5,691+ Java React Developer React Jobs in Mississauga, 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

Senior Software Engineer Applied Gen AI Engineering

Staff Generative AI Engineer Location: Mississauga, Ontario, Canada (Hybrid)Job Overview We are pioneering the future of enterprise operations with innovative technology. Our COO-Technology Engineering and Architecture capability is focused on architecting best‑in‑class solutions, driving end‑to‑end tr ...

Solution Architect, Power Platform & D365

Job Details What do you think of when you hear the name MNP? Most likely tax and accounting, but as one of Canada’s largest consulting organizations, we’re so much more! We’re also serious about technology.Description Make an impact with our Digital Solutions team as a Solution Architect, Power Platfor ...

Senior Product Security Engineer

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. Affirm values information security as a critical part of the company’s continued success. Our mission is to make information s ...

Senior Workflow and Microservices Lead – Vice President

We are seeking a highly skilled and experienced Senior Workflow and Microservices Lead to join our dynamic team with a proven track record of successfully leading and delivering complex technology projects. The successful candidate will be instrumental in designing, developing, and maintaining robust, scal ...

Senior Vice President, Engineering Excellence NAM

Are you a seasoned technologist who still loves to code, but also has the rare gift of inspiring engineers and transforming how entire organizations build software? At Citi, we're looking for a leader who sits at the intersection of technical mastery and cultural change. This isn't a role for someone who w ...

AI and Application Development Engineer Vice President

## AI and Application Development Engineer - Vice PresidentApplyremote type: Hybridlocations: Mississauga Ontario Canadatime type: Full timeposted on: Posted Todaytime left to apply: End Date: July 17, 2026 (28 days left to apply)job requisition id: The Applications Development Technology Lead Analy ...

AI and Application Development Engineer Vice President

The Applications Development Technology Lead Analyst is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming ac ...

Senior Product Security Engineer

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. Affirm values information security as a critical part of the company’s continued success. Our mission is to make information s ...

Senior Product Security Engineer

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. Affirm values information security as a critical part of the company’s continued success. Our mission is to make information s ...

Senior Vice President, Engineering Excellence NAM

Are you a seasoned technologist who still loves to code, but also has the rare gift of inspiring engineers and transforming how entire organizations build software? At Citi, we’re looking for a leader who sits at the intersection of technical mastery and cultural change. This isn’t a role for someone who wants t ...

Senior Qa Engineer (Mississauga)

Senior QA Engineer The new role of the Senior QA Engineer will lead the design and delivery of automated testing solutions that protect the quality, reliability, and performance of Rexall’s digital and enterprise systems. The Senior QA Engineer owns the enterprise-wide automation strategy across m ...

Senior Software Engineer Applied Gen AI Engineering

Staff Generative AI Engineer Location: Mississauga, Ontario, Canada (Hybrid) Job Overview We are pioneering the future of enterprise operations with innovative technology. Our COO-Technology Engineering and Architecture capability is focused on architecting best‑in‑class solutio ...

Senior Vice President, Engineering Excellence NAM

Are you a seasoned technologist who still loves to code, but also has the rare gift of inspiring engineers and transforming how entire organizations build software? At Citi, we're looking for a leader who sits at the intersection of technical mastery and cultural change. This isn't a role for someone who w ...

AI and Application Development Engineer Vice President

## AI and Application Development Engineer - Vice PresidentApplyremote type:Hybridlocations:Mississauga Ontario Canadatime type:Full timeposted on:Posted Todaytime left to apply:End Date: July 17, 2026 (28 days left to apply)job requisition id: The Appl ...

Salesforce Solution Architect, Service Cloud

Salesforce Solution Architect, Service Cloud Join to apply for the Salesforce Solution Architect, Service Cloud role at NeuraFlash Overview At NeuraFlash, part of Accenture, we are redefining the future of business through AI and groundbreaking technologies like ...

Sr Data engineer Spark, Scala required

Job Title – Data engineer – Spark + Scala Required About the role As a Spark Scala Developer, you will make an impact by designing, developing, and supporting batch data processing pipelines using Apache Spark on Google Cloud Platform (GCP). You will be a valued member of the data engin ...

Senior Backend Engineer (AWS)

Senior Backend Engineer (AWS) Join to apply for the Senior Backend Engineer (AWS) role at Lumenalta As a Senior Backend Engineer at Lumenalta, you will design and implement robust backend systems, ensuring our applications are secure, scalable, and efficient. You will be r ...

Client Implementation Specialist (2+ yrs exp. customer facing, billing/revenue software req.)

Client Implementation Specialist (2+ yrs exp. customer-facing, billing/revenue software req.) Join to apply for the Client Implementation Specialist (2+ yrs exp. customer-facing, billing/revenue software req.) role at #twiceasnice Recruiting Client Implemen ...

Vice President, Purchasing

Location: Mississauga, Ontario – Hybrid (3 days/week in office) Company: Mattamy Homes (Canada) Department: Purchasing, GTA Low Rise Division Employment Type: Full-Time Reports to: Senior Vice President, Operations, GTA Low Rise Division ...

Staff Site Reliability Engineer, Database

Overview Who We Are: Alpaca is a US-headquartered self-clearing broker-dealer and brokerage infrastructure for stocks, ETFs, options, crypto, fixed income, 24/5 trading, and more. Our recent Series D funding round brought our total investment to over $320 million, fueling our ambitious vis ...

Head of Product

The Opportunity A top-performing Layer 1 blockchain project—already a top 10 by TVL—is hiring a Head of Product to lead core product strategy across its protocol infrastructure, DeFi stack, and user-facing applications. This is a rare opportunity to take the reins on a suite o ...

Oracle Hyperion Consultant(26 18904)

Russell Tobin & Associates is hiring on behalf of one of its esteemed clients. Job ID: #: Job Title: Oracle Hyperion ConsultantLocation: Toronto , ON (Onsite)Duration: 4 Months (possible extension)Client: Public SectorPay Rate: ...

Investment Director(AI)

Investment Director – AI Location: Global / Remote YZi Labs is investing in the next generation of transformative technologies. We partner with exceptional founders building category-defining companies and believe artificial intelligence will fundamentally reshape indu ...

Vice President, Purchasing

Location: Mississauga, Ontario – Hybrid (3 days/week in office) Company: Mattamy Homes (Canada) Department: Purchasing, GTA Low Rise Division Employment Type: Full-Time Reports to: Senior Vice President, Operations, GTA Low Rise Division ...

Senior Security Operations Engineer

Who are we? Our mission is to scale intelligence to serve humanity. We’re training and deploying frontier models for developers and enterprises who are building AI systems to power magical experiences like content generation, semantic search, RAG, and agents. We believe that our work is instrumen ...

Vice President, Purchasing

Location: Mississauga, Ontario – Hybrid (3 days/week in office) Company: Mattamy Homes (Canada) Department: Purchasing, GTA Low Rise Division Employment Type: Full-Time Reports to: Senior Vice President, Operations, GTA Low Rise Division ...

Senior Backend Engineer (AWS)

Senior Backend Engineer (AWS) As a Senior Backend Engineer at Lumenalta, you will design and implement robust backend systems, ensuring our applications are secure, scalable, and efficient. You will be responsible for working closely with DevOps and frontend teams to deliver high-performance appl ...

ETL Data Engineer Assistant Vice President

The ETL Data Engineer is responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities. **R ...

AI and Application Development Engineer Assistant Vice President

We are seeking a highly motivated and skilled Senior Software Engineer to join our innovative team. This role offers a unique opportunity to blend traditional **backend development expertise with emerging AI technologies. The ideal candidate will be responsible for designing, developing, and deploying high-perf ...

Applications Development Sr Programmer Analyst

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applic ...

AI and Application Development Engineer Assistant Vice President

We are seeking a highly motivated and skilled Senior Software Engineer to join our innovative team. This role offers a unique opportunity to blend traditional **backend development expertise with emerging AI technologies.** The ideal candidate will be responsible for **designing, developing, and deploying hig ...

Architecte principal, IA agentique

Nous recherchons un architecte principal d’agents d’IA visionnaire et pratique pour diriger la conception stratégique, le développement et le déploiement d’agents d’IA autonomes de prochaine génération et de solutions d’IA d’entreprise. Dans ce rôle, vous ferez le pont entre les concepts d’intelligence art ...

Solution Architect, Power Platform & D365

Job Details What do you think of when you hear the name MNP? Most likely tax and accounting, but as one of Canada’s largest consulting organizations, we’re so much more! We’re also serious about technology. Description Make an impact with our Digital Solutions team as a ...

Non Functional Testing Engineer

Team Context The Prime Services horizontal team is a critical component of our engineering organization, focusing on delivering robust and high-performance solutions tailored to the unique demands of Prime Services applications. Within this structure, the Non-functional team acts as a horizontal g ...

Senior Vice President, Engineering Excellence NAM

Are you a seasoned technologist who still loves to code, but also has the rare gift of inspiring engineers and transforming how entire organizations build software? At Citi, we’re looking for a leader who sits at the intersection of technical mastery and cultural change. This isn’t a role for someone who w ...

Systems Integration Engineer – Software iSteer (Mississauga)

Systems integration engineer – software iSteer Inc. Job Details Location: Toronto, ON Salary: $ 89,000 annually Vacancies: 1 vacancy Employment Groups: Youth, Veterans of the Canadian Armed Forces, Visible minorities, ...

Automation Specialist

Actemium Toronto is an established leader in controls integration, project management, and engineering services for a wide range of clients in a variety of industries. The main industries we support include: Food & Beverage, Brewing, Life Sciences and Energy. This is a full-time permanent role reporting di ...

Lead AI Engineer, Banking Technology Senior Vice President

Role OverviewWe are seeking an AI‑first Lead AI Engineer to define, architect, and deliver enterprise‑scale AI solutions across Investment, Corporate, and Commercial Banking. This role combines deep hands‑on technical leadership with architectural ownership, driving the adoption of LLMs, agentic workfl ...

Lead AI Engineer, Banking Technology Senior Vice President

Role Overview We are seeking an AI‑first Lead AI Engineer to define, architect, and deliver enterprise‑scale AI solutions across Investment, Corporate, and Commercial Banking. This role combines deep hands‑on technical leadership with architectural ownership, driving the adoption of LLMs, agentic ...

Architecte principal, IA agentique

Nous recherchons un architecte principal d’agents d’IA visionnaire et pratique pour diriger la conception stratégique, le développement et le déploiement d’agents d’IA autonomes de prochaine génération et de solutions d’IA d’entreprise. Dans ce rôle, vous ferez le pont entre les concepts d’intelligence artificie ...

Senior Agentic AI Architect

At Bell, we do more than build world‑class networks, develop innovative services and create original multiplatform media content – we advance how Canadians connect with each other and the world.We are seeking a visionary and hands‑on Senior AI Agentic Architect to lead the strategic design, development ...

Lead AI Engineer, Banking Technology Senior Vice President

Role Overview We are seeking an AI‑first Lead AI Engineer to define, architect, and deliver enterprise‑scale AI solutions across Investment, Corporate, and Commercial Banking. This role combines deep hands‑on technical leadership with architectural ownership, driving the adoption of LLMs, agentic ...

Architecte principal, IA agentique

Nous recherchons un architecte principal d’agents d’IA visionnaire et pratique pour diriger la conception stratégique, le développement et le déploiement d’agents d’IA autonomes de prochaine génération et de solutions d’IA d’entreprise. Dans ce rôle, vous ferez le pont entre les concepts d’intelligence art ...

Lead AI Engineer, Banking Technology Senior Vice President

Role Overview We are seeking an AI‑first Lead AI Engineer to define, architect, and deliver enterprise‑scale AI solutions across Investment, Corporate, and Commercial Banking. This role combines deep hands‑on technical leadership with architectural ownership, driving the adoption of LLMs, agentic ...

Systems Integration Engineer – Software mississauga

Systems integration engineer – software iSteer Inc. Job Details Location: Toronto, ON Salary: $89,000 annually Vacancies: 1 Employment groups: Youth, Veterans of the Canadian Armed Forces, Visible minorities, Persons with disabilities, Indigeno ...

Senior Data Platform Engineer, Data Cloud

Location Ontario Employment Type Full time Location Type Remote Department R&D Data Products The engineering team at Chainalysis is inspired by solving the hardest technical challenges and creating products that build trust in cryptocu ...

Non Functional Testing Engineer

Team Context The Prime Services horizontal team is a critical component of our engineering organization, focusing on delivering robust and high-performance solutions tailored to the unique demands of Prime Services applications. Within this structure, the Non-functional team acts as a horizontal g ...

Senior Product Security Engineer

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.Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without an ...

🚀 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

    Java React Developer React Jobs in Mississauga Job Search Guide, Trends and Insights