The following table provides summary statistics for contract job vacancies advertised in Canary Wharf with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 3 months to 22 June 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.

JavaScript (including ECMAScript)
London / Canary Wharf
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 10 14 28
Rank change year-on-year +4 +14  
Contract jobs citing JavaScript 12 9 2
As % of all contract IT jobs advertised in Canary Wharf 11.21% 7.32% 1.20%
As % of the Programming Languages category 24.00% 20.00% 2.70%
Number of daily rates quoted 10 6 1
Median daily rate £650 £500 £450
Median daily rate % change year-on-year +30.00% +11.11%  
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £43.39 £37.50 £35.00
% change year-on-year +15.70% +7.14%  

JavaScript is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Canary Wharf with a requirement for programming language skills.

Contract Programming Language Skills
Canary Wharf
Contract job vacancies with a requirement for programming language skills 50 45 74
As % of all contract IT job vacancies advertised in Canary Wharf 46.73% 36.59% 44.58%
Number of daily rates quoted 43 30 56
Median daily rate £608 £475 £500
Median daily rate % change year-on-year +27.89% -5.00%  
90% offered a daily rate of more than £475 £325 £300
10% offered a daily rate of more than £750 £650 £550
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.50 £37.00 £36.00
% change year-on-year +14.86% +2.77%  

JavaScript
Job Vacancy Trend in Canary Wharf

The job posting trend of jobs advertised in Canary Wharf citing JavaScript as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

Job vacancy trend for JavaScript in Canary Wharf

JavaScript
Contractor Daily Rate Trend in Canary Wharf

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

Contractor daily rate trend for JavaScript in Canary Wharf

JavaScript
Contractor Daily Rate Histogram in Canary Wharf

The daily rate distribution of IT jobs citing JavaScript in Canary Wharf over the 3 months to 22 June 2017.

Contractor daily rate histogram for JavaScript in Canary Wharf

JavaScript
Contractor Hourly Rate Trend in Canary Wharf

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

Contractor hourly rate trend for JavaScript in Canary Wharf

For the 6 months to 22 June 2017, IT contractor jobs citing JavaScript 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 Canary Wharf region with a requirement for JavaScript.

1 20 (86.96%) HTML
2 16 (69.57%) AngularJS
3 13 (56.52%) HTML5
4 11 (47.83%) Agile Software Development
4 11 (47.83%) Front End Development
5 10 (43.48%) Big Data
5 10 (43.48%) Front Office
5 10 (43.48%) Finance
5 10 (43.48%) CSS
6 9 (39.13%) Banking
6 9 (39.13%) Computer Science
7 8 (34.78%) Degree
8 7 (30.43%) SQL
8 7 (30.43%) TDD
9 6 (26.09%) DevOps
9 6 (26.09%) Scrum
9 6 (26.09%) Test Automation
10 5 (21.74%) Open Source
10 5 (21.74%) Android
10 5 (21.74%) Apple iOS
10 5 (21.74%) CSS3
10 5 (21.74%) REST
10 5 (21.74%) Investment Banking
10 5 (21.74%) Java
10 5 (21.74%) .NET
10 5 (21.74%) Android Development
10 5 (21.74%) iOS Development
10 5 (21.74%) Twitter Bootstrap
11 4 (17.39%) TypeScript
11 4 (17.39%) Computer Science Degree

JavaScript
Co-occurring IT Skills in Canary Wharf 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 2 (8.70%) JBoss
2 1 (4.35%) Apache
2 1 (4.35%) Apache Spark
2 1 (4.35%) CMS
2 1 (4.35%) Confluence
2 1 (4.35%) Drupal
2 1 (4.35%) Oracle SOA Suite
2 1 (4.35%) Tomcat
2 1 (4.35%) Umbraco
2 1 (4.35%) WordPress
Applications
1 1 (4.35%) MS Visio
Cloud Services
1 2 (8.70%) Amazon AWS
1 2 (8.70%) PaaS
2 1 (4.35%) AWS Lambda
Communications & Networking
1 1 (4.35%) LDAP
1 1 (4.35%) NAS
1 1 (4.35%) SAN
Database & Business Intelligence
1 10 (43.48%) Big Data
2 2 (8.70%) Apache Cassandra
2 2 (8.70%) Data Mining
2 2 (8.70%) MongoDB
2 2 (8.70%) NoSQL
2 2 (8.70%) SQL Server
3 1 (4.35%) Data Warehouse
3 1 (4.35%) Impala
3 1 (4.35%) MySQL
3 1 (4.35%) Oracle Database
3 1 (4.35%) Relational Database
Development Applications
1 2 (8.70%) Grunt
1 2 (8.70%) gulp
1 2 (8.70%) JIRA
1 2 (8.70%) jspm
1 2 (8.70%) Karma Test Runner
1 2 (8.70%) Selenium
1 2 (8.70%) SpecFlow
1 2 (8.70%) TeamCity
2 1 (4.35%) Gradle
2 1 (4.35%) IntelliJ
2 1 (4.35%) Jenkins
2 1 (4.35%) JUnit
2 1 (4.35%) Maven
2 1 (4.35%) NetBeans
General
1 10 (43.48%) Finance
1 10 (43.48%) Front Office
2 9 (39.13%) Banking
3 5 (21.74%) Investment Banking
Job Titles
1 19 (82.61%) Developer
2 10 (43.48%) Front End Developer (Client-Side Developer)
2 10 (43.48%) JavaScript Developer
3 7 (30.43%) Angular Developer
3 7 (30.43%) HTML Developer
4 3 (13.04%) Architect
4 3 (13.04%) C# Developer
5 2 (8.70%) .NET Developer
5 2 (8.70%) Agile Developer
5 2 (8.70%) AWS Developer
5 2 (8.70%) Full Stack Developer
5 2 (8.70%) GUI Developer
5 2 (8.70%) Java Architect
5 2 (8.70%) Platform Architect
5 2 (8.70%) Web Developer
6 1 (4.35%) AWS Engineer
6 1 (4.35%) Cloud Engineer
6 1 (4.35%) Cloud Software Engineer
6 1 (4.35%) GUI Web Developer
6 1 (4.35%) Senior Agile Developer
Libraries, Frameworks & Software Standards
1 20 (86.96%) HTML
2 16 (69.57%) AngularJS
3 13 (56.52%) HTML5
4 10 (43.48%) CSS
5 5 (21.74%) .NET
5 5 (21.74%) CSS3
5 5 (21.74%) REST
5 5 (21.74%) Twitter Bootstrap
6 4 (17.39%) Node.js
6 4 (17.39%) XML
7 3 (13.04%) ASP.NET
7 3 (13.04%) PhoneGap
7 3 (13.04%) SOAP
8 2 (8.70%) .NET Framework
8 2 (8.70%) ASP.NET MVC
8 2 (8.70%) Entity Framework
8 2 (8.70%) J2EE
8 2 (8.70%) jQuery
8 2 (8.70%) JSON
8 2 (8.70%) Spring
Miscellaneous
1 9 (39.13%) Computer Science
2 2 (8.70%) Analytical Skills
3 1 (4.35%) Data Structures
3 1 (4.35%) Equities
3 1 (4.35%) Fat Client
3 1 (4.35%) Thin Client
Operating Systems
1 5 (21.74%) Android
1 5 (21.74%) Apple iOS
2 3 (13.04%) Linux
3 1 (4.35%) Unix
Processes & Methodologies
1 11 (47.83%) Agile Software Development
1 11 (47.83%) Front End Development
2 7 (30.43%) TDD
3 6 (26.09%) DevOps
3 6 (26.09%) Scrum
3 6 (26.09%) Test Automation
4 5 (21.74%) Android Development
4 5 (21.74%) iOS Development
4 5 (21.74%) Open Source
5 4 (17.39%) Kanban
5 4 (17.39%) Web Development
6 3 (13.04%) Enterprise Architecture
6 3 (13.04%) Multithreading
6 3 (13.04%) OO
6 3 (13.04%) SOLID
7 2 (8.70%) API Development
7 2 (8.70%) Data Modelling
7 2 (8.70%) MVC
7 2 (8.70%) Stakeholder Management
7 2 (8.70%) UML
Programming Languages
1 7 (30.43%) SQL
2 5 (21.74%) Java
3 4 (17.39%) TypeScript
4 3 (13.04%) C#
4 3 (13.04%) Python
5 2 (8.70%) Perl
5 2 (8.70%) VB
6 1 (4.35%) C
6 1 (4.35%) PHP
6 1 (4.35%) PL/SQL
6 1 (4.35%) Shell Script
Qualifications
1 8 (34.78%) Degree
2 4 (17.39%) Computer Science Degree
3 1 (4.35%) ISEB
3 1 (4.35%) ISTQB
System Software
1 1 (4.35%) Docker
Systems Management
1 1 (4.35%) NetBackup
1 1 (4.35%) Oracle RMAN
Vendors
1 3 (13.04%) Oracle
2 2 (8.70%) Sybase
3 1 (4.35%) Atlassian
3 1 (4.35%) CA Agile Central
3 1 (4.35%) Cloudera
3 1 (4.35%) GigaSpaces
3 1 (4.35%) IBM
3 1 (4.35%) Sencha
3 1 (4.35%) Veritas