System Administrator
システムかんりしゃ
Industry & Occupation
Classification
Summary
Technical role that designs, builds, operates, and maintains servers, networks, and cloud environments to support the stable operation of corporate systems.
Description
System administrators are responsible for the design, construction, operation, and maintenance of an organization's IT infrastructure (servers, networks, storage, cloud environments, etc.). They detect issues through daily monitoring tasks and log analysis, and perform rapid troubleshooting. They also conduct regular backups, apply security patches, perform performance tuning, manage capacity, and more to maintain stable system operation. In recent years, infrastructure management using cloud services, container technologies, and automation tools has increased, requiring operational skills that incorporate IaC (Infrastructure as Code) and DevOps methodologies.
Future Outlook
With the spread of cloud services and automation tools, demand will increase for system administrators skilled in cloud infrastructure management and DevOps. Expertise in security operations and SRE (Site Reliability Engineering) will also be required.
Personality Traits
Attentive / Cooperative / Motivated for continuous learning / Resilient to troubles / Strong sense of responsibility
Work Style
Flex / In-house Operations / On-call / Outsourced Operations / Project-based / Remote
Career Path
Junior System Administrator → System Administrator → Senior System Administrator → Infrastructure Engineer → DevOps Engineer → Infrastructure Architect
Required Skills
Cloud Platforms / Monitoring Tools (Zabbix/Prometheus) / Network Configuration / Scripting Languages / Server Management / Virtualization Technology
Recommended Skills
CI Pipeline Construction / Container Operations / English Document Reading / Infrastructure as Code / Security Measures (IDS/IPS/WAF)
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Analytical & Logical Thinking | Necessary for analyzing causes of failures and understanding system configurations. |
| Attention to Detail & Accuracy | Because configuration errors can lead to system downtime. |
| Learning Agility & Knowledge Acquisition | To adapt to the introduction of new technologies and tools. |
| Planning & Organization | Important for planning and coordinating maintenance and updates. |
| Problem Solving | Required to quickly identify and address causes during incidents. |
| Stress Tolerance | Due to the high pressure of emergency responses and overnight duties. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Physical Stamina & Endurance | Mainly desk work. |
Related Qualifications
- Applied Information Technology Engineer Examination
- Cisco CCNA
- Fundamental Information Technology Engineer Examination
- LPIC-1
- RHCSA
Aliases
- Infrastructure Administrator
- Network Administrator
- Server Administrator
Related Jobs
- Cloud Engineer
- DevOps Engineer
- Network Engineer
- Server Engineer
- System Engineer