DVLED Project Engineer I

A foundations course that builds eleven core data structures from the ground up (arrays, matrices, stacks, queues, linked lists, trees and BSTs, hash tables, hash sets, heaps, graphs and tries), then covers sorting, searching, greedy and divide and conquer. Every chapter has practice problems, flashcards and an assessment. It suits students and career switchers whose foundations came from tutorials and who find pattern courses move too fast.

• Job search
• DSA
• CS fundamentals

A browsable practice library of coding problems that can be filtered by pattern, data structure, difficulty and company, so you can drill exactly the weakness you found this week. Patterns include two pointers, sliding window, hash maps, stacks, backtracking and greedy algorithms, with company filters for Google, Meta, Microsoft, Amazon, Oracle and LinkedIn. Free to browse, with an in-browser editor and solutions.

• Job search
• DSA

A practical course on negotiating compensation in tech, from preparing and building a strategy to specific tactics, the full package beyond base salary, handling multiple offers and asking for a raise. It has tailored sections for fresh graduates and experienced engineers. It suits anyone with an offer coming, and anyone who has ever accepted the first number out of discomfort.

• Career
• Job search

Abdul Bari's channel is a classic university-style course on the design and analysis of algorithms, taught on a whiteboard in clear English. It covers complexity, divide and conquer, greedy methods, dynamic programming, backtracking, branch and bound, NP-hard problems and string matching, plus Java programming. It suits computer science students studying algorithms as a subject.

• DSA
• CS fundamentals
• Programming

A free newsletter of short, focused posts on system design and problem solving, from the team behind the Grokking courses. Recent posts cover company interview processes (such as OpenAI and Anthropic roles), the most asked mobile system design questions and preparation plans, each linking to a fuller article on the blog. It suits engineers who want a steady, low-effort way to keep system design and interview topics fresh between deeper study sessions.

• System design
• DSA

A free, volunteer-run encyclopedia of algorithms and data structures used in competitive programming, with clear explanations, proofs and C++ implementations for everything from the sieve and binary exponentiation to segment trees, LCA and string algorithms. Started as an English translation of the Russian site e-maxx and has grown well beyond it.

• DSA
• CS fundamentals