Last updated: 2025-06-20

16 It Systems Administration jobs in Tokyo.

Hiring now: Technical Leader Networking @ Woven By T, サーバエンジニア @ 楽天生命, Digitalization Project Support @ Continenta, System Administrator Entry To Sr Level @ Actionet, It System Administrator @ Mujin, Infrastructure Engineer @ Capstone I, Cloud Technical Support Engineer @ Splunk, Technical Support Engineer @ Netapp, Network Engineer @ Rakuten Mo, Sr Engineer @ Rakuten. Explore more at at jobswithgpt.com

🔥 Skills

automation (3) Windows Server (3) infrastructure (3) Python (3) Troubleshooting (3) Linux (3) project management (3) Active Directory (3) reliability (2) Active Secret Clearance (2)

📍 Locations

Tokyo (12) Yokota (2) Yokohama (1)
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Woven by Toyota

Woven by Toyota, a part of the Toyota Group, is challenging the current state of mobility through human-centric innovation and empowering mobility transformati…

Technical Leader - Networking

Tokyo

  • Skills: firewall, network expertise, engineering infrastructure, enterprise networks, cloud networks, datacenter networks, automation, speed, reliability, scalability
  • Experience: Deep firewall and network expertise with a background in designing, building, and operating complex global networks in a multi-vendor environment.

楽天生命

楽天グループは67以上の多様なサービスを提供しており、保険グループは生命保険、損害保険、少額短期保険をその中で提供している。現在成長中の事業で、サーバの設計・構築・保守を行う。

サーバエンジニア

Tokyo

  • Skills: サーバ, 設計, 構築, 保守, Windows Server, Linux Server, ミドルウェア, プロジェクトマネジメント, 仮想化環境, コミュニケーション力
  • Experience: Windows Serverの要件定義/設計/構築の経験が2年以上、ミドルウェアの設計/構築の経験が3年以上、Linux Serverの設計/構築経験が1年以上、社内SEの経験が2年以上
  • Type: Full-time

Continental

Digitalization Project Support

Yokohama

  • Skills: digitalization, industry 4.0, OPC, NodeRED, SAP Pco, production management, smart factory, cyber security, Windows server management, Linux server management
  • Experience: Enough experiences in Windows and Linux server management

ActioNet, Inc.

ActioNet is a CMMI-DEV Level 4, CMMI-SVC Level 4, ISO 20000, ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong qualifications a…

System Administrator (Entry to Senior Level)

Yokota

  • Skills: System Administrator, Active Secret Clearance, Defense Program, Software Installs, System Upgrades, Data Integrity, System Backups, Recovery, User Support, Cyber Security
  • Experience: 12 months for Entry Level, 2-6 years for Mid Level, 10+ years for Senior Level

Mujin

Mujin develops 'MujinController,' a platform that leverages a real-time digital twin and advanced robotics to seamlessly connect industrial equipment for fully…

IT System Administrator

Tokyo

  • Skills: IT System Administrator, DevOps, cloud-based services, infrastructure, scaling, securing, designing, deploying, maintenance, reliability

Capstone Investment Advisors

A global, alternative investment management firm operating across a broad range of derivatives-based strategies.

Infrastructure Engineer

Tokyo

  • Skills: technology, infrastructure, security, cloud, automation, networking, virtualization, backup, disaster recovery, monitoring
  • Experience: 7 or more years in the financial sector, with related technical skills

Splunk

Splunk is building a safer and more resilient digital world with an end-to-end full stack platform made for a hybrid, multi-cloud world. Leading enterprises us…

Cloud Technical Support Engineer

Tokyo

  • Skills: Cloud Technical Support, UNIX, Windows, Mac OS X, Python, Technical Direction, Troubleshooting, Networking, Bug Reporting, Business Intelligence
  • Type: full_time

NetApp

NetApp is the intelligent data infrastructure company, turning a world of disruption into opportunity for every customer. No matter the data type, workload or …

Technical Support Engineer

Tokyo

  • Skills: Technical Support, Troubleshooting, Customer Support, Data Center, NetApp Products, FAS/AFF, Storage Solutions, Hybrid Cloud, Problem-Solving, Performance Analysis
  • Type: full_time

Splunk

Splunk, a Cisco company, is building a safer and more resilient digital world with an end-to-end full stack platform made for a hybrid, multi-cloud world. Lead…

Cloud Technical Support Engineer

Tokyo

  • Skills: Technical Support, Splunk Product, Cloud, Troubleshooting, Networking, Python Scripting, Regular Expressions, Enterprise Software, Customer Support, Business Intelligence
  • Type: full_time

Rakuten Mobile

Rakuten Mobile is a part of the Rakuten Group, focusing on providing reliable communication services and network solutions to enterprise customers.

Network Engineer

Tokyo

  • Skills: network infrastructure, telecommunications, Linux, Unix, routers, switches, firewalls, troubleshooting, DNS servers, Radius servers
  • Type: full_time

Rakuten Group

Rakuten Group is based in Japan and serves approximately 100 million customers, with a global reach of 1 billion. We provide over 70 services across various fi…

Senior Engineer

Tokyo

  • Skills: Linux, project management, web system development, Bash, Python, authentication systems, Windows Server, Active Directory, containers, performance tuning
  • Type: full_time

Rakuten

Rakuten Group provides internet services and financial technology, and operates in diverse sectors including e-commerce and telecommunications.

Infrastructure Engineer

Tokyo

  • Skills: BSS systems, infrastructure, server design, operation management, telecommunications, Linux, project management, networking, VMware, AP framework
  • Type: full_time

PSI

PSI is a leading Contract Research Organization (CRO) with 30 years of experience in the pharmaceutical industry. Originating from Switzerland, PSI is a privat…

IT Infrastructure Systems Role

Tokyo

  • Skills: IT infrastructure, Cloud solutions, Cisco, Microsoft Exchange, Active Directory, LAN/WAN, TCP/IP, Linux administration, Veeam Backup, Virtualization
  • Type: full_time