Post on 16-May-2015
The Startup Hangover:Supporting 15 mil users
Phil Calçado - SoundCloud@pcalcado
http://philcalcado.comWednesday, May 23, 12
ohai!
i’m phil.
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i work here:
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law we make up
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law we make up
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law of nature
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law of nature
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how to survive?
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~2008
App
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App
~2011
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law of nature
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no point infighting nature
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Service A Service B
Service C
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teams are built around goals, not systems
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making layers explicit
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a set is a collectionof your sounds
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add other users’ sounds to a set
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application layervs.
domain layer
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law we make up
teams are end-to-end
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great for“lateral hires” to a team
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law we make up
you built it?you support it
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automate yourself out of support
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law we make up
async by default
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law we make up
pull requests or pairingas
code review
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short-lived branch
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branch goes green
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discussion
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law we make up
use the best tool for the job, but practice empathy
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no-brainer choices:ruby, go, scala, java, R
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our fav outliers:node.js, clojure, haskell, python
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law we make up
everyone is an architect
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bad calls are ok, gather feedback fast and make sure we can revert it
when needed
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law we make up
end-to-end testing before checking in code
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impersonators/stubs/mocks
for everything we can
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and we often can
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law we make up
product manageris a benevolent dictator
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and they often can code
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law we make up
20% time is sacred
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just don’t have the whole team going away at once
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law we make up
no multi-tasking
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everyone is a singletonWednesday, May 23, 12
law we make up
“done” means someone is using it(a.k.a. continuousdeployment)
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cycle time: ~3 days
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law we make up
measure all the things
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Qs?
Phil Calçado - SoundCloud@pcalcado
http://philcalcado.comWednesday, May 23, 12
http://bit.ly/work-at-soundcloud
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