Period
to 24 November 2017

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Ext JS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Ext JS over the 6 months to 24 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.

Sencha Ext JS
Central London > City of London
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 238 236 251
Rank change year-on-year -2 +15 +47
Contract jobs citing Ext JS 3 4 20
As % of all contract IT jobs advertised in the City of London 0.042% 0.060% 0.22%
As % of the Libraries, Frameworks & Software Standards category 0.11% 0.17% 0.71%
Number of daily rates quoted 2 4 15
City of London median daily rate £475 £428 £450
Median daily rate % change year-on-year +11.11% -5.00% +6.51%
10th Percentile £463 £340 £319
90th Percentile £488 £510 £625
Central London median daily rate £475 £428 £593
% change year-on-year +11.11% -27.85% +40.24%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

Ext JS is in the Software Libraries and Frameworks 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 technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
City of London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2704 2392 2820
As % of all contract IT jobs advertised in the City of London 37.81% 35.88% 31.03%
Number of daily rates quoted 2277 2021 2329
City of London median daily rate £513 £475 £475
Median daily rate % change year-on-year +7.89% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £675 £650 £638
Central London median daily rate £500 £475 £463
% change year-on-year +5.26% +2.70% +8.82%
Number of hourly rates quoted 10 4 14
City of London median hourly rate £22.99 £35.00 £38.75
Median hourly rate % change year-on-year -34.31% -9.68% +29.17%
10th Percentile £20.28 £19.00 £12.40
90th Percentile £33.75 £56.31 £66.25
Central London median hourly rate £21.50 £35.00 £38.75
% change year-on-year -38.57% -9.68% +29.17%

Ext JS
Job Vacancy Trend in the City of London

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

Job vacancy trend for Ext JS in the City of London

Ext JS
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 Ext JS in the City of London.

Contractor daily rate trend for Ext JS in the City of London

For the 6 months to 24 November 2017, IT contractor jobs citing Ext JS 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 Ext JS.

1 3 (100.00%) JavaScript
2 2 (66.67%) Disaster Recovery
2 2 (66.67%) Telecoms
2 2 (66.67%) Scrum
2 2 (66.67%) Business Continuity
2 2 (66.67%) Agile Software Development
2 2 (66.67%) TDD
2 2 (66.67%) VPLS
2 2 (66.67%) C#
2 2 (66.67%) HTML
2 2 (66.67%) CSS
2 2 (66.67%) Web Services
2 2 (66.67%) Ethernet
2 2 (66.67%) Salesforce.com
2 2 (66.67%) Continuous Integration
2 2 (66.67%) TeamCity
2 2 (66.67%) Git (software)
2 2 (66.67%) Test Automation
2 2 (66.67%) Amazon AWS
2 2 (66.67%) HTML5
2 2 (66.67%) BDD
2 2 (66.67%) MongoDB
2 2 (66.67%) NoSQL
2 2 (66.67%) Unified Communications
2 2 (66.67%) Node.js
2 2 (66.67%) CSS3
2 2 (66.67%) Bitbucket
2 2 (66.67%) Sass
2 2 (66.67%) LESS
2 2 (66.67%) Jenkins

Ext JS
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 2 (66.67%) Amazon AWS
1 2 (66.67%) npm
1 2 (66.67%) Serverless
Communications & Networking
1 2 (66.67%) Ethernet
1 2 (66.67%) Unified Communications
1 2 (66.67%) VPLS
Database & Business Intelligence
1 2 (66.67%) MongoDB
1 2 (66.67%) NoSQL
Development Applications
1 2 (66.67%) Babel
1 2 (66.67%) Bitbucket
1 2 (66.67%) Git (software)
1 2 (66.67%) Jenkins
1 2 (66.67%) TeamCity
1 2 (66.67%) webpack
General
1 2 (66.67%) Telecoms
Job Titles
1 3 (100.00%) Developer
2 2 (66.67%) Full Stack Developer
2 2 (66.67%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 2 (66.67%) CSS
1 2 (66.67%) CSS3
1 2 (66.67%) HTML
1 2 (66.67%) HTML5
1 2 (66.67%) LESS
1 2 (66.67%) Node.js
1 2 (66.67%) React
1 2 (66.67%) Sass
1 2 (66.67%) Semantic UI
1 2 (66.67%) Serverless Framework
1 2 (66.67%) Web Services
Miscellaneous
1 2 (66.67%) Data Centre
1 2 (66.67%) User Experience
Processes & Methodologies
1 2 (66.67%) Adaptive Web Design
1 2 (66.67%) Agile Software Development
1 2 (66.67%) BDD
1 2 (66.67%) Business Continuity
1 2 (66.67%) Continuous Integration
1 2 (66.67%) DevOps
1 2 (66.67%) Disaster Recovery
1 2 (66.67%) Scrum
1 2 (66.67%) TDD
1 2 (66.67%) Test Automation
1 2 (66.67%) Transpiler
Programming Languages
1 3 (100.00%) JavaScript
2 2 (66.67%) C#
2 2 (66.67%) ES6
Quality Assurance & Compliance
1 1 (33.33%) QA
Vendors
1 2 (66.67%) Salesforce.com
1 2 (66.67%) ServiceNow
2 1 (33.33%) SAP