The Polymathic Engineer

The Polymathic Engineer

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May 2025

Mastering the Two-Pointers Technique
How to use the two-pointer method to efficiently solving array and string problems (with code templates).
 • 
Franco Fernando
Chaos Engineering
How intentional failures can make distributed systems more resilient.
 • 
Franco Fernando
Understanding TLS: how data stays secure over the internet
How the TLS protocol works under the hood and why it's important.
 • 
Franco Fernando
3
The RAFT Consensus Algorithm
How RAFT solves the consensus problem in distributed systems: a step-by-step breakdown that every engineer can understand.
 • 
Franco Fernando
Hashing in Coding Interviews
How to effectively use sets and hash tables to solve coding interview problems.
 • 
Franco Fernando
1

April 2025

Database categories
A taxonomy of the most used types of database available on the market: relational, NoSQL, time-series and NewSQL.
 • 
Franco Fernando
Communication
How to boost your career as a software engineer communicating better with your peers, manager, and partners.
 • 
Franco Fernando
Backtracking
How to master backtracking algorithms: a step by step guide to solve any problem.
 • 
Franco Fernando
How (not to) fail a system design interview
Common mistakes software engineers make during system design interviews and how to avoid them.
 • 
Franco Fernando
2
© 2025 Franco Fernando
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