JSON
London > Central London
The table below provides summary statistics for contract job vacancies advertised in Central London requiring JSON skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited JSON over the 6 months leading up to 1 May 2025, comparing them to the same period in the previous two years.
| 6 months to 1 May 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 102 | 98 | 124 |
| Rank change year-on-year | -4 | +26 | +21 |
| Contract jobs citing JSON | 27 | 35 | 48 |
| As % of all contract jobs advertised in Central London | 1.35% | 1.43% | 1.25% |
| As % of the Libraries, Frameworks & Software Standards category | 5.20% | 6.54% | 4.44% |
| Number of daily rates quoted | 22 | 28 | 33 |
| 10th Percentile | £410 | £413 | £382 |
| 25th Percentile | £454 | £434 | £513 |
| Median daily rate (50th Percentile) | £506 | £525 | £595 |
| Median % change year-on-year | -3.57% | -11.76% | +2.59% |
| 75th Percentile | £630 | £719 | £788 |
| 90th Percentile | £661 | £775 | £820 |
| London median daily rate | £535 | £538 | £575 |
| % change year-on-year | -0.56% | -6.43% | -2.54% |
All Software Libraries and Frameworks
Central London
JSON falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all contract job vacancies requiring technical specification, industry standards, software libraries and framework skills in Central London.
| Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills | 519 | 535 | 1,081 |
| As % of all contract IT jobs advertised in Central London | 25.99% | 21.87% | 28.04% |
| Number of daily rates quoted | 345 | 386 | 707 |
| 10th Percentile | £409 | £413 | £413 |
| 25th Percentile | £463 | £463 | £500 |
| Median daily rate (50th Percentile) | £575 | £551 | £625 |
| Median % change year-on-year | +4.45% | -11.92% | +4.17% |
| 75th Percentile | £688 | £688 | £738 |
| 90th Percentile | £775 | £775 | £825 |
| London median daily rate | £575 | £575 | £600 |
| % change year-on-year | - | -4.17% | - |
JSON
Job Vacancy Trend in Central London
Job postings citing JSON as a proportion of all IT jobs advertised in Central London.
JSON
Contractor Daily Rate Trend in Central London
3-month moving average daily rate quoted in jobs citing JSON in Central London.
JSON
Daily Rate Histogram in Central London
Daily rate distribution for jobs citing JSON in Central London over the 6 months to 1 May 2025.
JSON
Contractor Hourly Rate Trend in Central London
3-month moving average hourly rates quoted in jobs citing JSON in Central London.
JSON
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 JSON within the Central London region over the 6 months to 1 May 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 | +3 | 26 | £500 | -4.76% | 10 |
| JSON London |
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JSON
Co-occurring Skills and Capabilities in Central London by Category
The follow tables expand on the table above by listing co-occurrences grouped by category. The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:
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