Senior JavaScript Developer
Essex > Billericay
The median Senior JavaScript Developer salary in Billericay is £75,000 per year, according to job vacancies posted during the 6 months leading to 19 December 2025.
The table below compares current salary benchmarking and summary statistics with the previous two years.
|
|
6 months to
19 Dec 2025 |
Same period 2024 |
Same period 2023 |
| Rank |
4 |
6 |
- |
| Rank change year-on-year |
+2 |
- |
- |
| Permanent jobs requiring a Senior JavaScript Developer |
2 |
1 |
0 |
| As % of all permanent jobs in Billericay |
25.00% |
5.88% |
- |
| As % of the Job Titles category |
25.00% |
5.88% |
- |
| Number of salaries quoted |
2 |
1 |
0 |
| Median annual salary (50th Percentile) |
£75,000 |
£65,000 |
- |
| Median % change year-on-year |
+15.38% |
- |
- |
| Essex median annual salary |
£75,000 |
£65,000 |
- |
| % change year-on-year |
+15.38% |
- |
- |
For comparison with the information above, the following table provides summary statistics for all permanent IT job vacancies in Billericay. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of permanent jobs in our overall sample.
| Permanent vacancies in Billericay with a recognized job title |
8 |
17 |
6 |
| % of permanent jobs with a recognized job title |
100.00% |
100.00% |
100.00% |
| Number of salaries quoted |
5 |
17 |
5 |
| 10th Percentile |
£48,000 |
- |
- |
| 25th Percentile |
- |
£42,500 |
- |
| Median annual salary (50th Percentile) |
£75,000 |
£50,000 |
£39,085 |
| Median % change year-on-year |
+50.00% |
+27.93% |
-46.09% |
| 75th Percentile |
£75,900 |
£57,500 |
- |
| 90th Percentile |
- |
- |
£79,384 |
| Essex median annual salary |
£45,000 |
£51,000 |
£54,000 |
| % change year-on-year |
-11.76% |
-5.56% |
+8.00% |
Senior JavaScript Developer
Job Vacancy Trend in Billericay
Historical trend showing the proportion of permanent IT job postings featuring 'Senior JavaScript Developer' in the job title relative to all permanent IT jobs advertised in Billericay.
Senior JavaScript Developer
Salary Trend in Billericay
Salary distribution trend for Senior JavaScript Developer job vacancies in Billericay.
Senior JavaScript Developer Skill Set
Top 4 Co-Occurring Skills & Capabilities in Billericay
For the 6 months to 19 December 2025, Senior JavaScript Developer job roles required the following skills and capabilities in order of popularity.
The figures indicate the absolute number of co-occurrences and as a proportion of all permanent job ads across the Billericay region featuring Senior JavaScript Developer in the job title.
Senior JavaScript Developer Skill Set
Co-Occurring Skills & Capabilities in Billericay 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:
