Senior Frontend Architect: Build Scalable, Fast Web Apps

ONL Biz Solutions; Kuala Lumpur; On-site; MYR 120,000 - 180,000; Full time

Job summary

ONL Biz Solutions in Malaysia is seeking a Senior Frontend Engineer to design, develop, and maintain scalable web applications. You will build reusable frontend architectures and collaborate with backend teams in a microservices environment.

You will mentor junior developers, contribute to architectural decisions, and ensure performance, accessibility, and code quality. Experience with React or similar frameworks and REST/GraphQL is required, with exposure to BFF services using Node.js.

Qualifications

• 5+ years of experience building and maintaining production-grade web applications.
• Hands-on experience with modern frontend frameworks (React, Vue, Svelte, etc.).
• Ability to learn and become productive with new technologies when needed.
• Experience consuming and integrating RESTful APIs and/or GraphQL services.
• Experience building and maintaining BFF services using Node.js or similar technologies.
• Familiarity with microservices architecture and distributed systems.
• Strong debugging, troubleshooting, and root-cause analysis skills.
• Good understanding of frontend performance optimization, accessibility, and modern web standards.
• Strong focus on code quality, maintainability, and reliability.

Responsibilities

• Design, develop, and maintain scalable, high-performance web applications.
• Build reusable frontend architectures and component libraries.
• Design, build, and maintain Backend-for-Frontend (BFF) services that support frontend applications.
• Collaborate with backend teams to define APIs and deliver seamless integrations within a microservices environment.
• Debug complex issues across frontend applications, APIs, and distributed systems.
• Optimize application performance, accessibility, security, and overall user experience.
• Evaluate and adopt new technologies, frameworks, and development practices when they provide meaningful value.
• Mentor junior developers through coaching, code reviews, and knowledge sharing.
• Contribute to technical discussions, architectural decisions, and engineering standards.
• Write clean, testable, and maintainable code.

Skills

Frontend development

React/Vue/Svelte

REST/GraphQL

Node.js

Microservices

Performance optimization

Code quality

Mentoring

Tools

CI/CD

Docker

Cloud (AWS/GCP/Azure)

Job description

ONL Biz Solutions in Malaysia is seeking a Senior Frontend Engineer to design, develop, and maintain scalable web applications. You will build reusable frontend architectures and collaborate with backend teams in a microservices environment.

You will mentor junior developers, contribute to architectural decisions, and ensure performance, accessibility, and code quality. Experience with React or similar frameworks and REST/GraphQL is required, with exposure to BFF services using Node.js.