Period
to

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 12 August 2022 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
12 Aug 2022
Same period 2021 Same period 2020
Rank 1171 986 775
Rank change year-on-year -185 -211 +289
Permanent jobs citing zOS 41 32 16
As % of all permanent jobs advertised in the UK 0.024% 0.028% 0.025%
As % of the Operating Systems category 0.14% 0.15% 0.12%
Number of salaries quoted 34 27 12
10th Percentile £42,500 £43,750 £45,750
25th Percentile £45,000 £50,000 £52,500
Median annual salary (50th Percentile) £59,526 £62,000 £92,500
Median % change year-on-year -3.99% -32.97% +48.00%
75th Percentile £65,313 £73,250 £104,688
90th Percentile £71,250 £90,000 £111,250
UK excluding London median annual salary £57,931 £60,000 £55,000
% change year-on-year -3.45% +9.09% +1.85%

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 29,714 20,808 13,485
As % of all permanent IT jobs advertised in the UK 17.59% 18.19% 21.30%
Number of salaries quoted 16,043 15,087 11,112
10th Percentile £26,737 £26,500 £27,633
25th Percentile £35,960 £36,250 £36,250
Median annual salary (50th Percentile) £52,500 £50,000 £50,000
Median % change year-on-year +5.00% - +8.70%
75th Percentile £71,250 £67,500 £66,250
90th Percentile £87,500 £85,000 £80,000
UK excluding London median annual salary £45,000 £45,000 £45,000
% change year-on-year - - +8.43%

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 12 August 2022.

Salary histogram for zOS in the UK

zOS
Top 10 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 12 August 2022. 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
Jobs
Work from Home -223 35 £57,931 -3.45%
UK excluding London -75 34 £57,931 -3.45%
England -200 22 £59,526 -11.81% 1
Scotland -36 17 £57,931 -6.56%
North of England -63 9 £59,526 +19.05%
Yorkshire - 9 £59,526 -
South East -55 4 £45,000 -40.00%
Midlands -63 4 £50,750 -30.00%
London -205 4 £71,250 -16.18% 1
East Midlands - 4 £50,750 -

For the 6 months to 12 August 2022, 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 27 (65.85%) Agile
2 25 (60.98%) Mainframe
3 22 (53.66%) Unix
3 22 (53.66%) Linux
4 21 (51.22%) Windows
5 20 (48.78%) Banking
6 19 (46.34%) DevOps
7 18 (43.90%) Problem-Solving
7 18 (43.90%) DB2
8 15 (36.59%) IBM
8 15 (36.59%) JCL
8 15 (36.59%) Jenkins
9 14 (34.15%) Azure
10 12 (29.27%) Docker
10 12 (29.27%) Kubernetes
10 12 (29.27%) Azure DevOps
10 12 (29.27%) Finance
10 12 (29.27%) Scrum
11 11 (26.83%) Continuous Integration
11 11 (26.83%) Python
11 11 (26.83%) Collaborative Working
12 10 (24.39%) Site Reliability Engineering
12 10 (24.39%) Identity Access Management
12 10 (24.39%) Terraform
12 10 (24.39%) Public Cloud
12 10 (24.39%) Bash
12 10 (24.39%) Infrastructure as Code
12 10 (24.39%) Social Skills
12 10 (24.39%) Containerisation
12 10 (24.39%) IBM Mainframe

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 9 (21.95%) CICS
2 2 (4.88%) Cloud Foundry
2 2 (4.88%) WebSphere
3 1 (2.44%) Apache Spark
3 1 (2.44%) Jupyter
3 1 (2.44%) SharePoint
Applications
1 1 (2.44%) Microsoft PowerPoint
Cloud Services
1 14 (34.15%) Azure
2 12 (29.27%) Azure DevOps
3 2 (4.88%) AWS
Communications & Networking
1 7 (17.07%) Internet
2 3 (7.32%) SSL
3 2 (4.88%) Firewall
3 2 (4.88%) HTTP
3 2 (4.88%) HTTPS
3 2 (4.88%) Intrusion Detection
3 2 (4.88%) IPsec
3 2 (4.88%) Kerberos
3 2 (4.88%) LAN
3 2 (4.88%) Network Security
3 2 (4.88%) NNTP
3 2 (4.88%) TCP/IP
3 2 (4.88%) WAN
3 2 (4.88%) Wireless
3 2 (4.88%) X.509
Database & Business Intelligence
1 18 (43.90%) DB2
2 4 (9.76%) SQL Server
3 3 (7.32%) Adabas
4 2 (4.88%) RDBMS
4 2 (4.88%) Relational Database
Development Applications
1 15 (36.59%) Jenkins
2 5 (12.20%) Git (software)
2 5 (12.20%) Postman
2 5 (12.20%) SoapUI
2 5 (12.20%) Visual Studio Code
3 2 (4.88%) Team Foundation Server
General
1 20 (48.78%) Banking
2 12 (29.27%) Finance
3 10 (24.39%) Social Skills
4 8 (19.51%) Retail
5 4 (9.76%) Analytical Skills
5 4 (9.76%) Organisational Skills
6 2 (4.88%) Law
7 1 (2.44%) Inclusion and Diversity
Job Titles
1 10 (24.39%) Site Engineer
1 10 (24.39%) Site Reliability Engineer
2 4 (9.76%) Analyst
2 4 (9.76%) Technical Specialist
3 3 (7.32%) Mainframe Analyst
3 3 (7.32%) Project Manager
3 3 (7.32%) Support Engineer
3 3 (7.32%) Technical Support
4 2 (4.88%) Consultant
4 2 (4.88%) Development Manager
4 2 (4.88%) Development Project Manager
4 2 (4.88%) Infrastructure Engineer
4 2 (4.88%) Mainframe Project Manager
4 2 (4.88%) Mainframe Test Analyst
4 2 (4.88%) Senior Infrastructure Engineer
4 2 (4.88%) Senior Security Engineer
4 2 (4.88%) Software Support Engineer
4 2 (4.88%) Technical Engineer
4 2 (4.88%) Technical Support Engineer
4 2 (4.88%) Test Analyst
Libraries, Frameworks & Software Standards
1 10 (24.39%) ISPF
2 5 (12.20%) JSON
2 5 (12.20%) SOAP
2 5 (12.20%) Web Services
2 5 (12.20%) XML
3 3 (7.32%) Middleware
4 2 (4.88%) WebSphere MQ
Miscellaneous
1 25 (60.98%) Mainframe
2 10 (24.39%) IBM Mainframe
2 10 (24.39%) Public Cloud
3 2 (4.88%) Blog
3 2 (4.88%) Data Centre
3 2 (4.88%) Legacy Systems
3 2 (4.88%) Management Information System
3 2 (4.88%) PKI
3 2 (4.88%) VSAM
4 1 (2.44%) Clustering
4 1 (2.44%) Hybrid Cloud
Operating Systems
1 22 (53.66%) Linux
1 22 (53.66%) Unix
2 21 (51.22%) Windows
3 4 (9.76%) MVS
4 2 (4.88%) AIX
5 1 (2.44%) Red Hat Enterprise Linux
5 1 (2.44%) Solaris
5 1 (2.44%) Windows 10
5 1 (2.44%) Windows 7
Processes & Methodologies
1 27 (65.85%) Agile
2 19 (46.34%) DevOps
3 18 (43.90%) Problem-Solving
4 12 (29.27%) Scrum
5 11 (26.83%) Collaborative Working
5 11 (26.83%) Continuous Integration
6 10 (24.39%) Containerisation
6 10 (24.39%) Identity Access Management
6 10 (24.39%) Infrastructure as Code
6 10 (24.39%) Site Reliability Engineering
7 5 (12.20%) API Testing
7 5 (12.20%) Business Strategy
7 5 (12.20%) Coaching
7 5 (12.20%) Community of Practice
7 5 (12.20%) Incident Management
7 5 (12.20%) Major Incident Management
7 5 (12.20%) SDLC
7 5 (12.20%) Software Engineering
7 5 (12.20%) Supplier Management
7 5 (12.20%) User-Centered Design (UCD)
Programming Languages
1 15 (36.59%) JCL
2 11 (26.83%) Python
3 10 (24.39%) Bash
3 10 (24.39%) Groovy
3 10 (24.39%) PowerShell
4 9 (21.95%) COBOL
5 7 (17.07%) REXX
6 5 (12.20%) Java
7 4 (9.76%) Perl
8 2 (4.88%) Assembly Language
8 2 (4.88%) JavaScript
8 2 (4.88%) SQL
9 1 (2.44%) Natural
Qualifications
1 4 (9.76%) Degree
2 3 (7.32%) Computer Science Degree
3 2 (4.88%) CISM
3 2 (4.88%) CISSP
3 2 (4.88%) ISEB
3 2 (4.88%) ISTQB
3 2 (4.88%) SANS
4 1 (2.44%) Master's Degree
Quality Assurance & Compliance
1 7 (17.07%) Sarbanes-Oxley
2 6 (14.63%) SLA
3 5 (12.20%) COBIT
4 2 (4.88%) GDPR
4 2 (4.88%) HIPAA
4 2 (4.88%) ISO/IEC 27001
4 2 (4.88%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
4 2 (4.88%) NIST
System Software
1 12 (29.27%) Docker
2 5 (12.20%) Time Sharing Option
3 4 (9.76%) ACF2
3 4 (9.76%) RACF
4 2 (4.88%) Active Directory
Systems Management
1 12 (29.27%) Kubernetes
2 10 (24.39%) Terraform
3 5 (12.20%) CA Endevor
3 5 (12.20%) Control-M
3 5 (12.20%) MAINVIEW
4 2 (4.88%) EnCase
5 1 (2.44%) OMEGAMON
Vendors
1 15 (36.59%) IBM
2 5 (12.20%) BMC
3 4 (9.76%) Oracle
4 2 (4.88%) Apple
4 2 (4.88%) Microsoft
4 2 (4.88%) Qualys
5 1 (2.44%) Dynatrace
5 1 (2.44%) Red Hat
5 1 (2.44%) ServiceNow
5 1 (2.44%) Splunk