Senior Frontend Engineer: Enterprise React Architect

FPT ASIA PACIFIC PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

FPT Asia Pacific Pte. Ltd. is seeking a Senior Frontend Engineer to design, build, and optimize staff-facing web apps for an enterprise client engagement platform.

You will lead client-side architecture for RMs and Back-Office teams, enabling high-performance web interfaces for complex case management and workflow mapping. The role emphasizes React 19.x, TypeScript, lightweight frameworks (Preact), and BPMN/DMN/form engines integration, with deep collaboration across UX/UI, backend services, and

Qualifications

• 5–8+ years in frontend/web engineering with 2+ years in a senior or lead role.
• Core Web Stack: React 19.x, TypeScript, JavaScript (ES6+), HTML5, CSS3/SASS, and modern CSS-in-JS/utility-first frameworks.
• Embedded BPM Tools: Hands-on with bpmn-js, dmn-js, and forms-js.
• Alternative Runtimes: Experience with Preact for lightweight, performance-critical components.
• State Management & Routing: Redux Toolkit, Zustand, React Query, React Router.

Responsibilities

• Design client-side architecture for multi-tab, dynamic form portals using React 19.2.4 and TypeScript.
• Integrate BPM form modelers and form engines with bpmn-js, dmn-js, and forms-js for dynamic rendering and workflow visualization.
• Drive client-side performance: code-splitting, bundle size reduction, and lightweight component usage.
• Collaborate with UX/UI, backend microservices, and solution architects to deliver secure enterprise web interfaces.

Skills

React 19.x

TypeScript

JavaScript ES6+

HTML5

CSS3/SASS

CSS-in-JS

Preact

Redux Toolkit

Zustand

React Query/TanStack Query

Tools

bpmn-js

dmn-js

forms-js

Vite

Webpack

Babel

Jest

React Testing Library

Cypress

Playwright

Job description

FPT Asia Pacific Pte. Ltd. is seeking a Senior Frontend Engineer to design, build, and optimize staff-facing web apps for an enterprise client engagement platform.

You will lead client-side architecture for RMs and Back-Office teams, enabling high-performance web interfaces for complex case management and workflow mapping. The role emphasizes React 19.x, TypeScript, lightweight frameworks (Preact), and BPMN/DMN/form engines integration, with deep collaboration across UX/UI, backend services, and