Senior Full-Stack Software Developer with React.js Expertise

Hello and welcome! 👋 Are you searching for an exciting new opportunity, or just exploring the job market? You may have just found the perfect place to elevate your career by joining our innovative team. The Financial Automation team at Lightspeed is dedicated to simplifying merchant operations by transforming tedious manual tasks, such as sales reconciliati…

About Us:At AssistIQ, we are committed to revolutionizing the healthcare supply chain by empowering providers with the ability to generate precise data and insights regarding their supply usage. Our innovative AI-powered software solution ensures seamless tracking, real-time visibility, and actionable insights for healthcare systems, ultimately promoting waste reduction and enhancing revenue capture, leading to improved patient care and outcomes.About the Role:As a Full Stack Software Engineer, you will play a pivotal role in designing, developing, and managing the cloud-based services and web applications that drive the AssistIQ platform.We are looking for candidates who thrive in a fast-paced, entrepreneurial environment. Your primary objective will be to ensure the development of new functionalities in a practical, scalable, and maintainable manner.Success in this role requires the ability to manage multiple responsibilities simultaneously, prioritize competing deliverables effectively, communicate clearly across the organization, and maintain a focus on continuous incremental improvement.We expect you to be knowledgeable, articulate, and sensible, capable of coordinating with peers and senior executives, while collaborating to deliver results in a dynamic environment where teamwork, professionalism, confidentiality, and communication are paramount.Your Responsibilities:Design, develop, and enhance new functionalities of the AssistIQ platformOptimize the deployment process and ensure adherence to automation and continuous integration best practicesSupport the production infrastructure and our product for customersAssist internal customer support and implementation teamsDevelop internal tools to enhance our deployment, management, and monitoring capabilitiesProvide technical and analytical guidance to fellow development team membersContribute to the writing and maintenance of technical documentationEngage in planning product features and development projectsParticipate in our Agile development process and ceremonies

Xsolla seeks a Full-Stack Engineer in Montreal to support the development and enhancement of its gaming platform. This position involves working on both front-end and back-end components, with frequent collaboration across various teams. Responsibilities Design, build, and maintain features for both the user-facing and server-side parts of the platform Partner with team members from different departments to implement platform improvements Location This role is located in Montreal.

Plusgrade Inc. is seeking an Intermediate Software Developer for a one-year fixed-term contract in Montreal, Quebec. The role centers on building and enhancing software products that help drive the company’s growth. Key responsibilities Design, develop, and maintain software solutions for Plusgrade’s suite of products. Collaborate with fellow developers to deliver reliable and effective features. Write clean, efficient code and take part in debugging and troubleshooting efforts. Support ongoing technology projects and contribute to achieving team objectives. Contract details Location: Montreal, Quebec Term: 1 year fixed-term contract

Join Xsolla, a leading payment solutions provider for the gaming industry, as a Full Stack Engineer specializing in React and Node.js. In this role, you will be responsible for designing, developing, and maintaining web applications that enhance the gaming experience for players worldwide.Your expertise in both front-end and back-end development will help us build robust, scalable, and interactive applications. Collaborate with cross-functional teams to create innovative solutions and ensure high-quality code that meets our standards.

ABOUT XSOLLAXsolla is a leading global commerce platform that equips developers with innovative tools and services to navigate the complexities of the video game industry. From indie developers to major AAA studios, Xsolla empowers its partners to fund, distribute, market, and monetize their games effectively. With a strong belief in the future of gaming, we are dedicated to connecting opportunities and continuously providing new resources to creators. Headquartered in Los Angeles, California, we serve as the merchant of record and have successfully assisted over 1,500 game developers in reaching wider audiences and expanding their businesses globally. Our mission is to ensure developers have everything they need to thrive in the gaming landscape.Position Overview: As a Full Stack AI Engineer, you will design and develop cutting-edge applications that power generative AI platforms.Key Responsibilities:- Architect and develop full-stack applications tailored for generative AI solutions.- Create and maintain dynamic frontend applications using Next.js with integrated API routes.- Design and implement visually engaging and responsive user interfaces utilizing Tailwind CSS / Shadcn or similar CSS libraries.- Write clean, efficient, and scalable code using Python and TypeScript.- Collaborate with various libraries or frameworks based on project needs.- Stay informed about the latest trends in AI and associated technologies, frameworks, and tools (e.g., MCP, agentic systems).- Develop APIs and infrastructure supporting LLM-based features and workflows.- Work closely with frontend, ML, and product teams to deliver seamless AI experiences.- Optimize backend systems for enhanced performance, scalability, and reliability.

About Stay22At Stay22, we are transforming the way people convert online. Our AI-powered affiliate platform empowers publishers, ticketing platforms, and content creators to unlock new revenue streams while enhancing their audience's user experience. Our partners don’t just earn more; they provide more. Join us in making a significant impact in the world of affiliate marketing.About the PositionAs a Senior Full-Stack Developer on the Phantom team, you will play a pivotal role in developing our integrated widget and affiliate platform. You will optimize browser-side script execution to ensure high performance across various sites, while designing privacy-respecting session tracking and fingerprinting mechanisms. You will oversee the entire script lifecycle, from load optimization to event management and error recovery, contributing to the infrastructure that powers Stay22's embeddable products.Key ResponsibilitiesContinuously optimize load times and script execution efficiency (minification, caching, lazy loading).Develop reliable methods for injecting content and widgets across different sites (DOM, dynamic layouts).Implement precise event handlers to track user interactions with embedded elements.Utilize fingerprinting techniques to track user sessions while ensuring privacy compliance.Create and maintain Node.js/Python scrapers for data collection from partner sites or APIs, with failover sources to ensure resilience.Troubleshoot and adapt script logic for real-world conditions and manage conflicts with third-party scripts.Oversee the entire stack of integrated products (scripts, SDK, API) and collaborate with teams to implement new features.

Join our dynamic team at System Canada Technologies as a JavaScript Web Developer. In this role, you will be responsible for developing and maintaining high-quality web applications using JavaScript frameworks. This is an exciting opportunity to contribute to innovative projects while working in a collaborative environment.

Genetec Inc. is adding a Front-End Web Developer to the Digital Experience group in Montreal, Quebec. This team designs and builds digital platforms that help partners work independently and efficiently. As the group expands, the new developer will help shape interfaces that serve a wide range of users. Role overview This position covers the full software development lifecycle, from concept to delivery. The developer will create new features for user-facing applications, working closely with product managers, administrative services, QA teams, and others to deliver new functionality. Validating the technical feasibility of UI and UX designs is a key part of the job, along with applying automated testing and following test-driven development practices. Ensuring code meets security and compliance standards, reviewing code (including that of teammates), and collaborating with QA leads to confirm test results are also central to the role. Requirements Bachelor’s degree in Computer Science, Computer Engineering, Software Engineering, or equivalent experience Minimum 5 years of experience building front-end web applications Ability to write clean, efficient, and scalable code Strong collaboration skills and a team-first mindset Quick to learn new concepts and solve complex problems Fluency in both English and French, spoken and written Technical skills Extensive experience with HTML, CSS, and web/browser APIs Solid understanding of JavaScript and TypeScript Background with frameworks such as NextJS, React, Angular, or similar modern JavaScript libraries Knowledge of responsive web design principles Additional assets Experience developing B2B or B2C web applications Mobile development skills Familiarity with .NET environments Background in DevOps, including Azure Pipelines (YAML) and GIT Understanding of Agile development methodologies Benefits Competitive compensation package Training reimbursement program Subsidized meals at the onsite Bistro

Join a Dynamic Team:Become part of a passionate group working with cutting-edge software development technologies.Some of the technologies utilized in our project include:Microservices ecosystem built with the latest version of C#/ASP.NETMultiple NoSQL databases such as MongoDB, ElasticSearch, and RedisUser interfaces developed in ReactJS with: TypeScript, MaterialUI, ViteJS, Cypress, TanstackAsynchronous communication using an event system (AMQP)Container-based development utilizing Docker and KubernetesInfrastructure as code orchestrated with Terraform and Argo CDComprehensive test coverage through unit, functional, and integration testingContinuous integration and deployment (CI/CD) using Azure DevOpsFeature flagging, A/B testing, and Canary releases via the Launch Darkly platformYour Day at a Glance:Develop modern microservice applications using state-of-the-art toolsPlay a key role in a highly motivated and collaborative teamEnhance your knowledge in both Frontend and Backend while being responsible for the entire stackEngage in the complete application development cycle, including testing and deployment (DevOps)Work in a SaaS environment where your decisions will have an immediate impact on clients from day oneWhat Makes You an Excellent Candidate:Bachelor's degree in Computer Science, Software Engineering, or equivalent work experienceTechnical knowledge of object-oriented concepts and associated best practicesFamiliarity with cloud environments and their challenges is considered an asset (Azure, AWS, GCS)A genuine passion for software development!Proficiency in French and English, both spoken and written (this position requires interaction with our international collaborators and clients)What We Offer:Attractive compensation packageTraining expense reimbursement programSubsidized meals at our amazing Bistro (Les Cordons Bleus)Work-life balance with a flexible scheduleUnlimited free coffeeFree parking for all employees

We are seeking a skilled Web Authentication Engineering Developer to join our innovative team at System Canada Technologies in beautiful Montreal. In this role, you will work on cutting-edge authentication solutions, enhancing security measures and improving user experiences. You will collaborate with cross-functional teams to build robust web applications while adhering to best practices in web security.

Join our dynamic Web Authentication team as a C Developer, where you will play a crucial role in enhancing our authentication systems. This is an exciting opportunity to work on innovative projects that protect our users' data and improve the overall security of our applications. If you are passionate about coding and eager to make a difference in web security, we want to hear from you!

About Us:As a leading provider of technology in business intelligence, unified physical security, public safety, and operations, Genetec develops innovative software, hardware, and cloud services on an open platform for the physical security and public safety sectors. Our flagship product, Security Center, integrates IP video surveillance, access control, and automatic license plate recognition (ALPR) into a single platform. Since our inception in 1997, we have been at the forefront of emerging technologies that unify physical security systems, serving businesses and government agencies through a global network of resellers, integrators, and consultants in over 80 countries. For more information about Genetec, visit our website: genetec.com.Your Team Dynamics:Join our talented, passionate, and experienced team of developers who are designing the foundations and workflows for Genetec's next-generation physical security product. We work both in the cloud with a cutting-edge native web application and on-site with desktop applications connected to the cloud.Our Technology Stack:Web user interface developed in React and TypescriptA micro-frontend architecture built using React, Module Federation, and WebPackA cloud-scale microservices ecosystem utilizing C#/.NETInfrastructure services deployed as code with AKS and TerraformA strong foundation in Microsoft Azure technologiesA modern data layer using NoSQL databases such as MongoDB, Elasticsearch, and RedisWhy Join Our Team?You are passionate about software development and technologyYou want to work within a cohesive team of experienced, highly skilled, and technical individualsYou wish to leverage your unique combination of software development skills and creativity to work on a world-class software systemYou want to be part of something meaningfulYour Day at a Glance:As a developer on our team, you will work daily with cutting-edge technologies, striving to create an innovative user experience that delights customers and provides real value. You will also be tasked with:Designing, developing, and deploying...

Join our dynamic team at info-ways as an Angular JS Developer. In this role, you will be responsible for building and maintaining efficient, reusable, and reliable Angular JS applications. We are looking for a skilled developer who is passionate about web technologies and thrives in a fast-paced environment.

Position Overview:As a key member of our Web Experience team, the Web Experience Coordinator will thrive in a dynamic environment equipped with modern platforms and integrated marketing technology tools. You will play an essential role in managing, supporting, and enhancing the digital experience on our corporate website and client portal. Your responsibilities will range from designing or updating homepage layouts and online campaigns to tracking web page performance and collaborating with other marketing teams. You will develop new skills and gain proficiency in website research, traffic analysis, A/B testing, and Conversion Rate Optimization (CRO).Your Background:You are eager to become a web expert and are excited to work with cutting-edge digital tools. With a technical inclination, you are naturally curious, motivated, and always seeking to learn new things. You enjoy collaborating with others and are always ready to assist colleagues and learn from them.Your Daily Responsibilities:Create new homepage layouts or update existing ones for our website and online campaigns.Collaborate with team members from Design, Content, Product, and Regional Marketing to develop new homepage templates and intuitive online experiences.Optimize webpage layouts based on feedback from various teams, including SEM, SEO, and web analysts.Coordinate the translation of web content into other languages using CMS workflows.Create and manage project tickets, assist with website maintenance, and conduct pre-launch testing for new features.Document our processes and standards, and develop presentations to train colleagues at headquarters or in regional offices.Assist in the onboarding and support of freelancers and digital agencies we collaborate with.Ideal Candidate Profile:University degree in Marketing, Business, Business Technology, or equivalent training/experience.Strong understanding of digital marketing.Good grasp of websites, webpage management, or experience managing a website.Proficient in French and English, both spoken and written (this role requires interaction with international colleagues and clients).Preferred Qualifications:Practical experience in related fields will be considered a plus.

ABOUT YOUWe are seeking a dedicated Mid-Level Quality Assurance Engineer with over 5 years of experience in QA. You possess a keen eye for detail, strong technical skills, and a proactive mindset that drives innovative solutions within our engineering team. You excel in fast-paced, agile environments and are committed to maintaining high-quality standards throughout the development lifecycle. Along with your confidence in manual testing, you are enthusiastic about integrating AI-driven testing tools and workflows to enhance productivity, improve test coverage, and boost defect detection.Your expertise in both exploratory and structured testing will help you contribute to team best practices, as you actively monitor production behavior and user experiences. You remain curious about emerging tools and technologies, particularly in AI, and understand how to effectively utilize them while adhering to fundamental testing principles.If you're eager to refine testing processes, champion quality across teams, and drive QA innovation through automation and AI, we invite you to reach out.ABOUT USXsolla is a leading global commerce company that provides robust tools and services to assist developers in overcoming the complexities of the video game industry. From independent developers to large AAA studios, companies collaborate with Xsolla to secure funding, distribute, market, and monetize their games. We believe in the future of gaming and are unwavering in our mission to connect opportunities while continuously providing new resources for creators. Headquartered in Los Angeles, California, Xsolla serves as the merchant of record and has empowered over 1,500 game developers to expand their reach and grow their businesses worldwide. With diverse pathways to profitability, we equip developers with everything they need to succeed in the gaming landscape.For more information, visit xsolla.com.

Join our innovative team at Collabera as a Front-end Software Designer, where you will play a crucial role in crafting engaging user interfaces and delivering exceptional user experiences. You will collaborate closely with our development team to design and implement cutting-edge web applications that enhance functionality and usability. This is an exciting opportunity for someone who is passionate about web technologies and eager to contribute to impactful projects.

Join AccorHotels as a Full-Time Housekeeping Associate and play a key role in maintaining the cleanliness and comfort of our esteemed guests. As a vital part of our team, you will ensure that all areas of the hotel are kept to the highest standards of cleanliness and hygiene. Your attention to detail and dedication will contribute to creating a welcoming environment for our guests.

Join Accor Hotels as a dedicated Plumber and play a vital role in maintaining the plumbing systems of our esteemed establishments. We are looking for a skilled individual who is passionate about providing excellent service and ensuring guest satisfaction through reliable plumbing solutions. If you have a knack for problem-solving and thrive in a dynamic environment, we would love to hear from you!

Join MaintainX as a Software Developer specializing in AI development tools. In this role, you will be part of a dynamic team responsible for creating innovative solutions that enhance our platform's capabilities. You will collaborate with cross-functional teams to design, develop, and implement AI-powered features that drive efficiency and improve user experience.