The following table provides summary statistics for contract job vacancies with a requirement for WebSockets skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited WebSockets over the 3 months to 23 March 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
WebSockets
UK
Rank 545 590 606
Rank change year-on-year +45 +16  
Contract jobs citing WebSockets 54 38 15
As % of all contract IT jobs advertised in the UK 0.12% 0.072% 0.029%
As % of the Libraries, Frameworks & Software Standards category 0.39% 0.26% 0.11%
Number of daily rates quoted 43 31 10
Median daily rate £525 £550 £400
Median daily rate % change year-on-year -4.54% +37.50%  
90% offered a daily rate of more than £405 £433 £325
10% offered a daily rate of more than £601 £650 £480
UK excluding London median daily rate £419 £338 £375
% change year-on-year +24.07% -10.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

WebSockets is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
UK
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 14008 14779 13928
As % of all contract IT job vacancies advertised in the UK 31.32% 27.98% 26.60%
Number of daily rates quoted 9711 10236 9022
Median daily rate £425 £400 £388
Median daily rate % change year-on-year +6.25% +3.22%  
90% offered a daily rate of more than £300 £300 £278
10% offered a daily rate of more than £563 £550 £550
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 177 227 188
Median hourly rate £42.50 £38.75 £35.00
Median hourly rate % change year-on-year +9.67% +10.71%  
90% offered a hourly rate of more than £16.50 £13.75 £20.00
10% offered a hourly rate of more than £55.00 £57.75 £47.00
UK excluding London median hourly rate £40.00 £38.00 £36.00
% change year-on-year +5.26% +5.55%  

WebSockets
Job Vacancy Trend

The job posting trend of jobs advertised citing WebSockets as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for WebSockets in the UK

WebSockets
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing WebSockets.

Contractor daily rate trend for WebSockets in the UK

WebSockets
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing WebSockets over the 3 months to 23 March 2017.

Contractor daily rate histogram for WebSockets in the UK

WebSockets
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing WebSockets.

Contractor hourly rate trend for WebSockets in the UK

WebSockets
Top 19 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing WebSockets within the UK over the 3 months to 23 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +53 54 £525 -4.54% 23
London +31 46 £550 - 16
City of London +12 8 £600 +2.12% 2
South West +5 4 £438 -
Wiltshire +1 2 £313 -
East Midlands - 2 - -
Derby - 2 - -
Derbyshire - 2 - -
Yorkshire +9 1 £400 - 1
West Yorkshire +4 1 £400 -
South East - 1 - - 3
Oxfordshire - 1 - - 1
Bristol - 1 £438 -
Devon - 1 £438 -
Exeter - 1 £438 -
Oxford - 1 - - 1
Halifax - 1 £400 -
Chippenham - 1 £313 -
Swindon - 1 - -

WebSockets
Top 30 Related IT Skills

For the 6 months to 23 March 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 with a requirement for WebSockets.

1 107 (76.98%) JavaScript
2 76 (54.68%) HTML
3 73 (52.52%) AngularJS
4 71 (51.08%) HTML5
5 61 (43.88%) React
6 58 (41.73%) Git (software)
7 53 (38.13%) CSS
8 52 (37.41%) Agile Software Development
9 44 (31.65%) Node.js
10 43 (30.94%) Banking
11 39 (28.06%) CSS3
12 38 (27.34%) TDD
13 37 (26.62%) REST
14 33 (23.74%) Web Development
15 31 (22.30%) Java
16 30 (21.58%) Grunt
17 29 (20.86%) Microservices
17 29 (20.86%) Fintech
17 29 (20.86%) Selenium
18 28 (20.14%) SQL
18 28 (20.14%) Finance
19 27 (19.42%) jQuery
19 27 (19.42%) NoSQL
20 26 (18.71%) BDD
20 26 (18.71%) Jasmine
20 26 (18.71%) RESTful
20 26 (18.71%) ES6
20 26 (18.71%) webpack
21 23 (16.55%) Redux
22 22 (15.83%) Degree

WebSockets
Top Related IT Skills 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 5 (3.60%) Apache
1 5 (3.60%) Apache Spark
2 3 (2.16%) Tomcat
3 2 (1.44%) Elasticsearch
3 2 (1.44%) NServiceBus
4 1 (0.72%) JBoss
4 1 (0.72%) WebLogic
Applications
1 1 (0.72%) MS Excel
Cloud Services
1 18 (12.95%) Microsoft Azure
2 15 (10.79%) GitHub
3 4 (2.88%) Cloud Computing
4 3 (2.16%) Amazon AWS
4 3 (2.16%) Firebase
5 2 (1.44%) Google App Engine
5 2 (1.44%) Google Cloud Platform
5 2 (1.44%) Google Play
5 2 (1.44%) Slack
6 1 (0.72%) SaaS
Communications & Networking
1 16 (11.51%) AMQP
2 4 (2.88%) HTTP
3 3 (2.16%) Internet
4 1 (0.72%) SSL
4 1 (0.72%) TCP/IP
Database & Business Intelligence
1 27 (19.42%) NoSQL
2 18 (12.95%) SQL Server
3 16 (11.51%) Azure SQL Database
4 13 (9.35%) Relational Database
5 9 (6.47%) Hadoop
6 5 (3.60%) Apache Cassandra
6 5 (3.60%) MongoDB
7 4 (2.88%) Big Data
7 4 (2.88%) Redis
8 3 (2.16%) PostgreSQL
8 3 (2.16%) RDBMS
9 2 (1.44%) KDB
9 2 (1.44%) MySQL
9 2 (1.44%) Neo4j
Development Applications
1 58 (41.73%) Git (software)
2 30 (21.58%) Grunt
3 29 (20.86%) Selenium
4 26 (18.71%) Jasmine
4 26 (18.71%) webpack
5 22 (15.83%) Maven
6 18 (12.95%) gulp
6 18 (12.95%) Subversion
7 17 (12.23%) Mocha
7 17 (12.23%) SpecFlow
8 16 (11.51%) JIRA
9 15 (10.79%) Sonatype Nexus
9 15 (10.79%) TeamCity
10 8 (5.76%) Protractor
11 7 (5.04%) Bower
12 6 (4.32%) JUnit
13 5 (3.60%) Gradle
13 5 (3.60%) Mockito
14 4 (2.88%) Babel
14 4 (2.88%) Cucumber
General
1 43 (30.94%) Banking
2 28 (20.14%) Finance
3 20 (14.39%) Investment Banking
4 9 (6.47%) Front Office
5 3 (2.16%) Back Office
5 3 (2.16%) Games
5 3 (2.16%) Wholesale Banking
6 1 (0.72%) Avionics
6 1 (0.72%) Marketing
6 1 (0.72%) Retail
6 1 (0.72%) Telecoms
Job Titles
1 110 (79.14%) Developer
2 38 (27.34%) JavaScript Developer
3 31 (22.30%) Angular Developer
4 20 (14.39%) Front End Developer (Client-Side Developer)
5 19 (13.67%) Senior Developer
5 19 (13.67%) Web Developer
6 16 (11.51%) C# Developer
7 14 (10.07%) UI Developer
8 12 (8.63%) HTML Developer
8 12 (8.63%) Java Developer
9 11 (7.91%) .NET Developer
9 11 (7.91%) C# .NET Developer
10 10 (7.19%) Architect
10 10 (7.19%) ASP.NET Developer
10 10 (7.19%) C# ASP.NET Developer
10 10 (7.19%) Node.js Developer
11 9 (6.47%) C# WPF Developer
11 9 (6.47%) WPF Developer
12 8 (5.76%) Applications Developer
12 8 (5.76%) Azure Developer
Libraries, Frameworks & Software Standards
1 76 (54.68%) HTML
2 73 (52.52%) AngularJS
3 71 (51.08%) HTML5
4 61 (43.88%) React
5 53 (38.13%) CSS
6 44 (31.65%) Node.js
7 39 (28.06%) CSS3
8 37 (26.62%) REST
9 27 (19.42%) jQuery
10 26 (18.71%) RESTful
11 23 (16.55%) Redux
12 22 (15.83%) .NET
13 21 (15.11%) Angular 2
14 19 (13.67%) ASP.NET
14 19 (13.67%) Reactive Extensions
14 19 (13.67%) SignalR
15 18 (12.95%) ASP.NET Web API
16 17 (12.23%) Chai
16 17 (12.23%) D3.js
17 16 (11.51%) MSMQ
Miscellaneous
1 29 (20.86%) Fintech
2 18 (12.95%) Foreign Exchange (FX)
3 10 (7.19%) Equities
3 10 (7.19%) User Experience
4 8 (5.76%) Computer Science
4 8 (5.76%) Derivative
5 7 (5.04%) Mobile App
6 6 (4.32%) Fixed Income
7 3 (2.16%) Client/Server
8 2 (1.44%) Analytical Skills
8 2 (1.44%) Data Structures
8 2 (1.44%) Enterprise Software
8 2 (1.44%) Minimum Viable Product
9 1 (0.72%) Algorithms
9 1 (0.72%) Embedded Systems
9 1 (0.72%) Equity Derivative
9 1 (0.72%) Hedge funds
9 1 (0.72%) iPad
9 1 (0.72%) iPhone
Operating Systems
1 10 (7.19%) Linux
2 9 (6.47%) Android
3 8 (5.76%) Apple iOS
4 7 (5.04%) Unix
Processes & Methodologies
1 52 (37.41%) Agile Software Development
2 38 (27.34%) TDD
3 33 (23.74%) Web Development
4 29 (20.86%) Microservices
5 26 (18.71%) BDD
6 21 (15.11%) Web Application Development
7 20 (14.39%) Front End Development
8 19 (13.67%) Scrum
9 15 (10.79%) MVVM
9 15 (10.79%) Open Source
10 13 (9.35%) Cross-Browser Compatibility
11 11 (7.91%) E-Commerce
11 11 (7.91%) OO
12 10 (7.19%) B2B
12 10 (7.19%) Concurrent Programming
12 10 (7.19%) Domain-Driven Design
12 10 (7.19%) Responsive Web Design
12 10 (7.19%) Visualisation
13 9 (6.47%) Data Visualisation
13 9 (6.47%) Unit Testing
Programming Languages
1 107 (76.98%) JavaScript
2 31 (22.30%) Java
3 28 (20.14%) SQL
4 26 (18.71%) ES6
5 22 (15.83%) C#
6 13 (9.35%) Scala
7 10 (7.19%) Python
8 7 (5.04%) Shell Script
9 6 (4.32%) Ruby
10 4 (2.88%) PHP
11 3 (2.16%) CoffeeScript
11 3 (2.16%) Perl
11 3 (2.16%) TypeScript
11 3 (2.16%) VBScript
12 2 (1.44%) Apple Swift
12 2 (1.44%) C++
12 2 (1.44%) Objective-C
13 1 (0.72%) C
13 1 (0.72%) MATLAB
13 1 (0.72%) R
Qualifications
1 22 (15.83%) Degree
2 3 (2.16%) SC Cleared
2 3 (2.16%) Security Cleared
Quality Assurance & Compliance
1 7 (5.04%) MiFID
2 5 (3.60%) QA
System Software
1 8 (5.76%) Docker
2 6 (4.32%) HDFS
Systems Management
1 4 (2.88%) Ansible
2 2 (1.44%) Kubernetes
3 1 (0.72%) Opscode Chef
3 1 (0.72%) Puppet
Vendors
1 11 (7.91%) IBM
2 9 (6.47%) Apigee
3 4 (2.88%) Atlassian
3 4 (2.88%) CA
3 4 (2.88%) Google
3 4 (2.88%) MuleSoft
4 3 (2.16%) Salesforce.com
5 2 (1.44%) Apple
6 1 (0.72%) Oracle
6 1 (0.72%) Sencha
6 1 (0.72%) Twitter