Period
to 27 October 2021

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 27 October 2021 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
27 Oct 2021
Same period 2020 Same period 2019
Rank 544 341 552
Rank change year-on-year -203 +211 +72
Contract jobs citing zOS 28 22 11
As % of all contract jobs advertised in London 0.077% 0.15% 0.030%
As % of the Operating Systems category 0.55% 0.93% 0.17%
Number of daily rates quoted 12 6 4
10th Percentile £453 £388 £364
25th Percentile £475 £403 £367
Median daily rate (50th Percentile) £508 £435 £413
Median % change year-on-year +16.67% +5.45% -10.81%
75th Percentile £550 £520 £488
90th Percentile " £566 £510
England median daily rate £496 £400 £425
% change year-on-year +23.97% -5.88% +6.25%

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 5,053 2,361 6,475
As % of all contract IT jobs advertised in London 13.97% 16.49% 17.76%
Number of daily rates quoted 3,732 1,646 4,626
10th Percentile £256 £250 £170
25th Percentile £425 £370 £325
Median daily rate (50th Percentile) £533 £488 £475
Median % change year-on-year +9.33% +2.63% -2.56%
75th Percentile £638 £575 £575
90th Percentile £713 £656 £656
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% -1.16%
Number of hourly rates quoted 84 32 174
10th Percentile £15.00 £15.11 £14.00
25th Percentile £17.62 £19.17 £16.63
Median hourly rate £24.75 £22.75 £21.00
Median % change year-on-year +8.79% +8.33% +12.30%
75th Percentile £46.31 £36.38 £34.69
90th Percentile £61.58 £43.68 £50.88
England median hourly rate £17.50 £18.38 £17.50
% change year-on-year -4.76% +5.00% -

zOS
Job Vacancy Trend in London

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

Job vacancy trend for zOS in London

zOS
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing zOS in London.

Daily rate trend for zOS in London

zOS
Daily Rate Histogram in London

Daily rate distribution for jobs citing zOS in London over the 6 months to 27 October 2021.

Daily rate histogram for zOS in London

zOS
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing zOS in London.

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 27 October 2021. 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 -58 1 £500 -4.76%
zOS
England

For the 6 months to 27 October 2021, 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 20 (71.43%) Mainframe
2 14 (50.00%) CICS
3 11 (39.29%) IBM
3 11 (39.29%) DB2
3 11 (39.29%) REXX
4 10 (35.71%) CA
5 8 (28.57%) Capacity Planning
5 8 (28.57%) Performance Tuning
6 7 (25.00%) Time Sharing Option
6 7 (25.00%) Disaster Recovery
6 7 (25.00%) ISPF
6 7 (25.00%) IDMS
6 7 (25.00%) JCL
7 6 (21.43%) SQL
8 5 (17.86%) HTML
8 5 (17.86%) JDBC
8 5 (17.86%) ODBC
8 5 (17.86%) Social Skills
8 5 (17.86%) High Availability
9 4 (14.29%) Agile Software Development
9 4 (14.29%) Banking
10 3 (10.71%) PostgreSQL
10 3 (10.71%) Scrum
10 3 (10.71%) Legal
10 3 (10.71%) ISTQB
10 3 (10.71%) Continuous Integration
10 3 (10.71%) Data Protection
10 3 (10.71%) PowerShell
10 3 (10.71%) Data Protection Act
10 3 (10.71%) MVS

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 14 (50.00%) CICS
Business Applications
1 1 (3.57%) Postilion
Cloud Services
1 3 (10.71%) AWS
1 3 (10.71%) Azure
1 3 (10.71%) Snowflake
2 1 (3.57%) GCP
Communications & Networking
1 1 (3.57%) ATM
1 1 (3.57%) SAN
Database & Business Intelligence
1 11 (39.29%) DB2
2 7 (25.00%) IDMS
3 3 (10.71%) MySQL
3 3 (10.71%) Oracle Database
3 3 (10.71%) PostgreSQL
3 3 (10.71%) SQL Server
4 1 (3.57%) DB2 UDB
Development Applications
1 1 (3.57%) IBM UrbanCode
General
1 5 (17.86%) Social Skills
2 4 (14.29%) Banking
3 3 (10.71%) Legal
4 2 (7.14%) Finance
5 1 (3.57%) Retail
5 1 (3.57%) Retail Banking
Job Titles
1 10 (35.71%) Administrator
2 5 (17.86%) DBA
3 3 (10.71%) Consultant
3 3 (10.71%) Mainframe Consultant
3 3 (10.71%) Programmer
3 3 (10.71%) Project Manager
3 3 (10.71%) Systems Programmer
3 3 (10.71%) Test Automation Engineer
3 3 (10.71%) Test Engineer
3 3 (10.71%) z/OS Systems Programmer
4 2 (7.14%) Applications Developer
4 2 (7.14%) Developer
4 2 (7.14%) Mainframe DBA
4 2 (7.14%) Storage Administrator
5 1 (3.57%) Architect
5 1 (3.57%) Database Specialist
5 1 (3.57%) Mainframe Architect
5 1 (3.57%) Mainframe Project Manager
5 1 (3.57%) Security Engineer
5 1 (3.57%) Solutions Architect
Libraries, Frameworks & Software Standards
1 7 (25.00%) ISPF
2 5 (17.86%) HTML
2 5 (17.86%) JDBC
2 5 (17.86%) ODBC
3 3 (10.71%) pytest
4 1 (3.57%) ATL
Miscellaneous
1 20 (71.43%) Mainframe
2 3 (10.71%) Data Centre
2 3 (10.71%) Data Protection Act
2 3 (10.71%) Legacy Applications
3 2 (7.14%) iSeries
3 2 (7.14%) VSAM
4 1 (3.57%) IBM Mainframe
Operating Systems
1 3 (10.71%) Linux
1 3 (10.71%) MVS
2 1 (3.57%) OS/400
Processes & Methodologies
1 8 (28.57%) Capacity Planning
1 8 (28.57%) Performance Tuning
2 7 (25.00%) Disaster Recovery
3 5 (17.86%) High Availability
4 4 (14.29%) Agile Software Development
5 3 (10.71%) Continuous Integration
5 3 (10.71%) Data Engineering
5 3 (10.71%) Data Protection
5 3 (10.71%) Data Sharing
5 3 (10.71%) Scrum
5 3 (10.71%) Test Automation
6 2 (7.14%) Digital Transformation Programme
6 2 (7.14%) Migration
6 2 (7.14%) MSF
6 2 (7.14%) Problem Management
6 2 (7.14%) SDLC
6 2 (7.14%) Waterfall
7 1 (3.57%) Change Management
7 1 (3.57%) Security Management
7 1 (3.57%) Statistics
Programming Languages
1 11 (39.29%) REXX
2 7 (25.00%) JCL
3 6 (21.43%) SQL
4 3 (10.71%) ANSI SQL
4 3 (10.71%) Bash Shell
4 3 (10.71%) PL/SQL
4 3 (10.71%) PowerShell
4 3 (10.71%) Python
4 3 (10.71%) T-SQL
5 2 (7.14%) COBOL
6 1 (3.57%) RPG
Qualifications
1 3 (10.71%) ISTQB
System Software
1 7 (25.00%) Time Sharing Option
2 3 (10.71%) Docker
2 3 (10.71%) RACF
2 3 (10.71%) Tivoli Workload Scheduler
3 1 (3.57%) ACF2
Systems Management
1 3 (10.71%) Tivoli
2 2 (7.14%) Control-M
Vendors
1 11 (39.29%) IBM
2 10 (35.71%) CA
3 3 (10.71%) Oracle
4 2 (7.14%) Broadcom