5,692+ Java React Developer React Jobs in Mississauga, Canada — Local Employers Hiring June 2026

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Cloud Based GenAI Delivery Architect

Transform AI delivery with Capgemini as a GenAI Architect based in Mississauga, ON. Design and execute enterprise AI solutions using innovative agent-based architectures.In this pivotal role, you will leverage your experience in Agentic AI to facilitate the development of advanced multi-agent systems. Your r ...

AI Native Engineer with Cloud Solutions

Pursue your expertise as an AI Native Engineer in Mississauga, focusing on building enterprise-ready cloud-native solutions. Utilize your deep knowledge in designing and deploying agentic systems to drive results.In this on-site role three days a week, you will leverage your experience to design AI agents, i ...

Engineering Excellence Leader at Citi

Step into a leadership role at Citi as an Engineering Excellence Leader, where you will inspire change and enhance software development culture. This hands-on position requires technical prowess.Located in one of the world’s most complex financial organizations, you will be an influential figure advocating f ...

Lead Data Engineer Innovating Healthcare Data Architecture

Drive data engineering excellence as a Staff Data Engineer and help transform healthcare data practices. Spearhead architecture optimizations and educate teams in a fully remote role.As a leader in this position, you'll focus on creating robust data solutions across complex systems. With a robust background ...

Cloud Based GenAI Delivery Architect

Transform AI delivery with Capgemini as a GenAI Architect based in Mississauga, ON. Design and execute enterprise AI solutions using innovative agent-based architectures.In this pivotal role, you will leverage your experience in Agentic AI to facilitate the development of advanced multi-agent systems. Your r ...

AI Driven Full Stack Engineer Citi

Shape the landscape of Corporate Banking at Citi as a Senior Full-Stack Engineer. Utilize AI tools to enhance your delivery of sophisticated web applications with a focus on quality and leadership.This role demands a pioneering approach, blending technical ownership with mentorship in a dynamic environment. ...

AI Native Engineer with Cloud Solutions

Pursue your expertise as an AI Native Engineer in Mississauga, focusing on building enterprise-ready cloud-native solutions. Utilize your deep knowledge in designing and deploying agentic systems to drive results.In this on-site role three days a week, you will leverage your experience to design AI age ...

AI Native Engineer with Cloud Solutions

Pursue your expertise as an AI Native Engineer in Mississauga, focusing on building enterprise-ready cloud-native solutions. Utilize your deep knowledge in designing and deploying agentic systems to drive results.In this on-site role three days a week, you will leverage your experience to design AI agents, i ...

Senior Lead Data Engineer Role

Become a Senior Lead Data Engineer at Bell, where your technical direction influences AI development and data product efficacy. Embrace a hands-on leadership role while setting high engineering standards.This role seeks an experienced lead with a strong background in data engineering, preferably with 7+ year ...

Experienced Pega Consultant Wanted

Shape the future of Pega solutions as a Lead Consultant with Infosys in Mississauga, Canada, emphasizing architecture and design. Deliver impact through effective consulting and technical leadership.As a Lead Pega Consultant, you will engage directly in identifying client challenges and architecting innovati ...

Pega Consultant with Technical Leadership

Join Infosys as a Pega Lead Consultant in Mississauga, Canada, focusing on solution architecture and technical leadership. Implement strategic consulting solutions to meet evolving client demands.This position encompasses leading the consulting team in designing complex Pega applications and aligning them wi ...

Citi Workflow Lead with Microservices Expertise

Step into the role of Workflow Lead at Citi, where you'll utilize microservices for innovative workflow solutions. Help shape the future of banking technology with your expertise.As a Workflow Lead, you will spearhead the architectural evolution of case management systems at Citi. Your six-plus years o ...

Engineering Excellence Leader at Citi

Step into a leadership role at Citi as an Engineering Excellence Leader, where you will inspire change and enhance software development culture. This hands-on position requires technical prowess.Located in one of the world’s most complex financial organizations, you will be an influential figure advocating f ...

AI Development Engineer Vice President at Citi

Join Citi as a Vice President in AI Application Development, working in a hybrid environment from Mississauga, Ontario. This senior position combines your backend development experience with cutting-edge AI technologies to create exceptional applications.In this role, you will be responsible for establ ...

Citi Workflow Lead with Microservices Expertise

Step into the role of Workflow Lead at Citi, where you'll utilize microservices for innovative workflow solutions. Help shape the future of banking technology with your expertise.As a Workflow Lead, you will spearhead the architectural evolution of case management systems at Citi. Your six-plus years of hand ...

Citi Workflow Lead with Microservices Expertise

Step into the role of Workflow Lead at Citi, where you'll utilize microservices for innovative workflow solutions. Help shape the future of banking technology with your expertise.As a Workflow Lead, you will spearhead the architectural evolution of case management systems at Citi. Your six-plus years of hand ...

Transformative Engineering Leader at Citi

Shape the future of engineering at Citi as a transformative leader who inspires cultural change and improves delivery excellence. Engage actively with engineering teams while embedding best practices.As a Senior Vice President, you'll orchestrate the shift towards a robust engineering culture and play a pivo ...

Senior Engineering Lead at Guidewire

Join Guidewire as a Senior Engineering Manager, leading teams focused on innovative cloud solutions. Leverage your expertise in SaaS and AI to enhance engineering outcomes in a flexible setting.This role within the APD organization involves leading multiple engineering teams dedicated to delivering scalable ...

Senior Software Quality Assurance Engineer

Elevate software quality at Zebra Technologies in the role of a Senior Software Quality Assurance Engineer, requiring 10+ years of experience. Drive assurance for innovative technologies in a hybrid environment.This role emphasizes the evaluation and improvement of software quality metrics across Zebra's mob ...

AI Development Engineer Vice President at Citi

Join Citi as a Vice President in AI Application Development, working in a hybrid environment from Mississauga, Ontario. This senior position combines your backend development experience with cutting-edge AI technologies to create exceptional applications.In this role, you will be responsible for establishing ...

Citi Fullstack Applications Senior Vice President

Drive forward-thinking solutions as the Fullstack Applications Senior Vice President at Citi, where your extensive software development experience translates into impactful leadership. Specialize in architecture and team management for enterprise systems.Citi is in search of a Fullstack Applications Senior V ...

Citi AI Application Development Engineer Senior Level

Become a part of Citi's innovative team as a Senior AI Application Development Engineer. Your role will integrate traditional coding with cutting-edge AI technologies!In this position, you'll design, develop, and deploy applications using Java, Spring Boot, and MongoDB. Focusing on AI Agents and Prompt Engin ...

Senior Backend Engineer for IBM Confluent

Empower data streaming at IBM Software as a Senior Backend Engineer, focusing on designing scalable, reliable backend services in a remote-capable setup across Canada.As a Senior Backend Engineer with Confluent, you'll leverage your deep expertise to build backend systems that are pivotal for our cloud-nativ ...

Citi Fullstack Applications Senior Vice President

Drive forward-thinking solutions as the Fullstack Applications Senior Vice President at Citi, where your extensive software development experience translates into impactful leadership. Specialize in architecture and team management for enterprise systems.Citi is in search of a Fullstack Applications Senior V ...

Citi Assistant VP Full Stack Programmer Analyst

Advance your career as an Assistant Vice President Full Stack Programmer Analyst at Citi. This role demands your expertise in creating and maintaining advanced application systems while collaborating with cross-functional teams.As part of the Applications Development team, you will leverage 5-8 years of expe ...

Lead Software Engineer at Citi Tech

Transform the landscape of global finance as a Lead Software Engineer with Citi's Tech team. Drive the design and implementation of automated platforms that set the standard in the industry.You will play a vital role within Markets Operations Technology focusing on margin and collateral improvements. This po ...

IBM Case Management and Workflow Lead

Become an integral part of IBM as our Case Management and Workflow Lead. Shape the development of innovative applications that drive business transformation and efficiency.We're seeking a skilled Workflow and Microservices Lead to enhance our case management systems. With your 6+ years of specialized experie ...

Quality Engineer – AI Applications Focus

Impact the future of technology as a Quality Engineer focusing on AI applications in a hybrid role based in Toronto. Your expertise will enhance product quality and user experience across intelligent platforms.Our Quality Engineering team seeks a creative and hands-on engineer to contribute to AI-driven test ...

Remote L&D Designer & eLearning Specialist

A leading staffing firm in Canada is seeking an experienced L&D Designer/Developer to lead the design and development of learning programs. This remote role requires 5+ years in Learning & Development and expertise in eLearning tools. Candidates will collaborate closely with vendors and stakeholders to deliver e ...

Remote Node Engineer (Mid Level) Build with Impact

A leading software solutions provider in Ontario is looking for a developer with at least 3 years of experience to join their fully remote team. This role requires the ability to create clean and testable code, along with serverless experience using AWS or Azure. Join a team that focuses on one project at a time ...

Senior Dynamics 365 CE Architect & Integrations

A leading energy solutions firm in Mississauga seeks a Senior Dynamics 365 CE Developer with extensive experience in Microsoft Dynamics 365. This role involves developing and customizing solutions, collaborating with architects and analysts, and improving the user experience through innovative integrations. Cand ...

Senior Dynamics 365 CE Architect & Integrations

A leading energy solutions firm in Mississauga seeks a Senior Dynamics 365 CE Developer with extensive experience in Microsoft Dynamics 365. This role involves developing and customizing solutions, collaborating with architects and analysts, and improving the user experience through innovative integrations. Cand ...

Staff Platform Engineer Infrastructure

A leading online education platform is hiring a Staff Infrastructure Engineer to provide technical leadership and direction on cloud and developer platforms. This role requires expertise in AWS, Kubernetes, and Infrastructure as Code, and is ideal for someone with a strong background in building production syste ...

AI Driven SaaS Engineer

A tech company specializing in SaaS solutions in Canada seeks a Modern Software Developer to enhance their applications utilizing AI technologies. The ideal candidate will design, develop, and maintain scalable software systems, collaborating with stakeholders to deliver value. Key requirements include strong ba ...

Senior Full Stack Big Data Engineer

A leading financial institution in Mississauga seeks an experienced applications developer to work closely with management teams on integrating functions and improving processes. The ideal candidate will have over 6 years of experience in full stack development with Big Data technologies. You will develop robust ...

Senior Ruby on Rails Engineer Remote Canada

A financial technology company seeks a Senior Full Stack Developer (RoR) to enhance product reliability and reduce technical debt. This remote, full-time position within Canada offers a salary of up to $140,000 CAD plus benefits. Candidates should have senior-level Ruby on Rails skills, strong SQL fluency, and e ...

Senior Dynamics 365 CE Architect & Integrations

A leading energy solutions firm in Mississauga seeks a Senior Dynamics 365 CE Developer with extensive experience in Microsoft Dynamics 365. This role involves developing and customizing solutions, collaborating with architects and analysts, and improving the user experience through innovative integrations. Cand ...

Senior DevOps Engineer: Cloud, Security & AI Ready

A leading nuclear innovation firm in Canada is seeking a Senior DevOps Developer to design and maintain secure cloud infrastructure. The role involves optimizing CI/CD pipelines and managing containerization efforts. You will work closely with engineering teams to implement DevSecOps best practices and ensure sy ...

Remote Junior Observability Engineer (Python/Go)

A leading open source software company is looking for a Junior Software Developer - Observability to join their remote team. The role involves developing a cloud-native monitoring stack and collaborating with a globally distributed team. Candidates should have strong skills in Python and a basic knowledge of Go. ...

Senior Full Stack Big Data Engineer

A leading financial institution in Mississauga seeks an experienced applications developer to work closely with management teams on integrating functions and improving processes. The ideal candidate will have over 6 years of experience in full stack development with Big Data technologies. You will develop robust ...

Python and Kubernetes Software Engineer Data, AI/ML & Analytics

Python and Kubernetes Software Engineer - Data, AI/ML & Analytics Get AI-powered advice on this job and more exclusive features. Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely u ...

Remote Junior Observability Engineer (Python/Go)

A pioneering tech firm is seeking a Junior developer to join their Observability team remotely in the EMEA or Americas regions. The role requires expertise in Python and some knowledge of Go, along with a Bachelor's degree in Computer Science or a related field. Candidates should be passionate about open source ...

Freelance AI Ready Open Source Web Commerce Partner

A tech-forward e-commerce solution company in Canada is seeking a freelance web developer to partner in building e-commerce sites using the Goofre platform. You will connect storefronts to the Unified Commerce Platform, enhancing your clients' capabilities with AI features. This role offers a chance to build a s ...

Staff Software Engineer, Communications: Secure Messaging AI

A growing health tech company in Metro Vancouver is seeking a Staff Software Developer to enhance their messaging solutions. This role involves delivering secure messaging workflows and raising technical standards within the team. Ideal candidates will have strong Ruby development experience and the ability to w ...

Senior MEAN Stack Engineer — Remote Property Tech

A global technology firm seeks a Remote Sr. Full Stack Developer to enhance a property management platform. The role demands proficiency in Angular 16+, Node.js, and TypeScript, alongside a solid grasp of RESTful APIs and NoSQL databases. You'll work collaboratively in a fast-paced environment, ensuring high-qua ...

Junior Observability Engineer Remote, Open Source Stack

A leading open source software company is seeking a Junior Software Developer for the Observability team. This remote role, based in Canada, involves developing a cloud-native monitoring stack using Python and Go. Responsibilities include writing and testing code, debugging issues, and collaborating with a distr ...

Senior Unreal Gameplay Programmer – Remote, AAA Games

A leading video game developer is seeking a Senior Unreal Gameplay Programmer to join their growing Engineering team. This role involves collaborating with designers and artists to create and iterate on gameplay features, while also writing robust code for long-term use. Ideal candidates will have a degree in Co ...

Remote Junior Observability Engineer (Python/Go)

A pioneering tech firm is seeking a Junior developer to join their Observability team remotely in the EMEA or Americas regions. The role requires expertise in Python and some knowledge of Go, along with a Bachelor's degree in Computer Science or a related field. Candidates should be passionate about open source ...

Staff Software Architect Backup Platform Lead

A Montreal-based tech company is looking for a Staff Software Developer to lead the development of the Backup feature for ShareGate, enhancing data management capabilities. This hands-on leadership position requires 10+ years of experience in software development and technical expertise in C#. The ideal candidat ...

Head of Product Support

Mechanical Orchard is reinventing how the world’s most critical software gets modernized. We’re an applied AI company focused on one of the hardest problems in enterprise technology: rewriting complex legacy systems in a way that is provably correct, low risk, and fast enough to matter. By focusing on syst ...

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