Enterprise Network Engineer at Mercari

Setup: Hybrid
Location: Tokyo
Type: Full-time
Posted: Mar 24, 2026

Description

Mercari is seeking an Enterprise Network Engineer to design, build, operate, and continuously improve site networks and surrounding systems. This role involves managing network services like DHCP, DNS, RADIUS, and network management systems, utilizing GitHub for configuration management and promoting operational automation through GitOps. The engineer will also investigate and adopt AI technologies for operations, working in a multi-vendor environment with Cisco and Juniper products.

Required Skills

Shell Scripting
Go
Python
CCNP Enterprise
Public Cloud
Troubleshooting
GitHub
Terraform
Ansible
CI/CD
Prometheus
Mimir
Fluentd
Grafana
PagerDuty
Notion
Slack
Google Workspace

Additional Information

Required Previous Experiences: Basic knowledge of shell scripting, Go, and Python.
Network knowledge equivalent to CCNP Enterprise.
3+ years of experience in network design, build, and operation (including on-call).
3+ years of experience using Public Cloud (Azure, AWS, or GCP).
Experience troubleshooting and solving technical problems related to systems.
Preferred Qualifications: Experience handling traffic of 10 Gbps or more.
Experience designing, building, and operating special networks such as stadiums, stations, halls, hotels, warehouses, etc.
Experience developing operational tools or business web applications to manage Cisco IOS or Juniper Networks Junos OS.
Basic knowledge of authentication, authorization, and directory services.
Experience contributing to open-source code or maintaining it.

About Mercari

Mercari

Discover deals on everything from secondhand fashion to pre-owned collectibles, electronics, books & more on Mercari. Your go-to marketplace for hassle-free selling and deals.