Period
to 19 January 2019

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 6 months to 19 January 2019 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
6 months to
19 Jan 2019
Same period 2018 Same period 2017
Rank 615 607 577
Rank change year-on-year -8 -30 -42
Contract jobs citing zOS 22 25 24
As % of all contract IT jobs advertised in London 0.050% 0.054% 0.057%
As % of the Operating Systems category 0.26% 0.26% 0.28%
Number of daily rates quoted 8 21 15
London median daily rate £463 £450 £500
Median daily rate % change year-on-year +2.78% -10.00% +11.11%
10th Percentile £363 £325 £453
90th Percentile £901 £578 £569
England median daily rate £408 £450 £440
% change year-on-year -9.44% +2.27% -2.22%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £55.00 £27.50 £52.50
% change year-on-year +100.00% -47.62% +81.03%

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 London with a requirement for operating system skills.

All Operating Systems
London
Contract vacancies with a requirement for operating system skills 8,601 9,584 8,711
As % of all contract IT jobs advertised in London 19.47% 20.63% 20.80%
Number of daily rates quoted 5,998 6,819 6,043
London median daily rate £488 £475 £450
Median daily rate % change year-on-year +2.63% +5.56% +5.88%
10th Percentile £185 £200 £238
90th Percentile £650 £638 £613
England median daily rate £425 £425 £413
% change year-on-year - +3.03% +3.13%
Number of hourly rates quoted 248 285 197
London median hourly rate £18.70 £18.70 £19.00
Median hourly rate % change year-on-year - -1.58% +9.29%
10th Percentile £12.50 £12.00 £12.40
90th Percentile £46.98 £47.83 £50.00
England median hourly rate £17.50 £17.43 £16.50
% change year-on-year +0.40% +5.64% -

zOS
Job Vacancy Trend in London

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

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 6 months to 19 January 2019.

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 6 months to 19 January 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -18 2 £375 -24.05% 1
West London - 1 - -
zOS
England

For the 6 months to 19 January 2019, IT contractor 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 contract job ads across the London region with a requirement for zOS.

1 18 (81.82%) Mainframe
2 15 (68.18%) JCL
3 14 (63.64%) DB2
3 14 (63.64%) IBM
4 13 (59.09%) ISPF
5 12 (54.55%) CICS
5 12 (54.55%) COBOL
5 12 (54.55%) REXX
6 10 (45.45%) Assembly Language
6 10 (45.45%) Time Sharing Option
7 9 (40.91%) SMTP
7 9 (40.91%) SNMP
7 9 (40.91%) Unix
8 8 (36.36%) Web Development
9 5 (22.73%) Finance
10 4 (18.18%) Windows
10 4 (18.18%) Information Security
10 4 (18.18%) Banking
11 3 (13.64%) Node.js
11 3 (13.64%) Low Latency
11 3 (13.64%) ACF2
11 3 (13.64%) CISA
11 3 (13.64%) CISM
11 3 (13.64%) Java
11 3 (13.64%) SQL
11 3 (13.64%) .NET
11 3 (13.64%) Linux
11 3 (13.64%) CISSP
11 3 (13.64%) C++
11 3 (13.64%) RACF

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 12 (54.55%) CICS
2 1 (4.55%) Site Server
2 1 (4.55%) WebSphere
2 1 (4.55%) WebSphere Application Server
Communications & Networking
1 9 (40.91%) SMTP
1 9 (40.91%) SNMP
2 2 (9.09%) Firewall
2 2 (9.09%) Network Security
Database & Business Intelligence
1 14 (63.64%) DB2
2 3 (13.64%) Blockchain
General
1 5 (22.73%) Finance
2 4 (18.18%) Banking
Job Titles
1 5 (22.73%) Developer
1 5 (22.73%) Mainframe Developer
2 4 (18.18%) Architect
3 3 (13.64%) Consultant
3 3 (13.64%) Mainframe Architect
3 3 (13.64%) Security Consultant
4 2 (9.09%) Senior Consultant
4 2 (9.09%) Senior Security Consultant
4 2 (9.09%) Technical Leader
5 1 (4.55%) Administrator
5 1 (4.55%) Assembler Developer
5 1 (4.55%) Cloud Architect
5 1 (4.55%) Head of Engineering
5 1 (4.55%) Head of Technology
5 1 (4.55%) Mainframe Assembler Developer
5 1 (4.55%) Mainframe Consultant
5 1 (4.55%) Mainframe Programmer
5 1 (4.55%) Programmer
5 1 (4.55%) RACF Consultant
5 1 (4.55%) z/OS Operator
Libraries, Frameworks & Software Standards
1 13 (59.09%) ISPF
2 3 (13.64%) .NET
2 3 (13.64%) Node.js
3 1 (4.55%) WebSphere MQ
Miscellaneous
1 18 (81.82%) Mainframe
2 2 (9.09%) AS400
2 2 (9.09%) IBM Mainframe
Operating Systems
1 9 (40.91%) Unix
2 4 (18.18%) Windows
3 3 (13.64%) Linux
4 1 (4.55%) AIX
4 1 (4.55%) MVS
4 1 (4.55%) Windows Server
Processes & Methodologies
1 8 (36.36%) Web Development
2 4 (18.18%) Information Security
3 3 (13.64%) Low Latency
4 2 (9.09%) Collaborative Working
4 2 (9.09%) Computer Science
4 2 (9.09%) Cybersecurity
5 1 (4.55%) Coaching
5 1 (4.55%) DevOps
5 1 (4.55%) Disaster Recovery
5 1 (4.55%) High Availability
5 1 (4.55%) Mentoring
5 1 (4.55%) Microservices
5 1 (4.55%) SDLC
Programming Languages
1 15 (68.18%) JCL
2 12 (54.55%) COBOL
2 12 (54.55%) REXX
3 10 (45.45%) Assembly Language
4 3 (13.64%) C++
4 3 (13.64%) Java
4 3 (13.64%) SQL
5 2 (9.09%) RPG
Qualifications
1 3 (13.64%) CISA
1 3 (13.64%) CISM
1 3 (13.64%) CISSP
Quality Assurance & Compliance
1 1 (4.55%) QA
System Software
1 10 (45.45%) Time Sharing Option
2 3 (13.64%) ACF2
2 3 (13.64%) RACF
Systems Management
1 2 (9.09%) CA Endevor
Vendors
1 14 (63.64%) IBM
2 2 (9.09%) Kofax
3 1 (4.55%) Mercator
3 1 (4.55%) SAP
3 1 (4.55%) Unisys