Staff Software Engineer - Backend Pricing

About the Company:

At Coupang we are building the future of ecommerce. Born out of an obsession to make shopping eating and living easier than ever were collectively disrupting the multibilliondollar ecommerce industry from the ground up. We exist to wow our customers. We know were doing the right thing when we hear our customers say How did we ever live without Coupang We are one of the fastestgrowing ecommerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce.

We are proud to have the best of both worlds a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been at since our inception. We are all entrepreneurial surrounded by opportunities to drive new initiatives and innovations. At our core we are bold and ambitious people who like to get our hands dirty and make a handson impact. At Coupang you will see yourself your colleagues your team and the company grow every day.

Our mission to build the future of commerce is real. We push the boundaries of whats possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always on hightech and hyperconnected world.

About the Role:

As a Staff Software Engineer for the Pricing & Assortment Trust team building robust distributed systems for crawling extracting large volumes of assortment and pricing data. The goal is price and product intelligence from a variety of eCommerce sites.

In this role you will help us always meet the customer trust on price and choice expectations of our customers; by designing and maintaining resilient distributed data collection applications that overcome throttling and blocking challenges inherent in the realworld highvolume environments.

What You Will Do

• Serve as a technical expert and help us build and scale our ecommerce data extraction systems.
• In this role you will design optimize and operate highperformance API reverse engineering solutions and web sers to extract product data pricing inventory and other key insights from major online retailers and marketplaces.
• Develop and optimize largescale web sing pipelines to extract millions of ecommerce product pages daily.
• Reverseengineer ecommerce websites to identify the best sing strategies including API interception headless browsing and dynamic content rendering.
• Build distributed crawling solutions using AWS (EC2 Lambda S3 Kubernetes or other cloud computing environments.
• Implement antibot evasion techniques including IP rotation browser fingerprinting CAPTCHA solving and request throttling.
• Monitor debug and maintain sing scripts to ensure uninterrupted data extraction adapting to site changes in realtime.
• Process and clean extracted data efficiently optimizing storage in SQL/NoSQL databases or cloudbased data lakes.
• Collaborate with data and engineering teams to integrate sed data into analytics pipelines and realtime monitoring systems.

Basic Qualifications

• At least 7 years of experience working in web sing data extraction or related fields.
• Proven experience in highvolume highfrequency data collection capable of extracting millions of records per hour while maintaining efficiency and reliability.
• Strong experience with headless browsers (Playwright Puppeteer Selenium) for sing JavaScriptheavy sites.
• Proficiency in Python Node.js or similar scripting languages. Java experience is a bonus.
• Deep understanding of ecommerce site structures including pagination and API calls.
• Experience with proxy management IP rotation and bot mitigation techniques at scale.
• Handson experience with AWS (EC2 Lambda S3 CloudWatch) Kubernetes or containerized workloads for distributed sing.
• Familiarity with data storage formats (JSON CSV Parquet) and database technologies (SQL NoSQL DynamoDB Elasticsearch etc..

Nice to Have:

• Expertise with reverse engineering mobile apps and mobile app APIs.
• Expertise in realtime data processing pipelines and message queues (Kafka RabbitMQ SQS).
• Understanding of pricing intelligence and price monitoring
• Contributions to opensource web sing frameworks.

Equal Opportunities for All

Coupang is an equal opportunity employer. Our unprecedented success could not be possible without the valuable inputs of our globally diverse team.

Required Experience:

Staff IC