Mainframe Operator
めいんふれーむおぺれーたー
Industry & Occupation
Classification
Summary
A job responsible for operating, monitoring, and managing large general-purpose computers (mainframes), supporting stable system operation through batch job submission and incident response.
Description
Mainframe operators are specialists responsible for the stable operation of large general-purpose computers used in banks, insurance companies, government agencies, and other organizations. They submit and monitor batch jobs for business systems, regularly check system logs to detect anomalies early, perform prompt log analysis, restarts, and other responses when failures occur, and carry out tasks according to operation procedure manuals. In addition, managing tape devices and input/output devices, performing backups, and conducting monitoring operations in a 24-hour system with shift work including nights and holidays are common.
Future Outlook
Mainframe systems have enduring demand in finance and public sectors, maintaining a certain level of stability since full cloud migration is not progressing easily. On the other hand, with advances in automation technologies and modernization, traditional operations operators are increasingly required to acquire skills in scripts and automation tools.
Personality Traits
Attentive / High concentration / Patient / Strong sense of responsibility
Work Style
24-hour operations / Night shifts / On-site required / Shift work
Career Path
Junior Operator → Senior Operator → System Operations Engineer → System Operations Manager → IT Infrastructure Manager
Required Skills
Batch management / Input/output device operations / JCL operations / Log analysis / Mainframe OS operations / Work based on procedure manuals
Recommended Skills
Automation tools / English document comprehension / Shell scripts
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Analytical & Logical Thinking | To analyze logs and error information to identify the cause. |
| Attention to Detail & Accuracy | Because configuration errors or input mistakes can lead to system failures. |
| Problem Solving | Because it is necessary to quickly investigate the cause and restore service when incidents occur. |
| Stress Tolerance | Due to high pressure during incident response and night shifts, etc. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Creativity & Ideation | There are many routine tasks and few opportunities for generating new ideas. |
Related Qualifications
- Applied Information Technology Engineer Examination
- Fundamental Information Technology Engineer Examination
Aliases
- Console Operator
- Mainframe System Operations Staff
- System Operator
Related Jobs
- Infrastructure Engineer
- Network Operator
- Operations Monitoring Engineer
- Server Operator