The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Firebug skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Firebug over the 3 months to 29 April 2017 with a comparison to the same period in the previous 2 years.

Firebug
London / City of London
3 months to
29 Apr 2017
Same period 2016 Same period 2015
Rank - - 323
Permanent jobs citing Firebug 0 0 2
As % of all permanent IT jobs advertised in the City of London - - 0.019%
As % of the Development Applications category - - 0.14%
Number of salaries quoted 0 0 2
Median salary - - £38,500
UK excluding London median salary £29,500 £25,000 £38,500
% change year-on-year +18.00% -35.06%  

Firebug is in the development application skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for development application skills.

Development Application Skills
City of London
Permanent job vacancies with a requirement for development application skills 1102 1250 1406
As % of all permanent IT job vacancies advertised in the City of London 20.67% 17.75% 13.34%
Number of salaries quoted 987 1135 1224
Median salary £62,500 £60,000 £55,000
Median salary % change year-on-year +4.16% +9.09%  
90% offered a salary of more than £45,000 £40,000 £40,000
10% offered a salary of more than £85,000 £70,000 £80,000
UK excluding London median salary £42,500 £42,500 £42,000
% change year-on-year - +1.19%  

Firebug
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Firebug as a proportion of all permanent or contract IT jobs with a match in the Development Applications category.

Job vacancy trend for Firebug in the City of London

Firebug
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Firebug in the City of London.

Salary trend for Firebug in the City of London

For the 6 months to 29 April 2017, IT jobs citing Firebug also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for Firebug.

1 7 (100.00%) HTML
1 7 (100.00%) JavaScript
1 7 (100.00%) Perl
1 7 (100.00%) CSS
1 7 (100.00%) Python
1 7 (100.00%) Degree
1 7 (100.00%) Computer Science
2 6 (85.71%) JSON
2 6 (85.71%) JIRA
2 6 (85.71%) CMS
2 6 (85.71%) Ruby
2 6 (85.71%) C#
2 6 (85.71%) Web Development
2 6 (85.71%) PHP
2 6 (85.71%) B2B
2 6 (85.71%) Apple
2 6 (85.71%) Android
2 6 (85.71%) RESTful
2 6 (85.71%) SaaS
2 6 (85.71%) Apple iOS
2 6 (85.71%) Digital Media
2 6 (85.71%) Cross-Browser Compatibility
3 1 (14.29%) CSS3
3 1 (14.29%) HTML5
3 1 (14.29%) Service Delivery
3 1 (14.29%) Finance
3 1 (14.29%) BGP
3 1 (14.29%) SSL
3 1 (14.29%) Java
3 1 (14.29%) HTTP

Firebug
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 6 (85.71%) CMS
Cloud Services
1 6 (85.71%) SaaS
Communications & Networking
1 1 (14.29%) BGP
1 1 (14.29%) DNS
1 1 (14.29%) HTTP
1 1 (14.29%) SSL
1 1 (14.29%) Wireshark
Development Applications
1 6 (85.71%) JIRA
2 1 (14.29%) Fiddler
General
1 1 (14.29%) Finance
Job Titles
1 6 (85.71%) JavaScript Engineer
1 6 (85.71%) Support Engineer
1 6 (85.71%) Technical Engineer
1 6 (85.71%) Technical Support
1 6 (85.71%) Technical Support Engineer
1 6 (85.71%) Web Engineer
1 6 (85.71%) Web Support Engineer
2 1 (14.29%) Analyst
2 1 (14.29%) Performance Analyst
2 1 (14.29%) Performance Engineer
Libraries, Frameworks & Software Standards
1 7 (100.00%) CSS
1 7 (100.00%) HTML
2 6 (85.71%) JSON
2 6 (85.71%) RESTful
3 1 (14.29%) Ajax
3 1 (14.29%) CSS3
3 1 (14.29%) HTML5
3 1 (14.29%) JSP
Miscellaneous
1 7 (100.00%) Computer Science
2 6 (85.71%) Digital Media
Operating Systems
1 6 (85.71%) Android
1 6 (85.71%) Apple iOS
Processes & Methodologies
1 6 (85.71%) B2B
1 6 (85.71%) Cross-Browser Compatibility
1 6 (85.71%) Web Development
2 1 (14.29%) Data Analysis
2 1 (14.29%) Financial Modelling
2 1 (14.29%) Service Delivery
2 1 (14.29%) Statistics
Programming Languages
1 7 (100.00%) JavaScript
1 7 (100.00%) Perl
1 7 (100.00%) Python
2 6 (85.71%) C#
2 6 (85.71%) PHP
2 6 (85.71%) Ruby
3 1 (14.29%) Java
Qualifications
1 7 (100.00%) Degree
Vendors
1 6 (85.71%) Apple