At home in Singapore.
About me
An engineer by trade.
A builder by curiosity.
Software engineer · Builder · Teacher · Investor
I’m Husny Jeffrey. Born in Galle, Sri Lanka, I’ve called Singapore home since early 2018. For more than a decade, I’ve helped teams build reliable software. Outside work, I build products around real problems, share what I learn, and mentor people figuring out their next step.
01 / What I do
My work
At Grab, I help keep Promos & Rewards reliable for millions of people across Southeast Asia. My work brings together test strategy, automation, and a deep understanding of how products behave in the real world.
Beyond my day job, I turn problems I care about into practical products.
02 / The journey
A decade of building trust in software.
- May 2022 – Present · Singapore
Grab — Senior SET (Software Engineer in Test) - Sep 2019 – May 2022 · Singapore
Illumina — Senior Software Test Engineer - Apr 2018 – Sep 2019 · Singapore
DBS Bank — Senior Quality Engineer - 2013 – 2018 · Sri Lanka
Sysco LABS · Pearson · Virtusa — Quality Engineering roles
03 / Giving back
Sharing what I learn
I turn what I’ve learned into useful guidance for others. I write experience-based guides on life in Singapore, technology careers, and AI evaluation. I’ve also taught more than 2,000 students through my stock-market courses and mentor professionals one-on-one through Topmate, where I’m rated 5.0★ across 100+ reviews and rank among the top 1%.
04 / In conversation
Beyond the written word.
Conversations on money, policy, technology, and building in public.
🎙️ Podcast Money Mindset for Software Engineers
A casual conversation with Shafraz Rahim about building small income-generating assets and how I think about each expense as something an asset could eventually cover.
Watch →
🎙️ Podcast How AI Has Reshaped the IT Industry
A conversation with Prasad of PSR Vlog about what AI has changed for engineers and the road ahead.
Watch →
🎙️ Podcast Strengthening Sri Lanka's State Revenue
A conversation with Sanjaya Elvitigala about the policy proposal I submitted to the Government of Sri Lanka.
Watch →05 / In their words
What people say
Undoubtedly one of the best Quality Engineers I have worked with—a full-stack QE, well organized and methodical, with a true intent of sharing knowledge.
Husny is a full-stack Test Engineer who goes above and beyond to understand our products deeply, crafting detailed test scenarios and driving proactive automation.
Husny clarified all my doubts with patience and clarity. I highly recommend him to anyone looking for job opportunities in Singapore.
As a complete beginner to investing, this session covered all the basics I needed—and doing it for free, with real generosity, is rare.
06 / Away from the keyboard
The person behind the work.
- I’m married to an amazing nurse.
- Developer friends like to tease me by calling me “World Best QA.”
- Two coffees a day keep me running. ☕️
- Put on a movie and I can fall asleep almost instantly.
🏋️ Finished HYROX Singapore — 1:59:02, holding an average heart rate above 170 throughout the event in April 2026.
Building a better life takes courage, patience, and consistent effort. Define success on your own terms, push beyond your comfort zone, and improve by 1% every day. Try, learn, adapt, and keep moving forward.