apidays Paris 2022 - APIs the next 10 years: Software, Society, Sovereignty, Sustainability December 14, 15 & 16, 2022 Lessons learned from BlaBlaCar Antoine Lefebvre, Data Engineering Product Owner & Sandi Endo, Product Data Analyst at BlaBlaCar ------ Check out our conferences at https://www.apidays.global/ Do you want to sponsor or talk at one of our conferences? https://apidays.typeform.com/to/ILJeAaV8 Learn more on APIscene, the global media made by the community for the community: https://www.apiscene.io Explore the API ecosystem with the API Landscape: https://apilandscape.apiscene.io/ Deep dive into the API industry with our reports: https://www.apidays.global/industry-reports/ Subscribe to our global newsletter: https://apidays.typeform.com/to/i1MPEW

1. Sustainable IT at
BlaBlaCar
Where to Start?

2. 2023 SERIES OF EVENT
New York
May 16&17
Australia
October 11&12
Singapore
April 12&13
Helsinki & North
June 5&6
Paris
SEPTEMBER
London
November
15&16
June 28-30
SILICON VALLEY
March 14&15
Dubai & Middle East
February 22&23

3. Today’s
speakers
Antoine Lefebvre
Data Product Owner
Sandi Endo
Data Product Analyst

4. We are innovating, taking risks, building an entirely
novel solution, walking on unbeaten paths. We will
sometimes fail along the way. That’s part of the story,
and we will collectively learn from these failures to
become stronger as a result.

5. Sustainable IT
Challenge 2022

6. Let’s do
Green IT!
Let’s do
Green IT! Let’s do
Green IT!
Let’s do
Green IT!
Let’s do
Green IT! Let’s do
Green IT!

7. By the way, you’ll need to
dedicate around 1 or 2 days a
month

8. Let’s do
Green IT!
Let’s do
Green IT!

9. Lesson #1
Build a group of Green IT
champions

10. Approach to the challenge
1
Take a User Journey in your
application
2
Assess the environmental
impact of each step
3
Improve your app to
greenify the User Journey

11. Focus on
Search

12. Step 1
Launch App/
Login
Slow app startup =>
Frustration => Change of
phone
Network usage =>
infrastructure, energy
used,...
Trackers => Servers, Data
centers

13. Step 2
Search
details
Location auto-complete
- Network usage
- Use of Google Maps API
(Servers, Data Centres,...)
Trackers

14. Step 3
Search
Request
Request to Server
(Network, CPU, Database
storage)
Trackers

15. Can we reduce the
number of searches
the user does?
Can we limit how
many times we fetch
results from the
server?
Can we save the
results of searches
that were already
made?

16. Product Manager
UX Design
iOS Developer
Android Developer
Web Developer
Engineering
Manager

17. Data Product
Analyst
DevOps
Manager
Data Product
Owner
Product
Manager

18. Approach to the challenge
1
Take a User Journey in your
application
2
Assess the environmental
impact of each step
3
Improve your app to
greenify the User Journey

19. Lesson #2
Dedicate a full team to a Green IT
project

21. The Mentors
❤

23. Lesson #3
Don’t miss the opportunity to
connect with other companies

24. Sustainable IT
at BlaBlaCar

25. Another approach
to Sustainable IT
1
Build reporting on your CO2
impacts (or get it from your
Cloud Provider)
2
Drill down into the most
impacting applications
3
Find ways to reduce the
amount of resources used

28. Lesson #4
Data Visualization helps focusing
on the right stuff

31. Servers efficiency
Datadog nodepool overview
Yellow: used
Light blue: requested
Dark blue: available
CPU: kcores
Mem: TB

33. Lesson #5
Reducing your running costs will
reduce your CO2 impact (usually)

34. Giving visibility on our Carbon Footprint
Warehouse
Reporting
Automation Data Science Algorithms Business Intelligence

36. Bring Speakers to
evangelise on
sustainability
Get people trained
on eco-conception
Next Steps
Participate to the
next Sustainable IT
Challenge
Deliver a project to
reduce our carbon
footprint
Plant Trees

37. Lesson #6
You can’t stop

38. Lesson #6
You can’t stop
Lesson #5
Reducing your
running costs will
reduce your CO2
impact (usually)
Lesson #4
Data Visualization
helps focusing on the
right stuff
Lesson #3
Don’t miss the
opportunity to
connect with other
companies
Lesson #2
Dedicate a full team
to a Green IT project
Lesson #1
Build a group of
Green IT champions