680,139+ 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

Senior Water/Wastewater Conveyance Engineer (Design Lead)

We are currently looking for a Senior Water/Wastewater Conveyance Engineer (Design Lead) to join our Toronto office and take part in exciting and engaging water infrastructure projects of varying size and complexity.You will have the chance to work on key infrastructure including:* Large and small di ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications/ Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications/ Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications/ Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications /Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Ingénieur principal des applications/ Lead Application Engineer

**Job Description Summary**L'ingénieur principal des applications est un leader établi au sein de son équipe d'ingénierie respective. Ils guideront la stratégie d'affaires grâce à une compréhension technique et économique détaillée du marché et prennent l'initiative de motiver les dirigeants d'entreprise à f ...

Lead Environmental Engineer or Geoscientist Contaminated Sites

**What if you could redefine what's possible?** With us, you can. You want Purpose. Growth. Opportunity. People who get it.We are the home of ambitious, passionate, and innovative world shapers.With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global m ...

Lead Environmental Engineer or Geoscientist Contaminated Sites

**What if you could redefine what's possible?** With us, you can. You want Purpose. Growth. Opportunity. People who get it.We are the home of ambitious, passionate, and innovative world shapers.With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global m ...

Citi's Lead AI Engineer for Banking Innovation

Drive innovation in banking as Citi's Lead AI Engineer in Mississauga, Ontario. Focus on implementing cutting-edge AI solutions to optimize processes and enhance compliance.In the role of Lead AI Engineer, Senior Vice President at Citi, you will be at the forefront of AI technologies that transform banking o ...

Lead EWIS Integration Engineer at ALTEN Canada

Become a Lead EWIS Integration Engineer with ALTEN Canada, focusing on aerospace and electrical systems integration. Work in a hybrid model from Mirabel, QC.This full-time opportunity involves leading key integration projects within a major aerospace program. You will utilize CATIA for 3D harness design and ...

Lead Mine Engineer for Soft Rock Mining

Compass Minerals seeks a Senior Mine Engineer in Goderich, Ontario, to lead advancements in underground soft rock mining. This full-time position offers a unique opportunity to innovate and drive efficiencies.Operating within a robust team, the Senior Mine Engineer will work closely with various departments ...

Lead Engineer for API and Infrastructure Development

Take charge as Lead Engineer, focusing on API and cloud infrastructure for search platforms. Drive the design of robust management frameworks and enhance self-service capabilities for clients.This senior role blends technical leadership with hands-on engineering. You will design the API control plane a ...

Lead EWIS Integration Engineer at ALTEN Canada

Become a Lead EWIS Integration Engineer with ALTEN Canada, focusing on aerospace and electrical systems integration. Work in a hybrid model from Mirabel, QC.This full-time opportunity involves leading key integration projects within a major aerospace program. You will utilize CATIA for 3D harness desig ...

Lead Maintenance Engineer On Site Regina Position

Join the Co-op Refinery Complex in Regina, SK, as a Lead Maintenance Engineer. This permanent position focuses on delivering solutions in maintenance engineering while supporting junior engineers in a dynamic setting.In this role, you will lead engineering tasks of varying complexity, including trouble ...

Citi's Lead AI Engineer for Banking Innovation

Drive innovation in banking as Citi's Lead AI Engineer in Mississauga, Ontario. Focus on implementing cutting-edge AI solutions to optimize processes and enhance compliance.In the role of Lead AI Engineer, Senior Vice President at Citi, you will be at the forefront of AI technologies that transform ban ...

Lead Full Stack Engineer at Stan AI

Become the Engineering Team Lead at Stan AI, guiding an agile team in creating AI-enhanced property management software. This role demands hands-on development and inspiring leadership within a cutting-edge environment.As the lead for your team of 2-3 engineers, you'll play a vital part in both coding and ma ...

Lead AI/ML Engineer in Clinical Intelligence

Join GenTraceDx as a Senior AI/ML Engineer to innovate clinical intelligence systems that integrate genomic and clinical data. This position offers flexible work options, either remote or on-site in Canada or the U.S.In this senior role, you will lead the development of AI systems that interpret data in real ...

Lead Quality Engineer Modern Test Automation & AI

For additional information, please review .The IT Quality Tech Lead Analyst is a mid-level position responsible for hands- on implementation of AI driven test automation inclusive of CICD and modern techniques in testing. The overall objective of this role is to ensure quality delivery of applications through AI ...

Lead AI/ML Engineer in Clinical Intelligence

Join GenTraceDx as a Senior AI/ML Engineer to innovate clinical intelligence systems that integrate genomic and clinical data. This position offers flexible work options, either remote or on-site in Canada or the U.S.In this senior role, you will lead the development of AI systems that interpret data i ...

Lead Full Stack Engineer at Stan AI

Become the Engineering Team Lead at Stan AI, guiding an agile team in creating AI-enhanced property management software. This role demands hands-on development and inspiring leadership within a cutting-edge environment.As the lead for your team of 2-3 engineers, you'll play a vital part in both coding ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Lead Data Engineer, Cloud Platforms at Citco

Advance your career as a Lead Data Engineer at Citco, specializing in Databricks and cloud data solutions. Help shape the future of data engineering in a collaborative environment.You will manage and lead a team of data engineers at Citco, focusing on developing and optimizing data platforms that drive busin ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Senior Tailings Engineer Lead TSF Design (Remote)

A leading engineering consulting firm in Quebec is looking for an experienced engineer specializing in mine tailings management. The successful candidate will contribute to complex projects, providing technical leadership and developing business opportunities. Applicants should have a Master's degree in Civil or ...

Lead Engineer for AI Systems at Upwork

Enhance data-driven decision-making as a Lead Engineer for AI Systems at Upwork in Toronto. Utilize advanced AI capabilities to drive business impact. In this role, you'll be part of the Data Platform & Services (DPS) team, designing and deploying agentic frameworks and natural language querying capabilities ...

Lead Engineer for AI Systems at Upwork

Enhance data-driven decision-making as a Lead Engineer for AI Systems at Upwork in Toronto. Utilize advanced AI capabilities to drive business impact.In this role, you'll be part of the Data Platform & Services (DPS) team, designing and deploying agentic frameworks and natural language querying capabil ...

Senior Engineer & Program Manager — Lead Complex Projects

A leading global manufacturer in Guelph, Ontario is seeking a Senior Program Manager to oversee complex projects from inception to completion. This role requires strategic planning, resource management, and cross-functional collaboration. The ideal candidate will have a Bachelor's degree in Engineering and at le ...

Lead Data Engineer, Cloud Platforms at Citco

Advance your career as a Lead Data Engineer at Citco, specializing in Databricks and cloud data solutions. Help shape the future of data engineering in a collaborative environment.You will manage and lead a team of data engineers at Citco, focusing on developing and optimizing data platforms that drive ...

Lead Signaling Engineer at WSP Rail & Transit

Step into a leading role at WSP as a Senior Signaling Engineer, specializing in the design of rail systems across Canada. Mentor junior engineers and drive innovative solutions.WSP is looking for a Senior Signaling Engineer to play a crucial technical role within the Rail & Transit team. You will guide ...

Lead AI Inference Engineer at Thomson Reuters

Join Thomson Reuters as a Lead AI Inference Engineer in a flexible hybrid setting. Enhance AI workloads and contribute to high-performance deployments across cloud environments.This senior role involves optimizing and scaling inference models for various applications. You will work closely with cross-f ...

Lead Full Stack Engineer for AI Systems

Shape the future of AI at Solink as a Lead Full Stack Engineer in a hybrid setting in Ottawa or Toronto, ON. This full-time role demands advanced engineering skills and leadership.In this impactful position, you will construct innovative AI-driven systems that enhance video security and operational eff ...

Lead Backend Engineer at Venn, B2B Fintech

Advance your career as a Lead Backend Engineer at Venn, the top B2B fintech in Canada. Take charge of building innovative banking solutions for modern entrepreneurs.In this role, you will lead the development of groundbreaking financial products tailored for Canadian businesses. With 5+ years of Java a ...

Senior Mechanical Engineer: Mining & Metals Equipment Lead

A leading engineering firm is seeking a Senior Mechanical Engineer based in Vancouver, British Columbia. The role requires extensive experience in mining, metals, and minerals with responsibilities ranging from project execution to vendor coordination. Candidates should possess strong leadership and problem-solv ...

Lead Senior Back End Engineer Legal Tech

Become a Lead Senior Back End Engineer at Proof's Mobile Team and drive innovation in legal tech. This fully remote role enables you to impact thousands of law firms across the US from Canada.Joining Proof, you'll lead the architecture and optimization of backend services while ensuring security and sc ...

Ingénieur·e de service principal·e / Lead Service Engineer

Job Description SummaryJoin our Service Engineering team in La Prairie as a Lead Service Engineer supporting high‑voltage electrical equipment across North America. In this role, you will provide technical support for maintenance, repair, troubleshooting, and service‑related requests, while working clo ...

Senior Lead Mechanical Engineer Mining and Metals

Senior Lead Mechanical Engineer - Mining and MetalsFull-timeEmployee Type: RegularWe have an exciting opportunity for a Senior Lead Mechanical Engineer – Mining and Metals who will join our Mechanical Resources Team. In collaboration with the greater Energy and Resources team, this ...

Lead Full Stack Engineer, Data Catalog Services

Work Location:Toronto, Ontario, CanadaHours:37.5Line of Business:Technology SolutionsPay Details:$125,500 - $154,000 CADThe pay details posted reflect a temporary market premium specific to this role that is reassessed annually.TD is committed to providing fair and equitable compensation opportunities to all col ...

🚀 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