2020 - 2021
Data Specialist @ GfK - An NIQ company
Sigmaschool student
Ong Chuu Harn
Kuala Lumpur, MalaysiaContact details hidden Joined Sigmo Jul 2026 Last seen yesterday
I build, learn, and experiment with technology while growing toward meaningful milestones.
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Activity
Activity in 2026
2 days streak94 active days
JanFebMarAprMayJunJulAugSeptOctNovDec
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Working preferences
Availability and rate
- Available
- Now
- Preferred timezones
- +8
- Fluent in
- English, Malay, Mandarin
- Also skilled in
- Word, Excel (Advanced Excel Functions, Power Query, Power Pivot, VBA), SQL, Visio, Power BI, DAX, Access, PowerPoint, OneNote
- CV
- Not uploaded yet
Experience
Where they have worked
2022 - 2023
Analyst @ GfK - An NIQ company
2023 - 2024
Senior Analyst @ GfK - An NIQ company
2025 - 2026
Principal Data Operation Analyst @ NielsenIQ
Side projects
Built outside the curriculum
No side projects added yet.
Education
Studied at
2016 - 2019
Bachelor of Science (Hons) Actuarial Science @ Universiti Tunku Abdul Rahman
Missions completed
Projects built and defended
10/12
Build Your Developer Portfolio Page
Passed 10 Aug 2026
Build a Book Collection Manager
Passed 18 Aug 2026
Debug & Restore the Ledger Balance System
Passed 24 Aug 2026
Build an Activity Discovery Dashboard
Passed 3 Sept 2026
3rdBest build · Cohort 13
Build a Game Collection Dashboard
Passed 10 Sept 2026
Build a Smart Home Security Dashboard
Passed 18 Sept 2026
Build a Movie Search Application with Live Data
Passed 21 Sept 2026
Build a Recipe API
Passed 30 Sept 2026
Build a Social Media API
Passed 8 Oct 2026
Build a Running Community App
Passed 19 Oct 2026
Live defenses & mock interviews
Passed live interviews, verified by an instructor. Watch an attached recording to see the work.
1/3 passed
Certificates
Work that has been verified
Certificate of completion
Presented to
Ong Chuu Harn
Mission 1
Build Your Developer Portfolio Page
Verified 10 Aug 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 2
Build a Book Collection Manager
Verified 18 Aug 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 3
Debug & Restore the Ledger Balance System
Verified 24 Aug 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 4
Build an Activity Discovery Dashboard
Verified 3 Sept 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 5
Build a Game Collection Dashboard
Verified 10 Sept 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 6
Build a Smart Home Security Dashboard
Verified 18 Sept 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 7
Build a Movie Search Application with Live Data
Verified 21 Sept 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 8
Build a Recipe API
Verified 30 Sept 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 9
Build a Social Media API
Verified 8 Oct 2026
View and share certificate ↗
Certificate of completion
Presented to
Ong Chuu Harn
Mission 10
Build a Running Community App
Verified 19 Oct 2026
View and share certificate ↗
Work in progress
Shared along the way
Bootstrap
https://stackblitz.com/edit/stackblitz-starters-xusub9u5?file=index.htmlBus Arrival App
https://stackblitz.com/edit/stackblitz-starters-4wj9uodn?file=index.htmlFamily App · Activity: Food Orders
https://stackblitz.com/edit/stackblitz-starters-zkmkx1oo?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html,package.json&terminalHeight=10&title=Static%20StarterFamily App
https://stackblitz.com/edit/stackblitz-starters-edz6pjls?file=index.html,style.cssLogin
https://stackblitz.com/edit/stackblitz-starters-ppr5k8bl?file=index.htmlDOM
https://stackblitz.com/edit/stackblitz-starters-zntkx8ys?file=index.html,style.css,script.jsStudents List · Activity: Pet Adoption App
https://stackblitz.com/edit/stackblitz-starters-koz2wuen?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html,package.json&terminalHeight=10&title=Static%20StarterTodo App · Activity: Fruit Basket Generator
https://stackblitz.com/edit/stackblitz-starters-pf8n5cgm?file=script.jsFlag Quiz App · Activity: job eligibility checker
https://stackblitz.com/edit/stackblitz-starters-dw979twk?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html&terminalHeight=10&title=Static%20Starterflag-quiz-what-you-are-building
https://stackblitz.com/edit/stackblitz-starters-xh4kjt4t?file=index.html,style.css,script.jsconditionals-exercises
https://stackblitz.com/@ochuuharn/collections/3-0-conditionalsMenu Project · Optional activity: recreate a trickier page
https://stackblitz.com/edit/stackblitz-starters-k1nd5dch?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html&terminalHeight=10&title=Static%20StarterMenu Project · Activity: start a Static project
https://stackblitz.com/edit/stackblitz-starters-ymvbdhty?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html&terminalHeight=10&title=Static%20StarterMenu Project
https://stackblitz.com/edit/stackblitz-starters-qva115ko?file=index.htmlcalculator-bonus-activities
https://stackblitz.com/edit/stackblitz-starters-g7dp4amq?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html,package-lock.json&terminalHeight=10&title=Static%20StarterCalculator Project
https://stackblitz.com/edit/stackblitz-starters-rcmpxtbh?file=index.html,script.jsvariables-coding-exercises
https://stackblitz.com/@ochuuharn/collections/1-0-compulsory-variables-promptfunctions-coding-exercises
https://stackblitz.com/edit/stackblitz-starters-rcmpxtbh?file=script.js,styles.css,index.html,mascot.pngvariables-summary
https://stackblitz.com/@ochuuharn/collections/1-0-compulsory-variables-promptStackBlitz Guide
https://stackblitz.com/edit/stackblitz-starters-euuzru?file=package.jsonBuildroom reflections
What moved the work forward
30 Oct 2026
Mission 11
last class :()
28 Oct 2026
Mission 11
algo workshop
26 Oct 2026
Mission 11
capstone progress
23 Oct 2026
Mission 11
game sessions
22 Oct 2026
Mission 11
checkpoint review
21 Oct 2026
Mission 11
algo workshop
Why I joined Sigmaschool
To build on my experience in data operations and transition into software engineering and AI.
I want to build valuable skills in tech, create things that solve real problems, and have more freedom to shape my career and future.
🛣️ The road
What I was doing before Sigmaschool
To achieve a better knowledge transition from data operations into software engineering and AI, I joined Sigma School to build the technical skills needed to create real-world solutions and grow in the tech industry.
What success looks like 3–6 months from now
Being able to succeed on the job landing in tech.
My goal after I graduate
Get hired as a developer
⚙️ How I work
Hours per week I can realistically commit
28h
How I prefer to learn
Repeat drills until it sticks
What kind of support helps me stay on track
Deadlines and a fixed schedule
How confident I am that I'll complete the programme
10/10
🎲 One interesting fact about me
I’m naturally curious and always eager to learn something new. I enjoy exploring how things work, asking questions, and challenging myself to learn skills outside my comfort zone, especially when it comes to technology, software, and AI.
😬 What I'm most nervous or uncertain about
Keeping up with the paceExplaining my work in interviews
🧭 What I'd want a mentor's help with most
Project ideas and directionInterview preparationCode review and best practicesCareer guidance and job hunting
💬 On Sigmaschool
“In Sigmaschool, there are real-project ideas which allowed the beginner to go through and enhance the website from time-to-time. And, the task is beginner friendly where beginner may not have any idea on where to start. It's also having the tight deadline to push the limits individually.”