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 3 months to 26 June 2017 with a comparison to the same period in the previous 2 years.

IBM z/OS
London / City of London
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 232 - 303
Rank change year-on-year - 0  
Permanent jobs citing zOS 2 0 9
As % of all permanent IT jobs advertised in the City of London 0.038% - 0.087%
As % of the Operating Systems category 0.14% - 0.37%
Number of salaries quoted 1 0 1
Median salary £52,500 - £46,000
UK excluding London median salary £37,500 £35,000 £50,000
% change year-on-year +7.14% -30.00%  

zOS is in the operating system skills category. The next 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.

Operating System Skills
City of London
Permanent job vacancies with a requirement for operating system skills 1380 1690 2452
As % of all permanent IT job vacancies advertised in the City of London 26.35% 26.88% 23.73%
Number of salaries quoted 1215 1535 2146
Median salary £52,500 £52,500 £50,000
Median salary % change year-on-year - +5.00%  
90% offered a salary of more than £29,250 £30,000 £30,000
10% offered a salary of more than £83,750 £72,500 £80,000
UK excluding London median salary £37,500 £37,500 £37,500

zOS
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing zOS as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

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 26 June 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 3 (100.00%) Management Information System
1 3 (100.00%) Banking
2 2 (66.67%) zSecure
2 2 (66.67%) Validation
2 2 (66.67%) CICS
2 2 (66.67%) RACF
2 2 (66.67%) Mainframe
2 2 (66.67%) DB2
3 1 (33.33%) WebLogic
3 1 (33.33%) Microsoft Office
3 1 (33.33%) Unix
3 1 (33.33%) Windows
3 1 (33.33%) Tomcat
3 1 (33.33%) Business Intelligence
3 1 (33.33%) RDBMS
3 1 (33.33%) IBM
3 1 (33.33%) BusinessObjects
3 1 (33.33%) Financial Institution
3 1 (33.33%) Project Management
3 1 (33.33%) Risk Management
3 1 (33.33%) Finance
3 1 (33.33%) KYC
3 1 (33.33%) Anti-Money Laundering
3 1 (33.33%) SEPA
3 1 (33.33%) Presales
3 1 (33.33%) SQL
3 1 (33.33%) Billing
3 1 (33.33%) Microsoft PowerPoint
3 1 (33.33%) WebSphere
3 1 (33.33%) Degree

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 2 (66.67%) CICS
2 1 (33.33%) Tomcat
2 1 (33.33%) WebLogic
2 1 (33.33%) WebSphere
Applications
1 1 (33.33%) Microsoft Office
1 1 (33.33%) Microsoft PowerPoint
Database & Business Intelligence
1 2 (66.67%) DB2
2 1 (33.33%) BusinessObjects
2 1 (33.33%) RDBMS
2 1 (33.33%) Relational Database
General
1 3 (100.00%) Banking
2 1 (33.33%) Billing
2 1 (33.33%) Finance
2 1 (33.33%) Financial Institution
2 1 (33.33%) French Language
Job Titles
1 1 (33.33%) Analyst
1 1 (33.33%) RACF Analyst
1 1 (33.33%) RACF Security Analyst
1 1 (33.33%) Security Analyst
Miscellaneous
1 3 (100.00%) Management Information System
2 2 (66.67%) Mainframe
3 1 (33.33%) Analytical Skills
3 1 (33.33%) SWIFT
Operating Systems
1 1 (33.33%) Unix
1 1 (33.33%) Windows
Processes & Methodologies
1 2 (66.67%) Validation
2 1 (33.33%) Anti-Money Laundering
2 1 (33.33%) Business Intelligence
2 1 (33.33%) KYC
2 1 (33.33%) Presales
2 1 (33.33%) Project Management
2 1 (33.33%) Risk Management
2 1 (33.33%) Time Management
2 1 (33.33%) Use Case
Programming Languages
1 1 (33.33%) SQL
Qualifications
1 1 (33.33%) Degree
Quality Assurance & Compliance
1 1 (33.33%) SEPA
System Software
1 2 (66.67%) RACF
Systems Management
1 2 (66.67%) zSecure
Vendors
1 1 (33.33%) IBM