Last updated: 2025-05-22

19 Network Engineer jobs in Tokyo.

Hiring now: Japanese Speaking Technic @ Extreme Ne, Mvno設備運用保守担当 @ 楽天モバイル, Connectivity Mgr @ Airtrunk, Network Benchmarking Anal @ Rakuten Mo, Ip Networking Qa Engr @ Mobile Net, Openstack And Kubernetes @ National C, Packet Core Architect @ Telecommun, ネットワークエンジニア @ 楽天生命保険, Network Engr @ Rakuten Mo, Sr Focal Support Engr @ Zscaler.Explore more at at kaamvaam.com

🔥 Skills

TCP/IP (4) DNS (4) troubleshooting (4) automation (3) OpenStack (3) Kubernetes (3) enterprise networks (3) cloud infrastructure (2) Linux shell scripting (2) Python programming (2)

📍 Locations

Tokyo (19)
🔍 Go to full job search

Extreme Networks, Inc.

Japanese Speaking Technical Support Engineer Tokyo
Skills & Focus: Networking, Technical Support, Customer Service, Wireless, TCP/IP, Firewall, Cisco, Troubleshooting, Knowledge Base, Virtualization
About the Company: Extreme Networks creates effortless networking experiences leveraging machine learning, artificial intelligence, analytics, and automation to deliver scalable …
Type: Fulltime

楽天モバイル

MVNO設備運用保守担当 Tokyo
Skills & Focus: MVNO, 操作, 監視チーム, テクニカルサポート, 計画メンテナンス, 設備の保守契約, 事業者間調整, 帯域申し込み, 相互接続, 英語スキル
About the Company: 当グループでは楽天モバイルと楽天コミュニケーションズのモバイルサービスに関連するコア設備の構築・運用保守
Experience: MVNO事業者の技術部門での業務経験(2-3年程度）
Type: フルタイム

Airtrunk

Connectivity Manager Tokyo
Skills & Focus: connectivity strategy, telecommunication, customer requirements, subsea Cable Landing Station, fibre database, telecom providers, connectivity solutions, customer success, site selection, remote collaboration
About the Company: AirTrunk is a technology company with a powerful purpose - to scale and sustain the relentless growth of the region’s digital future. We do this by continuousl…

Rakuten Mobile Inc.

Network Benchmarking Analysis Expert Tokyo
Skills & Focus: network analysis, benchmarking, 4G, 5G, drive tests, stakeholders, reporting, KPI, data files, performance tracking
About the Company: Rakuten Mobile Inc. is focused on enhancing the quality and performance of its networks through comprehensive analysis and benchmarking strategies.
Experience: Experience in end-to-end mobile network analysis, including 4G & 5G Radio/Core/Transport.
Type: Full-time

Mobile Network Operator (Mno)

IP Networking QA Engineer Tokyo
Skills & Focus: Cisco ACI, IP routing, network optimization, automation, network stability, feature validation, network performance, Python scripting, network testing tools, ITIL processes
About the Company: The Quality Assurance (QA) business unit of our Mobile Network Operator (MNO) is dedicated to validating products and solutions before they are implemented in …
Experience: 8-12 years of experience in IP networking and Quality Assurance

National Capacity Planning Section

OpenStack and Kubernetes FM PM Integration Expert Tokyo
Skills & Focus: OpenStack, Kubernetes, FM, PM, VNF, CNF, telecom, cloud infrastructure, Linux shell scripting, Python programming
About the Company: The National Capacity Planning Section is tasked with collecting, analyzing, optimizing, and assuring capacity for nationwide non-RF network elements. This Sec…
Experience: 8 years of experience with hands-on large-scale VNF, CNF deployment and OpenStack and Kubernetes FM, PM, OBF/Prometheus configuration and monitoring.
Type: Full-time

Telecommunications Innovation Inc.

Packet Core Architect Tokyo
Skills & Focus: Packet Core, Cloud-Native Network Functions, VNF to CNF, MME, SAEGW, UPF, DNS, Network Design, DevOps, CI/CD
About the Company: At the forefront of telecommunications innovation, our company is dedicated to advancing the infrastructure of modern connectivity. We specialize in the develo…
Experience: 8+ years in Wireless Telecom Industry, with at least 6 years in Core Network Delivery.
Salary: Competitive
Type: Full-time
Benefits: Health insurance, retirement plans, remote work opportunities, professional development resources.

楽天生命保険

ネットワークエンジニア Tokyo
Skills & Focus: ネットワークエンジニア, プロジェクトマネジメント, ネットワーク設計, ネットワーク構築, 保守業務, ルーター, スイッチ, ファイアウォール（FW）, ロードバランサー, オフィス環境の構築
About the Company: 楽天保険グループにおける中核事業の一つ。様々な保険商品を提供し、インターネットチャネルを中心に経営している。
Experience: ネットワーク案件のマネージメントの経験が2年以上、ネットワーク（ルーター, スイッチ、FW、ロードバランサー）の要件定義/設計/構築の経験が5年以上、ネットワークの保守の経験が5年以上、社内SEの経験が2年以上
Type: 正社員（Full-time）

Rakuten Mobile

Network Engineer Tokyo
Skills & Focus: F5 LTM, DNS, ASM, AFM, network switching, network routing, network equipment, cloud network functions, deployment, communication skills
About the Company: Cloud Platform Division (CPD) provides cloud platform technology for Rakuten Mobile. The Cloud Network Department (CND) specializes in networks, which are the …
Experience: 7-10 years
Type: Full-time

Zscaler

Senior Focal Support Engineer Tokyo
Skills & Focus: customer support, enterprise networks, TCP/IP, HTTP, SMTP, DNS, LDAP, FTP, Wireshark, troubleshooting
About the Company: Zscaler serves thousands of enterprise customers around the world, including 40% of Fortune 500 companies, providing cloud security solutions.
Experience: 5+ years in technical support or related area
Benefits: Health plans, vacation and sick leave, parental leave, retirement options, education reimbursement, in-office perks

Rakuten Mobile

RAN Operations Specialist Tokyo
Skills & Focus: RAN networks, radio sites, monitoring, troubleshooting, network changes, commercial base stations, work procedures, automation, English, Japanese
About the Company: RAN Operations Department working both Service Experience Center (SXC) Japan and India and responsible for operation of RAN networks. Handling 300k + radio sit…
Experience: More than 1 year experience for radio station operations
Type: Full-time

Zscaler

Staff Focal Support Engineer Tokyo
Skills & Focus: customer support, troubleshooting, enterprise networks, TCP/IP, HTTP, SMTP, DNS, LDAP, packet analysis, Wireshark
About the Company: Serving thousands of enterprise customers around the world including 40% of Fortune 500 companies, Zscaler (NASDAQ: ZS) was founded in 2007 with a mission to m…
Experience: 7+ years of experience in technical support or a related area
Benefits: Various health plans, time off, parental leave, retirement options, education reimbursement, in-office perks

Palo Alto Networks

Sr. Expertise Engineer Tokyo
Skills & Focus: cybersecurity, firewall technologies, networking, security solutions, installation, configuration, troubleshooting, Cisco certified, Palo Alto Networks products, technical authority
About the Company: Palo Alto Networks® is a cybersecurity company that aims to protect the digital way of life and provide safety and security digitally. They are built on challe…
Experience: Experience with network, security solutions, and technologies leading security solutions in large environments.
Type: Full-time
Benefits: FLEXBenefits wellbeing spending account, mental and financial health resources, personalized learning opportunities.

Rakuten Mobile

5G SA Core Architect Tokyo
Skills & Focus: 5G SA Core, network design, cloud-native network, network migration, technical lead, quality assurance, project management, DevOps, network monitoring, scripting languages
About the Company: At Rakuten Mobile, we are at the forefront of revolutionizing communication through our advanced mobile network technologies. As a leading innovator in the tel…
Experience: 8+ years of experience in the Wireless Telecom Industry, with at least 6 years in Core network Delivery.
Type: Full-time

Land Line Engineering Group

Network Engineer Tokyo
Skills & Focus: fixed network, voice services, IP networks, L2/L3, SIP, RTP protocols, UNIX, Linux CLI operations, project lead, network security
About the Company: Land Line Engineering Group is responsible for the construction, operation, and maintenance of fixed network voice services. Additionally, it also manages coor…
Experience: 5-10 years of experience in engineering work related to business fixed voice network equipment at a telecommunications carrier or equipment vendor.

National Capacity Planning Section

OpenStack and Kubernetes FM PM Integration Expert Tokyo
Skills & Focus: OpenStack, Kubernetes, FM PM, integration, monitoring, network elements, IP Transport, Datacenter networking, Linux shell scripting, Python programming
About the Company: The National Capacity Planning Section is tasked with collecting, analyzing, optimizing, and assuring capacity for nationwide non-RF network elements. This Sec…
Experience: 8 years of experience with IP Transport / Datacenter networking, Openstack and Kubernetes FM, PM, OBF / Prometheus configuration and Monitoring, Linux shell scripting.
Type: Full-time

Our Organization

PCC & Signaling Architect Tokyo
Skills & Focus: PCC & Signaling, 4G services, 5G services, Network solutions, Telecommunication standards, VoLTE design, End-to-end troubleshooting, Kubernetes, OpenStack, Policy and Charging systems
About the Company: Our organization is a dynamic leader in the telecommunications sector, renowned for pioneering advancements in network technology. We specialize in the develop…
Experience: At least 10 years of overall experience in the telecom industry, specifically with 4G & 5G services.

Rakuten Mobile

Network Solution Architect Tokyo
Skills & Focus: network design, cloud infrastructure, Kubernetes (k8s), communication protocols, TCP/IP, L2/L3 switches, routing protocols, project management, data center, mobile network
About the Company: Cloud Platform Division (CPD) provides cloud platform technology for Rakuten Mobile. Cloud Network Department (CND), part of the CPD team, specializes in netwo…
Experience: 5-7 years of experience in the infrastructure domain of the IT industry
Type: Full-time

Woven By Toyota

Technical Leader - Networking Tokyo
Skills & Focus: firewall, network expertise, engineering infrastructure, enterprise networks, cloud networks, datacenter networks, automation, speed, reliability, scalability
About the Company: Woven by Toyota, a part of the Toyota Group, is challenging the current state of mobility through human-centric innovation and empowering mobility transformati…
Experience: Deep firewall and network expertise with a background in designing, building, and operating complex global networks in a multi-vendor environment.