Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for zOS skills. Included is a benchmarking guide to the contractor rates 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.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

IBM z/OS
Central London > City of London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 243 245 267
Rank change year-on-year +2 +22 +22
Contract jobs citing zOS 6 2 6
As % of all contract IT jobs advertised in the City of London 0.085% 0.030% 0.065%
As % of the Operating Systems category 0.42% 0.14% 0.29%
Number of daily rates quoted 6 2 2
City of London median daily rate £504 £400 £376
Median daily rate % change year-on-year +25.94% +6.31% -31.59%
10th Percentile £485 £328 £323
90th Percentile £669 £473 £431
Central London median daily rate £498 £400 £425
% change year-on-year +24.38% -5.88% -22.73%
Number of hourly rates quoted 0 0 2
City of London median hourly rate - - £62.50
Central London median hourly rate - - £62.50

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

All Operating Systems
City of London
Contract vacancies with a requirement for operating system skills 1426 1418 2053
As % of all contract IT jobs advertised in the City of London 20.14% 21.13% 22.20%
Number of daily rates quoted 1128 1118 1623
City of London median daily rate £475 £463 £430
Median daily rate % change year-on-year +2.70% +7.56% +7.37%
10th Percentile £225 £275 £225
90th Percentile £675 £625 £625
Central London median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 48 31 62
City of London median hourly rate £15.75 £19.00 £18.75
Median hourly rate % change year-on-year -17.11% +1.33% +10.29%
10th Percentile £11.25 £11.25 £12.04
90th Percentile £26.28 £33.75 £36.80
Central London median hourly rate £17.00 £17.50 £18.00
% change year-on-year -2.86% -2.78% +12.50%

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
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing zOS in the City of London.

Contractor daily rate trend for zOS in the City of London

zOS
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing zOS in the City of London over the 6 months to 18 November 2017.

Contractor daily rate histogram for zOS in the City of London

zOS
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for zOS in the City of London

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

1 5 (83.33%) Windows
1 5 (83.33%) Stakeholder Management
1 5 (83.33%) Finance
2 3 (50.00%) Advertising
2 3 (50.00%) Active Directory
2 3 (50.00%) Middleware
2 3 (50.00%) Mobile App
2 3 (50.00%) Blockchain
3 2 (33.33%) Time Sharing Option
3 2 (33.33%) Tandem
3 2 (33.33%) Unix
3 2 (33.33%) JCL
3 2 (33.33%) B2B
3 2 (33.33%) IBM
3 2 (33.33%) Banking
3 2 (33.33%) Cryptography
3 2 (33.33%) IBM Sterling
3 2 (33.33%) ISPF
3 2 (33.33%) iSeries
4 1 (16.67%) Microsoft Azure
4 1 (16.67%) Amazon AWS
4 1 (16.67%) Network Security
4 1 (16.67%) VMware Infrastructure
4 1 (16.67%) Red Hat Enterprise Linux
4 1 (16.67%) SUSE
4 1 (16.67%) Replication
4 1 (16.67%) VMware
4 1 (16.67%) IBM HTTP Server
4 1 (16.67%) SQL
4 1 (16.67%) Oracle

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 (16.67%) CICS
1 1 (16.67%) IBM HTTP Server
Cloud Services
1 1 (16.67%) Amazon AWS
1 1 (16.67%) Microsoft Azure
Communications & Networking
1 1 (16.67%) Network Security
1 1 (16.67%) SMS
Database & Business Intelligence
1 3 (50.00%) Blockchain
2 1 (16.67%) DB2
General
1 5 (83.33%) Finance
2 3 (50.00%) Advertising
3 2 (33.33%) Banking
Job Titles
1 3 (50.00%) Architect
2 2 (33.33%) Security Architect
3 1 (16.67%) Design Engineer
3 1 (16.67%) Infrastructure Architect
3 1 (16.67%) Infrastructure Solutions Architect
3 1 (16.67%) Security Engineer
3 1 (16.67%) Security Solutions Architect
3 1 (16.67%) Solutions Architect
Libraries, Frameworks & Software Standards
1 3 (50.00%) Middleware
2 2 (33.33%) ISPF
3 1 (16.67%) WebSphere MQ
Miscellaneous
1 3 (50.00%) Mobile App
2 2 (33.33%) iSeries
2 2 (33.33%) Tandem
3 1 (16.67%) Replication
Operating Systems
1 5 (83.33%) Windows
2 2 (33.33%) Unix
3 1 (16.67%) AIX
3 1 (16.67%) Linux
3 1 (16.67%) Red Hat Enterprise Linux
3 1 (16.67%) Solaris
3 1 (16.67%) SUSE
Processes & Methodologies
1 5 (83.33%) Stakeholder Management
2 2 (33.33%) B2B
2 2 (33.33%) Cryptography
3 1 (16.67%) Agile Software Development
3 1 (16.67%) Cybersecurity
3 1 (16.67%) Feasibility Study
Programming Languages
1 2 (33.33%) JCL
2 1 (16.67%) SQL
System Software
1 3 (50.00%) Active Directory
2 2 (33.33%) Time Sharing Option
3 1 (16.67%) VMware Infrastructure
Vendors
1 2 (33.33%) IBM
1 2 (33.33%) IBM Sterling
2 1 (16.67%) Intel
2 1 (16.67%) Oracle
2 1 (16.67%) VMware