Description: * Solid experience in back-end development using Node.js. * Experience with relational and non-relational databases (e.g., MySQL, MongoDB, ClickHouse). * Experience handling large volumes of data and complex/heavy queries. * Knowledge of modular service architecture and RESTful APIs. * Experience with automated testing, version control (Git), and CI/CD. * Prior work in digital product teams and agile methodologies. * Ability to analyze and solve complex problems, with strong communication skills for both technical and business stakeholders. * Develop new features and enhance existing systems, focusing on quality, scalability, and maintainability. * Proficiency in software architecture and ability to propose structural system improvements. * Implement integrations between internal and external services (APIs, microservices, distributed systems). * Write clean, testable, and efficient code, adhering to engineering best practices and team-defined standards. * Create and execute automated and unit tests to ensure delivery quality. * Collaborate closely with product, QA, front-end, and data teams to ensure end-to-end delivery. * Actively participate in code reviews, contributing to collective learning and maintaining technical standards. * Monitor and optimize application performance, identifying and resolving bottlenecks. * Document workflows, architectures, and adopted practices to strengthen knowledge sharing. * Participate proactively in agile ceremonies (planning, refinement, retrospectives), demonstrating a solution-oriented and proactive attitude. * Mentor junior and mid-level developers. 2512070202191839073