Period
to 14 December 2019

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 14 December 2019 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
14 Dec 2019
Same period 2018 Same period 2017
Rank 996 1108 1188
Rank change year-on-year +112 +80 -49
Permanent jobs citing zOS 50 47 26
As % of all permanent IT jobs advertised in the UK 0.038% 0.030% 0.014%
As % of the Operating Systems category 0.17% 0.13% 0.059%
Number of salaries quoted 33 30 25
UK median annual salary £65,000 £55,000 £37,500
Median salary % change year-on-year +18.18% +46.67% -28.57%
10th Percentile £48,500 £36,250 £32,500
90th Percentile £88,750 £87,750 £110,000
UK excluding London median annual salary £62,500 £52,500 £37,500
% change year-on-year +19.05% +40.00% -21.05%

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 29,935 36,850 43,961
As % of all permanent IT jobs advertised in the UK 22.69% 23.13% 24.47%
Number of salaries quoted 23,862 29,582 35,557
UK median annual salary £45,000 £47,500 £45,000
Median salary % change year-on-year -5.26% +5.56% -
10th Percentile £25,000 £25,500 £25,000
90th Percentile £80,000 £78,750 £75,000
UK excluding London median annual salary £40,500 £41,500 £40,000
% change year-on-year -2.41% +3.75% -

zOS
Job Vacancy Trend

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

Job vacancy trend for zOS in the UK

zOS
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing zOS.

Salary trend for zOS in the UK

zOS
Salary Histogram

The salary distribution of IT jobs citing zOS over the 6 months to 14 December 2019.

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 14 December 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +99 50 £65,000 +18.18% 4
London +92 29 £65,000 -1.52% 1
UK excluding London +70 21 £62,500 +19.05% 4
South East +40 12 £62,500 +13.64% 2
South West - 6 £51,786 -
North of England +28 2 £55,000 +46.67% 1
Yorkshire +11 1 £55,000 +46.67% 1
Midlands - 1 £55,000 -
North West - 1 - -
West Midlands - 1 £55,000 -

For the 6 months to 14 December 2019, 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 38 (76.00%) Mainframe
2 36 (72.00%) IBM
3 33 (66.00%) Linux
4 24 (48.00%) DevOps
5 23 (46.00%) Java
6 22 (44.00%) Banking
7 21 (42.00%) Azure
8 20 (40.00%) AWS
8 20 (40.00%) Test Automation
8 20 (40.00%) Jenkins
8 20 (40.00%) Docker
8 20 (40.00%) Continuous Integration
9 19 (38.00%) Agile Software Development
10 16 (32.00%) JavaScript
11 15 (30.00%) PVCS
11 15 (30.00%) Ant
11 15 (30.00%) ClearCase
11 15 (30.00%) Configuration Management
11 15 (30.00%) Selenium
11 15 (30.00%) TeamCity
11 15 (30.00%) Teradata
11 15 (30.00%) Maven
11 15 (30.00%) SonarQube
11 15 (30.00%) IBM InfoSphere
11 15 (30.00%) Static Code Analysis
11 15 (30.00%) GitHub
11 15 (30.00%) Hadoop
12 14 (28.00%) Scrum
12 14 (28.00%) Oracle
13 13 (26.00%) WebSphere

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 13 (26.00%) WebSphere
2 12 (24.00%) WebSphere Application Server
3 11 (22.00%) MQSeries
4 6 (12.00%) CICS
5 2 (4.00%) Confluence
6 1 (2.00%) IBM HTTP Server
6 1 (2.00%) Oracle SOA Suite
6 1 (2.00%) SAS
6 1 (2.00%) Tomcat
Cloud Services
1 21 (42.00%) Azure
2 20 (40.00%) AWS
3 15 (30.00%) GitHub
Communications & Networking
1 5 (10.00%) Internet
2 1 (2.00%) Firewall
2 1 (2.00%) HTTP
2 1 (2.00%) SAN
Database & Business Intelligence
1 15 (30.00%) Hadoop
1 15 (30.00%) IBM InfoSphere
2 12 (24.00%) Oracle Database
3 10 (20.00%) DB2
4 2 (4.00%) SQL Server
5 1 (2.00%) BusinessObjects
5 1 (2.00%) Data Warehouse
Development Applications
1 20 (40.00%) Jenkins
2 15 (30.00%) Ant
2 15 (30.00%) ClearCase
2 15 (30.00%) Maven
2 15 (30.00%) PVCS
2 15 (30.00%) Selenium
2 15 (30.00%) SonarQube
2 15 (30.00%) TeamCity
3 12 (24.00%) JIRA
4 11 (22.00%) IBM UrbanCode
5 5 (10.00%) Bitbucket
5 5 (10.00%) Gerrit
5 5 (10.00%) Git (software)
5 5 (10.00%) GitLab
5 5 (10.00%) Sonatype Nexus
5 5 (10.00%) Team Foundation Server
5 5 (10.00%) Visual Studio Team System
6 1 (2.00%) Eclipse
6 1 (2.00%) JUnit
6 1 (2.00%) Subversion
General
1 22 (44.00%) Banking
2 12 (24.00%) Finance
3 5 (10.00%) Retail Banking
4 3 (6.00%) Advertising
4 3 (6.00%) Games
5 1 (2.00%) Telecoms
Job Titles
1 19 (38.00%) DevOps Engineer
2 11 (22.00%) Mainframe Programmer
2 11 (22.00%) Programmer
3 9 (18.00%) Mainframe Systems Programmer
3 9 (18.00%) Systems Programmer
4 6 (12.00%) Technical Leader
5 5 (10.00%) z/OS Systems Programmer
6 4 (8.00%) AWS DevOps
6 4 (8.00%) AWS DevOps Engineer
6 4 (8.00%) AWS Engineer
6 4 (8.00%) Cloud Engineer
7 3 (6.00%) Lead DevOps
7 3 (6.00%) Lead DevOps Engineer
7 3 (6.00%) Mainframe Support
7 3 (6.00%) Onboarding Engineer
7 3 (6.00%) Support Engineer
8 2 (4.00%) Administrator
8 2 (4.00%) Architect
8 2 (4.00%) Mainframe Architect
8 2 (4.00%) Storage Engineer
Libraries, Frameworks & Software Standards
1 13 (26.00%) Apache Flex
2 12 (24.00%) WebSphere MQ
3 5 (10.00%) .NET
4 3 (6.00%) Middleware
5 2 (4.00%) LDAP
6 1 (2.00%) CSS
6 1 (2.00%) HTML
6 1 (2.00%) ISPF
6 1 (2.00%) J2EE
6 1 (2.00%) JDBC
6 1 (2.00%) jQuery
6 1 (2.00%) JSON
6 1 (2.00%) OAuth
6 1 (2.00%) OAuth2
6 1 (2.00%) SAML
6 1 (2.00%) Spring
6 1 (2.00%) Spring Boot
6 1 (2.00%) Twitter Bootstrap
6 1 (2.00%) Web Services
6 1 (2.00%) XML
Miscellaneous
1 38 (76.00%) Mainframe
2 6 (12.00%) Replication
2 6 (12.00%) User Experience
3 4 (8.00%) Analytical Skills
3 4 (8.00%) Data Centre
4 3 (6.00%) Online Banking
5 2 (4.00%) Enterprise Software
5 2 (4.00%) Management Information System
6 1 (2.00%) Clustering
Operating Systems
1 33 (66.00%) Linux
2 9 (18.00%) Windows
3 7 (14.00%) Unix
4 5 (10.00%) CoreOS
5 2 (4.00%) Red Hat Enterprise Linux
6 1 (2.00%) AIX
6 1 (2.00%) Windows 10
6 1 (2.00%) Windows Server 2003
6 1 (2.00%) Windows Server 2008
6 1 (2.00%) Windows Server 2012
Processes & Methodologies
1 24 (48.00%) DevOps
2 20 (40.00%) Continuous Integration
2 20 (40.00%) Test Automation
3 19 (38.00%) Agile Software Development
4 15 (30.00%) Configuration Management
4 15 (30.00%) Static Code Analysis
5 14 (28.00%) Scrum
6 12 (24.00%) BDD
7 11 (22.00%) Capacity Planning
7 11 (22.00%) Continuous Delivery
7 11 (22.00%) Master Data Management
7 11 (22.00%) Software Engineering
8 10 (20.00%) Kanban
9 9 (18.00%) Service Management
9 9 (18.00%) Thought Leadership
10 8 (16.00%) Problem Management
11 7 (14.00%) Continuous Improvement
11 7 (14.00%) ITIL
11 7 (14.00%) Mentoring
11 7 (14.00%) Service Delivery
Programming Languages
1 23 (46.00%) Java
2 16 (32.00%) JavaScript
3 9 (18.00%) REXX
4 4 (8.00%) JCL
5 2 (4.00%) C
5 2 (4.00%) COBOL
5 2 (4.00%) SQL
6 1 (2.00%) Assembly Language
6 1 (2.00%) C++
6 1 (2.00%) Perl
6 1 (2.00%) PL/1
Qualifications
1 6 (12.00%) ITIL Foundation Certificate
2 2 (4.00%) Degree
3 1 (2.00%) Master's Degree
3 1 (2.00%) PRINCE2 Certification
3 1 (2.00%) SAFe Agilist
Quality Assurance & Compliance
1 3 (6.00%) QA
2 2 (4.00%) PMO
3 1 (2.00%) SLA
System Software
1 20 (40.00%) Docker
2 9 (18.00%) Virtual Machines
3 8 (16.00%) Job Entry Subsystem
3 8 (16.00%) RACF
4 2 (4.00%) Microcode
5 1 (2.00%) Active Directory
5 1 (2.00%) OpenAM
5 1 (2.00%) Time Sharing Option
Systems Management
1 5 (10.00%) Ansible
1 5 (10.00%) Kubernetes
1 5 (10.00%) MAINVIEW
1 5 (10.00%) Opscode Chef
1 5 (10.00%) Puppet
1 5 (10.00%) Rancher
1 5 (10.00%) Terraform
2 1 (2.00%) BMC PATROL
2 1 (2.00%) OMEGAMON
Vendors
1 36 (72.00%) IBM
2 15 (30.00%) Teradata
3 14 (28.00%) Oracle
4 8 (16.00%) CA
5 7 (14.00%) Red Hat
6 5 (10.00%) BMC
6 5 (10.00%) Google
7 2 (4.00%) Brocade
7 2 (4.00%) EMC
8 1 (2.00%) Ab Initio
8 1 (2.00%) AppDynamics
8 1 (2.00%) F5
8 1 (2.00%) SAP
8 1 (2.00%) Splunk