Coupang

Staff Solution Engineer

Coupang
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2 days ago
Singapore, SingaporeStaff+

Responsibilities

  • Perform web-side protocol analysis, parameter reverse engineering, and solution improvements.
  • Continuously iterate on device attack-and-defense capabilities.
  • Explore the construction of a fully automated adversarial system.
  • Analyze mainstream websites independently from decompilation through logical analysis.
  • Document and communicate reverse-engineering results and collaborate with the team.
  • Develop automation tools using Python or Node.js.

Requirements

  • Bachelor’s degree or above in Computer Science, Software Engineering, Information Security, or a related field.
  • At least 3 years of practical Android/iOS reverse-engineering experience.
  • Successful reverse-engineering experience with mainstream websites such as social media, ecommerce, or finance sites.
  • Strong logical analysis and problem-solving skills.
  • JavaScript reverse-engineering and AST analysis experience, preferably using Babel Parser.
  • Familiarity with JavaScript obfuscation and deobfuscation techniques.
  • Experience with Chrome DevTools and Puppeteer or Playwright; Chromium kernel modification experience is a plus.
  • Familiarity with browser and TLS fingerprinting, CAPTCHA systems, Akamai, and other anti-scraping protections.
  • Knowledge of HTTP, WebSocket, Charles, Wireshark, RSA, AES, HMAC, interface signatures, OWASP Top 10 vulnerabilities, and WAFs.
  • Information security certifications such as CEH or OSCP, or contributions to open-source reverse-engineering tools, are preferred.
  • Strong documentation and communication skills.
  • Python and Node.js development skills.

Benefits

  • Open to Singapore citizens and permanent residents only.
  • Recruitment may proceed through application review, phone interview, onsite or virtual onsite interview, and offer.
  • The posting may close early if all openings are filled.

Categories

Solutions Engineering
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).

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