Julius Uy

00 // Grid walk

It doesn't matter where you start. It's how you progress from there.

From mobile engineer to the head of national weather engineering. Over two decades in software, I have progressed from mobile development to CTO and Head of Engineering roles across Singapore and Southeast Asia.

My career spans individual contributor work, technical leadership, and people management. I am passionate about developing engineers into leaders — and I actively mentor engineering managers around the globe.

0+

Years in software

0

Teams led & shipped

SG

Home circuit · Singapore

∞

Mentees & counting

01 // Every seat since 2006

Race log

Now

GovTech Singapore

Head of Engineering

Head of Engineering for Singapore's national weather infrastructure — digital public services delivering real-time forecasts, severe weather warnings, and climate data to millions of citizens.

Public infrastructureReal-time systemsClimate data

2023–25

SMRT

Head of Technology

Led the engineering team behind Singapore's commuter super app — MRT maps, real-time bus arrivals, food deals, and loyalty rewards for millions of daily commuters. Early adopter of Amazon Nova.

Amazon NovaiOSAndroidCommuter tech

2021–23

Kydon Group

Chief Technology Officer

CTO of an EdTech startup building intelligent learning platforms — personalized curricula, skills assessment engines, and enterprise upskilling for the Southeast Asian market.

EdTechAI/MLLearning platforms

2020–21

Hubble

VP of Engineering

VP of Engineering at a construction-tech startup — digitizing site inspections, defect management, and project delivery. Built infrastructure for Jewel @ Changi Airport.

ConTechPropTechAWS

2013–20

Rakuten Viki

Head of Engineering · Mobile & TV

From mobile engineer to engineering leadership — scaling the world's leading Asian streaming platform across 11 platforms, 40M+ monthly users, 1B+ minutes viewed monthly, and a fan subtitling community in 150+ languages. Featured at WWDC 2018 and Google I/O.

1B+ min viewed/moGoogle Play AwardsWWDC 201811 platforms

2012–13

Singtel

Senior Software Engineer

Built the MySingtel app — Singtel's flagship self-care platform handling real-time data usage, bill management, roaming controls, and account services for millions of subscribers.

MySingteliOSAndroidTelecom

2010–11

Hoiio

Senior Software Engineer

Mobile developer at a cloud telephony startup — building VoIP calling, SMS APIs, and communication infrastructure used by developers and businesses across Asia.

VoIPCloud telephonyAPIs

2006–10

Navitaire

Software Engineer

Revenue management systems powering the world's leading low-cost carriers. Built fare optimization and inventory controls for New Skies — end-to-end travel commerce for 60+ airlines across 4 continents.

60+ airlinesRevenue mgmt43% of top 100 LCCs

02 // What I build after hours

Off duty

P·01

Weather

Real-time Singapore weather — interactive radar maps, temperature gradients, wind flow, and climate data visualization.

ReactLeafletWeather API

P·02

Polygon Shooter

A browser-based 3D arena shooter built with Three.js. Endless neon waves, level-ups, upgrades — all real-time WebGL.

Three.jsWebGLJavaScript

P·03

Tetris

A polished, browser-native take on the timeless block-stacker — ghost piece, hold queue, hard-drop, and a gravity curve that quietly tightens the screws.

CanvasJavaScriptGame loop

P·04

The other cockpit

MA in Christian Apologetics, Biola University — GPA 3.99/4.0. Eight published papers on philosophy of religion. Full archive in section 05.

PhilosophyTheologySemiotics

03 // What the paddock says

Team radio

CH 01 — Google Live transmission

Julius is one of the best managers I ever worked for. He always encourages individuals to think out loud, apply new ideas and improve themselves. Managing a large team is not easy, helping them improve is harder — but Julius goes one step further to make the team enjoy what they are doing.

Qing Zhong

Google

Julius belongs in the top 1% of engineering managers and leaders. He has the complete balance between IQ and EQ, and uses that to excel in bringing value and purpose to the company and everyone in it. He does not use empty words — he spends a lot of time reading books and research papers to validate his point.

Sean Urgel

Casper Studios

Julius has demonstrated strong technical skills, business acumen and leadership. He is a keen innovator always on the lookout for the latest technologies. One of these ideas resulted in his team being one of the first few adopters of Amazon Nova.

Zhi Hao Lim

Amazon Web Services

Julius has a holistic understanding of technology which makes working with him easy and pleasant. His ability to master both hands-on building and strategizing ways to maximize business outcomes makes him a valuable addition to any company.

Jia Jia Farm

Amazon Web Services

When I first saw Julius at work, I immediately understood what the ideal CTO should be. Julius is a walking masterclass in how servant leadership — combined with deep experience, raw intellect, and a knack for mentorship — can transform entire teams and companies. Doesn't hurt that he's wicked funny.

Caroline Wong

Head of Operations

Anybody, regardless of seniority, would be lucky to have worked with or even seen Julius at work. Aside from his firm but personable leadership and his quick wit and sharp mind — I have always respected the way Julius manages communication. I can see why he is so respected from the respect he shows his fellow teams.

Minzy Tan

Bytedance

04 // Writing from the garage

Press room

A·01

Android 17 and the VVC Video Compression Standard

If you've spent any meaningful time in the trenches of a video streaming platform, you know compression matters.

A·02

05 // Classified — now declassified

The archive

Academic papers from my MA in Christian Apologetics at Biola University — GPA 3.99/4.0. Different circuit, same obsession with getting the reasoning right.

The Only True God: Maximal Greatness through the Lens of Tri-personal Monotheism

The Trinity fulfills the criteria of a maximally great being without embracing paradoxes.

Semiotics and Ontological Argument: The Existence of God from the Axioms of Communication

The communication model supports a stronger ontological argument via the referable nature of a maximally great being.

A Modified Irenaean Theodicy

Creation as an ongoing process aiming for genetic perfection — addressing flaws in previous theodicies.

Semiotics and the Ontology of Communication — The Case Against Nominalism

Realists and nominalists both depend on a communication paradigm — challenging nominalists to explain their ontology without brute facts.

Carmen Christi: The Socio-cultural Backdrop of Philippians 2:5–11

Christ's pre-existence and the theological implications of the 'form of God'.

Full archive on Academia.edu ↗

JULIUS UY Engineering leader. 20+ years building software and the teams behind it — from mobile pit lane to national infrastructure.

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