IBM z/OS
UK > Northern Ireland
The table below provides summary statistics and contractor rates for jobs advertised in Northern Ireland requiring zOS skills. It covers contract job vacancies from the 6 months leading up to 3 November 2025, with comparisons to the same periods in the previous two years.
| 6 months to 3 Nov 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | - | 30 | - |
| Rank change year-on-year | - | - | - |
| Contract jobs citing zOS | 0 | 2 | 0 |
| As % of all contract jobs in Northern Ireland | - | 1.04% | - |
| As % of the Operating Systems category | - | 6.25% | - |
| Number of daily rates quoted | 0 | 0 | 0 |
| Median daily rate (50th Percentile) | - | - | - |
| UK median daily rate | £450 | £483 | £575 |
| % change year-on-year | -6.74% | -16.09% | +9.52% |
All Operating Systems
Northern Ireland
zOS 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 in Northern Ireland.
| Contract vacancies with a requirement for operating system skills | 32 | 32 | 25 |
| As % of all contract IT jobs advertised in Northern Ireland | 12.85% | 16.67% | 15.63% |
| Number of daily rates quoted | 9 | 16 | 17 |
| 10th Percentile | £156 | £138 | £125 |
| 25th Percentile | £175 | £164 | £176 |
| Median daily rate (50th Percentile) | £250 | £193 | £400 |
| Median % change year-on-year | +29.87% | -51.88% | -19.96% |
| 75th Percentile | £375 | £464 | - |
| 90th Percentile | £380 | £531 | £450 |
| UK median daily rate | £450 | £475 | £488 |
| % change year-on-year | -5.26% | -2.56% | -2.99% |
| Number of hourly rates quoted | 3 | 8 | 1 |
| 10th Percentile | £16.56 | - | - |
| 25th Percentile | £18.42 | - | £16.25 |
| Median hourly rate | £23.00 | £24.18 | £17.50 |
| Median % change year-on-year | -4.88% | +38.17% | +34.62% |
| 75th Percentile | £24.50 | - | £18.75 |
| 90th Percentile | - | - | - |
| UK median hourly rate | £24.25 | £52.50 | £32.50 |
| % change year-on-year | -53.81% | +61.54% | +32.65% |
zOS
Job Vacancy Trend in Northern Ireland
Historical trend showing the proportion of contract IT job postings citing zOS relative to all contract IT jobs advertised in Northern Ireland.
