Entity-Relationship Diagram (ER Diagram)
London > Central London
The table below provides summary statistics and contractor rates for jobs advertised in Central London requiring ERD skills. It covers contract job vacancies from the 6 months leading up to 2 December 2025, with comparisons to the same periods in the previous two years.
| 6 months to 2 Dec 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 131 | 134 | - |
| Rank change year-on-year | +3 | - | - |
| Contract jobs citing ERD | 1 | 1 | 0 |
| As % of all contract jobs in Central London | 0.051% | 0.042% | - |
| As % of the Processes & Methodologies category | 0.055% | 0.046% | - |
| Number of daily rates quoted | 1 | 0 | 0 |
| 10th Percentile | - | - | - |
| 25th Percentile | £713 | - | - |
| Median daily rate (50th Percentile) | £725 | - | - |
| 75th Percentile | £738 | - | - |
| 90th Percentile | - | - | - |
| London median daily rate | £725 | - | £700 |
| % change year-on-year | - | - | -6.67% |
All Process and Methodology Skills
Central London
ERD falls under the Processes and Methodologies category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring process or methodology skills in Central London.
| Contract vacancies with a requirement for process or methodology skills | 1,808 | 2,181 | 2,547 |
| As % of all contract IT jobs advertised in Central London | 92.10% | 91.52% | 89.37% |
| Number of daily rates quoted | 1,255 | 1,366 | 1,812 |
| 10th Percentile | £340 | £363 | £363 |
| 25th Percentile | £425 | £473 | £463 |
| Median daily rate (50th Percentile) | £550 | £575 | £575 |
| Median % change year-on-year | -4.35% | - | - |
| 75th Percentile | £669 | £688 | £690 |
| 90th Percentile | £750 | £778 | £825 |
| London median daily rate | £525 | £550 | £568 |
| % change year-on-year | -4.55% | -3.08% | -3.81% |
| Number of hourly rates quoted | 26 | 28 | 18 |
| 10th Percentile | £19.98 | £19.90 | £17.00 |
| 25th Percentile | £25.47 | £26.60 | £18.93 |
| Median hourly rate | £31.00 | £35.00 | £25.50 |
| Median % change year-on-year | -11.43% | +37.25% | -50.00% |
| 75th Percentile | £46.11 | £48.13 | £51.44 |
| 90th Percentile | £60.25 | £112.00 | £67.63 |
| London median hourly rate | £29.50 | £37.25 | £36.28 |
| % change year-on-year | -20.81% | +2.67% | -9.30% |
ERD
Job Vacancy Trend in Central London
Historical trend showing the proportion of contract IT job postings citing ERD relative to all contract IT jobs advertised in Central London.
ERD
Daily Rate Trend in Central London
Contractor daily rate distribution trend for jobs in Central London citing ERD.
ERD
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 ERD within the Central London region over the 6 months to 2 December 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 | -4 | 1 | £725 | - | 1 |
| ERD London |
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ERD
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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