JavaScript Contracts in London

The following table provides summary statistics for contract job vacancies advertised in London 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 25 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) England / London
Location	3 months to 25 Jun 2017	Same period 2016	Same period 2015
Rank	8	7	10
Rank change year-on-year	-1	+3
Contract jobs citing JavaScript	2657	2710	2511
As % of all contract IT jobs advertised in London	12.98%	12.68%	10.72%
As % of the Programming Languages category	27.16%	29.10%	25.52%
Number of daily rates quoted	2026	2182	1844
Median daily rate	£475	£438	£400
Median daily rate % change year-on-year	+8.57%	+9.37%
90% offered a daily rate of more than	£340	£325	£300
10% offered a daily rate of more than	£600	£579	£575
UK excluding London median daily rate	£375	£363	£341
% change year-on-year	+3.44%	+6.46%
Number of hourly rates quoted	10	8	10
Median hourly rate	£27.16	£32.12	£22.18
Median hourly rate % change year-on-year	-15.43%	+44.80%
90% offered a hourly rate of more than	£15.85	£20.54	£19.64
10% offered a hourly rate of more than	£32.10	£190.00	£45.75
UK excluding London median hourly rate	£43.39	£37.50	£40.00
% change year-on-year	+15.70%	-6.25%

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 London with a requirement for programming language skills.

Contract Programming Language Skills London
Contract job vacancies with a requirement for programming language skills	9783	9312	9840
As % of all contract IT job vacancies advertised in London	47.81%	43.56%	42.02%
Number of daily rates quoted	7233	7103	7192
Median daily rate	£500	£475	£450
Median daily rate % change year-on-year	+5.26%	+5.55%
90% offered a daily rate of more than	£350	£325	£303
10% offered a daily rate of more than	£650	£625	£625
UK excluding London median daily rate	£400	£375	£350
% change year-on-year	+6.66%	+7.14%
Number of hourly rates quoted	74	39	85
Median hourly rate	£33.75	£40.00	£30.00
Median hourly rate % change year-on-year	-15.62%	+33.33%
90% offered a hourly rate of more than	£19.82	£14.95	£18.00
10% offered a hourly rate of more than	£47.83	£113.00	£52.19
UK excluding London median hourly rate	£42.50	£37.50	£37.00
% change year-on-year	+13.33%	+1.35%

JavaScript
Job Vacancy Trend in London

The job posting trend of jobs advertised in London 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 London

JavaScript
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JavaScript in London

JavaScript
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript in London over the 3 months to 25 June 2017.

Contractor daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for JavaScript in London

JavaScript
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing JavaScript in London over the 3 months to 25 June 2017.

Contractor hourly rate histogram for JavaScript in London

JavaScript
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 within the London region over the 3 months to 25 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	0	452	£500	+12.35%	209
Croydon	-4	36	£450	+12.50%	2
Canary Wharf	+7	13	£650	+30.00%
Uxbridge	+3	10	£318	-7.63%	3
Westminster	+6	5	£519	+31.74%	4
Greenwich	-	5	£190	-
Brentford	+1	4	£385	-18.94%	1
Hammersmith	-5	4	£425	-	2
Twickenham	+5	3	£475	+46.15%	1
West End of London	-5	3	£363	-14.70%	31
Kingston Upon Thames	-8	3	£475	+18.01%	3
Moorgate	-	3	£550	-
Chiswick	+3	2	£400	+6.66%
Wimbledon	0	2	£338	-15.62%	2
Bromley	-1	2	£650	-	3
Hounslow	+4	1	£375	-11.76%	2
Harrow	+3	1	£425	-	1
Feltham	-2	1	£351	-37.68%
Docklands, London	-4	1	£490	-0.60%
Southwark	-	1	£350	-	1
Hayes	-	1	£390	-
Ilford	-	1	£450	-
Romford	-	1	£350	-
Surbiton	-	1	£425	-	2
JavaScript England

JavaScript
Top 30 Co-occurring IT Skills in London

For the 6 months to 25 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 London region with a requirement for JavaScript.

1	3157 (62.79%)	HTML
2	2855 (56.78%)	CSS
3	2376 (47.26%)	Agile Software Development
4	1887 (37.53%)	AngularJS
5	1668 (33.17%)	HTML5
6	1452 (28.88%)	TDD
7	1435 (28.54%)	Java
8	1250 (24.86%)	Node.js
9	1217 (24.20%)	React
10	1109 (22.06%)	CSS3
11	1086 (21.60%)	Front End Development
12	939 (18.68%)	.NET
13	935 (18.60%)	jQuery
14	896 (17.82%)	C#
15	875 (17.40%)	SQL

16	849 (16.89%)	Finance
17	832 (16.55%)	Scrum
18	801 (15.93%)	Git (software)
19	737 (14.66%)	MVC
20	703 (13.98%)	OO
21	682 (13.56%)	BDD
22	644 (12.81%)	Web Development
23	634 (12.61%)	Web Services
24	622 (12.37%)	Banking
25	597 (11.87%)	User Experience
26	548 (10.90%)	Sass
27	530 (10.54%)	REST
28	521 (10.36%)	Test Automation
29	517 (10.28%)	RESTful
30	509 (10.12%)	SQL Server

JavaScript
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
Job Titles
Libraries, Frameworks & Software Standards
Miscellaneous
Operating Systems
Processes & Methodologies
Programming Languages
Qualifications
Quality Assurance & Compliance
System Software
Systems Management
Vendors

Application Platforms
1	271 (5.39%)	CMS
2	179 (3.56%)	Elasticsearch
3	149 (2.96%)	SharePoint
4	113 (2.25%)	Adobe Experience Manager
5	112 (2.23%)	Confluence
6	111 (2.21%)	Apache
7	83 (1.65%)	Tomcat
8	79 (1.57%)	JBoss
9	69 (1.37%)	WordPress
10	68 (1.35%)	WebSphere
11	57 (1.13%)	Apache Spark
11	57 (1.13%)	Drupal
12	53 (1.05%)	IIS
13	50 (0.99%)	SharePoint 2013
14	40 (0.80%)	Apache Solr
15	34 (0.68%)	WebLogic
16	33 (0.66%)	nginx
17	31 (0.62%)	Oracle SOA Suite
18	28 (0.56%)	SharePoint 2010
18	28 (0.56%)	Umbraco

Applications
1	129 (2.57%)	Photoshop
2	40 (0.80%)	Microsoft Excel
3	34 (0.68%)	Adobe Illustrator
4	33 (0.66%)	Microsoft Office
5	25 (0.50%)	Adobe Creative Suite
6	23 (0.46%)	MS Visio
7	22 (0.44%)	OmniGraffle
8	15 (0.30%)	InVision
9	7 (0.14%)	Microsoft PowerPoint
10	6 (0.12%)	GIMP
11	5 (0.099%)	InfoPath
11	5 (0.099%)	Pixate
11	5 (0.099%)	SPSS
11	5 (0.099%)	UXPin
12	4 (0.080%)	InDesign
13	3 (0.060%)	Fireworks
13	3 (0.060%)	Microsoft Project
14	2 (0.040%)	Adobe After Effects
14	2 (0.040%)	Adobe Captivate
14	2 (0.040%)	Spreadsheet

Business Applications
1	74 (1.47%)	Dynamics CRM
2	24 (0.48%)	Magento
3	17 (0.34%)	SAP Oil and Gas
4	10 (0.20%)	Eloqua
4	10 (0.20%)	Payment Gateway
5	9 (0.18%)	Oracle BPM
6	8 (0.16%)	Salesforce.com CRM
6	8 (0.16%)	SAP Hybris
7	5 (0.099%)	ION MarketView
7	5 (0.099%)	NetSuite
8	4 (0.080%)	Revive Adserver
8	4 (0.080%)	RMDS
9	3 (0.060%)	SAP CRM
9	3 (0.060%)	SDL Web 8
9	3 (0.060%)	Shopify
10	2 (0.040%)	Adobe Campaign
10	2 (0.040%)	IBM Operational Decision Manager
10	2 (0.040%)	Oracle Applications
10	2 (0.040%)	Pega PRPC
10	2 (0.040%)	Remedy ITSM

Cloud Services
1	434 (8.63%)	Amazon AWS
2	253 (5.03%)	Microsoft Azure
3	165 (3.28%)	GitHub
4	54 (1.07%)	SaaS
5	42 (0.84%)	Amazon EC2
5	42 (0.84%)	Cloud Computing
6	35 (0.70%)	AWS CloudFormation
7	34 (0.68%)	Heroku
8	33 (0.66%)	Salesforce Service Cloud
9	30 (0.60%)	Google Analytics
9	30 (0.60%)	Office 365
10	29 (0.58%)	Google Cloud Platform
11	28 (0.56%)	AWS Lambda
12	26 (0.52%)	PaaS
13	23 (0.46%)	Adobe Analytics
14	19 (0.38%)	Salesforce Sales Cloud
15	16 (0.32%)	Amazon S3
16	14 (0.28%)	IaaS
17	12 (0.24%)	Force.com
18	11 (0.22%)	Amazon SQS

Communications & Networking
1	134 (2.67%)	HTTP
2	90 (1.79%)	Internet
3	33 (0.66%)	TCP/IP
4	30 (0.60%)	LDAP
5	29 (0.58%)	SSL
6	26 (0.52%)	Intranet
7	22 (0.44%)	Network Security
8	20 (0.40%)	DNS
9	16 (0.32%)	WebEx
10	13 (0.26%)	SSH
11	12 (0.24%)	AMQP
11	12 (0.24%)	HTTPS
12	10 (0.20%)	SMTP
13	8 (0.16%)	Firewall
14	7 (0.14%)	FTP
14	7 (0.14%)	IP Telephony
15	6 (0.12%)	Skype
16	5 (0.099%)	Wireshark
17	4 (0.080%)	NAS
17	4 (0.080%)	SAN

Database & Business Intelligence
1	509 (10.12%)	SQL Server
2	310 (6.17%)	NoSQL
3	307 (6.11%)	MySQL
4	299 (5.95%)	MongoDB
5	222 (4.42%)	Relational Database
6	157 (3.12%)	Big Data
7	118 (2.35%)	PostgreSQL
8	89 (1.77%)	Hadoop
9	67 (1.33%)	RDBMS
10	64 (1.27%)	SQL Server 2008
11	62 (1.23%)	Apache Cassandra
12	57 (1.13%)	Redis
12	57 (1.13%)	SQL Server Reporting Services
13	55 (1.09%)	SQL Server 2012
14	49 (0.97%)	SQL Server Integration Services
15	41 (0.82%)	Amazon DynamoDB
16	34 (0.68%)	Data Warehouse
17	30 (0.60%)	QlikView
17	30 (0.60%)	RavenDB
18	25 (0.50%)	Power BI

Development Applications
1	801 (15.93%)	Git (software)
2	383 (7.62%)	Jenkins
3	304 (6.05%)	JIRA
4	302 (6.01%)	Grunt
4	302 (6.01%)	Jasmine
5	298 (5.93%)	gulp
6	274 (5.45%)	Selenium
7	217 (4.32%)	Maven
8	209 (4.16%)	webpack
9	200 (3.98%)	Subversion
10	188 (3.74%)	Cucumber
11	186 (3.70%)	TeamCity
12	175 (3.48%)	Mocha
13	125 (2.49%)	JUnit
14	114 (2.27%)	Karma Test Runner
15	107 (2.13%)	Visual Studio
16	106 (2.11%)	Team Foundation Server
17	99 (1.97%)	WebDriver
18	91 (1.81%)	NUnit
19	85 (1.69%)	Octopus Deploy

General
1	849 (16.89%)	Finance
2	622 (12.37%)	Banking
3	262 (5.21%)	Front Office
4	242 (4.81%)	Investment Banking
5	200 (3.98%)	Marketing
6	182 (3.62%)	Retail
7	82 (1.63%)	Advertising
8	75 (1.49%)	Games
9	69 (1.37%)	Publishing
10	62 (1.23%)	Telecoms
11	33 (0.66%)	Back Office
12	29 (0.58%)	Legal
13	28 (0.56%)	Law
13	28 (0.56%)	Retail Banking
14	25 (0.50%)	Electronics
15	24 (0.48%)	Financial Institution
15	24 (0.48%)	Pharmaceutical
16	23 (0.46%)	Manufacturing
17	13 (0.26%)	French Language
18	8 (0.16%)	Automotive

Job Titles
1	4009 (79.73%)	Developer
2	1090 (21.68%)	JavaScript Developer
3	871 (17.32%)	Front End Developer (Client-Side Developer)
4	539 (10.72%)	Java Developer
5	525 (10.44%)	Angular Developer
6	501 (9.96%)	Senior Developer
7	458 (9.11%)	Full Stack Developer
8	402 (8.00%)	.NET Developer
9	364 (7.24%)	HTML Developer
10	327 (6.50%)	C# Developer
11	306 (6.09%)	UI Developer
12	289 (5.75%)	Node.js Developer
13	251 (4.99%)	Web Developer
14	224 (4.46%)	HTML CSS Developer
15	174 (3.46%)	C# .NET Developer
16	149 (2.96%)	Agile Developer
17	134 (2.67%)	Python Developer
18	133 (2.65%)	Architect
19	119 (2.37%)	Senior JavaScript Developer
20	116 (2.31%)	Consultant

Libraries, Frameworks & Software Standards
1	3157 (62.79%)	HTML
2	2855 (56.78%)	CSS
3	1887 (37.53%)	AngularJS
4	1668 (33.17%)	HTML5
5	1250 (24.86%)	Node.js
6	1217 (24.20%)	React
7	1109 (22.06%)	CSS3
8	939 (18.68%)	.NET
9	935 (18.60%)	jQuery
10	634 (12.61%)	Web Services
11	548 (10.90%)	Sass
12	530 (10.54%)	REST
13	517 (10.28%)	RESTful
14	475 (9.45%)	XML
15	465 (9.25%)	ASP.NET
16	393 (7.82%)	Redux
17	386 (7.68%)	Spring
18	382 (7.60%)	JSON
19	332 (6.60%)	Twitter Bootstrap
20	294 (5.85%)	Ajax

Miscellaneous
1	597 (11.87%)	User Experience
2	373 (7.42%)	Greenfield Project
3	220 (4.38%)	Analytical Skills
4	196 (3.90%)	Mobile App
5	175 (3.48%)	Computer Science
6	166 (3.30%)	Fintech
7	157 (3.12%)	Foreign Exchange (FX)
8	103 (2.05%)	Fixed Income
9	85 (1.69%)	Derivative
10	77 (1.53%)	Enterprise Software
11	69 (1.37%)	Equities
12	61 (1.21%)	Data Structures
13	54 (1.07%)	Hedge funds
14	47 (0.93%)	NHS
15	44 (0.88%)	Virtual Team
16	41 (0.82%)	W3C
17	36 (0.72%)	Equity Derivative
17	36 (0.72%)	Management Information System
18	34 (0.68%)	Digital Media
18	34 (0.68%)	iPad

Operating Systems
1	399 (7.94%)	Linux
2	184 (3.66%)	Unix
3	155 (3.08%)	Windows
4	134 (2.67%)	Apple iOS
5	110 (2.19%)	Android
6	51 (1.01%)	Red Hat Enterprise Linux
7	28 (0.56%)	CentOS
8	27 (0.54%)	Windows Server
9	25 (0.50%)	Ubuntu
10	23 (0.46%)	Mac OS X
11	17 (0.34%)	Windows Server 2012
12	16 (0.32%)	Mac OS
13	14 (0.28%)	Windows Server 2008
14	10 (0.20%)	Windows 10
15	9 (0.18%)	Solaris
15	9 (0.18%)	SUSE Linux Enterprise Server
16	8 (0.16%)	AIX
17	4 (0.080%)	CoreOS
17	4 (0.080%)	Windows Mobile
18	3 (0.060%)	Windows 7

Processes & Methodologies
1	2376 (47.26%)	Agile Software Development
2	1452 (28.88%)	TDD
3	1086 (21.60%)	Front End Development
4	832 (16.55%)	Scrum
5	737 (14.66%)	MVC
6	703 (13.98%)	OO
7	682 (13.56%)	BDD
8	644 (12.81%)	Web Development
9	521 (10.36%)	Test Automation
10	483 (9.61%)	Continuous Integration
11	473 (9.41%)	E-Commerce
12	432 (8.59%)	DevOps
13	352 (7.00%)	Software Engineering
14	325 (6.46%)	Microservices
15	272 (5.41%)	Responsive Web Design
16	260 (5.17%)	Unit Testing
17	252 (5.01%)	Kanban
18	236 (4.69%)	SOA
19	232 (4.61%)	Open Source
20	219 (4.36%)	Analytics

Programming Languages
1	1435 (28.54%)	Java
2	896 (17.82%)	C#
3	875 (17.40%)	SQL
4	497 (9.88%)	Python
5	390 (7.76%)	ES6
6	333 (6.62%)	PHP
7	321 (6.38%)	Ruby
8	223 (4.44%)	Scala
9	207 (4.12%)	TypeScript
10	106 (2.11%)	T-SQL
11	84 (1.67%)	PowerShell
12	83 (1.65%)	Perl
13	74 (1.47%)	Groovy
14	73 (1.45%)	Shell Script
15	72 (1.43%)	C++
16	66 (1.31%)	Bash Shell
17	63 (1.25%)	PL/SQL
18	50 (0.99%)	Apex Code
19	48 (0.95%)	C
20	39 (0.78%)	VB

Qualifications
1	255 (5.07%)	Degree
2	133 (2.65%)	Security Cleared
3	85 (1.69%)	Computer Science Degree
4	82 (1.63%)	SC Cleared
5	15 (0.30%)	BPSS Clearance
6	13 (0.26%)	DV Cleared
6	13 (0.26%)	Master's Degree
6	13 (0.26%)	PMI Certification
7	12 (0.24%)	CISSP
8	10 (0.20%)	OCPJP
9	9 (0.18%)	Microsoft Certification
9	9 (0.18%)	PMP
10	8 (0.16%)	ISEB
10	8 (0.16%)	ISTQB
11	7 (0.14%)	CTC Cleared
12	6 (0.12%)	MBA
13	5 (0.099%)	CISA
13	5 (0.099%)	CISM
13	5 (0.099%)	Sun Certification
14	4 (0.080%)	MCP

Quality Assurance & Compliance
1	240 (4.77%)	QA
2	28 (0.56%)	MiFID
3	25 (0.50%)	SLA
4	21 (0.42%)	WCAG
5	15 (0.30%)	WAI
6	13 (0.26%)	Data Quality
7	11 (0.22%)	Disclosure Scotland
8	8 (0.16%)	PCI DSS
9	6 (0.12%)	FATCA
9	6 (0.12%)	ISO/IEC 27001
10	5 (0.099%)	FedRAMP
10	5 (0.099%)	PMO
11	3 (0.060%)	HMG Security Policy Framework
12	2 (0.040%)	COBIT
12	2 (0.040%)	EMIR
13	1 (0.020%)	Cyber Essentials
13	1 (0.020%)	Dodd-Frank
13	1 (0.020%)	GDPR
13	1 (0.020%)	HL7

System Software
1	230 (4.57%)	Docker
2	31 (0.62%)	Active Directory
3	16 (0.32%)	HDFS
4	11 (0.22%)	VMware Infrastructure
5	8 (0.16%)	Apache Flume
5	8 (0.16%)	Virtual Machines
6	5 (0.099%)	KVM
6	5 (0.099%)	Shibboleth
7	4 (0.080%)	Apache ZooKeeper
7	4 (0.080%)	Hyper-V
8	3 (0.060%)	VMware ESXi
9	2 (0.040%)	UAG
9	2 (0.040%)	vSphere
9	2 (0.040%)	XenApp
9	2 (0.040%)	XenDesktop
10	1 (0.020%)	NFS
10	1 (0.020%)	Oracle RAC
10	1 (0.020%)	SRDF
10	1 (0.020%)	Varnish
10	1 (0.020%)	Xen

Systems Management
1	103 (2.05%)	Puppet
2	97 (1.93%)	Opscode Chef
3	93 (1.85%)	Ansible
4	61 (1.21%)	Kubernetes
5	52 (1.03%)	Terraform
6	33 (0.66%)	Kibana
7	31 (0.62%)	logstash
8	17 (0.34%)	Packer
9	14 (0.28%)	BladeLogic
10	13 (0.26%)	Mesos
11	10 (0.20%)	Piwik
12	9 (0.18%)	Nagios
12	9 (0.18%)	OpenAM
13	8 (0.16%)	Control-M
13	8 (0.16%)	SCCM
14	7 (0.14%)	HP Quality Center
15	6 (0.12%)	ZABBIX
16	5 (0.099%)	Capistrano
16	5 (0.099%)	CFEngine
16	5 (0.099%)	HP SiteScope

Vendors
1	322 (6.40%)	Microsoft
2	241 (4.79%)	Oracle
3	192 (3.82%)	Adobe
4	132 (2.63%)	ServiceNow
5	103 (2.05%)	Google
6	83 (1.65%)	Salesforce.com
7	66 (1.31%)	SAP
8	64 (1.27%)	IBM
9	58 (1.15%)	Red Hat
10	47 (0.93%)	Atlassian
11	36 (0.72%)	Sitecore
12	35 (0.70%)	Sybase
13	32 (0.64%)	New Relic
14	26 (0.52%)	Twitter
15	24 (0.48%)	Tableau
15	24 (0.48%)	TIBCO
16	22 (0.44%)	Demandware
16	22 (0.44%)	hybris
16	22 (0.44%)	Splunk
17	21 (0.42%)	Xamarin