Front End Developer

Rolling Glory; Kota Bandung; On-site; IDR 200.000.000 - 300.000.000; Full time

Job summary

A technology company is seeking a Frontend Developer in Kota Bandung, Indonesia, to design and maintain high-quality applications using React. The role requires 3–6+ years of experience, with a strong focus on frontend security and transaction-based systems. Candidates should have expertise in JavaScript and TypeScript. The position involves mentoring junior developers and participating in architectural decisions. Competitive salary and opportunities for professional growth are offered.

Qualifications

• 3–6+ years of experience as a Frontend Developer.
• Strong expertise in React, JavaScript, and TypeScript.
• Experience in banking, fintech, or financial services.

Responsibilities

• Design, develop, and maintain secure, scalable frontend applications using React.
• Implement transaction-based and form-heavy user interfaces.
• Optimize application performance, accessibility, and responsiveness.

Skills

React

JavaScript

TypeScript

Frontend security

Transaction-based systems

State management

API integration

Attention to detail

Ownership mindset

Job description

Responsibilities

• Design, develop, and maintain secure, scalable, and high-quality frontend applications using React
• Implement transaction-based and form-heavy user interfaces with a strong focus on correctness and usability
• Ensure frontend security best practices, including secure session handling, data masking, and safe browser storage usage
• Collaborate closely with backend, QA, security, and product teams to deliver end-to-end, reliable user flows
• Implement multi-step flows (validation, confirmation, review, submission, receipt) for critical financial actions
• Handle error states and edge cases gracefully with clear, traceable, and user-safe messaging
• Optimize application performance, accessibility, and responsiveness
• Integrate frontend applications with REST / GraphQL APIs
• Write clean, maintainable, and well-documented code
• Develop and maintain reusable components and design systems
• Participate in code reviews to ensure quality, consistency, and security standards
• Support controlled releases, bug fixes, and post-production monitoring
• Identify and mitigate frontend-related risks in transaction and data handling
• Contribute to technical discussions, estimations, and architectural decisions (senior level)
• Mentor junior frontend developers and promote best practices (senior level)

Requirements

• 3–6+ years of experience as a Frontend Developer
• Strong expertise in React, JavaScript, and TypeScript
• Experience in banking, fintech, or financial services
• Solid understanding of frontend security and transaction-based systems
• Experience with state management and API integration
• Strong attention to detail, risk awareness, and ownership mindset