Period
to 18 April 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 18 April 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
18 Apr 2019
Same period 2018 Same period 2017
Rank 162 181 291
Rank change year-on-year +19 +110 +173
Contract jobs citing ES6 757 716 327
As % of all contract IT jobs advertised in London 1.79% 1.55% 0.81%
As % of the Programming Languages category 3.74% 3.21% 1.77%
Number of daily rates quoted 594 602 261
London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% -
10th Percentile £375 £401 £369
90th Percentile £675 £650 £650
England median daily rate £500 £500 £475
% change year-on-year - +5.26% +0.80%
Number of hourly rates quoted 2 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 20,252 22,326 18,464
As % of all contract IT jobs advertised in London 47.83% 48.39% 45.71%
Number of daily rates quoted 15,276 17,090 13,755
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +2.81%
10th Percentile £363 £355 £325
90th Percentile £675 £675 £650
England median daily rate £484 £475 £438
% change year-on-year +1.89% +8.57% +2.94%
Number of hourly rates quoted 126 210 119
London median hourly rate £35.50 £35.29 £44.00
Median hourly rate % change year-on-year +0.60% -19.80% +59.23%
10th Percentile £19.46 £17.73 £18.41
90th Percentile £53.75 £50.82 £56.30
England median hourly rate £42.50 £40.00 £41.00
% change year-on-year +6.25% -2.44% +5.81%

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 18 April 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 18 April 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 -10 179 £550 - 20
West London +6 35 £350 -36.36% 3
South London +22 14 £525 +31.25% 2
East London -25 7 £575 +26.03% 2
North London - 3 £431 -
ES6
England

For the 6 months to 18 April 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.

1 708 (93.53%) JavaScript
2 434 (57.33%) Agile Software Development
3 430 (56.80%) HTML
4 420 (55.48%) CSS
5 382 (50.46%) Node.js
6 371 (49.01%) React
7 285 (37.65%) AngularJS
8 265 (35.01%) TDD
9 259 (34.21%) HTML5
10 244 (32.23%) TypeScript
11 233 (30.78%) Front End Development
12 226 (29.85%) Redux
13 194 (25.63%) Git (software)
13 194 (25.63%) Sass
14 189 (24.97%) CSS3
15 178 (23.51%) Amazon AWS
16 173 (22.85%) BDD
17 163 (21.53%) webpack
17 163 (21.53%) Java
18 160 (21.14%) Docker
19 153 (20.21%) User Experience
20 144 (19.02%) Microservices
21 133 (17.57%) Finance
22 126 (16.64%) Express
23 120 (15.85%) gulp
24 114 (15.06%) Test Automation
25 113 (14.93%) DevOps
26 112 (14.80%) Scrum
27 108 (14.27%) Jasmine
28 103 (13.61%) Mocha

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 61 (8.06%) Elasticsearch
2 43 (5.68%) Confluence
3 24 (3.17%) CMS
4 19 (2.51%) Adobe Experience Manager
5 13 (1.72%) Apache
6 12 (1.59%) Magnolia
7 11 (1.45%) Gunicorn
8 8 (1.06%) Apache Spark
9 3 (0.40%) Sitecore CMS
10 2 (0.26%) Umbraco
11 1 (0.13%) Apache Solr
11 1 (0.13%) CoreMedia CMS
11 1 (0.13%) Drupal
11 1 (0.13%) EPiServer
11 1 (0.13%) Marvel
11 1 (0.13%) SharePoint
11 1 (0.13%) WordPress
Applications
1 13 (1.72%) Photoshop
2 10 (1.32%) Adobe Illustrator
3 3 (0.40%) Chatbot
4 1 (0.13%) GIMP
4 1 (0.13%) InVision
4 1 (0.13%) UXPin
Business Applications
1 2 (0.26%) SDL Web 8
2 1 (0.13%) Magento
2 1 (0.13%) R3 Corda
Cloud Services
1 178 (23.51%) Amazon AWS
2 93 (12.29%) Serverless
3 70 (9.25%) Microsoft Azure
4 68 (8.98%) AWS Lambda
4 68 (8.98%) npm
5 59 (7.79%) GitHub
6 38 (5.02%) Heroku
7 16 (2.11%) Amazon S3
7 16 (2.11%) Amazon SQS
8 15 (1.98%) Amazon EC2
8 15 (1.98%) Google Cloud Platform
8 15 (1.98%) PaaS
9 14 (1.85%) CloudFront
9 14 (1.85%) Virtual Private Cloud
10 13 (1.72%) Amazon CloudWatch
10 13 (1.72%) Amazon ELB
10 13 (1.72%) Amazon Kinesis
10 13 (1.72%) AWS CloudTrail
10 13 (1.72%) Yarn
11 12 (1.59%) Slack
Communications & Networking
1 37 (4.89%) HTTP
2 21 (2.77%) SSL
3 19 (2.51%) DNS
3 19 (2.51%) FTP
3 19 (2.51%) TCP/IP
4 2 (0.26%) Kerberos
5 1 (0.13%) HTTPS
5 1 (0.13%) Internet
5 1 (0.13%) RTMP
5 1 (0.13%) RTSP
Database & Business Intelligence
1 73 (9.64%) MySQL
2 66 (8.72%) MongoDB
3 60 (7.93%) PostgreSQL
4 56 (7.40%) Redis
5 33 (4.36%) SQL Server
6 28 (3.70%) NoSQL
7 24 (3.17%) Apache Cassandra
8 23 (3.04%) Big Data
9 18 (2.38%) Relational Database
10 17 (2.25%) Blockchain
11 16 (2.11%) Amazon RDS
12 8 (1.06%) Hadoop
13 6 (0.79%) Amazon DynamoDB
13 6 (0.79%) Couchbase
14 5 (0.66%) Neo4j
14 5 (0.66%) RDBMS
15 3 (0.40%) Amazon Aurora
15 3 (0.40%) Hazelcast
16 2 (0.26%) InterSystems Cache
16 2 (0.26%) Looker
Development Applications
1 194 (25.63%) Git (software)
2 163 (21.53%) webpack
3 120 (15.85%) gulp
4 108 (14.27%) Jasmine
5 103 (13.61%) Mocha
6 96 (12.68%) Jenkins
7 77 (10.17%) Karma Test Runner
8 66 (8.72%) Babel
9 65 (8.59%) Grunt
10 62 (8.19%) Cucumber
11 55 (7.27%) JIRA
12 52 (6.87%) Protractor
13 50 (6.61%) Selenium
14 42 (5.55%) Maven
15 36 (4.76%) GitLab
16 32 (4.23%) PostCSS
17 29 (3.83%) Gradle
18 28 (3.70%) Gatling
19 14 (1.85%) Bitbucket
20 13 (1.72%) Sinon.JS
General
1 133 (17.57%) Finance
2 44 (5.81%) Banking
3 39 (5.15%) Retail
4 26 (3.43%) Marketing
5 25 (3.30%) Front Office
6 19 (2.51%) Publishing
7 11 (1.45%) Law
8 8 (1.06%) Games
8 8 (1.06%) Pharmaceutical
9 6 (0.79%) Automotive
9 6 (0.79%) French Language
10 4 (0.53%) Investment Banking
11 3 (0.40%) Telecoms
12 2 (0.26%) Advertising
12 2 (0.26%) Electronics
12 2 (0.26%) Manufacturing
13 1 (0.13%) Digital Economy
13 1 (0.13%) Legal
13 1 (0.13%) Prime Brokerage
Job Titles
1 660 (87.19%) Developer
2 239 (31.57%) React Developer
3 198 (26.16%) JavaScript Developer
4 193 (25.50%) Front End Developer (Client-Side Developer)
5 118 (15.59%) Senior Developer
6 101 (13.34%) Full Stack Developer
7 78 (10.30%) Angular Developer
8 63 (8.32%) Java Developer
9 57 (7.53%) Node.js Developer
10 45 (5.94%) Senior React Developer
11 43 (5.68%) UI Developer
12 37 (4.89%) Senior JavaScript Developer
13 27 (3.57%) AWS Developer
14 26 (3.43%) Senior Front-End Developer
15 23 (3.04%) JavaScript Engineer
16 20 (2.64%) Lead Developer
17 19 (2.51%) HTML Developer
18 16 (2.11%) HTML CSS Developer
19 15 (1.98%) Digital Developer
20 14 (1.85%) Agile Developer
Libraries, Frameworks & Software Standards
1 430 (56.80%) HTML
2 420 (55.48%) CSS
3 382 (50.46%) Node.js
4 371 (49.01%) React
5 285 (37.65%) AngularJS
6 259 (34.21%) HTML5
7 226 (29.85%) Redux
8 194 (25.63%) Sass
9 189 (24.97%) CSS3
10 126 (16.64%) Express
11 100 (13.21%) REST
12 93 (12.29%) Jest
12 93 (12.29%) Spring
13 82 (10.83%) Twitter Bootstrap
14 79 (10.44%) Spring Boot
15 75 (9.91%) RESTful
16 65 (8.59%) GraphQL
17 62 (8.19%) React Native
18 59 (7.79%) Chai
19 58 (7.66%) Enzyme
Miscellaneous
1 153 (20.21%) User Experience
2 96 (12.68%) Greenfield Project
3 48 (6.34%) Mobile App
4 40 (5.28%) Fintech
5 34 (4.49%) Data Structures
6 29 (3.83%) Algorithms
6 29 (3.83%) Analytical Skills
7 14 (1.85%) Virtual Team
8 13 (1.72%) NHS
8 13 (1.72%) Social Media
9 8 (1.06%) Video\Live Streaming
9 8 (1.06%) W3C
10 5 (0.66%) Derivative
10 5 (0.66%) Enterprise Software
10 5 (0.66%) Public Cloud
11 4 (0.53%) Foreign Exchange (FX)
11 4 (0.53%) Video on Demand
12 3 (0.40%) Hedge funds
12 3 (0.40%) Reference Data
12 3 (0.40%) Smartphone
Operating Systems
1 47 (6.21%) Linux
2 13 (1.72%) Apple iOS
3 5 (0.66%) Android
4 4 (0.53%) Unix
5 3 (0.40%) Ubuntu
6 2 (0.26%) Windows
7 1 (0.13%) VMS
Processes & Methodologies
1 434 (57.33%) Agile Software Development
2 265 (35.01%) TDD
3 233 (30.78%) Front End Development
4 173 (22.85%) BDD
5 144 (19.02%) Microservices
6 114 (15.06%) Test Automation
7 113 (14.93%) DevOps
8 112 (14.80%) Scrum
9 96 (12.68%) OO
10 76 (10.04%) Open Source
11 69 (9.11%) Responsive Web Design
12 67 (8.85%) Software Engineering
13 60 (7.93%) Web Development
14 55 (7.27%) Pair Programming
14 55 (7.27%) Unit Testing
15 50 (6.61%) OOP
16 43 (5.68%) Problem-Solving
17 42 (5.55%) E-Commerce
18 41 (5.42%) Computer Science
19 40 (5.28%) SDLC
Programming Languages
1 708 (93.53%) JavaScript
2 244 (32.23%) TypeScript
3 163 (21.53%) Java
4 100 (13.21%) ES7
5 79 (10.44%) Java 8
6 61 (8.06%) Python
7 39 (5.15%) SQL
8 22 (2.91%) Go
9 18 (2.38%) C#
10 17 (2.25%) JSX
10 17 (2.25%) Scala
11 14 (1.85%) PHP
12 8 (1.06%) ES8
13 7 (0.92%) PHP 7
13 7 (0.92%) Ruby
14 6 (0.79%) Haskell
14 6 (0.79%) OCaml
15 3 (0.40%) C++
15 3 (0.40%) Perl
15 3 (0.40%) VBA
Qualifications
1 24 (3.17%) Degree
2 17 (2.25%) Security Cleared
3 10 (1.32%) SC Cleared
4 5 (0.66%) Computer Science Degree
5 4 (0.53%) Numerate Degree
6 3 (0.40%) BC Cleared
6 3 (0.40%) BPSS Clearance
6 3 (0.40%) CHECK Team Member
7 1 (0.13%) DV Cleared
7 1 (0.13%) Master's Degree
Quality Assurance & Compliance
1 35 (4.62%) QA
2 4 (0.53%) WCAG
3 3 (0.40%) Disclosure Scotland
4 1 (0.13%) PMO
4 1 (0.13%) WAI
System Software
1 160 (21.14%) Docker
2 3 (0.40%) Apache ZooKeeper
3 1 (0.13%) etcd
3 1 (0.13%) Virtual Machines
3 1 (0.13%) Virtual Servers
Systems Management
1 65 (8.59%) Kubernetes
2 39 (5.15%) Ansible
3 24 (3.17%) Terraform
4 23 (3.04%) Puppet
5 20 (2.64%) Docker Swarm
6 12 (1.59%) Grafana
7 10 (1.32%) Marathon
7 10 (1.32%) Mesos
8 2 (0.26%) Kibana
9 1 (0.13%) Consul
9 1 (0.13%) logstash
9 1 (0.13%) Pingdom
9 1 (0.13%) Rsyslog
9 1 (0.13%) Single Sign-On
9 1 (0.13%) TeamSite
Vendors
1 24 (3.17%) Google
2 23 (3.04%) Adobe
3 12 (1.59%) Twitter
4 9 (1.19%) Cypress Semiconductor
5 6 (0.79%) Optimizely
5 6 (0.79%) Oracle
6 5 (0.66%) New Relic
6 5 (0.66%) Splunk
7 4 (0.53%) ForgeRock
8 3 (0.40%) Sitecore
9 2 (0.26%) Facebook
9 2 (0.26%) hybris
9 2 (0.26%) Instagram
9 2 (0.26%) Microsoft
9 2 (0.26%) ServiceNow
10 1 (0.13%) Apple
10 1 (0.13%) Atlassian
10 1 (0.13%) Interwoven
10 1 (0.13%) MuleSoft
10 1 (0.13%) SAP