iiinova — where your digital self keeps evolving

Claudia Ng @ds-claudia.bsky.social · 11/06/2026

I received my first donation of $10 to my AI language learning product, CantoAI! It's a small amount, but I'd created something that at least one person values. If you've been procrastinating out of fear: it doesn't get less scary, you just do it anyway.

000

Claudia Ng @ds-claudia.bsky.social · 07/01/2026

I built an AI to help people learn Cantonese. I forgot about it over Christmas. API credits expired. For two weeks, the AI returned “I don’t understand, please try again” for every query. No errors, no alerts. Users dropped off quietly.

100

Claudia Ng @ds-claudia.bsky.social · 21/10/2025

To all the engineers who got paged during the AWS outage last night: I feel for you. Being on-call is rough. Being on-call for something you can’t fix is existentially rough. You’re out here rebooting servers at 3 a.m., praying the cloud gods show mercy. Take a long nap today.

020

Claudia Ng @ds-claudia.bsky.social · 13/10/2025

When I was learning Python, I kept forgetting everything. I’d ace a tutorial… then freeze the next day staring at a blank screen. What helped wasn’t more studying. It was more doing. Here's what I would tell myself if I could go back in time 👇

100

Claudia Ng @ds-claudia.bsky.social · 29/09/2025

In the past 2 weeks, 85 people tried my Cantonese AI partner: 213 conversations 993 interactions A couple users came back 6–7 days straight Most dropped after day 1 Now I’m stuck: Do I keep fixing bugs + adding features? Or pause and set up Stripe to see if anyone pays?

000

Claudia Ng @ds-claudia.bsky.social · 29/09/2025

I got a “fan message” for my AI prototype!! It wasn’t about the tech. It wasn’t about features. It said: “Thank YOU so much for making this. I love it. I will keep going.” 🥹

010

Reposted by Claudia Ng

Towards Data Science @towardsdatascience.com · 03/09/2025

@ds-claudia.bsky.social explains why domain expertise often outweighs algorithmic complexity. In this Author Spotlight, she reflects on her path from corporate ML to freelance AI, mentoring newcomers, and the lessons learned along the way.

towardsdatascience.com

“My biggest lesson was realizing that domain expertise matters more than algorithmic complexity.“ | Towards Data Science

Claudia Ng reflects on real-world ML lessons, mentoring newcomers, and her journey from corporate ML to freelance AI.

001

Claudia Ng @ds-claudia.bsky.social · 19/08/2025

Woke up to see AI Weekender ranked #51 in Tech on Substack 🎉 I started on Jan 23 with one goal: publish every Thursday. Some posts hit, others sank. But showing up each week built momentum. Biggest lesson? Consistency compounds. aiweekender.substack.com

130

Reposted by Claudia Ng

Towards Data Science @towardsdatascience.com · 14/08/2025

✨ In our latest Author Spotlight, @ds-claudia.bsky.social, who successfully shifted from a corporate role to freelance, provides hard-won advice on navigating career paths, mentoring newcomers, and building solutions you truly own.

towardsdatascience.com

“My biggest lesson was realizing that domain expertise matters more than algorithmic complexity.“ | Towards Data Science

Claudia Ng reflects on real-world ML lessons, mentoring newcomers, and her journey from corporate ML to freelance AI.

121

Claudia Ng @ds-claudia.bsky.social · 08/08/2025

Every project should either: - Build skills - Build assets - Build your brand If it’s doing none, stop.

010

Claudia Ng @ds-claudia.bsky.social · 08/08/2025

As a solo data scientist, I’ve found 3 types of leverage: - Coaching gave me human leverage - Consulting gave me applied leverage - Content and AI tools? That’s scalable leverage Read more here: open.substack.com/pub/aiweeken...

open.substack.com

3 Solopreneur Paths for Data Scientists

What I'm building after corporate DS and the paths I've tried

000

Claudia Ng @ds-claudia.bsky.social · 05/08/2025

I didn’t build my first RAG tool because I thought it would go viral. I built it because people kept DM’ing me asking how to break into data science or build with AI, all questions I’d already answered in my posts. Try it: assistant.ds-claudia.com

000

Claudia Ng @ds-claudia.bsky.social · 24/07/2025

I was tired of AI tutorials that felt like science fair projects. So I built a real RAG project: it turns your Substack posts into a searchable AI assistant. This post walks through every step: from scraping to chunking to shipping. shorturl.at/GicNL

shorturl.at

RAG Tutorial with Code: Ship Your Own AI Assistant This Weekend

The exact blueprint for building a RAG chatbot that will save you dozens of hours

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

Building an AI product in 5 steps: 1. Have an idea 2. Prompt like a maniac 3. Watch it almost work 4. Panic, then debug 5. Ship it anyway Does this sound familiar, or is your chaos different?

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

Most of AI building isn’t about being smart. It’s about being stubborn enough to fix what breaks… And curious enough to try again.

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

Some projects take a weekend. Some take months. Both are valid. Both move you forward.

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

The real flex isn’t how smart your AI project is. It’s how clearly you can explain it to a non-technical friend.

010

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

Don’t aim for perfect. Aim for finished. Build momentum!

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

I don’t build AI projects to impress anyone. I build them to prove to myself I can. Why do you do what you do?

000

Claudia Ng @ds-claudia.bsky.social · 23/07/2025

Most people are waiting for the confidence to begin. But confidence is what you earn after you start.

000

Claudia Ng @ds-claudia.bsky.social · 22/07/2025

Your weekend build might not be world-changing. But it might change your world: Your confidence, Your direction, Your job.

000

Claudia Ng @ds-claudia.bsky.social · 22/07/2025

I write AI technical tutorials not because I know everything, but because writing is how I figure things out.

000

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Genuine question: Do you consider vibe coding with AI "cheating"? I see it like using: - Calculators instead of long division, or - GPS instead of memorizing maps, or - Driving a car instead of walking. Same destination, better tools. What's your perspective?

110

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Cantonese diaspora: tired of sounding like a 5-year-old when talking to your grandmother? I'm building an AI conversation partner where you can practice without judgment. Looking for beta testers (30-min sessions) to shape this product! DM me.

000

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Most people learn AI tools then hunt for problems to use them on. I learned to spot problems first, then pick the simplest tool that works. My problem-first strategy: aiweekender.substack.com/p/the-strate...

aiweekender.substack.com

From Data Scientist to AI Builder: What Actually Works

How I learned to stop chasing tools and start solving problems

010

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Differences between production AI systems vs. demos: Demo: Works perfectly in controlled environment Production: Handles edge cases, rate limits, and vendor outages The gap is where experience matters.

000

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Feature engineering: Crafting mathematical transformations (log transformations, normalization, interaction terms) Prompt engineering: Crafting natural language instructions (chain-of-thought prompting, few-shot prompting etc.) Same analytical thinking, different medium. shorturl.at/ZYmJM

aiweekender.substack.com

3 LLM Prompting Techniques for Smarter Responses

Learn how to structure AI prompts for more insightful answers - no coding required

000

Claudia Ng @ds-claudia.bsky.social · 21/07/2025

Old Me as Data Scientist: "We need more training data" New me as AI Engineer: "We need better examples in the prompt"

000

Claudia Ng @ds-claudia.bsky.social · 18/07/2025

Found Google's Gemini CLI tool that writes documentation for you. Here's how: 1. Install it: npm install -g @google/gemini-cli 2. Go to your project folder: cd [path] 3. Invoke agent by running: gemini 4. Ask: "Create a comprehensive README with installation and usage examples"

000

Claudia Ng @ds-claudia.bsky.social · 18/07/2025

ChatGPT Agent is live. It can: • Control a virtual desktop • Book travel autonomously • Build presentations We went from chatbot to digital employee in 2 years. What's the first task you'd delegate to an AI agent?

000

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

My career progression in a nutshell: Harvard taught me to analyze problems. FinTech taught me to solve them with code. Substack taught me to share the messy process.

010

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

Everyone wants to know "the secret" to breaking into data science. The secret: - Build stuff. -Post it. - Repeat. It’s just about persistence.

000

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

3 years ago, none of the AI tools you use daily existed. ChatGPT, Claude, Cursor, GitHub Copilot, LangChain - all launched in the past 36 months. The entire landscape changed faster than a college degree takes to complete.

000

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

The AI tools everyone uses today didn't exist 2 years ago. Experience matters less than you think.

000

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

Every AI application builder was a beginner 18 months ago. That's how fast this space moves.

000

Claudia Ng @ds-claudia.bsky.social · 16/07/2025

The truth about breaking into data science: It’s 10% technical skills, 90% showing you can think through messy business problems.

000

Claudia Ng @ds-claudia.bsky.social · 10/07/2025

Building AI is easy. Building AI that people actually want to use is hard.

000

Claudia Ng @ds-claudia.bsky.social · 10/07/2025

Every AI demo works perfectly. AI implementations... not so much. What's been the biggest gap you've seen?

000

Claudia Ng @ds-claudia.bsky.social · 10/07/2025

AI courses teach you knowledge. Real projects teach you judgment.

000

Claudia Ng @ds-claudia.bsky.social · 08/07/2025

Pattern recognition brain + urban architecture = weekend sketches

000

Claudia Ng @ds-claudia.bsky.social · 08/07/2025

Building in public is vulnerable in a way that corporate jobs aren't. When you mess up at work, your team sees it. When you mess up online, the internet sees it. But the internet also gives you further reach.

000

Claudia Ng @ds-claudia.bsky.social · 08/07/2025

Building in public taught me the difference between perfectionism and shipping. Perfectionism keeps your work private forever. Shipping lets you learn from real users.

000

Claudia Ng @ds-claudia.bsky.social · 06/07/2025

I'm #84 in technology on Substack! I started the AI Weekender (aiweekender.substack.com) to document my DS-to-AI transition six months ago with zero audience. I thought maybe 50 would care. This is the power of showing up consistently and sharing your learnings in public!

aiweekender.substack.com

AI Weekender | Claudia Ng | Substack

I write about building with AI and Data Science-focused career advice from my six years in Silicon Valley startups. Click to read AI Weekender, by Claudia Ng, a Substack publication with thousands of ...

000

Claudia Ng @ds-claudia.bsky.social · 30/06/2025

Every company claims they're "AI-first" now. Most are still figuring out what that means. What’s ONE effective AI use case you’ve seen actually work?

000

Claudia Ng @ds-claudia.bsky.social · 30/06/2025

The AI job market isn't "learn Python and get hired." It's "solve problems people care about and get hired." Technical skills are table stakes. Business impact is the differentiator.

000

Claudia Ng @ds-claudia.bsky.social · 30/06/2025

ML taught me to think in features and targets. AI taught me to think in examples and instructions.

000

Claudia Ng @ds-claudia.bsky.social · 30/06/2025

Sometimes the answer is just a really good prompt and an API call. What’s a business problem you’ve recently solved with LLMs?

010

Claudia Ng @ds-claudia.bsky.social · 30/06/2025

That moment when you realize your 6 years of sklearn experience doesn’t prepare you for prompt engineering… aiweekender.substack.com/p/the-ml-ski...

aiweekender.substack.com

The ML skills that don’t transfer to AI (and What Does)

How the Shift from Traditional ML to AI Completely Changed My Approach to Building Intelligent Systems

000