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The Journey to the New World

AWS Cloud

Andrew Tsui

EF Kids & Teens

CTO

Agenda

Introduction• Company & Products

Start of the Cloud Journey• Cloud Strategy & Roadmap

• Cloud Migration

Migration Key Learnings

Explore Cloud World• New Mindset

• New Opportunities

EF has >500 schools and offices in over 52 countries

45,000+ staff members

Headquarter: Shanghai China

Customer age group: 3 – 18

EF English First - EF Kids & Teens

Cities80+

Schools300+

Students300K+

Countries3

Start of the Cloud Journey

Idea

Why Cloud? Why AWS? How many do

we migrate?

Evolution – physical -> virtual -> cloud

Not only infrastructure playInitial – Global Support; Cloud maturity;

Market leader; Complete ecosystem.

Later – Technology innovation; Pre-

Sales and After-Sales Support

POC & Non live environments only?

Not mission critical only?

Hybrid – New vs Legacy? Or All in?

Hardware infrastructure savings

only?

Opportunity Cost is high

Start of the Cloud Journey

What is the ROI?

* New systems built on AWS

* Migrate all US DC to AWS SG

* Migrate all China DC to AWS BJ

* Direct Connect

* Strengthen cloud security -Tighten all access to all AWS resources, implement

DDOS protection，encryption.

* Optimize cloud resources.

* Implement DevOps best practices and processes – automate the whole release

cycle – one-click deployment

* Explore and POC Serverless computing direction (true form of cloud computing)

Phase 2 –Security & Automation & Serverless

* New enterprise Data Platform – Data Lake, Data Warehouse, and Big Data

Platforms to support Advanced Analytics

* New Advanced Analytics and AI systems – Machine Learning (Lead Score,

Retention, Learning Behavior and Results – Personalized Learning) and AI

(Chatbot and AR)

Phase 3 – BI & AI

Phase 1 – DC to Cloud Migration

Whole vision of the Journey

Serverless is the true form of Cloud.

Cloud Migration - Before

Now 100% of E1 products and systems

are running on AWS Cloud.

Phase 1 – 2017/03, 70% of Boston DC migrated to AWS Singapore

Phase 2 – 2017/06, 100% of Boston DC migrated to AWS Singapore

Phase 3 – 2017/08, MPLS connection established between AWS Beijing and Singapore

Phase 4 – 2017/10, 100% of China DC migrated to AWS Beijing

Strategy and Decision – 2016 Aug, Move all products to AWS Cloud

Cloud Migration - Roadmap

Cloud Migration - After

Explore AWS Cloud World

Migration

New Mindset /

Think Differently

* A means to an end

* To the new cloud world

Explore AWS Cloud World

* Capacity Planning

• Old way - Plan for the max (just add)

• New way - Plan for min (+ resource/cost optimization)

• New new way – No need to do capacity planning? Serverless

* Design & Architecture

• EMR – Allows us to separate data layer from the compute layer – can

add more data without adding more nodes – can bring up and down

compute clusters anytime

• HDFS vs EMRFS / S3

Leverage AWS Innovation

Explore AWS Cloud World

* Big Data & Machine Learning

• Collect student learning behaviors -> Identify learning patterns ->

Predict performance and learning needs -> Recommend best

learning path

• Personalized & Adaptive Learning

* Chatbot

• Customer Service & Product Support

• Learning Assistant

* Computer Vision

• AR and VR in Student Apps

* Barriers to entry

* Opportunity cost

持续扩展，灵活支持

Benefits from AWS Cloud

For the past year, we have

grown the number of

students 170% and

expanded the number of

schools from 200 to 300.

AWS infrastructure supports

this rapid growth flexibly.

轻松运维，团队提升

Our operational pressure is

greatly reduced，DevOps!!!

And our team expands and

improves technical ability

constantly.

客户体验，业务创新

We’ve built many new online

products to provide better

learning experience to our

customers. We can leverage

more AWS technologies to

help us to build our systems

faster and innovatively.

突破边界，始终前行

Allowing us to easily tap into

the leading edge technology

in the cloud such as

AI, machine learning, Big

Data...without any

infrastructure investment,

AWS cloud has all the

technologies and services

that we need.

We are looking for AWS talents! Especially AWS architect!