Hua Sheng
Peanut

Experience

Four years across fintech, infrastructure, and startup engineering โ€” the roles that built the way I think.


01

Software Engineercurrent

December 2025 - Present
Astro logo
AstroยทKuala Lumpur, Malaysia
3 months ยท current
  • โ€“Cut page load time by 30% and bundle size by 20% through code splitting and lazy-loading โ€” shipping at scale for Malaysia's most-watched media platform.
  • โ€“Built and shipped high-traffic user-facing features end-to-end with Next.js and React.
  • โ€“Designed a reusable component system to satisfy complex UI/UX requirements across multiple product surfaces.
02

Traveller

February 2025 - October 2025
Career BreakยทNew Zealand
9 months
  • โ€“Built personal projects independently โ€” including this portfolio โ€” shipping end-to-end across design, frontend, and deployment.
  • โ€“Spent nine months travelling in New Zealand, gaining international perspective and a sharper eye for product design.
  • โ€“Pursued self learning outside a corporate environment, deepening expertise and chasing sceneries.
03

Full Stack Developer

March 2024 - February 2025
Mula Labs logo
Mula LabsยทKuala Lumpur, Malaysia
11 months
  • โ€“Reduced API latency through caching and parallel request handling, improving performance across fintech product flows.
  • โ€“Designed and built RESTful APIs and full-stack features powering in-house web applications from scratch.
  • โ€“Delivered the team's first blockchain integration โ€” connecting product flows to on-chain smart contracts using Solidity.
04

Software Engineer

August 2023 - March 2024
PayNet logo
PayNetยทKuala Lumpur, Malaysia
8 months
  • โ€“Optimized frontend and backend performance for Malaysia's national payment infrastructure, measurably improving system responsiveness.
  • โ€“Shipped features end-to-end โ€” from business requirements through integration, QA, and production release.
  • โ€“Triaged and resolved live production incidents across critical payment systems, improving reliability and uptime.
05

Web Developer

December 2021 - April 2023
LITKOD logo
LITKODยทKuala Lumpur, Malaysia
1 year 5 months
  • โ€“Scaled backend systems to sustain 20k concurrent users at peak load without performance degradation.
  • โ€“Built REST APIs and webhook integrations bridging internal platforms with third-party services.
  • โ€“Refactored the entire JavaScript codebase to TypeScript, eliminating runtime type errors and improving long-term maintainability.