Jay Feng

New Mock Interview is live! 🚀

We walk through a real SQL interview question that tests your ability to use GROUP BY and COUNT to solve an “identical logins” problem.

If you’re preparing for a data science or analyst role, this is must-watch practice.

#sql #mockinterview #datascience #interviewprep #interviewquery

3 weeks ago | [YT] | 2

Jay Feng

Remember when “entry-level” actually meant no experience required?

In 2025, that door might be slammed shut. Most “entry-level” tech roles now demand 2–5 years of experience—sometimes even AI skills.

So… is entry-level officially dead? Or has it just been rebranded?

I just dropped a new video breaking down the data behind this trend, why companies stopped hiring true juniors, and where the real entry-level opportunities are hiding in 2025.

What do you think? Are entry-level jobs gone for good?

#entryleveljobs #techjobs #jobsearch

1 month ago | [YT] | 1

Jay Feng

Big Tech is panicking.

Google brought back whiteboards.
OpenAI is testing how well you understand AI.
Amazon is rejecting people for being too good at coding.

I spent 3 months talking to hiring managers and Interview Query users to figure out what's actually happening inside tech interviews in 2025.

And if you're preparing for interviews at companies like Meta, Google, Amazon, or startups that test how well you work with AI, check out Interview Query. We've got real questions, AI-powered mocks, and up-to-date prep based on what companies are asking right now.

🔥 Try Interview Query for your tech interview prep. Use code "datasciencejay" for 10% off: www.interviewquery.com/pricing?utm_source=youtube&…

2 months ago (edited) | [YT] | 7

Jay Feng

Big Tech used to be the dream job.
Free meals. Unlimited PTO. Office slides. Work-life balance.
Now? It’s starting to feel like Wall Street with better Wi-Fi.

In my latest video, I break down how tech culture morphed from “chill and cushy” to “grind and survive”, and why AI, layoffs, and golden handcuffs are all part of the story.

3 months ago | [YT] | 7

Jay Feng

Think a single stats question can’t sink your interview? Think again.

If you're prepping for a data science, analyst, or quant role—this video breaks down the most common types of statistics questions you’ll face (and how to crush them).

I walk through real examples from companies like Google, Netflix, and Wall Street firms.

Let me know in the comments: Which stats question trips you up the most? 👇

3 months ago | [YT] | 6

Jay Feng

I asked an AI engineer at a $10B startup how often he uses PyTorch…

His answer?

“What’s PyTorch?”

That’s when it hit me:
Being an AI engineer in 2025 looks nothing like what we imagined.

❌ No PhD
❌ No model training from scratch
✅ Just knowing how to work with LLMs to build real products

I sat down with Nikhil from Perplexity to break down: – What AI engineers actually do
– How he pivoted from full-stack to AI
– And why this role is suddenly everywhere

🎥 Watch the full interview here: https://youtu.be/o0OczKvQ_is

What do you think—are all devs going to be AI engineers soon?

5 months ago | [YT] | 2

Jay Feng

🚨 Ever wondered how ticket scalpers make millions? 🚨

In my latest video, I tried the world of ticket reselling, revealing what really goes on behind the scenes—from Ticketmaster crashes to secret broker networks. I share my personal journey of trying to break into the industry, the challenges I faced, and the shocking truths I uncovered along the way.

Check it out to learn how the system works, what went wrong with my attempts, and why it's not as easy as it seems! 🎟️💸

👀 Watch now and let me know what you think!

#ticketscalping #ticketmaster #resellingtickets #datascience #scalpersecrets

8 months ago | [YT] | 2

Jay Feng

📊 Why Tech Companies Are Laying Off Despite Record Profits: What it Means for Jobs in 2025

Companies like Meta, Google, and Microsoft have continued to grow in the past years but have laid off thousands of people. Why is this happening?

Our analysis reveals:
• What happened to tech employment
• Why traditional FAANG paths are narrowing
• Where the new opportunities are emerging

Whether you're a seasoned dev or breaking into tech, understand where the real opportunities are in 2025's transformed job market.💡

#techjobs2025 #techcareers #aiindustry #techindustry #careeradvice

9 months ago (edited) | [YT] | 4

Jay Feng

🔍 Thinking about becoming a Data Analyst? Watch this video to uncover the rewards and challenges of the role. From managing tight deadlines to overcoming skill gaps, we cover it all—plus, tips for staying calm and confident in the face of stress! 🚀📊

10 months ago | [YT] | 1

Jay Feng

Inviting all data scientists, analysts, engineers, and anyone interested about the world of data & AI—to our Data Community Meetup in San Francisco!

🗓 Date: November 12, 2024
🕔 Time: 5:30 PM to 7:30 PM
📍 Location: Southern Pacific Brewing

This is a fantastic chance to connect, share insights, and build relationships with others passionate about data and machine learning. Whether you're looking to talk shop, network, or unwind after a busy day, this is the place to be!

You can RSVP here: www.eventbrite.com/e/data-community-meetup-hosted-…

See you there!

11 months ago | [YT] | 5