2020 - 2021
Data Specialist @ GfK - An NIQ company
Sigmaschool student
Ong Chuu Harn
Kuala Lumpur, MalaysiaContact details hidden Joined Sigmo Jul 2026 Last seen today
I build, learn, and experiment with technology while growing toward meaningful milestones.
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Activity
Activity in 2026
25 days streak26 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
3/12
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
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 ↗
Work in progress
Shared along the way
Family 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.jsonDay 7 (Bonus): Personality Quiz
https://stackblitz.com/edit/stackblitz-starters-d5jrhkn8?file=package.jsonDay 6: Quiz App
https://stackblitz.com/edit/stackblitz-starters-oz48ubsq?description=HTML/CSS/JS%20Starter&file=script.js,styles.css,index.html,package.json&terminalHeight=10&title=Static%20StarterBuildroom reflections
What moved the work forward
24 Aug 2026
Mission 4
Understand the Git, GitHub and API
21 Aug 2026
Mission 3
Play werewolf game
20 Aug 2026
Mission 3
An idea for the mock defense and more practice for the algorithms.
19 Aug 2026
Mission 3
Psuedocode and did an algorithm challenge
18 Aug 2026
Mission 3
Learn debugging and find those errors.
17 Aug 2026
Mission 3
Briefing on Mission 3.
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.”