Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The Road to Node
Search
Guille Paz
October 28, 2017
Programming
0
250
The Road to Node
The Road to Node (at a big company).
Guille Paz
October 28, 2017
Tweet
Share
More Decks by Guille Paz
See All by Guille Paz
No me robes el Scroll!
pazguille
0
260
User First
pazguille
1
210
#OfflineFirst
pazguille
3
5.9k
ES6 in Production
pazguille
10
3.2k
No me hagas esperar!
pazguille
1
180
CSS Sprites vs. Data URIs
pazguille
0
440
Hello, Style Guides!
pazguille
0
270
Decoupling your JavaScript
pazguille
0
180
Progressive Enhancement - Is it still important?
pazguille
0
130
Other Decks in Programming
See All in Programming
AI Schema Enrichment for your Oracle AI Database
thatjeffsmith
0
280
20260127_試行錯誤の結晶を1冊に。著者が解説 先輩データサイエンティストからの指南書 / author's_commentary_ds_instructions_guide
nash_efp
1
960
AIエージェント、”どう作るか”で差は出るか? / AI Agents: Does the "How" Make a Difference?
rkaga
4
2k
生成AIを使ったコードレビューで定性的に品質カバー
chiilog
1
270
それ、本当に安全? ファイルアップロードで見落としがちなセキュリティリスクと対策
penpeen
7
3.9k
KIKI_MBSD Cybersecurity Challenges 2025
ikema
0
1.3k
AIによるイベントストーミング図からのコード生成 / AI-powered code generation from Event Storming diagrams
nrslib
2
1.9k
Vibe Coding - AI 驅動的軟體開發
mickyp100
0
170
【卒業研究】会話ログ分析によるユーザーごとの関心に応じた話題提案手法
momok47
0
200
AtCoder Conference 2025
shindannin
0
1.1k
MUSUBIXとは
nahisaho
0
130
[KNOTS 2026登壇資料]AIで拡張‧交差する プロダクト開発のプロセス および携わるメンバーの役割
hisatake
0
280
Featured
See All Featured
Groundhog Day: Seeking Process in Gaming for Health
codingconduct
0
92
Game over? The fight for quality and originality in the time of robots
wayneb77
1
120
A brief & incomplete history of UX Design for the World Wide Web: 1989–2019
jct
1
300
How to optimise 3,500 product descriptions for ecommerce in one day using ChatGPT
katarinadahlin
PRO
0
3.4k
Building Better People: How to give real-time feedback that sticks.
wjessup
370
20k
Highjacked: Video Game Concept Design
rkendrick25
PRO
1
290
Agile Actions for Facilitating Distributed Teams - ADO2019
mkilby
0
110
The innovator’s Mindset - Leading Through an Era of Exponential Change - McGill University 2025
jdejongh
PRO
1
90
Conquering PDFs: document understanding beyond plain text
inesmontani
PRO
4
2.3k
SEO Brein meetup: CTRL+C is not how to scale international SEO
lindahogenes
0
2.3k
GraphQLの誤解/rethinking-graphql
sonatard
74
11k
State of Search Keynote: SEO is Dead Long Live SEO
ryanjones
0
120
Transcript
The Road to Node at a big company
- I’m Guille Paz - Frontend developer - Tech Lead
at Mercado Libre @pazguille (twitter / github) Hi!
Mercado Libre
Largest e-commerce ecosystem in Latin America
None
~ 1500 developers
~ 1500 developers ~ 4600 repositories
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps ~ 3 Million rpm
~ 1500 developers ~ 4600 repositories ~ 300 deploys per
day ~ 800 frontend apps ~ 3 Million rpm ~ 900 coffees per day
Back to 2016
Frontend Frontend developers Backend developers
Frontend
Frontend Access Data UI Logic Business Logic Build assets Auth
i18n e2e testing ...
TOO many Technologies
TOO many Responsibilities
It’s a kilombo!
“The world is changing and we must change with it.”
- Ragnar Lothbrok
Hey Guille, coffee? Hey, what's happened? Nothing, just running grails
run-app... Sure! I have 10-15 mins.
New Team Frontend Core
We made Big decisions!
Node is the new UI Layer
Frontend Middleend UI Layer Business Logic
Frontend API API Middleend
Frontend API API Middleend Mobile Native
None
The new frontend stack
None
LTS version
None
None
None
ES6 Modules vs CommonJS
None
None
Use ES Features and don’t transpile the server.
node.green
None
six-speed
None
Use ES Stable Features and don’t transpile the server.
None
Shared Version
Default Middlewares
Authentication Device Detection Security Default Middlewares
Default Routes (“/ping”)
An Express Instance on Steroids
Routers (“mini-applications”)
Start Server (development vs production)
None
Using React Is A Business Decision, Not A Technology Choice.
- Eric Baer
Server-Side Rendering
React on the Server
Only transpile JSX in runtime
JSX (template engine)
res.render(‘View.js, props);
None
Render React Middleware
Override res.render( ).
res.render(<View />, props);
Universal UI Components
Universal Views
React on the Server & Client
None
Hey Guille, coffee? Hey, what's happened? Nothing, just running npm
install... Sure! I have 2-3 mins.
None
None
nordic & nordic-dev packages
None
None
react-router on the server
None
None
[email protected]
async hooks (onEnter ) are defined globally
None
None
process.env
It’s not a normal JavaScript object...
Server rendering is slower...
cache all the values!
React 16
Takeaway
⇢ Knows your dependencies ⇢ Node is the new UI
Layer ⇢ New roles and responsibilities ⇢ ~ 126 coffees per day (86% real) ⇢ Today we feel like...
None
None
Thank you! @pazguille