Period
to 25 September 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 25 September 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
25 Sep 2018
Same period 2017 Same period 2016
Rank 23 26 11
Rank change year-on-year +3 -15 -4
Contract jobs citing JavaScript 127 69 78
As % of all contract IT jobs advertised in Croydon 10.65% 11.73% 15.12%
As % of the Programming Languages category 19.16% 20.78% 33.33%
Number of daily rates quoted 86 47 59
Croydon median daily rate £475 £463 £400
Median daily rate % change year-on-year +2.70% +15.63% -4.48%
10th Percentile £300 £360 £323
90th Percentile £575 £555 £503
South London median daily rate £450 £450 £400
% change year-on-year - +12.50% +14.29%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate £38.50 - £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 663 332 234
As % of all contract IT jobs advertised in Croydon 55.57% 56.46% 45.35%
Number of daily rates quoted 471 182 151
Croydon median daily rate £525 £500 £410
Median daily rate % change year-on-year +5.00% +21.95% +4.13%
10th Percentile £380 £375 £305
90th Percentile £575 £636 £525
South London median daily rate £500 £486 £401
% change year-on-year +2.83% +21.18% +14.64%
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate £43.92 £47.83 £21.20
% change year-on-year -8.19% +125.61% -57.60%

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 25 September 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 25 September 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 80 (62.99%) CSS
2 65 (51.18%) HTML
2 65 (51.18%) CSS3
3 58 (45.67%) Front End Development
4 53 (41.73%) AngularJS
5 52 (40.94%) Node.js
6 49 (38.58%) Security Cleared
6 49 (38.58%) Agile Software Development
7 46 (36.22%) Java
8 45 (35.43%) SC Cleared
9 42 (33.07%) Test Automation
9 42 (33.07%) Jasmine
9 42 (33.07%) Grunt
10 41 (32.28%) Karma Test Runner
11 38 (29.92%) HTML5
12 35 (27.56%) TDD
13 34 (26.77%) gulp
14 30 (23.62%) Sass
14 30 (23.62%) Scrum
14 30 (23.62%) Photoshop
14 30 (23.62%) Adobe
15 28 (22.05%) OO
16 26 (20.47%) Web Development
17 25 (19.69%) Git (software)
18 24 (18.90%) Docker
18 24 (18.90%) Redux
19 22 (17.32%) DevOps
20 21 (16.54%) Express
20 21 (16.54%) JIRA
21 20 (15.75%) SaaS

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 (14.96%) Confluence
2 13 (10.24%) WordPress
3 3 (2.36%) JBoss
4 2 (1.57%) SharePoint
5 1 (0.79%) CMS
5 1 (0.79%) EPiServer
5 1 (0.79%) Sitecore CMS
5 1 (0.79%) Tomcat
5 1 (0.79%) WebLogic
5 1 (0.79%) WildFly
Applications
1 30 (23.62%) Photoshop
Cloud Services
1 20 (15.75%) SaaS
2 15 (11.81%) Amazon AWS
3 12 (9.45%) npm
4 3 (2.36%) GitHub
5 1 (0.79%) Force.com
5 1 (0.79%) Office 365
Communications & Networking
1 1 (0.79%) DNS
1 1 (0.79%) SMS
Database & Business Intelligence
1 8 (6.30%) PostgreSQL
1 8 (6.30%) Redis
2 5 (3.94%) MySQL
3 4 (3.15%) Relational Database
3 4 (3.15%) SQL Server
4 2 (1.57%) Data Warehouse
5 1 (0.79%) MongoDB
Development Applications
1 42 (33.07%) Grunt
1 42 (33.07%) Jasmine
2 41 (32.28%) Karma Test Runner
3 34 (26.77%) gulp
4 25 (19.69%) Git (software)
5 21 (16.54%) JIRA
6 12 (9.45%) webpack
7 11 (8.66%) Cucumber
8 10 (7.87%) Babel
8 10 (7.87%) Jenkins
8 10 (7.87%) JMeter
9 9 (7.09%) Selenium
10 7 (5.51%) GitLab
10 7 (5.51%) Hudson
10 7 (5.51%) Maven
10 7 (5.51%) Travis CI
11 3 (2.36%) Gradle
12 2 (1.57%) DbUnit
12 2 (1.57%) JUnit
13 1 (0.79%) TeamCity
General
1 15 (11.81%) Retail
2 1 (0.79%) Legal
Job Titles
1 113 (88.98%) Developer
2 65 (51.18%) Front End Developer (Client-Side Developer)
3 47 (37.01%) JavaScript Developer
4 23 (18.11%) Angular Developer
5 21 (16.54%) UI Developer
6 16 (12.60%) Node.js Developer
7 13 (10.24%) HTML CSS Developer
7 13 (10.24%) HTML Developer
8 12 (9.45%) Java Developer
9 10 (7.87%) Senior Developer
10 9 (7.09%) React Developer
11 7 (5.51%) WordPress Developer
12 5 (3.94%) Senior Front-End Developer
12 5 (3.94%) Senior UI Developer
13 4 (3.15%) JSP Developer
13 4 (3.15%) Junior
13 4 (3.15%) Junior Developer
13 4 (3.15%) Junior Front End Developer (Client-Side Developer)
13 4 (3.15%) SC Cleared Java Developer
14 3 (2.36%) Scala Developer
Libraries, Frameworks & Software Standards
1 80 (62.99%) CSS
2 65 (51.18%) CSS3
2 65 (51.18%) HTML
3 53 (41.73%) AngularJS
4 52 (40.94%) Node.js
5 38 (29.92%) HTML5
6 30 (23.62%) Sass
7 24 (18.90%) Redux
8 21 (16.54%) Express
9 15 (11.81%) React
10 14 (11.02%) jQuery
11 13 (10.24%) Spring
12 11 (8.66%) Spring Boot
13 9 (7.09%) Web Services
14 8 (6.30%) Angular 2
14 8 (6.30%) REST
15 7 (5.51%) Hibernate
15 7 (5.51%) J2EE
15 7 (5.51%) RESTful
16 6 (4.72%) Java EE
Miscellaneous
1 15 (11.81%) User Experience
2 13 (10.24%) W3C
3 4 (3.15%) Greenfield Project
4 2 (1.57%) NHS
Operating Systems
1 2 (1.57%) Linux
2 1 (0.79%) Unix
Processes & Methodologies
1 58 (45.67%) Front End Development
2 49 (38.58%) Agile Software Development
3 42 (33.07%) Test Automation
4 35 (27.56%) TDD
5 30 (23.62%) Scrum
6 28 (22.05%) OO
7 26 (20.47%) Web Development
8 22 (17.32%) DevOps
9 20 (15.75%) Continuous Deployment
10 18 (14.17%) MVC
10 18 (14.17%) MVVM
10 18 (14.17%) Responsive Web Design
11 14 (11.02%) E-Commerce
12 11 (8.66%) Problem-Solving
13 7 (5.51%) Unit Testing
14 6 (4.72%) Collaborative Working
14 6 (4.72%) Microservices
15 5 (3.94%) Decision-Making
15 5 (3.94%) Exploratory Testing
15 5 (3.94%) OWASP
Programming Languages
1 46 (36.22%) Java
2 14 (11.02%) ES6
3 8 (6.30%) SQL
4 7 (5.51%) Java 8
5 6 (4.72%) TypeScript
6 5 (3.94%) Ruby
7 3 (2.36%) Scala
8 1 (0.79%) Apex Code
8 1 (0.79%) PowerShell
Qualifications
1 49 (38.58%) Security Cleared
2 45 (35.43%) SC Cleared
3 1 (0.79%) ITIL Certification
Quality Assurance & Compliance
1 3 (2.36%) QA
2 2 (1.57%) PMO
System Software
1 24 (18.90%) Docker
Systems Management
1 3 (2.36%) Kubernetes
2 2 (1.57%) Ansible
3 1 (0.79%) Opscode Chef
3 1 (0.79%) Puppet
Vendors
1 30 (23.62%) Adobe
2 10 (7.87%) hybris
3 1 (0.79%) Salesforce.com
3 1 (0.79%) ServiceNow
3 1 (0.79%) Sitecore