Period
to 22 November 2017

The following table provides summary statistics for contract job vacancies with a requirement for ECMAScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ECMAScript 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.

ECMAScript
UK
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 768 834 854
Rank change year-on-year +66 +20 +13
Contract jobs citing ECMAScript 116 65 50
As % of all contract IT jobs advertised in the UK 0.11% 0.062% 0.044%
As % of the Programming Languages category 0.27% 0.15% 0.12%
Number of daily rates quoted 95 43 36
UK median daily rate £425 £425 £405
Median daily rate % change year-on-year - +4.94% +35.00%
10th Percentile £358 £314 £292
90th Percentile £538 £575 £528
UK excluding London median daily rate £395 £400 £340
% change year-on-year -1.25% +17.65% +13.33%
Number of hourly rates quoted 0 0 0
UK median hourly rate - - -
UK excluding London median hourly rate - - -

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

All Programming Languages
UK
Contract vacancies with a requirement for coding skills 43282 42516 43243
As % of all contract IT jobs advertised in the UK 41.95% 40.32% 38.35%
Number of daily rates quoted 30242 29187 29245
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £308 £281 £269
90th Percentile £638 £588 £588
UK excluding London median daily rate £400 £375 £370
% change year-on-year +6.67% +1.35% +5.71%
Number of hourly rates quoted 806 887 1038
UK median hourly rate £40.00 £37.50 £37.45
Median hourly rate % change year-on-year +6.67% +0.13% +20.81%
10th Percentile £16.25 £14.40 £14.13
90th Percentile £52.50 £52.50 £50.00
UK excluding London median hourly rate £40.00 £37.50 £37.50
% change year-on-year +6.67% - +19.05%

ECMAScript
Job Vacancy Trend

Job postings citing ECMAScript as a percentage of all IT jobs advertised.

Job vacancy trend for ECMAScript in the UK

ECMAScript
Contractor Daily Rate Trend

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

Contractor daily rate trend for ECMAScript in the UK

ECMAScript
Contractor Daily Rate Histogram

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

Contractor daily rate histogram for ECMAScript in the UK

ECMAScript
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ECMAScript within the UK over the 6 months to 22 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +64 110 £403 -10.56% 9
UK excluding London +70 62 £395 -1.25% 6
London -19 54 £493 +6.49% 3
South East +46 39 £365 -3.31% 5
North of England +74 10 £425 -5.56% 1
North West +15 6 £420 +5.00%
Scotland -5 6 £500 +42.86%
Yorkshire +24 4 £450 - 1
South West +6 3 £391 +4.33%
Midlands +24 2 £325 -
East Midlands -4 2 £325 -
East of England -14 2 £400 -1.54%

For the 6 months to 22 November 2017, IT contractor jobs citing ECMAScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for ECMAScript.

1 116 (100.00%) JavaScript
2 94 (81.03%) CSS
3 87 (75.00%) HTML
4 76 (65.52%) HTML5
5 70 (60.34%) ES6
6 68 (58.62%) Agile Software Development
7 62 (53.45%) AngularJS
8 60 (51.72%) Node.js
9 59 (50.86%) CSS3
10 57 (49.14%) npm
11 56 (48.28%) Front End Development
11 56 (48.28%) webpack
12 55 (47.41%) React
13 52 (44.83%) Sass
14 50 (43.10%) gulp
15 47 (40.52%) Redux
16 42 (36.21%) Scrum
17 40 (34.48%) TDD
17 40 (34.48%) JSON
17 40 (34.48%) Twitter Bootstrap
18 36 (31.03%) BDD
19 30 (25.86%) Git (software)
20 29 (25.00%) Test Automation
20 29 (25.00%) RESTful
20 29 (25.00%) REST
21 28 (24.14%) Babel
22 27 (23.28%) jQuery
23 26 (22.41%) Karma Test Runner
24 24 (20.69%) Jasmine
25 23 (19.83%) WebSockets

ECMAScript
Co-occurring IT Skills 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 (6.90%) CMS
2 3 (2.59%) Elasticsearch
2 3 (2.59%) NServiceBus
3 2 (1.72%) SAS
4 1 (0.86%) CICS
4 1 (0.86%) JBoss
4 1 (0.86%) WebSphere
4 1 (0.86%) WildFly
Applications
1 14 (12.07%) Photoshop
2 6 (5.17%) Adobe Illustrator
3 2 (1.72%) OmniGraffle
Business Applications
1 2 (1.72%) SDL Web 8
Cloud Services
1 57 (49.14%) npm
2 19 (16.38%) SaaS
3 10 (8.62%) Firebase
4 3 (2.59%) Amazon AWS
5 2 (1.72%) AWS Elastic Beanstalk
5 2 (1.72%) GitHub
5 2 (1.72%) Microsoft Azure
6 1 (0.86%) Linode
Communications & Networking
1 9 (7.76%) HTTP
2 6 (5.17%) Internet
Database & Business Intelligence
1 5 (4.31%) SQLite
2 4 (3.45%) MongoDB
2 4 (3.45%) Relational Database
3 3 (2.59%) Aerospike
3 3 (2.59%) MySQL
3 3 (2.59%) NoSQL
4 2 (1.72%) PostgreSQL
4 2 (1.72%) RDBMS
4 2 (1.72%) SQL Server
5 1 (0.86%) DB2
5 1 (0.86%) SQL Server 2012
5 1 (0.86%) SQL Server Integration Services
Development Applications
1 56 (48.28%) webpack
2 50 (43.10%) gulp
3 30 (25.86%) Git (software)
4 28 (24.14%) Babel
5 26 (22.41%) Karma Test Runner
6 24 (20.69%) Jasmine
7 19 (16.38%) Grunt
7 19 (16.38%) Protractor
8 13 (11.21%) PostCSS
9 11 (9.48%) Bower
10 10 (8.62%) JIRA
11 6 (5.17%) Mercurial
11 6 (5.17%) Mocha
12 4 (3.45%) Gradle
13 3 (2.59%) Jenkins
13 3 (2.59%) JSUnit
13 3 (2.59%) NUnit
13 3 (2.59%) SpecFlow
13 3 (2.59%) Visual Studio
13 3 (2.59%) Visual Studio Team System
General
1 16 (13.79%) Finance
2 8 (6.90%) Marketing
3 7 (6.03%) Electronics
3 7 (6.03%) Manufacturing
3 7 (6.03%) Telecoms
4 4 (3.45%) Games
5 2 (1.72%) Banking
5 2 (1.72%) Retail
6 1 (0.86%) Retail Banking
Job Titles
1 103 (88.79%) Developer
2 35 (30.17%) Front End Developer (Client-Side Developer)
3 31 (26.72%) JavaScript Developer
4 22 (18.97%) Senior Developer
5 13 (11.21%) Android Developer
6 10 (8.62%) Senior JavaScript Developer
7 7 (6.03%) .NET Developer
7 7 (6.03%) Angular Developer
7 7 (6.03%) Lead Developer
7 7 (6.03%) Node.js Developer
8 6 (5.17%) Senior Android Developer
9 5 (4.31%) Applications Developer
9 5 (4.31%) Senior Applications Developer
9 5 (4.31%) Test Engineer
10 4 (3.45%) Full Stack Developer
10 4 (3.45%) HTML Developer
10 4 (3.45%) Senior Front-End Developer
11 3 (2.59%) Mobile Developer
11 3 (2.59%) Senior .NET Developer
11 3 (2.59%) Senior Full Stack Developer
Libraries, Frameworks & Software Standards
1 94 (81.03%) CSS
2 87 (75.00%) HTML
3 76 (65.52%) HTML5
4 62 (53.45%) AngularJS
5 60 (51.72%) Node.js
6 59 (50.86%) CSS3
7 55 (47.41%) React
8 52 (44.83%) Sass
9 47 (40.52%) Redux
10 40 (34.48%) JSON
10 40 (34.48%) Twitter Bootstrap
11 29 (25.00%) REST
11 29 (25.00%) RESTful
12 27 (23.28%) jQuery
13 23 (19.83%) .NET
13 23 (19.83%) React Native
13 23 (19.83%) WebSockets
14 17 (14.66%) ASP.NET
15 13 (11.21%) Ionic Framework
16 11 (9.48%) KnockoutJS
Miscellaneous
1 21 (18.10%) User Experience
2 20 (17.24%) Computer Science
3 10 (8.62%) Mobile App
4 8 (6.90%) Data Structures
5 7 (6.03%) Greenfield Project
6 6 (5.17%) Fintech
7 2 (1.72%) Graphic Design
7 2 (1.72%) iPad
7 2 (1.72%) Smartphone
7 2 (1.72%) W3C
8 1 (0.86%) Mainframe
8 1 (0.86%) Smart Home
8 1 (0.86%) Smart Meter
8 1 (0.86%) Video\Live Streaming
Operating Systems
1 18 (15.52%) Android
2 5 (4.31%) Apple iOS
2 5 (4.31%) Unix
3 2 (1.72%) Linux
4 1 (0.86%) zOS
Processes & Methodologies
1 68 (58.62%) Agile Software Development
2 56 (48.28%) Front End Development
3 42 (36.21%) Scrum
4 40 (34.48%) TDD
5 36 (31.03%) BDD
6 29 (25.00%) Test Automation
7 22 (18.97%) Unit Testing
8 21 (18.10%) Open Source
9 19 (16.38%) Continuous Integration
9 19 (16.38%) CRM
10 17 (14.66%) Web Development
11 14 (12.07%) Android Development
12 13 (11.21%) MVC
13 12 (10.34%) Dependency Management
13 12 (10.34%) Performance Optimisation
14 11 (9.48%) Change Management
14 11 (9.48%) Software Engineering
14 11 (9.48%) Wireframes
15 10 (8.62%) Web Application Development
16 9 (7.76%) Business Intelligence
Programming Languages
1 116 (100.00%) JavaScript
2 70 (60.34%) ES6
3 19 (16.38%) Java
4 18 (15.52%) C#
5 14 (12.07%) TypeScript
6 11 (9.48%) Python
7 10 (8.62%) Bash Shell
8 3 (2.59%) T-SQL
9 2 (1.72%) Dart
10 1 (0.86%) COBOL
10 1 (0.86%) Groovy
10 1 (0.86%) PHP
10 1 (0.86%) Ruby
10 1 (0.86%) Scala
10 1 (0.86%) VB.NET
Qualifications
1 20 (17.24%) Degree
2 19 (16.38%) Computer Science Degree
3 2 (1.72%) OCPJP
3 2 (1.72%) Security Cleared
4 1 (0.86%) CESG Certified Professional
4 1 (0.86%) CISSP
4 1 (0.86%) SC Cleared
Vendors
1 19 (16.38%) Twitter
2 10 (8.62%) Atlassian
3 8 (6.90%) Microsoft
4 7 (6.03%) SAP
5 1 (0.86%) Zend