AS400 Contract Job Trends in the City of London

IBM AS/400
Central London > City of London

The table below looks at the prevalence of the term AS400 in contract job vacancies in the City of London. Included is a benchmarking guide to the contractor rates offered in vacancies that cited AS400 over the 6 months leading up to 23 September 2026, comparing them to the same period in the previous two years.

6 months to
23 Sep 2026
Same period 2025 Same period 2024
Rank 138 120 119
Rank change year-on-year -18 -1 +35
Contract jobs citing AS400 2 4 5
As % of all contract jobs in the City of London 0.089% 0.23% 0.24%
As % of the Miscellaneous category 0.25% 0.60% 0.80%
Number of daily rates quoted 2 3 0
10th Percentile £469 - -
25th Percentile £478 £575 -
Median daily rate (50th Percentile) £513 £600 -
Median % change year-on-year -14.58% - -
75th Percentile £553 £675 -
90th Percentile £566 £705 -
Central London median daily rate £513 £600 -
% change year-on-year -14.58% - -

All Generic Skills
City of 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 the City of London.

Contract vacancies with a requirement for generic IT skills 812 670 626
As % of all contract IT jobs advertised in the City of London 36.31% 38.57% 30.17%
Number of daily rates quoted 551 467 385
10th Percentile £363 £345 £350
25th Percentile £463 £450 £475
Median daily rate (50th Percentile) £570 £600 £593
Median % change year-on-year -5.08% +1.27% -1.25%
75th Percentile £688 £692 £725
90th Percentile £775 £800 £838
Central London median daily rate £550 £575 £586
% change year-on-year -4.30% -1.92% -2.29%
Number of hourly rates quoted 12 9 5
10th Percentile £19.28 £16.96 £18.40
25th Percentile £21.75 £19.79 £22.00
Median hourly rate £28.07 £27.50 £27.00
Median % change year-on-year +2.05% +1.85% -23.94%
75th Percentile £41.69 £65.57 -
90th Percentile £62.80 £91.00 £66.30
Central London median hourly rate £35.41 £26.45 £25.79
% change year-on-year +33.88% +2.56% -26.31%

AS400
Job Vacancy Trend in the City of London

Historical trend showing the proportion of contract IT job postings citing AS400 relative to all contract IT jobs advertised in the City of London.

AS400 job vacancy trend in the City of London

AS400
Daily Rate Trend in the City of London

Contractor daily rate distribution trend for jobs in the City of London citing AS400.

Contractor daily rate distribution trend for jobs in the City of London citing AS400

AS400
Hourly Rate Trend in the City of London

Contractor hourly rate distribution trend for jobs in the City of London citing AS400.

Contractor hourly rate distribution trend for jobs in the City of London citing AS400

AS400
Co-Occurring Skills & Capabilities in the City of 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:

Application Platforms
1 1 (50.00%) MQSeries
Cloud Services
1 1 (50.00%) Azure
General
1 2 (100.00%) Banking
1 2 (100.00%) Finance
2 1 (50.00%) Private Banking
2 1 (50.00%) Social Skills
Job Titles
1 1 (50.00%) Analyst
1 1 (50.00%) Analyst Programmer
1 1 (50.00%) Applications Manager
1 1 (50.00%) Applications Support
1 1 (50.00%) Applications Support Manager
1 1 (50.00%) Programmer
1 1 (50.00%) RPG Analyst Programmer
1 1 (50.00%) RPG Programmer
1 1 (50.00%) Support Manager
Libraries, Frameworks & Software Standards
1 1 (50.00%) XML
Miscellaneous
1 1 (50.00%) iSeries
Processes & Methodologies
1 1 (50.00%) Agile
1 1 (50.00%) Budget Management
1 1 (50.00%) Business Continuity
1 1 (50.00%) Collaborative Working
1 1 (50.00%) Computer Science
1 1 (50.00%) Decision-Making
1 1 (50.00%) DevOps
1 1 (50.00%) Disaster Recovery
1 1 (50.00%) Incident Management
1 1 (50.00%) Integration Testing
1 1 (50.00%) ITIL
1 1 (50.00%) Performance Tuning
1 1 (50.00%) Portfolio Management
1 1 (50.00%) Problem-Solving
1 1 (50.00%) Resource Allocation
1 1 (50.00%) Scrum
1 1 (50.00%) Service Management
1 1 (50.00%) Software Testing
1 1 (50.00%) Stakeholder Management
1 1 (50.00%) Wealth Management
Programming Languages
1 2 (100.00%) RPG
2 1 (50.00%) COBOL
2 1 (50.00%) SQL
Qualifications
1 1 (50.00%) Computer Science Degree
1 1 (50.00%) Degree
1 1 (50.00%) PMI Certification
1 1 (50.00%) PMP
Quality Assurance & Compliance
1 1 (50.00%) QA
1 1 (50.00%) SLA
Vendors
1 2 (100.00%) IBM
2 1 (50.00%) Microsoft