Mainframe Job Trends in the City of London
Mainframes
Central London > City of London
The table below looks at the prevalence of the term Mainframe in permanent job vacancies in the City of London. Included is a benchmarking guide to the salaries offered in vacancies that cited Mainframe over the 6 months leading up to 3 November 2026, comparing them to the same period in the previous two years.
| 6 months to 3 Nov 2026 |
Same period 2025 | Same period 2024 | |
|---|---|---|---|
| Rank | 121 | 126 | 166 |
| Rank change year-on-year | +5 | +40 | +2 |
| Permanent jobs citing Mainframe | 1 | 1 | 2 |
| As % of all permanent jobs in the City of London | 0.044% | 0.063% | 0.073% |
| As % of the Miscellaneous category | 0.14% | 0.14% | 0.18% |
| Number of salaries quoted | 1 | 0 | 1 |
| 10th Percentile | - | - | - |
| 25th Percentile | £87,500 | - | £157,500 |
| Median annual salary (50th Percentile) | £90,000 | - | £165,000 |
| Median % change year-on-year | - | - | +106.25% |
| 75th Percentile | £92,500 | - | £172,500 |
| 90th Percentile | - | - | - |
| Central London median annual salary | £90,000 | - | £165,000 |
| % change year-on-year | - | - | +106.25% |
All Generic Skills
City of London
Mainframe falls under the General and Transferable Skills category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies citing generic IT skills in the City of London.
| 6 months to 3 Nov 2026 |
Same period 2025 | Same period 2024 | |
|---|---|---|---|
| Permanent vacancies citing generic IT skills | 708 | 696 | 1,116 |
| As % of all permanent jobs advertised in the City of London | 31.22% | 43.80% | 40.69% |
| Number of salaries quoted | 462 | 566 | 666 |
| 10th Percentile | £46,000 | £40,000 | £46,000 |
| 25th Percentile | £62,500 | £55,000 | £55,000 |
| Median annual salary (50th Percentile) | £85,000 | £75,000 | £75,000 |
| Median % change year-on-year | +13.33% | - | - |
| 75th Percentile | £100,000 | £104,688 | £93,750 |
| 90th Percentile | £124,750 | £130,000 | £118,750 |
| Central London median annual salary | £80,000 | £75,000 | £75,000 |
| % change year-on-year | +6.67% | - | - |
Mainframe Job Vacancy Trend in the City of London
Historical trend showing the proportion of permanent IT job postings citing Mainframe relative to all permanent IT jobs advertised in the City of London.
Mainframe Salary Trend in the City of London
Salary distribution trend for jobs in the City of London citing Mainframe.
Mainframe Co-Occurring Skills & Capabilities in the City of London by Category
The table below expands on the one above by listing co-occurrences one category at a time. It covers the same employment type, locality and period, with up to 20 co-occurrences in each category.
Miscellaneous
| Rank | Skill | Share | Job Ads |
|---|---|---|---|
| 1 | Cloud Native | 100.0% | 1 |
| 1 | Data Centre | 100.0% | 1 |
| 1 | Replication | 100.0% | 1 |