Swizec's articles in the "lessons" category
I aim to write mindblowing emails with real insight into the career and skills of a modern software engineer. "Raw and honest from the heart!" as one reader described them.
Below are 39 articles filed under lessons
. Enjoy β€οΈ
Software Engineering Lessons from Production
Join Swizec's Newsletter and get insightful emails π on mindsets, tactics, and technical skills for your career. Real lessons from building production software. No bullshit.
"Man, love your simple writing! Yours is the only newsletter I open and only blog that I give a fuck to read & scroll till the end. And wow always take away lessons with me. Inspiring! And very relatable. π"
What being an expert looks like
The blue sweater scene in 'Devil Wears Prada' is a masterclass in expertise
Hard work doesnβt scale
Overtraining won't always get you to the finish line faster. Growth comes in cycles - rest, push hard, recover. Less can be more when it comes to achieving your goals
Move the rock
it's about noticing the rocks that could trip others and taking the initiative to move them
Why write
Regular writing is a secret superpower! Sharpens your thoughts, boosts your career, and helps you become an authority in your field. Don't pretend to be an expert, just share your experiences. Your insights are gold
Avoid spooky action at a distance
Shared state in programming isn't the enemy, it's unclear dependencies that tangle your code. Keep it clean with explicit state dependencies and strict access guidelines
When to throw away your code
Delete code when it stops providing value π‘ All code is a liability; context matters. Keep what solves problems, toss the rest.
A backend service nobody can grok
a little case study from an upcoming book I'm writing with Manning about software rewrites
Own the outcome, not the work
Efficient problem-solving in engineering with a shift in perspective β focusing on user outcomes can lead to innovative solutions and change your approach to system design.
DRY vs SoC, a difficult choice
What is the essential difference between DRY and SoC principles in software engineering and how do you balance the two
Coding is the easy part
Behind the scenes of a vendor migration project. What senior+ engineers do so you can focus on the code.
Clever technical hackery can't solve the wrong design
A simple change in perspective can help you overcome complex technical challenges and save time on future projects.
My biggest React App performance boost was a backend change
Performance lives in the unlikliest of places. Follow the metrics.
Why PATCH endpoints matter
A painful lesson from production that brought several engineers almost to tears: *Please* add PATCH endpoints to your public APIs.
How better data modeling fixes your code
When your code feels hard, 9 times out of 10, the problem is with your data model. The signs are subtle.
useCallback is a code smell
One of my favorite ways to simplify and de-gotcha React code is to rip out all the useCallback and useMemo drama. 90% of the time you don't need it.
If it works together, it lives together
Wherein I use LEGO to talk about organizing your code for ease of use
Why others' code is hard to navigate
Some people like to organize code in files and folders and neat categories. Others love search. When they work together, that's the challenge.
Your code doesn't matter
"Your code doesn't matter" is something experienced programmers say, between the lines, when they sound like complete lunatics. But what do they mean? Why does everyone say it?
Move your business logic into data
The quickest way to simplify a complex function with lots of logic is to turn it into data. A lesson from production
A work ritual that keeps me sane
A coworker asked me for tips on how to stay focused during the day. Here's what I said.
Write abstractions, not just code
Wherein I use a silly example to show why you need more than small reusable single purpose functions to write good software.
Coding forces you to understand the problem
Programming translates fuzzy understanding into exacting specifications. Thatβs why itβs hard. The Illusion of Explanatory Depth reigns supreme
A lesson on expertise from a great mafia movie
You cannot make something good until you understand who you're making it for.
Writing software is like kicking a can
Writing software is a playful process of exploration and discovery. Like a game of kick the can on a Sunday walk.
The Italian foods theory of bad software design π
Spaghetti code β unstructured Ravioli code β too structured Lasagna code β layered wrong Minestrone software β unclear domains
Learnings about the future of the web from Reactathon
The first in-person conference in years! It was wonderful π€© - Remix is great - Serverless at edge is the future - GDPR does not play with π
The role of a senior+ engineer
"Every product org should have a senior+ engineer whose job it is to run around and make everyone else more productive" π€ That IS the role of a senior+ engineer
A quick lesson in writing resilient code
On the backend anything can and will fail. How do you deal with that?
Immutability isn't free
Or how we took an API endpoint from 16s to 3s.
How I used indie hacking to sponsor my own greencard
The longest project of my life
What to do when bugs are whack-a-mole
What do you do when every bug you fix creates 5 new bugs? You could laugh and move on, or realize it's a sign of bigger issues
The Passion Paradox
burnout doesn't work the way you think
When itβs okay to work overtime
Not all overtime is bad overtime
Why null checks are bad
Every null or undefined check doubles the number of tests you need π±
Small choices can wreck your codebase
wanna see the strangest looping construct I've found in production code?
How defensive coding leads to bloat
Defensive coding is an important lesson and over time and engineers it leads to massive bloat, if you're not careful.
Stop SHOUTING = 'shouting'
A hill I will die on π global CONSTANT = 'constant' are bad
Different medium, different mindset
Ever wondered what it's like to make a physical book? It ain't as easy as shipping code lemme tell ya π
Lessons from migrating a 14 year old blog with 1500 posts to Gatsby
After 4 years of putting it off, 1 year of tinkering, a month of work, and $1500 of hired help, my new blog is finally here π Here's what I learned.
Software Engineering Lessons from Production
Join Swizec's Newsletter and get insightful emails π on mindsets, tactics, and technical skills for your career. Real lessons from building production software. No bullshit.
"Man, love your simple writing! Yours is the only newsletter I open and only blog that I give a fuck to read & scroll till the end. And wow always take away lessons with me. Inspiring! And very relatable. π"