Period
to 13 December 2017

The following table provides summary statistics for contract job vacancies with a requirement for ES6 skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ES6 over the 6 months to 13 December 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 2015 (ES6, ES2015)
UK
6 months to
13 Dec 2017
Same period 2016 Same period 2015
Rank 300 513 787
Rank change year-on-year +213 +274 +107
Contract jobs citing ES6 872 398 116
As % of all contract IT jobs advertised in the UK 0.84% 0.39% 0.10%
As % of the Programming Languages category 2.01% 0.95% 0.27%
Number of daily rates quoted 696 313 83
UK median daily rate £488 £475 £475
Median daily rate % change year-on-year +2.63% - -
10th Percentile £358 £345 £296
90th Percentile £638 £611 £575
UK excluding London median daily rate £400 £400 £323
% change year-on-year - +24.03% -
Number of hourly rates quoted 0 1 0
UK median hourly rate - £85.00 -
UK excluding London median hourly rate - - -

ES6 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 43405 41744 43261
As % of all contract IT jobs advertised in the UK 42.01% 40.44% 38.44%
Number of daily rates quoted 30457 28667 29365
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £308 £285 £270
90th Percentile £638 £588 £588
UK excluding London median daily rate £400 £375 £375
% change year-on-year +6.67% - +7.14%
Number of hourly rates quoted 778 879 1061
UK median hourly rate £40.00 £39.25 £37.50
Median hourly rate % change year-on-year +1.91% +4.67% +17.21%
10th Percentile £16.25 £14.42 £14.10
90th Percentile £52.08 £52.50 £50.00
UK excluding London median hourly rate £40.00 £39.50 £37.50
% change year-on-year +1.27% +5.33% +15.38%

ES6
Job Vacancy Trend

Job postings citing ES6 as a percentage of all IT jobs advertised.

Job vacancy trend for ES6 in the UK

ES6
Contractor Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing ES6.

Contractor daily rate trend for ES6 in the UK

ES6
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing ES6 over the 6 months to 13 December 2017.

Contractor daily rate histogram for ES6 in the UK

ES6
Top 14 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ES6 within the UK over the 6 months to 13 December 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 +220 839 £500 +5.16% 142
London +121 661 £513 +7.89% 84
UK excluding London +155 203 £400 - 61
South East +47 71 £390 +4.00% 18
Midlands +55 39 £450 +28.57% 5
North of England +61 37 £408 +1.88% 20
North West +19 25 £375 -6.25% 12
Scotland -2 25 £425 +13.33% 3
East Midlands +21 24 £450 +50.00% 3
East of England -5 19 £400 +6.67% 7
South West +18 16 £400 +3.23% 8
West Midlands +31 15 £375 -6.25% 2
Yorkshire +27 12 £450 +5.88% 6
Wales - 2 £375 -

For the 6 months to 13 December 2017, IT contractor jobs citing ES6 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 ES6.

1 832 (95.41%) JavaScript
2 589 (67.55%) CSS
3 540 (61.93%) HTML
4 518 (59.40%) React
5 478 (54.82%) Node.js
6 433 (49.66%) Agile Software Development
7 405 (46.44%) TDD
8 393 (45.07%) HTML5
9 321 (36.81%) AngularJS
10 311 (35.67%) Sass
11 304 (34.86%) Redux
12 296 (33.94%) CSS3
13 254 (29.13%) Front End Development
14 252 (28.90%) webpack
15 221 (25.34%) BDD
16 207 (23.74%) Git (software)
17 181 (20.76%) Test Automation
18 165 (18.92%) Java
19 160 (18.35%) Continuous Integration
20 158 (18.12%) TypeScript
21 153 (17.55%) Scrum
22 151 (17.32%) npm
23 148 (16.97%) User Experience
24 145 (16.63%) gulp
25 135 (15.48%) Docker
26 131 (15.02%) RESTful
27 130 (14.91%) OO
28 129 (14.79%) Babel
29 122 (13.99%) Mocha
30 118 (13.53%) Jenkins

ES6
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 36 (4.13%) Elasticsearch
2 21 (2.41%) CMS
3 13 (1.49%) Adobe Experience Manager
4 8 (0.92%) Apache
5 6 (0.69%) Mongoose
6 4 (0.46%) Confluence
6 4 (0.46%) Jetty
6 4 (0.46%) Tomcat
7 3 (0.34%) Apache Spark
7 3 (0.34%) Jupyter
8 2 (0.23%) Cloud Foundry
8 2 (0.23%) EPiServer
8 2 (0.23%) MQSeries
8 2 (0.23%) WordPress
9 1 (0.11%) CICS
9 1 (0.11%) JBoss
9 1 (0.11%) nginx
9 1 (0.11%) WebSphere
9 1 (0.11%) WildFly
Applications
1 7 (0.80%) Adobe Illustrator
2 4 (0.46%) Photoshop
3 1 (0.11%) GIMP
Business Applications
1 3 (0.34%) RMDS
2 1 (0.11%) Magento
2 1 (0.11%) Shopify
Cloud Services
1 151 (17.32%) npm
2 109 (12.50%) Amazon AWS
3 49 (5.62%) Serverless
4 28 (3.21%) Microsoft Azure
5 26 (2.98%) SaaS
6 23 (2.64%) AWS Lambda
7 22 (2.52%) PaaS
8 21 (2.41%) Heroku
8 21 (2.41%) IaaS
9 18 (2.06%) Yarn
10 17 (1.95%) GitHub
11 15 (1.72%) Amazon SQS
11 15 (1.72%) AWS CloudFormation
12 11 (1.26%) Google Cloud Platform
13 10 (1.15%) Google Play
14 6 (0.69%) AWS Elastic Beanstalk
14 6 (0.69%) CloudFront
15 5 (0.57%) Amazon Kinesis
15 5 (0.57%) Amazon S3
16 4 (0.46%) OpenShift
Communications & Networking
1 33 (3.78%) HTTP
2 21 (2.41%) Internet
3 8 (0.92%) DNS
3 8 (0.92%) FTP
3 8 (0.92%) SSL
3 8 (0.92%) TCP/IP
4 4 (0.46%) Bluetooth
5 2 (0.23%) Ethernet
5 2 (0.23%) LDAP
5 2 (0.23%) Unified Communications
5 2 (0.23%) VPLS
5 2 (0.23%) Wi-Fi
6 1 (0.11%) Skype
6 1 (0.11%) SMS
Database & Business Intelligence
1 57 (6.54%) MongoDB
2 53 (6.08%) NoSQL
3 50 (5.73%) PostgreSQL
4 36 (4.13%) Amazon DynamoDB
5 33 (3.78%) Redis
6 31 (3.56%) Neo4j
7 24 (2.75%) MySQL
8 19 (2.18%) SQL Server
9 17 (1.95%) Apache Cassandra
10 13 (1.49%) Relational Database
11 12 (1.38%) Big Data
12 9 (1.03%) GIS
13 8 (0.92%) SQL Server 2014
14 5 (0.57%) Amazon Redshift
14 5 (0.57%) SQL Server Integration Services
15 4 (0.46%) CouchDB
15 4 (0.46%) RDBMS
15 4 (0.46%) SQL Server 2008
15 4 (0.46%) SQL Server 2016
15 4 (0.46%) SQL Server Reporting Services
Development Applications
1 252 (28.90%) webpack
2 207 (23.74%) Git (software)
3 145 (16.63%) gulp
4 129 (14.79%) Babel
5 122 (13.99%) Mocha
6 118 (13.53%) Jenkins
7 116 (13.30%) Jasmine
8 101 (11.58%) Grunt
9 76 (8.72%) Karma Test Runner
10 58 (6.65%) Protractor
11 49 (5.62%) Selenium
12 40 (4.59%) JIRA
13 32 (3.67%) Cucumber
14 26 (2.98%) Maven
15 21 (2.41%) Sinon.JS
16 17 (1.95%) Bower
16 17 (1.95%) Gerrit
16 17 (1.95%) GitLab
17 15 (1.72%) Appium
17 15 (1.72%) Gradle
General
1 111 (12.73%) Finance
2 68 (7.80%) Banking
3 28 (3.21%) Retail
4 21 (2.41%) Marketing
5 20 (2.29%) Front Office
6 18 (2.06%) Games
6 18 (2.06%) Publishing
7 15 (1.72%) Telecoms
8 11 (1.26%) Investment Banking
9 10 (1.15%) Retail Banking
10 7 (0.80%) Financial Institution
11 5 (0.57%) Advertising
12 4 (0.46%) International Banking
13 3 (0.34%) Legal
14 2 (0.23%) Digital Economy
14 2 (0.23%) Multimedia
14 2 (0.23%) Prime Brokerage
15 1 (0.11%) Automotive
15 1 (0.11%) Law
Job Titles
1 751 (86.12%) Developer
2 365 (41.86%) JavaScript Developer
3 222 (25.46%) Front End Developer (Client-Side Developer)
4 107 (12.27%) Senior Developer
5 99 (11.35%) Node.js Developer
6 96 (11.01%) Full Stack Developer
6 96 (11.01%) UI Developer
7 74 (8.49%) HTML Developer
8 67 (7.68%) Java Developer
9 66 (7.57%) Angular Developer
10 52 (5.96%) Senior JavaScript Developer
11 47 (5.39%) JavaScript Engineer
12 45 (5.16%) HTML CSS Developer
13 35 (4.01%) Senior Front-End Developer
14 30 (3.44%) Agile Developer
15 25 (2.87%) Web Developer
16 18 (2.06%) Agile Java Developer
17 13 (1.49%) .NET Developer
17 13 (1.49%) Senior Full Stack Developer
18 12 (1.38%) Senior UI Developer
Libraries, Frameworks & Software Standards
1 589 (67.55%) CSS
2 540 (61.93%) HTML
3 518 (59.40%) React
4 478 (54.82%) Node.js
5 393 (45.07%) HTML5
6 321 (36.81%) AngularJS
7 311 (35.67%) Sass
8 304 (34.86%) Redux
9 296 (33.94%) CSS3
10 131 (15.02%) RESTful
11 113 (12.96%) LESS
12 110 (12.61%) REST
13 109 (12.50%) Web Services
14 96 (11.01%) JSON
15 87 (9.98%) React Native
16 79 (9.06%) Chai
17 77 (8.83%) Express
18 73 (8.37%) Twitter Bootstrap
19 64 (7.34%) Spring
20 51 (5.85%) Vue (Vue.js)
Miscellaneous
1 148 (16.97%) User Experience
2 82 (9.40%) Greenfield Project
3 55 (6.31%) Mobile App
4 44 (5.05%) Computer Science
5 35 (4.01%) Fintech
6 31 (3.56%) Linux Command Line
7 23 (2.64%) Virtual Team
8 22 (2.52%) Analytical Skills
9 17 (1.95%) Derivative
10 13 (1.49%) Foreign Exchange (FX)
11 12 (1.38%) Video on Demand
12 11 (1.26%) Data Structures
13 10 (1.15%) Equities
13 10 (1.15%) Equity Derivative
13 10 (1.15%) Social Media
14 9 (1.03%) Algorithms
15 7 (0.80%) Enterprise Software
15 7 (0.80%) Market Risk
16 6 (0.69%) iPad
16 6 (0.69%) New Media
Operating Systems
1 84 (9.63%) Linux
2 48 (5.50%) Android
3 39 (4.47%) Apple iOS
4 13 (1.49%) Unix
5 11 (1.26%) Mac OS
6 6 (0.69%) Windows
7 4 (0.46%) Mac OS X
7 4 (0.46%) Windows 10
8 3 (0.34%) Red Hat Enterprise Linux
9 2 (0.23%) CentOS
10 1 (0.11%) Debian
10 1 (0.11%) Ubuntu
10 1 (0.11%) zOS
Processes & Methodologies
1 433 (49.66%) Agile Software Development
2 405 (46.44%) TDD
3 254 (29.13%) Front End Development
4 221 (25.34%) BDD
5 181 (20.76%) Test Automation
6 160 (18.35%) Continuous Integration
7 153 (17.55%) Scrum
8 130 (14.91%) OO
9 101 (11.58%) Unit Testing
10 100 (11.47%) Web Development
11 91 (10.44%) E-Commerce
12 83 (9.52%) Software Engineering
13 80 (9.17%) Continuous Delivery
14 71 (8.14%) DevOps
15 68 (7.80%) Pair Programming
16 65 (7.45%) Microservices
17 62 (7.11%) Open Source
18 61 (7.00%) Continuous Improvement
19 59 (6.77%) Responsive Web Design
20 53 (6.08%) MVC
Programming Languages
1 832 (95.41%) JavaScript
2 165 (18.92%) Java
3 158 (18.12%) TypeScript
4 74 (8.49%) ECMAScript
5 61 (7.00%) Python
6 57 (6.54%) SQL
7 41 (4.70%) C#
8 32 (3.67%) GraphQL
9 23 (2.64%) PHP
10 19 (2.18%) Objective-C
11 18 (2.06%) Scala
12 12 (1.38%) Ruby
13 9 (1.03%) C++
13 9 (1.03%) Go
14 8 (0.92%) Groovy
15 7 (0.80%) Apple Swift
16 5 (0.57%) Bash Shell
16 5 (0.57%) F#
16 5 (0.57%) Shell Script
17 4 (0.46%) T-SQL
Qualifications
1 42 (4.82%) Degree
2 39 (4.47%) Computer Science Degree
3 8 (0.92%) SC Cleared
3 8 (0.92%) Security Cleared
4 2 (0.23%) BPSS Clearance
4 2 (0.23%) Master's Degree
4 2 (0.23%) MCSD
4 2 (0.23%) Microsoft Certification
4 2 (0.23%) OCPJP
Quality Assurance & Compliance
1 40 (4.59%) QA
2 19 (2.18%) WCAG
3 13 (1.49%) WAI
4 5 (0.57%) Disclosure Scotland
5 1 (0.11%) GDPR
5 1 (0.11%) ISO/IEC 27001
System Software
1 135 (15.48%) Docker
2 7 (0.80%) Apache ZooKeeper
2 7 (0.80%) Varnish
3 6 (0.69%) etcd
4 1 (0.11%) Active Directory
4 1 (0.11%) VMware Infrastructure
Systems Management
1 30 (3.44%) Ansible
2 24 (2.75%) Terraform
3 19 (2.18%) Opscode Chef
4 15 (1.72%) Kubernetes
5 8 (0.92%) Docker Swarm
6 6 (0.69%) Consul
6 6 (0.69%) Puppet
7 4 (0.46%) Packer
8 3 (0.34%) Kibana
9 2 (0.23%) Mesos
10 1 (0.11%) Business Desktop Deployment
Vendors
1 33 (3.78%) Google
2 30 (3.44%) Twitter
3 15 (1.72%) Apple
3 15 (1.72%) Microsoft
4 11 (1.26%) Adobe
4 11 (1.26%) Atlassian
5 7 (0.80%) Perforce
6 6 (0.69%) FXall
6 6 (0.69%) Reuters
7 4 (0.46%) ESRI
7 4 (0.46%) New Relic
8 3 (0.34%) Apiary
8 3 (0.34%) Avaya
8 3 (0.34%) Cypress Semiconductor
8 3 (0.34%) Mapbox
8 3 (0.34%) Splunk
8 3 (0.34%) Sybase
9 2 (0.23%) Oracle
9 2 (0.23%) Red Hat
9 2 (0.23%) Sun