JavaScript (including ECMAScript)
East of England > Hertfordshire
The table below provides summary statistics for permanent job vacancies advertised in Hertfordshire requiring JavaScript skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited JavaScript over the 6 months leading up to 31 May 2025, comparing them to the same period in the previous two years.
| 6 months to 31 May 2025 |
Same period 2024 | Same period 2023 | |
|---|---|---|---|
| Rank | 46 | 18 | 39 |
| Rank change year-on-year | -28 | +21 | -24 |
| Permanent jobs citing JavaScript | 46 | 158 | 100 |
| As % of all permanent jobs advertised in Hertfordshire | 5.51% | 7.63% | 5.84% |
| As % of the Programming Languages category | 18.47% | 29.81% | 17.61% |
| Number of salaries quoted | 16 | 145 | 38 |
| 10th Percentile | £33,750 | £40,000 | £46,000 |
| 25th Percentile | £36,250 | £45,000 | £52,813 |
| Median annual salary (50th Percentile) | £47,500 | £57,500 | £66,250 |
| Median % change year-on-year | -17.39% | -13.21% | +20.45% |
| 75th Percentile | £59,375 | £68,750 | £72,500 |
| 90th Percentile | £75,625 | £75,000 | £92,875 |
| East of England median annual salary | £66,212 | £52,500 | £55,000 |
| % change year-on-year | +26.12% | -4.55% | +10.00% |
All Programming Languages
Hertfordshire
JavaScript falls under the Programming Languages category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring coding skills in Hertfordshire.
| Permanent vacancies with a requirement for coding skills | 249 | 530 | 568 |
| As % of all permanent jobs advertised in Hertfordshire | 29.82% | 25.58% | 33.20% |
| Number of salaries quoted | 171 | 461 | 292 |
| 10th Percentile | £31,250 | £36,250 | £42,050 |
| 25th Percentile | £38,500 | £45,000 | £51,250 |
| Median annual salary (50th Percentile) | £57,000 | £57,500 | £60,000 |
| Median % change year-on-year | -0.87% | -4.17% | +9.09% |
| 75th Percentile | £70,000 | £67,500 | £72,500 |
| 90th Percentile | £87,500 | £76,000 | £80,000 |
| East of England median annual salary | £55,000 | £55,000 | £57,500 |
| % change year-on-year | - | -4.35% | +9.52% |
JavaScript
Job Vacancy Trend in Hertfordshire
Job postings citing JavaScript as a proportion of all IT jobs advertised in Hertfordshire.
JavaScript
Salary Trend in Hertfordshire
3-month moving average salary quoted in jobs citing JavaScript in Hertfordshire.
JavaScript
Salary Histogram in Hertfordshire
Salary distribution for jobs citing JavaScript in Hertfordshire over the 6 months to 31 May 2025.
JavaScript
Job Locations in Hertfordshire
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JavaScript within the Hertfordshire region over the 6 months to 31 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 Permanent IT Job Ads |
Median Salary Past 6 Months |
Median Salary % Change on Same Period Last Year |
Live Jobs |
|---|---|---|---|---|---|
| Hatfield | +8 | 4 | £37,500 | -31.82% | 7 |
| Watford | -15 | 4 | £55,000 | -4.35% | 12 |
| Hemel Hempstead | +11 | 2 | £70,000 | +16.67% | 3 |
| St Albans | +9 | 2 | £52,000 | -16.80% | 4 |
| Cheshunt | - | 2 | - | - | |
| Borehamwood | +5 | 1 | - | - | |
| Stevenage | +5 | 1 | £50,000 | -9.09% | 4 |
| Welwyn Garden City | -3 | 1 | £37,500 | -21.88% | 1 |
| Waltham Cross | - | 1 | - | - | |
| Hoddesdon | - | 1 | - | - | |
| Potters Bar | - | 1 | - | - | |
| Radlett | - | 1 | - | - | |
| JavaScript East of England |
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JavaScript
Co-occurring Skills and Capabilities in Hertfordshire 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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