Senior Node.js Developer

Job Description

<h3>Job Description</h3><p>Job Description<p><p>Our client, is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. As part of their growth they are now seeking to recruit a Senior Node.js Developer to join their team in Toronto, Canada. This is an on-site position based at the office</p><p>You will help build the backend of our client´s platforms. This is a hands-on role where you will design, code, and optimize high-performance systems while working on exciting projects in a fast-paced environment.</p><p><strong>Overview of the role</strong></p><p>Contribute to the design and development of scalable backend systems and services, ensuring robustness, high performance, and maintainability. Work closely with cross-functional teams to integrate third-party APIs, build new features from scratch, and enhance the core architecture of the platforms.</p><p><strong>Responsibilities:</strong></p><ul><li>Develop and maintain in-house backend platforms with Node.js and Nest.js</li><li>Design and implement third-party API integrations</li><li>Build new features and services from scratch in a microservices environment</li><li>Optimize performance and scalability for high-load systems</li><li>Write clean, testable, and maintainable code following best practices</li><li>Participate in code reviews, knowledge-sharing, and continuous improvement initiatives</li><li>Collaborate with frontend, QA, and product teams to ensure high-quality deliveries</li></ul><p><strong>Requirements:</strong></p><ul><li>5+ years of professional experience in web development</li><li>3+ years of hands-on experience with Node.js and Nest.js</li><li>Strong knowledge of JavaScript (ES6+)</li><li>Experience with high-load SQL and/or NoSQL databases (MongoDB, MySQL, etc.)</li><li>Proven experience implementing REST, GraphQL, and WebSockets</li><li>Understanding of TDD principles and experience writing automated tests</li><li>Solid understanding of microservice architecture principles</li><li>Experience with Git and modern CI/CD workflows</li><li>Experience with Redis and RabbitMQ</li><li>Advanced level of English</li></ul><p><strong>Nice to Have</strong></p><ul><li>2+ years of experience with CI/CD, microservices, and containers</li><li>Experience with Kubernetes</li><li>Experience with NATS</li><li>Strong knowledge of TypeScript</li></ul></p></p>