Period
to 19 June 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 19 June 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
19 Jun 2018
Same period 2017 Same period 2016
Rank 12 10 7
Rank change year-on-year -2 -3 +2
Contract jobs citing JavaScript 135 52 71
As % of all contract IT jobs advertised in Croydon 12.52% 13.90% 13.22%
As % of the Programming Languages category 27.33% 26.00% 36.04%
Number of daily rates quoted 89 33 63
Croydon median daily rate £475 £425 £400
Median daily rate % change year-on-year +11.76% +6.25% +6.67%
10th Percentile £300 £220 £307
90th Percentile £600 £570 £488
South London median daily rate £450 £400 £388
% change year-on-year +12.50% +3.23% +19.23%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate £41.75 - £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 494 200 197
As % of all contract IT jobs advertised in Croydon 45.83% 53.48% 36.69%
Number of daily rates quoted 323 103 154
Croydon median daily rate £500 £450 £401
Median daily rate % change year-on-year +11.11% +12.15% +7.00%
10th Percentile £356 £318 £300
90th Percentile £613 £560 £509
South London median daily rate £475 £450 £400
% change year-on-year +5.56% +12.50% +11.50%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate £45.00 £47.83 £47.83
% change year-on-year -5.92% - -8.32%

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 19 June 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 19 June 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 69 (51.11%) Security Cleared
2 68 (50.37%) HTML
3 66 (48.89%) CSS
3 66 (48.89%) Node.js
4 63 (46.67%) SC Cleared
4 63 (46.67%) AngularJS
5 62 (45.93%) Java
5 62 (45.93%) Front End Development
6 59 (43.70%) CSS3
7 54 (40.00%) Test Automation
8 49 (36.30%) Agile Software Development
9 48 (35.56%) Grunt
10 46 (34.07%) Jasmine
11 44 (32.59%) Karma Test Runner
11 44 (32.59%) HTML5
12 37 (27.41%) TDD
13 36 (26.67%) Sass
14 35 (25.93%) Redux
15 32 (23.70%) gulp
15 32 (23.70%) Git (software)
16 31 (22.96%) Scrum
16 31 (22.96%) Adobe
17 30 (22.22%) Photoshop
17 30 (22.22%) React
18 28 (20.74%) JIRA
18 28 (20.74%) Spring
19 27 (20.00%) jQuery
20 26 (19.26%) Redis
21 25 (18.52%) Continuous Deployment
21 25 (18.52%) DevOps

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 25 (18.52%) Confluence
2 14 (10.37%) WordPress
3 8 (5.93%) Elasticsearch
4 5 (3.70%) Tomcat
5 3 (2.22%) Apache Spark
5 3 (2.22%) JBoss
5 3 (2.22%) Jetty
5 3 (2.22%) Oracle Self-Service HR
5 3 (2.22%) WebLogic
6 2 (1.48%) SharePoint
7 1 (0.74%) CMS
7 1 (0.74%) EPiServer
7 1 (0.74%) Sitecore CMS
Applications
1 30 (22.22%) Photoshop
2 3 (2.22%) Microsoft Excel
3 1 (0.74%) Adobe Creative Suite
3 1 (0.74%) InDesign
Cloud Services
1 13 (9.63%) npm
2 11 (8.15%) Amazon AWS
3 10 (7.41%) SaaS
4 3 (2.22%) GitHub
4 3 (2.22%) Microsoft Azure
5 1 (0.74%) Force.com
5 1 (0.74%) Office 365
Communications & Networking
1 4 (2.96%) HTTP
2 3 (2.22%) SSH
3 2 (1.48%) OpenVPN
3 2 (1.48%) SMS
4 1 (0.74%) DNS
Database & Business Intelligence
1 26 (19.26%) Redis
2 14 (10.37%) PostgreSQL
3 12 (8.89%) MySQL
3 12 (8.89%) SQL Server
4 7 (5.19%) MongoDB
4 7 (5.19%) Neo4j
5 6 (4.44%) Hadoop
6 5 (3.70%) Relational Database
7 3 (2.22%) HBase
7 3 (2.22%) Oracle Database
8 2 (1.48%) Data Warehouse
8 2 (1.48%) SQL Server 2016
Development Applications
1 48 (35.56%) Grunt
2 46 (34.07%) Jasmine
3 44 (32.59%) Karma Test Runner
4 32 (23.70%) Git (software)
4 32 (23.70%) gulp
5 28 (20.74%) JIRA
6 16 (11.85%) webpack
7 12 (8.89%) Selenium
8 11 (8.15%) Babel
9 10 (7.41%) Jenkins
10 9 (6.67%) Cucumber
11 7 (5.19%) Maven
11 7 (5.19%) Protractor
12 6 (4.44%) Hudson
13 4 (2.96%) Ant
13 4 (2.96%) GitLab
13 4 (2.96%) Gradle
13 4 (2.96%) JMeter
13 4 (2.96%) Subversion
13 4 (2.96%) Travis CI
General
1 16 (11.85%) Retail
2 5 (3.70%) Law
3 4 (2.96%) Finance
Job Titles
1 121 (89.63%) Developer
2 74 (54.81%) Front End Developer (Client-Side Developer)
3 45 (33.33%) JavaScript Developer
4 28 (20.74%) UI Developer
5 26 (19.26%) Angular Developer
5 26 (19.26%) Node.js Developer
6 19 (14.07%) React Developer
7 17 (12.59%) HTML CSS Developer
7 17 (12.59%) HTML Developer
8 15 (11.11%) Java Developer
9 11 (8.15%) Senior Developer
10 9 (6.67%) WordPress Developer
11 8 (5.93%) Full Stack Developer
12 6 (4.44%) Senior Front-End Developer
12 6 (4.44%) Senior UI Developer
13 4 (2.96%) Automation Tester
13 4 (2.96%) Junior
13 4 (2.96%) Junior Developer
13 4 (2.96%) Junior Front End Developer (Client-Side Developer)
13 4 (2.96%) Tester
Libraries, Frameworks & Software Standards
1 68 (50.37%) HTML
2 66 (48.89%) CSS
2 66 (48.89%) Node.js
3 63 (46.67%) AngularJS
4 59 (43.70%) CSS3
5 44 (32.59%) HTML5
6 36 (26.67%) Sass
7 35 (25.93%) Redux
8 30 (22.22%) React
9 28 (20.74%) Spring
10 27 (20.00%) jQuery
11 25 (18.52%) Spring Boot
12 18 (13.33%) Apache Camel
13 15 (11.11%) Express
14 8 (5.93%) REST
15 7 (5.19%) Hibernate
16 6 (4.44%) Ajax
16 6 (4.44%) J2EE
16 6 (4.44%) RabbitMQ
16 6 (4.44%) Web Services
Miscellaneous
1 18 (13.33%) User Experience
2 14 (10.37%) W3C
3 6 (4.44%) Greenfield Project
4 3 (2.22%) Derivative
5 2 (1.48%) NHS
Operating Systems
1 8 (5.93%) Linux
1 8 (5.93%) Mac OS X
2 6 (4.44%) Unix
3 3 (2.22%) Android
3 3 (2.22%) Apple iOS
3 3 (2.22%) CentOS
3 3 (2.22%) Debian
3 3 (2.22%) Red Hat Enterprise Linux
3 3 (2.22%) Ubuntu
3 3 (2.22%) Windows
Processes & Methodologies
1 62 (45.93%) Front End Development
2 54 (40.00%) Test Automation
3 49 (36.30%) Agile Software Development
4 37 (27.41%) TDD
5 31 (22.96%) Scrum
6 25 (18.52%) Continuous Deployment
6 25 (18.52%) DevOps
7 24 (17.78%) Web Development
8 23 (17.04%) OO
9 22 (16.30%) Responsive Web Design
10 18 (13.33%) E-Commerce
10 18 (13.33%) MVC
11 17 (12.59%) MVVM
12 14 (10.37%) Microservices
13 11 (8.15%) Problem-Solving
14 10 (7.41%) Unit Testing
15 9 (6.67%) BDD
16 5 (3.70%) Continuous Integration
16 5 (3.70%) Web Accessibility
16 5 (3.70%) Web Design
Programming Languages
1 62 (45.93%) Java
2 17 (12.59%) SQL
3 10 (7.41%) ES6
4 6 (4.44%) Java 8
5 4 (2.96%) PL/SQL
6 3 (2.22%) Bash Shell
6 3 (2.22%) C
6 3 (2.22%) C++
6 3 (2.22%) Clojure
6 3 (2.22%) ClojureScript
6 3 (2.22%) Groovy
6 3 (2.22%) Perl
6 3 (2.22%) Python
6 3 (2.22%) Ruby
6 3 (2.22%) Scala
6 3 (2.22%) T-SQL
6 3 (2.22%) TypeScript
6 3 (2.22%) VBA
7 2 (1.48%) PHP
8 1 (0.74%) VB.NET
Qualifications
1 69 (51.11%) Security Cleared
2 63 (46.67%) SC Cleared
3 9 (6.67%) DV Cleared
4 1 (0.74%) BPSS Clearance
Quality Assurance & Compliance
1 2 (1.48%) PMO
1 2 (1.48%) QA
2 1 (0.74%) Disclosure Scotland
System Software
1 14 (10.37%) Docker
2 2 (1.48%) Active Directory
2 2 (1.48%) Squid
Systems Management
1 3 (2.22%) Puppet
1 3 (2.22%) Salt
2 1 (0.74%) Business Desktop Deployment
2 1 (0.74%) Grafana
2 1 (0.74%) Kibana
2 1 (0.74%) Kubernetes
2 1 (0.74%) Single Sign-On
2 1 (0.74%) Systems Management Server (SMS)
Vendors
1 31 (22.96%) Adobe
2 9 (6.67%) hybris
3 4 (2.96%) MuleSoft
4 3 (2.22%) Cloudera
4 3 (2.22%) Hortonworks
4 3 (2.22%) IBM
4 3 (2.22%) Microsoft
4 3 (2.22%) Oracle
4 3 (2.22%) Red Hat
4 3 (2.22%) Sybase
5 2 (1.48%) Capita
5 2 (1.48%) Splunk
6 1 (0.74%) Salesforce.com
6 1 (0.74%) Sitecore
6 1 (0.74%) XMPie