Engineering at Scale

GARRICK

Driven by curiosity.

Mastered by experience.

Engineering Journey

Lead Software Engineer, Backend @ Grab

Dec 2022 - Present

  • Led design and development of cross-bank backbone data-sharing systems connecting Superbank, GXS, GXB, and Grab, enabling high-reliability merchant financing.
  • Owned Grab’s mission-critical Partner APIs, serving global enterprise brands including McDonald's, KFC, and Starbucks.
  • Elevated menu-sync performance SLA from 65% (≤5 min) to 99% (≤1 min), drastically improving merchant experience.
  • Optimized system architecture to reduce upstream load by ~5,000 QPS through efficient dependency management.
  • Served as company-wide On-Call Lead, orchestrating incident recovery and cross-team architectural post-mortems.
  • Proficient in Golang, Java, and AWS infrastructure (RDS, Redis, SQS, EC2) with IaC using Terraform.

Senior Software Engineer @ Astro

Sept 2021 - Dec 2022

  • Architected system designs for high-impact broadcasting and media sales projects.
  • Automated broadcast scheduling tasks with AA360, reducing 1 workman-week of effort to less than 5 hours.
  • Built automated report gathering platforms using Puppeteer and AWS EC2 for Media Sales teams.
  • Streamlined customer onboarding systems utilizing AWS Lambda, DynamoDB, Cognito, and S3.
  • Developed Ads CMS platforms bridging clients to internal broadcasting systems.

Senior Full Stack Engineer @ Bjak

July 2020 - Sept 2021

  • Built Bjak.my, a high-traffic self-checkout vehicle insurance platform using ExpressJs and MongoDB.
  • Developed an asynchronous worker swarm using Redis and Bull to handle thousands of forms daily.
  • Led engineering for new verticals including Bjak Life Insurance and Bjak Doctor (Telehealth).
  • Implemented critical security and reliability features: rate limiting, IP blocking, and real-time alert systems.
  • Integrated WebRTC (Twilio) for doctor-patient video streaming and Twilio for automated WhatsApp bots.

Full Stack Software Engineer @ Beero Solutions

July 2018 - July 2020

  • Consulted for startups to transform business models into digital-first products.
  • Built Stem.my, an online tutor platform serving 10+ tuition centers using PHP and MySQL.
  • Managed multi-tenant shared server environments to optimize costs for emerging businesses.

Archive Project

D:\archive\legendary-artifact

YearDescriptionTypeBuilt WithLink
2020Open Source Survey SystemOpen Source .  CodeIgniter .  PHP .  MySQL .  Bootstrap .  Angular
2020Crowd-sourcing Platform for Mask and SanitizerPublic Utility .  CodeIgniter .  PHP .  MySQL .  Bootstrap .  JQuery .  Google API
2019Mystery Travel Platform - FlytorPrivate SaaS .  CodeIgniter .  PHP .  MySQL .  Bootstrap .  JQuery .  Google API

Get In Touch

If you are interested in getting me involved in your upcoming project, my inbox is always open. Just drop me an email and I will contact you as soon as possible.

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