---
title: 'Staff Security Engineer, Penetration Tester at Coupang'
canonical: 'https://feeny.ai/job/staff-security-engineer-penetration-tester-coupang-taipei-qyzs20cmegpk'
type: 'job'
last_seen: '2026-09-11'
---

# Staff Security Engineer, Penetration Tester at Coupang

- **Company:** Coupang
- **Location:** Taipei, Taiwan
- **Posted:** 2026-09-03
- **Last confirmed live:** 2026-09-11
- **Apply:** https://www.coupang.jobs/en/jobs/?gh_jid=8172730

## Job description

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. Our services in Taiwan include “Rocket Delivery” which offers next-day delivery for a wide selection of items at affordable prices, “Rocket Overseas” which offers free international delivery on millions of best-selling products from Korea, the U.S., and beyond. We are looking for talents to help us lead Coupang’s expansion in Taiwan. This is an exceptional opportunity to become a part of Coupang’s growth in Taiwan and create a world where our customers wonder, “How did I ever live without Coupang?”

Position: Staff Security Engineer, Penetration Tester

The Staff Security Engineer will conduct hands-on penetration testing across web, mobile, API, and cloud-related environments supporting Coupang’s security activities and services in Taiwan. This role will identify and validate vulnerabilities, communicate technical impact, and provide actionable remediation guidance while working with the Korea security team. The staff engineer is expected to independently own penetration-testing engagements and provide technical guidance to fellow engineers. The role will help maintain consistent security-testing delivery across complex applications, external services, and internal systems in a high-tempo, cross-regional environment.

What will you do?

- Lead or execute authorized penetration-testing engagements across web applications, mobile applications, APIs, and cloud-related attack surfaces.
- Define testing scope, identify attack surfaces, select appropriate testing methods, and document evidence, limitations, and outcomes.
- Assess discovered vulnerabilities, validate technical impact, distinguish verified findings from false positives, and provide remediation guidance.
- Use Linux, command-line utilities, and penetration-testing tools to perform controlled testing and verify results.
- Build or modify scripts that support request automation, test-data processing, or security-test result analysis.
- Coordinate testing scope, ownership boundaries, escalation paths, status updates, and deliverables with the Korea security team and Taiwan stakeholders.
- Independently manage engagement priorities and review testing output to identify gaps and provide specific technical guidance.

## Basic Qualifications

- Demonstrated hands-on penetration-testing capability across web, mobile, or API environments.
- Demonstrated experience using penetration-testing tools in Linux or command-line environments.
- Ability to assess vulnerabilities, explain supporting evidence and impact, and provide actionable remediation guidance.
- Experience testing multiple applications, external services, or internal applications through penetration-testing or legally authorized bug-bounty work.
- Offensive-security experience sufficient to carry out penetration-testing engagements.
- Fluency in both Mandarin Chinese and English, able to communicate security findings and remediation guidance in English and Mandarin Chinese.
- Ability to collaborate across Taiwan and Korea security activities, including scope coordination, responsibility boundaries, escalation, and delivery communication.

## Preferred Qualifications

- Experience in Red Team or adversary-simulation experience in a complex application environments.
- Exposure to cloud-security testing, including architecture, identity and access, public interfaces, or configuration risks.
- Relevant offensive-security certification such as OSCP, OSCE, OSED, CREST, or SANS.
- Ability to demonstrate an authorized penetration-testing case covering scope, methodology, evidence, findings, limitations, and delivery outcome.
- Ability to complete a controlled attack-surface analysis and testing plan for a multi-interface application.
- Ability to compare remediation options based on risk reduction, constraints, and validation approach.
- Ability to prepare concise bilingual security summaries for technical and cross-regional stakeholders.
- A degree in Computer Science, Computer Engineering, or a related field.

Recruitment Process

-

- Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview - Offer
- The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
- Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

Details to Consider

-

- This job posting may be closed prior to the stated end date for application if all openings are filled.
- Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
- Those eligible for employment protection, including recipients of veteran’s benefits and persons with disabilities, may receive preferential treatment for employment in accordance with applicable laws.

Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/

## About Coupang

## Company Overview
- **One-liner**: Coupang is a global technology and Fortune 150 company that reimagines commerce by integrating e-commerce, logistics, last-mile delivery, restaurant delivery, video streaming, and fintech services to wow customers.
- **Entity Type**: Public (NYSE: CPNG)
- **Headquarters**: Seattle, Washington, USA (global HQ); operates major hubs in Seoul, South Korea, and other locations.
- **Founded**: 2010
- **Founders**: Bom Kim (Bong-Seok Kim)

## Core Business
- **Primary industry/industries**: E-commerce, Logistics & Fulfillment, Retail, Food Delivery, Fintech, Content Streaming, AI-driven Commerce.
- **Target customers**: B2C (primarily consumers in South Korea, with growing global operations including Taiwan, Singapore, and the U.S.).
- **Mission or purpose statement**: "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?'"

## Products & Services
- **[Coupang (Rocket Delivery)](#)**: Core e-commerce platform offering millions of products with over 99% of orders delivered same or next day via a proprietary logistics network. Includes Rocket Fresh (groceries) and Rocket Now (ultra-fast delivery).
- **[Coupang Eats](#)**: Restaurant food delivery service.
- **[Coupang Play](#)**: Video streaming service (original content, sports, and licensed shows).
- **[Farfetch](#)**: Global luxury fashion platform acquired by Coupang.
- **[Coupang Fintech](#)**: Payment and financial services (e.g., Coupang Pay, credit card partnerships).
- **[Coupang Logistics & Fulfillment Services](#)**: End-to-end logistics for third-party sellers and brands.
- **[Rocket Growth](#)**: SaaS-like tools and services for sellers/suppliers to manage inventory, analytics, and advertising.

## Market Standing
- **Valuation/Market Cap**: ~$25.8 billion (as of mid-2026) [LinkedIn].
- **Key Metric**: Annual Revenue of **$34.5 billion** (most recent fiscal year) [LinkedIn].
- **Notable Investors/Partners**: Publicly traded on NYSE (institutional investors include SoftBank, BlackRock, Fidelity, and others). Key partners include major global brands and local Korean suppliers.
- **Growth Signals**: 
    - Ranked **#132 on the 2026 Fortune 500**, jumping significantly [investor relations].
    - Rapid AI-driven global commerce expansion (e.g., Taiwan, Singapore, and U.S. tech hubs).
    - 5,940 employees (linkedIn data, with monthly headcount growth of +1.1% and quarterly job posting growth of +154.2%).

## Competitive Advantages
- **Fully Integrated Infrastructure**: Coupang owns and operates over 100 fulfillment and logistics centers (covering tens of millions of square feet) combined with proprietary software, AI, and machine learning to predict demand and route deliveries — a moat that competitors in Korea and emerging markets find hard to replicate.
- **Speed & Reliability**: Over 99% of orders delivered same or next day (including dawn delivery) 365 days a year, setting a bar that most global e-commerce players cannot match.
- **Customer Obsession Culture**: "Wow the Customer" is a core leadership principle, driving constant innovation to break traditional tradeoffs (speed, selection, price).
- **Startup Culture with Fortune 150 Resources**: Offers the agility and risk-taking of an early-stage company combined with the stability, compensation, and scale of a large public corporation.

## Strategic Focus
- **AI & Technology Leadership**: Heavy investment in AI/machine learning for demand forecasting, dynamic routing, and customer personalization. Actively hiring senior ML and data engineers [careers page].
- **Global Expansion**: Leveraging its Korean infrastructure playbook to enter new markets (Taiwan, Singapore) and grow its global footprint.
- **Diversification into Fintech & Content**: Building out Coupang Pay, Coupang Play, and fintech products to create an ecosystem (similar to Amazon Prime's strategy).
- **Farfetch Integration**: Turning the luxury fashion platform into a global growth driver.

## Why Work Here
- **Culture**: "Best of both worlds" — startup energy (fast decision-making, ownership, risk-taking) with the resources of a Fortune 150 company. Flat hierarchy, open culture, and a strong "bias for action" ethos [coupang.jobs].
- **Remote/Hybrid/Office Policy**: Flexible working hours and work-from-home options are available. Many roles are based in offices (Seattle, Mountain View, Seoul, etc.) with state-of-the-art amenities including cafeterias serving three meals a day, lounge spaces, and coffee/snack bars.
- **Benefits**:
    - Medical insurance for employee and direct family.
    - Paid family leave (for celebration or bereavement).
    - Learning programs (foreign languages, soft skills).
    - Global project opportunities (collaborate with teams across continents).
    - Team and company events (games, food, bonding).
- **Engineering Culture**: High-impact projects — building the commerce infrastructure of the future (large-scale AI, logistics optimization, mobile-first, search & discovery). Emphasizes "Hire and Develop the Best" and "Learn & Iterate" principles.
- **Career Growth**: Opportunities for internal rotations, upskilling, and taking on entrepreneurial initiatives within a massive scale.

## Sources
1. [Coupang Careers](https://www.coupang.jobs/en/)
2. [Why Work at Coupang](https://www.coupang.jobs/en/why-coupang/)
3. [Coupang About Us](https://www.aboutcoupang.com/aboutus/)
4. [Coupang Investor Relations](https://ir.aboutcoupang.com/overview/)
5. [LinkedIn - Coupang](https://www.linkedin.com/company/coupang)

## Other roles at Coupang

- [[TW Catalog] Staff Back-end Engineer](https://feeny.ai/job/tw-catalog-staff-back-end-engineer-coupang-beijing-h3q8q45wyb80) — Beijing, China
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- [Merchant Quality & Growth Strategy Manager](https://feeny.ai/job/merchant-quality-growth-strategy-manager-coupang-tokyo-wf58pyx9qkt1) — Tokyo, Japan
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- [[쿠팡] Eats Junior PM (신입 가능)](https://feeny.ai/job/eats-junior-pm-coupang-seoul-t24y5pj9cec1) — Seoul, South Korea
- [Director, ICQA](https://feeny.ai/job/director-icqa-coupang-taipei-ar1f9smj2sm5) — Taipei, Taiwan
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- [Staff, Detection Platform Engineer](https://feeny.ai/job/staff-detection-platform-engineer-coupang-seoul-me6tbrss4ve0) — Seoul, South Korea
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