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 21 May 2026, comparing them to the same period in the previous two years.

6 months to
21 May 2026
Same period 2025 Same period 2024
Rank 661 610 755
Rank change year-on-year -51 +145 +69
Permanent jobs citing AS400 29 22 59
As % of all permanent jobs in England 0.035% 0.056% 0.070%
As % of the Miscellaneous category 0.13% 0.13% 0.20%
Number of salaries quoted 28 14 59
10th Percentile £52,500 - £29,500
25th Percentile £53,125 £53,750 £42,500
Median annual salary (50th Percentile) £66,250 £85,000 £52,500
Median % change year-on-year -22.06% +61.90% -4.55%
75th Percentile £91,250 £87,500 £57,500
90th Percentile £92,375 £91,250 £65,500
UK median annual salary £66,250 £85,000 £50,000
% change year-on-year -22.06% +70.00% -9.09%

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 22,019 16,894 29,596
As % of all permanent jobs advertised in England 26.79% 43.03% 34.94%
Number of salaries quoted 12,657 8,222 20,843
10th Percentile £30,000 £30,750 £28,000
25th Percentile £41,250 £41,250 £38,000
Median annual salary (50th Percentile) £60,000 £60,000 £55,000
Median % change year-on-year - +9.09% -15.38%
75th Percentile £80,000 £81,250 £75,000
90th Percentile £100,000 £112,500 £100,000
UK median annual salary £60,000 £60,000 £55,000
% change year-on-year - +9.09% -15.38%

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 21 May 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 21 May 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 -16 14 £87,500 +2.94% 2
Midlands -26 8 £55,000 +69.23% 2
West Midlands -33 8 £55,000 +69.23% 2
South East -26 3 £67,500 -20.59%
South West - 3 £56,250 -
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 2 (6.90%) Misys Equation
1 2 (6.90%) Misys Midas
Cloud Services
1 9 (31.03%) Azure
2 2 (6.90%) Entra ID
3 1 (3.45%) AWS
3 1 (3.45%) GCP
Communications & Networking
1 2 (6.90%) WinSCP
Database & Business Intelligence
1 7 (24.14%) DB2
2 5 (17.24%) SQL Server
3 2 (6.90%) SQL Server Reporting Services
Development Applications
1 2 (6.90%) Git
General
1 11 (37.93%) Banking
2 8 (27.59%) Finance
3 7 (24.14%) Manufacturing
4 6 (20.69%) Analytical Skills
5 5 (17.24%) Financial Institution
5 5 (17.24%) Social Skills
6 4 (13.79%) Retail
7 2 (6.90%) Presentation Skills
8 1 (3.45%) Inclusion and Diversity
8 1 (3.45%) Local Government
8 1 (3.45%) Public Sector
Job Titles
1 14 (48.28%) Developer
2 11 (37.93%) RPG Developer
3 9 (31.03%) Applications Support
4 7 (24.14%) Applications Manager
4 7 (24.14%) Applications Support Manager
4 7 (24.14%) Support Manager
5 5 (17.24%) Application Development Manager
5 5 (17.24%) Applications Development Manager
5 5 (17.24%) Development Manager
5 5 (17.24%) Lead
6 4 (13.79%) Architect
6 4 (13.79%) Lead Developer
7 3 (10.34%) Analyst
7 3 (10.34%) Support Analyst
8 2 (6.90%) Applications Architect
8 2 (6.90%) Applications Support Analyst
8 2 (6.90%) AS400 Support
8 2 (6.90%) SQL Analyst
8 2 (6.90%) SQL Support Analyst
9 1 (3.45%) Lead Enterprise Architect
Libraries, Frameworks & Software Standards
1 5 (17.24%) .NET
2 4 (13.79%) EDI
3 2 (6.90%) JSON
3 2 (6.90%) Middleware
3 2 (6.90%) REST
3 2 (6.90%) SOAP
3 2 (6.90%) XML
Miscellaneous
1 13 (44.83%) iSeries
2 6 (20.69%) Legacy Systems
3 3 (10.34%) Analytical Mindset
4 2 (6.90%) Legacy Applications
4 2 (6.90%) Management Information System
5 1 (3.45%) Cloud Native
5 1 (3.45%) LPAR
5 1 (3.45%) NHS
Operating Systems
1 2 (6.90%) Windows
1 2 (6.90%) Windows Server
Processes & Methodologies
1 10 (34.48%) Problem-Solving
1 10 (34.48%) SDLC
2 9 (31.03%) Agile
2 9 (31.03%) ITIL
2 9 (31.03%) Service Management
3 7 (24.14%) Incident Management
3 7 (24.14%) Project Delivery
3 7 (24.14%) Root Cause Analysis
4 5 (17.24%) Performance Optimisation
4 5 (17.24%) Stakeholder Management
4 5 (17.24%) Technical Leadership
5 4 (13.79%) Application Security
5 4 (13.79%) Business Continuity
5 4 (13.79%) Change Management
5 4 (13.79%) Clean Code
5 4 (13.79%) Disaster Recovery
5 4 (13.79%) ERP
5 4 (13.79%) Performance Tuning
5 4 (13.79%) Translating Business Requirements
6 3 (10.34%) Continuous Improvement
Programming Languages
1 21 (72.41%) RPG
2 14 (48.28%) SQL
3 9 (31.03%) COBOL
4 6 (20.69%) RPG IV
5 4 (13.79%) RPG III
6 3 (10.34%) C#
6 3 (10.34%) RPG/400
7 2 (6.90%) Java
7 2 (6.90%) PowerShell
7 2 (6.90%) VB.NET
Qualifications
1 2 (6.90%) Computer Science Degree
1 2 (6.90%) Degree
1 2 (6.90%) PMI Certification
1 2 (6.90%) PMP
Quality Assurance & Compliance
1 4 (13.79%) QA
2 2 (6.90%) PMO
Vendors
1 19 (65.52%) IBM
2 3 (10.34%) Microsoft
3 2 (6.90%) Citrix
3 2 (6.90%) Misys