IBM AS/400
London > Central London
The table below looks at the prevalence of the term AS400 in contract job vacancies in Central London. Included is a benchmarking guide to the contractor rates offered in vacancies that cited AS400 over the 6 months leading up to 29 November 2025, comparing them to the same period in the previous two years.
| 6 months to 29 Nov 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 127 | 131 | 151 |
| Rank change year-on-year | +4 | +20 | +45 |
| Contract jobs citing AS400 | 2 | 3 | 1 |
| As % of all contract jobs in Central London | 0.10% | 0.12% | 0.035% |
| As % of the Miscellaneous category | 0.26% | 0.40% | 0.11% |
| Number of daily rates quoted | 2 | 0 | 1 |
| 10th Percentile | - | - | - |
| 25th Percentile | £575 | - | £513 |
| Median daily rate (50th Percentile) | £600 | - | £525 |
| Median % change year-on-year | - | - | -8.70% |
| 75th Percentile | £625 | - | £538 |
| 90th Percentile | - | - | - |
| London median daily rate | £600 | £475 | £563 |
| % change year-on-year | +26.32% | -15.56% | -2.17% |
All Generic Skills
Central London
AS400 falls under the General and Transferable Skills category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring generic IT skills in Central London.
| Contract vacancies with a requirement for generic IT skills | 770 | 754 | 925 |
| As % of all contract IT jobs advertised in Central London | 39.29% | 31.17% | 32.00% |
| Number of daily rates quoted | 565 | 484 | 624 |
| 10th Percentile | £353 | £363 | £313 |
| 25th Percentile | £438 | £474 | £475 |
| Median daily rate (50th Percentile) | £550 | £593 | £600 |
| Median % change year-on-year | -7.17% | -1.25% | +1.05% |
| 75th Percentile | £675 | £710 | £725 |
| 90th Percentile | £775 | £838 | £838 |
| London median daily rate | £550 | £575 | £595 |
| % change year-on-year | -4.35% | -3.28% | -0.92% |
| Number of hourly rates quoted | 10 | 3 | 13 |
| 10th Percentile | £19.51 | £25.72 | £17.00 |
| 25th Percentile | £26.15 | £26.20 | £18.93 |
| Median hourly rate | £31.00 | £27.00 | £26.00 |
| Median % change year-on-year | +14.81% | +3.85% | -49.02% |
| 75th Percentile | £41.89 | £59.75 | £46.75 |
| 90th Percentile | £67.89 | £79.40 | £65.60 |
| London median hourly rate | £25.15 | £35.25 | £30.00 |
| % change year-on-year | -28.65% | +17.50% | -1.64% |
AS400
Job Vacancy Trend in Central London
Historical trend showing the proportion of contract IT job postings citing AS400 relative to all contract IT jobs advertised in Central London.
AS400
Daily Rate Trend in Central London
Contractor daily rate distribution trend for jobs in Central London citing AS400.
AS400
Hourly Rate Trend in Central London
Contractor hourly rate distribution trend for jobs in Central London citing AS400.
AS400
Contract Job Locations in Central London
The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing AS400 within the Central London region over the 6 months to 29 November 2025. 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 Contract IT Job Ads |
Median Daily Rate Past 6 Months |
Median Daily Rate % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| City of London | +7 | 2 | £600 | - | 3 |
| AS400 London |
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AS400
Co-Occurring Skills & Capabilities in Central 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:
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