Period
to 16 October 2018

The following table provides summary statistics for contract job vacancies advertised in London 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 October 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.

ECMAScript 2015 (JavaScript ES2015, ES6)
England > London
6 months to
16 Oct 2018
Same period 2017 Same period 2016
Rank 167 210 331
Rank change year-on-year +43 +121 +224
Contract jobs citing ES6 819 589 323
As % of all contract IT jobs advertised in London 1.77% 1.31% 0.73%
As % of the Programming Languages category 3.53% 2.72% 1.64%
Number of daily rates quoted 626 477 271
London median daily rate £525 £500 £488
Median daily rate % change year-on-year +5.00% +2.56% -2.50%
10th Percentile £388 £394 £375
90th Percentile £675 £650 £638
England median daily rate £500 £475 £475
% change year-on-year +5.26% - -5.00%
Number of hourly rates quoted 0 1 1
London median hourly rate - £51.00 £85.00
Median hourly rate % change year-on-year - -40.00% -
England median hourly rate - £51.00 £85.00
% change year-on-year - -40.00% -

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 advertised in London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 23,184 21,683 19,750
As % of all contract IT jobs advertised in London 50.21% 48.25% 44.46%
Number of daily rates quoted 17,610 16,309 14,843
London median daily rate £525 £500 £450
Median daily rate % change year-on-year +5.00% +11.11% -
10th Percentile £363 £350 £313
90th Percentile £675 £663 £630
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 134 143 111
London median hourly rate £39.00 £35.50 £32.50
Median hourly rate % change year-on-year +9.86% +9.23% +32.03%
10th Percentile £18.00 £17.80 £14.13
90th Percentile £69.55 £51.60 £67.50
England median hourly rate £42.27 £40.00 £37.50
% change year-on-year +5.66% +6.67% +2.74%

ES6
Job Vacancy Trend in London

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

Job vacancy trend for ES6 in London

ES6
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for ES6 in London

ES6
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing ES6 in London over the 6 months to 16 October 2018.

Contractor daily rate histogram for ES6 in London

ES6
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ES6 within the London region over the 6 months to 16 October 2018. 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
Central London -2 151 £550 +10.00% 65
West London -16 22 £519 +12.16% 31
East London -27 21 £475 +5.56% 12
South London -11 17 £450 - 2
North London - 1 £400 - 3
ES6
England

For the 6 months to 16 October 2018, 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 across the London region with a requirement for ES6.

1 765 (93.41%) JavaScript
2 552 (67.40%) CSS
3 499 (60.93%) HTML
4 423 (51.65%) Node.js
5 417 (50.92%) React
6 407 (49.69%) Agile Software Development
7 293 (35.78%) Redux
8 277 (33.82%) Front End Development
9 272 (33.21%) AngularJS
10 267 (32.60%) TDD
11 261 (31.87%) Sass
12 259 (31.62%) HTML5
13 250 (30.53%) Git (software)
14 214 (26.13%) webpack
15 203 (24.79%) CSS3
15 203 (24.79%) Java
16 185 (22.59%) TypeScript
17 182 (22.22%) Docker
18 167 (20.39%) Amazon AWS
19 163 (19.90%) User Experience
20 162 (19.78%) REST
21 156 (19.05%) Finance
22 145 (17.70%) Express
23 143 (17.46%) BDD
24 135 (16.48%) Unit Testing
25 134 (16.36%) OO
26 119 (14.53%) Mocha
27 112 (13.68%) Jest
28 111 (13.55%) Chai
29 110 (13.43%) Enzyme

ES6
Co-occurring IT Skills in London 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 31 (3.79%) Elasticsearch
2 26 (3.17%) CMS
3 23 (2.81%) Apache Spark
4 18 (2.20%) Gunicorn
5 11 (1.34%) Apache
6 9 (1.10%) SharePoint
6 9 (1.10%) Umbraco
7 6 (0.73%) Confluence
7 6 (0.73%) CoreMedia CMS
8 5 (0.61%) Cloud Foundry
8 5 (0.61%) Sitecore CMS
9 4 (0.49%) Adobe Experience Manager
9 4 (0.49%) WordPress
10 3 (0.37%) Ethereum
10 3 (0.37%) nginx
11 2 (0.24%) IIS
11 2 (0.24%) Tomcat
12 1 (0.12%) EPiServer
12 1 (0.12%) Mule
12 1 (0.12%) Oracle SOA Suite
Applications
1 16 (1.95%) Photoshop
2 6 (0.73%) Fireworks
3 5 (0.61%) Chatbot
3 5 (0.61%) GIMP
4 4 (0.49%) InVision
5 2 (0.24%) Adobe Creative Suite
6 1 (0.12%) Adobe Illustrator
6 1 (0.12%) SketchUp
Business Applications
1 3 (0.37%) SAP Oil and Gas
2 2 (0.24%) Shopify
3 1 (0.12%) Distributed Ledger
3 1 (0.12%) RMDS
Cloud Services
1 167 (20.39%) Amazon AWS
2 90 (10.99%) Serverless
3 77 (9.40%) npm
4 69 (8.42%) Microsoft Azure
5 60 (7.33%) Heroku
6 54 (6.59%) GitHub
7 49 (5.98%) AWS Lambda
8 32 (3.91%) Google Cloud Platform
9 11 (1.34%) Azure Functions
10 7 (0.85%) Amazon S3
11 6 (0.73%) Amazon EC2
11 6 (0.73%) Yarn
12 5 (0.61%) Amazon Kinesis
12 5 (0.61%) SaaS
13 4 (0.49%) Amazon CloudWatch
13 4 (0.49%) Amazon ELB
13 4 (0.49%) Amazon SQS
13 4 (0.49%) AWS CloudTrail
13 4 (0.49%) CloudFront
13 4 (0.49%) Virtual Private Cloud
Communications & Networking
1 69 (8.42%) HTTP
2 32 (3.91%) FTP
3 31 (3.79%) SSL
4 30 (3.66%) DNS
4 30 (3.66%) TCP/IP
5 17 (2.08%) Internet
6 3 (0.37%) SMS
7 1 (0.12%) HbbTV
Database & Business Intelligence
1 96 (11.72%) PostgreSQL
2 83 (10.13%) MongoDB
3 60 (7.33%) MySQL
4 31 (3.79%) Relational Database
5 26 (3.17%) Big Data
5 26 (3.17%) Couchbase
6 25 (3.05%) NoSQL
6 25 (3.05%) Redis
7 17 (2.08%) Blockchain
8 14 (1.71%) Apache Cassandra
9 13 (1.59%) Hadoop
9 13 (1.59%) SQL Server
10 9 (1.10%) Amazon RDS
11 6 (0.73%) Amazon DynamoDB
12 4 (0.49%) Data Mining
13 3 (0.37%) Cosmos DB
13 3 (0.37%) SAP HANA
13 3 (0.37%) SQL Server 2014
14 2 (0.24%) Cloud Spanner
14 2 (0.24%) NewSQL
Development Applications
1 250 (30.53%) Git (software)
2 214 (26.13%) webpack
3 119 (14.53%) Mocha
4 106 (12.94%) gulp
5 91 (11.11%) Babel
6 85 (10.38%) Jenkins
7 75 (9.16%) Jasmine
8 72 (8.79%) Selenium
9 53 (6.47%) Gatling
10 48 (5.86%) JIRA
11 46 (5.62%) Grunt
12 44 (5.37%) GitLab
13 34 (4.15%) Cucumber
14 28 (3.42%) Karma Test Runner
15 27 (3.30%) PostCSS
16 25 (3.05%) Gradle
16 25 (3.05%) Maven
17 18 (2.20%) Robot Framework
17 18 (2.20%) Sinon.JS
18 17 (2.08%) Protractor
General
1 156 (19.05%) Finance
2 81 (9.89%) Banking
3 69 (8.42%) Retail
4 14 (1.71%) Front Office
5 13 (1.59%) Advertising
5 13 (1.59%) Law
6 12 (1.47%) Marketing
7 10 (1.22%) Games
7 10 (1.22%) Investment Banking
7 10 (1.22%) Publishing
8 4 (0.49%) Legal
9 3 (0.37%) Electronics
9 3 (0.37%) Telecoms
10 2 (0.24%) Financial Institution
10 2 (0.24%) Pharmaceutical
10 2 (0.24%) Retail Banking
11 1 (0.12%) Automotive
11 1 (0.12%) Avionics
11 1 (0.12%) Billing
11 1 (0.12%) Manufacturing
Job Titles
1 715 (87.30%) Developer
2 291 (35.53%) React Developer
3 215 (26.25%) Front End Developer (Client-Side Developer)
4 193 (23.57%) JavaScript Developer
5 101 (12.33%) Senior Developer
6 98 (11.97%) Full Stack Developer
7 87 (10.62%) Node.js Developer
8 72 (8.79%) Angular Developer
9 66 (8.06%) Java Developer
10 38 (4.64%) Senior React Developer
11 37 (4.52%) Software Engineer
11 37 (4.52%) UI Developer
12 34 (4.15%) Senior Front-End Developer
13 27 (3.30%) Senior JavaScript Developer
14 24 (2.93%) Web Developer
15 23 (2.81%) AWS Developer
16 22 (2.69%) Digital Developer
16 22 (2.69%) HTML Developer
17 21 (2.56%) Lead Developer
18 18 (2.20%) HTML CSS Developer
Libraries, Frameworks & Software Standards
1 552 (67.40%) CSS
2 499 (60.93%) HTML
3 423 (51.65%) Node.js
4 417 (50.92%) React
5 293 (35.78%) Redux
6 272 (33.21%) AngularJS
7 261 (31.87%) Sass
8 259 (31.62%) HTML5
9 203 (24.79%) CSS3
10 162 (19.78%) REST
11 145 (17.70%) Express
12 112 (13.68%) Jest
13 111 (13.55%) Chai
14 110 (13.43%) Enzyme
15 95 (11.60%) RESTful
16 79 (9.65%) React Native
17 78 (9.52%) Spring
18 77 (9.40%) LESS
19 69 (8.42%) OAuth
19 69 (8.42%) OAuth2
Miscellaneous
1 163 (19.90%) User Experience
2 91 (11.11%) Greenfield Project
3 69 (8.42%) Fintech
4 43 (5.25%) Mobile App
5 40 (4.88%) Data Structures
6 39 (4.76%) Analytical Skills
7 35 (4.27%) Computer Science
8 34 (4.15%) Algorithms
9 11 (1.34%) Virtual Team
10 9 (1.10%) Credit Risk
11 8 (0.98%) Cloud Native
12 7 (0.85%) Digital Media
12 7 (0.85%) Enterprise Software
12 7 (0.85%) Foreign Exchange (FX)
13 6 (0.73%) Internet of Things
14 5 (0.61%) Marketing Technology
14 5 (0.61%) Social Media
15 4 (0.49%) Animation
15 4 (0.49%) Video\Live Streaming
15 4 (0.49%) W3C
Operating Systems
1 46 (5.62%) Linux
2 39 (4.76%) Apple iOS
3 34 (4.15%) Android
4 8 (0.98%) Unix
5 1 (0.12%) VMS
Processes & Methodologies
1 407 (49.69%) Agile Software Development
2 277 (33.82%) Front End Development
3 267 (32.60%) TDD
4 143 (17.46%) BDD
5 135 (16.48%) Unit Testing
6 134 (16.36%) OO
7 110 (13.43%) Microservices
8 109 (13.31%) Test Automation
9 106 (12.94%) Scrum
10 100 (12.21%) Software Engineering
11 91 (11.11%) Web Development
12 77 (9.40%) Continuous Integration
13 70 (8.55%) E-Commerce
14 69 (8.42%) DevOps
14 69 (8.42%) Open Source
15 67 (8.18%) Continuous Delivery
16 61 (7.45%) Responsive Web Design
17 49 (5.98%) Problem-Solving
18 48 (5.86%) API Design
19 40 (4.88%) Wireframes
Programming Languages
1 765 (93.41%) JavaScript
2 203 (24.79%) Java
3 185 (22.59%) TypeScript
4 96 (11.72%) ES7
5 94 (11.48%) Python
6 85 (10.38%) Java 8
7 49 (5.98%) Go
8 32 (3.91%) C#
8 32 (3.91%) SQL
9 23 (2.81%) JSX
10 20 (2.44%) Ruby
11 14 (1.71%) Scala
12 9 (1.10%) Kotlin
13 8 (0.98%) Apple Swift
13 8 (0.98%) Bash Shell
14 7 (0.85%) PHP
15 5 (0.61%) ES8
16 4 (0.49%) C++
16 4 (0.49%) Objective-C
17 2 (0.24%) Haskell
Qualifications
1 16 (1.95%) SC Cleared
1 16 (1.95%) Security Cleared
2 11 (1.34%) BPSS Clearance
3 7 (0.85%) Degree
4 5 (0.61%) Computer Science Degree
5 3 (0.37%) Master's Degree
Quality Assurance & Compliance
1 34 (4.15%) QA
2 7 (0.85%) WCAG
3 3 (0.37%) Data Quality
3 3 (0.37%) Disclosure Scotland
3 3 (0.37%) ISO/IEC 27001
4 1 (0.12%) WAI
System Software
1 182 (22.22%) Docker
2 3 (0.37%) Virtual Machines
3 2 (0.24%) Varnish
4 1 (0.12%) Apache ZooKeeper
4 1 (0.12%) etcd
Systems Management
1 53 (6.47%) Ansible
2 42 (5.13%) Terraform
3 33 (4.03%) Kubernetes
4 27 (3.30%) Docker Swarm
5 12 (1.47%) Mesos
6 10 (1.22%) Marathon
7 6 (0.73%) Puppet
8 2 (0.24%) Opscode Chef
9 1 (0.12%) Consul
9 1 (0.12%) Grafana
Vendors
1 37 (4.52%) Google
2 22 (2.69%) Twitter
3 20 (2.44%) Adobe
4 13 (1.59%) Splunk
5 5 (0.61%) Salesforce.com
5 5 (0.61%) Sitecore
5 5 (0.61%) TOWER Software
6 4 (0.49%) Microsoft
7 3 (0.37%) SAP
8 2 (0.24%) Atlassian
8 2 (0.24%) Oracle
8 2 (0.24%) PubNub
9 1 (0.12%) AppDynamics
9 1 (0.12%) Cognizant
9 1 (0.12%) DevExpress
9 1 (0.12%) DoubleClick
9 1 (0.12%) hybris
9 1 (0.12%) Reuters
9 1 (0.12%) Sybase
9 1 (0.12%) Zend