IBM z/OS
UK > Northern Ireland
The table below provides summary statistics and salary benchmarking for jobs advertised in Northern Ireland requiring zOS skills. It covers permanent 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 | 51 | - | - |
| Rank change year-on-year | - | - | - |
| Permanent jobs citing zOS | 1 | 0 | 0 |
| As % of all permanent jobs in Northern Ireland | 0.24% | - | - |
| As % of the Operating Systems category | 5.00% | - | - |
| Number of salaries quoted | 0 | 0 | 0 |
| Median annual salary (50th Percentile) | - | - | - |
| UK median annual salary | £87,500 | £50,000 | £65,066 |
| % change year-on-year | +75.00% | -23.15% | +12.32% |
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 permanent job vacancies requiring operating system skills in Northern Ireland.
| Permanent vacancies with a requirement for operating system skills | 20 | 50 | 54 |
| As % of all permanent jobs advertised in Northern Ireland | 4.83% | 10.33% | 15.79% |
| Number of salaries quoted | 15 | 27 | 47 |
| 10th Percentile | £30,750 | £33,360 | £29,250 |
| 25th Percentile | £31,875 | £51,250 | £36,250 |
| Median annual salary (50th Percentile) | £37,500 | £55,000 | £42,500 |
| Median % change year-on-year | -31.82% | +29.41% | -10.53% |
| 75th Percentile | £38,750 | £74,144 | £60,000 |
| 90th Percentile | £70,274 | £95,000 | £85,000 |
| UK median annual salary | £42,500 | £50,000 | £50,000 |
| % change year-on-year | -15.00% | - | -4.76% |
zOS
Job Vacancy Trend in Northern Ireland
Historical trend showing the proportion of permanent IT job postings citing zOS relative to all permanent IT jobs advertised in Northern Ireland.
zOS
Salary Trend in Northern Ireland
Salary distribution trend for jobs in Northern Ireland citing zOS.
zOS
Job Locations in Northern Ireland
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing zOS within the Northern Ireland region over the 6 months to 3 November 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 |
|---|---|---|---|---|---|
| County Antrim | - | 1 | - | - | |
| zOS UK |
|||||
zOS
Co-Occurring Skills & Capabilities in Northern Ireland by Category
The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category: