Senior Network Engineer - Core Technologies Section, Corporate IT Infrastructure Department (CITID)

Job Description

Business Overview

The Technology Management Division (TMD) provides Corporate IT, and Cyber
Security & Privacy Governance to Rakuten Group companies and essential business management for technology organizations, thereby enabling innovation and strengthening the technology foundation. Within TMD, the Corporate IT Supervisory Department (CITD) drives Rakuten Group’s global corporate IT services and infrastructure. Our mission is to empower Rakuten through innovative and secure IT solutions that enhance efficiency and foster productivity.

Department Overview
The Corporate IT Infrastructure Department (CITID) provides the stable and reliable technological foundation that supports Rakuten's global business operations. We deliver simple, secure, and robust infrastructure services with operational and engineering excellence, managing core infrastructure, enterprise collaboration platforms, development support tools and project management.

Position:

Why We Hire

As Rakuten   Group   continues its rapid global expansion, we are modernizing our network architecture to embrace a "Cloud-First" and "Zero Trust"   network   model. We are looking for a Senior Network Engineer to   support   this transformation and ensure our global   corporate network   infrastructure remains agile, secure and highly available.

Position Details
You'll join a global team and will have a lot of chances to work for global projects as well as domestic projects.
Your responsibilities will include:
・Design, verification, construction, operation and user support for   overall network infrastructure, including   Zero Trust   network ,   wired/wireless LAN,   Data Center and cloud   network, WAN, remote access, authentication, firewall and load balancer.
・Propose and engage in selection process for new technology/product/design .
・Work for various projects with domestic or global infrastructure team .
・Mentor junior engineers, share troubleshooting/design best practices, and lead technical initiatives from conception through completion.
・Develop and maintain network architecture documentation, standards, best practices, configurations, procedures and diagrams.
・Act as the SME for complex network incidents   :   perform root cause analysis, implement fixes and proactively address performance bottlenecks and capacity constraints.
・Drive the transition from manual configuration to Infrastructure-as-Code ( IaC )

Mandatory Qualifications:

・Expert level skill with minimum 6   years of experience   in at least five of the   following products/technologies:
1.Core network r outing (OSPF,   BGP , VRF )

2. Data Center and branch office s witching   (Cisco Catalyst, Nexus, HPE)
3. Zero Trust Network   ( ZScaler   : ZIA, ZPA, ZCC, ZDX)

4. Wireless   LAN   (Mist /Cisco )
5. NGFW   Firewalls   (Palo Alto,   Fortigate , IDS/IPS, URL Filtering)
6. Public cloud network ing   ( AWS,   Azure , GCP )
7. SDWAN   ( EdgeConnect , Fortinet, etc.)
8. Site-to-Site VPN (IPsec, DMVPN)
9. Network Authentication (Cisco ISE, 802.1x , RADIUS, TACACS+ )

10. AIOps
11. Network monitoring   and logging (SNMP,   Netflow , ADX)
12. Network a utomation   and orchestration

・ Negotiation and troubleshooting experience with vendors/telecommunication carriers
・Strong analytical,   communication,   problem solving and documentation skills
・Strong interest with new network technologies
・ Bachelor's Degree in Computer Science/Computer Engineering
・ Professional level of certification from vendors (Cisco,   ZScaler , Juniper,   PaloAlto , Fortinet, HPE)
・ Strong stakeholder management skills and communication skills

Desired Qualifications:
・More than 10 years of   network   experience
・Experience with enterprise level network with over 100 locations and 5   D ata   C enters
・Zero Trust Network deployment experience with   ZScaler
・Depth knowledge and experience in network securities (IDS, IPS, URL Filtering, etc.)
・Knowledge in Active Directory, Windows/MacOS/Linux
・Project Management experience

Other Information:

Additional information on English Qualification
English :   Business level (TOEIC 800 or higher) or Native
Japanese :   At least conversational level   is preferred

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#infrastructureengineer
#technologymanagementdiv