October 2026 to June 2027
SDE-1 All-In Guide
A practical guide to building software skills and preparing for engineering interviews.
New here?Start hereThe one-page overview: goal, plan, and reading order.
Open the start page →The scheduleThe 34-week planEvery week, dated, with DSA targets, project work and reading.
See the calendar →The proofFour flagship projectsPayments ledger, Kafka-lite, mini PaaS, chaos harness. Full specs.
Browse projects →All sections
Each section is self-contained. The plan tells you when to open it.
Operating rules
The do and do-not list that every page assumes.
DSA in C++
495 problems, 20 modules, phases A to H, revision and mocks.
CS fundamentals
OS, databases, networks, OOP and Go concurrency, out loud.
LLD and machine coding
Eight designs and four timed runs that make this round safe.
System design
HLD building blocks and case studies, mapped to the two playlists.
AI for software engineers
LLM basics, AI-assisted coding, production design, and interview practice.
Applications and referrals
The off-campus playbook and the 5-pings-a-week engine.
Reading program
One blog per day, basics to advanced, plus Go, C++, TS and Python.
Readiness scorecard
Fifteen signals to check every month before you apply.