Period
to 7 December 2019

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 7 December 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)
England > London
6 months to
7 Dec 2019
Same period 2018 Same period 2017
Rank 206 169 198
Rank change year-on-year -37 +29 +125
Contract jobs citing ES6 435 793 653
As % of all contract IT jobs advertised in London 1.27% 1.69% 1.37%
As % of the Programming Languages category 2.71% 3.37% 2.83%
Number of daily rates quoted 348 621 536
London median daily rate £539 £525 £513
Median daily rate % change year-on-year +2.62% +2.44% +7.89%
10th Percentile £400 £375 £400
90th Percentile £700 £675 £638
England median daily rate £525 £500 £500
% change year-on-year +5.00% - +5.26%
Number of hourly rates quoted 1 0 0
London median hourly rate £35.00 - -
England median hourly rate £35.00 - -

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 16,070 23,499 23,091
As % of all contract IT jobs advertised in London 46.99% 50.22% 48.59%
Number of daily rates quoted 11,997 17,963 17,590
London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £363 £363 £350
90th Percentile £688 £675 £675
England median daily rate £488 £475 £463
% change year-on-year +2.63% +2.70% +8.82%
Number of hourly rates quoted 121 115 149
London median hourly rate £42.11 £36.00 £32.00
Median hourly rate % change year-on-year +16.97% +12.50% -1.54%
10th Percentile £17.25 £18.53 £18.20
90th Percentile £60.54 £58.75 £50.50
England median hourly rate £43.50 £42.19 £40.00
% change year-on-year +3.11% +5.48% +3.90%

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 7 December 2019.

Contractor daily rate histogram for ES6 in London

ES6
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing ES6 in London.

Contractor hourly rate trend 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 7 December 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
Central London -4 87 £525 -4.55% 54
South London +50 20 £521 +19.14% 8
West London +8 20 £400 -12.51% 20
East London +26 10 £550 +12.82% 6
North London +14 2 £525 +31.25% 5
ES6
England

For the 6 months to 7 December 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 across the London region with a requirement for ES6.

1 401 (92.18%) JavaScript
2 255 (58.62%) React
3 246 (56.55%) CSS
4 227 (52.18%) HTML
5 221 (50.80%) Agile Software Development
6 202 (46.44%) Redux
7 176 (40.46%) Node.js
8 168 (38.62%) Front End Development
8 168 (38.62%) TDD
9 160 (36.78%) AngularJS
10 140 (32.18%) HTML5
11 137 (31.49%) TypeScript
12 117 (26.90%) Sass
13 110 (25.29%) CSS3
13 110 (25.29%) Java
14 89 (20.46%) webpack
15 86 (19.77%) Git (software)
16 85 (19.54%) OO
17 80 (18.39%) Greenfield Project
18 78 (17.93%) Open Source
19 72 (16.55%) Spring
20 71 (16.32%) AWS
20 71 (16.32%) Docker
21 70 (16.09%) Finance
22 66 (15.17%) User Experience
23 63 (14.48%) Jest
23 63 (14.48%) Azure
24 62 (14.25%) Java 8
25 60 (13.79%) Fintech
26 57 (13.10%) Scrum

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 12 (2.76%) Confluence
2 9 (2.07%) Elasticsearch
3 8 (1.84%) CMS
4 7 (1.61%) Magnolia
5 5 (1.15%) Apache
5 5 (1.15%) IIS
5 5 (1.15%) nginx
6 3 (0.69%) ArcGIS
7 2 (0.46%) Sitecore CMS
7 2 (0.46%) Umbraco
7 2 (0.46%) WebSphere
8 1 (0.23%) Adobe Experience Manager
8 1 (0.23%) Apache Spark
8 1 (0.23%) Drupal
Applications
1 5 (1.15%) Photoshop
2 3 (0.69%) Adobe Illustrator
3 2 (0.46%) Sketch
Business Applications
1 4 (0.92%) Shopify
2 2 (0.46%) Magento
Cloud Services
1 71 (16.32%) AWS
2 63 (14.48%) Azure
3 45 (10.34%) GCP
4 39 (8.97%) GitHub
5 32 (7.36%) npm
6 29 (6.67%) Serverless
7 17 (3.91%) AWS Lambda
8 14 (3.22%) Heroku
8 14 (3.22%) Yarn
9 12 (2.76%) OpenShift
10 10 (2.30%) Slack
11 5 (1.15%) Amazon S3
11 5 (1.15%) Cloud Computing
11 5 (1.15%) CloudFront
12 4 (0.92%) Apigee
12 4 (0.92%) Cloudflare
13 3 (0.69%) Amazon SQS
13 3 (0.69%) SaaS
14 2 (0.46%) Trello
15 1 (0.23%) Route 53
Communications & Networking
1 19 (4.37%) HTTP
2 5 (1.15%) HTTPS
2 5 (1.15%) Reverse Proxy
3 3 (0.69%) FTP
3 3 (0.69%) Network Security
4 2 (0.46%) DNS
4 2 (0.46%) SSL
4 2 (0.46%) TCP/IP
Database & Business Intelligence
1 27 (6.21%) NoSQL
2 18 (4.14%) Blockchain
3 16 (3.68%) MySQL
3 16 (3.68%) PostgreSQL
4 14 (3.22%) MongoDB
5 7 (1.61%) Big Data
6 6 (1.38%) Relational Database
6 6 (1.38%) SQL Server
7 3 (0.69%) Couchbase
8 2 (0.46%) Amazon DynamoDB
8 2 (0.46%) Cosmos DB
8 2 (0.46%) Geospatial Data
8 2 (0.46%) Qlik Sense
8 2 (0.46%) Spatial Data
9 1 (0.23%) Amazon RDS
9 1 (0.23%) Hadoop
9 1 (0.23%) Neo4j
9 1 (0.23%) Redis
9 1 (0.23%) SQL Server 2014
9 1 (0.23%) SQL Server Analysis Services
Development Applications
1 89 (20.46%) webpack
2 86 (19.77%) Git (software)
3 39 (8.97%) Jenkins
4 38 (8.74%) Jasmine
4 38 (8.74%) Karma Test Runner
5 36 (8.28%) Babel
6 33 (7.59%) gulp
7 30 (6.90%) Mocha
8 29 (6.67%) Protractor
9 25 (5.75%) Maven
10 21 (4.83%) Selenium
11 19 (4.37%) Cucumber
12 18 (4.14%) JIRA
13 14 (3.22%) JUnit
14 11 (2.53%) Grunt
15 10 (2.30%) Bitbucket
15 10 (2.30%) PostCSS
15 10 (2.30%) Visual Studio
16 9 (2.07%) Gradle
17 8 (1.84%) Visual Studio Team System
General
1 70 (16.09%) Finance
2 26 (5.98%) Banking
3 24 (5.52%) Retail
4 19 (4.37%) Marketing
5 16 (3.68%) Public Sector
6 10 (2.30%) Games
7 8 (1.84%) Front Office
7 8 (1.84%) Investment Banking
8 4 (0.92%) Law
8 4 (0.92%) Publishing
9 3 (0.69%) Aerospace
9 3 (0.69%) Music Industry
9 3 (0.69%) Pharmaceutical
9 3 (0.69%) Retail Banking
10 2 (0.46%) Manufacturing
10 2 (0.46%) Multimedia
10 2 (0.46%) Telecoms
11 1 (0.23%) Advertising
11 1 (0.23%) Legal
11 1 (0.23%) Private Banking
Job Titles
1 388 (89.20%) Developer
2 172 (39.54%) React Developer
3 126 (28.97%) Front End Developer (Client-Side Developer)
4 103 (23.68%) JavaScript Developer
5 84 (19.31%) Full Stack Developer
6 61 (14.02%) Java Developer
7 45 (10.34%) Angular Developer
8 40 (9.20%) Node.js Developer
8 40 (9.20%) Senior Developer
9 37 (8.51%) UI Developer
10 33 (7.59%) Java Developer - Fintech
11 18 (4.14%) Senior React Developer
12 16 (3.68%) Web Developer
13 15 (3.45%) Senior JavaScript Developer
14 11 (2.53%) JavaScript Engineer
15 10 (2.30%) AWS Developer
16 9 (2.07%) HTML Developer
16 9 (2.07%) Lead Developer
17 8 (1.84%) C# Developer
17 8 (1.84%) Python Developer
Libraries, Frameworks & Software Standards
1 255 (58.62%) React
2 246 (56.55%) CSS
3 227 (52.18%) HTML
4 202 (46.44%) Redux
5 176 (40.46%) Node.js
6 160 (36.78%) AngularJS
7 140 (32.18%) HTML5
8 117 (26.90%) Sass
9 110 (25.29%) CSS3
10 72 (16.55%) Spring
11 63 (14.48%) Jest
12 49 (11.26%) RESTful
13 47 (10.80%) GraphQL
14 45 (10.34%) REST
15 41 (9.43%) Express
15 41 (9.43%) Vue.js
16 33 (7.59%) Spring Boot
17 32 (7.36%) Angular 2
18 29 (6.67%) RxJS
19 28 (6.44%) NgRx
Miscellaneous
1 80 (18.39%) Greenfield Project
2 66 (15.17%) User Experience
3 15 (3.45%) Mobile App
4 12 (2.76%) Analytical Skills
4 12 (2.76%) Data Structures
5 11 (2.53%) Algorithms
6 10 (2.30%) Enterprise Software
7 6 (1.38%) NHS
8 5 (1.15%) Cloud Native
8 5 (1.15%) Linux Command Line
9 4 (0.92%) Self-Motivation
10 3 (0.69%) Blog
10 3 (0.69%) Derivative
10 3 (0.69%) Equity Derivative
10 3 (0.69%) Management Information System
10 3 (0.69%) Mobile Banking
11 2 (0.46%) Arduino
11 2 (0.46%) Credit Risk
11 2 (0.46%) Smartphone
11 2 (0.46%) Social Media
Operating Systems
1 15 (3.45%) Linux
2 4 (0.92%) Windows
3 2 (0.46%) Android
3 2 (0.46%) Apple iOS
3 2 (0.46%) Unix
4 1 (0.23%) CentOS
4 1 (0.23%) Red Hat Enterprise Linux
Processes & Methodologies
1 221 (50.80%) Agile Software Development
2 168 (38.62%) Front End Development
2 168 (38.62%) TDD
3 85 (19.54%) OO
4 78 (17.93%) Open Source
5 60 (13.79%) Fintech
6 57 (13.10%) BDD
6 57 (13.10%) Scrum
7 47 (10.80%) Microservices
8 46 (10.57%) Continuous Delivery
9 43 (9.89%) Test Automation
10 34 (7.82%) Unit Testing
11 33 (7.59%) Open Source Development
12 32 (7.36%) OOP
13 29 (6.67%) Mentoring
13 29 (6.67%) Pair Programming
13 29 (6.67%) Web Development
14 27 (6.21%) Analytics
15 26 (5.98%) Continuous Integration
15 26 (5.98%) Software Engineering
Programming Languages
1 401 (92.18%) JavaScript
2 137 (31.49%) TypeScript
3 110 (25.29%) Java
4 62 (14.25%) Java 8
5 49 (11.26%) SQL
6 45 (10.34%) ES7
7 37 (8.51%) Python
8 19 (4.37%) C#
9 16 (3.68%) Ruby
10 11 (2.53%) Go
11 8 (1.84%) Scala
12 6 (1.38%) ActionScript
12 6 (1.38%) BrightScript
13 5 (1.15%) PHP
14 4 (0.92%) ANSI SQL
14 4 (0.92%) Java 9
15 3 (0.69%) JSX
15 3 (0.69%) Shell Script
16 2 (0.46%) C++
17 1 (0.23%) T-SQL
Qualifications
1 7 (1.61%) Degree
2 5 (1.15%) Security Cleared
3 3 (0.69%) SC Cleared
4 2 (0.46%) Computer Science Degree
Quality Assurance & Compliance
1 9 (2.07%) QA
System Software
1 71 (16.32%) Docker
Systems Management
1 32 (7.36%) Kubernetes
2 21 (4.83%) Terraform
3 12 (2.76%) Ansible
4 5 (1.15%) Hadoop YARN
5 4 (0.92%) Kibana
5 4 (0.92%) logstash
6 3 (0.69%) Docker Swarm
7 2 (0.46%) Opscode Chef
7 2 (0.46%) Puppet
8 1 (0.23%) Matomo
8 1 (0.23%) Packer
Vendors
1 15 (3.45%) Google
2 12 (2.76%) Microsoft
3 8 (1.84%) Adobe
4 7 (1.61%) Optimizely
5 6 (1.38%) Roku
6 5 (1.15%) Atlassian
7 4 (0.92%) MuleSoft
7 4 (0.92%) Oracle
8 3 (0.69%) ESRI
9 2 (0.46%) hybris
9 2 (0.46%) IBM
9 2 (0.46%) Sitecore
10 1 (0.23%) Hotjar