Rex Low

Experience

Learnings & Experiences

I've had the opportunity to get involved in different roles and learn different skills through my years at Revenue Monster — from AI intern to Head of Technology. Below is each role, followed by what the work actually involved.

Timeline

Revenue Monster

Sep 2018 — Present

Mar 2022 — Present

Head of Technology

Own technology, security, and compliance for the Group — leading a 20+ engineer organization across six entities and steering the platform through cloud native technologies and IT compliance

Apr 2021 — Feb 2022

Team Lead, Machine Learning

Ran the ML infrastructure and roadmap, shipping tamper-detection and AI-assisted review systems while cutting deployment time across ML projects by 40%.

Jul 2020 — Mar 2021

Senior Software Engineer, Machine Learning

Built Antenna, the fraud-detection service behind the RM payment system, and integrated ML-driven risk scoring into eKYC onboarding.

Feb 2019 — Jun 2020

Associate AI & IoT Developer

Built payment analytics tooling and cross-border digital-banking prototypes, spanning Go, gRPC, and React Native.

Sep 2018 — Feb 2019

AI Developer (Intern)

Shipped a license-plate recognition system for the WeChat Pay Malaysia launch and an early Python SDK for the Revenue Monster API.

Selected work

What the work was actually about

Five threads running through the roles above — pulled together here rather than repeated role by role.

01

Scale & Leadership

Growing and running a technology organization inside a regulated business.

  • Manage 20+ developers across six entities — frontend, backend, and DevOps.
  • Author IT policy for the Group and act as the key technical voice in bank due-diligence engagements.
  • Evaluated and introduced new technology into the payment platform, contributing to a 30% gain in stability and a 40% cut in cost.
02

Compliance & Trust

Earning the certifications and status that let the business handle real money.

  • Led the payment team to PCI DSS Level 1 certification, clearing the way for card-scheme business and Mastercard Payment Facilitator status.
  • Led the technical redevelopment of the TaPay eWallet, working with Compliance to satisfy Central Bank inquiries and secure Eligible E-Money Issuer status.
  • Own most IT security and compliance matters for the company, including SIEM and File Integrity Monitoring implementation.
03

Platform & Architecture

Rebuilding the payment gateway to hold up under scale.

  • Redesigned transaction processing around a workflow orchestration engine (Temporal), removing distributed-processing bottlenecks and eliminating silently dropped payment orders.
  • Introduced GoBig, a Golang microservice connecting the platform to a data lake, cutting manual work for the operations team.
  • Deployed ArgoCD and provisioned Kubernetes, database clusters, and monitoring stacks Group-wide.
04

AI/ML Roots

Where it started — the machine-learning work that still shapes how I think about systems.

  • Built a multi-stage deep-learning tamper classifier for eKYC, catching manipulated documents at a 2% false-positive rate.
  • Shipped an AI-assisted menu-item filtering system for alacarte.my, cutting manual review load for merchant support.
  • Partnered with the Malaysia Government on eMM2H.com, using blockchain to keep enrolment transactions authentic and verifiable.
05

Key Partnerships

Delivering alongside the institutions and enterprises that depend on the platform.

  • Worked with Visa Global to bring the Visa Offering Platform into the Revenue Monster Merchant Portal, giving merchants a multi-channel loyalty rewards system.
  • Delivered projects with YTL, Axiata Boost Biz, Genting Malaysia, Hong Leong Assurance, Tunas Manja Group, and Selangkah — spanning modernization strategy, architecture, and Bank Negara Malaysia compliance.

Credentials

Certifications & education

Outside of work

A few things I built for the fun of it

2025

Invoice RytView Invoice Ryt →

Invoicing, simplified for developers — generate, track, and manage invoices with a clean, dark-mode-first interface built for freelancers and contractors.

  • SaaS
  • Invoicing
  • Developer Tools

2022

Min Sen AppView Min Sen App →

I helped Min Sen Sports Association Kajang club to build a social app for their members. The idea is to revitalise the club through the use of technology and in turn invite younger locals to commit through the app.

  • React Native
  • Golang

2021

deepSorterView deepSorter →

A recursive sorter for arbitrarily nested objects and arrays, built to simplify payment signature generation.

  • TypeScript
  • npm
  • Open Source

2017

IoT TrashBotView IoT TrashBot →

A Lego EV3 prototype using computer vision to automate recycling sorting — an early implementation on applied Deep learning and computer vision.

  • Computer Vision
  • Deep Learning
  • Robotics
  • IoT

2017

IoT Vending MachineView IoT Vending Machine →

A cashless vending prototype built on QR codes and e-wallets, years ahead of Malaysia's e-wallet adoption curve.

  • IoT
  • Arduino
  • React Native
  • Mobile App Development

Want the fuller picture?

Happy to walk through any of this in more depth — architecture decisions, compliance war stories, or team-building included.

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