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 18 October 2026, comparing them to the same period in the previous two years.
| 6 months to 18 Oct 2026 |
Same period 2025 | Same period 2024 | |
|---|---|---|---|
| Rank | 728 | 599 | 684 |
| Rank change year-on-year | -129 | +85 | -21 |
| Permanent jobs citing AS400 | 44 | 20 | 48 |
| As % of all permanent jobs in England | 0.042% | 0.047% | 0.077% |
| As % of the Miscellaneous category | 0.16% | 0.11% | 0.23% |
| Number of salaries quoted | 33 | 15 | 43 |
| 10th Percentile | - | £26,000 | £36,500 |
| 25th Percentile | £52,500 | £28,625 | £49,875 |
| Median annual salary (50th Percentile) | £70,000 | £45,000 | £55,000 |
| Median % change year-on-year | +55.56% | -18.18% | - |
| 75th Percentile | £91,250 | £87,500 | - |
| 90th Percentile | - | £92,000 | £55,250 |
| UK median annual salary | £57,500 | £45,000 | £55,000 |
| % change year-on-year | +27.78% | -18.18% | - |
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.
| 6 months to 18 Oct 2026 |
Same period 2025 | Same period 2024 | |
|---|---|---|---|
| Permanent vacancies with a requirement for generic IT skills | 28,289 | 17,449 | 20,442 |
| As % of all permanent jobs advertised in England | 26.89% | 40.93% | 32.76% |
| Number of salaries quoted | 18,208 | 9,237 | 10,068 |
| 10th Percentile | £31,000 | £28,000 | £33,000 |
| 25th Percentile | £41,000 | £36,250 | £46,235 |
| Median annual salary (50th Percentile) | £55,000 | £55,000 | £60,000 |
| Median % change year-on-year | - | -8.33% | -4.00% |
| 75th Percentile | £80,000 | £77,500 | £85,000 |
| 90th Percentile | £100,000 | £105,000 | £115,000 |
| UK median annual salary | £55,000 | £54,000 | £60,000 |
| % change year-on-year | +1.85% | -10.00% | -4.00% |
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 Salary Trend in England
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 18 October 2026.
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 18 October 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 | -56 | 19 | £87,500 | +27.27% | |
| Midlands | -37 | 11 | £55,000 | +69.23% | |
| West Midlands | -38 | 11 | £55,000 | +69.23% | |
| East of England | - | 9 | £55,000 | - | 1 |
| South West | - | 2 | £80,000 | - | 1 |
| South East | -65 | 1 | £40,000 | -11.11% | |
| North East | - | 1 | - | - | |
| North of England | - | 1 | - | - | 1 |
| AS400 UK |
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AS400 Co-Occurring Skills & Capabilities in England by Category
The table below expands on the one above by listing co-occurrences one category at a time. It covers the same employment type, locality and period, with up to 20 co-occurrences in each category.
Miscellaneous
| Rank | Skill | Share | Job Ads |
|---|---|---|---|
| 1 | iSeries | 59.1% | 26 |
| 2 | Legacy Systems | 34.1% | 15 |
| 3 | Data Centre | 11.4% | 5 |
| 3 | Security Posture | 11.4% | 5 |
| 5 | Analytical Mindset | 4.5% | 2 |
| 5 | Legacy Applications | 4.5% | 2 |
| 7 | Clustering | 2.3% | 1 |
| 7 | Data Structures | 2.3% | 1 |