IBM z/OS
East of England > Hertfordshire
The table below provides summary statistics and contractor rates for jobs advertised in Hertfordshire requiring zOS skills. It covers contract job vacancies from the 6 months leading up to 20 November 2025, with comparisons to the same periods in the previous two years.
| 6 months to 20 Nov 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 61 | - | - |
| Rank change year-on-year | - | - | - |
| Contract jobs citing zOS | 1 | 0 | 0 |
| As % of all contract jobs in Hertfordshire | 0.17% | - | - |
| As % of the Operating Systems category | 0.96% | - | - |
| Number of daily rates quoted | 0 | 0 | 0 |
| Median daily rate (50th Percentile) | - | - | - |
| East of England median daily rate | - | - | - |
All Operating Systems
Hertfordshire
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 Hertfordshire.
| Contract vacancies with a requirement for operating system skills | 104 | 112 | 169 |
| As % of all contract IT jobs advertised in Hertfordshire | 17.90% | 24.56% | 22.53% |
| Number of daily rates quoted | 44 | 44 | 128 |
| 10th Percentile | £165 | £280 | £250 |
| 25th Percentile | £263 | £399 | £400 |
| Median daily rate (50th Percentile) | £465 | £513 | £500 |
| Median % change year-on-year | -9.37% | +2.50% | - |
| 75th Percentile | £547 | £575 | £675 |
| 90th Percentile | £575 | - | £741 |
| East of England median daily rate | £275 | £415 | £450 |
| % change year-on-year | -33.73% | -7.78% | +29.03% |
| Number of hourly rates quoted | 43 | 18 | 12 |
| 10th Percentile | £41.25 | £60.13 | £24.75 |
| 25th Percentile | £63.38 | £63.13 | £47.50 |
| Median hourly rate | £65.00 | £65.00 | £70.00 |
| Median % change year-on-year | - | -7.14% | +7.69% |
| 75th Percentile | £67.00 | - | £73.75 |
| 90th Percentile | - | £67.50 | - |
| East of England median hourly rate | £42.50 | £65.00 | £25.00 |
| % change year-on-year | -34.62% | +160.00% | -3.38% |
zOS
Job Vacancy Trend in Hertfordshire
Historical trend showing the proportion of contract IT job postings citing zOS relative to all contract IT jobs advertised in Hertfordshire.
zOS
Daily Rate Trend in Hertfordshire
Contractor daily rate distribution trend for jobs in Hertfordshire citing zOS.
zOS
Contract Job Locations in Hertfordshire
The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing zOS within the Hertfordshire region over the 6 months to 20 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 Contract IT Job Ads |
Median Daily Rate Past 6 Months |
Median Daily Rate % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| Welwyn Garden City | - | 1 | - | - | |
| zOS East of England |
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zOS
Co-Occurring Skills & Capabilities in Hertfordshire 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:
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