SlideShare a Scribd company logo
A centralized team in a
decentralized world:
Engineering tools at Netflix
Mike McGarr
@SonOfGarr
increase the # of
delighted customers
while decreasing
support waste
increase rate of
innovation
while decreasing the
impact of change
Customers
our customers are
engineers
microservices
highly aligned, loosely coupled
subcultures
free market
we build products
the Paved Road
the Paved Road
the Paved Road
one paved road
does not fit all
wide spectrum of needs
be your own customer
Support
you build it, you support it
sometimes tools break
optimize
communication
channels for customers
chat
email
more than five minutes
walk-bys
interruptions
maker's schedule
first responder
ad hoc
we have avoided
ticketing systems
make creating a ticket
easy
minimize context switching
Innovation
tool stagnation
4 tools don't evolve
4 customers want new features
4 "it works, why change it"
4 lacks organization alignment
distribute innovation
institutionalize innovation
"...hiring managers should
staff beyond the bandwidth
needed for known tasks.
1
Daniel Jacobson, Netflix
hire beyond your needs
make space for innovation
Change
2014 migrations
4 Perforce to git
4 Java 6 to Java 7
4 Shard Jenkins
4 Evacuate the data center
so we're done...right?
2015 migrations
4 Ant to Gradle
4 CentOS/Precise to Trusty
4 Asgard to Spinnaker
4 Tomcat 6 to 7 (or is it 8, or 9?)
4 Java 7 to Java 8
change is the only constant
change campaigns
targeted communication
beyond email
4 hipchat banners
4 posters
4 blesk notifications
4 http://go/migrations
evolve your message
"Wanted: beta testers"
"production ready"
"a cure for what ails ye"
"deprecation warning: the end is nigh!"
"you are the last to go"
"let's help you finish"
measure change
automate change
make continuous change
easy
understand your customers
develop a customer support model
make space for innovation
make continuous change easy
we're hiring
Senior Gradle Engineer - click to apply
Senior Full Stack Engineer - click to apply
email me - mmcgarr@netflix.com
image attributions: http://bit.ly/1KrwACQ
github repo: https://github.com/jmcgarr/centralized-teams-
talk

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Centralized team in a decentralized world: Engineering tools at Netflix