Senior Frontend Engineer (ReactJS)

Michael Page; Daerah Khusus Ibukota Jakarta; On-site; IDR 668.560.000 - 1.002.842.000; Full time

Job summary

A leading e-commerce organization in Jakarta is seeking a Senior Frontend Engineer to develop scalable frontend applications and mentor junior engineers. The ideal candidate has over 6 years of experience in modern JavaScript and strong React.js expertise. This role offers a collaborative culture and opportunities for professional growth.

Benefits

Collaborative company culture

Professional development opportunities

Qualifications

• 6+ years of experience in modern JavaScript with strong React.js expertise.
• Solid knowledge of HTML5 and CSS.
• Experience with performance audits and Web Vitals optimization.

Responsibilities

• Develop and maintain high-performance, scalable frontend applications.
• Make architectural decisions and collaborate with teams.
• Mentor junior and mid-level engineers.

Skills

Modern JavaScript

React.js

HTML5

CSS

GitLab CI/CD

Performance Optimization

Testing (Cypress, React Testing Library)

Education

Bachelor's degree in IT, Computer Science, or related fields

Tools

GitLab

ESLint

SonarQube

Docker

Kubernetes

Job description

• Opportunity to grow scalable e-commerce platform
• Participate in impactful technology projects

About Our Client

The hiring company is a leading organisation in the e-commerce sector with continuous effort to drive tech innovations.

Job Description

As a Senior Frontend Engineer, your main responsibilities will include:

• Develop and maintain high-performance, scalable, and reliable frontend applications.
• Make architectural decisions and collaborate with backend, product, and design teams.
• Troubleshoot complex issues using advanced tools like memory profiling and Lighthouse.
• Implement SSR/SSG frameworks to enhance SEO and content delivery.
• Manage CI/CD pipelines for smooth deployments via GitLab.
• Promote best practices in code quality, testing, and documentation.
• Mentor junior and mid-level engineers and provide technical leadership.
• Build user-centric features with a focus on usability and responsiveness.

The Successful Applicant

A successful Senior Frontend Engineer should have:

• Bachelor's degree in IT, Computer Science, or related fields.
• 6+ years of experience in modern JavaScript, including advanced concepts (Closures, Currying, Promises) and strong React.js expertise for building scalable interfaces.
• Solid knowledge of HTML5, CSS, and CSS Modules.
• Experience with GitLab CI/CD, performance audits, and Web Vitals optimization.
• Experience with React Testing Library, ESLint, SonarQube, and Cypress.
• Understanding of observability, logging, and monitoring practices.
• Exposure to monolithic and micro-frontend architectures.
• Basic knowledge of Docker and Kubernetes.

What's on Offer

• A collaborative and supportive company culture.
• Professional development and growth opportunities.

If you are passionate about frontend development and eager to make an impact, we encourage you to apply.