The document provides an overview of a senior software engineer position at Netflix, highlighting the company's extensive reach and commitment to a culture of freedom and responsibility. It discusses the technical responsibilities related to playback and edge access services, including device authentication, performance, scalability, and resiliency. The ideal candidate should possess strong programming skills, a passion for solving problems, and a willingness to collaborate and learn in a dynamic environment.

1. Senior Software Engineer
Team & Job Overview

2. World’s Leading Internet TV Network
● Opportunity: > 700M Broadband Households
● 117M+ Members
● 190+ Countries
● 2000+ Device Types
● 125M+ Viewing Hours / Day
● Commercial Free
○ TV
○ Movies
○ Original Content

3. With Continued Growth
Source: https://www.statista.com/chart/9799/netflix-vs-cable-pay-tv-subscribers/

4. At Tremendous Scale

5. Freedom & Responsibility Culture
Every Netflix employee has the freedom to do their best
work and the responsibility to achieve excellence.
Values Are What We Value
● Judgment
● Communication
● Impact
● Curiosity
● Innovation
● Courage
● Passion
● Integrity
● Selflessness
● Diversity & Inclusion
See https://jobs.netflix.com/culture
for more information on our innovative
Freedom & Responsibility culture

6. Playback & Edge Access Services (PEAS)
Provide server-side device activation and
authentication, and orchestrate user
authentication and token management via
Edge Authentication Services.
Playback Access
Playback Access Teams
Playback Licensing (PBL)
Provide content licensing via Digital Rights
Management (DRM) and license accounting
server technologies.
Enable a secure viewing
experience for our members &
protect access to Netflix content

7. Playback & Edge Access Services
Core Focus Areas
● Server-side Device Activation & Authentication
● User Authentication and Token Management

8. Playback Access: Critical to Playback Experience
Playback
Access Team
Domain

9. Device Activation & Authentication
?
?

10. For 2000+ Device Types (and growing)
http://devices.netflix.com

11. Access to Protected Content
Or, what happens when you push PLAY?
● This user
● This device
● This content
● This resolution
License!
Playback Access Services
● Valid user / device
● Content usage / resolution policies
● Plan / device limits enforcement
● DRM / License generation

12. Challenge: Performance / Scalability
Playback Access services are in the critical path for the Netflix user experience
● Services must be performant
● Services must be available with a 99.99% SLA
● Services must scale dynamically, to support Stream Starts per Second:
Using techniques like Predictive Auto Scaling (http://techblog.netflix.com/2013/11/scryer-netflixs-predictive-auto-scaling.html)

13. Challenge: Resiliency
The Simian Army is a group of programs that
intentionally introduce errors into our systems
to proactively find problems that typically get
detected during a production alert.
See http://techblog.netflix.com/2011/07/netflix-simian-army.html
and related Netflix technical blog posts for more detail.

14. DevOps Culture: Operate What You Build
Insights into our systems enables
Operational Excellence

15. Playback Access Technology Stack

16. Developer Tools: Code, Build, Bake, Deploy
https://medium.com/netflix-techblog/how-we-build-code-at-netflix-c5d9bd727f15

17. What Will You Learn?
● Develop cloud-based device authentication and content access solutions that are
useful for improving the Netflix user experience
● In partnership with device teams, develop new ways to stream Netflix
●
● Take end-to-end ownership of major features and components
● Expand your knowledge, working quickly on cutting edge technologies
● Have fun!

18. About YOU!
● Strong object oriented design and programming
● Experience delivering scalable distributed systems
○ Preferably in the cloud
● Bonus: exposure to security concerns / technologies and protocols
○ You don’t need to be a security expert to be successful on our team!
● You:
○ Love solving tough problems
○ Enjoy working collaboratively with other engineers
○ Like to ship and support solutions that you design and build
○ Are curious about technology
○ Love to learn and grow as an engineer
○ Consider writing code your craft and you write code for fun

19. Interested?
Karen Casella
Engineering Leader
kcasella@netflix.com
http://www.linkedin.com/in/kcasella
@kcasella
Current Openings
● Playback & Edge Access Services:
https://jobs.netflix.com/jobs/864738
Recent Team Publications
● Event Sourcing @ Scale
○ Blog Episode #1: https://goo.gl/M7wBeV
○ Blog Episode #2: https://goo.gl/MCK9Y5
○ QCon NY Presentation: https://goo.gl/h3iUvm