Senior Front End Engineer

Catalyst; Jakarta Pusat; On-site; IDR 700,000,000 - 950,000,000; Full time

Job summary

Catalyst is seeking a Front End Engineer to translate complex requirements into detailed UI designs and develop highly-responsive interfaces using React.

You will own quality across the project, write technical documentation, and collaborate with FE/BE/QA/Product teams to ensure performance and scalability. Strong leadership experience is a plus.

Qualifications

• 10+ years of software development experience.
• 5+ years hands-on with React.js.
• Strong knowledge of JavaScript, CSS, HTML.
• Experience with SSR and Next.js.
• Experience with MicroFrontend architecture.
• Experience with Jest for unit testing.
• Excellent troubleshooting and communication skills.
• Bachelor's degree in CS/IT or related field.
• Experience leading development teams is a plus.
• GraphQL experience is a plus.

Responsibilities

• Translate complex requirements into detailed designs and implement responsive UI components using React.
• Develop high-performing web applications and ensure scalability by addressing bottlenecks.
• Write technical documentation and participate in code reviews.
• Troubleshoot, debug, and monitor web app performance to optimize user experience.
• Collaborate with FE/BE/QA/Product teams to resolve project issues and deliver quality results.
• Help other team members and lead development efforts when needed.

Skills

React.js

Next.js

JavaScript

CSS

HTML

Unit testing (Jest)

SSR/Streaming SSR

MicroFrontend

Performance optimization

Browser debugging

Communication skills

Project management

Leading development teams

GraphQL

Education

Bachelor’s degree in Computer Science/Information Technology or related field

Tools

Jest

Job description

About the job

As a Front End Engineer, you will translate complex functional and technical requirements into detailed designs and implement responsive user interface components. You will be responsible for writing technical documentation, troubleshooting and debugging codes, and monitoring and improving web application performance. Additionally, you will coordinate and help other team members to find solutions for project problems.

Job Description:

• Developing and implementing Highly-responsive user interface components using React
• Translates complex functional and technical requirements into detailed design and high-performing web applications.
• Research or explore any new technologies to complement or improve requirements and current technologies.
• Be involved as a developer on the project and be responsible for the quality of your part or for the entire project
• Write technical documentation, individually or with the help of other developers.
• Work independently and deliver quality results without the need of constant supervision.
• Contributing in writing and reviewing code review.
• Monitor and improve web application performance.
• Able to troubleshooting and debugging codes.
• Coordinate and Help other team members (FE/BE/QA/Product) to find solutions for the problems they have on the project.

Requirements:

• 10+ years of software experience
• 5+ years hands-on experience with React.js
• High motivated person, understand how optimize application performance and ensure scalability by identifying and addressing bottlenecks, with a highly initiative to tune up performance.
• Bachelor’s degree or higher in Computer Science, Information Technology, or a similar field.
• In-depth knowledge of JavaScript, CSS, HTML.
• Proficiency in one or more JS frameworks (ReactJs & NextJS)
• Experience with unit-testing frameworks (Jest).
• Experience with server-side rendering (SSR / Stream SSR) and NextJs
• Experience in MicroFrontend
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Excellent communication skills.
• Good project management skills.
• Experience in leading development teams is a plus.
• Experience in GraphQL is a plus.