Chai Assertion Library (Chai.js)
UK > England
The table below provides summary statistics for contract job vacancies advertised in England requiring Chai skills. It includes a benchmarking guide to the contractor rates offered in vacancies that cited Chai 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 | 484 | 540 | 643 |
| Rank change year-on-year | +56 | +103 | +84 |
| Contract jobs citing Chai | 1 | 2 | 10 |
| As % of all contract jobs advertised in England | 0.004% | 0.005% | 0.020% |
| As % of the Libraries, Frameworks & Software Standards category | 0.018% | 0.027% | 0.086% |
| Number of daily rates quoted | 1 | 2 | 7 |
| 10th Percentile | - | £508 | £520 |
| 25th Percentile | £525 | £519 | £525 |
| Median daily rate (50th Percentile) | £550 | £538 | £570 |
| Median % change year-on-year | +2.33% | -5.70% | +14.00% |
| 75th Percentile | £575 | £556 | £573 |
| 90th Percentile | - | £568 | £575 |
| UK median daily rate | £550 | £538 | £570 |
| % change year-on-year | +2.33% | -5.70% | +26.67% |
All Software Libraries and Frameworks
England
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 England.
| Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills | 5,454 | 7,511 | 11,676 |
| As % of all contract IT jobs advertised in England | 22.39% | 20.19% | 23.14% |
| Number of daily rates quoted | 3,783 | 5,341 | 8,633 |
| 10th Percentile | £368 | £350 | £400 |
| 25th Percentile | £425 | £430 | £463 |
| Median daily rate (50th Percentile) | £530 | £550 | £563 |
| Median % change year-on-year | -3.64% | -2.22% | - |
| 75th Percentile | £669 | £675 | £688 |
| 90th Percentile | £800 | £775 | £798 |
| UK median daily rate | £525 | £530 | £550 |
| % change year-on-year | -0.94% | -3.64% | - |
| Number of hourly rates quoted | 100 | 218 | 138 |
| 10th Percentile | £30.13 | £22.27 | £28.73 |
| 25th Percentile | £51.25 | £43.00 | £48.88 |
| Median hourly rate | £65.00 | £46.18 | £65.00 |
| Median % change year-on-year | +40.75% | -28.95% | +32.65% |
| 75th Percentile | £68.19 | £65.00 | £75.00 |
| 90th Percentile | £82.19 | £75.00 | £80.08 |
| UK median hourly rate | £65.00 | £46.18 | £65.00 |
| % change year-on-year | +40.75% | -28.95% | +32.65% |
Chai
Job Vacancy Trend in England
Job postings citing Chai as a proportion of all IT jobs advertised in England.
Chai
Contractor Daily Rate Trend in England
3-month moving average daily rate quoted in jobs citing Chai in England.
Chai
Contractor Hourly Rate Trend in England
3-month moving average hourly rates quoted in jobs citing Chai in England.
Chai
Contract Job Locations in England
The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Chai within the England 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 |
|---|---|---|---|---|---|
| North West | - | 1 | £550 | - | |
| North of England | - | 1 | £550 | - | |
| Chai UK |
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Chai
Co-occurring Skills and Capabilities in England 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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