

This role is ideal for an experienced backend engineer with strong Ruby on Rails and API development experience who enjoys solving complex backend problems, building reliable services, and creating APIs that are easy to integrate and maintain.

Key Responsibilities

Design, develop, and maintain scalable APIs and backend services using Ruby on Rails.
Build and enhance REST and/or GraphQL APIs to support applications and product capabilities.
Design clean, consistent, and maintainable API contracts and backend architecture.
Develop integrations with internal systems and third-party services.
Work with PostgreSQL, MySQL, or similar relational databases and data models.
Improve API performance, scalability, reliability, and maintainability.
Write automated tests and maintain high standards for code quality.
Troubleshoot and resolve production issues across backend services and APIs.
Collaborate with frontend engineers, product teams, and other developers to deliver end-to-end solutions.
Participate in technical design discussions, code reviews, and architectural decisions.
Maintain API documentation and development standards.
Take ownership of technical initiatives from planning through implementation and delivery.

Required Qualifications

Strong professional experience with Ruby on Rails.
Hands-on experience designing and developing production APIs, particularly REST and/or GraphQL.
Strong understanding of API design, backend architecture, and software engineering principles.
Experience with relational databases, preferably PostgreSQL or MySQL.
Experience building and supporting production backend systems.
Experience with automated testing and modern development practices.
Strong troubleshooting and problem-solving skills.
Ability to work effectively with frontend, product, and engineering teams.
Strong communication skills and ability to take ownership of technical projects.

Preferred Qualifications

Experience working with large or complex API platforms.
Experience with API authentication and authorization, including OAuth or JWT.
Experience with background processing or event-driven architectures.
Experience with Redis, Kafka, Sidekiq, Elasticsearch, or similar technologies.
Experience with AWS, GCP, or other cloud platforms.
Experience with API documentation and developer tooling.
Experience building platform services consumed by multiple engineering teams.
Experience with microservices or distributed systems.

Apply About employer

More about this job

Responsibilities

Design, build, and maintain scalable Ruby on Rails APIs and backend services, including integrations, database models, and API documentation. Improve service performance and reliability, resolve production issues, and collaborate with product and engineering teams on technical design and delivery.

Requirements

Requires strong professional Ruby on Rails experience, production API development experience with REST and/or GraphQL, and knowledge of backend architecture and relational databases. Candidates should also have experience supporting production systems and automated testing, along with strong troubleshooting, communication, collaboration, and project ownership skills.

Skills

Ruby On Rails
API Development
REST APIs
GraphQL
Backend Architecture
PostgreSQL
MySQL
Automated Testing
API Authentication And Authorization
OAuth
JWT
Background Processing
Event-Driven Architecture
Redis
Kafka
Sidekiq

Visa sponsorship

Not detected in the job text

Keywords

Ruby On Rails
Platform APIs
Backend Services
REST
GraphQL
API Contracts
Backend Architecture
PostgreSQL
MySQL
Relational Databases
Automated Testing
Production Systems
API Authentication
Authorization
OAuth
JWT
Background Processing
Event-Driven Architecture
Redis
Kafka
Sidekiq
Elasticsearch
AWS
GCP
API Documentation
Developer Tooling
Microservices
Distributed Systems
Code Reviews
Third-Party Integrations

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