Period
to 24 September 2018

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 24 September 2018 with a comparison to the same period in the previous 2 years.

IBM z/OS
Central London > City of London
6 months to
24 Sep 2018
Same period 2017 Same period 2016
Rank 353 323 -
Rank change year-on-year -30 - +421
Permanent jobs citing zOS 1 3 0
As % of all permanent IT jobs advertised in the City of London 0.009% 0.030% -
As % of the Operating Systems category 0.042% 0.12% -
Number of salaries quoted 1 2 0
City of London median annual salary £72,500 £50,000 -
Median salary % change year-on-year +45.00% - -
Central London median annual salary £72,500 £50,000 -
% change year-on-year +45.00% - -

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 2,396 2,479 3,158
As % of all permanent IT jobs advertised in the City of London 21.77% 24.62% 25.70%
Number of salaries quoted 2,137 2,232 2,873
City of London median annual salary £60,000 £55,000 £55,000
Median salary % change year-on-year +9.09% - +4.76%
10th Percentile £29,000 £30,750 £31,000
90th Percentile £90,000 £86,250 £83,750
Central London median annual salary £60,000 £52,500 £55,000
% change year-on-year +14.29% -4.55% +10.00%

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 24 September 2018, IT jobs citing zOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for zOS.

1 1 (100.00%) SQL
1 1 (100.00%) Oracle
1 1 (100.00%) DB2
1 1 (100.00%) ITIL
1 1 (100.00%) Unix
1 1 (100.00%) Windows
1 1 (100.00%) HPUX
1 1 (100.00%) Solaris
1 1 (100.00%) Linux
1 1 (100.00%) Data Warehouse
1 1 (100.00%) MS Exchange
1 1 (100.00%) LAN
1 1 (100.00%) VoIP
1 1 (100.00%) WAN
1 1 (100.00%) Unisys
1 1 (100.00%) VPN
1 1 (100.00%) HP
1 1 (100.00%) Citrix
1 1 (100.00%) SAN
1 1 (100.00%) Middleware
1 1 (100.00%) Mainframe
1 1 (100.00%) Firewall
1 1 (100.00%) Cryptography
1 1 (100.00%) iSeries
1 1 (100.00%) NAS
1 1 (100.00%) Hadoop
1 1 (100.00%) PABX
1 1 (100.00%) Office 365
1 1 (100.00%) Big Data
1 1 (100.00%) Cybersecurity

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%) MS Exchange
Cloud Services
1 1 (100.00%) Office 365
Communications & Networking
1 1 (100.00%) Firewall
1 1 (100.00%) LAN
1 1 (100.00%) NAS
1 1 (100.00%) PABX
1 1 (100.00%) SAN
1 1 (100.00%) VoIP
1 1 (100.00%) VPN
1 1 (100.00%) WAN
Database & Business Intelligence
1 1 (100.00%) Big Data
1 1 (100.00%) Data Warehouse
1 1 (100.00%) DB2
1 1 (100.00%) Hadoop
Job Titles
1 1 (100.00%) Auditor
1 1 (100.00%) Security Auditor
Libraries, Frameworks & Software Standards
1 1 (100.00%) Middleware
Miscellaneous
1 1 (100.00%) iSeries
1 1 (100.00%) Mainframe
Operating Systems
1 1 (100.00%) HPUX
1 1 (100.00%) Linux
1 1 (100.00%) Solaris
1 1 (100.00%) Unix
1 1 (100.00%) Windows
1 1 (100.00%) Windows Server
Processes & Methodologies
1 1 (100.00%) Coaching
1 1 (100.00%) Cryptography
1 1 (100.00%) Cybersecurity
1 1 (100.00%) ITIL
1 1 (100.00%) Malware Detection/Protection
Programming Languages
1 1 (100.00%) SQL
Vendors
1 1 (100.00%) Citrix
1 1 (100.00%) HP
1 1 (100.00%) Oracle
1 1 (100.00%) Unisys