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インフラエンジニア／サーバ設計・構築（LAN・WAN・インターネット）
Infrastructure engineer designing and building server/network environments — cloud and hybrid migrations, identity/authentication platforms (SSO, MFA), virtualization, office infrastructure, and monitoring/backup systems — delivered from the Shinagawa HQ or at client sites. Core stack: Azure/AWS, VMware, network gear, servers and middleware.
ネットワークエンジニア／ネットワーク設計・構築（LAN・WAN・インターネット）
Network engineer at a 50-year-old Tokyo IT solutions firm: designs and builds LAN/WAN infrastructure (L2/L3 switches, routers, firewalls, load balancers, VPN), cloud/hybrid environments on Azure/AWS, identity/SSO platforms, and monitoring/backup operations. Based at the Shinagawa HQ or client sites.
インフラエンジニア職／サーバ・マシン運用・監視
Infrastructure engineer at a Japanese SIer handling server/IT infrastructure operations and monitoring: cloud (Azure/AWS) and hybrid environments, authentication/SSO platforms, office infrastructure (file/mail servers), plus monitoring, backup, and DR. Requires 3+ years of server operations/maintenance, with a path toward design/build and lead roles.
開発エンジニア／システムエンジニア（DB・ミドルウェア設計／WEB・オープン・モバイル系）
Development/system engineer at a long-established Tokyo IT services firm, designing and building business systems (finance, public-sector, market systems) on contract-development projects, with opportunities to move into upper-process design and grow toward team leader. Core stack is web development with Java/.NET/Python plus AWS/Azure cloud work.
開発エンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Systems engineer doing full-cycle BtoB system development — requirements definition, design, implementation, testing, and maintenance — while stationed on-site at client companies (mainly a major telecom carrier). Chooses languages like Java, Python, or PHP per project, with a growth path toward PL/PM roles.
SREエンジニア／社内システム開発・運用
SRE engineer running cloud services used by Japanese local governments: monitoring system health, performance tuning, onboarding new municipalities, building optional services, and handling escalations from tech support/help desk. Stack centers on Windows/Linux servers, shell scripting, Nginx/Tomcat/Docker, Zabbix/Hinemos monitoring, PostgreSQL, and Azure/AWS.
エンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Control/embedded software engineer at a contract development firm in Kofu, Japan: handles requirements definition, design, C/C++/C# coding, reviews and testing for client projects (90% prime contracts), including work using AI, machine learning and SLAM. Hybrid client-site/remote work on Windows and Linux.
開発エンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
In-house engineer at MAX Co., an 82-year-old Japanese manufacturer (staplers, housing equipment, care products). You plan and design web/mobile apps end to end: requirements definition, basic/detailed design, backend interface work, testing, and post-release operation and maintenance. Main languages cited: Java, PHP, Python; on-site in Gunma with flextime.
インフラエンジニア／サーバ設計・構築（LAN・WAN・インターネット）
Infrastructure engineer who designs and builds Linux/Windows servers, maintains networks, strengthens security, and introduces virtualization/cloud environments (AWS, Kubernetes) for clients in telecom, finance and other industries. Tokyo-based with remote options; engineers pick projects matching their skills, with strong training and certification support.
システム開発 ／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Systems engineer at a Toyama-based IT services group building and maintaining business systems for local infrastructure and finance-sector clients. Engineers are assigned to ~12-13 person projects matched to their current skills, with a path to upstream design work; core languages are Java, C++, C#, and .NET.