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

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給与: 記載なし
勤務地: 東京都
休日: 記載なし
雇用形態: 記載なし

どんな仕事かAIによる生成

Senior Network Engineerとして、楽天グループのグローバルな社内ネットワークインフラの設計、検証、構築、運用、ユーザーサポートを担当します。国内外のインフラチームとプロジェクトに取り組み、新技術の選定や複雑なネットワークインシデントへの対応、Infrastructure-as-Codeへの移行を推進します。

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応募資格

必須

Expert level skill with minimum 6years of experiencein at least five of thefollowing products/technologies:
1.Core network routing (OSPF,BGP, VRF)
2. Data Center and branch office switching(Cisco Catalyst, Nexus, HPE)
3. Zero Trust Network(ZScaler: ZIA, ZPA, ZCC, ZDX)
4. WirelessLAN(Mist/Cisco)
5. NGFWFirewalls(Palo Alto,Fortigate, IDS/IPS, URL Filtering)
6. Public cloud networking(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 monitoringand logging (SNMP,Netflow, ADX)
12. Network automationand orchestration
Negotiation and troubleshooting experience with vendors/telecommunication carriers
Strong analytical,communication,problem solving and documentation skills
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
English :Business level (TOEIC 800 or higher) or Native

歓迎

More than 10 years ofnetworkexperience
Experience with enterprise level network with over 100 locations and 5DataCenters
Zero Trust Network deployment experience withZScaler
Depth knowledge and experience in network securities (IDS, IPS, URL Filtering, etc.)
Knowledge in Active Directory, Windows/MacOS/Linux
Project Management experience

求める人物像

Strong interest with new network technologies
Japanese :At least conversational levelis preferred

募集要項最終確認 11/12

職種: ネットワークエンジニア
雇用形態: 記載なし
役職: Senior Network EngineerMentor junior engineers, share troubleshooting/design best practices, and lead technical initiatives from conception through completion.
給与: 記載なし
勤務地: 東京都
働き方: 記載なし
経験年数: 6年以上
学歴: 大学卒業以上
掲載日: 2026/09/02 18:20（72日前）
最終確認: 2026/11/12 21:35（1日前）

仕事内容

Why We Hire

As RakutenGroupcontinues its rapid global expansion, we are modernizing our network architecture to embrace a "Cloud-First" and "Zero Trust"networkmodel. We are looking for a Senior Network Engineer tosupportthis transformation and ensure our globalcorporate networkinfrastructure 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 foroverall network infrastructure, includingZero Trustnetwork,wired/wireless LAN,Data Center and cloudnetwork, 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)

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