Senior Node.js Developer

Senior Node.js Developer (High-load Systems) BrainRocket is a global company creating end-to-end tech products for clients across Fintech, iGaming, and Marketing. Young, ambitious, and unstoppable, we've already taken Cyprus, Malta, Portugal, Poland, and Serbia by storm. Our BRO team consists of 1,300 bright minds creating innovative ideas and products. We don’t follow formats. We shape them. We build what works, launch it fast, and make sure it hits. *Please note that this role is office-based for Spain. If you need to be relocated, we take care of the process. * We are looking for an experienced Senior Node.js Developer to join our development team and help build and scale our High-load platforms. This is a hands-on role where you will design, code, and optimize high-performance systems with a heavy focus on database efficiency and scalability in a fast-paced environment. Your Mission: Contribute to the design and development of scalable backend systems, ensuring robustness and high performance. Your mission involves not only building features but also deep-diving into database optimization, query performance, and big data management to ensure our infrastructure handles peak loads seamlessly. Responsibilities: - Develop and maintain in-house backend platforms using Node.js and Nest.js. - Optimize database performance by debugging queries, managing indexes, and utilizing data partitioning strategies. - Design and implement complex third-party API integrations. - Build new features and services from scratch within a microservices architecture. - Ensure system reliability by understanding and monitoring the DB planner and data normalization principles. - Manage and scale systems handling Big Data and high-load SQL/NoSQL databases. - Write clean, testable, and maintainable code following TDD and best practices. - Collaborate with cross-functional teams to deliver high-quality, high-performance solutions.