Senior JavaScript Developer Jobs in Billericay

Senior JavaScript Developer
Essex > Billericay

The median Senior JavaScript Developer salary in Billericay is £70,000 per year, according to job vacancies posted during the 6 months leading to 1 May 2025.

The table below provides salary benchmarking and summary statistics, comparing them to the same period in the previous two years.

6 months to
1 May 2025
Same period 2024 Same period 2023
Rank 4 5 -
Rank change year-on-year +1 - -
Permanent jobs requiring a Senior JavaScript Developer 2 7 0
As % of all permanent jobs advertised in Billericay 20.00% 38.89% -
As % of the Job Titles category 20.00% 38.89% -
Number of salaries quoted 2 7 0
10th Percentile £61,500 £67,500 -
25th Percentile £63,750 £68,625 -
Median annual salary (50th Percentile) £70,000 £71,500 -
Median % change year-on-year -2.10% - -
75th Percentile £73,750 £73,250 -
90th Percentile £74,500 - -
Essex median annual salary £70,000 £71,500 £65,000
% change year-on-year -2.10% +10.00% -13.33%

All Permanent IT Job Vacancies
Billericay

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 10 18 26
% of permanent jobs with a recognized job title 100.00% 100.00% 86.67%
Number of salaries quoted 10 18 22
10th Percentile - £26,250 £27,200
25th Percentile £42,500 £27,813 £31,563
Median annual salary (50th Percentile) £51,250 £50,000 £57,500
Median % change year-on-year +2.50% -13.04% +161.36%
75th Percentile £73,750 £73,063 £75,938
90th Percentile £87,500 £73,250 £84,375
Essex median annual salary £45,000 £45,000 £47,500
% change year-on-year - -5.26% -

Senior JavaScript Developer
Job Vacancy Trend in Billericay

Job postings that featured Senior JavaScript Developer in the job title as a proportion of all IT jobs advertised in Billericay.

Job vacancy trend for Senior JavaScript Developer in Billericay

Senior JavaScript Developer
Salary Trend in Billericay

3-month moving average salary quoted in jobs citing Senior JavaScript Developer in Billericay.

Salary trend for Senior JavaScript Developer in Billericay

Senior JavaScript Developer Skill Set
Top 21 Co-occurring Skills and Capabilities in Billericay

For the 6 months to 1 May 2025, Senior JavaScript Developer job roles required the following skills and capabilities in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Billericay region featuring Senior JavaScript Developer in the job title.

1 2 (100.00%) JavaScript
1 2 (100.00%) E-Commerce
1 2 (100.00%) Front End Development
1 2 (100.00%) Vue
1 2 (100.00%) Greenfield Project
2 1 (50.00%) HTML
2 1 (50.00%) Progressive Web App
2 1 (50.00%) Social Skills
2 1 (50.00%) GraphQL
2 1 (50.00%) UX Design
2 1 (50.00%) HTML5
2 1 (50.00%) REST
2 1 (50.00%) Sass
2 1 (50.00%) Mentoring
2 1 (50.00%) User Experience
2 1 (50.00%) webpack
2 1 (50.00%) gulp
2 1 (50.00%) Agile
2 1 (50.00%) Retail
2 1 (50.00%) Client/Server
2 1 (50.00%) CSS

Senior JavaScript Developer Skill Set
Co-occurring Skills and Capabilities in Billericay 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:

Development Applications
1 1 (50.00%) gulp
1 1 (50.00%) webpack
General
1 1 (50.00%) Retail
1 1 (50.00%) Social Skills
Libraries, Frameworks & Software Standards
1 2 (100.00%) Vue
2 1 (50.00%) CSS
2 1 (50.00%) GraphQL
2 1 (50.00%) HTML
2 1 (50.00%) HTML5
2 1 (50.00%) REST
2 1 (50.00%) Sass
Miscellaneous
1 2 (100.00%) Greenfield Project
2 1 (50.00%) Client/Server
Processes & Methodologies
1 2 (100.00%) E-Commerce
1 2 (100.00%) Front End Development
2 1 (50.00%) Agile
2 1 (50.00%) Mentoring
2 1 (50.00%) Progressive Web App
2 1 (50.00%) User Experience
2 1 (50.00%) UX Design
Programming Languages
1 2 (100.00%) JavaScript