Senior Backend Engineer (NodeJS)

Mission:

• We’re building a scalable loyalty and fintech ecosystem that connects millions of users across Southeast Asia.
• As a Senior 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

Key Responsibilities:

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.

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.

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.

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.

Technical Skills

• 5+ years of backend software development experience.
• 3‒4+ 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-onexperience with SQL and NoSQL databases, caching(e.g.,Redis)
• Good understanding of micro services and distributed systems concepts.
• Experience working with cloud platforms (AWS, GCP,orAzure).
• Familiarity with Git and Agile/Scrum development processes.

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 teamleadership responsibilities required.

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.

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.

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.