IBM OS/390 (OS390)
UK
The table below provides summary statistics for contract job vacancies requiring OS/390 skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited OS/390 over the 6 months leading up to 12 May 2025, comparing them to the same period in the previous two years.
6 months to 12 May 2025 |
Same period 2024 | Same period 2023 | |
---|---|---|---|
Rank | - | 589 | 696 |
Rank change year-on-year | - | +107 | - |
Contract jobs citing OS/390 | 0 | 1 | 3 |
As % of all contract jobs advertised in the UK | - | 0.002% | 0.005% |
As % of the Operating Systems category | - | 0.017% | 0.032% |
Number of daily rates quoted | 0 | 0 | 0 |
Median daily rate (50th Percentile) | - | - | - |
UK excluding London median daily rate | - | - | - |
All Operating Systems
UK
OS/390 falls under the Operating Systems category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring operating system skills.
Contract vacancies with a requirement for operating system skills | 4,080 | 5,733 | 9,408 |
As % of all contract IT jobs advertised in the UK | 13.95% | 13.33% | 16.27% |
Number of daily rates quoted | 2,681 | 3,878 | 6,587 |
10th Percentile | £200 | £185 | £190 |
25th Percentile | £313 | £300 | £338 |
Median daily rate (50th Percentile) | £475 | £468 | £505 |
Median % change year-on-year | +1.60% | -7.43% | +1.00% |
75th Percentile | £588 | £588 | £638 |
90th Percentile | £690 | £700 | £719 |
UK excluding London median daily rate | £450 | £450 | £475 |
% change year-on-year | - | -5.26% | +11.76% |
Number of hourly rates quoted | 181 | 392 | 419 |
10th Percentile | £15.33 | £12.75 | £13.99 |
25th Percentile | £17.79 | £15.44 | £17.74 |
Median hourly rate | £23.00 | £22.00 | £38.50 |
Median % change year-on-year | +4.55% | -42.86% | +67.39% |
75th Percentile | £58.75 | £60.75 | £64.50 |
90th Percentile | £68.00 | £70.00 | £75.00 |
UK excluding London median hourly rate | £22.00 | £22.50 | £29.30 |
% change year-on-year | -2.22% | -23.21% | +46.50% |
OS/390
Job Vacancy Trend
Job postings citing OS/390 as a proportion of all IT jobs advertised.

OS/390
Contractor Daily Rate Trend
3-month moving average daily rate quoted in jobs citing OS/390.
OS/390
Contractor Hourly Rate Trend
3-month moving average hourly rates quoted in jobs citing OS/390.