Jobs in Ontario

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

110,756 listings · 11,834 employers Counted Sep 25, 2026. How we count

About these jobs

Employers hiring include Loblaw Companies Limited (2,699 listings), Walmart Canada (1,977 listings), Walmart (1,627 listings).

Common roles: Retail sales associate, Project manager, Sales representative.

14,805 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 / year	80,000.00	7,578
CAD / hour	22.00	5,457
USD / year	100,000.00	603
USD / hour	20.00	331
CAD / month	6,424.04	24
CAD / week	612.00	21
GBP / hour	35.00	15

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, 19% hybrid, 80% 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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Collabera

Senior Python Developer

Toronto, ON, Canada

Pay: $80 to $90 CAD / hour
Job type: Contract
Apply by: Oct 24, 2026
Posting language: English
Posted: Sep 24, 2026

Apply About employer

Applications open in a new tab.

Original job description

The expected base salary range for this position is $80/Hr - $90/Hr, depending on experience, skills, and internal equity.
The Company offers a total rewards package in accordance with all applicable federal, provincial, and local laws and requirements.
Benefit eligibility and offerings vary based on role, employment status, and work location.
For contractor positions, benefits are limited to those entitlements and protections required by applicable law, which may include (as applicable) vacation pay, public holidays, leaves of absence, and other legally mandated benefits or payments.
We may use AI-enabled and/or automated tools to support parts of our recruitment process, including application screening, interview scheduling, and candidate communications.
These tools are used to enhance consistency and efficiency.
All hiring decisions involve human review and are not based solely on automated processing.

Position Summary:

We are seeking an experienced Python Developer to join a high-performing Equity Linked Technology team responsible for building innovative pre-trade solutions for Equity Derivatives products.
The role involves designing and developing scalable microservices, working on low-latency distributed systems, handling large datasets, and contributing to the modernization of a microservice-oriented architecture.
The successful candidate will work closely with Front Office users, business stakeholders, and senior technology teams to deliver high-quality software solutions in an Agile environment.
This position offers significant influence over architecture, design decisions, and the future technology roadmap.

Key Responsibilities:

Develop a deep understanding of the firm's Equity Derivatives technology ecosystem.
Design, develop, and enhance Python-based server-side applications and services.
Build and maintain RESTful APIs and distributed microservices architectures.
Design scalable and maintainable software solutions aligned with business requirements.
Participate in architectural discussions and contribute to future platform design.
Work collaboratively within Agile/Scrum teams.
Develop unit, integration, and acceptance tests following Test-Driven Development (TDD) principles.
Collaborate with QA teams to define and implement acceptance testing strategies.
Support CI/CD pipelines and improve deployment automation.
Provide Level III production support and troubleshooting.
Partner with business users, platform teams, and technology stakeholders.
Mentor junior developers and contribute to engineering best practices.

Required Skills & Experience:

Technical Skills:

Strong Python development experience.
Expertise in Object-Oriented Programming (OOP).
Experience building REST APIs and distributed systems.
Hands-on experience developing Microservices architectures.
Experience working with large-scale datasets.
Strong understanding of software design patterns and system architecture.
Experience with Unit Testing, Integration Testing, and Acceptance Testing.
Familiarity with CI/CD pipelines and deployment automation.
Experience with Agile/Scrum methodologies.

Preferred Experience:

Equity Derivatives or Capital Markets domain experience.
Front Office trading systems exposure.
Low-latency/high-performance application development.
Experience with cloud-native architectures and containerization.
Experience mentoring developers and driving technical design.

Soft Skills:

Strong communication and stakeholder management skills.
Self-starter with proactive mindset.
Ability to drive technical discussions and architecture decisions.
Strong problem-solving and analytical skills.

Apply About employer

More about this job

Responsibilities

Design, develop, and support Python-based server-side applications, REST APIs, and scalable microservices for Equity Derivatives pre-trade solutions. Contribute to architecture and platform design, testing, CI/CD improvements, production support, and collaboration with business and technology teams while mentoring junior developers.

Requirements

Requires strong Python development skills, expertise in object-oriented programming, and experience building REST APIs, microservices, distributed systems, and applications handling large datasets. Candidates should also have knowledge of software architecture, testing, CI/CD, and Agile/Scrum; Equity Derivatives, Front Office, low-latency, cloud-native, and mentoring experience are preferred.

Skills

Python
Object-Oriented Programming
REST APIs
Microservices
Distributed Systems
Large-Scale Datasets
Software Design Patterns
System Architecture
Unit Testing
Integration Testing
Acceptance Testing
Test-Driven Development
CI/CD
Agile/Scrum
Equity Derivatives
Low-Latency Application Development

Visa sponsorship

Not detected in the job text

Keywords

Python
Equity Derivatives
Capital Markets
Pre-Trade Solutions
Front Office Trading Systems
REST APIs
Microservices
Distributed Systems
Low-Latency Systems
Large-Scale Datasets
Object-Oriented Programming
Software Design Patterns
System Architecture
Unit Testing
Integration Testing
Acceptance Testing
Test-Driven Development
CI/CD
Deployment Automation
Agile
Scrum
Cloud-Native Architecture
Containerization
Production Support
Mentoring

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