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Next generation apps
The future at Mercari US
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About me
Tsuyoshi Yoshioka (@tsuyogoro)
Mobile App engineer
(Android / React Native / Scrum master)
Mercari, Inc
since Mar, 2016
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About Mercari US
● Initial release was in 2014
● “Only delivery (No meet up) / pure C2C service”
● Keep growing -> finally achieved $100 million monthly GMV in 2020.
Tokyo
PaloAlto
Boston
Portland
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History of Mercari US Mobile App
Launch in US
(2014)
Re-architect
(2017)
Re-branded
(2018)
Next…
(2022)
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Next?
$100M
/month
X times within
a few years
We have to update the way to run!!
$?M
/month
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Challenges to advance to the next stage
1. Next Quality : Keep UX consistency between platforms
2. Next Speed : Achieve faster delivery for quick iterations
3. Next Scale : Build a more scalable team
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1. Next Quality : Keep UX consistency between platforms
We’re confident in our app UX
But, some of features are
implemented only on either platform
Opportunity loss!!
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2. Next Speed : Achieve faster delivery for quick iterations
Ideal PDCA cycle
Our real
(Very bad case)
Huge cost to
organize team
Timing to release
may not be same
Cannot have time
for 2nd iteration
anymore
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3. Next Scale : Build a more scalable team
Fast onboarding
Self designed
framework
Features Features
Major/Light framework
Thin self
framework
Now Ideal
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3. Next Scale : Build a more scalable team
Bring better scalability to product organization
Waiting for iOS and Android assignment....
Project A Project C
Project B Project E
Project D
Project A Project B
...
Project C Project D
Project E
If we can solve this queue...
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Challenges to achieve next stage
1. Next Quality : Keep UX consistency between platforms
2. Next Speed : Achieve faster delivery for quick iterations
3. Next Scale : Build a more scalable team
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HOW…??
+
Re-write apps
completely
in React Native
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Approach (Technical)
Features
Major/Light framework
Thin self
framework
- Utilities
- Mercari Design system
- Redux
- Redux toolkit
- React Navigation
Engineers can
- build features with general approach
- achieve UI consistency without much effort
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Approach (process)
Program manager
Mission
Take team to the goal
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Approach (process)
Break down to sub goals!!
(Milestone definition)
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Approach (process)
Before climbing, let’s discuss how
much we wanna climb today!!
(Sprint / Sprint planning)
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Approach (process)
Let’s change original path!!
(Milestone management)
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Approach (process)
We’ll be here Early in 2022…!!!!
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Wrap up and looking forward to 2022...
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Next stage
Mobile team is driving 2 trains!!
● ReactNative rewrite
○ Aiming to complete App rewrite in early 2022
● Native app
○ Keep making growth on our product
○ Keep app quality until rewrite gets success
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Highly recommend you to apply if...
Android
engineer
You are iOS
engineer
ReactNative
engineer
You are
Motivated
to get ReactNative skill
You
want to
See the success of Mercari US
&& &&
&&
&&
|| ||
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Uniqueness of Mercari from engineering organization view
● Switching to remote first company
● Hiring talented engineers from whole of US
● People in Japan can join SW development happening in Bay area
● “Ultimate” remote software development
(24 hours active, various type of cultures in our team...etc)
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Thank you for listening!!
Join us to get success in US market !!