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 WebSockets skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited WebSockets 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.

WebSockets
Central London > City of London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 230 226 270
Rank change year-on-year -4 +44 +18
Contract jobs citing WebSockets 19 21 3
As % of all contract IT jobs advertised in the City of London 0.27% 0.31% 0.032%
As % of the Libraries, Frameworks & Software Standards category 0.70% 0.87% 0.10%
Number of daily rates quoted 17 19 2
City of London median daily rate £530 £410 £413
Median daily rate % change year-on-year +29.27% -0.61% -5.71%
10th Percentile £465 £319 £369
90th Percentile £603 £650 £466
Central London median daily rate £530 £393 £413
% change year-on-year +35.03% -4.85% -2.94%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

WebSockets 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 2702 2420 2860
As % of all contract IT jobs advertised in the City of London 38.16% 36.07% 30.93%
Number of daily rates quoted 2267 2050 2362
City of London median daily rate £510 £475 £475
Median daily rate % change year-on-year +7.37% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £675 £638 £638
Central London median daily rate £500 £475 £456
% change year-on-year +5.26% +4.17% +7.29%
Number of hourly rates quoted 10 4 12
City of London median hourly rate £22.99 £35.00 £38.75
Median hourly rate % change year-on-year -34.31% -9.68% +49.04%
10th Percentile £20.28 £19.00 £10.33
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% +49.04%

WebSockets
Job Vacancy Trend in the City of London

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

Job vacancy trend for WebSockets in the City of London

WebSockets
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 WebSockets in the City of London.

Contractor daily rate trend for WebSockets in the City of London

WebSockets
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing WebSockets in the City of London over the 6 months to 18 November 2017.

Contractor daily rate histogram for WebSockets in the City of London

WebSockets
Contract Job Locations in the City of London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing WebSockets within the City of London region over the 6 months to 18 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Moorgate - 1 £500 -
WebSockets
Central London

For the 6 months to 18 November 2017, IT contractor jobs citing WebSockets 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 WebSockets.

1 14 (73.68%) HTML
1 14 (73.68%) JavaScript
2 13 (68.42%) HTML5
3 12 (63.16%) CSS
4 11 (57.89%) Agile Software Development
4 11 (57.89%) JSON
4 11 (57.89%) REST
4 11 (57.89%) CSS3
4 11 (57.89%) React
4 11 (57.89%) Redux
5 10 (52.63%) Node.js
6 8 (42.11%) AngularJS
7 7 (36.84%) webpack
7 7 (36.84%) Git (software)
7 7 (36.84%) Finance
8 6 (31.58%) ECMAScript
8 6 (31.58%) JIRA
8 6 (31.58%) Scrum
8 6 (31.58%) User Experience
8 6 (31.58%) React Native
8 6 (31.58%) ES6
8 6 (31.58%) Dependency Management
8 6 (31.58%) D3.js
8 6 (31.58%) Web Application Development
8 6 (31.58%) Apple iOS
8 6 (31.58%) Greenfield Project
8 6 (31.58%) npm
8 6 (31.58%) Babel
8 6 (31.58%) Performance Optimisation
9 5 (26.32%) BDD

WebSockets
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 3 (15.79%) NServiceBus
2 1 (5.26%) Gunicorn
Applications
1 1 (5.26%) Microsoft Excel
1 1 (5.26%) Microsoft Office
1 1 (5.26%) Microsoft Project
1 1 (5.26%) MS Visio
Cloud Services
1 6 (31.58%) npm
2 1 (5.26%) Amazon AWS
2 1 (5.26%) Microsoft Azure
Communications & Networking
1 3 (15.79%) Internet
2 1 (5.26%) HTTP
Database & Business Intelligence
1 4 (21.05%) MongoDB
1 4 (21.05%) NoSQL
2 1 (5.26%) PostgreSQL
2 1 (5.26%) SQL Server
2 1 (5.26%) VoltDB
Development Applications
1 7 (36.84%) Git (software)
1 7 (36.84%) webpack
2 6 (31.58%) Babel
2 6 (31.58%) JIRA
3 5 (26.32%) Subversion
4 3 (15.79%) SpecFlow
5 2 (10.53%) Grunt
5 2 (10.53%) Jenkins
5 2 (10.53%) JUnit
5 2 (10.53%) Mocha
6 1 (5.26%) Bitbucket
6 1 (5.26%) Cucumber
6 1 (5.26%) git-flow
6 1 (5.26%) gulp
6 1 (5.26%) Jasmine
6 1 (5.26%) LoadRunner
General
1 7 (36.84%) Finance
2 4 (21.05%) Banking
3 1 (5.26%) Wholesale Banking
Job Titles
1 18 (94.74%) Developer
2 5 (26.32%) Full Stack Developer
3 4 (21.05%) JavaScript Developer
4 3 (15.79%) Java Developer
4 3 (15.79%) Lead Developer
4 3 (15.79%) Senior Developer
4 3 (15.79%) Senior JavaScript Developer
4 3 (15.79%) Technical Developer
4 3 (15.79%) Technical Leader
5 2 (10.53%) Angular Developer
5 2 (10.53%) Front End Developer (Client-Side Developer)
5 2 (10.53%) HTML Developer
5 2 (10.53%) Node.js Developer
5 2 (10.53%) Web Developer
6 1 (5.26%) Front End Java Developer (Client-Side Java Developer)
6 1 (5.26%) Front End Web Developer (Client-Side Developer)
6 1 (5.26%) Performance Test Analyst
6 1 (5.26%) Python Developer
6 1 (5.26%) UI Developer
6 1 (5.26%) Web Test Analyst
Libraries, Frameworks & Software Standards
1 14 (73.68%) HTML
2 13 (68.42%) HTML5
3 12 (63.16%) CSS
4 11 (57.89%) CSS3
4 11 (57.89%) JSON
4 11 (57.89%) React
4 11 (57.89%) Redux
4 11 (57.89%) REST
5 10 (52.63%) Node.js
6 8 (42.11%) AngularJS
7 6 (31.58%) D3.js
7 6 (31.58%) React Native
8 4 (21.05%) Backbone.js
8 4 (21.05%) jQuery
8 4 (21.05%) XML
9 3 (15.79%) .NET
9 3 (15.79%) Ajax
9 3 (15.79%) ASP.NET
9 3 (15.79%) Reactive Extensions
9 3 (15.79%) Web Services
Miscellaneous
1 6 (31.58%) Greenfield Project
1 6 (31.58%) User Experience
2 3 (15.79%) Hedge funds
2 3 (15.79%) Mobile App
3 1 (5.26%) Fintech
3 1 (5.26%) Fixed Income
3 1 (5.26%) PKI
3 1 (5.26%) Smartphone
Operating Systems
1 6 (31.58%) Apple iOS
2 3 (15.79%) Android
3 1 (5.26%) Linux
Processes & Methodologies
1 11 (57.89%) Agile Software Development
2 6 (31.58%) Dependency Management
2 6 (31.58%) Performance Optimisation
2 6 (31.58%) Scrum
2 6 (31.58%) Web Application Development
3 5 (26.32%) BDD
3 5 (26.32%) Web Development
4 3 (15.79%) Complex Event Processing
4 3 (15.79%) CQRS
4 3 (15.79%) Open Source
4 3 (15.79%) SDLC
4 3 (15.79%) TDD
5 2 (10.53%) Benchmarking
5 2 (10.53%) OO
5 2 (10.53%) SEO
6 1 (5.26%) E-Commerce
6 1 (5.26%) Multithreading
6 1 (5.26%) Non-Functional Testing
6 1 (5.26%) Regression Testing
6 1 (5.26%) Test Automation
Programming Languages
1 14 (73.68%) JavaScript
2 6 (31.58%) ECMAScript
2 6 (31.58%) ES6
3 3 (15.79%) C#
3 3 (15.79%) Java
3 3 (15.79%) Python
4 1 (5.26%) GraphQL
4 1 (5.26%) SQL
System Software
1 2 (10.53%) Docker
Systems Management
1 1 (5.26%) Ansible
Vendors
1 4 (21.05%) Atlassian
2 3 (15.79%) Oracle