senior fullstack developer jobs in Montreal

Join the Cyber-DNS team at CIRA and play a key role in advancing Canada’s cybersecurity and DNS infrastructure! Our Cyber-DNS team is dedicated to protecting Canadians online by delivering cutting‑edge solutions.Who You Are You're a passionate software developer who wants your work to make a difference. You have a strong background in cybersecurity and...

Develop compiler technologies and developer tooling at QNX, using C or C++ to support mission-critical embedded software. Work across GNU and LLVM toolchains. This Senior Systems Software Developer role focuses on compilers, language runtimes, command-line utilities, and libraries. You will solve complex issues from low-level system components through...

Build enterprise-scale routing engines with Java and Spring Boot at Miratech, developing real-time interaction distribution for contact center operations. As a Senior Routing Engine Developer, you will create scalable backend services for voice and digital interactions. You will apply distributed systems, microservices, event-driven architecture, and...

Power the product data behind intelligent commerce experiences Do you enjoy solving complex engineering challenges and building systems that perform at scale? As a Senior Full Stack Developer on our Launch team, you'll develop the infrastructure and applications that power product catalog ingestion, helping enterprise customers keep their product data...

GIRO IS YOUR WAY FORWARDAt GIRO, our mission is clear: Improving quality of life around the world through software and services that increase the efficiency of public transport and postal delivery. Joining us means contributing to projects and initiatives that makes a real difference to millions of people. Every line of code, every idea, every action,...

At Nöord Technologies, we empower top-tier financial institutions with exceptional talent in banking and capital markets. For the needs of one of our prestigious clients, a major banking actor in Montreal currently experiencing strong growth, we are actively seeking an experienced Senior C# .NET Backend Developer. About the Role As part of a high-performing...

Build enterprise applications remotely with C#, .NET, and Microsoft Azure for New Value Solutions, with Ottawa onsite attendance potentially required. Apply microservices expertise across development, testing, and deployment activities. New Value Solutions seeks an experienced Software Developer for a potential long-term engagement. You will develop cloud...

AI That Moves the World. Careers That Move You Forward.At Cerence AI, you’ll help transform advanced AI into trusted, real-world solutions that make complex technology – think vehicles, robots, smart manufacturing, and emerging intelligent devices – more natural, reliable, and useful. Building on decades of innovation and global deployment in...

MaintainX is a leading mobile-first work execution platform for industrial and frontline teams. More than 13,000 customers, including Duracell, McDonald's, Shell, DHL and Volvo, use MaintainX to cut unplanned downtime and run better operations, across 13.9 million managed assets and 79.5 million completed work orders.In August 2026 MaintainX became part of...

At AppLit, we are seeking a Senior Full Stack Developer with a focus on React Native for mobile app development. You will spearhead projects that empower startups with impactful mobile solutions for iOS and Android. As a pivotal member of the AppLit team, you will apply your extensive knowledge of JavaScript and TypeScript, collaborating closely to design...

In just three decades, ALTEN has become a global leader in Research & Development, Engineering, IT Services, Life Sciences, and Network Services. With a presence in more than 30 countries and a team of over 60,000 employees, we are trusted by industry leaders worldwide to deliver pioneering solutions and drive technical excellence. ALTEN CANADA, a proud...

Build full stack software with Python, JavaScript, and LLM features at AlayaCare, contributing to frontend and backend architecture. This senior role supports scalable applications.As a Senior Full Stack Developer on AlayaLabs within Data & Intelligence, you will deliver production-ready features from database to user interface. The work includes Vue.js,...

Build Java backend applications in Montreal through a hybrid schedule requiring in-office presence three days weekly. Apply advanced Java and cloud-focused development skills.This 12-month contract suits a backend developer with at least five years of hands-on Java EE and core Java experience. You will develop a new platform using established standards,...

Qohash is building the zero copy data security control layer, enterprises need to adopt AI safely. Our platform, Qostodian, helps large organizations discover, classify, govern, and remediate sensitive unstructured data across their most critical data sources without moving or copying the data. This zero copy architecture reduces exposure, preserves data...

Build Market Risk applications in Montreal using Core Java, Spring, and relational databases within a hybrid work model.This 12-month Senior Java Developer assignment focuses on developing and enhancing Risk Management applications. You will apply server-side Java, distributed data processing, and DevOps practices while collaborating with business partners...

Be part of AlayaCare's mission as a Senior Developer specializing in Python and React, based in Montreal. Champion innovative onboarding solutions in our hybrid workplace environment. As a senior member of the product team, you will utilize your expertise in software development to ensure the delivery of high-quality solutions. Your role includes direct...

At XTM Group, we build technology that helps enterprises connect with global audiences faster and more efficiently. Our Translation Management platform enables organizations to automate and streamline every stage of the localization process. We believe innovation happens when talented people collaborate, experiment, and continuously learn. That's why we...

We are a team of mission-driven people who want to enable companies to protect themselves against cyber crimes and we’re damn passionate about it. We thrive on trust, operate with integrity and above all support our people so they can do their best work and be their best selves. If you continuously challenge yourself to learn and grow, are driven by the...

Company DescriptionWorkleap is a Montreal-based tech company, founded in 2006. We're builders at heart, we make simple products that actually matter to the people who use them. We have two product lines: Workleap Agent, our newest solution built to make every manager more effective, and ShareGate, the world's leading solution for Microsoft 365 migration and...

Become a Senior Java and Python Cloud Developer focused on optimizing deployment practices in Kubernetes systems. Your expertise will revolutionize trading application infrastructures. We are looking for a driven Senior Developer with a strong foundation in cloud-native designs and Kubernetes. Work closely with diverse teams to create and implement...