Summary: Seeking a Senior Software Engineer to enhance backend stability and guide Node.js architecture growth, shipping reliable TypeScript services with strong testing and reviews. Highlights: 1. Strengthen backend stability and guide Node.js architecture growth 2. Ship reliable TypeScript services with strong testing and reviews 3. Mentor junior developers and champion industry best practices We are hiring a **Senior Software Engineer** to strengthen backend stability and guide the ongoing growth of our Node.js architecture. You will ship reliable TypeScript services, raise quality with strong testing and reviews, and keep performance and security front and center—apply now. **Responsibilities** * Build reusable, maintainable components that follow TypeScript and Node.js standards * Improve backend performance and strengthen the security of the ecosystem * Run structured testing across Unit, Integration, and E2E levels and lead code reviews * Make sound decisions within your service/module while keeping technical debt low * Mentor Junior developers and champion industry best practices **Requirements** * Proven 3\+ years of experience using Node.js and TypeScript in high\-demand environments * Demonstrated experience writing unit and integration tests * Solid proficiency with SQL and NoSQL, including query optimization and data management * Working knowledge of AWS and CI/CD tools such as GitLab or Jenkins * English proficiency at B2 (Upper\-Intermediate) level or higher