AS400 Job Trends in England

IBM AS/400
UK > England

The table below looks at the prevalence of the term AS400 in permanent job vacancies in England. Included is a benchmarking guide to the salaries offered in vacancies that cited AS400 over the 6 months leading up to 5 February 2026, comparing them to the same period in the previous two years.

6 months to
5 Feb 2026
Same period 2025 Same period 2024
Rank 589 665 716
Rank change year-on-year +76 +51 +178
Permanent jobs citing AS400 19 8 40
As % of all permanent jobs in England 0.033% 0.017% 0.062%
As % of the Miscellaneous category 0.099% 0.046% 0.17%
Number of salaries quoted 17 4 40
10th Percentile £47,250 - £27,500
25th Percentile £53,125 £53,750 £41,063
Median annual salary (50th Percentile) £65,000 £57,500 £55,000
Median % change year-on-year +13.04% +4.55% -4.35%
75th Percentile £80,000 £61,250 £64,063
90th Percentile £90,250 - £67,500
UK median annual salary £65,000 £57,500 £55,000
% change year-on-year +13.04% +4.55% -4.35%

All Generic Skills
England

AS400 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 in England.

Permanent vacancies with a requirement for generic IT skills 19,126 17,235 23,166
As % of all permanent jobs advertised in England 33.55% 37.41% 35.75%
Number of salaries quoted 9,764 8,071 17,581
10th Percentile £28,000 £34,500 £29,000
25th Percentile £37,500 £46,250 £40,000
Median annual salary (50th Percentile) £55,000 £62,500 £57,494
Median % change year-on-year -12.00% +8.71% -11.55%
75th Percentile £78,750 £85,000 £79,500
90th Percentile £100,000 £115,000 £100,000
UK median annual salary £55,000 £61,500 £57,291
% change year-on-year -10.57% +7.35% -11.86%

AS400
Job Vacancy Trend in England

Historical trend showing the proportion of permanent IT job postings citing AS400 relative to all permanent IT jobs advertised in England.

AS400 job vacancy trend in England

AS400
Salary Trend in England

Salary distribution trend for jobs in England citing AS400.

Salary distribution trend for jobs in England citing AS400

AS400
Salary Histogram in England

Salary distribution for jobs citing AS400 in England over the 6 months to 5 February 2026.

Salary histogram for AS400 in England

AS400
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing AS400 within the England region over the 6 months to 5 February 2026. 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
London - 12 £73,750 - 1
South East - 4 £67,500 - 1
South West - 3 £56,250 - 1
AS400
UK

AS400
Co-Occurring Skills & Capabilities in England by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Business Applications
1 1 (5.26%) Misys Equation
1 1 (5.26%) Misys Midas
Cloud Services
1 8 (42.11%) Azure
2 6 (31.58%) AWS
3 5 (26.32%) GCP
4 2 (10.53%) Entra ID
5 1 (5.26%) Microsoft 365
5 1 (5.26%) SaaS
Communications & Networking
1 2 (10.53%) SSL
1 2 (10.53%) WinSCP
Database & Business Intelligence
1 5 (26.32%) SQL Server
2 3 (15.79%) DB2
Development Applications
1 2 (10.53%) Git
General
1 7 (36.84%) Social Skills
2 5 (26.32%) Retail
3 4 (21.05%) Banking
3 4 (21.05%) Finance
3 4 (21.05%) Influencing Skills
4 2 (10.53%) Analytical Skills
4 2 (10.53%) Inclusion and Diversity
5 1 (5.26%) Documentation Skills
5 1 (5.26%) Financial Institution
Job Titles
1 7 (36.84%) Lead
2 5 (26.32%) Architect
2 5 (26.32%) Developer
2 5 (26.32%) Solutions Architect
3 4 (21.05%) Lead Architect
3 4 (21.05%) Lead Solutions Architect
3 4 (21.05%) RPG Developer
4 3 (15.79%) Analyst
4 3 (15.79%) Lead Developer
4 3 (15.79%) Support Analyst
5 2 (10.53%) Applications Support
5 2 (10.53%) Applications Support Analyst
5 2 (10.53%) AS400 Operator
5 2 (10.53%) Cloud Architect
5 2 (10.53%) Cloud Solutions Architect
5 2 (10.53%) Lead Cloud Architect
5 2 (10.53%) SQL Analyst
5 2 (10.53%) SQL Support Analyst
6 1 (5.26%) Data Centre Project Manager
6 1 (5.26%) Head of Development
Libraries, Frameworks & Software Standards
1 2 (10.53%) .NET
1 2 (10.53%) Flash
2 1 (5.26%) EDI
Miscellaneous
1 12 (63.16%) iSeries
2 5 (26.32%) Cloud Native
3 4 (21.05%) Enterprise Cloud
4 2 (10.53%) IBM Storwize
5 1 (5.26%) Data Centre
5 1 (5.26%) Hybrid Cloud
5 1 (5.26%) Legacy Applications
Operating Systems
1 2 (10.53%) Windows
1 2 (10.53%) Windows Server
Processes & Methodologies
1 7 (36.84%) Customer Experience
2 5 (26.32%) Architectural Patterns
2 5 (26.32%) DevOps
2 5 (26.32%) Event-Driven
2 5 (26.32%) Microservices
3 4 (21.05%) Community of Practice
3 4 (21.05%) Data Architecture
3 4 (21.05%) Decision-Making
3 4 (21.05%) Domain-Driven Design
3 4 (21.05%) Event-Driven Architecture
3 4 (21.05%) Integration Patterns
3 4 (21.05%) Observability
3 4 (21.05%) Performance Management
3 4 (21.05%) Platform Engineering
3 4 (21.05%) Product Strategy
4 3 (15.79%) ITIL
4 3 (15.79%) Service Management
5 2 (10.53%) Change Management
5 2 (10.53%) Disaster Recovery
5 2 (10.53%) ERP
Programming Languages
1 8 (42.11%) SQL
2 4 (21.05%) RPG
3 3 (15.79%) COBOL
4 2 (10.53%) PowerShell
4 2 (10.53%) VB.NET
5 1 (5.26%) RPG IV
Qualifications
1 2 (10.53%) Degree
2 1 (5.26%) Computer Science Degree
2 1 (5.26%) Master's Degree
2 1 (5.26%) PMI Certification
2 1 (5.26%) PMP
Quality Assurance & Compliance
1 1 (5.26%) Cyber Essentials
1 1 (5.26%) Cyber Essentials PLUS
1 1 (5.26%) GDPR
1 1 (5.26%) ISO/IEC 27001
1 1 (5.26%) QA
System Software
1 2 (10.53%) Virtual Machines
Systems Management
1 2 (10.53%) ZABBIX
Vendors
1 11 (57.89%) IBM
2 4 (21.05%) Microsoft
3 1 (5.26%) Citrix
3 1 (5.26%) Misys
3 1 (5.26%) SEEBURGER
3 1 (5.26%) Temenos