Data science at Netflix goes far beyond eponymous recommendation systems and touches every aspect of the business, from optimizing content delivery to fighting fraud. Netflix’s unique culture affords its data scientists extraordinary freedom of choice in tools, which results in an ever-expanding set of machine learning (ML) approaches and systems. In 2019, Netflix open-sourced Metaflow, its human-centric ML platform. In this session, Netflix shares some lessons learned in its multi-year journey building the ML systems that Metaflow incorporates, covering a diverse range of scale from one-time experimentation on laptops to large-scale model training and serving systems on AWS.

Now, using Amazon S3 as our data lake has paid off significant benefits for us over the years. It has allowed us to decouple compute from data storage, which means that now we can invest in different querying engines, different compute engines, and we can move as the industry moves."
Savin Goyal
Software Engineer, Netflix
AWS Services Used
Amazon S3
Amazon Simple Storage Service (Amazon S3) is an object storage service offering industry-leading scalability, data availability, security, and performance.
Explore Netflix's journey of innovation using AWS
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How Netflix is Using IPv6 to Enable Hyperscale Networking
In this AWS re:Invent session, follow the Netflix cloud networking team on a journey to understand the scaling challenges that Netflix faces with IPv4 and the drivers for IPv6. -
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Keeping Netflix Reliable Using Prioritized Load Shedding
In this 2021 AWS re:Invent session, learn how Netflix set out to be more resilient by consistently prioritizing requests across device types, progressively throttling requests based on priority using Amazon Elastic Compute Cloud (Amazon EC2), and validating assumptions by using chaos testing (deliberate fault injection) for requests of specific priorities. -
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A Day in the Life of a Netflix Engineer
This entertaining journey through the tech stack serves as an introduction to how Netflix thinks about and designs systems, the Netflix approach to operational challenges, and how other organizations can apply the company's thought processes and technologies. -
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Another Day in the Life of a Cloud Network Engineer at Netflix
In this AWS re:Invent session from 2018, learn how the cloud network engineering team at Netflix automates and manages an infrastructure that services over 125 million customers using Amazon Route 53 and Amazon Elastic Compute Cloud (Amazon EC2).
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