Period
to 23 January 2022

The following table provides summary statistics for permanent job vacancies advertised in London 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 23 January 2022 with a comparison to the same period in the previous 2 years.

IBM z/OS
England > London
6 months to
23 Jan 2022
Same period 2021 Same period 2020
Rank 704 508 701
Rank change year-on-year -196 +193 +95
Permanent jobs citing zOS 24 15 22
As % of all permanent jobs advertised in London 0.048% 0.063% 0.043%
As % of the Operating Systems category 0.29% 0.35% 0.20%
Number of salaries quoted 9 15 16
10th Percentile £59,250 - £57,500
25th Percentile £60,000 £53,750 £62,500
Median annual salary (50th Percentile) £85,000 £67,500 £71,250
Median % change year-on-year +25.93% -5.26% +2.89%
75th Percentile - £93,750 £83,125
90th Percentile - £111,250 £88,750
England median annual salary £80,000 £67,500 £65,000
% change year-on-year +18.52% +3.85% +18.18%

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 advertised in London with a requirement for operating system skills.

All Operating Systems
London
Permanent vacancies with a requirement for operating system skills 8,361 4,326 10,873
As % of all permanent IT jobs advertised in London 16.56% 18.05% 21.22%
Number of salaries quoted 5,894 3,610 8,913
10th Percentile £31,250 £35,000 £28,500
25th Percentile £45,000 £47,500 £37,500
Median annual salary (50th Percentile) £63,000 £65,000 £57,500
Median % change year-on-year -3.08% +13.04% -4.17%
75th Percentile £82,500 £80,000 £76,250
90th Percentile £100,000 £95,000 £91,200
England median annual salary £50,000 £50,000 £45,000
% change year-on-year - +11.11% -5.26%

zOS
Job Vacancy Trend in London

Job postings citing zOS as a proportion of all IT jobs advertised in London.

Job vacancy trend for zOS in London

zOS
Salary Trend in London

3-month moving average salary quoted in jobs citing zOS in London.

Salary trend for zOS in London

zOS
Salary Histogram in London

Salary distribution for jobs citing zOS in London over the 6 months to 23 January 2022.

Salary histogram for zOS in London

zOS
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing zOS within the London region over the 6 months to 23 January 2022. 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
Jobs
Central London - 1 - -
zOS
England

For the 6 months to 23 January 2022, 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 across the London region with a requirement for zOS.

1 24 (100.00%) Windows
2 21 (87.50%) Assembly Language
2 21 (87.50%) Mainframe
3 19 (79.17%) COBOL
3 19 (79.17%) IBM
3 19 (79.17%) Test Automation
3 19 (79.17%) Test Strategy
3 19 (79.17%) SDLC
3 19 (79.17%) Virtual Machines
3 19 (79.17%) Self-Motivation
4 4 (16.67%) CA
4 4 (16.67%) RACF
5 3 (12.50%) TCP/IP
5 3 (12.50%) Apple
5 3 (12.50%) LAN
5 3 (12.50%) WAN
5 3 (12.50%) AIX
5 3 (12.50%) Linux
5 3 (12.50%) Cybersecurity
5 3 (12.50%) Wireless
6 2 (8.33%) Case Management
6 2 (8.33%) Multi-Factor Authentication
6 2 (8.33%) Storage Management
6 2 (8.33%) NIST
6 2 (8.33%) Regulatory Compliance
6 2 (8.33%) GDPR
6 2 (8.33%) Security Monitoring
6 2 (8.33%) Single Sign-On
6 2 (8.33%) Identity Management
6 2 (8.33%) Information Security

zOS
Co-occurring IT Skills in London 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 (8.33%) CICS
1 2 (8.33%) WebSphere
Cloud Services
1 2 (8.33%) AWS
1 2 (8.33%) Azure
1 2 (8.33%) Microsoft 365
Communications & Networking
1 3 (12.50%) LAN
1 3 (12.50%) TCP/IP
1 3 (12.50%) WAN
1 3 (12.50%) Wireless
2 2 (8.33%) HTTP
2 2 (8.33%) HTTPS
2 2 (8.33%) Internet
2 2 (8.33%) Intrusion Detection
2 2 (8.33%) IPsec
2 2 (8.33%) Kerberos
2 2 (8.33%) Network Security
2 2 (8.33%) NNTP
2 2 (8.33%) SSL
2 2 (8.33%) X.509
3 1 (4.17%) Firewall
Database & Business Intelligence
1 2 (8.33%) DB2
General
1 1 (4.17%) Banking
Job Titles
1 3 (12.50%) Analyst
1 3 (12.50%) Senior Analyst
1 3 (12.50%) SOC Analyst
2 2 (8.33%) Programmer
2 2 (8.33%) Systems Programmer
2 2 (8.33%) z/OS Systems Programmer
Libraries, Frameworks & Software Standards
1 2 (8.33%) ISPF
1 2 (8.33%) LDAP
1 2 (8.33%) SAML
1 2 (8.33%) WebSphere MQ
Miscellaneous
1 21 (87.50%) Mainframe
2 19 (79.17%) Self-Motivation
3 2 (8.33%) PKI
4 1 (4.17%) Security Operations Centre
Operating Systems
1 24 (100.00%) Windows
2 3 (12.50%) AIX
2 3 (12.50%) Linux
3 2 (8.33%) MVS
Processes & Methodologies
1 19 (79.17%) SDLC
1 19 (79.17%) Test Automation
1 19 (79.17%) Test Strategy
2 3 (12.50%) Cybersecurity
3 2 (8.33%) API Integration
3 2 (8.33%) Case Management
3 2 (8.33%) Ethical Hacking
3 2 (8.33%) Identity Access Management
3 2 (8.33%) Identity Management
3 2 (8.33%) Information Security
3 2 (8.33%) Multi-Factor Authentication
3 2 (8.33%) Regulatory Compliance
3 2 (8.33%) Security Architecture
3 2 (8.33%) Security Monitoring
3 2 (8.33%) Storage Management
4 1 (4.17%) Malware Analysis
4 1 (4.17%) Security Operations
4 1 (4.17%) Vulnerability Assessment
Programming Languages
1 21 (87.50%) Assembly Language
2 19 (79.17%) COBOL
3 2 (8.33%) REXX
3 2 (8.33%) SQL
Qualifications
1 2 (8.33%) CISM
1 2 (8.33%) CISSP
1 2 (8.33%) SANS
Quality Assurance & Compliance
1 2 (8.33%) GDPR
1 2 (8.33%) HIPAA
1 2 (8.33%) ISO/IEC 27001
1 2 (8.33%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
1 2 (8.33%) NIST
System Software
1 19 (79.17%) Virtual Machines
2 4 (16.67%) RACF
3 2 (8.33%) ACF2
3 2 (8.33%) Active Directory
3 2 (8.33%) Job Entry Subsystem
3 2 (8.33%) OpenAM
3 2 (8.33%) OpenIDM
Systems Management
1 2 (8.33%) CA Single Sign-On
1 2 (8.33%) Oracle Identity Management
1 2 (8.33%) Single Sign-On
Vendors
1 19 (79.17%) IBM
2 4 (16.67%) CA
3 3 (12.50%) Apple
4 2 (8.33%) BMC
4 2 (8.33%) Broadcom
4 2 (8.33%) CyberArk
4 2 (8.33%) ForgeRock
4 2 (8.33%) Oracle