The following table provides summary statistics for contract job vacancies advertised in 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 3 months to 27 June 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
England / London
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 408 403 399
Rank change year-on-year -5 -4  
Contract jobs citing zOS 16 24 35
As % of all contract IT jobs advertised in London 0.077% 0.11% 0.15%
As % of the Operating Systems category 0.38% 0.51% 0.71%
Number of daily rates quoted 7 16 26
Median daily rate £475 £563 £335
Median daily rate % change year-on-year -15.55% +67.91%  
90% offered a daily rate of more than £411 £463 £269
10% offered a daily rate of more than £585 £700 £450
UK excluding London median daily rate £400 £442 £417
% change year-on-year -9.50% +5.99%  
Number of hourly rates quoted 0 0 2
Median hourly rate - - £62.50
UK excluding London median hourly rate - £35.00 £31.30
% change year-on-year - +11.82%  

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

Contract Operating System Skills
London
Contract job vacancies with a requirement for operating system skills 4173 4747 4963
As % of all contract IT job vacancies advertised in London 20.05% 21.80% 21.54%
Number of daily rates quoted 2929 3389 3337
Median daily rate £450 £425 £390
Median daily rate % change year-on-year +5.88% +8.97%  
90% offered a daily rate of more than £215 £220 £190
10% offered a daily rate of more than £600 £575 £555
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 111 95 184
Median hourly rate £19.00 £16.25 £19.50
Median hourly rate % change year-on-year +16.92% -16.66%  
90% offered a hourly rate of more than £12.30 £12.50 £12.90
10% offered a hourly rate of more than £50.00 £40.00 £47.83
UK excluding London median hourly rate £15.50 £17.50 £16.50
% change year-on-year -11.42% +6.06%  

zOS
Job Vacancy Trend in London

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

Job vacancy trend for zOS in London

zOS
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for zOS in London

zOS
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing zOS in London over the 3 months to 27 June 2017.

Contractor daily rate histogram for zOS in London

zOS
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for zOS in London

zOS
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing zOS within the London region over the 3 months to 27 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London -2 3 £475 -19.14%
zOS
England

For the 6 months to 27 June 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 London region with a requirement for zOS.

1 20 (68.97%) IBM
2 17 (58.62%) Windows
3 15 (51.72%) Unix
3 15 (51.72%) JCL
3 15 (51.72%) iSeries
4 14 (48.28%) Time Sharing Option
4 14 (48.28%) Banking
4 14 (48.28%) ISPF
4 14 (48.28%) Mainframe
5 13 (44.83%) Tandem
5 13 (44.83%) B2B
5 13 (44.83%) IBM Sterling
6 11 (37.93%) Axway
6 11 (37.93%) FTP
7 10 (34.48%) Finance
8 8 (27.59%) DB2
9 7 (24.14%) Middleware
10 5 (17.24%) Linux
10 5 (17.24%) RACF
11 4 (13.79%) WebSphere MQ
11 4 (13.79%) CICS
11 4 (13.79%) AIX
11 4 (13.79%) Service Delivery
11 4 (13.79%) WebSphere
11 4 (13.79%) IBM Mainframe
11 4 (13.79%) zSecure
12 3 (10.34%) ACF2
12 3 (10.34%) Sarbanes-Oxley
12 3 (10.34%) Stakeholder Management
12 3 (10.34%) IBM HTTP Server

zOS
Co-occurring IT Skills in 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 4 (13.79%) CICS
1 4 (13.79%) WebSphere
2 3 (10.34%) IBM HTTP Server
3 2 (6.90%) Apache
3 2 (6.90%) IIS
3 2 (6.90%) iPlanet
3 2 (6.90%) WebSphere Application Server
3 2 (6.90%) WebSphere Portal
3 2 (6.90%) WebSphere Process Server
4 1 (3.45%) MS Exchange
Applications
1 2 (6.90%) Microsoft Excel
Business Applications
1 1 (3.45%) Maximo
Cloud Services
1 1 (3.45%) Amazon AWS
1 1 (3.45%) IBM Cloud
1 1 (3.45%) Microsoft Azure
Communications & Networking
1 11 (37.93%) FTP
2 1 (3.45%) SAN
2 1 (3.45%) SMS
2 1 (3.45%) SSL
Database & Business Intelligence
1 8 (27.59%) DB2
2 1 (3.45%) Adabas
2 1 (3.45%) Blockchain
2 1 (3.45%) IDMS
2 1 (3.45%) SQL Server
General
1 14 (48.28%) Banking
2 10 (34.48%) Finance
3 2 (6.90%) Advertising
4 1 (3.45%) Danish Language
Job Titles
1 8 (27.59%) Consultant
2 4 (13.79%) Administrator
3 3 (10.34%) Security Engineer
4 2 (6.90%) Applications Consultant
4 2 (6.90%) Architect
4 2 (6.90%) DBA
4 2 (6.90%) Developer
4 2 (6.90%) RACF Engineer
4 2 (6.90%) Server Consultant
4 2 (6.90%) WebSphere Consultant
4 2 (6.90%) WebSphere Server Consultant
4 2 (6.90%) z/OS Engineer
5 1 (3.45%) DB2 DBA
5 1 (3.45%) Designer
5 1 (3.45%) IBM Mainframe Developer
5 1 (3.45%) Infrastructure Solutions Architect
5 1 (3.45%) Mainframe DBA
5 1 (3.45%) Mainframe Developer
5 1 (3.45%) RACF Consultant
5 1 (3.45%) Systems Programmer
Libraries, Frameworks & Software Standards
1 14 (48.28%) ISPF
2 7 (24.14%) Middleware
3 4 (13.79%) WebSphere MQ
4 2 (6.90%) IBM Integration Bus
4 2 (6.90%) Web Services
Miscellaneous
1 15 (51.72%) iSeries
2 14 (48.28%) Mainframe
3 13 (44.83%) Tandem
4 4 (13.79%) IBM Mainframe
5 2 (6.90%) DataPower
6 1 (3.45%) AS400
6 1 (3.45%) Clustering
6 1 (3.45%) Mobile App
6 1 (3.45%) Replication
6 1 (3.45%) VSAM
Operating Systems
1 17 (58.62%) Windows
2 15 (51.72%) Unix
3 5 (17.24%) Linux
4 4 (13.79%) AIX
5 3 (10.34%) Solaris
6 1 (3.45%) MVS
6 1 (3.45%) Red Hat Enterprise Linux
6 1 (3.45%) SUSE
Processes & Methodologies
1 13 (44.83%) B2B
2 4 (13.79%) Service Delivery
3 3 (10.34%) Stakeholder Management
4 2 (6.90%) Service Management
5 1 (3.45%) Continuous Improvement
5 1 (3.45%) Cybersecurity
5 1 (3.45%) Data Management
5 1 (3.45%) Disaster Recovery
5 1 (3.45%) Feasibility Study
5 1 (3.45%) High Availability
5 1 (3.45%) Performance Management
5 1 (3.45%) Performance Tuning
5 1 (3.45%) Problem Management
5 1 (3.45%) Test Strategy
Programming Languages
1 15 (51.72%) JCL
2 2 (6.90%) Java
2 2 (6.90%) SQL
3 1 (3.45%) COBOL
3 1 (3.45%) PL/1
Qualifications
1 2 (6.90%) Degree
Quality Assurance & Compliance
1 3 (10.34%) Sarbanes-Oxley
2 1 (3.45%) SEPA
System Software
1 14 (48.28%) Time Sharing Option
2 5 (17.24%) RACF
3 3 (10.34%) ACF2
4 1 (3.45%) Active Directory
4 1 (3.45%) Job Entry Subsystem
4 1 (3.45%) Virtual Machines
4 1 (3.45%) VMware Infrastructure
Systems Management
1 4 (13.79%) zSecure
2 1 (3.45%) Oracle Enterprise Manager
2 1 (3.45%) Tivoli
2 1 (3.45%) Tivoli Storage Manager
Vendors
1 20 (68.97%) IBM
2 13 (44.83%) IBM Sterling
3 11 (37.93%) Axway
4 3 (10.34%) Microsoft
5 2 (6.90%) Oracle
5 2 (6.90%) VMware
6 1 (3.45%) CA
6 1 (3.45%) Citrix
6 1 (3.45%) Intel
6 1 (3.45%) SAP