Period
to 16 January 2019

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 16 January 2019 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 (JavaScript ES2015, ES6)
UK
6 months to
16 Jan 2019
Same period 2018 Same period 2017
Rank 263 303 531
Rank change year-on-year +40 +228 +199
Contract jobs citing ES6 1,020 833 376
As % of all contract IT jobs advertised in the UK 1.03% 0.83% 0.39%
As % of the Programming Languages category 2.31% 1.97% 0.95%
Number of daily rates quoted 792 673 292
UK median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% -5.00%
10th Percentile £356 £358 £358
90th Percentile £650 £631 £625
UK excluding London median daily rate £425 £401 £400
% change year-on-year +5.92% +0.31% +24.03%
Number of hourly rates quoted 1 0 1
UK median hourly rate £35.00 - £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 44,107 42,199 39,431
As % of all contract IT jobs advertised in the UK 44.34% 42.09% 40.83%
Number of daily rates quoted 30,967 29,800 27,080
UK median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% +3.03%
10th Percentile £320 £308 £288
90th Percentile £650 £638 £600
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% -
Number of hourly rates quoted 672 758 860
UK median hourly rate £42.19 £40.00 £40.00
Median hourly rate % change year-on-year +5.48% - +6.67%
10th Percentile £17.02 £16.35 £14.50
90th Percentile £52.50 £52.33 £52.17
UK excluding London median hourly rate £42.50 £40.00 £40.00
% change year-on-year +6.25% - +6.67%

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 16 January 2019.

Contractor daily rate histogram for ES6 in the UK

ES6
Top 15 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 16 January 2019. 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 +39 971 £500 - 429
London +40 748 £525 +2.44% 253
UK excluding London +41 253 £425 +5.92% 188
South East +4 78 £444 +13.78% 41
North of England +16 60 £384 -6.97% 53
Midlands -8 35 £456 +1.39% 27
Yorkshire +8 34 £410 -8.89% 31
Scotland +11 28 £463 +8.82% 5
North West -4 25 £375 - 20
East of England +5 24 £445 +27.14% 27
South West -21 22 £419 +4.69% 28
East Midlands +11 20 £475 +5.56% 10
West Midlands -17 15 £425 +13.33% 17
Wales -3 9 £500 +33.33% 6
North East - 1 £425 - 2

For the 6 months to 16 January 2019, IT contractor jobs citing ES6 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 with a requirement for ES6.

1 949 (93.04%) JavaScript
2 704 (69.02%) CSS
3 666 (65.29%) HTML
4 525 (51.47%) React
5 523 (51.27%) Agile Software Development
6 506 (49.61%) Node.js
7 362 (35.49%) HTML5
8 359 (35.20%) TDD
9 358 (35.10%) AngularJS
10 357 (35.00%) Git (software)
10 357 (35.00%) Front End Development
11 337 (33.04%) Redux
12 300 (29.41%) CSS3
13 281 (27.55%) Sass
14 259 (25.39%) TypeScript
15 230 (22.55%) webpack
16 202 (19.80%) Amazon AWS
17 197 (19.31%) Java
18 196 (19.22%) User Experience
19 190 (18.63%) BDD
20 185 (18.14%) Docker
21 169 (16.57%) Jest
22 168 (16.47%) Express
23 166 (16.27%) Test Automation
23 166 (16.27%) OO
24 161 (15.78%) REST
25 158 (15.49%) Mocha
26 151 (14.80%) gulp
27 150 (14.71%) Unit Testing
28 148 (14.51%) Software Engineering

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 56 (5.49%) Elasticsearch
2 30 (2.94%) Gunicorn
3 28 (2.75%) CMS
4 23 (2.25%) Confluence
5 18 (1.76%) Cloud Foundry
6 14 (1.37%) Apache Spark
7 12 (1.18%) Adobe Experience Manager
8 9 (0.88%) Sitecore CMS
9 8 (0.78%) CoreMedia CMS
10 6 (0.59%) Umbraco
11 5 (0.49%) EPiServer
11 5 (0.49%) SharePoint
12 3 (0.29%) nginx
13 2 (0.20%) Ethereum
13 2 (0.20%) SharePoint 2013
13 2 (0.20%) WordPress
14 1 (0.098%) JBoss
14 1 (0.098%) Marvel
14 1 (0.098%) Mule
14 1 (0.098%) WebSphere
Applications
1 14 (1.37%) Photoshop
2 5 (0.49%) Adobe Illustrator
2 5 (0.49%) InVision
3 2 (0.20%) Fireworks
4 1 (0.098%) Adobe Creative Suite
4 1 (0.098%) Chatbot
Business Applications
1 3 (0.29%) SAP Oil and Gas
2 2 (0.20%) SDL Web 8
Cloud Services
1 202 (19.80%) Amazon AWS
2 120 (11.76%) Serverless
3 93 (9.12%) npm
4 84 (8.24%) AWS Lambda
5 77 (7.55%) Microsoft Azure
6 63 (6.18%) GitHub
7 53 (5.20%) Heroku
8 25 (2.45%) Yarn
9 23 (2.25%) Google Cloud Platform
10 17 (1.67%) Amazon EC2
11 16 (1.57%) Amazon S3
12 14 (1.37%) Azure Functions
13 10 (0.98%) Amazon Kinesis
13 10 (0.98%) CloudFront
14 9 (0.88%) Amazon CloudWatch
14 9 (0.88%) Amazon ELB
14 9 (0.88%) Amazon SQS
14 9 (0.88%) AWS CloudTrail
14 9 (0.88%) Virtual Private Cloud
15 8 (0.78%) AWS CloudFormation
Communications & Networking
1 43 (4.22%) HTTP
2 27 (2.65%) SSL
3 26 (2.55%) DNS
3 26 (2.55%) FTP
3 26 (2.55%) TCP/IP
4 14 (1.37%) Internet
5 2 (0.20%) AMQP
5 2 (0.20%) Kerberos
6 1 (0.098%) HbbTV
6 1 (0.098%) SMS
Database & Business Intelligence
1 106 (10.39%) PostgreSQL
2 89 (8.73%) MySQL
3 85 (8.33%) MongoDB
4 39 (3.82%) Relational Database
5 38 (3.73%) Redis
6 35 (3.43%) Big Data
7 34 (3.33%) SQL Server
8 29 (2.84%) Couchbase
9 21 (2.06%) NoSQL
10 18 (1.76%) Amazon RDS
11 17 (1.67%) Apache Cassandra
11 17 (1.67%) Hadoop
12 14 (1.37%) Blockchain
13 11 (1.08%) Amazon DynamoDB
14 8 (0.78%) SQL Server 2014
15 6 (0.59%) Amazon Aurora
16 3 (0.29%) Hazelcast
16 3 (0.29%) MariaDB
16 3 (0.29%) SAP HANA
17 2 (0.20%) Azure SQL Database
Development Applications
1 357 (35.00%) Git (software)
2 230 (22.55%) webpack
3 158 (15.49%) Mocha
4 151 (14.80%) gulp
5 120 (11.76%) Jasmine
6 115 (11.27%) Jenkins
7 104 (10.20%) Selenium
8 90 (8.82%) Babel
9 72 (7.06%) Karma Test Runner
10 69 (6.76%) Gatling
11 62 (6.08%) JIRA
12 57 (5.59%) Grunt
13 55 (5.39%) Cucumber
14 39 (3.82%) PostCSS
15 37 (3.63%) GitLab
16 34 (3.33%) Maven
17 30 (2.94%) Protractor
17 30 (2.94%) Robot Framework
18 27 (2.65%) Gradle
19 26 (2.55%) Sinon.JS
General
1 137 (13.43%) Finance
2 69 (6.76%) Retail
3 54 (5.29%) Banking
4 25 (2.45%) Front Office
5 20 (1.96%) Publishing
6 16 (1.57%) Marketing
7 15 (1.47%) Law
8 12 (1.18%) Games
9 10 (0.98%) Automotive
10 7 (0.69%) Advertising
11 6 (0.59%) Investment Banking
12 5 (0.49%) Telecoms
13 4 (0.39%) Electronics
13 4 (0.39%) Pharmaceutical
14 2 (0.20%) Digital Economy
14 2 (0.20%) Legal
14 2 (0.20%) Manufacturing
15 1 (0.098%) Billing
15 1 (0.098%) Financial Institution
15 1 (0.098%) Multimedia
Job Titles
1 875 (85.78%) Developer
2 306 (30.00%) React Developer
3 290 (28.43%) Front End Developer (Client-Side Developer)
4 264 (25.88%) JavaScript Developer
5 128 (12.55%) Senior Developer
6 110 (10.78%) Full Stack Developer
7 89 (8.73%) Angular Developer
8 84 (8.24%) Node.js Developer
9 71 (6.96%) Java Developer
10 63 (6.18%) UI Developer
11 54 (5.29%) Software Engineer
12 43 (4.22%) Senior Front-End Developer
12 43 (4.22%) Senior React Developer
13 38 (3.73%) HTML Developer
14 36 (3.53%) Senior JavaScript Developer
15 32 (3.14%) JavaScript Engineer
16 30 (2.94%) HTML CSS Developer
17 28 (2.75%) Lead Developer
17 28 (2.75%) Web Developer
18 24 (2.35%) AWS Developer
Libraries, Frameworks & Software Standards
1 704 (69.02%) CSS
2 666 (65.29%) HTML
3 525 (51.47%) React
4 506 (49.61%) Node.js
5 362 (35.49%) HTML5
6 358 (35.10%) AngularJS
7 337 (33.04%) Redux
8 300 (29.41%) CSS3
9 281 (27.55%) Sass
10 169 (16.57%) Jest
11 168 (16.47%) Express
12 161 (15.78%) REST
13 147 (14.41%) Enzyme
14 126 (12.35%) Chai
15 104 (10.20%) RESTful
16 96 (9.41%) jQuery
17 94 (9.22%) Spring
18 93 (9.12%) Spring Boot
19 90 (8.82%) Twitter Bootstrap
20 87 (8.53%) React Native
Miscellaneous
1 196 (19.22%) User Experience
2 105 (10.29%) Greenfield Project
3 50 (4.90%) Analytical Skills
4 49 (4.80%) Data Structures
5 46 (4.51%) Fintech
6 34 (3.33%) Algorithms
7 28 (2.75%) Mobile App
8 10 (0.98%) Digital Media
9 9 (0.88%) Enterprise Software
9 9 (0.88%) Equities
10 8 (0.78%) Cloud Native
10 8 (0.78%) W3C
11 7 (0.69%) Virtual Team
12 6 (0.59%) Internet of Things
12 6 (0.59%) RIA
12 6 (0.59%) Video\Live Streaming
13 5 (0.49%) NHS
14 4 (0.39%) Derivative
14 4 (0.39%) Hedge funds
15 3 (0.29%) Video on Demand
Operating Systems
1 57 (5.59%) Linux
2 21 (2.06%) Apple iOS
2 21 (2.06%) Unix
3 16 (1.57%) Android
4 2 (0.20%) Windows
5 1 (0.098%) CentOS
5 1 (0.098%) zOS
Processes & Methodologies
1 523 (51.27%) Agile Software Development
2 359 (35.20%) TDD
3 357 (35.00%) Front End Development
4 190 (18.63%) BDD
5 166 (16.27%) OO
5 166 (16.27%) Test Automation
6 150 (14.71%) Unit Testing
7 148 (14.51%) Software Engineering
8 138 (13.53%) Microservices
9 96 (9.41%) Scrum
10 93 (9.12%) Web Development
11 92 (9.02%) DevOps
12 82 (8.04%) Continuous Integration
13 70 (6.86%) Responsive Web Design
14 67 (6.57%) Open Source
15 62 (6.08%) E-Commerce
16 60 (5.88%) Problem-Solving
17 57 (5.59%) Continuous Delivery
18 49 (4.80%) Computer Science
19 48 (4.71%) Pair Programming
Programming Languages
1 949 (93.04%) JavaScript
2 259 (25.39%) TypeScript
3 197 (19.31%) Java
4 123 (12.06%) Python
5 86 (8.43%) ES7
6 79 (7.75%) Java 8
7 53 (5.20%) Go
8 42 (4.12%) C#
9 31 (3.04%) SQL
10 19 (1.86%) PHP
11 16 (1.57%) JSX
11 16 (1.57%) Scala
12 12 (1.18%) Ruby
13 11 (1.08%) Bash Shell
13 11 (1.08%) ES8
14 7 (0.69%) Apple Swift
14 7 (0.69%) Kotlin
15 6 (0.59%) Groovy
16 5 (0.49%) C
16 5 (0.49%) Objective-C
Qualifications
1 25 (2.45%) Degree
2 11 (1.08%) Security Cleared
3 9 (0.88%) Computer Science Degree
4 7 (0.69%) BPSS Clearance
5 4 (0.39%) SC Cleared
6 3 (0.29%) Numerate Degree
7 2 (0.20%) Master's Degree
8 1 (0.098%) BC Cleared
Quality Assurance & Compliance
1 44 (4.31%) QA
2 15 (1.47%) WCAG
3 6 (0.59%) WAI
4 3 (0.29%) Disclosure Scotland
5 1 (0.098%) Data Quality
5 1 (0.098%) ISO/IEC 27001
5 1 (0.098%) PMO
System Software
1 185 (18.14%) Docker
2 3 (0.29%) Apache ZooKeeper
3 2 (0.20%) Varnish
4 1 (0.098%) etcd
4 1 (0.098%) Virtual Machines
4 1 (0.098%) VMware Infrastructure
Systems Management
1 54 (5.29%) Ansible
2 43 (4.22%) Terraform
3 33 (3.24%) Kubernetes
4 26 (2.55%) Docker Swarm
5 6 (0.59%) Marathon
5 6 (0.59%) Mesos
5 6 (0.59%) Puppet
6 5 (0.49%) Opscode Chef
7 2 (0.20%) Kibana
7 2 (0.20%) logstash
8 1 (0.098%) Consul
8 1 (0.098%) Grafana
8 1 (0.098%) TeamSite
Vendors
1 35 (3.43%) Google
2 21 (2.06%) Adobe
2 21 (2.06%) Twitter
3 20 (1.96%) Cypress Semiconductor
4 16 (1.57%) Splunk
5 12 (1.18%) Sitecore
6 7 (0.69%) Microsoft
7 6 (0.59%) Salesforce.com
8 5 (0.49%) Atlassian
8 5 (0.49%) Zend
9 4 (0.39%) SAP
10 3 (0.29%) Oracle
11 2 (0.20%) PayPal
11 2 (0.20%) PubNub
12 1 (0.098%) Apple
12 1 (0.098%) Cognizant
12 1 (0.098%) Interwoven
12 1 (0.098%) Monetate
12 1 (0.098%) VMware
12 1 (0.098%) WorldPay