Learn about the tech industry, data science interviewing tips, and how to land your dream job


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&…

1 month 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.

1 month 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? 👇

2 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
âś… 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?

4 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! 🎟️💸

đź‘€ Watch now and let me know what you think!

#ticketscalping #ticketmaster #resellingtickets #datascience #scalpersecrets

6 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.đź’ˇ

#techjobs2025 #techcareers #aiindustry #techindustry #careeradvice

7 months ago (edited) | [YT] | 5

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! 🚀📊

9 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!

đź—“ Date: November 12, 2024
đź•” 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!

9 months ago | [YT] | 5

Jay Feng

🔍 Preparing for software engineering interviews? In this episode, we tackle a challenging "Targeted Sum" problem: finding three integers in a list that add up to the closest sum to a given target.

Join us as we break down the solution step-by-step, sharing tips and techniques that are invaluable for software engineers and data-focused roles alike. If you're looking to sharpen your problem-solving skills and master algorithm-based interview questions, this video is for you! đź’ˇ

Get ready to tackle your next interview with confidence! 🎯

10 months ago | [YT] | 1

Jay Feng

Hey San Francisco Bay Area fans!

Last year, I made the move back to San Francisco, and I’d love to meet you in person if you’re in the area.

Join me for a meetup with Interview Query members and fellow Youtube subscribers:

- Experienced data scientists from big tech
- Emerging AI engineers
- Students getting started in data science
- Aspiring data professionals looking around for new opps.

Fill out this form (docs.google.com/forms/d/e/1FAIpQLSdnGbi01xqC3gKQUE…)

so I can gauge interest and determine how much space we’ll need for the event. Hope to see you there!

10 months ago | [YT] | 4