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1.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
8 Rollouts a day
Kristian Köhntopp
2.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Most interesting!
3.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
This is what we do
4.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
This is what we do
5.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
This is what we do
• Most hotels worldwide are not in a chain.
• Many hotels communicate by fax.
• Guests need help.
• Self-Service okay, Personal if needed.
• 110+ countries, 40+ languages.
6.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Problem statement
7.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Most likely your problem is different
Problem statement
8.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
• Rapid growth - constantly:
• Last years maximum
reached early in the new year
• Year after year
Problem statement
9.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
• The growth pattern is predictible and
stable.
• Due to growth, good practice is constantly
obsolete.
• New bottlenecks appear all the time,
the larger part of the year we operate in
'blue water'.
Problem statement
10.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Problem statement
The Mission Statement:
Create the required
organisational
personal
technical
structure to match the expected size in time.
11.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Problem statement
There are no constants.
Embrace Change.
12.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
About booking
• 2006:
• Under 40 persons in IT.
• They know the code,
because they wrote it.
And the CPAN modules it uses.
• Conditional code in production.
Collection of statistics.
• No Ops team.
13.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
About booking
• Long startup time for new devs.
• Unstable, slow rollouts.
• Code hard to test, too many variants.
• Code hard to test, changing too fast.
• Drowning in Ops work, too many variants.
14.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
15.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
16.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
17.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
18.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
19.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
20.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
• Validate requirements:
Do they actually help improving the biz?
21.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
HIghest Paid Persons Opinion
Experiments kill HIPPOs
22.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
23.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
• Data proves:
• HIPPO ideas are 0% better than
improvements by random strangers.
24.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
• Data proves:
• HIPPO ideas are 0% better than
improvements by random strangers.
• Conclusion:
• The only reliable way to improve is to
run many experiments.
25.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
• Data proves:
• HIPPO ideas are 0% better than
improvements by random strangers.
• Conclusion:
• The only reliable way to improve is to
run many experiments.
• Velocity: Roll out code as fast as possible,
• and prove it with real users.
26.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://blog.ads.pof.com/2012/04/03/ throw-everything-you-know-about-ads-out-the-window-pics-inside/
27.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://blog.ads.pof.com/2012/04/03/ throw-everything-you-know-about-ads-out-the-window-pics-inside/
Experiments
28.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://blog.ads.pof.com/2012/04/03/ throw-everything-you-know-about-ads-out-the-window-pics-inside/
Experiments
29.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://blog.ads.pof.com/2012/04/03/ throw-everything-you-know-about-ads-out-the-window-pics-inside/
Experiments
30.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Experiments
• »Experiment« Framework
• Conditional Code,
• measure impact on conversion,
performance, etc.
31.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Velocity
• Focus is on capturing quantitative
(business) performance data.
• and a low Time To Rollout.
32.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
33.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Proven requirements
Experimental
Implementation
34.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Proven requirements
• Successful Experiment:
• Full On, even if it is painful!
It is earning money!
• Optimize that code.
• Trailing performance team sees only
business-positive code.
35.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Proven requirements
• Better insight than tests:
The best simulation of a real user is…
• There is a term for this:
Testing In Production
http://www.thetestingplanet.com/2011/11/the-future-of-software-testing-part-one-testing-in-production/
http://www.setheliot.com/blog/wp-content/uploads/2012/03/STP2012_503_A_to_Z_Testing_in_Production-v2.0.pdf
36.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Testing in production
• Experiment framework
• decoupling deployment/activation
• ramped activation
• exposure control
37.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Testing in production
• Load/Capacity test in production
• determine true capacity,
true failure mode
• use a probe to determine latency
• concentrate real user load on few
frontends, observe probe latency
38.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Testing in production
• Telemetry
• modern browsers can report page load
times back
• add additional system data
• Data mining
• real time monitors
• offline data mining
39.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Decision
• Velocity. Scalability. Performance.
• Prove business impact.
• Scale the method.
Create more great old ones.
40.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Scale the method
Wait.
What method?
41.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
42.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
Risk compensation is an effect whereby
individual people may tend to adjust their
behaviour in response to perceived changes
in risk. …
Another way of stating this is that individuals
will behave less cautiously in situations
where they feel "safer" or more protected.
http://en.wikipedia.org/wiki/Risk_compensation
43.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
Education
Visibility
Empowerment
44.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
45.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
Education:You should
know your trade.
We're painting you blue.
46.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
Visibility: Effects of changes
should be obvious.
Linear, continuous
systems.
47.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Shared Spaces
Empowerment:
Take away all mechanism
that makes decisions
=
Give back responsibility
48.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Booking Rule #1
If you break it,
will you even notice?
49.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Booking Rule #2
If you break it,
can you fix it?
50.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Craftsmanship
The ability to debug a user
story front to back,
from Biz to deployment.
51.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Culture of Failure
A good fail is fast and
early.
There is a lesson to take
away from a good fail.
Bad fails are extended
suffering and pain.
52.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
So what exactly?
• Hire experienced people
• Real-world goal vs. SE academics
code earning money vs. beautiful code
• with a proven track record in OSS
• working in a cooperative environment,
self-organizing, self-driven personality
53.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
So what exactly?
• We are not building on a green lawn in the
middle of nowhere
54.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
So what exactly?
55.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
So what exactly?
• We are not building on a green lawn in the
middle of nowhere,
• but we are also very aware of the fact that
code has a finite lifetime.
• In fact, more than 90% of our code
changes are thrown away.
56.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Components
• Experimentation
• Testing in Production
• Shared Spaces
• Education,Visibility, Empowerment
• A culture of failure
57.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
So how does this relate to DevOps?
58.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
59.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Kill all sysadmins!
• BOFH is a poisonous term
60.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Kill all sysadmins!
• BOFH is a poisonous term
• Infrastructure Developer
• automate infrastructure tasks
61.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Kill all sysadmins!
• BOFH is a poisonous term
• Infrastructure Developer
• automate infrastructure tasks
• Inhouse Operations Expert
• support developers before and after
failure
62.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
63.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Infrastructure Developer:
64.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Infrastructure Developer:
• Make sure the same features work at a 10x
scale.
65.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Infrastructure Developer:
• Make sure the same features work at a 10x
scale.
• Make sure things work with zero manual
interactions.
66.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Infrastructure Developer:
• Make sure the same features work at a 10x
scale.
• Make sure things work with zero manual
interactions.
• Mindset differs from feature dev a lot.
67.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
68.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Methods differ
69.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Methods differ
• Scrum-ish vs. Kanban-ish vs. Firefighting
70.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Methods differ
• Scrum-ish vs. Kanban-ish vs. Firefighting
• All have prio lists
• Feature dev: release oriented, timeboxed
• Infrastructure dev: mission oriented,
# of things in flight
• Translator,Agent: look at top10 things in
flames right now, pick any
71.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
72.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Inhouse Operations Expert
• Feature dev works on feature front to
back, biz to deploy
73.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Inhouse Operations Expert
• Feature dev works on feature front to
back, biz to deploy
• Infrastructure expert offer local special
knowledge, possible solutions and their
'prices'
• Enable dev to make informed decision
74.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Inhouse Operations Expert
• Feature dev works on feature front to
back, biz to deploy
• Infrastructure expert offer local special
knowledge, possible solutions and their
'prices'
• Enable dev to make informed decision
• Dev then still may choose to break things
75.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
76.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Example:
• DBAs are not 'owning' their databases
• Dev can get advice on schema design,
query help, etc at any timπe
• Dev can also elect to go forward against
this advice
77.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations POV
• Example:
• DBAs are not 'owning' their databases
• Dev can get advice on schema design,
query help, etc at any timπe
• Dev can also elect to go forward against
this advice
• The experts do not have control
78.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Lock in
• We are in fact locked in…
• Code changes must be small to debug,
so we MUST roll out often.
• "Book": No rollout for x months,
took weeks to reintegrate.
79.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Lock in
• Dependence on functional and fast
monitoring:
• Eventlogging breaks:
We cannot roll out.
• Monitors all over the place.
• Obsessed with data-based reasoning.
80.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Lock in
• Individual changes must be small and rolled
out fast:
• We cannot use GIT branches, they are
tools to accumulate large diffs.
• Unified codebase everywhere.
• We need to roll out systems even if they
do not change.
81.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Lock in
• We are load testing weekly:
• Codebase changes quickly.
• A lot of really bad code is put life in
experiments, has capacity impact.
• Load testing?
• In production, playing w/ LB weights,
of course.
82.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
It works for us
"Have you broken the site already?"
"No."
"What am I paying you for?"
-- CEO to new dev over lunch
83.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Craftsmanship
• Hire experts: "Fachwissen"
They know all possible design choices and
the price tags for each of them.
• Teach history: "Sachwissen"
The choices we made.
84.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Craftsmanship
• C-Level endorsement.
• Teach business to devs, dev to business
people.
85.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Craftsmanship
• No cop out:
You can get counselling,
but the choice to roll out is yours.
• You wrote it.You are the only expert on
that code we have.Your call.
• Avoiding risk compensation.
86.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
End-to-end responsibility
87.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
End-to-end responsibility
• DevOps is magic:
88.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
End-to-end responsibility
• DevOps is magic:
If you treat adult experts
as responsible adult experts,
they will handle themselves as responsible
adult experts.
89.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
No biz vs. dev
• We are doing many small projects.
• We are creating tight feedback loops.
• We are working interdisciplinary.
Business people sit with devs,
as needed.
Operations people sit with devs,
as needed.
90.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations as a service
91.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations as a service
• Primary goal:Velocity.
• Everything else we do as needed.
92.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations as a service
• Primary goal:Velocity.
• Everything else we do as needed.
• We are deploying imperfect, badly
performing or otherwise broken code, crap
schema designs, or break internal rules.
Tough luck. Deal.
93.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Operations as a service
• Primary goal:Velocity.
• Everything else we do as needed.
• We are deploying imperfect, badly
performing or otherwise broken code, crap
schema designs, or break internal rules.
Tough luck. Deal.
• Some people can't.They quit.
94.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Should you do it?
• Should you do it?
• Website.We control the rollout.
• High growth environment.
• 8 months/year in blue water.
• »Slack is good.«
Baby fat eaten by growth rapidly anyway.
95.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Hell yes
• Treat your responsible adults as responsible
adults, and they will handle themselves as
responsible adults.
• Kill HIPPOs with data.
• Measure. Real world data. For that, you
need to be live.
96.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
Live by the rules
If you break it, will you even notice?
If you break it, can you fix it?
97.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://booking.com/jobs
Join us!
98.
Booking.com, part of priceline.com (Nasdaq: PCLN), headquartered in Amsterdam, 50+ offices worldwide. www.booking.com/offices
http://booking.com/jobs
Join us!