{"id":2658591,"url":"https://alion.io/job/coupang-staff-web-security-engineer","title":"Staff Web Security Engineer","company":{"id":239,"name":"Coupang","domain":"coupang.com","url":"https://alion.io/company/coupang","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":132,"ghost_share":0.061,"stale_share":0.129,"repost_share":0.098,"time_to_fill_p50_days":81,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Security","role_family":"Security","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":138000,"max":297000,"currency":"USD","period":"year","gross":null,"usd_annual":297000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"SIEM","optional":false},{"name":"AWS","optional":true},{"name":"DNS","optional":true},{"name":"JavaScript","optional":true},{"name":"OWASP Top 10","optional":true},{"name":"Python","optional":true},{"name":"Splunk","optional":true},{"name":"SQL","optional":true}],"status":"live","first_seen_at":"2026-10-15T21:36:56Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-16T07:48:16Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"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.\nWe 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.\nOur 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.\nRole Overview\nThe Detection Operations team is responsible for protecting Coupang's global attack surface across web, network, email, and endpoint security. We operate and manage a broad range of security technologies, including enterprise security appliances, endpoint protection platforms, and cloud-based SaaS security services. \nOur mission is to detect, investigate, and mitigate cyber threats before they impact the business. By combining proactive threat detection, rapid response, and in-depth root cause analysis, we help minimize security risks while continuously improving our overall security posture and preventing future incidents. \nWhy Join Detection Operations? \nAt Coupang, security operates at massive scale. As a member of the Detection Operations team, you will have the opportunity to work across multiple security domains, including: \nWeb Security \nNetwork Security \nEmail Security \nEndpoint Security \nRather than being confined to a single technology or security domain, you will gain hands-on experience with a diverse set of security solutions and services that protect one of the largest e-commerce and technology platforms in the world. \nYou will work closely with experienced security engineers and subject matter experts across multiple disciplines, providing unique opportunities to expand both your technical depth and breadth. Team members are encouraged to take ownership, drive improvements, and contribute directly to strengthening Coupang's security capabilities. \nWhat You Will Do\nDesign, deploy, and manage security controls that protect externally facing web and API services from a wide range of cyber threats using industry-leading security platforms and services.\nAnalyze and tune Web Application Firewall (WAF) detections to reduce false positives and false negatives, improve security coverage, deploy security policies, and respond to emerging vulnerabilities and CVEs.\nDetect and mitigate automated and malicious bot activity, continuously improving detection logic, policy effectiveness, and overall bot defense capabilities.\nStrengthen detection and mitigation capabilities against Distributed Denial-of-Service (DDoS) attacks through continuous monitoring, analysis, and policy optimization.\nConduct proactive web threat hunting activities to identify emerging attack patterns, strengthen detection capabilities, and improve preventive controls.\nDevelop and maintain operational procedures, documentation, and automation workflows to increase efficiency and scalability across security operations.\nAnalyze API security events and continuously improve detection, investigation, and response workflows to enhance API security posture.\nPerform large-scale analysis of SIEM, security telemetry, and web access logs to identify trends, investigate incidents, and provide actionable security insights through reports and metrics.\nPartner with engineering, infrastructure, and security teams to investigate security incidents, improve operational processes, and drive cross-functional security initiatives.\nCreate and maintain monitoring use cases, detection logic, playbooks, and response procedures to improve security visibility and response effectiveness. \nBasic Qualifications\nBachelors Degree in Computer Science or a related field\n4 years of experience in Security Engineering or Cybersecurity\nPreferred Qualifications\nProven ability to analyze security telemetry, access logs, and detection events to identify root causes, troubleshoot complex issues, and drive effective remediation.\nStrong communication and stakeholder management skills, with the ability to influence decisions, build alignment, and communicate security risks and recommendations through data-driven insights.\nBachelor's degree in Computer Science, Cybersecurity, Information Security, or a related field, or equivalent practical experience.\nHands-on experience securing large-scale web environments, including DNS, DDoS mitigation, web application attacks, bot management, vulnerability response, and security event investigations.\n10+ years of experience in Web Security, Security Operations, Threat Detection, Incident Response, or a related cybersecurity discipline.\nAbility to travel internationally as required, with no restrictions on obtaining and maintaining necessary travel documentation.\nIndustry-recognized cybersecurity certifications such as CISSP, GIAC, GSEC, GCIH, GCIA, Security+, or equivalent.\nHands-on experience with Web Security CDN, WAF, Bot Management, or DDoS protection platforms in production environments.\nExperience analyzing large datasets using SQL and security analytics platforms such as SIEM solutions, AWS Athena, Splunk, Elastic, or similar technologies.\nProficiency in one or more programming or scripting languages such as Python, JavaScript, Go, or Bash for automation and security engineering.\nExperience investigating and responding to web security incidents within large-scale e-commerce, technology, or internet-facing environments.\nStrong understanding of web application security principles, common attack techniques, and industry frameworks such as OWASP Top 10 and MITRE ATT&CK.\nExperience developing security automation, operational workflows, detection logic, playbooks, or response procedures.\nExcellent written and verbal communication skills with the ability to effectively collaborate across engineering, infrastructure, product, and security teams.\nKorean language proficiency is a plus but not required. \nPay & Benefits\nOur compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation.\nThe base pay for this position ranges from $138,000/year to $297,000/year. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills and experience.\nGeneral Description of All Benefits\nAnnual bonus is 0-20% of the base salary\nMedical/Dental/Vision/Life, AD&D insurance\nFlexible Spending Accounts (FSA) & Health Savings Account (HAS)\nLong-term/Short-term Disability\nEmployee Assistance Program (EAP) program\n401K Plan with Company Match\n18-21 days of Paid Time Off (PTO) a year based on the tenure\n12 Paid Holidays\nPaid Parental leave\nPre-tax commuter benefits\nMTV- [Free] Electric Car Charging Station\nGeneral Description of Other Compensation\n“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 or wage scale.\nRecruitment Process and Others\nRecruitment Process\nApplication Review - Job Fit Interview - Focus Interview - Offer\nThe exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.\nInterview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.\nDetails to Consider\nThis job posting may be closed prior to the stated end date for application if all openings are filled.\nCoupang 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.\nCoupang does not discriminate against disabled applicants or those with veteran status. We are proud to offer equal opportunities for all applicants.\nPrivacy Notice\nYour personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/\nCoupang 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 .\nJob Requisition ID : R0079421","description_format":"text","description_chars":9573,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["401k plan","Equity","Parental leave"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Delivery","Marketplaces","Security Operations"],"lifecycle":[{"event":"open","at":"2026-10-15T23:45:46Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":81,"reasons":["conf:2","velocity","win:early","comp:brand"],"computed_at":"2026-10-16T05:45:00Z"},"pay":{"stated_usd_annual":297000,"is_top_pay":true},"html_url":"https://alion.io/job/coupang-staff-web-security-engineer","json_url":"https://alion.io/job/coupang-staff-web-security-engineer.json","meta":{"generated_at":"2026-10-16T10:08:34Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":75,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":239},"rest":"https://alion.io/mcp/rest/get_company?id=239"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcoupang-staff-web-security-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fcoupang-staff-web-security-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fcoupang-staff-web-security-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/coupang-staff-web-security-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcoupang-staff-web-security-engineer"}]}