Staff Security Engineer (Penetration Tester)

Coupang; Seattle (WA); On-site; USD 152,000 - 261,000; Full time

Benefits offered by this job

Annual bonus 0-20% of base salary

FSA/HSA

Disability insurance

Employee Assistance Program

401K with company match

PTO 18-21 days

Public Holidays 12

Parental leave 6 weeks

EV charging station

Job summary

Coupang is seeking a seasoned Red Team security professional in Seattle to uncover and exploit vulnerabilities across web, mobile, API, and network environments. You will simulate threat actors and drive remediation with engineering teams.

The role emphasizes hands-on offensive security, cloud awareness, and collaboration with security stakeholders nationwide. The compensation reflects multi-market considerations and base salary ranges.

Qualifications

• 5+ years of technical work experience in offensive security.
• Proficiency on web, mobile and API testing.
• Experience with common penetration testing security tools (e.g., Burp Suite, Metasploit, Kali Linux, Nmap).
• Good understanding of OS security (e.g., Linux) and networking (TCP/IP).
• Proficiency with command-line tools and Linux.
• Confident with at least one programming language (e.g., Python, Java) in order to develop scripts and tools that could aid the testing activities.

Responsibilities

• Perform penetration testing activities on web, mobile, API and network.
• Provide remediation guidelines and improvements to the issues identified during the engagements
• Perform threat actor simulation activities (Red Team campaigns)

Skills

Penetration testing

Web testing

Mobile testing

API testing

Linux

Networking

Python/Java

Korean and English

Education

CS/CE degree

Offensive security certifications

Tools

Burp Suite

Metasploit

Kali Linux

Nmap

Job description

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we 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

We are looking for a new Red Team member in our Seattle office. The ideal candidate will be passionate around security and will love to dive deep in order to understand and exploit a potential security vulnerability. If you love finding security weaknesses and use those findings to bypass technical security controls, we would love to hear from you.

What You Will Do

• Responsibilities will include, but not be limited to, the following:
• Perform penetration testing activities on web, mobile, API and network.
• Provide remediation guidelines and improvements to the issues identified during the engagements
• Perform threat actor simulation activities (Red Team campaigns)

Basic Qualifications

• 5+ years of technical work experience in offensive security
• Proficiency on web, mobile and API testing
• Experience with common penetration testing security tools (e.g., Burp Suite, Metasploit, Kali Linux, Nmap)
• Good understanding of OS security (e.g., Linux) and networking (TCP/IP)
• Proficiency with command-line tools and Linux
• Confident with at least one programming language (e.g., Python, Java) in order to develop scripts and tools that could aid the testing activities.

Preferred Qualifications

• Work experience in the e-commerce sector is valuable.
• Experience in cloud (e.g., AWS) and understanding the differences between Cloud and traditional data-center environments.
• Understanding of Cyber Kill Chain, MITRE ATT&CK framework
• Computer Science, Computer Engineering, or related technical Degree
• Holder of well-recognized offensive security certifications (e.g., Offensive Security like OSCP, OSCE or OSED, CREST, SANS)
• Fluent in Korean and English

Our compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation.

The base pay for Staff position ranges from $152K/year to $261K/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.

General Description of All Benefits

Annual bonus is 0-20% of the base salary

Flexible Spending Accounts (FSA) & Health Savings Account (HSA)

Long-term/Short-term Disability

Employee Assistance Program (EAP) program

401K Plan with Company Match

18-21 days of the Paid Time Off (PTO) a year based on the tenure

12 Public Holidays

6 weeks Paid Parental leave

MTV - [Free] Electric Car Charging Station

General Description of Other Compensation

“Other Compensation” includes, but is not limited to, bonuses, equity, or other forms of compensation that would be offered to the hired applicant in addition to their established salary range or wage scale.

Recruitment Process and Others

Recruitment Process

Application Review - Job Fit Interview - Focus 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 (recipients of veteran’s benefits, the disabled, etc.) 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/

Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, or affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate. If you need assistance and/or reasonable accommodation in the recruiting process due to a disability, please contact us at [e-mail].