IBM iSeries
UK

The table below looks at the prevalence of the term iSeries in permanent job vacancies. Included is a benchmarking guide to the salaries offered in vacancies that cited iSeries over the 6 months leading up to 31 May 2025, comparing them to the same period in the previous two years.

6 months to
31 May 2025
Same period 2024 Same period 2023
Rank 678 853 929
Rank change year-on-year +175 +76 +256
Permanent jobs citing iSeries 24 54 39
As % of all permanent jobs advertised in the UK 0.043% 0.052% 0.041%
As % of the Miscellaneous category 0.12% 0.15% 0.093%
Number of salaries quoted 11 44 35
10th Percentile £28,750 - £38,750
25th Percentile £53,750 £42,500 £41,875
Median annual salary (50th Percentile) £57,500 £55,000 £62,500
Median % change year-on-year +4.55% -12.00% +8.70%
75th Percentile £89,375 £55,813 £63,750
90th Percentile £91,250 £63,375 £92,250
UK excluding London median annual salary £57,500 £53,500 £45,000
% change year-on-year +7.48% +18.89% -21.74%

All Generic Skills
UK

iSeries falls under the General and Transferable Skills category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring generic IT skills.

Permanent vacancies with a requirement for generic IT skills 20,763 35,685 41,757
As % of all permanent jobs advertised in the UK 37.18% 34.42% 43.59%
Number of salaries quoted 9,606 23,135 22,550
10th Percentile £31,250 £28,000 £35,750
25th Percentile £42,000 £38,085 £46,350
Median annual salary (50th Percentile) £60,000 £55,000 £65,000
Median % change year-on-year +9.09% -15.38% +4.00%
75th Percentile £78,750 £75,000 £86,250
90th Percentile £110,000 £97,500 £110,000
UK excluding London median annual salary £55,000 £50,000 £55,000
% change year-on-year +10.00% -9.09% +4.76%

iSeries
Job Vacancy Trend

Job postings citing iSeries as a proportion of all IT jobs advertised.

Job vacancy trend for iSeries in the UK

iSeries
Salary Trend

3-month moving average salary quoted in jobs citing iSeries.

Salary trend for iSeries in the UK

iSeries
Salary Histogram

Salary distribution for jobs citing iSeries over the 6 months to 31 May 2025.

Salary histogram for iSeries in the UK

iSeries
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing iSeries within the UK over the 6 months to 31 May 2025. 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
UK excluding London +157 21 £57,500 +7.48% 10
England +140 21 £57,500 +5.99% 15
Midlands +60 6 - - 1
East Midlands - 6 - - 1
East of England - 6 £57,500 - 2
Work from Home +107 5 £57,500 +4.55% 3
South East +78 5 £87,500 +59.09% 3
London +103 3 - - 7
Scotland - 3 - - 1
North of England +8 1 - - 3
North West -28 1 - - 3

iSeries
Co-occurring Skills and Capabilities by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 4 (16.67%) SharePoint
Applications
1 2 (8.33%) Microsoft Excel
Cloud Services
1 4 (16.67%) Azure
1 4 (16.67%) Microsoft 365
1 4 (16.67%) Power Platform
Communications & Networking
1 7 (29.17%) FTP
Database & Business Intelligence
1 4 (16.67%) Data Warehouse
1 4 (16.67%) DB2
General
1 7 (29.17%) Analytical Skills
1 7 (29.17%) Social Skills
2 3 (12.50%) Inclusion and Diversity
Job Titles
1 6 (25.00%) AS400 Programmer
1 6 (25.00%) Programmer
1 6 (25.00%) RPG Programmer
2 5 (20.83%) Analyst
3 4 (16.67%) AS400 Developer
3 4 (16.67%) Developer
3 4 (16.67%) Lead
3 4 (16.67%) Lead Software Engineer
3 4 (16.67%) Software Engineer
4 3 (12.50%) Infrastructure Analyst
5 2 (8.33%) 2nd Line Support
5 2 (8.33%) 2nd Line Support Analyst
5 2 (8.33%) Head of IT
5 2 (8.33%) Head of Technology
5 2 (8.33%) Support Analyst
6 1 (4.17%) Sales Representative
Miscellaneous
1 19 (79.17%) AS400
2 4 (16.67%) Mainframe
Operating Systems
1 3 (12.50%) Linux
1 3 (12.50%) Unix
1 3 (12.50%) Windows
1 3 (12.50%) zOS
Processes & Methodologies
1 7 (29.17%) Agile
2 6 (25.00%) Roadmaps
2 6 (25.00%) Service Delivery
2 6 (25.00%) Technology Roadmap
3 5 (20.83%) Customer Service
4 4 (16.67%) Decision-Making
4 4 (16.67%) High Availability
4 4 (16.67%) Inventory Management
4 4 (16.67%) IT Strategy
4 4 (16.67%) Mentoring
4 4 (16.67%) Problem-Solving
4 4 (16.67%) Software Delivery
4 4 (16.67%) Software Engineering
4 4 (16.67%) TDD
4 4 (16.67%) Technical Leadership
4 4 (16.67%) Test Automation
4 4 (16.67%) Unit Testing
5 3 (12.50%) Service Management
5 3 (12.50%) Stakeholder Management
5 3 (12.50%) Strategic Planning
Programming Languages
1 18 (75.00%) RPG
2 12 (50.00%) SQL
3 8 (33.33%) RPG IV
Qualifications
1 2 (8.33%) Degree
1 2 (8.33%) SC Cleared
1 2 (8.33%) Security Cleared
Quality Assurance & Compliance
1 3 (12.50%) Sarbanes-Oxley
2 2 (8.33%) SLA
Vendors
1 5 (20.83%) IBM
2 4 (16.67%) Microsoft