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.

Expertise

Distributed Systems Technical Strategy Golang Java TypeScript Node.js Python Next.js React AWS (EC2, SQS, S3, RDS)Terraform (IaC)Kubernetes Redis PostgreSQL MongoDB RPA & Automation

Archive Project

D:\archive\legendary-artifact

Year	Description	Type	Built With	Link
2020	Open Source Survey System	Open Source	. CodeIgniter . PHP . MySQL . Bootstrap . Angular
2020	Crowd-sourcing Platform for Mask and Sanitizer	Public Utility	. CodeIgniter . PHP . MySQL . Bootstrap . JQuery . Google API
2019	Mystery Travel Platform - Flytor	Private 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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