Period
to 21 May 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 21 May 2019 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
21 May 2019
Same period 2018 Same period 2017
Rank 1042 1176 1144
Rank change year-on-year +134 -32 +64
Permanent jobs citing zOS 56 30 31
As % of all permanent IT jobs advertised in the UK 0.039% 0.017% 0.018%
As % of the Operating Systems category 0.17% 0.074% 0.076%
Number of salaries quoted 46 22 18
UK median annual salary £40,000 £53,750 £43,500
Median salary % change year-on-year -25.58% +23.56% +12.89%
10th Percentile £31,250 £47,050 £26,250
90th Percentile £101,250 £94,250 £73,750
UK excluding London median annual salary £40,000 £52,500 £39,750
% change year-on-year -23.81% +32.08% +3.16%

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 33,123 40,380 40,974
As % of all permanent IT jobs advertised in the UK 22.98% 23.51% 24.27%
Number of salaries quoted 26,319 32,719 34,331
UK median annual salary £47,500 £46,000 £45,000
Median salary % change year-on-year +3.26% +2.22% +4.65%
10th Percentile £25,750 £25,500 £25,000
90th Percentile £78,750 £76,250 £73,750
UK excluding London median annual salary £42,000 £40,000 £40,000
% change year-on-year +5.00% - -

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 21 May 2019.

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 21 May 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
UK excluding London +100 55 £40,000 -23.81%
England +119 52 £42,500 -22.73%
South East +47 36 £37,500 -30.23%
East of England - 8 £54,000 -
North of England +37 7 £37,500 -
Yorkshire - 7 £37,500 -
Scotland +10 4 £40,000 -18.37%
London +92 1 £100,000 +5.26%

For the 6 months to 21 May 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 37 (66.07%) Linux
2 31 (55.36%) Windows
3 30 (53.57%) Problem-Solving
4 26 (46.43%) Unix
5 25 (44.64%) Mainframe
6 20 (35.71%) IBM
7 15 (26.79%) Assembly Language
8 14 (25.00%) Finance
9 12 (21.43%) Banking
9 12 (21.43%) DB2
9 12 (21.43%) COBOL
10 11 (19.64%) Java
11 8 (14.29%) CICS
12 7 (12.50%) PL/1
12 7 (12.50%) Degree
12 7 (12.50%) Windows Server
13 6 (10.71%) Master's Degree
13 6 (10.71%) Analytical Skills
13 6 (10.71%) Incident Management
13 6 (10.71%) Wealth Management
13 6 (10.71%) Retail
13 6 (10.71%) Open Source
13 6 (10.71%) Capacity Planning
13 6 (10.71%) ATM
13 6 (10.71%) C
13 6 (10.71%) C++
13 6 (10.71%) ITIL
14 5 (8.93%) SQL
14 5 (8.93%) JCL
14 5 (8.93%) Service Management

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 8 (14.29%) CICS
2 2 (3.57%) SAS
Cloud Services
1 4 (7.14%) GitHub
2 1 (1.79%) Amazon AWS
2 1 (1.79%) Microsoft Azure
Communications & Networking
1 6 (10.71%) ATM
2 2 (3.57%) SSL
3 1 (1.79%) SMS
3 1 (1.79%) TCP/IP
Database & Business Intelligence
1 12 (21.43%) DB2
Development Applications
1 5 (8.93%) GitLab
2 4 (7.14%) Cucumber
2 4 (7.14%) FitNesse
2 4 (7.14%) Hamcrest
2 4 (7.14%) HtmlUnit
2 4 (7.14%) JBehave
2 4 (7.14%) Jenkins
2 4 (7.14%) JIRA
2 4 (7.14%) JMeter
2 4 (7.14%) JUnit
2 4 (7.14%) Maven
2 4 (7.14%) Mockito
2 4 (7.14%) Selenium
2 4 (7.14%) SonarQube
2 4 (7.14%) Sonatype Nexus
2 4 (7.14%) Subversion
2 4 (7.14%) TestNG
2 4 (7.14%) WebDriver
3 1 (1.79%) Gerrit
3 1 (1.79%) Git (software)
General
1 14 (25.00%) Finance
2 12 (21.43%) Banking
3 6 (10.71%) Retail
4 4 (7.14%) Retail Banking
5 1 (1.79%) Marketing
Job Titles
1 15 (26.79%) Analyst
1 15 (26.79%) Support Analyst
2 13 (23.21%) IT Analyst
2 13 (23.21%) IT Support
2 13 (23.21%) IT Support Analyst
3 8 (14.29%) Applications Support
4 7 (12.50%) Applications Support Analyst
4 7 (12.50%) Systems Engineer
5 6 (10.71%) Developer
5 6 (10.71%) Mainframe Developer
5 6 (10.71%) Mainframe Support
6 5 (8.93%) Linux Support
7 4 (7.14%) Administrator
7 4 (7.14%) Assembler Developer
7 4 (7.14%) Mainframe Assembler Developer
7 4 (7.14%) Programmer
7 4 (7.14%) Support Engineer
7 4 (7.14%) Systems Programmer
7 4 (7.14%) Test Automation Engineer
7 4 (7.14%) Test Engineer
Libraries, Frameworks & Software Standards
1 5 (8.93%) ISPF
2 4 (7.14%) CSS
2 4 (7.14%) HTML
2 4 (7.14%) REST
2 4 (7.14%) SOAP
2 4 (7.14%) Web Services
3 1 (1.79%) .NET
Miscellaneous
1 25 (44.64%) Mainframe
2 6 (10.71%) Analytical Skills
3 5 (8.93%) IBM Mainframe
4 4 (7.14%) Greenfield Project
4 4 (7.14%) Mobile App
4 4 (7.14%) User Experience
5 2 (3.57%) Clustering
5 2 (3.57%) Data Centre
5 2 (3.57%) Fintech
6 1 (1.79%) Enterprise Software
6 1 (1.79%) Self-Motivation
6 1 (1.79%) VSAM
Operating Systems
1 37 (66.07%) Linux
2 31 (55.36%) Windows
3 26 (46.43%) Unix
4 7 (12.50%) Windows Server
5 4 (7.14%) Android
5 4 (7.14%) Mac OS
6 2 (3.57%) Red Hat Enterprise Linux
7 1 (1.79%) CoreOS
Processes & Methodologies
1 30 (53.57%) Problem-Solving
2 6 (10.71%) Capacity Planning
2 6 (10.71%) Incident Management
2 6 (10.71%) ITIL
2 6 (10.71%) Open Source
2 6 (10.71%) Wealth Management
3 5 (8.93%) Agile Software Development
3 5 (8.93%) Change Management
3 5 (8.93%) DevOps
3 5 (8.93%) Mentoring
3 5 (8.93%) Problem Management
3 5 (8.93%) Service Management
4 4 (7.14%) API Testing
4 4 (7.14%) ATDD
4 4 (7.14%) Bug Management
4 4 (7.14%) Continuous Improvement
4 4 (7.14%) Demand Management
4 4 (7.14%) Microservices
4 4 (7.14%) Regression Testing
4 4 (7.14%) Test Strategy
Programming Languages
1 15 (26.79%) Assembly Language
2 12 (21.43%) COBOL
3 11 (19.64%) Java
4 7 (12.50%) PL/1
5 6 (10.71%) C
5 6 (10.71%) C++
6 5 (8.93%) JCL
6 5 (8.93%) SQL
7 4 (7.14%) JavaScript
8 2 (3.57%) CLIST
8 2 (3.57%) REXX
9 1 (1.79%) PowerShell
Qualifications
1 7 (12.50%) Degree
2 6 (10.71%) Master's Degree
3 4 (7.14%) ITIL Foundation Certificate
4 1 (1.79%) Computer Science Degree
Quality Assurance & Compliance
1 5 (8.93%) QA
2 1 (1.79%) SLA
System Software
1 5 (8.93%) Time Sharing Option
2 3 (5.36%) Job Entry Subsystem
3 1 (1.79%) Docker
Systems Management
1 2 (3.57%) OMEGAMON
2 1 (1.79%) Ansible
2 1 (1.79%) Kubernetes
2 1 (1.79%) Opscode Chef
2 1 (1.79%) Puppet
2 1 (1.79%) Terraform
Vendors
1 20 (35.71%) IBM
2 4 (7.14%) Microsoft
2 4 (7.14%) Oracle
3 2 (3.57%) CA
3 2 (3.57%) Red Hat
4 1 (1.79%) Google