Period
to 24 February 2018

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 24 February 2018 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
24 Feb 2018
Same period 2017 Same period 2016
Rank 32 36 8
Rank change year-on-year +4 -28 +17
Contract jobs citing JavaScript 79 29 63
As % of all contract IT jobs advertised in Croydon 7.52% 6.18% 14.13%
As % of the Programming Languages category 16.74% 16.02% 41.72%
Number of daily rates quoted 71 27 48
Croydon median daily rate £500 £400 £400
Median daily rate % change year-on-year +25.00% - -
10th Percentile £338 £213 £321
90th Percentile £610 £500 £458
South London median daily rate £475 £360 £350
% change year-on-year +31.94% +2.86% -
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - - -

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 472 181 151
As % of all contract IT jobs advertised in Croydon 44.91% 38.59% 33.86%
Number of daily rates quoted 333 99 112
Croydon median daily rate £500 £438 £413
Median daily rate % change year-on-year +14.29% +6.06% -
10th Percentile £363 £272 £300
90th Percentile £625 £588 £488
South London median daily rate £500 £419 £375
% change year-on-year +19.40% +11.67% -
Number of hourly rates quoted 0 0 1
Croydon median hourly rate - - £42.50
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 24 February 2018.

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 24 February 2018, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Croydon region with a requirement for JavaScript.

1 47 (59.49%) Java
2 45 (56.96%) Security Cleared
3 40 (50.63%) SC Cleared
4 39 (49.37%) Test Automation
5 35 (44.30%) Node.js
6 32 (40.51%) Agile Software Development
7 26 (32.91%) AngularJS
8 23 (29.11%) Spring
9 21 (26.58%) HTML
9 21 (26.58%) Redux
10 20 (25.32%) Redis
10 20 (25.32%) DevOps
10 20 (25.32%) Spring Boot
11 17 (21.52%) Sass
12 16 (20.25%) CSS
12 16 (20.25%) REST
12 16 (20.25%) React
12 16 (20.25%) Protractor
13 15 (18.99%) Apache Camel
14 14 (17.72%) Grunt
14 14 (17.72%) gulp
15 13 (16.46%) Git (software)
15 13 (16.46%) Web Services
15 13 (16.46%) Front End Development
15 13 (16.46%) Docker
16 12 (15.19%) PostgreSQL
16 12 (15.19%) Continuous Integration
17 11 (13.92%) Scrum
17 11 (13.92%) SQL
17 11 (13.92%) Microservices

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 8 (10.13%) Confluence
2 6 (7.59%) Elasticsearch
3 2 (2.53%) Tomcat
4 1 (1.27%) CMS
4 1 (1.27%) EPiServer
4 1 (1.27%) SharePoint
Applications
1 1 (1.27%) Adobe Creative Suite
1 1 (1.27%) InDesign
Cloud Services
1 6 (7.59%) Amazon AWS
1 6 (7.59%) npm
2 2 (2.53%) Microsoft Azure
3 1 (1.27%) Oracle CX
3 1 (1.27%) Oracle Service Cloud
Communications & Networking
1 4 (5.06%) HTTP
2 2 (2.53%) OpenVPN
3 1 (1.27%) SMS
Database & Business Intelligence
1 20 (25.32%) Redis
2 12 (15.19%) PostgreSQL
3 10 (12.66%) Relational Database
3 10 (12.66%) SQL Server
4 8 (10.13%) Neo4j
5 6 (7.59%) MySQL
6 5 (6.33%) Hadoop
6 5 (6.33%) MongoDB
7 3 (3.80%) HBase
8 2 (2.53%) RDBMS
8 2 (2.53%) SQL Server 2016
9 1 (1.27%) NoSQL
9 1 (1.27%) SQL Server Integration Services
Development Applications
1 16 (20.25%) Protractor
2 14 (17.72%) Grunt
2 14 (17.72%) gulp
3 13 (16.46%) Git (software)
4 10 (12.66%) Jasmine
4 10 (12.66%) JMeter
4 10 (12.66%) Selenium
5 9 (11.39%) webpack
6 8 (10.13%) Jenkins
6 8 (10.13%) JIRA
7 6 (7.59%) Cucumber
7 6 (7.59%) Karma Test Runner
8 5 (6.33%) Babel
8 5 (6.33%) JUnit
9 3 (3.80%) WebDriver
10 2 (2.53%) GitLab
10 2 (2.53%) Maven
11 1 (1.27%) Mockito
11 1 (1.27%) SoapUI
11 1 (1.27%) Vagrant
General
1 8 (10.13%) Law
Job Titles
1 57 (72.15%) Developer
2 17 (21.52%) Java Developer
3 16 (20.25%) Front End Developer (Client-Side Developer)
4 14 (17.72%) JavaScript Developer
5 13 (16.46%) Angular Developer
5 13 (16.46%) Full Stack Developer
6 12 (15.19%) Automation Tester
6 12 (15.19%) Tester
7 11 (13.92%) Node.js Developer
8 8 (10.13%) UI Developer
9 7 (8.86%) React Developer
10 6 (7.59%) Senior Developer
11 5 (6.33%) Senior UI Developer
12 3 (3.80%) HTML CSS Developer
12 3 (3.80%) HTML Developer
12 3 (3.80%) Scala Developer
12 3 (3.80%) Software Developer
12 3 (3.80%) Technical Leader
13 2 (2.53%) DevOps Engineer
13 2 (2.53%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 35 (44.30%) Node.js
2 26 (32.91%) AngularJS
3 23 (29.11%) Spring
4 21 (26.58%) HTML
4 21 (26.58%) Redux
5 20 (25.32%) Spring Boot
6 17 (21.52%) Sass
7 16 (20.25%) CSS
7 16 (20.25%) React
7 16 (20.25%) REST
8 15 (18.99%) Apache Camel
9 13 (16.46%) Web Services
10 10 (12.66%) Express
11 9 (11.39%) HTML5
11 9 (11.39%) RESTful
12 8 (10.13%) CSS3
12 8 (10.13%) jQuery
12 8 (10.13%) RESTEasy
13 7 (8.86%) JMS
13 7 (8.86%) JSON
Miscellaneous
1 6 (7.59%) Greenfield Project
2 1 (1.27%) Analytical Skills
2 1 (1.27%) Enterprise Software
2 1 (1.27%) Mainframe
2 1 (1.27%) User Experience
Operating Systems
1 5 (6.33%) Linux
1 5 (6.33%) Mac OS X
1 5 (6.33%) Unix
2 1 (1.27%) VMS
Processes & Methodologies
1 39 (49.37%) Test Automation
2 32 (40.51%) Agile Software Development
3 20 (25.32%) DevOps
4 13 (16.46%) Front End Development
5 12 (15.19%) Continuous Integration
6 11 (13.92%) Microservices
6 11 (13.92%) Scrum
7 10 (12.66%) TDD
8 9 (11.39%) BDD
8 9 (11.39%) CQRS
9 8 (10.13%) Exploratory Testing
10 6 (7.59%) Continuous Deployment
10 6 (7.59%) Domain-Driven Design
10 6 (7.59%) OWASP
10 6 (7.59%) Responsive Web Design
10 6 (7.59%) Unit Testing
10 6 (7.59%) Web Design
11 5 (6.33%) MVC
11 5 (6.33%) Web Accessibility
11 5 (6.33%) Workflow
Programming Languages
1 47 (59.49%) Java
2 11 (13.92%) SQL
3 4 (5.06%) C#
3 4 (5.06%) Scala
4 3 (3.80%) C
4 3 (3.80%) Python
5 2 (2.53%) Bash Shell
5 2 (2.53%) Groovy
5 2 (2.53%) Ruby
6 1 (1.27%) PHP
6 1 (1.27%) PL/SQL
6 1 (1.27%) VB.NET
Qualifications
1 45 (56.96%) Security Cleared
2 40 (50.63%) SC Cleared
3 6 (7.59%) DV Cleared
4 5 (6.33%) BPSS Clearance
Quality Assurance & Compliance
1 2 (2.53%) QA
2 1 (1.27%) Disclosure Scotland
2 1 (1.27%) WCAG
System Software
1 13 (16.46%) Docker
2 2 (2.53%) Active Directory
2 2 (2.53%) Squid
Systems Management
1 4 (5.06%) Kubernetes
2 3 (3.80%) Kibana
3 2 (2.53%) Ansible
3 2 (2.53%) Terraform
4 1 (1.27%) Business Desktop Deployment
4 1 (1.27%) Grafana
4 1 (1.27%) Systems Management Server (SMS)
Vendors
1 4 (5.06%) MuleSoft
2 3 (3.80%) IBM
3 2 (2.53%) Oracle
3 2 (2.53%) Splunk
4 1 (1.27%) Adobe
4 1 (1.27%) Capita
4 1 (1.27%) Citrix
4 1 (1.27%) ServiceNow
4 1 (1.27%) Snow
4 1 (1.27%) XMPie