Period
to 18 November 2017

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for zOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited zOS over the 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

IBM z/OS
Central London > City of London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 329 352 413
Rank change year-on-year +23 +61 +59
Permanent jobs citing zOS 1 2 8
As % of all permanent IT jobs advertised in the City of London 0.010% 0.017% 0.046%
As % of the Operating Systems category 0.042% 0.068% 0.18%
Number of salaries quoted 1 2 1
City of London median annual salary £47,500 £67,500 £46,000
Median salary % change year-on-year -29.63% +46.74% -20.00%
10th Percentile £46,250 £60,750 £45,500
90th Percentile £48,750 £72,250 £46,500
Central London median annual salary £47,500 £67,500 £46,000
% change year-on-year -29.63% +46.74% -20.00%

zOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for operating system skills.

All Operating Systems
City of London
Permanent vacancies with a requirement for operating system skills 2354 2939 4397
As % of all permanent IT jobs advertised in the City of London 23.14% 25.12% 25.43%
Number of salaries quoted 2132 2658 3810
City of London median annual salary £55,000 £55,000 £52,500
Median salary % change year-on-year - +4.76% +5.00%
10th Percentile £30,750 £31,000 £28,500
90th Percentile £86,250 £90,000 £82,500
Central London median annual salary £55,000 £55,000 £52,500
% change year-on-year - +4.76% +5.00%

zOS
Job Vacancy Trend in the City of London

Job postings citing zOS as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for zOS in the City of London

zOS
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing zOS in the City of London.

Salary trend for zOS in the City of London

For the 6 months to 18 November 2017, IT jobs citing zOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for zOS.

1 1 (100.00%) Oracle
1 1 (100.00%) SQL Server
1 1 (100.00%) DB2
1 1 (100.00%) Windows
1 1 (100.00%) Linux
1 1 (100.00%) CICS
1 1 (100.00%) Control-M

zOS
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1 (100.00%) CICS
Database & Business Intelligence
1 1 (100.00%) DB2
1 1 (100.00%) SQL Server
Job Titles
1 1 (100.00%) Administrator
1 1 (100.00%) DBA
Operating Systems
1 1 (100.00%) Linux
1 1 (100.00%) Windows
Systems Management
1 1 (100.00%) Control-M
Vendors
1 1 (100.00%) Oracle