Security Automation Engineer

Company Introduction

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce 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 since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on 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 what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview

The Detection Engineering (DE) team within Coupang’s Digital Trust organization designs and operates end-to-end security threat detection and response automation systems. Our mission is to build an AI-powered Security Operations Center (AI-SOC) that enables faster, more accurate, and scalable security operations through intelligent automation. Working under a Detection-as-Code philosophy, we manage the entire detection lifecycle, including threat scenario development, log collection, detection engineering, automated response orchestration, and AI-driven threat analysis.

As part of the Automation Engineering pillar, this role is responsible for designing, developing, and operating automated workflows that analyze, investigate, and respond to security threats at scale. The team builds and maintains integrations across a broad range of security platforms, develops AI Agent and LLM-based analysis capabilities for automated triage and investigation, and ensures the reliability, scalability, and operational excellence of critical security automation systems in production. This position offers the opportunity to shape the future of AI-driven security operations by building the technologies that power Coupang’s next-generation AI-SOC platform.

What You Will Do

Design and develop normalization, enrichment, and automated triage workflows to analyze and process security detection events at scale.

Design, develop, and operate SOAR workflows that streamline and automate security operations processes.

Build and maintain integrations with security platforms and external services, including SIEM, EDR, CTI, ticketing systems, and SaaS/API-based solutions.

Develop and enhance the AI-SOC framework by creating LLM-based triage and analysis logic, confidence scoring mechanisms, and automated response orchestration capabilities.

Drive operational excellence by managing incident response for SOAR and automation systems, operating logging and monitoring infrastructure, and improving system reliability.

Design and implement automated response scenarios based on detection use cases while collaborating closely with SOC and Incident Response teams.

Analyze and optimize automation workflows by identifying performance bottlenecks and driving continuous improvements in efficiency, scalability, and effectiveness.

Basic Qualifications

5+ years of professional software engineering experience with strong proficiency in Python development, including modular design, code quality, exception handling, and testing

Experience designing, implementing, and improving security event processing, detection, and response workflows through software engineering

Hands-on experience w