Period
to 22 November 2017

The following table provides summary statistics for contract job vacancies advertised in Croydon with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 22 November 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)
South London > Croydon
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 33 17 6
Rank change year-on-year -16 -11 +17
Contract jobs citing JavaScript 73 66 65
As % of all contract IT jobs advertised in Croydon 8.38% 12.41% 19.52%
As % of the Programming Languages category 16.40% 28.33% 43.05%
Number of daily rates quoted 57 49 42
Croydon median daily rate £500 £400 £406
Median daily rate % change year-on-year +25.00% -1.54% -14.47%
10th Percentile £325 £302 £326
90th Percentile £552 £500 £475
South London median daily rate £475 £400 £350
% change year-on-year +18.75% +14.29% -6.67%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - £21.20 -

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Croydon with a requirement for coding skills.

All Programming Languages
Croydon
Contract vacancies with a requirement for coding skills 445 233 151
As % of all contract IT jobs advertised in Croydon 51.09% 43.80% 45.35%
Number of daily rates quoted 277 137 92
Croydon median daily rate £500 £410 £400
Median daily rate % change year-on-year +21.95% +2.50% -11.11%
10th Percentile £383 £295 £313
90th Percentile £646 £547 £488
South London median daily rate £500 £413 £350
% change year-on-year +21.21% +17.86% -6.67%
Number of hourly rates quoted 0 0 4
Croydon median hourly rate - - £28.89
South London median hourly rate £47.83 £47.83 £47.83

JavaScript
Job Vacancy Trend in Croydon

Job postings citing JavaScript as a percentage of all IT jobs advertised in Croydon.

Job vacancy trend for JavaScript in Croydon

JavaScript
Contractor Daily Rate Trend in Croydon

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

Contractor daily rate trend for JavaScript in Croydon

JavaScript
Contractor Daily Rate Histogram in Croydon

The daily rate distribution of IT jobs citing JavaScript in Croydon over the 6 months to 22 November 2017.

Contractor daily rate histogram for JavaScript in Croydon

JavaScript
Contractor Hourly Rate Trend in Croydon

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

Contractor hourly rate trend for JavaScript in Croydon

For the 6 months to 22 November 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 Croydon region with a requirement for JavaScript.

1 45 (61.64%) AngularJS
2 42 (57.53%) Java
3 39 (53.42%) Agile Software Development
4 31 (42.47%) Scrum
5 30 (41.10%) HTML
6 28 (38.36%) CSS
7 25 (34.25%) Security Cleared
8 23 (31.51%) Git (software)
8 23 (31.51%) HTML5
9 21 (28.77%) TDD
10 20 (27.40%) Test Automation
10 20 (27.40%) JIRA
11 19 (26.03%) SC Cleared
11 19 (26.03%) Confluence
12 18 (24.66%) RESTful
12 18 (24.66%) MVC
13 17 (23.29%) CSS3
13 17 (23.29%) Jasmine
13 17 (23.29%) DevOps
14 16 (21.92%) Protractor
14 16 (21.92%) Grunt
14 16 (21.92%) Web Development
15 15 (20.55%) Continuous Integration
15 15 (20.55%) OO
16 14 (19.18%) Web Services
16 14 (19.18%) Jenkins
16 14 (19.18%) REST
17 13 (17.81%) CQRS
17 13 (17.81%) Responsive Web Design
17 13 (17.81%) RESTEasy

JavaScript
Co-occurring IT Skills in Croydon 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 19 (26.03%) Confluence
2 2 (2.74%) Apache
2 2 (2.74%) JBoss
2 2 (2.74%) OpenStack
2 2 (2.74%) Tomcat
2 2 (2.74%) WebLogic
3 1 (1.37%) CMS
3 1 (1.37%) Elasticsearch
3 1 (1.37%) EPiServer
3 1 (1.37%) SharePoint
3 1 (1.37%) WordPress
Applications
1 12 (16.44%) Photoshop
2 1 (1.37%) GIMP
Cloud Services
1 6 (8.22%) Amazon AWS
2 4 (5.48%) Microsoft Azure
3 3 (4.11%) GitHub
4 2 (2.74%) npm
Database & Business Intelligence
1 13 (17.81%) PostgreSQL
2 8 (10.96%) Hadoop
3 6 (8.22%) MongoDB
4 5 (6.85%) HBase
4 5 (6.85%) Relational Database
5 4 (5.48%) Big Data
6 3 (4.11%) SQL Server
7 2 (2.74%) Amazon DynamoDB
7 2 (2.74%) DataStax
7 2 (2.74%) NoSQL
7 2 (2.74%) RDBMS
8 1 (1.37%) DocumentDB
8 1 (1.37%) MySQL
8 1 (1.37%) Neo4j
8 1 (1.37%) SQL Server Integration Services
Development Applications
1 23 (31.51%) Git (software)
2 20 (27.40%) JIRA
3 17 (23.29%) Jasmine
4 16 (21.92%) Grunt
4 16 (21.92%) Protractor
5 14 (19.18%) Jenkins
6 13 (17.81%) JMeter
6 13 (17.81%) Karma Test Runner
7 6 (8.22%) Selenium
8 5 (6.85%) Cucumber
8 5 (6.85%) GitLab
8 5 (6.85%) JUnit
9 4 (5.48%) gulp
10 3 (4.11%) webpack
11 2 (2.74%) Codeship
11 2 (2.74%) Mockito
11 2 (2.74%) Travis CI
11 2 (2.74%) WebDriver
12 1 (1.37%) Atlassian Bamboo
12 1 (1.37%) Babel
General
1 2 (2.74%) Publishing
2 1 (1.37%) Electronics
2 1 (1.37%) Finance
2 1 (1.37%) Manufacturing
2 1 (1.37%) Marketing
2 1 (1.37%) Telecoms
Job Titles
1 50 (68.49%) Developer
2 17 (23.29%) Java Developer
3 13 (17.81%) Front End Developer (Client-Side Developer)
4 12 (16.44%) Angular Developer
5 10 (13.70%) Full Stack Developer
6 9 (12.33%) Automation Tester
6 9 (12.33%) Tester
7 6 (8.22%) JavaScript Developer
8 5 (6.85%) UI Developer
9 4 (5.48%) Analyst
9 4 (5.48%) Test Analyst
10 3 (4.11%) Developer in Test
10 3 (4.11%) DevOps Engineer
10 3 (4.11%) Django Developer
10 3 (4.11%) HTML Developer
10 3 (4.11%) SC Cleared Java Developer
10 3 (4.11%) Scala Developer
10 3 (4.11%) Software Developer
10 3 (4.11%) Test Automation Developer
11 2 (2.74%) Senior DevOps
Libraries, Frameworks & Software Standards
1 45 (61.64%) AngularJS
2 30 (41.10%) HTML
3 28 (38.36%) CSS
4 23 (31.51%) HTML5
5 18 (24.66%) RESTful
6 17 (23.29%) CSS3
7 14 (19.18%) REST
7 14 (19.18%) Web Services
8 13 (17.81%) RESTEasy
9 10 (13.70%) JMS
9 10 (13.70%) Sass
10 9 (12.33%) JSON
11 8 (10.96%) Node.js
11 8 (10.96%) Spring
12 7 (9.59%) Apache Camel
13 6 (8.22%) jQuery
13 6 (8.22%) JSF
14 5 (6.85%) Express
14 5 (6.85%) React
15 4 (5.48%) Twitter Bootstrap
Miscellaneous
1 4 (5.48%) Analytical Skills
2 2 (2.74%) User Experience
3 1 (1.37%) Enterprise Software
3 1 (1.37%) Greenfield Project
Operating Systems
1 3 (4.11%) Linux
1 3 (4.11%) Unix
2 2 (2.74%) AIX
3 1 (1.37%) VMS
Processes & Methodologies
1 39 (53.42%) Agile Software Development
2 31 (42.47%) Scrum
3 21 (28.77%) TDD
4 20 (27.40%) Test Automation
5 18 (24.66%) MVC
6 17 (23.29%) DevOps
7 16 (21.92%) Web Development
8 15 (20.55%) Continuous Integration
8 15 (20.55%) OO
9 13 (17.81%) CQRS
9 13 (17.81%) Front End Development
9 13 (17.81%) Responsive Web Design
10 12 (16.44%) MVVM
11 10 (13.70%) OWASP
12 8 (10.96%) BDD
12 8 (10.96%) Domain-Driven Design
12 8 (10.96%) Exploratory Testing
13 7 (9.59%) Microservices
13 7 (9.59%) Open Source
14 6 (8.22%) User Stories
Programming Languages
1 42 (57.53%) Java
2 9 (12.33%) Python
3 8 (10.96%) SQL
4 7 (9.59%) Scala
5 6 (8.22%) Ruby
6 4 (5.48%) Bash Shell
6 4 (5.48%) C#
6 4 (5.48%) Groovy
7 2 (2.74%) Go
7 2 (2.74%) PHP
7 2 (2.74%) VBScript
8 1 (1.37%) ES6
8 1 (1.37%) T-SQL
8 1 (1.37%) TypeScript
Qualifications
1 25 (34.25%) Security Cleared
2 19 (26.03%) SC Cleared
3 5 (6.85%) BPSS Clearance
Quality Assurance & Compliance
1 1 (1.37%) QA
1 1 (1.37%) WCAG
System Software
1 12 (16.44%) Docker
2 2 (2.74%) HDFS
Systems Management
1 7 (9.59%) Kubernetes
2 6 (8.22%) Ansible
2 6 (8.22%) Terraform
3 4 (5.48%) Kibana
4 2 (2.74%) Ambari
4 2 (2.74%) Opscode Chef
4 2 (2.74%) Puppet
4 2 (2.74%) ZABBIX
Vendors
1 11 (15.07%) Adobe
2 4 (5.48%) Oracle
3 2 (2.74%) Google
3 2 (2.74%) Hortonworks
3 2 (2.74%) Splunk
4 1 (1.37%) Capita
4 1 (1.37%) Microsoft
4 1 (1.37%) SAP
4 1 (1.37%) ServiceNow
4 1 (1.37%) Snow
4 1 (1.37%) VMware
4 1 (1.37%) Zend