Period
to 18 September 2020

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 18 September 2020 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
18 Sep 2020
Same period 2019 Same period 2018
Rank 681 1046 1160
Rank change year-on-year +365 +114 +50
Permanent jobs citing zOS 13 49 31
As % of all permanent jobs advertised in the UK 0.026% 0.035% 0.018%
As % of the Operating Systems category 0.12% 0.15% 0.080%
Number of salaries quoted 13 32 19
Median annual salary £65,000 £62,500 £55,000
Median salary % change year-on-year +4.00% +13.64% +46.67%
10th Percentile £46,500 £36,375 £36,250
90th Percentile £111,250 £101,125 £89,000
UK excluding London median annual salary £55,000 £62,500 £55,000
% change year-on-year -12.00% +13.64% +46.67%

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 10,827 32,425 38,642
As % of all permanent IT jobs advertised in the UK 21.43% 22.90% 23.04%
Number of salaries quoted 8,877 25,570 31,165
Median annual salary £50,000 £45,000 £47,500
Median salary % change year-on-year +11.11% -5.26% +5.56%
10th Percentile £28,750 £25,250 £25,110
90th Percentile £80,000 £80,000 £77,500
UK excluding London median annual salary £45,000 £41,000 £40,500
% change year-on-year +9.76% +1.23% +1.25%

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 18 September 2020.

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 18 September 2020. 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 +317 11 £55,000 -12.00% 5
UK excluding London +300 6 £55,000 -12.00% 3
London +239 6 £102,500 +57.69% 2
South East +196 3 £50,000 -20.00%
Work from Home +57 3 £55,000 -
North of England +195 1 £55,000 - 2
North West +135 1 £55,000 - 1
Scotland +106 1 - -
West Midlands - 1 - - 1
Midlands - 1 - - 1

For the 6 months to 18 September 2020, 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 8 (61.54%) Mainframe
2 6 (46.15%) Java
3 5 (38.46%) .NET
3 5 (38.46%) Unix
3 5 (38.46%) Windows
3 5 (38.46%) Linux
3 5 (38.46%) Stakeholder Management
3 5 (38.46%) Google
3 5 (38.46%) Visual Studio Team System
3 5 (38.46%) Git (software)
3 5 (38.46%) Team Foundation Server
3 5 (38.46%) Azure
3 5 (38.46%) AWS
3 5 (38.46%) Puppet
3 5 (38.46%) Gerrit
3 5 (38.46%) Continuous Integration
3 5 (38.46%) Configuration Management
3 5 (38.46%) Bitbucket
3 5 (38.46%) Opscode Chef
3 5 (38.46%) Ansible
3 5 (38.46%) Docker
3 5 (38.46%) DevOps
3 5 (38.46%) GitLab
3 5 (38.46%) CoreOS
3 5 (38.46%) Kubernetes
3 5 (38.46%) Disruptive Innovation
3 5 (38.46%) Terraform
3 5 (38.46%) Infrastructure as Code
3 5 (38.46%) Insurtech
4 4 (30.77%) IBM

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 2 (15.38%) CICS
2 1 (7.69%) MQSeries
Cloud Services
1 5 (38.46%) AWS
1 5 (38.46%) Azure
2 1 (7.69%) GCP
Communications & Networking
1 2 (15.38%) TCP/IP
2 1 (7.69%) SNA
Database & Business Intelligence
1 3 (23.08%) DB2
2 1 (7.69%) IDMS
Development Applications
1 5 (38.46%) Bitbucket
1 5 (38.46%) Gerrit
1 5 (38.46%) Git (software)
1 5 (38.46%) GitLab
1 5 (38.46%) Team Foundation Server
1 5 (38.46%) Visual Studio Team System
Job Titles
1 5 (38.46%) DevOps Engineer
1 5 (38.46%) Java Engineer
1 5 (38.46%) Linux DevOps Engineer
1 5 (38.46%) Linux Engineer
1 5 (38.46%) Linux/Unix DevOps
2 2 (15.38%) Mainframe Programmer
2 2 (15.38%) Programmer
3 1 (7.69%) Administrator
3 1 (7.69%) Analyst
3 1 (7.69%) Architect
3 1 (7.69%) Developer
3 1 (7.69%) Mainframe Analyst
3 1 (7.69%) Mainframe Developer
3 1 (7.69%) Mainframe Operations Analyst
3 1 (7.69%) Operations Analyst
3 1 (7.69%) Platform Architect
3 1 (7.69%) Technical Analyst
3 1 (7.69%) Technical Operations Analyst
Libraries, Frameworks & Software Standards
1 5 (38.46%) .NET
2 1 (7.69%) Flash
2 1 (7.69%) ISPF
2 1 (7.69%) Middleware
2 1 (7.69%) Node.js
2 1 (7.69%) Spring
Miscellaneous
1 8 (61.54%) Mainframe
2 2 (15.38%) IBM Mainframe
3 1 (7.69%) AS400
3 1 (7.69%) Replication
3 1 (7.69%) Self-Motivation
Operating Systems
1 5 (38.46%) CoreOS
1 5 (38.46%) Linux
1 5 (38.46%) Unix
1 5 (38.46%) Windows
Processes & Methodologies
1 5 (38.46%) Configuration Management
1 5 (38.46%) Continuous Integration
1 5 (38.46%) DevOps
1 5 (38.46%) Disruptive Innovation
1 5 (38.46%) Infrastructure as Code
1 5 (38.46%) Insurtech
1 5 (38.46%) Stakeholder Management
2 3 (23.08%) Disaster Recovery
3 1 (7.69%) Collaborative Working
3 1 (7.69%) Computer Science
3 1 (7.69%) Decision-Making
3 1 (7.69%) Enterprise Architecture
3 1 (7.69%) ITIL
3 1 (7.69%) Migration
3 1 (7.69%) Storage Management
3 1 (7.69%) Tech Ops
3 1 (7.69%) Technical Leadership
3 1 (7.69%) TOGAF
Programming Languages
1 6 (46.15%) Java
2 2 (15.38%) JCL
3 1 (7.69%) C++
3 1 (7.69%) CLIST
3 1 (7.69%) COBOL
3 1 (7.69%) PL/1
3 1 (7.69%) REXX
Qualifications
1 1 (7.69%) Computer Science Degree
1 1 (7.69%) Degree
Quality Assurance & Compliance
1 1 (7.69%) SLA
System Software
1 5 (38.46%) Docker
2 3 (23.08%) Virtual Machines
3 1 (7.69%) ACF2
3 1 (7.69%) Job Entry Subsystem
3 1 (7.69%) RACF
3 1 (7.69%) Time Sharing Option
3 1 (7.69%) Tivoli Workload Scheduler
Systems Management
1 5 (38.46%) Ansible
1 5 (38.46%) Kubernetes
1 5 (38.46%) Opscode Chef
1 5 (38.46%) Puppet
1 5 (38.46%) Terraform
2 1 (7.69%) Control-M
2 1 (7.69%) OMEGAMON
2 1 (7.69%) Tivoli
2 1 (7.69%) Tivoli NetView
Vendors
1 5 (38.46%) Google
2 4 (30.77%) IBM
3 2 (15.38%) Brocade
4 1 (7.69%) CA