Mainframe Operator
はんようきおぺれーたー
Industry & Occupation
Classification
Summary
A job that handles operations such as job scheduling, monitoring, and troubleshooting for mainframes (general-purpose computers).
Description
Mainframe operators are responsible for the operation and management of mainframes (general-purpose computers) used in corporate core systems. They handle job scheduling and JCL setup, system log and performance monitoring, tape input/output management, backups, etc., to maintain stable operation 24/7. When failures occur, they identify the cause, restore operations quickly, and also prepare reports after recovery and implement improvements. There is high demand in fields requiring strict operations, such as financial institutions and public organizations, where accuracy and a sense of responsibility are particularly emphasized.
Future Outlook
With the progress of cloud migration and automation, traditional mainframe operations are declining, but there remains stable demand in finance and public sectors. Skills transition to automation tools and cloud operations is required.
Personality Traits
Attentive / Calm and composed / Strong sense of responsibility
Work Style
Career Path
Operator → Operations Engineer → Infrastructure System Engineer → System Operations Manager → IT Infrastructure Architect
Required Skills
JCL Operation / Mainframe OS Operation / System Monitoring / Tape Device Management
Recommended Skills
Applied Information Technology Engineer Examination / English Technical Document Reading / ITIL Foundation / Job Scheduling
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Attention to Detail & Accuracy | Small setup errors or oversights can directly lead to system failures. |
| Problem Solving | Ability to identify causes and restore operations quickly when failures occur is essential. |
| Stress Tolerance | Night shifts and emergency responses are frequent, resulting in high mental stress. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Creativity & Ideation | Primarily follows existing procedures, so creative thinking is not particularly required. |
Related Qualifications
- Fundamental Information Technology Engineer Examination
Aliases
- Mainframe Operator
Related Jobs
- Network Operator
- Server Operations Administrator
- System Operations Operator