Period
to 17 May 2021

The following table provides summary statistics for permanent job vacancies with a requirement for zOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited zOS over the 6 months to 17 May 2021 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
17 May 2021
Same period 2020 Same period 2019
Rank 869 890 1047
Rank change year-on-year +21 +157 +141
Permanent jobs citing zOS 19 33 55
As % of all permanent jobs advertised in the UK 0.021% 0.034% 0.038%
As % of the Operating Systems category 0.11% 0.16% 0.16%
Number of salaries quoted 15 26 45
10th Percentile £43,750 £46,250 "
25th Percentile £50,000 £52,500 £31,250
Median annual salary (50th Percentile) £62,000 £71,250 £40,000
Median % change year-on-year -12.98% +78.13% -25.58%
75th Percentile £68,875 £93,125 £63,750
90th Percentile £74,250 £102,500 £101,500
UK excluding London median annual salary £50,000 £60,000 £38,750
% change year-on-year -16.67% +54.84% -26.19%

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

All Operating Systems
UK
Permanent vacancies with a requirement for operating system skills 17,178 20,389 33,456
As % of all permanent IT jobs advertised in the UK 19.04% 21.18% 22.99%
Number of salaries quoted 13,609 16,673 26,876
10th Percentile £27,500 £26,250 £25,750
25th Percentile £36,250 £33,750 £32,500
Median annual salary (50th Percentile) £50,000 £47,500 £47,500
Median % change year-on-year +5.26% - +3.26%
75th Percentile £67,500 £65,000 £65,000
90th Percentile £82,500 £80,000 £78,750
UK excluding London median annual salary £45,000 £42,500 £42,500
% change year-on-year +5.88% - +6.25%

zOS
Job Vacancy Trend

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

Job vacancy trend for zOS in the UK

zOS
Salary Trend

3-month moving average salary quoted in jobs citing zOS.

Salary trend for zOS in the UK

zOS
Salary Histogram

Salary distribution for jobs citing zOS over the 6 months to 17 May 2021.

Salary histogram for zOS in the UK

zOS
Top 8 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing zOS within the UK over the 6 months to 17 May 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +37 14 £56,250 +2.27% 2
UK excluding London +19 12 £50,000 -16.67% 2
London +45 7 £67,500 -21.74%
Work from Home -163 6 £50,000 -9.09% 2
North West +14 5 £50,000 -9.09%
North of England -16 5 £50,000 -9.09%
Scotland -19 5 £62,000 -24.85%
South East +47 2 - - 2

For the 6 months to 17 May 2021, IT 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 permanent job ads with a requirement for zOS.

1 9 (47.37%) DB2
1 9 (47.37%) Unix
1 9 (47.37%) Mainframe
2 8 (42.11%) Linux
2 8 (42.11%) IBM
3 7 (36.84%) Oracle
3 7 (36.84%) Banking
3 7 (36.84%) AWS
4 6 (31.58%) PowerShell
4 6 (31.58%) QA
4 6 (31.58%) SQL
5 5 (26.32%) SQL Server
5 5 (26.32%) Sybase
5 5 (26.32%) MySQL
5 5 (26.32%) Windows
5 5 (26.32%) Visual Studio
5 5 (26.32%) CICS
5 5 (26.32%) User Acceptance Testing
5 5 (26.32%) SQL Server 2005
5 5 (26.32%) SQL Server Integration Services
5 5 (26.32%) Amazon RDS
5 5 (26.32%) Performance Monitoring
5 5 (26.32%) Change Data Capture
5 5 (26.32%) Power BI
5 5 (26.32%) Power Platform
5 5 (26.32%) SQL Server 2019
6 4 (21.05%) Infrastructure as Code
6 4 (21.05%) Kubernetes
6 4 (21.05%) Terraform
6 4 (21.05%) Ansible

zOS
Co-occurring IT Skills 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 5 (26.32%) CICS
2 2 (10.53%) WebLogic
Cloud Services
1 7 (36.84%) AWS
2 5 (26.32%) Power Platform
3 4 (21.05%) Azure
4 2 (10.53%) GCP
Communications & Networking
1 1 (5.26%) Internet
Database & Business Intelligence
1 9 (47.37%) DB2
2 5 (26.32%) Amazon RDS
2 5 (26.32%) MySQL
2 5 (26.32%) Power BI
2 5 (26.32%) SQL Server
2 5 (26.32%) SQL Server 2005
2 5 (26.32%) SQL Server 2019
2 5 (26.32%) SQL Server Integration Services
3 1 (5.26%) Relational Database
Development Applications
1 5 (26.32%) Visual Studio
2 3 (15.79%) Bitbucket
2 3 (15.79%) Gerrit
2 3 (15.79%) Git (software)
2 3 (15.79%) GitLab
2 3 (15.79%) Team Foundation Server
2 3 (15.79%) Visual Studio Team System
3 2 (10.53%) Jenkins
3 2 (10.53%) Sonatype Nexus
General
1 7 (36.84%) Banking
2 4 (21.05%) Finance
3 2 (10.53%) Social Skills
4 1 (5.26%) Automotive
4 1 (5.26%) Front Office
4 1 (5.26%) Investment Banking
4 1 (5.26%) Retail
Job Titles
1 5 (26.32%) DBA
1 5 (26.32%) SQL DBA
2 4 (21.05%) DevOps Engineer
2 4 (21.05%) Programmer
2 4 (21.05%) Systems Programmer
2 4 (21.05%) z/OS Systems Programmer
3 3 (15.79%) Linux Engineer
4 2 (10.53%) CICS Programmer
4 2 (10.53%) CICS Systems Programmer
4 2 (10.53%) Java Engineer
4 2 (10.53%) Linux DevOps Engineer
4 2 (10.53%) Linux/Unix DevOps
4 2 (10.53%) Mainframe Programmer
4 2 (10.53%) Mainframe Specialist
4 2 (10.53%) Mainframe Systems Programmer
4 2 (10.53%) Senior DevOps
4 2 (10.53%) Senior DevOps Engineer
4 2 (10.53%) z/OS Engineer
5 1 (5.26%) AWS DevOps
5 1 (5.26%) AWS DevOps Engineer
Libraries, Frameworks & Software Standards
1 4 (21.05%) Middleware
2 3 (15.79%) ISPF
3 2 (10.53%) .NET
Miscellaneous
1 9 (47.37%) Mainframe
2 2 (10.53%) Cloud Native
2 2 (10.53%) Clustering
2 2 (10.53%) Private Cloud
3 1 (5.26%) EFT
3 1 (5.26%) Equities
3 1 (5.26%) Replication
3 1 (5.26%) VSAM
Operating Systems
1 9 (47.37%) Unix
2 8 (42.11%) Linux
3 5 (26.32%) Windows
4 4 (21.05%) CoreOS
5 1 (5.26%) Red Hat Enterprise Linux
5 1 (5.26%) Windows Server
Processes & Methodologies
1 5 (26.32%) Change Data Capture
1 5 (26.32%) Performance Monitoring
1 5 (26.32%) User Acceptance Testing
2 4 (21.05%) DevOps
2 4 (21.05%) Infrastructure as Code
3 3 (15.79%) Agile Software Development
3 3 (15.79%) Data Sharing
3 3 (15.79%) Infrastructure Engineering
3 3 (15.79%) Problem-Solving
4 2 (10.53%) Configuration Management
4 2 (10.53%) Continuous Integration
4 2 (10.53%) Disaster Recovery
4 2 (10.53%) Disruptive Innovation
4 2 (10.53%) Stakeholder Management
4 2 (10.53%) Test Automation
5 1 (5.26%) Customer Requirements
5 1 (5.26%) Data Security
5 1 (5.26%) Migration
5 1 (5.26%) Process Management
5 1 (5.26%) Project Management
Programming Languages
1 6 (31.58%) PowerShell
1 6 (31.58%) SQL
2 3 (15.79%) JCL
2 3 (15.79%) REXX
3 2 (10.53%) Java
4 1 (5.26%) C
4 1 (5.26%) COBOL
4 1 (5.26%) HLASM
Qualifications
1 1 (5.26%) Computer Science Degree
1 1 (5.26%) Degree
Quality Assurance & Compliance
1 6 (31.58%) QA
2 1 (5.26%) Dodd-Frank
2 1 (5.26%) EMIR
2 1 (5.26%) MiFID
System Software
1 4 (21.05%) Docker
2 3 (15.79%) RACF
2 3 (15.79%) Time Sharing Option
3 1 (5.26%) Active Directory
Systems Management
1 4 (21.05%) Ansible
1 4 (21.05%) Kubernetes
1 4 (21.05%) Opscode Chef
1 4 (21.05%) Puppet
1 4 (21.05%) Terraform
2 3 (15.79%) Tivoli NetView
2 3 (15.79%) zSecure
3 2 (10.53%) Istio
4 1 (5.26%) Failover Clustering
4 1 (5.26%) OMEGAMON
Vendors
1 8 (42.11%) IBM
2 7 (36.84%) Oracle
3 5 (26.32%) Sybase
4 3 (15.79%) SAP
5 2 (10.53%) Google
6 1 (5.26%) Red Hat