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 9 January 2026, comparing them to the same period in the previous two years.

6 months to
9 Jan 2026
Same period 2025 Same period 2024
Rank 129 160 161
Rank change year-on-year +31 +1 +90
Permanent jobs citing Mainframe 1 2 4
As % of all permanent jobs in the City of London 0.045% 0.075% 0.14%
As % of the Miscellaneous category 0.13% 0.18% 0.42%
Number of salaries quoted 0 1 4
10th Percentile - - £61,275
25th Percentile - £157,500 £67,688
Median annual salary (50th Percentile) - £165,000 £86,250
Median % change year-on-year - +91.30% -
75th Percentile - £172,500 £106,875
90th Percentile - - £110,250
Central London median annual salary - £165,000 £86,250
% change year-on-year - +91.30% -

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 requiring generic IT skills in the City of London.

Permanent vacancies with a requirement for generic IT skills 756 1,130 956
As % of all permanent jobs advertised in the City of London 33.89% 42.47% 33.97%
Number of salaries quoted 590 683 837
10th Percentile £40,000 £42,500 £39,085
25th Percentile £55,000 £55,000 £52,500
Median annual salary (50th Percentile) £75,000 £75,000 £75,000
Median % change year-on-year - - -6.25%
75th Percentile £100,000 £93,750 £97,500
90th Percentile £118,825 £115,000 £122,500
Central London median annual salary £75,000 £72,500 £75,000
% change year-on-year +3.45% -3.33% -3.23%

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 job vacancy trend 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.

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 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:

Cloud Services
1 1 (100.00%) AWS
Database & Business Intelligence
1 1 (100.00%) DB2
1 1 (100.00%) PostgreSQL
General
1 1 (100.00%) Banking
1 1 (100.00%) Finance
Job Titles
1 1 (100.00%) Programme Manager
Miscellaneous
1 1 (100.00%) Legacy Applications
1 1 (100.00%) Public Cloud
Processes & Methodologies
1 1 (100.00%) Business Case
1 1 (100.00%) Customer Experience
1 1 (100.00%) Stakeholder Management
Programming Languages
1 1 (100.00%) COBOL
1 1 (100.00%) Java