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 20 June 2026, comparing them to the same period in the previous two years.

6 months to
20 Jun 2026
Same period 2025 Same period 2024
Rank 671 601 777
Rank change year-on-year -70 +176 +8
Permanent jobs citing AS400 33 25 84
As % of all permanent jobs in England 0.039% 0.063% 0.088%
As % of the Miscellaneous category 0.16% 0.15% 0.27%
Number of salaries quoted 32 15 83
10th Percentile - £40,250 £30,000
25th Percentile £52,500 £53,750 £42,500
Median annual salary (50th Percentile) £68,750 £85,000 £55,000
Median % change year-on-year -19.12% +54.55% -
75th Percentile £91,250 £87,500 £55,125
90th Percentile £93,500 £91,250 £64,500
UK median annual salary £60,000 £77,500 £53,500
% change year-on-year -22.58% +44.86% -2.73%

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 21,250 17,229 31,562
As % of all permanent jobs advertised in England 25.37% 43.30% 33.02%
Number of salaries quoted 13,975 8,305 21,360
10th Percentile £30,750 £29,750 £28,000
25th Percentile £41,250 £40,000 £38,500
Median annual salary (50th Percentile) £60,000 £57,500 £55,000
Median % change year-on-year +4.35% +4.55% -15.38%
75th Percentile £80,000 £80,000 £75,000
90th Percentile £100,000 £111,250 £100,000
UK median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -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 20 June 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 20 June 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 -15 14 £87,500 +2.94% 4
West Midlands -8 11 £55,000 +69.23%
Midlands -24 11 £55,000 +69.23%
South East -29 3 £67,500 -20.59% 3
South West - 3 £56,250 - 3
North East - 1 - - 1
North of England - 1 - - 5
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 (6.06%) Misys Equation
1 2 (6.06%) Misys Midas
Cloud Services
1 13 (39.39%) Azure
2 1 (3.03%) AWS
2 1 (3.03%) Azure ExpressRoute
2 1 (3.03%) dbt
2 1 (3.03%) IaaS
2 1 (3.03%) PaaS
2 1 (3.03%) Snowflake
Communications & Networking
1 1 (3.03%) DNS
1 1 (3.03%) Firewall
1 1 (3.03%) LAN
1 1 (3.03%) TCP/IP
1 1 (3.03%) VPN
1 1 (3.03%) WAN
1 1 (3.03%) Wi-Fi
Database & Business Intelligence
1 8 (24.24%) Db2
2 3 (9.09%) SQL Server
3 2 (6.06%) SQL Server Reporting Services
4 1 (3.03%) Data Vault
4 1 (3.03%) Semantic Layer
4 1 (3.03%) Snowflake Schema
4 1 (3.03%) Star Schema
Development Applications
1 1 (3.03%) JIRA
General
1 12 (36.36%) Banking
2 11 (33.33%) Finance
3 9 (27.27%) Manufacturing
4 8 (24.24%) Financial Institution
5 7 (21.21%) Analytical Skills
6 6 (18.18%) Social Skills
7 5 (15.15%) Retail
8 2 (6.06%) Presentation Skills
9 1 (3.03%) Local Government
9 1 (3.03%) Public Sector
Job Titles
1 17 (51.52%) Developer
2 14 (42.42%) RPG Developer
3 10 (30.30%) Applications Manager
3 10 (30.30%) Applications Support
3 10 (30.30%) Applications Support Manager
3 10 (30.30%) Support Manager
4 8 (24.24%) Application Development Manager
4 8 (24.24%) Applications Development Manager
4 8 (24.24%) Development Manager
5 5 (15.15%) Lead
6 4 (12.12%) Architect
6 4 (12.12%) Lead Developer
7 2 (6.06%) Applications Architect
7 2 (6.06%) AS400 Support
8 1 (3.03%) Data Architect
8 1 (3.03%) Enterprise Architect
8 1 (3.03%) Infrastructure Manager
8 1 (3.03%) Network Infrastructure Manager
8 1 (3.03%) Network Manager
8 1 (3.03%) Programmer
Libraries, Frameworks & Software Standards
1 6 (18.18%) EDI
2 4 (12.12%) .NET
3 2 (6.06%) JSON
3 2 (6.06%) Middleware
3 2 (6.06%) REST
3 2 (6.06%) SOAP
3 2 (6.06%) XML
4 1 (3.03%) Snowpark
Miscellaneous
1 14 (42.42%) iSeries
2 9 (27.27%) Legacy Systems
3 4 (12.12%) Analytical Mindset
4 2 (6.06%) Legacy Applications
4 2 (6.06%) Management Information System
5 1 (3.03%) Clustering
5 1 (3.03%) Data Centre
5 1 (3.03%) Data Structures
5 1 (3.03%) LPAR
5 1 (3.03%) NHS
5 1 (3.03%) Security Posture
Operating Systems
1 1 (3.03%) Linux
1 1 (3.03%) Windows
Processes & Methodologies
1 14 (42.42%) SDLC
2 13 (39.39%) Problem-Solving
3 11 (33.33%) Root Cause Analysis
3 11 (33.33%) Service Management
4 10 (30.30%) Agile
4 10 (30.30%) Incident Management
4 10 (30.30%) ITIL
4 10 (30.30%) Project Delivery
5 9 (27.27%) Performance Optimisation
6 8 (24.24%) Stakeholder Management
6 8 (24.24%) Technical Leadership
7 5 (15.15%) Clean Code
7 5 (15.15%) Translating Business Requirements
8 4 (12.12%) Application Security
8 4 (12.12%) Collaborative Culture
8 4 (12.12%) Continuous Improvement
8 4 (12.12%) End-to-End Testing
8 4 (12.12%) ERP
8 4 (12.12%) Logistics
8 4 (12.12%) Performance Tuning
Programming Languages
1 28 (84.85%) RPG
2 16 (48.48%) SQL
3 12 (36.36%) COBOL
4 8 (24.24%) RPG IV
5 5 (15.15%) RPG III
6 4 (12.12%) C#
6 4 (12.12%) RPG/400
7 2 (6.06%) Java
Qualifications
1 2 (6.06%) Computer Science Degree
1 2 (6.06%) Degree
1 2 (6.06%) PMI Certification
1 2 (6.06%) PMP
Quality Assurance & Compliance
1 4 (12.12%) QA
2 2 (6.06%) PMO
3 1 (3.03%) Data Quality
3 1 (3.03%) SLA
System Software
1 1 (3.03%) Active Directory
1 1 (3.03%) Hyper-V
1 1 (3.03%) VMware Infrastructure
Vendors
1 22 (66.67%) IBM
2 2 (6.06%) Citrix
2 2 (6.06%) Microsoft
2 2 (6.06%) Misys
3 1 (3.03%) VMware