JavaScript (including ECMAScript)
Hertfordshire > Hatfield
The table below provides summary statistics for permanent job vacancies advertised in Hatfield 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 3 May 2025, comparing them to the same period in the previous two years.
6 months to 3 May 2025 |
Same period 2024 | Same period 2023 | |
---|---|---|---|
Rank | 11 | 19 | 42 |
Rank change year-on-year | +8 | +23 | -4 |
Permanent jobs citing JavaScript | 1 | 9 | 3 |
As % of all permanent jobs advertised in Hatfield | 3.85% | 7.14% | 1.92% |
As % of the Programming Languages category | 10.00% | 23.08% | 4.05% |
Number of salaries quoted | 0 | 5 | 3 |
10th Percentile | - | - | £40,500 |
25th Percentile | - | £50,000 | £45,000 |
Median annual salary (50th Percentile) | - | £55,000 | £55,000 |
Median % change year-on-year | - | - | +52.67% |
75th Percentile | - | £60,000 | £56,750 |
90th Percentile | - | - | £57,200 |
Hertfordshire median annual salary | £55,000 | £57,500 | £68,750 |
% change year-on-year | -4.35% | -16.36% | +20.61% |
All Programming Languages
Hatfield
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 Hatfield.
Permanent vacancies with a requirement for coding skills | 10 | 39 | 74 |
As % of all permanent jobs advertised in Hatfield | 38.46% | 30.95% | 47.44% |
Number of salaries quoted | 7 | 18 | 33 |
10th Percentile | £27,100 | - | £51,250 |
25th Percentile | £30,250 | £50,000 | £52,500 |
Median annual salary (50th Percentile) | £35,000 | £55,000 | £56,000 |
Median % change year-on-year | -36.36% | -1.79% | +12.00% |
75th Percentile | £37,500 | £81,250 | £62,500 |
90th Percentile | £52,900 | - | - |
Hertfordshire median annual salary | £62,000 | £57,500 | £60,000 |
% change year-on-year | +7.83% | -4.17% | +9.09% |
JavaScript
Job Vacancy Trend in Hatfield
Job postings citing JavaScript as a proportion of all IT jobs advertised in Hatfield.

JavaScript
Salary Trend in Hatfield
3-month moving average salary quoted in jobs citing JavaScript in Hatfield.
JavaScript
Co-occurring Skills and Capabilities in Hatfield 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: