The Stat Guy

08/07/2025

Want to break into quant or HFT in 2025?
Forget luck. Forget shortcuts. In every screening round, DSA is your make-or-break skill.

It’s the language every top firm speaks — and if you’re not fluent, you’re out.

To save you from wasting hours googling random resources, here’s a no-fluff, battle-tested DSA prep list that works 👇

⸻

📺 YouTube Channels
1. Striver A2Z DSA Playlist
Structured roadmap from basics to advanced.
Pseudocode + intuition = 🔥
https://lnkd.in/gJXB9cnY
2. NeetCode
Clean solutions + recurring LeetCode patterns.
Perfect for interview readiness.
https://lnkd.in/gwhyZfFi
3. William Lin (tmwilliamlin168)
Codeforces Grandmaster sharing live contests & elite problem-solving strategies.
Best for: Speed + strategy.
https://lnkd.in/gHiGtKRX
4. Errichto
Deep dives into algorithms and data structures.
Best for: ICPC-style problems.
https://lnkd.in/gE4tpbhJ
5. Vivek Gupta’s DP Workshop
Advanced DP transitions and optimisation tricks.
Brute force → Clean solution evolution.
https://lnkd.in/g62GukQS

⸻

📚 Algorithm Reading
1. CP-Algorithms
Suffix arrays, segment trees, heavy-light decomposition — all clearly explained.
https://cp-algorithms.com
2. Competitive Programmer’s Handbook – Antti Laaksonen
Free, beginner-friendly book that simplifies hard concepts.
3. HackerRank Quant Challenges
Math, probability, stats — highly relevant for quant interviews.
4. Glassdoor & Levels.fyi
Find real quant/HFT problems by company.
Pro tip: Search “Quant Researcher” or “Quant Trader.”

⸻

🏆 Practice Platforms
1. LeetCode
Patterns, contests, and company-specific filtering.
https://leetcode.com
2. AtCoder
Precise problems to sharpen logic.
https://atcoder.jp
3. CSES Problem Set
Graphs, trees, binary search — clean, elegant set.
https://cses.fi/problemset
4. Codeforces
Contests that push your math, logic, and speed under pressure.
https://codeforces.com

⸻

What actually works?
There’s no magic formula. Just:
• The right resources
• Ruthless consistency
• Strong fundamentals
• Learn → Apply → Reflect → Repeat

💾 Save this post
📩 Share with someone preparing for quant roles
🧵 Comment if you want a detailed DSA + Math roadmap just for quants!

++

07/09/2025

Ace data science interviews >>
Todays topic: Random forest

This video contains popular interview questions that are related to algorithm, Questions: 1. How does Random Forest handle mis...

07/08/2025

Netflix is hiring!

(Apply before the roles close)

1. Machine Learning Analyst, Netflix
Link: https://lnkd.in/dR4Dnqg9

2. Product Analyst, SpotOn
Link: https://lnkd.in/dtvynE8H

3. Data Analyst, PandaDoc
Link: https://lnkd.in/dxWyf5-Y

4. Data Scientist, Spotify
Link: https://lnkd.in/dbQWBz6W

5. Data Scientist, Dataiku
Link: https://lnkd.in/dtYm-p86

6. Product Analyst, Optiwatt
Link: https://lnkd.in/dsM2jZrG

7. Data Scientist, Uber
Link: https://lnkd.in/dhCH37QG

8. Data Analyst, AmTrust
Link: https://lnkd.in/dYx3ZM2v

9. Data Science Manager, American Express
Link: https://lnkd.in/dBDyNqy4

10. Product Manager, Scale AI
Link: https://lnkd.in/d8wdHiyq

♻️ Save it for later or share it with someone who might find it helpful!

07/08/2025

This is the reality these days 😊

07/05/2025

This ML question will fail by more than 80% during amazon interviews

This is one of the most frequent interview question related to data science and machine learning ...

07/03/2025

In 2020:
Everyone: “Become a Data Scientist — it’s the sexiest job of the 21st century.”

In 2025:
AI Engineers: building apps with 3 lines of LangChain
Data Scientists: still cleaning CSVs and arguing about p-values

What changed?

🔹 AI isn’t just about models anymore.
It’s about shipping solutions, fast.

🔹 The spotlight has shifted:
From analysis → to agent workflows
From accuracy → to usability
From insights → to impact

Let’s face it:

• Data Scientists laid the foundation
• AI Engineers are building the house

The new heroes of AI?
→ People who can prototype, deploy, and iterate fast
→ Who don’t just tune models — they build products with them

Data is still gold — but
Ex*****on is the real currency in GenAI.

If you’re still only focused on modeling,
2025 will leave you behind.

06/29/2025

🐻 vs ⚡ Your data processing just got a major upgrade!

Remember waiting 10 minutes for your pandas script to finish? Those days are over. Polars is the lightning-fast data manipulation library that's making data scientists everywhere question why they stuck with the old ways for so long.
Here's why you should make the switch:
⚡ Blazing Speed - We're talking 5-30x faster than pandas for most operations
🧠 Smart Memory Usage - No more crashes from running out of RAM on large datasets
🔧 Better API Design - Cleaner, more intuitive syntax that actually makes sense
🚀 Built for Modern Hardware - Takes full advantage of your multi-core processor
The best part? The learning curve is gentle if you're coming from pandas. Your muscle memory won't hate you.
Stop watching progress bars. Start getting results.

06/29/2025

Microsoft is hiring!

(Apply before the roles close)

1. Business Analyst, Microsoft
𝐋𝐢𝐧𝐤: https://lnkd.in/d9SV3FB5

2. Product Manager, Microsoft
𝐋𝐢𝐧𝐤: https://lnkd.in/d6D3XjkZ

3. Data Scientist, Upgrade
𝐋𝐢𝐧𝐤: https://lnkd.in/dy8rqMKk

4. Data Analyst, Orion
𝐋𝐢𝐧𝐤: https://lnkd.in/dEnH4x6J

5. Data Scientist, TradeStation
𝐋𝐢𝐧𝐤: https://lnkd.in/d-3XbXvD

6. Data Analyst, Stripe
𝐋𝐢𝐧𝐤: https://lnkd.in/df3jXm3V

7. Analytics Analyst, AmTrust
𝐋𝐢𝐧𝐤: https://lnkd.in/df_5JywC

8. Data Scientist, CVS
𝐋𝐢𝐧𝐤: https://lnkd.in/due3jNgn

9. Advanced Analyst, Meijer
𝐋𝐢𝐧𝐤: https://lnkd.in/de7x5HQc

10. Reporting Analyst, Uplight
𝐋𝐢𝐧𝐤: https://lnkd.in/dbwCqV97

♻️ Repost this to help the Job Seekers.

06/28/2025

Stop paying $200 for Claude Code!

Google dropped 𝗚𝗲𝗺𝗶𝗻𝗶 𝗖𝗟𝗜, an AI workflow tool right in your command line.

What it does for you:

✅ 𝗤𝘂𝗲𝗿𝘆 & 𝗲𝗱𝗶𝘁 𝗺𝗮𝘀𝘀𝗶𝘃𝗲 𝗰𝗼𝗱𝗲𝗯𝗮𝘀𝗲𝘀 with 1M token context window
✅ 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗲 𝗮𝗽𝗽𝘀 𝗳𝗿𝗼𝗺 𝗣𝗗𝗙𝘀 𝗼𝗿 𝘀𝗸𝗲𝘁𝗰𝗵𝗲𝘀 using multimodal capabilities
✅ 𝗕𝘂𝗶𝗹𝘁-𝗶𝗻 𝗚𝗼𝗼𝗴𝗹𝗲 𝗦𝗲𝗮𝗿𝗰𝗵 to ground your prompts with real-time data
✅ 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲 𝗰𝗼𝗺𝗽𝗹𝗲𝘅 𝘁𝗮𝘀𝗸𝘀 like handling rebases and querying pull requests
✅ 𝗙𝘂𝗹𝗹𝘆 𝗲𝘅𝘁𝗲𝗻𝘀𝗶𝗯𝗹𝗲 with Model Context Protocol (MCP) support
✅ 𝗖𝗼𝗻𝗻𝗲𝗰𝘁 𝘁𝗼 𝗺𝗲𝗱𝗶𝗮 𝗴𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻 tools like Imagen, Veo, and Lyria

And: It's 𝗳𝗿𝗲𝗲 for now, with 60 requests per minute and 1,000 requests per day

Plus it's completely 𝗼𝗽𝗲𝗻 𝘀𝗼𝘂𝗿𝗰𝗲 (Apache 2.0).

The best part? It uses 𝗚𝗲𝗺𝗶𝗻𝗶 𝟮.𝟱 𝗣𝗿𝗼 - Google's most sophisticated coding model.

If you don't have the money for Claude Code, this is an interesting alternative.

👉 Have you tried terminal-based AI coding yet?