WebAssembly (Wasm)
England > London
The table below provides summary statistics and contractor rates for jobs advertised in London requiring WebAssembly skills. It covers contract job vacancies from the 6 months leading up to 20 November 2025, with comparisons to the same periods in the previous two years.
| 6 months to 20 Nov 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 387 | - | - |
| Rank change year-on-year | - | - | - |
| Contract jobs citing WebAssembly | 1 | 0 | 0 |
| As % of all contract jobs in London | 0.007% | - | - |
| As % of the Libraries, Frameworks & Software Standards category | 0.027% | - | - |
| Number of daily rates quoted | 1 | 0 | 0 |
| Median daily rate (50th Percentile) | £297 | - | - |
| England median daily rate | £297 | £375 | - |
| % change year-on-year | -20.80% | - | - |
All Software Libraries and Frameworks
London
WebAssembly 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 London.
| Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills | 3,737 | 4,094 | 5,157 |
| As % of all contract IT jobs advertised in London | 26.43% | 26.03% | 26.07% |
| Number of daily rates quoted | 2,544 | 2,689 | 3,886 |
| 10th Percentile | £363 | £375 | £400 |
| 25th Percentile | £425 | £463 | £475 |
| Median daily rate (50th Percentile) | £525 | £575 | £600 |
| Median % change year-on-year | -8.70% | -4.17% | - |
| 75th Percentile | £670 | £713 | £700 |
| 90th Percentile | £788 | £850 | £800 |
| England median daily rate | £507 | £550 | £550 |
| % change year-on-year | -7.82% | - | -4.51% |
| Number of hourly rates quoted | 32 | 21 | 37 |
| 10th Percentile | £31.77 | £35.00 | £33.80 |
| 25th Percentile | £42.50 | £38.25 | £36.84 |
| Median hourly rate | £55.00 | £45.00 | £58.00 |
| Median % change year-on-year | +22.22% | -22.41% | -6.83% |
| 75th Percentile | £63.19 | £61.43 | £72.00 |
| 90th Percentile | £85.95 | £71.00 | £87.94 |
| England median hourly rate | £55.00 | £65.00 | £55.00 |
| % change year-on-year | -15.38% | +18.18% | -15.38% |
WebAssembly
Job Vacancy Trend in London
Historical trend showing the proportion of contract IT job postings citing WebAssembly relative to all contract IT jobs advertised in London.
WebAssembly
Daily Rate Trend in London
Contractor daily rate distribution trend for jobs in London citing WebAssembly.
WebAssembly
Co-Occurring Skills & Capabilities in 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: