598,313+ Lead Software Engineer Pythonreact Jobs in Canada — Top Companies Hiring June 2026

Professional job seekers finding Canada jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Software Engineer (Rust + Python) Surrey, BC

Whistler Alpha Research is a research arm of Whistler Trading, a systematic proprietary trading firm founded by industry leaders who previously built some of the most successful businesses in quantitative finance and high-frequency trading. We’re on a mission to build elite trading systems and infrastructu ...

Senior Software Engineer – Concurrency & UI (TypeScript)

A leading software company in Ontario seeks a Software Developer to join their Agile team working on the Concurrency project within Fusion. The role involves implementing features, maintaining code, and collaborating with remote teams. Ideal candidates should have over 5 years of experience in software developme ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Engineering team that builds systems powering affirm’s missi ...

Distributed Systems Software Engineer, Python / Go

Distributed Systems Software Engineer, Python / Go Join to apply for the Distributed Systems Software Engineer, Python / Go role at Canonical Distributed Systems Software Engineer, Python / Go 3 months ago Be among the first 25 applicants Joi ...

Distributed Systems Software Engineer, Python / Go

Distributed Systems Software Engineer, Python / Go Join to apply for the Distributed Systems Software Engineer, Python / Go role at Canonical Distributed Systems Software Engineer, Python / Go 3 months ago Be among the first 25 applicants Joi ...

Distributed Systems Software Engineer, Python / Go

Distributed Systems Software Engineer, Python / Go Join to apply for the Distributed Systems Software Engineer, Python / Go role at Canonical Distributed Systems Software Engineer, Python / Go 3 months ago Be among the first 25 applicants Joi ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our custome ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our custome ...

Senior Software Engineer, Backend (Merchant Advocacy)

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Merchant & Partner Lifecycle (M&PL) team is at the forefront of Affirm’s architectural transformation. We are addressing cr ...

Compiler Development Engineer for Quantum Software

Advance your career as a Compiler Development Engineer, addressing software challenges in quantum computing applications. Collaborate with a scientific team to enhance our unique compiler pipeline and features.Candidates should possess a Ph.D. in Computer Science or Physics, focusing on quantum computation o ...

Quantitative Software Engineer: ML, Math & LargeScale

A renowned consulting firm in Toronto is looking for a Quantitative Software Engineer to tackle complex computational challenges. Responsibilities include developing systems for machine learning and quantitative algorithms, while collaborating with research partners. Ideal candidates have a BS in Computer Scienc ...

Senior Rust Software Engineer in Security

We're looking for a Senior Rust Software Engineer to enhance a secure AI platform through hands-on development and architectural design. This onsite role focuses on building AWS SaaS systems.As a Senior Engineer, your expertise in Rust and DevOps will help shape secure AI solutions. Responsibilities in ...

Senior Software Engineer Content Management Systems

About lululemon lululemon is an innovative performance apparel company for yoga, running, training, and other athletic pursuits. Setting the bar in technical fabrics and functional design, we create transformational products and experiences that support people in moving, growing, connecting, and being well. We o ...

Sr. Software Engineer in Test (Python)

Department:Research & DevelopmentLocation:Canada-CHQ-Ontario-TorontoCompensation:$123,300 - $169,500 / yearThis full‑time, on‑site position is ideal for experienced Senior Software Development professionals with experience in automated testing. We are l ...

Full Stack Engineer for Software Development

Become a Full Stack Engineer responsible for developing software services that enhance user engagement across multiple platforms. Focus on creating scalable and secure technology solutions.This role requires a strong engineering background that includes working on critical software impacting millions. ...

Senior Software Engineer in AI Development

Drive innovation in AI technology as a Principal Software Engineer. Lead the evolution of scalable data extraction systems while fostering a collaborative and inclusive team atmosphere.In this senior role, you will own the architecture of a sophisticated data normalization platform. Bringing 15+ years ...

Quantitative Equity Technology, Infrastructure Software Engineer

Quantitative Equity Technology, Infrastructure Software Engineer We deliver foundational systems that shape the future of how technology is used in a top performing quantitative equity fund that manages over $75 billion in financial assets. This is a fantastic opportunity in the exciting intersection of finance ...

Senior Software Engineer for iOS SDK

Become a Senior Software Engineer specializing in iOS SDK development. Drive mobile app monitoring solutions and innovate using the latest Apple technologies in a hybrid work culture.This role is vital as you will develop the iOS SDK from core architecture through to delivery. You'll spearhead the intr ...

Software Engineer L3 for Cloud Solutions

Transform internal developer experiences as a Software Engineer L3. Focus on application development and cloud solutions while collaborating in a remote setting.This remote opportunity requires you to enhance existing software platforms and ensure efficiency through innovative tools and practices. In a ...

Backend Software Engineer High Volume Systems

Play a pivotal role as a Backend Software Engineer enhancing high-volume systems. Focus on backend services and complex queries in a hybrid work environment to transform user experiences for travel advisors.This Senior Developer role emphasizes backend work in a fast-paced, varied setting. From optimiz ...

Advanced Software Engineer for Distributed Systems

Explore an opportunity as an Advanced Software Engineer focusing on distributed systems architecture. Create scalable APIs and backend services that empower data-driven decision-making.In this role, you will design and implement robust systems capable of processing large volumes of data, utilizing tech ...

Experienced Software Engineer in Gaming Technology

Join our mission to enhance gaming as an Experienced Software Engineer. Collaborate in a hybrid setting to integrate AI solutions that improve player engagement and tool use.As part of the Infrastructure and Platform Services team, you will report directly to the Senior Director of Engineering. Your fo ...

Staff Software Engineer for AI Libraries

Elevate high-performance computing as a Senior Staff Software Development Engineer specializing in GPU libraries. Engage in collaborative efforts to optimize AI and machine learning resources at Exascale.This role focuses on improving math and communication libraries as part of the AMD ROCm platform. Y ...

A.I. Development and Agile Software Engineer

Become an Intermediate Software Developer, focusing on A.I. projects and web application design. Utilize your expertise in Ruby on Rails and familiarity with Python to tackle exciting challenges.This position allows you to join a collaborative team committed to continuous learning and professional grow ...

Senior Software Engineer in Payment Innovation

Shape the future of payment processing as a Senior Software Engineer. Drive high-impact projects focusing on scalability and performance of card issuing platforms, working remotely from Canada.This role centers on both technical ownership and hands-on coding, allowing you to influence the development o ...

Senior Software Engineer with AI Expertise

Become a Principal Software Engineer and transform insurance through AI. Manage core platform architecture and lead innovative engineering initiatives onsite with our expert team.This role emphasizes your ability to solve complex challenges while defining technical strategies that align with business g ...

C/C++ Software Engineer in Cybersecurity

Embark on a rewarding journey as a Software Engineer specializing in C/C++. Contribute to cutting-edge cybersecurity projects that protect users and data on a global scale.In this role, you'll be engaged in the complete software development lifecycle with a focus on C/C++ programming. A minimum of 2 ye ...

AI First Principal Software Engineer Role

Shape the future of software engineering as a Principal Engineer focused on AI-first development. This remote role empowers you to lead significant projects while fostering innovation across the organization.As a Principal Engineer, you will embed with product teams to drive technical initiatives in AI ...

Software QA Automation Engineer 3D/CAD

Advance your QA career as a Software QA Engineer focused on automation for 3D and CAD platforms in a remote role. Drive quality engineering initiatives and optimize test strategies.This position requires 3-5 years of experience testing complex interactive applications across multiple platforms. You wil ...

Staff Software Engineer I Stream Governance

Staff Software Engineer I - Stream Governance As a Staff Software Engineer for Stream Governance, you will be the technical lead for initiatives like Stream Catalog, Lineage, and Data Portal. You will architect complex, multi-tenant engineering systems from end-to-end and provide technical leadership for mission ...

Java Software Engineer with Agile Skills

Drive innovation as a Java Software Engineer with robust Agile skills. Work closely with product owners and development teams to implement high-performance features that meet business needs.You will play a critical role in gathering requirements and leading backlog coordination for feature development. ...

AI Driven Software Engineer for Integrations

Become an AI-Driven Software Engineer focusing on integrating innovative services for travelers. Utilize advanced AI tools to enhance integration workflows across multiple platforms.This high-ownership role on our Ancillaries squad demands expertise in facilitating connections with external partners. B ...

Senior Python Software Engineer (Data&Connectors)

DataRobot delivers AI that maximizes impact and minimizes business risk. Our platform and applications integrate into core business processes so teams can develop, deliver, and govern AI at scale. DataRobot empowers practitioners to deliver predictive and generative AI, and enables leaders to secure their AI ass ...

Agile Software Engineer for Innovative Solutions

Drive innovation as an Intermediate Software Engineer within a devoted Software Engineering team. Partake in a collaborative atmosphere focused on producing exceptional software for small businesses.In this role, you'll join a Scrum team led by the Software Engineering Manager, working on cutting-edge ...

Senior Software Engineer (Frameworks, JavaScript SDK)

About Sentry Bad software is everywhere, and we’re tired of it. Sentry is on a mission to help developers write better software faster so we can get back to enjoying technology.With more than $217 million in funding and 100,000+ organizations that believe we’re on to something, we're building performan ...

Software Engineer: Remote Role in Gaming

Become a part of a remote software team as a Software Engineer focused on game development. Engage in coding with Java, Spring, and more while enhancing system capabilities.This temporary role requires a skilled individual capable of handling tasks autonomously while managing existing systems. You will ...

Senior Software Engineer (Node, JavaScript SDK)

About Sentry Bad software is everywhere, and we’re tired of it. Sentry is on a mission to help developers write better software faster so we can get back to enjoying technology.With more than $217 million in funding and 100,000+ organizations that believe we’re on to something, we're building performan ...

Expert Software Engineer in Architecture Design

Lead innovative projects as an Expert Software Engineer specializing in Customer Communications Management. Focus on designing robust architectures and enhancing solutions using cutting-edge technologies.In this impactful role, you will coordinate with various stakeholders to understand business object ...

E commerce AI Software Development Engineer

Join as a Software Development Engineer focused on AI for e-commerce. Collaborate with seasoned engineers and product managers to drive innovation and create impactful solutions.This hands-on role encourages you to grow technical expertise and work closely with a dynamic team. You'll help design and im ...

Senior Software Engineer Full Stack Development

Step into the role of Senior Software Engineer, specializing in full stack development for our impactful iRound product. Drive innovation by employing advanced tools and methodologies to enhance patient experience solutions.In this senior position, you'll be tasked with designing and implementing robus ...

Embedded Software Engineer for Quantum Technologies

Take the lead as a Senior Embedded Software Developer, shaping the future of quantum technologies. Drive firmware development and optimize embedded systems centered on ARM Cortex-M architectures.In this pivotal role, you will design and implement control subsystems that enhance quantum sensing and comm ...

Senior Software Engineer Backend, Frontend & Cloud

A leading financial services company in Toronto is looking for a Principal Associate, Software Engineer. In this role, you will be responsible for backend and frontend development, utilizing programming languages like Java and Python. We offer a hybrid work environment and comprehensive benefits including mental ...

Senior Software Engineer — Tech Leader & Impact

A dynamic fintech company based in Canada seeks a Lead Software Engineer to drive technical excellence in their platform. This role emphasizes designing scalable microservices and leading cross-functional initiatives. Candidates should have over 8 years of experience in software engineering, proficiency in Golan ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our custome ...

Software Engineer Python Cloud graduate level

Canonical Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our custome ...

Senior Software Engineer, Cloud IaC & Automation

A leading fintech company is seeking a Senior Software Engineer on the Infrastructure Engineering team to innovate and enhance cloud-based solutions. You will design and optimize infrastructure tooling on AWS, focusing on safety and compliance. The ideal candidate has a Bachelor's degree in Computer Science and ...

Senior Software Engineer — Tech Leader & Impact

A dynamic fintech company based in Canada seeks a Lead Software Engineer to drive technical excellence in their platform. This role emphasizes designing scalable microservices and leading cross-functional initiatives. Candidates should have over 8 years of experience in software engineering, proficiency in Golan ...

Senior Software Engineer — Tech Leader & Impact

A dynamic fintech company based in Canada seeks a Lead Software Engineer to drive technical excellence in their platform. This role emphasizes designing scalable microservices and leading cross-functional initiatives. Candidates should have over 8 years of experience in software engineering, proficiency in Golan ...

Senior Software Engineer – Concurrency & UI (TypeScript)

A leading software company in Ontario seeks a Software Developer to join their Agile team working on the Concurrency project within Fusion. The role involves implementing features, maintaining code, and collaborating with remote teams. Ideal candidates should have over 5 years of experience in software developme ...

Senior Software Engineer, Backend (Growth Platform)

Senior Software Engineer, Backend (Growth Platform) Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Engineering team builds systems that power our mission. We b ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Lead Software Engineer Pythonreact Jobs in Canada Job Search Guide, Trends and Insights