Coupang

Staff Web Security Engineer

Coupang
Apply
4 days ago

Base Salary

$138k - $297k/yr

Responsibilities

  • Design, deploy, and manage security controls for externally facing web and API services.
  • Analyze and tune WAF detections, deploy security policies, reduce false positives and negatives, and respond to emerging vulnerabilities and CVEs.
  • Detect and mitigate malicious bot activity and improve bot defense capabilities.
  • Monitor, analyze, and optimize controls against DDoS attacks.
  • Conduct proactive web threat hunting and improve preventive controls.
  • Develop operational procedures, documentation, automation workflows, detection logic, playbooks, and response procedures.
  • Analyze API security events and improve investigation and response workflows.
  • Perform large-scale analysis of SIEM data, security telemetry, and web access logs to investigate incidents and produce security insights.
  • Partner with engineering, infrastructure, and security teams on incident investigations and cross-functional security initiatives.

Requirements

  • Bachelor’s degree in Computer Science or a related field, or equivalent practical experience.
  • At least 4 years of experience in security engineering or cybersecurity.
  • Experience analyzing security telemetry, access logs, and detection events and driving remediation.
  • Hands-on experience securing large-scale web environments, including DNS, DDoS mitigation, web application attacks, bot management, vulnerability response, and security investigations.
  • Experience with Web Security CDN, WAF, Bot Management, or DDoS protection platforms in production.
  • Experience analyzing large datasets with SQL and security analytics platforms such as SIEM solutions, AWS Athena, Splunk, or Elastic.
  • Programming or scripting experience with one or more languages such as Python, JavaScript, Go, or Bash.
  • Experience investigating and responding to web security incidents in large-scale e-commerce, technology, or internet-facing environments.
  • Understanding of web application security principles, common attack techniques, OWASP Top 10, and MITRE ATT&CK.
  • Experience developing security automation, operational workflows, detection logic, playbooks, or response procedures.
  • Strong communication, stakeholder management, collaboration, and data-driven security communication skills.
  • Cybersecurity certifications such as CISSP, GIAC, GSEC, GCIH, GCIA, Security+, or equivalent are preferred.
  • International travel capability and Korean language proficiency are preferred or advantageous.

Benefits

  • Medical, dental, vision, life, AD&D, disability, FSA, HSA, and EAP benefits.
  • 401(k) plan with company match.
  • Paid time off, paid holidays, and paid parental leave.
  • Pre-tax commuter benefits and free electric car charging station access.
  • Annual bonus and other compensation may be available in addition to base salary.

Tech Stack

Categories

Coupang

About Coupang

5,001-10,000 employees

Coupang builds and operates a South Korea–focused e-commerce marketplace with an end-to-end logistics network (Rocket Delivery), plus food delivery, video streaming, and fintech under brands such as Coupang, Eats, and Play. Revenue comes from first-party retail, third-party marketplace services, advertising, and memberships (Rocket WOW). Founded in 2010, the company is headquartered in Seattle and is publicly listed on the NYSE (CPNG).

Contact me