Back End Developer

• Company Coupang
• No. of Openings 10+
• Salary Not Disclosed
• Work Type on-site

Job Description :

Company Introduction

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. Today, we provide exceedingly fast shipping speeds on millions of items including fresh groceries, delivered within hours nationwide, 365 days a year.

We are doing this for millions of consumers in Korea. Korea is home to one of the largest and fastest growing e-commerce opportunities anywhere in the world.

Role Overview

The Recommendation team is responsible for Coupang’s related product recommendation, personalized gateway, widget ranking, and product review quality. Related product recommendation is a fast-growing area and we are continuously improving recommendation quality to help more and more customers find the best products for them. We have also started investing in personalized Gateway, aiming to build one of the best e-commerce discovery experiences. We use the state of the art Machine Learning and Deep Learning technologies, and we continuously innovate and build highly scalable systems to support the growing business and customer engagement.

As a Senior Backend Engineer for Recommendations, you will be responsible for the design, development and maintenance of the Recommendation ecosystem. This encompasses our online ranking system, multiple data pipeline that produces the features (offline and online) used across our different ranking logics, a serving system that produces content for most of Coupang app.

Key Responsibilities:

• Own the Recommendation service, one of the most critical for Coupang to make sure we are wowing customers constantly.
• Knit across teams by collaborating with product managers and designers and other functions to build holistic experience that's right for Coupang users.
• Lead each step of the product development process, from ideation to implementation to release; from rapidly prototyping, running A/B tests, to architecting and building solutions that can scale to support millions of users.
• Mentor and grow junior engineers on the team.
• Contribute best-in-class programming skills to develop highly innovative consumer-facing mobile products

Qualifications:

• Bachelor's degree in Computer Science or Computer Engineering or electrical/electronic engineering, mathematics or equivalent
• 2+ years of relevant industry experience with distributed systems, transactional datastores, and systems programming.
• 2+ years of solid work with fundamental algorithms, system design, and large distributed systems
• 2+ years of coding experience in one of the following: with: C++, Java, Scala
• Experience in building and owning critical user-facing API platform and corresponding backend data systems, and solving complex design, scaling, latency, or performance problems in high-volume low-latency distributed systems.
• Strong communication skills.

Preferred Qualifications:

• Experience in distributed processing using EMR, Spark, Hive, or other big data frameworks.
• Experience in Stream-processing systems (Kafka, Storm, Spark-Streaming or equivalent) is a plus.