Senior Frontend Developer - React & 3D

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Frontend Developer - React & 3D based in Canada. This is a senior engineering opportunity focused on building immersive, next-generation web experiences for an enterprise product environment. You’ll design and develop scalable frontend applications that support collaborative XR and 3D workflows. The role combines modern React development with 3D graphics, real-time communication, APIs, and cloud-native technologies. You’ll work closely with product managers, UX designers, and software engineers to turn innovative concepts into production-ready experiences. Your work will contribute to high-performance, responsive, and maintainable applications used in sophisticated digital workflows. You’ll have significant involvement in technical architecture, prototyping, engineering quality, and solving complex performance challenges. This role is well suited to a senior developer who enjoys emerging technologies, technically challenging products, and fast-paced Agile environments. Design, develop, and enhance modern web applications supporting immersive XR, 3D, and collaborative workflows. Build scalable frontend solutions using React.js or Next.js and integrate them with enterprise cloud platforms and services. Develop multi-user 3D web experiences using Three.js, Babylon.js, or comparable graphics frameworks. Collaborate with Product Managers, UX Designers, and Software Engineers to research, prototype, validate, and deliver innovative product capabilities. Architect and implement full-stack solutions, including backend services and cloud integrations where required. Integrate applications with RESTful APIs and real-time communication technologies such as WebSockets. Build high-performance, responsive, accessible, and maintainable user interfaces following modern engineering practices. Participate in Agile delivery activities including sprint planning, testing, code reviews, retrospectives, and continuous improvement. Contribute to technical architecture discussions and help establish engineering standards across the development lifecycle. Investigate and resolve complex technical issues while maintaining high standards for application quality, scalability, reliability, and performance. Work with cloud services, including Amazon S3, and support applications deployed through modern cloud environments. Collaborate across disciplines to ensure technical solutions align with product goals, user needs, and enterprise requirements. Requirements 8+ years of professional software development experience, with substantial experience building modern web applications. Strong proficiency in React.js or Next.js , with advanced knowledge of JavaScript and TypeScript . Hands-on experience designing and developing full-stack applications using cloud deployment models. Practical experience with Three.js, Babylon.js, or similar 3D graphics frameworks . Experience building real-time applications using WebSockets or comparable communication technologies . Strong knowledge of HTML5 and CSS and modern frontend development practices. Experience designing, consuming, and integrating RESTful APIs . Experience working with cloud services, particularly Amazon S3 . Proficiency with Git and GitHub for source control and collaborative development. Experience working within Agile software development environments and cross-functional engineering teams. Strong analytical and problem-solving capabilities, with the ability to troubleshoot complex technical challenges. Excellent communication and collaboration skills, particularly when working with product, design, and engineering stakeholders. Ability to work effectively in a fast-moving, product-focused environment and take ownership of technical outcomes. A Master’s degree in Computer Science or a related technical discipline is an asset. Experience with SQL and NoSQL databases, conta