The following table provides summary statistics for contract job vacancies advertised in the City of 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 24 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
24 Mar 2017
Same period 2016 Same period 2015
JavaScript (including ECMAScript)
London / City of London
Rank 8 16 11
Rank change year-on-year +8 -5  
Contract jobs citing JavaScript 364 291 477
As % of all contract IT jobs advertised in the City of London 12.01% 8.83% 9.45%
As % of the Programming Languages category 24.85% 19.02% 21.55%
Number of daily rates quoted 312 242 368
Median daily rate £463 £434 £425
Median daily rate % change year-on-year +6.62% +2.05%  
90% offered a daily rate of more than £338 £350 £275
10% offered a daily rate of more than £575 £575 £575
UK excluding London median daily rate £375 £350 £350
% change year-on-year +7.14% -  
Number of hourly rates quoted 0 2 4
Median hourly rate - £55.00 £27.37
Median hourly rate % change year-on-year - +100.94%  
UK excluding London median hourly rate £41.75 £38.00 £35.00
% change year-on-year +9.86% +8.57%  

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 the City of London with a requirement for programming language skills.

Contract Programming Language Skills
City of London
Contract job vacancies with a requirement for programming language skills 1465 1530 2213
As % of all contract IT job vacancies advertised in the City of London 48.32% 46.45% 43.83%
Number of daily rates quoted 1200 1293 1782
Median daily rate £500 £475 £475
Median daily rate % change year-on-year +5.26% -  
90% offered a daily rate of more than £335 £325 £325
10% offered a daily rate of more than £625 £625 £615
UK excluding London median daily rate £390 £375 £350
% change year-on-year +4.00% +7.14%  
Number of hourly rates quoted 3 8 7
Median hourly rate £28.35 £29.64 £27.37
Median hourly rate % change year-on-year -4.36% +8.29%  
UK excluding London median hourly rate £41.64 £40.00 £36.00
% change year-on-year +4.10% +11.11%  

JavaScript
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of 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 the City of London

JavaScript
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 JavaScript in the City of London.

Contractor daily rate trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JavaScript in the City of London over the 3 months to 24 March 2017.

Contractor daily rate histogram for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for JavaScript in the City of London

JavaScript
Top 30 Related IT Skills in the City of London

For the 6 months to 24 March 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 City of London region with a requirement for JavaScript.

1 504 (64.45%) HTML
2 450 (57.54%) CSS
3 369 (47.19%) Agile Software Development
4 300 (38.36%) AngularJS
5 268 (34.27%) HTML5
6 237 (30.31%) TDD
7 198 (25.32%) Java
8 188 (24.04%) React
9 181 (23.15%) jQuery
10 176 (22.51%) CSS3
11 171 (21.87%) Node.js
12 157 (20.08%) C#
13 151 (19.31%) .NET
13 151 (19.31%) Front End Development
14 150 (19.18%) Finance
15 141 (18.03%) MVC
16 137 (17.52%) SQL
17 136 (17.39%) BDD
18 134 (17.14%) Scrum
19 119 (15.22%) RESTful
20 114 (14.58%) REST
21 113 (14.45%) Banking
22 108 (13.81%) Web Services
23 105 (13.43%) Web Development
24 101 (12.92%) Git (software)
25 96 (12.28%) Continuous Integration
26 94 (12.02%) OO
27 87 (11.13%) ASP.NET
28 85 (10.87%) Sass
29 82 (10.49%) SQL Server

JavaScript
Top Related 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 30 (3.84%) Adobe Experience Manager
1 30 (3.84%) CMS
2 29 (3.71%) Apache
3 28 (3.58%) Confluence
4 18 (2.30%) SharePoint
5 14 (1.79%) Tomcat
6 13 (1.66%) Elasticsearch
7 12 (1.53%) WordPress
8 10 (1.28%) Drupal
8 10 (1.28%) IIS
8 10 (1.28%) WebLogic
9 9 (1.15%) Umbraco
10 7 (0.90%) Apache Solr
10 7 (0.90%) JBoss
10 7 (0.90%) Mule
11 6 (0.77%) BizTalk Server
11 6 (0.77%) WebSphere
12 5 (0.64%) LiveCycle
12 5 (0.64%) SharePoint 2013
13 3 (0.38%) Apache Spark
Applications
1 11 (1.41%) Photoshop
2 9 (1.15%) MS Excel
3 4 (0.51%) Adobe Creative Suite
4 3 (0.38%) Adobe Illustrator
4 3 (0.38%) InVision
4 3 (0.38%) MS Office
4 3 (0.38%) OmniGraffle
5 2 (0.26%) HipChat
5 2 (0.26%) UXPin
6 1 (0.13%) Adobe Captivate
6 1 (0.13%) InfoPath
6 1 (0.13%) Pixate
Business Applications
1 15 (1.92%) Dynamics CRM
2 10 (1.28%) Magento
3 5 (0.64%) SAP CRM
3 5 (0.64%) SAP Hybris
4 2 (0.26%) SAP Oil and Gas
5 1 (0.13%) Eloqua
5 1 (0.13%) ION MarketView
5 1 (0.13%) NetSuite
5 1 (0.13%) OpenCart
5 1 (0.13%) Payment Gateway
5 1 (0.13%) Shopify
Cloud Services
1 71 (9.08%) Amazon AWS
2 29 (3.71%) Microsoft Azure
3 16 (2.05%) GitHub
4 13 (1.66%) SaaS
5 11 (1.41%) AWS CloudFormation
6 6 (0.77%) Amazon EC2
6 6 (0.77%) Google Cloud Platform
6 6 (0.77%) IaaS
7 5 (0.64%) Slack
8 4 (0.51%) AWS Lambda
8 4 (0.51%) PaaS
9 3 (0.38%) Amazon S3
9 3 (0.38%) Cloud Computing
9 3 (0.38%) Google Analytics
10 2 (0.26%) Akamai
10 2 (0.26%) Google App Engine
10 2 (0.26%) Office 365
11 1 (0.13%) Amazon ELB
11 1 (0.13%) Amazon SQS
11 1 (0.13%) Route 53
Communications & Networking
1 40 (5.12%) HTTP
2 17 (2.17%) Internet
3 13 (1.66%) SSL
4 9 (1.15%) DNS
5 7 (0.90%) RTP
5 7 (0.90%) RTSP
6 4 (0.51%) LDAP
7 3 (0.38%) SMTP
7 3 (0.38%) TCP/IP
8 2 (0.26%) AMQP
8 2 (0.26%) Firewall
8 2 (0.26%) HTTPS
8 2 (0.26%) Intranet
8 2 (0.26%) Kerberos
8 2 (0.26%) SNMP
8 2 (0.26%) SSH
Database & Business Intelligence
1 82 (10.49%) SQL Server
2 57 (7.29%) NoSQL
3 52 (6.65%) MongoDB
4 46 (5.88%) MySQL
5 24 (3.07%) Apache Cassandra
6 21 (2.69%) PostgreSQL
7 17 (2.17%) Big Data
8 16 (2.05%) Relational Database
9 12 (1.53%) SQL Server 2012
10 11 (1.41%) SQL Server Integration Services
11 9 (1.15%) Hadoop
12 8 (1.02%) HBase
12 8 (1.02%) SQL Server 2008
12 8 (1.02%) SQL Server Reporting Services
13 5 (0.64%) DB2
13 5 (0.64%) MariaDB
13 5 (0.64%) Power BI
13 5 (0.64%) QlikView
14 4 (0.51%) Couchbase
14 4 (0.51%) Oracle Database 11g
Development Applications
1 101 (12.92%) Git (software)
2 59 (7.54%) Jenkins
3 56 (7.16%) Selenium
4 53 (6.78%) Jasmine
5 52 (6.65%) gulp
6 51 (6.52%) JIRA
7 50 (6.39%) Grunt
8 42 (5.37%) Cucumber
9 35 (4.48%) webpack
10 28 (3.58%) Karma Test Runner
11 27 (3.45%) Bower
12 25 (3.20%) Maven
12 25 (3.20%) Mocha
13 24 (3.07%) Visual Studio
14 21 (2.69%) Protractor
15 20 (2.56%) JUnit
16 16 (2.05%) WebDriver
17 15 (1.92%) Team Foundation Server
17 15 (1.92%) TeamCity
18 14 (1.79%) IntelliJ
General
1 150 (19.18%) Finance
2 113 (14.45%) Banking
3 49 (6.27%) Investment Banking
4 28 (3.58%) Front Office
5 26 (3.32%) Retail
6 23 (2.94%) Marketing
7 21 (2.69%) Advertising
8 14 (1.79%) Publishing
9 13 (1.66%) Games
10 12 (1.53%) Telecoms
11 8 (1.02%) Financial Institution
12 6 (0.77%) Back Office
13 5 (0.64%) Retail Banking
14 3 (0.38%) Automotive
14 3 (0.38%) Electronics
14 3 (0.38%) Multimedia
15 2 (0.26%) Manufacturing
16 1 (0.13%) Interactive Media
16 1 (0.13%) Legal
16 1 (0.13%) Music Industry
Job Titles
1 642 (82.10%) Developer
2 168 (21.48%) JavaScript Developer
3 130 (16.62%) Front End Developer (Client-Side Developer)
4 99 (12.66%) Full Stack Developer
5 86 (11.00%) Java Developer
6 76 (9.72%) Senior Developer
7 65 (8.31%) Angular Developer
8 57 (7.29%) HTML Developer
9 52 (6.65%) .NET Developer
9 52 (6.65%) Node.js Developer
10 47 (6.01%) Web Developer
11 38 (4.86%) C# Developer
12 35 (4.48%) UI Developer
13 29 (3.71%) HTML CSS Developer
14 27 (3.45%) Lead Developer
15 25 (3.20%) Python Developer
16 22 (2.81%) Senior Java Developer
17 20 (2.56%) Agile Developer
18 18 (2.30%) Architect
19 15 (1.92%) Scala Developer
Libraries, Frameworks & Software Standards
1 504 (64.45%) HTML
2 450 (57.54%) CSS
3 300 (38.36%) AngularJS
4 268 (34.27%) HTML5
5 188 (24.04%) React
6 181 (23.15%) jQuery
7 176 (22.51%) CSS3
8 171 (21.87%) Node.js
9 151 (19.31%) .NET
10 119 (15.22%) RESTful
11 114 (14.58%) REST
12 108 (13.81%) Web Services
13 87 (11.13%) ASP.NET
14 85 (10.87%) Sass
15 72 (9.21%) JSON
16 71 (9.08%) XML
17 69 (8.82%) Ajax
18 68 (8.70%) Twitter Bootstrap
19 64 (8.18%) Spring
20 47 (6.01%) Redux
Miscellaneous
1 80 (10.23%) User Experience
2 37 (4.73%) Mobile App
3 28 (3.58%) Fintech
4 24 (3.07%) Computer Science
5 17 (2.17%) Analytical Skills
6 16 (2.05%) Foreign Exchange (FX)
7 14 (1.79%) Derivative
7 14 (1.79%) NHS
8 11 (1.41%) RIA
9 10 (1.28%) Equities
9 10 (1.28%) Fixed Income
9 10 (1.28%) Graphic Design
10 9 (1.15%) Data Structures
11 8 (1.02%) Enterprise Software
11 8 (1.02%) iPad
12 7 (0.90%) Management Information System
12 7 (0.90%) MPEG
12 7 (0.90%) Streaming Video
13 6 (0.77%) Algorithms
13 6 (0.77%) Equity Derivative
Operating Systems
1 57 (7.29%) Linux
2 41 (5.24%) Apple iOS
3 37 (4.73%) Android
4 34 (4.35%) Windows
5 32 (4.09%) Unix
6 10 (1.28%) Windows Server
7 4 (0.51%) CentOS
7 4 (0.51%) Red Hat Enterprise Linux
7 4 (0.51%) webOS
7 4 (0.51%) Windows Phone
7 4 (0.51%) Windows Phone 7
8 3 (0.38%) Windows Server 2008
8 3 (0.38%) Windows Server 2012
9 2 (0.26%) Ubuntu
10 1 (0.13%) CoreOS
10 1 (0.13%) Debian
10 1 (0.13%) FreeBSD
Processes & Methodologies
1 369 (47.19%) Agile Software Development
2 237 (30.31%) TDD
3 151 (19.31%) Front End Development
4 141 (18.03%) MVC
5 136 (17.39%) BDD
6 134 (17.14%) Scrum
7 105 (13.43%) Web Development
8 96 (12.28%) Continuous Integration
9 94 (12.02%) OO
10 77 (9.85%) Software Engineering
11 60 (7.67%) DevOps
12 57 (7.29%) E-Commerce
13 56 (7.16%) Microservices
14 54 (6.91%) Unit Testing
15 47 (6.01%) Kanban
16 45 (5.75%) Responsive Web Design
17 41 (5.24%) SOA
18 39 (4.99%) Pair Programming
19 38 (4.86%) Automated Testing
20 35 (4.48%) Open Source
Programming Languages
1 198 (25.32%) Java
2 157 (20.08%) C#
3 137 (17.52%) SQL
4 57 (7.29%) ES6
5 54 (6.91%) PHP
6 53 (6.78%) Python
7 37 (4.73%) Scala
8 26 (3.32%) Ruby
9 24 (3.07%) T-SQL
9 24 (3.07%) TypeScript
10 18 (2.30%) PowerShell
11 17 (2.17%) PL/SQL
12 16 (2.05%) Shell Script
13 13 (1.66%) Groovy
14 10 (1.28%) Bash Shell
14 10 (1.28%) ECMAScript
15 9 (1.15%) Apple Swift
15 9 (1.15%) C++
16 5 (0.64%) VB.NET
17 4 (0.51%) Clojure
Qualifications
1 29 (3.71%) Degree
2 11 (1.41%) Security Cleared
3 10 (1.28%) SC Cleared
4 2 (0.26%) OCPJP
4 2 (0.26%) PMI Certification
4 2 (0.26%) PMP
5 1 (0.13%) DV Cleared
5 1 (0.13%) ITIL Certification
5 1 (0.13%) MCP
5 1 (0.13%) Microsoft Certification
5 1 (0.13%) PhD
Quality Assurance & Compliance
1 47 (6.01%) QA
2 5 (0.64%) MiFID
2 5 (0.64%) SDET
3 3 (0.38%) HL7
4 1 (0.13%) Data Quality
4 1 (0.13%) Disclosure Scotland
4 1 (0.13%) SLA
4 1 (0.13%) WAI
System Software
1 46 (5.88%) Docker
2 6 (0.77%) Active Directory
3 3 (0.38%) HDFS
4 1 (0.13%) Apache Flume
4 1 (0.13%) Apache ZooKeeper
Systems Management
1 12 (1.53%) Puppet
2 11 (1.41%) Opscode Chef
3 10 (1.28%) Kubernetes
4 5 (0.64%) Ansible
5 4 (0.51%) Mesos
5 4 (0.51%) SCOM
6 3 (0.38%) Terraform
7 2 (0.26%) Galera Cluster
7 2 (0.26%) Marathon
7 2 (0.26%) SCCM
8 1 (0.13%) CA Single Sign-On
8 1 (0.13%) Capistrano
8 1 (0.13%) HP Quality Center
Vendors
1 43 (5.50%) Microsoft
2 34 (4.35%) Oracle
3 25 (3.20%) Adobe
4 13 (1.66%) Google
5 12 (1.53%) New Relic
5 12 (1.53%) SAP
6 7 (0.90%) Atlassian
6 7 (0.90%) Brightcove
6 7 (0.90%) hybris
6 7 (0.90%) Salesforce.com
7 6 (0.77%) Sitecore
7 6 (0.77%) Tableau
8 5 (0.64%) Red Hat
8 5 (0.64%) ServiceNow
8 5 (0.64%) Sybase
9 4 (0.51%) Perforce
9 4 (0.51%) Twitter
10 3 (0.38%) Apigee
10 3 (0.38%) MuleSoft
10 3 (0.38%) Splunk
City, London
Square One Resources
Rate: Up to £400 per day 3 Months Contract
Posted: 22 hours ago
City, London
Oscar
Rate: £400 - £550 per day
Posted: 16 hours ago
City, London
Reco Ltd
Rate: From £300 to £400 per day 2 Month initial contract - likely to extend.
Posted: 15 hours ago
City, London
Oscar
Rate: £450 - £550 per day
Posted: 16 hours ago
City, London
Experis Ltd
Rate: £450 - £500 per day + DOE
Posted: Yesterday
City, London
Oliver James Associates
Rate: £450 - £600 per day
Posted: 16 hours ago
City, London
Oscar
Rate: £300 - £375 per day
Posted: 16 hours ago
City, London
Oscar
Rate: £301 - £400 per day
Posted: Yesterday
City, London
ANSON MCCADE
Rate: £400-£500 and £550-£600
Posted: Yesterday
City, London
james joseph associates
Posted: Yesterday
City of London
Arrows Group Ltd
Rate: £500 - £600 per day
Posted: Yesterday
City, London
TEKsystems
Rate: £600 - £700 per day
Posted: 15 hours ago
City, London
Nigel Frank International Ltd
Rate: £350 - £400 per day
Posted: Yesterday
City, London
Knowit
Rate: £275 - £325 per day
Posted: 3 days ago
City, London
Venturi
Rate: £350 - £425 per day
Posted: Yesterday
City of London
Arrows Group Ltd
Rate: £450 - £550 per day + negotiable
Posted: 4 days ago
City, London
Knowit
Rate: £350 - £425 per day
Posted: 3 days ago
City, London
ANSON MCCADE
Rate: £450 - £550 per day
Posted: 3 days ago
City of London
Arrows Group Ltd
Rate: £400 - £500 per day
Posted: 4 days ago
City, London
Intrinsic Recruitment Ltd
Rate: Market Rates + Bonus & Benefits
Posted: 4 days ago
City, London
Oscar
Rate: £300 - £340 per day
Posted: 4 days ago
City of London
Pearson Frank
Rate: £300 - £350 per day
Posted: 4 days ago
City of London
Talent Point
Rate: £450.00 - £530.00 per day
Posted: 2 days ago
City of London
Pearson Frank
Rate: £300 - £350 per day
Posted: 5 days ago
City, London
TEKsystems
Rate: £600 - £700 per day
Posted: 2 days ago
City, London
Morgan Mckinley
Rate: £450 - £475 per day
Posted: 5 days ago
City, London
TEKsystems
Rate: £575 - £675 per day
Posted: 3 days ago
City, London
Square One Resources
Rate: From £300 to £400 per day
Posted: 2 days ago
City, London
TEKsystems
Rate: £350 - £400 per day
Posted: 4 days ago
City, London
Intrinsic Recruitment Ltd
Rate: Up to £500 per day + Bonus & Benefits
Posted: 4 days ago