Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for CasperJS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CasperJS over the 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

CasperJS
Central London > City of London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 248 246 -
Rank change year-on-year -2 - +305
Contract jobs citing CasperJS 1 1 0
As % of all contract IT jobs advertised in the City of London 0.014% 0.015% -
As % of the Development Applications category 0.072% 0.081% -
Number of daily rates quoted 1 1 0
City of London median daily rate £500 £550 -
Median daily rate % change year-on-year -9.09% - -
Central London median daily rate £500 £550 -
% change year-on-year -9.09% - -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

CasperJS is in the Development Applications category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for development application skills.

All Development Application Skills
City of London
Contract vacancies with a requirement for development application skills 1380 1233 1342
As % of all contract IT jobs advertised in the City of London 19.49% 18.38% 14.51%
Number of daily rates quoted 1088 1011 1110
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £363 £338 £306
90th Percentile £638 £625 £638
Central London median daily rate £498 £475 £450
% change year-on-year +4.74% +5.56% +5.88%
Number of hourly rates quoted 3 1 4
City of London median hourly rate £25.50 £32.50 £37.50
Median hourly rate % change year-on-year -21.54% -13.33% +3.45%
10th Percentile £23.24 £31.25 £35.38
90th Percentile £59.45 £33.75 £50.13
Central London median hourly rate £30.00 £32.50 £37.50
% change year-on-year -7.69% -13.33% +3.45%

CasperJS
Job Vacancy Trend in the City of London

Job postings citing CasperJS as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for CasperJS in the City of London

CasperJS
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CasperJS in the City of London.

Contractor daily rate trend for CasperJS in the City of London

For the 6 months to 18 November 2017, IT contractor jobs citing CasperJS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for CasperJS.

1 1 (100.00%) HTML
1 1 (100.00%) JavaScript
1 1 (100.00%) .NET
1 1 (100.00%) CSS
1 1 (100.00%) MVC
1 1 (100.00%) Agile Software Development
1 1 (100.00%) TDD
1 1 (100.00%) Content Management
1 1 (100.00%) Marketing
1 1 (100.00%) Unit Testing
1 1 (100.00%) Git (software)
1 1 (100.00%) Multivariate Testing
1 1 (100.00%) HTML5
1 1 (100.00%) Mocha
1 1 (100.00%) NoSQL
1 1 (100.00%) REST
1 1 (100.00%) CSS3
1 1 (100.00%) Marketing Strategy
1 1 (100.00%) D3.js
1 1 (100.00%) Jasmine
1 1 (100.00%) Sass
1 1 (100.00%) Ember.js
1 1 (100.00%) AngularJS
1 1 (100.00%) PhantomJS
1 1 (100.00%) ASP.NET Web API
1 1 (100.00%) User Experience
1 1 (100.00%) React
1 1 (100.00%) webpack
1 1 (100.00%) SDLC
1 1 (100.00%) gulp

CasperJS
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:

Cloud Services
1 1 (100.00%) npm
Database & Business Intelligence
1 1 (100.00%) NoSQL
Development Applications
1 1 (100.00%) Git (software)
1 1 (100.00%) gulp
1 1 (100.00%) Jasmine
1 1 (100.00%) Mocha
1 1 (100.00%) PhantomJS
1 1 (100.00%) webpack
General
1 1 (100.00%) Marketing
Job Titles
1 1 (100.00%) Developer
Libraries, Frameworks & Software Standards
1 1 (100.00%) .NET
1 1 (100.00%) AngularJS
1 1 (100.00%) ASP.NET Web API
1 1 (100.00%) CSS
1 1 (100.00%) CSS3
1 1 (100.00%) D3.js
1 1 (100.00%) Ember.js
1 1 (100.00%) Enzyme
1 1 (100.00%) HTML
1 1 (100.00%) HTML5
1 1 (100.00%) Jest
1 1 (100.00%) React
1 1 (100.00%) React Native
1 1 (100.00%) Redux
1 1 (100.00%) REST
1 1 (100.00%) Sass
1 1 (100.00%) Vue (Vue.js)
Miscellaneous
1 1 (100.00%) User Experience
Processes & Methodologies
1 1 (100.00%) A/B Testing
1 1 (100.00%) Agile Software Development
1 1 (100.00%) Content Management
1 1 (100.00%) Cross-Browser Compatibility
1 1 (100.00%) Marketing Strategy
1 1 (100.00%) Mobile First
1 1 (100.00%) Multivariate Testing
1 1 (100.00%) MVC
1 1 (100.00%) SDLC
1 1 (100.00%) TDD
1 1 (100.00%) Unit Testing
Programming Languages
1 1 (100.00%) ES6
1 1 (100.00%) JavaScript