JavaScript Developer Contracts in London

The median contractor rate for a JavaScript Developer was £500 per day in advertised job vacancies in London during the 3 months to 23 June 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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 Developer England / London
Location	3 months to 23 Jun 2017	Same period 2016	Same period 2015
Rank	88	93	105
Rank change year-on-year	+5	+12
Contract jobs requiring a JavaScript Developer	596	566	503
As % of all contract IT jobs advertised in London	2.88%	2.62%	2.15%
As % of the Job Titles category	3.04%	2.75%	2.27%
Number of daily rates quoted	480	484	390
Median daily rate	£500	£450	£400
Median daily rate % change year-on-year	+11.11%	+12.50%
90% offered a daily rate of more than	£386	£350	£309
10% offered a daily rate of more than	£625	£575	£532
UK excluding London median daily rate	£400	£375	£350
% change year-on-year	+6.66%	+7.14%
Number of hourly rates quoted	1	0	1
Median hourly rate	£30.00	-	£19.72
UK excluding London median hourly rate	£47.50	-	£22.00

The next table is for comparison with the above and includes summary statistics for all job roles in contract job vacancies advertised in London. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of contract jobs in our overall sample.

Contract IT Job Roles London
Contract job vacancies with a job title containing a recognized job role	19622	20610	22172
As % of all contract IT job vacancies advertised in London	94.89%	95.28%	94.63%
Number of daily rates quoted	14013	14955	15445
Median daily rate	£500	£463	£445
Median daily rate % change year-on-year	+8.10%	+3.93%
90% offered a daily rate of more than	£315	£295	£275
10% offered a daily rate of more than	£650	£625	£603
UK excluding London median daily rate	£400	£400	£370
% change year-on-year	-	+8.10%
Number of hourly rates quoted	248	227	383
Median hourly rate	£19.82	£17.89	£18.70
Median hourly rate % change year-on-year	+10.81%	-4.35%
90% offered a hourly rate of more than	£12.50	£12.00	£11.00
10% offered a hourly rate of more than	£47.83	£42.50	£52.17
UK excluding London median hourly rate	£17.50	£17.45	£16.14
% change year-on-year	+0.28%	+8.11%

JavaScript Developer
Job Vacancy Trend in London

The job posting trend of jobs advertised in London that featured JavaScript Developer in the job title.

Job vacancy trend for JavaScript Developer in London

JavaScript Developer
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JavaScript Developer in London

JavaScript Developer
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript Developer in London over the 3 months to 23 June 2017.

Contractor daily rate histogram for JavaScript Developer in London

JavaScript Developer
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for JavaScript Developer in London

JavaScript Developer
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript Developer within the London region over the 3 months to 23 June 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
City of London	+6	89	£520	+30.00%	31
Canary Wharf	+8	9	£650	+10.63%
Croydon	-12	6	£400	+3.22%
Moorgate	-	3	£550	-
Twickenham	+4	2	£475	-
West End of London	+6	1	£475	+18.75%	12
Brentford	-	1	-	-
Feltham	-	1	£351	-
Hayes	-	1	£390	-
Hounslow	-	1	£375	-
Surbiton	-	1	£425	-
Paddington	-	1	£515	-
Southwark	-	1	£350	-
Chiswick	-	1	£375	-
JavaScript Developer England

JavaScript Developer Skill Set
Top 30 Co-occurring IT Skills in London

For the 6 months to 23 June 2017, JavaScript Developer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region featuring JavaScript Developer in the job title.

1	1087 (100.00%)	JavaScript
2	721 (66.33%)	HTML
3	662 (60.90%)	CSS
4	564 (51.89%)	AngularJS
5	557 (51.24%)	Agile Software Development
6	472 (43.42%)	HTML5
7	457 (42.04%)	React
8	417 (38.36%)	Node.js
9	386 (35.51%)	TDD
10	349 (32.11%)	Front End Development
11	337 (31.00%)	CSS3
12	231 (21.25%)	Java
13	223 (20.52%)	Sass
14	202 (18.58%)	Finance
15	200 (18.40%)	OO

16	189 (17.39%)	ES6
17	184 (16.93%)	Banking
18	180 (16.56%)	jQuery
19	179 (16.47%)	User Experience
20	177 (16.28%)	Scrum
21	176 (16.19%)	Git (software)
22	156 (14.35%)	Redux
23	153 (14.08%)	BDD
24	140 (12.88%)	C#
25	137 (12.60%)	Jasmine
26	132 (12.14%)	gulp
27	129 (11.87%)	.NET
28	128 (11.78%)	Web Development
29	114 (10.49%)	RESTful
29	114 (10.49%)	Grunt

JavaScript Developer Skill Set
Co-occurring IT Skills in 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
Applications
Business Applications
Cloud Services
Communications & Networking
Database & Business Intelligence
Development Applications
General
Libraries, Frameworks & Software Standards
Miscellaneous
Operating Systems
Processes & Methodologies
Programming Languages
Qualifications
Quality Assurance & Compliance
System Software
Systems Management
Vendors

Application Platforms
1	27 (2.48%)	CMS
2	20 (1.84%)	Adobe Experience Manager
3	19 (1.75%)	Elasticsearch
4	18 (1.66%)	Apache Spark
5	12 (1.10%)	Confluence
6	8 (0.74%)	SharePoint
7	7 (0.64%)	JBoss
8	6 (0.55%)	Oracle Workflow
8	6 (0.55%)	WildFly
9	5 (0.46%)	Apache
9	5 (0.46%)	Cloud Foundry
9	5 (0.46%)	Drupal
9	5 (0.46%)	EPiServer
10	4 (0.37%)	Sitecore CMS
10	4 (0.37%)	WordPress
11	3 (0.28%)	GeoServer
11	3 (0.28%)	Tomcat
12	2 (0.18%)	DNN
12	2 (0.18%)	Documentum
12	2 (0.18%)	Mule

Applications
1	25 (2.30%)	Photoshop
2	9 (0.83%)	OmniGraffle
3	8 (0.74%)	Adobe Creative Suite
4	6 (0.55%)	Microsoft Excel
5	2 (0.18%)	Adobe Illustrator
6	1 (0.092%)	GIMP

Business Applications
1	4 (0.37%)	Eloqua
2	2 (0.18%)	SAP Oil and Gas
3	1 (0.092%)	Payment Gateway
3	1 (0.092%)	Sage CRM

Cloud Services
1	46 (4.23%)	Amazon AWS
2	22 (2.02%)	GitHub
3	19 (1.75%)	Microsoft Azure
4	16 (1.47%)	SaaS
5	4 (0.37%)	Google Analytics
6	3 (0.28%)	Google App Engine
6	3 (0.28%)	Google Cloud Platform
6	3 (0.28%)	Heroku
6	3 (0.28%)	IaaS
6	3 (0.28%)	PaaS
7	2 (0.18%)	Cloud Computing
8	1 (0.092%)	Amazon EC2
8	1 (0.092%)	Amazon SQS
8	1 (0.092%)	AWS CloudFormation
8	1 (0.092%)	AWS Lambda
8	1 (0.092%)	BrowserStack
8	1 (0.092%)	Firebase
8	1 (0.092%)	Office 365
8	1 (0.092%)	Trello
8	1 (0.092%)	vREST

Communications & Networking
1	18 (1.66%)	Internet
2	7 (0.64%)	HTTP
3	5 (0.46%)	Intranet
4	3 (0.28%)	IP Telephony
5	2 (0.18%)	Ethernet
5	2 (0.18%)	FTP
5	2 (0.18%)	SSL
5	2 (0.18%)	TCP/IP
6	1 (0.092%)	5G
6	1 (0.092%)	LDAP
6	1 (0.092%)	MQTT
6	1 (0.092%)	SSH
6	1 (0.092%)	Telepresence
6	1 (0.092%)	Wi-Fi

Database & Business Intelligence
1	54 (4.97%)	NoSQL
2	52 (4.78%)	MongoDB
3	45 (4.14%)	Big Data
4	41 (3.77%)	Relational Database
5	35 (3.22%)	SQL Server
6	29 (2.67%)	MySQL
7	15 (1.38%)	Redis
8	13 (1.20%)	RavenDB
9	10 (0.92%)	PostgreSQL
10	6 (0.55%)	SQL Server Reporting Services
11	5 (0.46%)	OLAP
11	5 (0.46%)	Power BI
11	5 (0.46%)	PowerPivot
11	5 (0.46%)	SQL Server Integration Services
12	4 (0.37%)	Blockchain
12	4 (0.37%)	Couchbase
12	4 (0.37%)	Oracle Database
12	4 (0.37%)	RDBMS
13	3 (0.28%)	Apache Cassandra
13	3 (0.28%)	GIS

Development Applications
1	176 (16.19%)	Git (software)
2	137 (12.60%)	Jasmine
3	132 (12.14%)	gulp
4	114 (10.49%)	Grunt
5	101 (9.29%)	webpack
6	86 (7.91%)	Selenium
7	80 (7.36%)	Mocha
8	54 (4.97%)	Cucumber
9	46 (4.23%)	TeamCity
10	42 (3.86%)	Jenkins
11	39 (3.59%)	Karma Test Runner
12	36 (3.31%)	Babel
12	36 (3.31%)	JIRA
13	33 (3.04%)	WebDriver
14	31 (2.85%)	Subversion
15	27 (2.48%)	Maven
15	27 (2.48%)	Protractor
16	26 (2.39%)	Bower
17	19 (1.75%)	Gradle
17	19 (1.75%)	NUnit

General
1	202 (18.58%)	Finance
2	184 (16.93%)	Banking
3	88 (8.10%)	Front Office
4	80 (7.36%)	Investment Banking
5	40 (3.68%)	Retail
6	28 (2.58%)	Marketing
7	15 (1.38%)	Legal
8	10 (0.92%)	Games
9	9 (0.83%)	Publishing
10	8 (0.74%)	Back Office
10	8 (0.74%)	Retail Banking
11	7 (0.64%)	Advertising
11	7 (0.64%)	Telecoms
12	4 (0.37%)	Financial Institution
13	2 (0.18%)	Electronics
13	2 (0.18%)	Law
13	2 (0.18%)	Manufacturing
14	1 (0.092%)	Music Industry
14	1 (0.092%)	Pharmaceutical
14	1 (0.092%)	Private Banking

Libraries, Frameworks & Software Standards
1	721 (66.33%)	HTML
2	662 (60.90%)	CSS
3	564 (51.89%)	AngularJS
4	472 (43.42%)	HTML5
5	457 (42.04%)	React
6	417 (38.36%)	Node.js
7	337 (31.00%)	CSS3
8	223 (20.52%)	Sass
9	180 (16.56%)	jQuery
10	156 (14.35%)	Redux
11	129 (11.87%)	.NET
12	114 (10.49%)	RESTful
13	100 (9.20%)	Twitter Bootstrap
14	92 (8.46%)	Web Services
15	86 (7.91%)	REST
16	83 (7.64%)	LESS
17	82 (7.54%)	Angular 2
18	81 (7.45%)	D3.js
19	63 (5.80%)	Express
20	62 (5.70%)	Spring

Miscellaneous
1	179 (16.47%)	User Experience
2	101 (9.29%)	Greenfield Project
3	61 (5.61%)	Fintech
4	52 (4.78%)	Foreign Exchange (FX)
5	43 (3.96%)	Mobile App
6	42 (3.86%)	Fixed Income
7	38 (3.50%)	Derivative
8	26 (2.39%)	Analytical Skills
9	25 (2.30%)	Equity Derivative
10	24 (2.21%)	Computer Science
10	24 (2.21%)	Equities
11	16 (1.47%)	Hedge funds
12	15 (1.38%)	Enterprise Software
13	13 (1.20%)	NHS
13	13 (1.20%)	Virtual Team
14	11 (1.01%)	Algorithms
15	9 (0.83%)	Data Structures
15	9 (0.83%)	RIA
15	9 (0.83%)	W3C
16	6 (0.55%)	Online Banking

Operating Systems
1	32 (2.94%)	Linux
2	23 (2.12%)	Apple iOS
3	22 (2.02%)	Android
4	14 (1.29%)	Windows
5	9 (0.83%)	Unix
6	4 (0.37%)	Mac OS X
7	2 (0.18%)	CentOS
7	2 (0.18%)	Windows 10
7	2 (0.18%)	Windows 7
7	2 (0.18%)	Windows Mobile
8	1 (0.092%)	CoreOS
8	1 (0.092%)	Mac OS
8	1 (0.092%)	webOS
8	1 (0.092%)	Windows Phone
8	1 (0.092%)	Windows Phone 7

Processes & Methodologies
1	557 (51.24%)	Agile Software Development
2	386 (35.51%)	TDD
3	349 (32.11%)	Front End Development
4	200 (18.40%)	OO
5	177 (16.28%)	Scrum
6	153 (14.08%)	BDD
7	128 (11.78%)	Web Development
8	111 (10.21%)	Continuous Integration
9	103 (9.48%)	E-Commerce
10	96 (8.83%)	MVC
11	80 (7.36%)	Software Engineering
12	73 (6.72%)	Pair Programming
12	73 (6.72%)	Test Automation
13	72 (6.62%)	Continuous Improvement
14	70 (6.44%)	Responsive Web Design
15	66 (6.07%)	SDLC
16	63 (5.80%)	Unit Testing
17	57 (5.24%)	DevOps
18	52 (4.78%)	Visualisation
19	48 (4.42%)	Analytics

Programming Languages
1	1087 (100.00%)	JavaScript
2	231 (21.25%)	Java
3	189 (17.39%)	ES6
4	140 (12.88%)	C#
5	94 (8.65%)	SQL
6	65 (5.98%)	TypeScript
7	57 (5.24%)	Python
8	39 (3.59%)	PHP
9	24 (2.21%)	Ruby
9	24 (2.21%)	Scala
10	13 (1.20%)	C
11	11 (1.01%)	C++
11	11 (1.01%)	PL/SQL
12	10 (0.92%)	ECMAScript
13	6 (0.55%)	Perl
14	5 (0.46%)	GraphQL
14	5 (0.46%)	Objective-C
15	4 (0.37%)	Go
15	4 (0.37%)	T-SQL
16	3 (0.28%)	Shell Script

Qualifications
1	34 (3.13%)	Degree
2	14 (1.29%)	Security Cleared
3	9 (0.83%)	Computer Science Degree
3	9 (0.83%)	SC Cleared
4	1 (0.092%)	BPSS Clearance
4	1 (0.092%)	MBA
4	1 (0.092%)	Numerate Degree
4	1 (0.092%)	Postgraduate

Quality Assurance & Compliance
1	38 (3.50%)	QA
2	6 (0.55%)	MiFID
3	1 (0.092%)	Cyber Essentials
3	1 (0.092%)	Data Quality
3	1 (0.092%)	Disclosure Scotland
3	1 (0.092%)	EMIR
3	1 (0.092%)	WCAG

System Software
1	37 (3.40%)	Docker
2	1 (0.092%)	HDFS
2	1 (0.092%)	Virtual Machines

Systems Management
1	6 (0.55%)	Ansible
1	6 (0.55%)	Kubernetes
1	6 (0.55%)	Puppet
2	4 (0.37%)	Mesos
2	4 (0.37%)	Opscode Chef
3	2 (0.18%)	Marathon
3	2 (0.18%)	Terraform

Vendors
1	25 (2.30%)	Adobe
1	25 (2.30%)	Oracle
2	16 (1.47%)	Microsoft
3	15 (1.38%)	Google
4	9 (0.83%)	SAP
5	8 (0.74%)	ServiceNow
6	6 (0.55%)	Xamarin
7	5 (0.46%)	Twitter
8	4 (0.37%)	Marketo
8	4 (0.37%)	Sitecore
8	4 (0.37%)	Sybase
9	3 (0.28%)	Apple
10	2 (0.18%)	Appcelerator
10	2 (0.18%)	Atlassian
10	2 (0.18%)	Cisco
10	2 (0.18%)	ESRI
10	2 (0.18%)	Panasonic
10	2 (0.18%)	Progress
10	2 (0.18%)	Reuters
10	2 (0.18%)	Telerik