Chai Assertion Library (Chai.js)
UK > UK excluding London
The table below provides summary statistics and contractor rates for jobs advertised in the UK excluding London requiring Chai skills. It covers contract job vacancies from the 6 months leading up to 25 December 2025, with comparisons to the same periods in the previous two years.
| 6 months to 25 Dec 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | - | - | 392 |
| Rank change year-on-year | - | - | +92 |
| Contract jobs citing Chai | 0 | 0 | 1 |
| As % of all contract jobs in the UK excluding London | - | - | 0.005% |
| As % of the Libraries, Frameworks & Software Standards category | - | - | 0.029% |
| Number of daily rates quoted | 0 | 0 | 0 |
| Median daily rate (50th Percentile) | - | - | - |
| UK median daily rate | - | - | £650 |
| % change year-on-year | - | - | +9.47% |
All Software Libraries and Frameworks
UK excluding London
Chai 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 the UK excluding London.
| Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills | 3,325 | 2,657 | 3,413 |
| As % of all contract IT jobs advertised in the UK excluding London | 18.14% | 17.91% | 17.49% |
| Number of daily rates quoted | 2,180 | 1,655 | 2,340 |
| 10th Percentile | £332 | £340 | £325 |
| 25th Percentile | £402 | £406 | £413 |
| Median daily rate (50th Percentile) | £485 | £500 | £500 |
| Median % change year-on-year | -2.95% | - | -4.76% |
| 75th Percentile | £575 | £600 | £600 |
| 90th Percentile | £665 | £688 | £678 |
| UK median daily rate | £505 | £544 | £550 |
| % change year-on-year | -7.08% | -1.18% | -4.35% |
| Number of hourly rates quoted | 162 | 64 | 135 |
| 10th Percentile | £31.25 | £22.00 | £40.12 |
| 25th Percentile | £46.25 | £41.57 | £46.18 |
| Median hourly rate | £63.25 | £65.00 | £51.89 |
| Median % change year-on-year | -2.69% | +25.26% | -20.17% |
| 75th Percentile | £68.00 | £66.19 | £70.00 |
| 90th Percentile | £81.00 | £74.31 | £77.50 |
| UK median hourly rate | £59.86 | £62.50 | £52.50 |
| % change year-on-year | -4.22% | +19.05% | -19.23% |
Chai
Job Vacancy Trend in the UK excluding London
Historical trend showing the proportion of contract IT job postings citing Chai relative to all contract IT jobs advertised in the UK excluding London.
Chai
Daily Rate Trend in the UK excluding London
Contractor daily rate distribution trend for jobs in the UK excluding London citing Chai.
Chai
Hourly Rate Trend in the UK excluding London
Contractor hourly rate distribution trend for jobs in the UK excluding London citing Chai.
