frontend developer reactjs jobs in Montreal

What Is the Role About?The focus of this role is building and improving the internal technology platforms that support business operations and products at scale.Rather than working exclusively on one part of an application, you'll have the opportunity to contribute across the full technology stack.Your work may involve designing backend services, developing...

Job DetailsCompany: Robots and PencilsPosition: Staff AI BuilderLocation: Canada - RemoteWe're looking for a Staff AI Builder to lead the design and delivery of AI/ML systems. This role is ideal for an experienced engineer who thrives on architectural decisions, can confidently own systems end-to-end, and contributes to technical leadership across the...

We are seeking a Lead Full Stack Software Engineer to build intuitive, performant user interfaces and frontend integration libraries that make GenAI and intelligent automation accessible and useful across IT, HR, Finance, Sales, Marketing, and Customer Support.ResponsibilitiesDesign and build end-to-end GenAI-powered applications, emphasizing intuitive...

Take the lead as a UI Platform Engineer at GitHub, working remotely from Canada. Focus on performance and accessibility to enhance GitHub's web platform for millions.In this pivotal role, you will join GitHub's Core UX organization, responsible for guiding the architecture and tooling for frontend systems. You'll collaborate closely with Principal Engineers...

Select how often (in days) to receive an alert: Create Alert.NET / AWS Technical Lead - Remote Canada RoleDate: Oct 2, 2026Location: Toronto, ON, CACompany: NTT DATA ServicesWe are currently seeking a .NET / AWS Technical Lead - Remote Canada RoleDay to Day job DutiesArchitecture & Design: Design and build modern, responsive web applications and...

OverviewWe're always looking to connect with talented Full Stack Consultants who are passionate about building scalable, modern applications. If you're experienced in backend and frontend development and thrive in cloud environments, we'd love to hear from you. We're always open to meeting great developers. Send us your CV and let's start the...

Shape scalable data products as a Senior Backend Engineer with a focus on Python. This remote role involves 70% backend work and 20-30% frontend development, directly influencing data infrastructure and architecture.In this senior engineering role, you will be responsible for managing scalable systems and data products. Collaborate with product managers,...

Join a major global financial services initiative as a Part-Time Technical Interviewer. Leverage your 8+ years of expertise in assessing Java developers across diverse categories. We are seeking a seasoned professional to evaluate senior Java candidates for a significant hiring initiative. You will work fully remote, engaging up to 20 hours weekly as part...

Software Engineering Intern (Winter 2027)Why HarveyAt Harvey, we're transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we're reshaping how critical knowledge work gets done for decades to come.This is a rare chance to help build a generational company at a true...

Overview Groupe Dynamite is a leading fashion digital retailer with two brands at the heart of our success, Garage and Dynamite. With over 300 stores in Canada and the U.S., and more than 6,000 people, we have been making our mark on fashion since 1975. Our core strengths are rooted in our team, innovation, and customers. We are proud to hire and retain...

Location: Montreal, QC (Hybrid – 3 days onsite mandatory) Duration: 12 Months Contract Interview Process: Local candidates preferred. In-person interview required after the initial video round. Travel expenses will be reimbursed upon submission of valid receipts. Role Overview We are seeking an experienced UI/Angular Developer to join the TPC...

The Opportunity Reporting to a Software Development Lead, you’ll build the interfaces our customers use to manage their websites, domains, and email, working in a squad with back-end developers and designers. This role has two sides. The first is our modern platform: a React front-end built in 2026 (React 19, Vite, Tailwind, TanStack Query, React Hook...

About The Role Hi, I'm Shane, and I lead the Patient Booking Web team at Jane. I started out writing software for medical devices and for oceanographers. Over the last decade or so I've led development teams at places like Amazon, Hootsuite, and Coinbase. What I care about most is building software that real people rely on, inside a team where everyone...

Remote Robotic Systems, a Canadian robotics and defence-tech company, is hiring a Full Stack Developer for a web platform that provides access to a tactical drone simulator and training material. The first release is planned for September 2026.You will work with the technical lead, shape the architecture, data model, and security approach, and implement...

We're always looking to connect with talented Full Stack Consultants who are passionate about building scalable, modern applications.If you're experienced in backend and frontend development and thrive in cloud environments, we'd love to hear from you.What we usually look for:Strong experience with Java (Spring Boot, REST APIs)Solid frontend skills with...

CA$120,000.00 yearly Full-time At Total Life, we’re redefining mental healthcare for older adults by leveraging a telehealth platform that delivers evidence-based emotional support.Our mission is to ensure quality, affordable mental healthcare is accessible to a vulnerable demographic, empowering older adults to lead healthier, more fulfilling...

This is a senior backend-focused engineering role responsible for shaping scalable data products and distributed systems.You will work across the stack, with roughly 70% of your time focused on backend and distributed systems and 20–30% on frontend development.Your work will directly influence the architecture, reliability, and scalability of...

Compunnel, Inc. is seeking a Full Stack Developer - Java / Angular to design, develop, and modernize enterprise applications supporting compliance and critical business workflows.You will build scalable backend services with Java Spring Boot and Angular frontends, leverage AI coding tools, and collaborate with global teams to deliver high-quality software...

Grafana Labs, a remote-first company, is hiring for a role in its Grafana Cloud Observability team. You will develop tooling to power our cloud integrations and observability apps, working across frontend (TypeScript/React), backend (Go), and monitoring mixins (Jsonnet).As part of a globally distributed team, you will ship features end-to-end, talk to users,...

A tech development agency is seeking a .NET Developer to build backend systems and APIs while collaborating with frontend teams. The ideal candidate should have strong experience with .NET and C#, knowledge of RESTful APIs, and database management skills. This position offers remote work options and the opportunity to work on diverse projects across various...