Period
to 25 November 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 25 November 2020 with a comparison to the same period in the previous 2 years.

IBM z/OS
UK
6 months to
25 Nov 2020
Same period 2019 Same period 2018
Rank 697 1022 1117
Rank change year-on-year +325 +95 +68
Permanent jobs citing zOS 19 48 42
As % of all permanent jobs advertised in the UK 0.035% 0.036% 0.026%
As % of the Operating Systems category 0.16% 0.16% 0.11%
Number of salaries quoted 16 32 27
Median annual salary £67,500 £65,000 £55,000
Median salary % change year-on-year +3.85% +18.18% +46.67%
10th Percentile £53,750 £61,250 £36,250
90th Percentile £111,250 £103,375 £87,500
UK excluding London median annual salary - £62,500 £55,000
% change year-on-year - +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 11,667 30,725 37,023
As % of all permanent IT jobs advertised in the UK 21.29% 22.78% 23.16%
Number of salaries quoted 9,729 24,454 29,881
Median annual salary £50,000 £45,000 £47,500
Median salary % change year-on-year +11.11% -5.26% +5.56%
10th Percentile £28,000 £25,000 £25,250
90th Percentile £80,000 £80,000 £77,500
UK excluding London median annual salary £45,000 £40,000 £40,500
% change year-on-year +12.50% -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 25 November 2020.

Salary histogram for zOS in the UK

zOS
Top 6 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 25 November 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 +285 18 £67,500 +3.85% 5
London +236 17 £67,500 +3.85% 1
UK excluding London +252 2 - - 4
Midlands - 1 - -
West Midlands - 1 - -
Scotland - 1 - -

For the 6 months to 25 November 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 17 (89.47%) Java
2 16 (84.21%) .NET
2 16 (84.21%) Unix
2 16 (84.21%) Windows
2 16 (84.21%) Linux
2 16 (84.21%) Configuration Management
2 16 (84.21%) Stakeholder Management
2 16 (84.21%) Google
2 16 (84.21%) Continuous Integration
2 16 (84.21%) Azure
2 16 (84.21%) AWS
2 16 (84.21%) Puppet
2 16 (84.21%) Opscode Chef
2 16 (84.21%) Ansible
2 16 (84.21%) Docker
2 16 (84.21%) DevOps
2 16 (84.21%) CoreOS
2 16 (84.21%) Terraform
2 16 (84.21%) Disruptive Innovation
2 16 (84.21%) Kubernetes
2 16 (84.21%) Infrastructure as Code
3 11 (57.89%) Insurtech
3 11 (57.89%) GitLab
3 11 (57.89%) Bitbucket
3 11 (57.89%) Gerrit
3 11 (57.89%) Visual Studio Team System
3 11 (57.89%) Git (software)
3 11 (57.89%) Team Foundation Server
4 5 (26.32%) Investment Banking
4 5 (26.32%) MiFID

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 1 (5.26%) CICS
Cloud Services
1 16 (84.21%) AWS
1 16 (84.21%) Azure
2 1 (5.26%) GCP
Communications & Networking
1 1 (5.26%) SNA
Database & Business Intelligence
1 2 (10.53%) DB2
Development Applications
1 11 (57.89%) Bitbucket
1 11 (57.89%) Gerrit
1 11 (57.89%) Git (software)
1 11 (57.89%) GitLab
1 11 (57.89%) Team Foundation Server
1 11 (57.89%) Visual Studio Team System
General
1 5 (26.32%) Banking
1 5 (26.32%) Front Office
1 5 (26.32%) Investment Banking
Job Titles
1 16 (84.21%) DevOps Engineer
1 16 (84.21%) Java Engineer
1 16 (84.21%) Linux DevOps Engineer
1 16 (84.21%) Linux Engineer
1 16 (84.21%) Linux/Unix DevOps
2 5 (26.32%) AWS DevOps
2 5 (26.32%) AWS DevOps Engineer
2 5 (26.32%) AWS Engineer
2 5 (26.32%) Cloud Engineer
3 1 (5.26%) Administrator
3 1 (5.26%) Analyst
3 1 (5.26%) Developer
3 1 (5.26%) Mainframe Analyst
3 1 (5.26%) Mainframe Developer
3 1 (5.26%) Mainframe Operations Analyst
3 1 (5.26%) Operations Analyst
3 1 (5.26%) Technical Analyst
3 1 (5.26%) Technical Operations Analyst
Libraries, Frameworks & Software Standards
1 16 (84.21%) .NET
2 1 (5.26%) ISPF
2 1 (5.26%) Middleware
2 1 (5.26%) Node.js
2 1 (5.26%) Spring
Miscellaneous
1 5 (26.32%) Equities
2 3 (15.79%) Mainframe
3 1 (5.26%) AS400
3 1 (5.26%) Self-Motivation
Operating Systems
1 16 (84.21%) CoreOS
1 16 (84.21%) Linux
1 16 (84.21%) Unix
1 16 (84.21%) Windows
Processes & Methodologies
1 16 (84.21%) Configuration Management
1 16 (84.21%) Continuous Integration
1 16 (84.21%) DevOps
1 16 (84.21%) Disruptive Innovation
1 16 (84.21%) Infrastructure as Code
1 16 (84.21%) Stakeholder Management
2 11 (57.89%) Insurtech
3 1 (5.26%) Collaborative Working
3 1 (5.26%) Decision-Making
3 1 (5.26%) Migration
3 1 (5.26%) Storage Management
3 1 (5.26%) Tech Ops
Programming Languages
1 17 (89.47%) Java
2 2 (10.53%) JCL
3 1 (5.26%) C++
3 1 (5.26%) CLIST
3 1 (5.26%) COBOL
3 1 (5.26%) PL/1
3 1 (5.26%) REXX
Quality Assurance & Compliance
1 5 (26.32%) Dodd-Frank
1 5 (26.32%) EMIR
1 5 (26.32%) MiFID
2 1 (5.26%) SLA
System Software
1 16 (84.21%) Docker
2 1 (5.26%) ACF2
2 1 (5.26%) Job Entry Subsystem
2 1 (5.26%) RACF
2 1 (5.26%) Time Sharing Option
2 1 (5.26%) Tivoli Workload Scheduler
Systems Management
1 16 (84.21%) Ansible
1 16 (84.21%) Kubernetes
1 16 (84.21%) Opscode Chef
1 16 (84.21%) Puppet
1 16 (84.21%) Terraform
2 1 (5.26%) Control-M
2 1 (5.26%) OMEGAMON
2 1 (5.26%) Tivoli
2 1 (5.26%) Tivoli NetView
Vendors
1 16 (84.21%) Google
2 2 (10.53%) IBM
3 1 (5.26%) CA