Enterprise Network Senior Engineer

Company Introduction About Rocket Now Rocket Now is a food delivery service with no delivery or service fees. Consumers can enjoy a wide variety of cuisines, from Japanese and Western food to healthy options, as well as desserts and drinks, quickly and affordably. The service is currently available mainly in Hokkaido, Tohoku (Sendai), Kanto (Tokyo, Kanagawa, Saitama, Chiba), Chubu (Aichi, Shizuoka), Kansai (Osaka, Kyoto, Hyogo), Hiroshima, and Kyushu (Fukuoka). Rocket Now won the Excellence Award in the Shopping Category at the Best App Awards 2025. Furthermore, it has achieved the No. 1 ranking in the Food Delivery App category for nine consecutive months on both the iOS and Android app stores (*1), and the app continues to grow, surpassing 5 million downloads in just 15 months since its launch (*2). *1 Based on integrated iOS and Android data from July 2025 to March 2026. *2 As of January 14, 2025, service release date (Source: Global Market Intelligence: Sensor Tower) About CP One Japan CP One Japan LLC is the Japanese subsidiary of Coupang, Inc. (NYSE: CPNG), a US-based company listed on the NYSE (New York Stock Exchange) and one of the Fortune 150 companies, known as a technology company. CP One Japan operates the "Rocket Now" brand food delivery service in Japan, leveraging Coupang's technological capabilities and innovative logistics solutions to provide fast, reliable, and customer-oriented food delivery services to Japanese consumers. Role Overview We are seeking a Senior Network Engineer to design, implement, and manage corporate office network infrastructure supporting Coupang’s global operations. This role is responsible for ensuring high availability, security, and scalability of network environments while collaborating closely with Security, IT Infrastructure, and End-User Technology teams. The position involves network deployment, operations support, performance optimization, and advanced troubleshooting to maintain a reliable and efficient network experience across all corporate locations. What You Will Do Key Responsibilities Design, deploy, and support scalable and resilient network infrastructure for corporate offices Implement and manage enterprise Wi‑Fi solutions to ensure optimal user experience Manage and support WAN, SD-WAN, LAN, and network interconnectivity for seamless connectivity Proactively monitor network health and identify, troubleshoot, and resolve performance issues Provide support for site-level network incidents and user-impacting issues Generate periodic operational and performance reports Manage incident, change, and capacity planning processes Support office expansions, relocations, and infrastructure upgrades Collaborate with Infrastructure, End-User Technology, and Unified Communications teams Ensure high availability, reliability, and performance of site networks Basic Qualifications Bachelor’s degree in Computer Science, Information Technology, or a related field Relevant certifications such as CCNP, PCNSA, or equivalent 5+ years of hands-on experience in enterprise network engineering and support Strong understanding of routing and switching concepts Hands-on experience with Cisco Wi-Fi, routing, switching, and ISE Working knowledge of Palo Alto firewalls Solid understanding of network security principles, including firewalls, VPNs, and access control Strong network troubleshooting and problem-solving skills Business level communication in both Japanese and English Preferred Qualifications Experience working in multinational corporate environments Ability to operate effectively in high-paced, cross-cultural settings Excellent communication, collaboration, and stakeholder management skills 採用プロセス 書類選考 → 電話／Zoom面接 → オンサイト（またはオンライン）面接 → 内定 ※職種や状況により、プロセスが変更される場合があります。 ※面接日程や結果は、応募時にご提出いただいたメールアドレス宛にご連絡いたします。 勤務条件 雇用形態：正社員 試用期間：あり（期間・条件は別途通知） その他の詳細：ご応募後、別途ご案内いたします。 留意事項 本求人は、募集枠が充足された場合、掲載終了日より前に募集を終了する可能性があります。 応募プロセスにおいて虚偽の情報が提出された場合、Coupangは採用内定を取り消す権利を有します。 法令に基づき、雇用保護の対象となる方（例：退役軍