Enterprise Network Senior Engineer

About this role

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