CoreTrail
CoreTrail

Resources

Things I come back to for another explanation, more practice, or a different way of looking at something.

Practice platforms

Places I use when I need actual problems rather than another explanation.

StrataScratch SQL and data interview problems with realistic datasets. Practice LeetCode DSA and SQL problem practice. I usually use the topic lists rather than solving randomly. Practice DataLemur SQL and data interview questions, useful for shorter focused practice. Practice

System design

HLD problems, architecture walkthroughs, and system design interview prep.

Hello Interview System design fundamentals, interview frameworks, and worked architecture walkthroughs. YouTube SystemCraft High-level design problems and worked system design scenarios. HLD Aced (formerly Exponent) System design interview prep, mock interviews, architecture patterns, and broader technical interview guidance. YouTube Arjay McCandless System design, backend architecture, and practical engineering breakdowns. YouTube

Data

Data engineering, data systems, modeling, and interview prep.

Afaque Ahmad Data engineering, Spark, data modeling, and DE system design interviews. YouTube Kahan Data Solutions Modern data engineering, warehouses, dbt, modeling, and practical architecture. YouTube Ansh Lamba Data engineering projects and deep dives across Spark, Databricks, dbt, Airflow, and cloud. YouTube

AI / ML

Machine learning, deep learning, GenAI, and current AI research.

DeepLearning.AI Machine learning, deep learning, GenAI, agents, and practical AI engineering lessons. YouTube Google DeepMind Research talks, demos, and explanations from current AI and machine learning research. YouTube

Software / Systems / CS

Software design, programming, databases, computer science, and systems fundamentals.

ArjanCodes Python, software design, architecture, testing, design patterns, and maintainable code. YouTube Ben Dicken Computer science, databases, systems, performance, and software engineering from first principles. YouTube IBM Technology Technical explainers across software systems, databases, distributed computing, cloud, security, and AI. YouTube

Cloud / DevOps

Cloud platforms, containers, infrastructure, and operations.

Google Cloud Tech Official Google Cloud tutorials, walkthroughs, architecture, and product deep dives. YouTube KodeKloud Hands-on DevOps, Kubernetes, containers, cloud, and infrastructure fundamentals. YouTube TechWorld with Nana DevOps and cloud concepts explained through practical examples. YouTube

University / Courses

University lectures, open courses, and research channels I return to for deeper study.

Stanford Online Stanford lectures, seminars, engineering courses, AI, computer science, and professional education. YouTube MIT OpenCourseWare Full MIT courses across computer science, mathematics, engineering, and related subjects. YouTube UC Berkeley EECS Electrical engineering and computer science lectures, seminars, research, and department talks. YouTube Carnegie Mellon University (CMU) University lectures, research, talks, and computing work from Carnegie Mellon. YouTube MIT CSAIL Computer science and AI research, systems, robotics, vision, theory, and research talks from MIT CSAIL. YouTube Michigan EECS 498/598 University of Michigan deep learning for computer vision lectures from EECS 498/598. Course playlist NYU Tandon Engineering, computer science, AI, research talks, and technical material from NYU Tandon. YouTube

Math / Science

Mathematics, physics, science, and visual explanations that rebuild intuition.

3Blue1Brown Visual intuition for linear algebra, calculus, differential equations, neural networks, and mathematics. YouTube Welch Labs Math, science, and machine learning explained visually with strong technical storytelling. YouTube Veritasium Science and engineering explained through experiments, demonstrations, interviews, and deep conceptual stories. YouTube

Networking / Security

Networking, Linux, security, and infrastructure fundamentals.

David Bombal Networking, Linux, cybersecurity, infrastructure, and hands-on technical labs. YouTube

Hardware / Deep Tech

Semiconductors, chips, compute hardware, and the physical systems behind modern AI.

Anastasi in Tech Semiconductors, chip architecture, AI hardware, and the technologies underneath modern computing. YouTube

Tech / Product

AI products, startups, technology shifts, and broader product and industry thinking.

Varun Mayya AI products, startups, technology shifts, software businesses, and broader product and industry discussions. YouTube

Not a complete curriculum. Just resources I have found useful enough to come back to.

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