Coupang is reimagining the shopping experience with the goal of wowing each customer from the instant they open the Coupang app to the moment an order is delivered to their door. Powered by an outstanding end-to-end e-commerce and logistics network and a fanatical culture of customer centricity, Coupang has broken tradeoffs around speed, selection and price.

Role Overview
CMG Measurement is a key team in the Ads Infrastructure organization. We build the big data platform that processes all the Coupang Ads data, which involves enrichment, aggregation, attribution, settlement, measurement and more.

We are looking for passionate backend software experts to build large scale data processing systems that power our Ads business. Our mission is to design and build a scalable, extensible and resilient data processing infrastructure that powers our Ads business with big data and build scalable realtime services to serve the data.

Let's create a world in which customers ask “How did I ever live without Coupang?” together!

What You Will Do:

Led the technical directions for the team.
Design and build large-scale data processing systems and infrastructure for Coupang Ads
Understand Ads business logic and be able to translate it into distributed and efficient data processing models
Contribute to the design and development of our next-generation data processing platform that can support our rapidly growing Ads business for the years to come

Basic Qualifications:

Bachelor’s degree in Computer Science or Computer Engineering or electrical/electronic engineering, mathematics or equivalent
8+ years of solid work with fundamental algorithms, system design, and large distributed systems
8+ years of coding experience in one of the following: C++, Java, Scala
Self-starter and innovator who likes to solve complex problems
Proven track record of taking ownership and successfully delivering results
Ability to clearly and concisely communicate with technical and non- technical stakeholders across all levels of the organization
Ability to work in multi-cultural, cross functional team
Experience building highly scalable systems in a fast paced, team-oriented environment
Experience building systems in ads area
Experience leading a project of building large scale data process system

Preferred Qualifications:

Ability and desire to drive solid design work on multi-threaded/multi-process, distributed system
A passion to explore, improve, automate and optimize distributed systems and tools
Ability to think outside-the-box and challenge conventional wisdoms
Experience with advertising systems/Search advertising/Advertising Marketplace/Display advertising/Ad Server
Experience working with AWS (Amazon web services)
Experience working in startups
Experience with Search Indexing, Elasticsearch
Experience with Spark/Hbase/Hive/Kafka