Backend Engineer (NodeJS)

**I. Mô tả công việc/ Job Description:** We’re building a scalable loyalty and fintech ecosystem that connects millions of users across Southeast Asia. As a Backend Engineer, you will focus on hands-on backend development, owning backend services and modules end-to-end. This role emphasizes technical depth, system reliability, and code quality, without people-management responsibilities. _1.1. Backend Development__ • Design, develop, and maintain high-performance backend services using Node.js. • Build and evolve backendsystemsfollowing microservices or modular architecture. • Develop RESTful APIs for web, mobile, andpartner integrations. • Take end-to-end ownership of assigned backendservices or modules(design, implementation, testing, deployment support). • Optimize system performance, scalability, and reliability under high traffic. _1.2. Code Quality & Operations_ • Write clean, maintainable, and well-tested code. • Participate in code reviews to ensure coding standards, security, and best practices. • Debug and resolve complex backend issues in production environments. • Proactively refactor code and reduce technical debt. • Apply secure coding practices to protect systems and user data. _1.3. Collaboration_ • Work closely with Frontend, Product, QA, and DevOps teams to deliver features on time. • Analyze business requirements and propose appropriate technical solutions. • Support release activities and ensure backend stability after deployment. _1.4. Tools & Productivity_ • Use CI/ CD pipelines, logging, and monitoring tools effectively. • Leverage AI-assisted development tools (e.g., Claude Code, GitHub Copilot, ChatGPT) to improve productivity when appropriate. **II. Yêu cầu công việc / Requirements:** _2.1. Technical Skills_ • 5+ years of backend software development experience. 3+ years of hands-on experience with Node.js in production systems. • Experience with event-driven architecture or message queues. • Strong experience building backend services for high-traffic applications. • Solid understanding of RESTful APIs, asynchronous processing, and backend performance optimization. • Hands-on experience with SQL and NoSQL databases, caching (e.g., Redis). • Good understanding of microservices and distributed systems concepts. • Experience working with cloud platforms (AWS, GCP, or Azure). • Familiarity with Git and Agile/Scrum development processes. _2.2. Mindset & Working Style_ • Strong ownership mindset over assigned services and components. • Able to work independently with minimal supervision. • Quality-focused, detail-oriented, and proactive in problem solving. • Clear communication skills in a cross-functional team environment. • No people management or team leadership responsibilities required. _2.3. Bonus Skills:_ • Familiarity with event-driven architecture and message queues. • Experience integrating third-party APIs or working in fintech / loyalty platforms. • Contribution to open-source projects or technical communities. _2.4. Nice to Have_ • Ability to analyze, review, and improve the complex legacy code. • Experience integrating fintech, payment, loyalty, or third-party partner systems. • Familiarity with monitoring and observability tools (ELK, Prometheus, Grafana). • Experience working in large-scale product systems in Vietnam. • Prior exposure to AI-assisted development environments. **3. Job Benefits:** - Competitive salary package (Base salary and performance bonuses). - Probation period salary is 100% of the official salary. - Comprehensive health and accident insurance. - 15 days of annual leave. - Provision of work equipment (Macbook/Laptop, mouse, monitor, etc.). - A creative and modern working environment. Feel free to contact me if you need any assisstant or send your CV to mail: talent@galaxyjoy.vn truchtm@galaxyjoy.vn