Period
to 26 September 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 26 September 2021 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
26 Sep 2021
Same period 2020 Same period 2019
Rank 982 685 1049
Rank change year-on-year -297 +364 +112
Permanent jobs citing zOS 39 13 47
As % of all permanent jobs advertised in the UK 0.032% 0.027% 0.033%
As % of the Operating Systems category 0.18% 0.13% 0.15%
Number of salaries quoted 35 10 30
10th Percentile £50,000 £45,000 £46,120
25th Percentile £60,000 £52,500 £61,250
Median annual salary (50th Percentile) £67,500 £83,750 £65,000
Median % change year-on-year -19.40% +28.85% +18.18%
75th Percentile £85,000 £111,250 "
90th Percentile " " £102,500
UK excluding London median annual salary £62,000 £50,000 £62,500
% change year-on-year +24.00% -20.00% +13.64%

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 21,373 10,348 32,297
As % of all permanent IT jobs advertised in the UK 17.59% 21.46% 22.99%
Number of salaries quoted 15,111 8,646 25,794
10th Percentile £26,250 £29,000 £25,000
25th Percentile £35,000 £37,000 £32,250
Median annual salary (50th Percentile) £50,000 £50,000 £45,000
Median % change year-on-year - +11.11% -5.26%
75th Percentile £67,500 £67,500 £65,000
90th Percentile £85,000 £80,000 £80,000
UK excluding London median annual salary £45,000 £45,000 £41,000
% change year-on-year - +9.76% +1.23%

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 26 September 2021.

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 26 September 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 -297 29 £85,000 -17.07% 3
Work from Home -269 25 £85,000 +54.55%
UK excluding London -237 23 £62,000 +24.00% 3
London -222 13 £85,000 -17.07% 1
North West -83 12 £85,000 +54.55% 1
North of England -119 12 £85,000 +54.55% 1
Scotland -92 8 £62,000 - 1
West Midlands -96 2 £72,500 -
Midlands -122 2 £72,500 -
South East -170 1 £75,000 +66.67% 1

For the 6 months to 26 September 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 27 (69.23%) Windows
2 25 (64.10%) Mainframe
3 24 (61.54%) Test Automation
4 21 (53.85%) IBM
4 21 (53.85%) COBOL
5 19 (48.72%) SDLC
6 17 (43.59%) Virtual Machines
6 17 (43.59%) Self-Motivation
6 17 (43.59%) Assembly Language
6 17 (43.59%) Test Strategy
7 13 (33.33%) Linux
8 12 (30.77%) Unix
8 12 (30.77%) Oracle
9 11 (28.21%) Agile Software Development
9 11 (28.21%) Banking
10 9 (23.08%) Middleware
10 9 (23.08%) Docker
10 9 (23.08%) DevOps
10 9 (23.08%) Kubernetes
11 8 (20.51%) Problem-Solving
11 8 (20.51%) Opscode Chef
11 8 (20.51%) Jenkins
11 8 (20.51%) Azure
12 7 (17.95%) Puppet
12 7 (17.95%) Gerrit
12 7 (17.95%) Bitbucket
12 7 (17.95%) Git (software)
12 7 (17.95%) Team Foundation Server
12 7 (17.95%) Visual Studio Team System
12 7 (17.95%) WebLogic

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 7 (17.95%) WebLogic
2 5 (12.82%) CICS
3 2 (5.13%) WebSphere
4 1 (2.56%) SAS
4 1 (2.56%) WebSphere Application Server
Cloud Services
1 8 (20.51%) Azure
2 7 (17.95%) GCP
3 6 (15.38%) AWS
4 4 (10.26%) Power Platform
5 2 (5.13%) Apigee
5 2 (5.13%) PaaS
5 2 (5.13%) SaaS
6 1 (2.56%) Amazon CloudWatch
6 1 (2.56%) IBM Cloud
6 1 (2.56%) SoftLayer
Communications & Networking
1 1 (2.56%) Firewall
1 1 (2.56%) OSPF
1 1 (2.56%) SAN
1 1 (2.56%) SSL
1 1 (2.56%) TCP/IP
Database & Business Intelligence
1 5 (12.82%) DB2
1 5 (12.82%) SQL Server
2 4 (10.26%) Amazon RDS
2 4 (10.26%) MySQL
2 4 (10.26%) Power BI
2 4 (10.26%) SQL Server 2005
2 4 (10.26%) SQL Server 2019
2 4 (10.26%) SQL Server Integration Services
3 2 (5.13%) DataStage
3 2 (5.13%) Relational Database
4 1 (2.56%) BusinessObjects
4 1 (2.56%) Data Warehouse
Development Applications
1 8 (20.51%) Jenkins
2 7 (17.95%) Bitbucket
2 7 (17.95%) Gerrit
2 7 (17.95%) Git (software)
2 7 (17.95%) GitLab
2 7 (17.95%) Sonatype Nexus
2 7 (17.95%) Team Foundation Server
2 7 (17.95%) Visual Studio Team System
3 4 (10.26%) Visual Studio
4 1 (2.56%) Fiddler
4 1 (2.56%) Gatling
4 1 (2.56%) Introscope
4 1 (2.56%) JIRA
4 1 (2.56%) LoadRunner
4 1 (2.56%) LoadUI
4 1 (2.56%) SilkPerformer
4 1 (2.56%) SoapUI
General
1 11 (28.21%) Banking
2 3 (7.69%) Analytical Skills
3 1 (2.56%) Finance
3 1 (2.56%) Retail Banking
3 1 (2.56%) Social Skills
Job Titles
1 7 (17.95%) DevOps Engineer
2 5 (12.82%) Senior DevOps
2 5 (12.82%) Senior DevOps Engineer
3 4 (10.26%) DBA
3 4 (10.26%) SQL DBA
4 3 (7.69%) Architect
4 3 (7.69%) Assembler Developer
4 3 (7.69%) Developer
4 3 (7.69%) IBM Assembler Developer
4 3 (7.69%) Programmer
4 3 (7.69%) Systems Programmer
4 3 (7.69%) z/OS Systems Programmer
5 2 (5.13%) CICS Programmer
5 2 (5.13%) CICS Systems Programmer
5 2 (5.13%) Lead Architect
5 2 (5.13%) Lead Solutions Architect
5 2 (5.13%) Linux Engineer
5 2 (5.13%) Mainframe Programmer
5 2 (5.13%) Mainframe Systems Programmer
5 2 (5.13%) z/OS Engineer
Libraries, Frameworks & Software Standards
1 9 (23.08%) Middleware
2 2 (5.13%) .NET
2 2 (5.13%) .NET Core
2 2 (5.13%) .NET Framework
3 1 (2.56%) IBM Integration Bus
3 1 (2.56%) Kafka
3 1 (2.56%) REST
3 1 (2.56%) SOAP
3 1 (2.56%) Swagger
3 1 (2.56%) WADL
3 1 (2.56%) Web Services
3 1 (2.56%) WebSphere MQ
3 1 (2.56%) WSDL
Miscellaneous
1 25 (64.10%) Mainframe
2 17 (43.59%) Self-Motivation
3 7 (17.95%) Cloud Native
3 7 (17.95%) Private Cloud
4 4 (10.26%) Clustering
5 2 (5.13%) Management Information System
6 1 (2.56%) VSAM
Operating Systems
1 27 (69.23%) Windows
2 13 (33.33%) Linux
3 12 (30.77%) Unix
4 7 (17.95%) CoreOS
5 2 (5.13%) Red Hat Enterprise Linux
6 1 (2.56%) AIX
Processes & Methodologies
1 24 (61.54%) Test Automation
2 19 (48.72%) SDLC
3 17 (43.59%) Test Strategy
4 11 (28.21%) Agile Software Development
5 9 (23.08%) DevOps
6 8 (20.51%) Problem-Solving
7 7 (17.95%) Infrastructure as Code
8 4 (10.26%) Change Data Capture
8 4 (10.26%) Performance Monitoring
8 4 (10.26%) User Acceptance Testing
9 2 (5.13%) Computer Science
9 2 (5.13%) Disaster Recovery
9 2 (5.13%) High Availability
9 2 (5.13%) Information Management
9 2 (5.13%) ITIL
9 2 (5.13%) Migration
9 2 (5.13%) MVC
9 2 (5.13%) PRINCE2
9 2 (5.13%) Software Engineering
9 2 (5.13%) Workflow
Programming Languages
1 21 (53.85%) COBOL
2 17 (43.59%) Assembly Language
3 6 (15.38%) SQL
4 4 (10.26%) PowerShell
4 4 (10.26%) REXX
5 3 (7.69%) Java
5 3 (7.69%) Scala
6 2 (5.13%) C
6 2 (5.13%) HLASM
7 1 (2.56%) Shell Script
Qualifications
1 2 (5.13%) Computer Science Degree
1 2 (5.13%) Degree
Quality Assurance & Compliance
1 6 (15.38%) QA
2 2 (5.13%) PCI DSS
System Software
1 17 (43.59%) Virtual Machines
2 9 (23.08%) Docker
Systems Management
1 9 (23.08%) Kubernetes
2 8 (20.51%) Opscode Chef
3 7 (17.95%) Ansible
3 7 (17.95%) Istio
3 7 (17.95%) Puppet
3 7 (17.95%) Terraform
4 1 (2.56%) CA Wily
4 1 (2.56%) Grafana
4 1 (2.56%) OMEGAMON
Vendors
1 21 (53.85%) IBM
2 12 (30.77%) Oracle
3 4 (10.26%) Sybase
4 2 (5.13%) Cloudera
4 2 (5.13%) Red Hat
5 1 (2.56%) Ab Initio
5 1 (2.56%) Splunk