Senior Full-Stack Developer (Next.js, Node.js, React)
Senior Full-Stack Developer at LLL Inc.
Location: Kuala Lumpur, Malaysia (Hybrid: 3 days office, 2 days remote) Experience: 5+ years
About the Role
Join our core development team building enterprise web applications and SaaS products for Japanese clients. You’ll work on projects ranging from e-commerce platforms to AI-powered business intelligence tools, using modern technologies like Next.js, React, and cloud infrastructure.
Key Responsibilities
- Design and build scalable web applications using Next.js, React, Node.js
- Develop responsive, pixel-perfect UIs following Japanese design standards
- Create RESTful and GraphQL APIs for complex business logic
- Deploy and maintain applications on AWS/Azure/GCP
- Collaborate with Japanese clients (bilingual communication skills valued)
- Participate in code reviews and mentor junior developers
- Write comprehensive tests (unit, integration, E2E)
- Document technical specifications in English (Japanese a plus)
Required Qualifications
- 5+ years professional software development experience
- Expert in React and Next.js (App Router, Server Components, SSR/SSG)
- Strong Node.js backend experience (Express, NestJS, or Fastify)
- Proficient in TypeScript and modern JavaScript (ES6+)
- Experience with relational databases (PostgreSQL, MySQL)
- Solid understanding of RESTful API design and GraphQL
- Familiarity with cloud platforms (AWS, Azure, or GCP)
- Version control with Git and GitHub/GitLab workflows
- Excellent problem-solving and debugging skills
- Strong communication in English (written and verbal)
Preferred Qualifications
- Japanese language proficiency (N3 or higher)
- Experience with microservices architecture
- Prior work with Japanese clients or companies
- DevOps skills (Docker, Kubernetes, CI/CD)
- AI/ML integration experience (OpenAI, Anthropic Claude)
- Contributions to open source projects
- Bachelor’s degree in Computer Science or related field