What Language to Show?

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Prosenjit Bhattacharyya Engineering Manager

Ballav Bihani Senior Software Engineer

Jose Moreno Senior Software Engineer

What is Netflix?

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Netflix Everywhere● Smartphones and Tablets● Smart TVs● PCs● Advanced Consoles● Streaming Media Players● Set-top Boxes

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Netflix is Global

● 190 Countries/Regions● 23 Supported Languages

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Netflix is available in countries colored red

Unique Challenges● Films 3 times a week● Released globally in 23 languages● 12 hour turnaround for translations

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Freedom and Responsibility

● Microservices Architecture● Highly Aligned, Loosely Coupled

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A World of Locales

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Global footprint● Sign-up experience

○ Locale○ Catalog ○ Pricing - currency symbol○ Date format

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Language selection signals

● Non-member○ Geo-location○ Preferred device locales ○ Languages/font support on the device

● Member ○ User locale preferences○ Languages/font support on the device ○ Geo-location

● User experience○ Fallback locales

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Language Selection Service

● Common service for locale selection.

● Used by all user-facing Netflix apps for locale selection.

● Easily override ICU data based on business rules for the selected locale○ Date format○ Currency symbol○ Month names○ Locale fallbacks

● New language launch○ Locale available immediately in Netflix apps.○ Easy test setup for new language launch..

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LSS Architecture

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LSS Architecture

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Lessons learned

● No regression for the current member experience.

● Different language tags ○ zh-Hant ○ zh (older devices)○ zh-TW (some browsers)

● Dual catalog countries (Belgium)○ fallback ○ non-member - nl,fr, en (nl or fr based on device pref.)

● Helps fix issues by adding rules in one centralized place - all platforms covered.

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