IBM AS/400
England > London
The table below looks at the prevalence of the term AS400 in permanent job vacancies in London. Included is a benchmarking guide to the salaries offered in vacancies that cited AS400 over the 6 months leading up to 13 January 2026, comparing them to the same period in the previous two years.
| 6 months to 13 Jan 2026 |
Same period 2025 | Same period 2024 | |
|---|---|---|---|
| Rank | 362 | - | 442 |
| Rank change year-on-year | - | - | +203 |
| Permanent jobs citing AS400 | 12 | 0 | 10 |
| As % of all permanent jobs in London | 0.086% | - | 0.055% |
| As % of the Miscellaneous category | 0.21% | - | 0.13% |
| Number of salaries quoted | 10 | 0 | 10 |
| 10th Percentile | £56,625 | - | £42,500 |
| 25th Percentile | £57,500 | - | £47,188 |
| Median annual salary (50th Percentile) | £73,750 | - | £62,500 |
| Median % change year-on-year | - | - | +8.70% |
| 75th Percentile | £79,688 | - | £66,563 |
| 90th Percentile | £87,625 | - | £68,125 |
| England median annual salary | £70,000 | £51,250 | £55,000 |
| % change year-on-year | +36.59% | -6.82% | -4.35% |
All Generic Skills
London
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 London.
| Permanent vacancies with a requirement for generic IT skills | 5,741 | 6,719 | 7,439 |
| As % of all permanent jobs advertised in London | 41.01% | 43.60% | 40.60% |
| Number of salaries quoted | 3,398 | 3,503 | 5,621 |
| 10th Percentile | £35,750 | £45,000 | £40,000 |
| 25th Percentile | £50,000 | £56,250 | £56,250 |
| Median annual salary (50th Percentile) | £75,000 | £80,000 | £79,000 |
| Median % change year-on-year | -6.25% | +1.27% | +1.94% |
| 75th Percentile | £100,000 | £107,500 | £100,000 |
| 90th Percentile | £125,000 | £128,500 | £127,500 |
| England median annual salary | £55,000 | £60,000 | £60,000 |
| % change year-on-year | -8.33% | - | -7.69% |
AS400
Job Vacancy Trend in London
Historical trend showing the proportion of permanent IT job postings citing AS400 relative to all permanent IT jobs advertised in London.
AS400
Salary Trend in London
Salary distribution trend for jobs in London citing AS400.
AS400
Salary Histogram in London
Salary distribution for jobs citing AS400 in London over the 6 months to 13 January 2026.
AS400
Job Locations in London
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing AS400 within the London region over the 6 months to 13 January 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 |
|---|---|---|---|---|---|
| West London | - | 5 | £77,500 | - | |
| Central London | - | 2 | £67,500 | - | |
| AS400 England |
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AS400
Co-Occurring Skills & Capabilities in London 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: