OS/400 Contract Job Trends

IBM OS/400 (OS400)
UK

The table below provides summary statistics and contractor rates for jobs requiring OS/400 skills. It covers contract job vacancies from the 6 months leading up to 13 June 2026, with comparisons to the same periods in the previous two years.

6 months to
13 Jun 2026
Same period 2025 Same period 2024
Rank - 520 -
Rank change year-on-year - - -
Contract jobs citing OS/400 0 4 0
As % of all contract jobs in the UK - 0.014% -
As % of the Operating Systems category - 0.097% -
Number of daily rates quoted 0 3 0
Median daily rate (50th Percentile) - £374 -
UK excluding London median daily rate - £375 -

All Operating Systems
UK

OS/400 falls under the Operating Systems category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring operating system skills.

Contract vacancies with a requirement for operating system skills 4,777 4,120 5,874
As % of all contract IT jobs advertised in the UK 9.55% 13.96% 13.45%
Number of daily rates quoted 3,043 2,694 3,894
10th Percentile £188 £200 £188
25th Percentile £316 £313 £310
Median daily rate (50th Percentile) £460 £465 £475
Median % change year-on-year -1.08% -2.11% -5.00%
75th Percentile £575 £585 £588
90th Percentile £650 £675 £700
UK excluding London median daily rate £450 £450 £450
% change year-on-year - - -2.70%
Number of hourly rates quoted 338 198 413
10th Percentile £14.50 £15.19 £12.75
25th Percentile £19.00 £17.36 £15.76
Median hourly rate £27.94 £21.95 £23.00
Median % change year-on-year +27.29% -4.57% -50.80%
75th Percentile £63.75 £41.93 £62.50
90th Percentile £70.07 £68.00 £70.00
UK excluding London median hourly rate £27.50 £18.87 £24.18
% change year-on-year +45.73% -21.96% -40.43%

OS/400
Job Vacancy Trend

Historical trend showing the proportion of contract IT job postings citing OS/400 relative to all contract IT jobs advertised.

OS/400 job vacancy trend in the UK

OS/400
Daily Rate Trend

Contractor daily rate distribution trend for jobs in the UK citing OS/400.

Contractor daily rate distribution trend for jobs in the UK citing OS/400

OS/400
Hourly Rate Trend

Contractor hourly rate distribution trend for jobs in the UK citing OS/400.

Contractor hourly rate distribution trend for jobs in the UK citing OS/400