165,165+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers 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

AI/ML Data Platform Lead — Scalable Pipelines, Equity

A technology startup is seeking a Data Platform Software Lead Engineer to drive the architecture underlying its AI/ML pipelines. In this role, you'll design and build reliable systems for data ingestion and processing, focusing on large-scale code and text datasets. The ideal candidate has over 8 years of experi ...

Principal Engineer, Cloud & Platform Architecture

A leading financial institution in Canada is seeking a Distinguished Engineer to drive engineering excellence through innovation and mentorship. In this director equivalent role, you will articulate technical visions, decompose complex problems, and lead multiple projects. Candidates should possess over 10 years ...

AI/ML Data Platform Lead — Scalable Pipelines, Equity

A technology startup is seeking a Data Platform Software Lead Engineer to drive the architecture underlying its AI/ML pipelines. In this role, you'll design and build reliable systems for data ingestion and processing, focusing on large-scale code and text datasets. The ideal candidate has over 8 years of experi ...

Staff Security Engineer — AI & App Security Architect

A leading app developer in Toronto is seeking a Staff Security Engineer to lead the Application Security domain. You will define strategies, work on AI security, and enhance secure development practices. Ideal candidates should have over 10 years in Application Security, deep software engineering skills, and an ...

Principal Engineer, Cloud & Platform Architecture

A leading financial institution in Canada is seeking a Distinguished Engineer to drive engineering excellence through innovation and mentorship. In this director equivalent role, you will articulate technical visions, decompose complex problems, and lead multiple projects. Candidates should possess over 10 years ...

Principal Engineer, Cloud & Platform Architecture

A leading financial institution in Canada is seeking a Distinguished Engineer to drive engineering excellence through innovation and mentorship. In this director equivalent role, you will articulate technical visions, decompose complex problems, and lead multiple projects. Candidates should possess over 10 years ...

AI/ML Data Platform Lead — Scalable Pipelines, Equity

A technology startup is seeking a Data Platform Software Lead Engineer to drive the architecture underlying its AI/ML pipelines. In this role, you'll design and build reliable systems for data ingestion and processing, focusing on large-scale code and text datasets. The ideal candidate has over 8 years of experi ...

Centric Operations Lead (Program Lead)

About the Role CentricOps is the operational function that serves Product, Experience (Design), and Engineering as one unified team. It is not a representative body for any single discipline — it works across all three, removing friction, building culture, and creating the conditions for PXE to d ...

Centric Operations Lead (Program Lead)

About the Role CentricOps is the operational function that serves Product, Experience (Design), and Engineering as one unified team. It is not a representative body for any single discipline — it works across all three, removing friction, building culture, and creating the conditions for PXE to d ...

AI Native Solutions Engineer, Finance Transformation & Solution Architecture

What is the opportunity? We are seeking a highly skilled and experienced Lead Linux Engineer to spearhead the migration of our core systems from a traditional mainframe (z/OS, DB2, COBOL) environment to a modern, scalable, and flexible Linux‑based platform. We are building a new stack that embraces ...

ETL Developer (Public sector)

Job DescriptionWe are seeking a highly skilled Software Developer with ETL implementation experience to join our public sector client's data engineering team. This role is critical in ensuring the accuracy, reliability, and performance of our data pipelines and analytics infrastructure built ...

Full Stack Senior Engineer Capital One Canada

Lead technology innovation as a Senior Staff Software Engineer at Capital One Canada in Toronto. Focus on designing secure architectures that drive business success and meet regulatory standards.In this full-stack role, you'll oversee the architectural solutions that align with Capital One Canada’s objective ...

Movable Ink Product Security Engineering Role

Join Movable Ink as a Product Security Engineer, focusing on securing codebases and fostering safe development practices. Your expertise will directly impact our software delivery and security strategy.In this role, you will utilize your knowledge in application security to implement and maintain various tes ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Principal Engineer for Fintech Solutions

Elevate technology solutions at Synpulse as a Principal Engineer specializing in fintech. This hybrid role entails designing client-focused software solutions while addressing technical inquiries.In this leadership position, you will utilize over 10 years of experience in technology project delivery to creat ...

Senior QA Engineer in Toronto

Advance your career with NetBrain as a Senior QA Engineer located in Toronto, ON, focusing on network automation. Lead projects while working alongside a collaborative team of professionals.In this senior role at NetBrain, you will oversee junior QA engineers and create comprehensive test plans. Your experti ...

Machine Learning Architecture Leader

Lead transformative AI initiatives as a Principal Machine Learning Engineer with a global networking powerhouse. Drive innovation in Generative AI, AI Agents, and complex model architectures.In this pivotal role, you will define the ML strategy, architect systems for real-time learning, and mentor engineerin ...

Senior Research Engineer in Machine Learning

Step into the role of Lead Research Engineer at Thomson Reuters, where you will leverage AI and machine learning to optimize operations for professionals globally. This hybrid position emphasizes innovation and collaboration across technical teams.The ideal candidate holds a Bachelor of Science in Computer S ...

Waabi Senior Engineer in AI Development

Join Waabi as a Senior Software Engineer and lead the transformation of transportation using AI. Collaborate with engineers and researchers to create efficient solutions for autonomous vehicles.Waabi is at the forefront of Physical AI, seeking engineers dedicated to scalable self-driving technology. In this ...

Product Engineering Internship Dayforce

Step into the future of technology with Dayforce as a Product Engineer Intern in Toronto. This hybrid internship emphasizes AI-driven software development and large data visualization.In this role, you will work on optimizing solutions for complex data processing while collaborating globally. You’ll gain rea ...

Backend Engineer for Innovative Legal Solutions

Drive technological advancements as a Backend Engineer at EvenUp, improving legal outcomes for personal injury cases. This hybrid role centers on user-focused software integrations.As part of the Cases Product Engineering team, you'll lead initiatives to enhance our integration engine, collaborating with eng ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your ...

Machine Learning Architecture Leader

Lead transformative AI initiatives as a Principal Machine Learning Engineer with a global networking powerhouse. Drive innovation in Generative AI, AI Agents, and complex model architectures.In this pivotal role, you will define the ML strategy, architect systems for real-time learning, and mentor engi ...

Principal Engineer for Fintech Solutions

Elevate technology solutions at Synpulse as a Principal Engineer specializing in fintech. This hybrid role entails designing client-focused software solutions while addressing technical inquiries.In this leadership position, you will utilize over 10 years of experience in technology project delivery to ...

Samsara Senior Staff Engineer Innovation Focus

Join Samsara as a Senior Staff Software Engineer and impact industries worldwide. Your role will be vital in shaping innovative solutions that improve safety, efficiency, and sustainability.At Samsara, you’ll blend your engineering expertise with an entrepreneurial spirit to lead initiatives in our Inn ...

Waabi Senior Engineer in AI Development

Join Waabi as a Senior Software Engineer and lead the transformation of transportation using AI. Collaborate with engineers and researchers to create efficient solutions for autonomous vehicles.Waabi is at the forefront of Physical AI, seeking engineers dedicated to scalable self-driving technology. In ...

Full Stack Senior Engineer Capital One Canada

Lead technology innovation as a Senior Staff Software Engineer at Capital One Canada in Toronto. Focus on designing secure architectures that drive business success and meet regulatory standards.In this full-stack role, you'll oversee the architectural solutions that align with Capital One Canada’s objective ...

Senior QA Engineer in Toronto

Advance your career with NetBrain as a Senior QA Engineer located in Toronto, ON, focusing on network automation. Lead projects while working alongside a collaborative team of professionals.In this senior role at NetBrain, you will oversee junior QA engineers and create comprehensive test plans. Your experti ...

Senior QA Engineer in Toronto

Advance your career with NetBrain as a Senior QA Engineer located in Toronto, ON, focusing on network automation. Lead projects while working alongside a collaborative team of professionals.In this senior role at NetBrain, you will oversee junior QA engineers and create comprehensive test plans. Your e ...

Principal Engineer In Financial Technology Toronto

Drive technology excellence as a Principal Engineer at Synpulse, focusing on the fintech sector. Embrace a hybrid work model while delivering robust solutions for clients in finance. In this leadership role, you are responsible for designing comprehensive client solutions and navigating complex technical queries ...

Product Engineering Internship Dayforce

Step into the future of technology with Dayforce as a Product Engineer Intern in Toronto. This hybrid internship emphasizes AI-driven software development and large data visualization.In this role, you will work on optimizing solutions for complex data processing while collaborating globally. You’ll ga ...

Full Stack Engineer for Digital Marketplace

Become a pivotal Full Stack Engineer in a leading digital marketplace. Harness your expertise with .NET, React, and AWS to reinvent vehicle remarketing.In this senior engineering role, you will build scalable back-end applications while engaging with front-end technologies. Your strong grasp of databas ...

Embedded Systems Engineer Rivian VW Group

Shape the connected future as an Embedded Systems Engineer with Rivian and Volkswagen Group Technologies, focusing on infotainment solutions. Elevate user interaction through innovative software technologies.Join a forward-thinking team where your contributions will directly impact the design and funct ...

Advanced DevOps Engineer Opportunity

Shape the future at ZoomInfo as a Senior DevOps Engineer focusing on software-centric infrastructure and cloud solutions. You'll thrive in a forward-thinking environment that values teamwork and communication.As a member of the Platform Engineering team, you’ll drive end-to-end ownership of vital proje ...

Remote Kubernetes Staff Engineer Role at Marqeta

Transform Marqeta's Kubernetes operations by joining as a Staff Software Engineer, working remotely from anywhere in the USA. You'll play a crucial role in building systems that manage millions of daily transactions.In this position, you will design and maintain scalable Kubernetes infrastructure while leadi ...

Waabi Senior Engineer in AI Development

Join Waabi as a Senior Software Engineer and lead the transformation of transportation using AI. Collaborate with engineers and researchers to create efficient solutions for autonomous vehicles.Waabi is at the forefront of Physical AI, seeking engineers dedicated to scalable self-driving technology. In this ...

Senior Research Engineer in Machine Learning

Step into the role of Lead Research Engineer at Thomson Reuters, where you will leverage AI and machine learning to optimize operations for professionals globally. This hybrid position emphasizes innovation and collaboration across technical teams.The ideal candidate holds a Bachelor of Science in Comp ...

Principal Engineer for Fintech Solutions

Elevate technology solutions at Synpulse as a Principal Engineer specializing in fintech. This hybrid role entails designing client-focused software solutions while addressing technical inquiries.In this leadership position, you will utilize over 10 years of experience in technology project delivery to creat ...

Backend Engineer for Innovative Legal Solutions

Drive technological advancements as a Backend Engineer at EvenUp, improving legal outcomes for personal injury cases. This hybrid role centers on user-focused software integrations.As part of the Cases Product Engineering team, you'll lead initiatives to enhance our integration engine, collaborating wi ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Machine Learning Architecture Leader

Lead transformative AI initiatives as a Principal Machine Learning Engineer with a global networking powerhouse. Drive innovation in Generative AI, AI Agents, and complex model architectures.In this pivotal role, you will define the ML strategy, architect systems for real-time learning, and mentor engineerin ...

Senior Engineer in Home Care Tech

Drive change in home care as a Senior Software Engineer. Architect scalable systems that enhance caregiver engagement and operational efficiency using cutting-edge technology.You'll join a talented team focused on solving the urgent caregiver crisis while shaping product and engineering standards. Your exper ...

Forward Deployed Engineering Lead Role

Become a Forward Deployed Engineering Lead at Banyan Software, contributing to application modernization and team development from home in the USA or Canada. Elevate practices by embedding in agile teams and promoting cloud-native adoption.As an exemplary full-stack engineer, you will interface with th ...

Senior QA Engineer in Toronto

Advance your career with NetBrain as a Senior QA Engineer located in Toronto, ON, focusing on network automation. Lead projects while working alongside a collaborative team of professionals.In this senior role at NetBrain, you will oversee junior QA engineers and create comprehensive test plans. Your experti ...

🚀 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 Toronto Job Search Guide, Trends and Insights