IBM OS/400 (OS400)
UK
The table below provides summary statistics for permanent job vacancies requiring OS/400 skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited OS/400 over the 6 months leading up to 30 May 2025, comparing them to the same period in the previous two years.
| 6 months to 30 May 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 708 | - | - |
| Rank change year-on-year | - | - | - |
| Permanent jobs citing OS/400 | 1 | 0 | 0 |
| As % of all permanent jobs advertised in the UK | 0.002% | - | - |
| As % of the Operating Systems category | 0.014% | - | - |
| Number of salaries quoted | 0 | 0 | 0 |
| Median annual salary (50th Percentile) | - | - | - |
| UK excluding London median annual salary | - | - | - |
All Operating Systems
UK
OS/400 falls under the Operating Systems category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring operating system skills.
| Permanent vacancies with a requirement for operating system skills | 7,121 | 14,027 | 15,670 |
| As % of all permanent jobs advertised in the UK | 12.85% | 13.58% | 16.13% |
| Number of salaries quoted | 4,204 | 10,693 | 10,460 |
| 10th Percentile | £27,250 | £26,000 | £27,000 |
| 25th Percentile | £32,500 | £31,250 | £35,000 |
| Median annual salary (50th Percentile) | £45,000 | £45,000 | £52,500 |
| Median % change year-on-year | - | -14.29% | - |
| 75th Percentile | £66,250 | £62,500 | £71,250 |
| 90th Percentile | £82,500 | £80,000 | £92,000 |
| UK excluding London median annual salary | £40,000 | £42,500 | £45,000 |
| % change year-on-year | -5.88% | -5.56% | - |
OS/400
Job Vacancy Trend
Job postings citing OS/400 as a proportion of all IT jobs advertised.
OS/400
Salary Trend
3-month moving average salary quoted in jobs citing OS/400.
OS/400
Top 4 Job Locations
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing OS/400 within the UK over the 6 months to 30 May 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.
| Location | Rank Change on Same Period Last Year |
Matching Permanent IT Job Ads |
Median Salary Past 6 Months |
Median Salary % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| Yorkshire | - | 1 | - | - | |
| England | - | 1 | - | - | |
| UK excluding London | - | 1 | - | - | |
| North of England | - | 1 | - | - |
OS/400
Co-occurring Skills and Capabilities by Category
The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:
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