5,823+ Fullstack Developer Java React Jobs in Mississauga, Canada — Local Employers Hiring June 2026

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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 ...

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 ...

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 ...

Lead Workflow Architect Citi Technology

Shape the future of client lifecycle management as the Lead Workflow Architect at Citi, focusing on designing advanced KYC processes. This full-time role emphasizes collaboration and technological innovation.This Senior Workflow and Microservices Lead position at Citi demands a proactive expert with extensiv ...

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. ...

Staff Software Engineer at Confluent

Shape the future of data with Confluent as a Staff Software Engineer. Focus on building impactful internal web applications that empower business teams with strategic insights.Join the Business Technology team at Confluent, responsible for creating applications that enhance revenue, operational efficiency, a ...

Senior Software Engineer in Cursor Development

Capgemini Engineering is looking for a Senior Software Engineer to champion Cursor development, enhancing code quality and team productivity through AI technologies. Engage with innovative coding practices.In this role, you will apply your 5+ years of software development experience to improve coding practic ...

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 ...

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 ...

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 ...

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. ...

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 ...

Angular Front End Engineer: Micro Frontends & Performance

A leading technology firm in the Peel Region of Canada is seeking a front-end developer experienced in Angular to develop and maintain modern web applications. You will ensure code quality through testing and collaborate on architectural decisions. Knowledge of UI/UX principles and state management using pattern ...

Swift iOS Engineer — Hybrid Contract (3 Months)

A leading consulting firm in Canada is looking for an Apple Platform Developer for a three-month hybrid contract with the potential for extension or permanent hire. The position will involve developing application features using Swift and Xcode, supporting various iOS platform UI development, and collaborating w ...

Senior Full Stack Architect (C#, .NET, TS) – Hybrid

A leading technology firm in Mississauga, Canada is seeking a Full-stack Developer proficient in C#, TypeScript, .NET, and Angular. The role involves designing and implementing complex systems, mentoring senior developers, and collaborating with various stakeholders. We offer a hybrid work model and the chance t ...

Senior Power BI & Snowflake Data Architect

A global consulting firm is seeking a skilled Power BI Developer in Mississauga. The role involves developing data warehousing solutions, optimizing data models, and creating insightful reports using Power BI. The ideal candidate will have 10 years of experience in BI development, proficient in advanced SQL, and ...

Swift iOS Engineer — Hybrid Contract (3 Months)

A leading consulting firm in Canada is looking for an Apple Platform Developer for a three-month hybrid contract with the potential for extension or permanent hire. The position will involve developing application features using Swift and Xcode, supporting various iOS platform UI development, and collaborating w ...

Golang Backend Engineer – Billing & Payments (Remote)

A cybersecurity company is seeking a Developer to join the Billing and Payments Infrastructure team, responsible for managing financial transactions and ensuring timely customer invoicing. The ideal candidate has over 2 years of experience in software development with a strong proficiency in Golang. You'll colla ...

Senior Power BI & Snowflake Data Architect

A global consulting firm is seeking a skilled Power BI Developer in Mississauga. The role involves developing data warehousing solutions, optimizing data models, and creating insightful reports using Power BI. The ideal candidate will have 10 years of experience in BI development, proficient in advanced SQL, and ...

Remote Conversion Led Landing Page Designer (Divi)

A digital design firm is seeking a designer-developer to create and optimize high-impact landing pages using Divi on WordPress. The ideal candidate will have a strong design sense combined with a focus on user conversion. You will be responsible for turning ideas into structured layouts, recommending improvement ...

Remote Senior Power BI Architect: Semantic Models

A leading liquor and cannabis company in Canada is seeking a Senior Business Intelligence Developer to modernize their enterprise data platform using Microsoft Fabric and Power BI. This role involves developing high-performance Power BI solutions and collaborating with various stakeholders. The ideal candidate w ...

Senior Power BI & Snowflake Data Architect

A global consulting firm is seeking a skilled Power BI Developer in Mississauga. The role involves developing data warehousing solutions, optimizing data models, and creating insightful reports using Power BI. The ideal candidate will have 10 years of experience in BI development, proficient in advanced SQL, and ...

Full Stack Engineer for Web3 NFT Trading (Remote)

A leading NFT marketplace is seeking a passionate developer to join their team in building advanced trading infrastructure for NFTs. This role offers the opportunity to ship new products, optimize data pipelines, and work with modern tech stacks. Ideal candidates have 3+ years of experience in large-scale applic ...

Remote Kotlin QA Engineer & AI Trainer (Freelance)

A forward-thinking tech company seeks a Freelance Software Developer skilled in Kotlin and iOS development. This remote role offers flexibility, with responsibilities including designing automated tests for applications and collaborating with developers to resolve issues. Candidates must hold a relevant degree a ...

Angular Front End Engineer: Micro Frontends & Performance

A leading technology firm in the Peel Region of Canada is seeking a front-end developer experienced in Angular to develop and maintain modern web applications. You will ensure code quality through testing and collaborate on architectural decisions. Knowledge of UI/UX principles and state management using pattern ...

Senior Backend Architect — Remote, Azure & ERP

A leading technology firm in Calgary is seeking a Senior Developer to lead internal development and collaborate across teams. The ideal candidate will have 7–10+ years of experience in software development, strong proficiency in C#/.NET and/or Python, and a deep understanding of Azure environments. Responsibilit ...

Remote Engineering Manager, CRE Services

A leading blockchain technology firm is seeking a leader for their Developer Services engineering team in Toronto, Ontario. This role focuses on enhancing the CRE Service Layer's reliability and operational resilience. You will oversee a high-performing team, manage stakeholder expectations, and deliver new serv ...

Senior .NET Architect — Nuclear Digital Transformation

A nuclear technology company in Canada is seeking a Senior .NET Developer to drive the design and evolution of critical software systems. You will build scalable and resilient applications, lead architectural decisions, and partner with product leaders to deliver innovative solutions. The ideal candidate has str ...

Build Real AI Automation Tools with Agentic AI

Launch Your Career in Agentic AI – Build Real AI Tools in Just 8 Weeks! MLC College × TraceSecure Present Agentic AI Project Experience & Build Program (8 Weeks) A structured hands‑on learning and project experience program designed for developers, IT professionals, students, and A ...

WPF Software Engineer

Senior Software DeveloperAversan Inc. ( ) is a trusted multi-service engineering and electronics manufacturing company. Aversan delivers leading-edge and reliable safety-critical electronics and software systems to the aerospace, defence, and space industries.We are currently seeking a quali ...

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 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 ...

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 ...

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 ...

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 ...

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 ...

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 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 ...

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 ...

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. ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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