Intuit's Group Engineering Manager, Aravinda Gollapudi, presents Mint's Journey over the years at the 2015 Grace Hopper Celebration of Women in Computing.

1. 2015
Agility & Continuous
Deployment:
Mint’s Journey
Aravinda Gollapudi
October 16, 2015
#GHC15
2015

2. 2015
Who Am I?
 Group Engineering Manager, Intuit
− QuickBooks, Mint, Payments
 Director of Engineering, Rearden Commerce
 Sr. Engineering Manager, Sidestep & VeriSign
 MS in Computer Engineering & MS in Physics

3. 2015
Evolution of Agile at Mint
How we moved from the slowest Agile
deployment to something no text book
would cover

4. 2015
What is Mint?

5. 2015
Sprint or Trot?
 Web, platform (business logic, async, notifications) bundled in deployment
 Trains planned to leave on time every 4 weeks
Wk1 Wk2 Wk3 Wk4
Development
QA
Wk5 Wk6
Deploy
Simple UI changes took 4 weeks or more to deploy

6. 2015
Testing and Deployment
Defects Days
Slipped
0
5
10
15
20
25
0
10
20
30
40
50
60
70
80
90
100
1 2 3 4 5 6
Bugs to Verify # of Days Slipped
Sprints
Release predictability impacted by finding defects late

7. 2015
Site Down to Deploy!

8. 2015
Frustration!

9. 2015
How Did We Fix This?
Process
Mindset
Quality
Tools
Architecture

10. 2015
Rethink Architecture
Decompose web layer. Deploy it to production sooner!

11. 2015
Split Presentation & Platform
Web
Content
Business Logic
+ Persistence
Web Browser
Business Logic
+ Persistence
Static Content
Services
Data Interchange
Web Browser

12. 2015
Performance Improvement
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
1
2
3
4
5
6
9/30/12 12/31/12 3/31/13 6/30/13 9/30/13 12/31/13 3/31/14 6/30/14 9/30/14 12/31/14 3/31/15
Requests/Week(Millions)
TP50Seconds
Overview Page
Latency Volume

13. 2015
Invest in Tools

14. 2015
Quality Investments?
 Speed up tests!
 Integrate them into developer environment.
 Code cannot be checked in if unit tests and
automation fail.
 Do not ignore fragile, flaky/unmaintainable
tests … do something about them!

15. 2015
Engineer Role Shift
Developer
QE
Operations
Tools

16. 2015
Deployment Rate > 1000%
Before
After
Weeks

17. 2015
Mint Dashboards
New Relic: Browser Latency Splunk: Volume and Latency Excel: CtCF and SLAs
Graphiti: Business Metrics AWS: CloudWatch Icinga: Tactical Overview

18. 2015
Takeaways
 Set clear goals
− Rapid customer feedback
− Automated, independent, frequent deployments of small
chunks
 Don’t be afraid to challenge process
 It’s not only about technology – culture matters
− Change, ownership, craftsmanship
 Invest in continuous improvements

19. 2015
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