Software Engineer Roadmap
Networking
How systems talk to each other.
1 week · wk 18Applied pace6 topics18 Interview Questions
Why this pace:REST calls from React and Express routes in Node already exercise HTTP daily — fill in TCP/DNS internals and WebSockets you may have glossed over.
SEC FOCUS
TLS everywhere, real certificate validation, and secure headers (CSP, HSTS) by default.
Topics & Action Items (6)
01
TCP/IP and UDP fundamentals
2 hrs02
HTTP/HTTPS and status codes
1-2 hrs03
DNS resolution
1 hr04
REST, GraphQL, gRPC
2-3 hrs05
Load balancing basics
1 hr06
WebSockets and real-time protocols
1-2 hrs