I’m a frontend engineer with 6 years of production experience building responsive React and TypeScript applications, and shipping production React Native mobile features across crypto, telco, and e-commerce. I enjoy performance-critical UI work—optimizing rendering, managing server state, and building shared component and hook patterns that keep complex flows maintainable. Most recently at BitMEX, I owned performance-critical trading experiences on live websocket data, rebuilding order flows with TanStack Query and improving responsiveness through memoization and careful cache updates. Previously at SingTel, I helped modernize app navigation and auth-token renewal, and introduced a config-driven analytics approach that enabled teams to adjust instrumentation without changing frontend code.…

Vanessa Loh Jing Yi9

I’m a frontend engineer with 6 years of production experience building responsive React and TypeScript applications, and shipping production React Native mobile features across crypto, telco, and e-commerce. I enjoy performance-critical UI work—optimizing rendering, managing server state, and building shared component and hook patterns that keep complex flows maintainable. Most recently at BitMEX, I owned performance-critical trading experiences on live websocket data, rebuilding order flows with TanStack Query and improving responsiveness through memoization and careful cache updates. Previously at SingTel, I helped modernize app navigation and auth-token renewal, and introduced a config-driven analytics approach that enabled teams to adjust instrumentation without changing frontend code.…

Available to hire

I’m a frontend engineer with 6 years of production experience building responsive React and TypeScript applications, and shipping production React Native mobile features across crypto, telco, and e-commerce. I enjoy performance-critical UI work—optimizing rendering, managing server state, and building shared component and hook patterns that keep complex flows maintainable.

Most recently at BitMEX, I owned performance-critical trading experiences on live websocket data, rebuilding order flows with TanStack Query and improving responsiveness through memoization and careful cache updates. Previously at SingTel, I helped modernize app navigation and auth-token renewal, and introduced a config-driven analytics approach that enabled teams to adjust instrumentation without changing frontend code.

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Experience Level

Expert
Expert

Language

English
Fluent

Work Experience

Software Engineer (Mobile) at BitMEX Singapore
July 1, 2025 - August 31, 2026
Owned performance-critical trading flows in a React Native mobile app using live websocket data for order entry, market data streaming, and responsive order editing. Migrated order fetching from Redux to TanStack Query, refactored order-size calculations into shared memoized utilities to reduce per-tick re-renders (validated with React Profiler), and added tests across contract types, increasing mobile’s share of total order volume from 2% to 5%. Refactored a large order form into shared calculation utilities and reusable UI components, using useDeferredValue to keep inputs responsive and updating TanStack Query cache directly from websocket messages. Led a KYC onboarding overhaul (consolidating verification with Sumsub, reducing screens, splitting logic into tested hooks), improving daily signup drop-off by 10%. Investigated and helped mitigate an Android ANR on a live price chart caused by an off-screen WebView continuing its render loop and websocket feed, contributing to bringing
Senior Software Engineer at SingTel (Singapore Telecommunications Limited)
April 1, 2023 - July 31, 2025
Diagnosed scaling risks from duplicated API logic and deeply nested navigator stacks, then drove an architecture overhaul by redesigning navigation and implementing a shared auth-token renewal utility; the pattern was adopted app-wide to replace legacy module code. Architected a config-driven analytics package that loads event schemas per app context and enriches events with session-persisted user data before dispatching to Firebase, enabling teams to adjust tracking via config instead of frontend changes. Redesigned the bills-and-payment flow to reduce user friction and cut GIRO setup time from 2 weeks to 15 minutes. Redesigned plan-and-contract details for clarity and accessibility, reducing roughly 1,000 support calls and saving about $5,000 monthly.
Senior Software Engineer at Shopee
July 1, 2022 - March 31, 2023
Led a team of 2–3 engineers, mentoring new members, running code reviews, and supporting product feasibility studies and technical design reviews. Built high-traffic item cards to improve user engagement. Delivered reusable UI components to Shopee’s shared library used across product teams, including development of search-result item card features such as automatic fashion image playback.
Software Engineer at Shopee
July 1, 2020 - June 30, 2022
Developed major features for search-result item cards, including automatic fashion image playback. Contributed reusable components to Shopee’s shared UI library used across product teams.
Software Engineer Intern at StaffAny
January 1, 2020 - June 30, 2020
Built mobile and web features with supporting backend services, and led delivery of timesheet discrepancy handling.

Education

Bachelor of Computing (Honours) at National University of Singapore
August 1, 2016 - May 31, 2020

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Telecommunications, Retail, Gaming