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Frontend Developer with 5+ years building production web and mobile applications across e-commerce, enterprise dashboards, and B2B platforms. Strong in React, TypeScript, and modern state/data tooling (TanStack Query/Router, Zustand), integrating auth and security best practices. Hands-on experience with payments (Stripe, 3DS, Payment Element), role-based access controls, and building SEO-optimized marketing pages and internal order management dashboards. Collaborative with backend engineers to diagnose production issues and co-design robust RESTful APIs.…Frontend Developer with 5+ years building production web and mobile applications across e-commerce, enterprise dashboards, and B2B platforms. Strong in React, TypeScript, and modern state/data tooling (TanStack Query/Router, Zustand), integrating auth and security best practices. Hands-on experience with payments (Stripe, 3DS, Payment Element), role-based access controls, and building SEO-optimized marketing pages and internal order management dashboards. Collaborative with backend engineers to diagnose production issues and co-design robust RESTful APIs.

Marcus Chan

Front-End Developer, Web Developer, Software Engineer, +2

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Frontend Developer with 5+ years building production web and mobile applications across e-commerce, enterprise dashboards, and B2B platforms. Strong in React, TypeScript, and modern state/data tooling (TanStack Query/Router, Zustand), integrating auth and security best practices. Hands-on experience with payments (Stripe, 3DS, Payment Element), role-based access controls, and building SEO-optimized marketing pages and internal order management dashboards. Collaborative with backend engineers to diagnose production issues and co-design robust RESTful APIs.…Frontend Developer with 5+ years building production web and mobile applications across e-commerce, enterprise dashboards, and B2B platforms. Strong in React, TypeScript, and modern state/data tooling (TanStack Query/Router, Zustand), integrating auth and security best practices. Hands-on experience with payments (Stripe, 3DS, Payment Element), role-based access controls, and building SEO-optimized marketing pages and internal order management dashboards. Collaborative with backend engineers to diagnose production issues and co-design robust RESTful APIs.

Available to hire

Frontend Developer with 5+ years building production web and mobile applications across e-commerce, enterprise dashboards, and B2B platforms. Strong in React, TypeScript, and modern state/data tooling (TanStack Query/Router, Zustand), integrating auth and security best practices.

Hands-on experience with payments (Stripe, 3DS, Payment Element), role-based access controls, and building SEO-optimized marketing pages and internal order management dashboards. Collaborative with backend engineers to diagnose production issues and co-design robust RESTful APIs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Beginner

Language

English

Fluent

Work Experience

Frontend Developer at Global Integrated Communications

October 1, 2025 - Present

Architect and build customer-facing and internal React/TypeScript applications using TanStack Router and TanStack Query integrated with a Spring Boot backend. Designed core frontend architecture for an e-commerce platform, including Zustand-based auth/session state, guest-to-authenticated cart merge logic, and HttpOnly cookie JWT authentication. Implemented Stripe payment flows (PayNow, GrabPay, 3DS, Payment Element) with CSRF/XSS mitigation and CSP configuration. Built an internal order management dashboard with server-side paginated/filterable/sortable tables, expandable rows, Excel export, and role-based access control. Developed responsive, SEO-optimized marketing landing pages and collaborated on REST API design, CORS configuration, and production issue diagnosis.

Software Engineer at Y3 Technologies

October 1, 2020 - February 1, 2024

Led frontend development of a B2B warehouse management app, initially building the native Android version with MVVM before migrating to React Native. Partnered with UI/UX designers and backend engineers (including an overseas tech lead) to ship REST API-integrated features. Built a comprehensive Jest test suite (unit, integration, UI) and contributed to CI/CD pipeline improvements for streamlined deployments. Worked in 2-week Agile sprints (JIRA) and mentored 2 interns on mobile frontend implementation.

Software Engineer Intern at I-Sprint Innovations

January 1, 2019 - June 1, 2019

Built mobile applications focusing on UI/UX and data visualization, including a temperature-logging app with dynamic graph rendering. Developed interfaces for QR code scanning and tabular data display using third-party frontend libraries.