Senior Backend Engineer (NodeJS)

Job Description

Mission:

• We’re building a scalable loyalty and fintech ecosystem that connects millions of users across Southeast Asia.
• Our backend stack powers real-time transactions, personalized offers, and high-throughput integrations with top partners (banks, telcos, lifestyle brands).

Key Responsibilities:

Technical Leadership

• Design and maintain scalable, high-performance backend services.
• Analyze requirements, design and refine system architecture, and drive technical decisions with a microservices mindset.
• Build and standardize shared core libraries to ensure consistency and reduce development duplication across services.
• Conduct code reviews, enforce best practices, mentor team members, and foster technical growth.
• Evaluate and integrate AI-assisted workflows (GitHub Copilot, Chat GPT, Claude, etc.) to accelerate development.
• Work effectively in a cross-functional team, collaborating with product managers, designers, Front-end engineers, data scientists, and other stakeholders.
• Troubleshoot complex technical issues and ensure scalability, security, and reliability.
• Take ownership of critical backend modules and ensure their scalability, reliability, and observability.
• Collaborate with Technical Manager to design long-term architecture roadmap and tech standardization plan.
• Act as a decision-maker in choosing technologies, libraries, and system patterns for the team.

Mentorship & Collaboration:

• Mentor and coach developers in both technical skills and engineering mindset.
• Conduct code reviews, technical workshops, and pair-programming sessions.
• Collaborate closely with Product, QA, and DevOps teams to ensure alignment on delivery goals.
• Contribute to the internal best-practice library (design patterns, coding standards, CI/CD templates).

Job Requirement

Technical Skills

• 5+ years of software development experience, including 4+ years working with Node.js and microservices.
• Design and implement systems that can handle high volumes of data and traffic.
• Strong experience in system architecture design and backend performance optimization.
• Solid knowledge of both SQL and NoSQL databases, caching strategies, search engines, and distributed systems.
• Proven track record in leading engineering teams, mentoring developers, and conducting code reviews.
• Write high-quality, well-tested, and maintainable code.
• Implement secure coding practices and work closely with the security team to ensure the security of the platform.
• Strong problem-solving and technical decision-making abilities.
• Experience with cloud platforms (AWS, GCP, Azure).
• Deliver well-structured, reusable backend services within deadlines.
• Improve team delivery velocity and reduce bug rate via mentorship & review culture.
• Lead at least one technical initiative (e.g., architecture refactor, DevOps improvement, or AI tool integration).

Leadership & Mindset

• Proven ability to mentor and guide other engineers.
• Strong communication and stakeholder collaboration skills.
• Owner ship mindset—proactively solving problems and suggesting improvements.
• Experience working in AI-assisted development environments is a strong plus.

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.

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.