Period
to 18 December 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 18 December 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
18 Dec 2018
Same period 2017 Same period 2016
Rank 167 198 322
Rank change year-on-year +31 +124 +216
Contract jobs citing ES6 806 659 324
As % of all contract IT jobs advertised in London 1.72% 1.39% 0.73%
As % of the Programming Languages category 3.41% 2.86% 1.63%
Number of daily rates quoted 625 542 261
London median daily rate £525 £513 £475
Median daily rate % change year-on-year +2.44% +7.89% -5.00%
10th Percentile £375 £400 £375
90th Percentile £675 £638 £625
England median daily rate £500 £496 £475
% change year-on-year +0.76% +4.47% -2.56%
Number of hourly rates quoted 1 0 1
London median hourly rate £35.00 - £85.00
England median hourly rate £35.00 - £85.00

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 23,605 23,019 19,817
As % of all contract IT jobs advertised in London 50.48% 48.42% 44.88%
Number of daily rates quoted 17,991 17,569 14,767
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £363 £350 £313
90th Percentile £675 £675 £636
England median daily rate £475 £468 £425
% change year-on-year +1.60% +10.00% +3.03%
Number of hourly rates quoted 121 145 118
London median hourly rate £36.00 £30.00 £34.00
Median hourly rate % change year-on-year +20.00% -11.76% +36.00%
10th Percentile £18.70 £17.97 £16.09
90th Percentile £55.46 £54.00 £56.87
England median hourly rate £42.00 £40.00 £39.50
% change year-on-year +5.00% +1.27% +5.33%

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 December 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 18 December 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 -3 152 £550 +4.76% 63
West London +2 35 £458 -12.86% 34
East London -39 21 £500 +11.11% 17
South London - 9 £429 - 1
North London - 1 £400 -
ES6
England

For the 6 months to 18 December 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.

1 761 (94.42%) JavaScript
2 530 (65.76%) CSS
3 492 (61.04%) HTML
4 412 (51.12%) Agile Software Development
5 409 (50.74%) Node.js
6 395 (49.01%) React
7 303 (37.59%) TDD
8 289 (35.86%) AngularJS
9 281 (34.86%) Front End Development
10 262 (32.51%) Redux
11 257 (31.89%) HTML5
12 249 (30.89%) Git (software)
13 228 (28.29%) Sass
14 221 (27.42%) TypeScript
15 202 (25.06%) CSS3
16 194 (24.07%) webpack
17 189 (23.45%) Docker
17 189 (23.45%) Java
18 187 (23.20%) Amazon AWS
19 182 (22.58%) BDD
20 161 (19.98%) User Experience
21 158 (19.60%) REST
22 150 (18.61%) Express
23 137 (17.00%) Finance
24 129 (16.00%) OO
25 126 (15.63%) Unit Testing
25 126 (15.63%) Mocha
26 124 (15.38%) Jest
27 117 (14.52%) gulp
28 114 (14.14%) Test Automation

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 54 (6.70%) Elasticsearch
2 28 (3.47%) CMS
3 27 (3.35%) Gunicorn
4 19 (2.36%) Apache Spark
5 18 (2.23%) Confluence
6 9 (1.12%) Umbraco
7 8 (0.99%) CoreMedia CMS
7 8 (0.99%) SharePoint
8 7 (0.87%) Sitecore CMS
9 5 (0.62%) Adobe Experience Manager
10 4 (0.50%) Cloud Foundry
10 4 (0.50%) WordPress
11 3 (0.37%) EPiServer
12 2 (0.25%) Apache
12 2 (0.25%) Ethereum
13 1 (0.12%) Apache Solr
13 1 (0.12%) Marvel
13 1 (0.12%) Mule
13 1 (0.12%) SharePoint 2013
13 1 (0.12%) Tomcat
Applications
1 14 (1.74%) Photoshop
2 6 (0.74%) Fireworks
3 5 (0.62%) Chatbot
4 4 (0.50%) Adobe Illustrator
4 4 (0.50%) InVision
5 2 (0.25%) Adobe Creative Suite
5 2 (0.25%) GIMP
6 1 (0.12%) SketchUp
Business Applications
1 3 (0.37%) SAP Oil and Gas
2 2 (0.25%) SDL Web 8
2 2 (0.25%) Shopify
Cloud Services
1 187 (23.20%) Amazon AWS
2 98 (12.16%) Serverless
3 80 (9.93%) Microsoft Azure
4 72 (8.93%) AWS Lambda
5 65 (8.06%) npm
6 57 (7.07%) GitHub
7 55 (6.82%) Heroku
8 36 (4.47%) Google Cloud Platform
9 13 (1.61%) Azure Functions
10 12 (1.49%) Yarn
11 11 (1.36%) Amazon EC2
11 11 (1.36%) Amazon S3
12 10 (1.24%) Amazon Kinesis
12 10 (1.24%) CloudFront
13 9 (1.12%) Amazon CloudWatch
13 9 (1.12%) Amazon ELB
13 9 (1.12%) Amazon SQS
13 9 (1.12%) AWS CloudTrail
13 9 (1.12%) Virtual Private Cloud
14 5 (0.62%) SaaS
Communications & Networking
1 43 (5.33%) HTTP
2 29 (3.60%) SSL
3 28 (3.47%) DNS
3 28 (3.47%) FTP
3 28 (3.47%) TCP/IP
4 14 (1.74%) Internet
5 2 (0.25%) Kerberos
6 1 (0.12%) HbbTV
Database & Business Intelligence
1 91 (11.29%) PostgreSQL
2 81 (10.05%) MySQL
3 76 (9.43%) MongoDB
4 34 (4.22%) Relational Database
5 33 (4.09%) Redis
6 29 (3.60%) Couchbase
7 26 (3.23%) SQL Server
8 24 (2.98%) Big Data
9 18 (2.23%) Apache Cassandra
10 17 (2.11%) Hadoop
11 15 (1.86%) NoSQL
12 13 (1.61%) Amazon RDS
13 7 (0.87%) Amazon DynamoDB
13 7 (0.87%) Blockchain
14 3 (0.37%) Cosmos DB
14 3 (0.37%) Hazelcast
14 3 (0.37%) SAP HANA
14 3 (0.37%) SQL Server 2014
15 2 (0.25%) CouchDB
15 2 (0.25%) InterSystems Cache
Development Applications
1 249 (30.89%) Git (software)
2 194 (24.07%) webpack
3 126 (15.63%) Mocha
4 117 (14.52%) gulp
5 101 (12.53%) Jenkins
6 87 (10.79%) Selenium
7 84 (10.42%) Jasmine
8 72 (8.93%) Babel
9 64 (7.94%) Gatling
10 53 (6.58%) JIRA
11 50 (6.20%) Karma Test Runner
12 49 (6.08%) Grunt
13 48 (5.96%) Cucumber
14 37 (4.59%) Maven
15 35 (4.34%) PostCSS
16 34 (4.22%) GitLab
17 30 (3.72%) Protractor
18 27 (3.35%) Gradle
18 27 (3.35%) Robot Framework
19 22 (2.73%) Sinon.JS
General
1 137 (17.00%) Finance
2 69 (8.56%) Retail
3 67 (8.31%) Banking
4 19 (2.36%) Front Office
4 19 (2.36%) Publishing
5 14 (1.74%) Law
6 8 (0.99%) Investment Banking
7 6 (0.74%) Advertising
7 6 (0.74%) Pharmaceutical
8 5 (0.62%) Automotive
8 5 (0.62%) Games
8 5 (0.62%) Marketing
9 4 (0.50%) Electronics
10 2 (0.25%) Digital Economy
10 2 (0.25%) Legal
10 2 (0.25%) Manufacturing
10 2 (0.25%) Telecoms
11 1 (0.12%) Avionics
11 1 (0.12%) Billing
11 1 (0.12%) Financial Institution
Job Titles
1 685 (84.99%) Developer
2 260 (32.26%) React Developer
3 227 (28.16%) Front End Developer (Client-Side Developer)
4 181 (22.46%) JavaScript Developer
5 121 (15.01%) Senior Developer
6 91 (11.29%) Full Stack Developer
7 82 (10.17%) Angular Developer
8 75 (9.31%) Node.js Developer
9 65 (8.06%) Java Developer
10 46 (5.71%) Software Engineer
11 45 (5.58%) Senior React Developer
12 35 (4.34%) Senior Front-End Developer
13 34 (4.22%) Senior JavaScript Developer
14 33 (4.09%) UI Developer
15 31 (3.85%) HTML Developer
16 27 (3.35%) AWS Developer
17 26 (3.23%) HTML CSS Developer
18 25 (3.10%) JavaScript Engineer
18 25 (3.10%) Lead Developer
19 23 (2.85%) Web Developer
Libraries, Frameworks & Software Standards
1 530 (65.76%) CSS
2 492 (61.04%) HTML
3 409 (50.74%) Node.js
4 395 (49.01%) React
5 289 (35.86%) AngularJS
6 262 (32.51%) Redux
7 257 (31.89%) HTML5
8 228 (28.29%) Sass
9 202 (25.06%) CSS3
10 158 (19.60%) REST
11 150 (18.61%) Express
12 124 (15.38%) Jest
13 111 (13.77%) Enzyme
14 105 (13.03%) Chai
15 82 (10.17%) Spring
16 77 (9.55%) RESTful
17 75 (9.31%) Spring Boot
18 70 (8.68%) React Native
19 62 (7.69%) Vue.js
20 61 (7.57%) jQuery
Miscellaneous
1 161 (19.98%) User Experience
2 94 (11.66%) Greenfield Project
3 44 (5.46%) Data Structures
4 43 (5.33%) Analytical Skills
4 43 (5.33%) Fintech
5 36 (4.47%) Algorithms
6 33 (4.09%) Mobile App
7 10 (1.24%) Virtual Team
8 8 (0.99%) Cloud Native
8 8 (0.99%) Digital Media
8 8 (0.99%) Enterprise Software
9 7 (0.87%) Video\Live Streaming
10 6 (0.74%) Internet of Things
10 6 (0.74%) NHS
11 5 (0.62%) Foreign Exchange (FX)
11 5 (0.62%) W3C
12 4 (0.50%) Equities
12 4 (0.50%) Hedge funds
13 3 (0.37%) Derivative
13 3 (0.37%) Reference Data
Operating Systems
1 40 (4.96%) Linux
2 16 (1.99%) Apple iOS
3 13 (1.61%) Android
4 7 (0.87%) Unix
5 1 (0.12%) Windows
Processes & Methodologies
1 412 (51.12%) Agile Software Development
2 303 (37.59%) TDD
3 281 (34.86%) Front End Development
4 182 (22.58%) BDD
5 129 (16.00%) OO
6 126 (15.63%) Unit Testing
7 114 (14.14%) Test Automation
8 113 (14.02%) Microservices
9 111 (13.77%) Software Engineering
10 91 (11.29%) Scrum
11 86 (10.67%) DevOps
12 78 (9.68%) Web Development
13 70 (8.68%) E-Commerce
13 70 (8.68%) Open Source
13 70 (8.68%) Responsive Web Design
14 63 (7.82%) Continuous Delivery
15 59 (7.32%) Continuous Integration
16 55 (6.82%) Pair Programming
17 53 (6.58%) Problem-Solving
18 43 (5.33%) API Design
Programming Languages
1 761 (94.42%) JavaScript
2 221 (27.42%) TypeScript
3 189 (23.45%) Java
4 103 (12.78%) Python
5 78 (9.68%) Java 8
6 74 (9.18%) ES7
7 51 (6.33%) Go
8 27 (3.35%) C#
9 18 (2.23%) SQL
10 15 (1.86%) Scala
11 9 (1.12%) JSX
11 9 (1.12%) PHP
11 9 (1.12%) Ruby
12 6 (0.74%) Kotlin
13 3 (0.37%) Apple Swift
13 3 (0.37%) Objective-C
13 3 (0.37%) Perl
14 2 (0.25%) C
14 2 (0.25%) C++
14 2 (0.25%) Groovy
Qualifications
1 16 (1.99%) Degree
2 8 (0.99%) BPSS Clearance
3 7 (0.87%) Security Cleared
4 5 (0.62%) SC Cleared
5 3 (0.37%) Computer Science Degree
6 2 (0.25%) Numerate Degree
7 1 (0.12%) BC Cleared
Quality Assurance & Compliance
1 32 (3.97%) QA
2 11 (1.36%) WCAG
3 3 (0.37%) ISO/IEC 27001
4 1 (0.12%) Data Quality
4 1 (0.12%) Disclosure Scotland
4 1 (0.12%) PMO
4 1 (0.12%) WAI
System Software
1 189 (23.45%) Docker
2 3 (0.37%) Apache ZooKeeper
3 2 (0.25%) Varnish
4 1 (0.12%) etcd
4 1 (0.12%) Virtual Machines
Systems Management
1 67 (8.31%) Ansible
2 43 (5.33%) Terraform
3 37 (4.59%) Kubernetes
4 26 (3.23%) Docker Swarm
5 6 (0.74%) Marathon
5 6 (0.74%) Mesos
6 3 (0.37%) Puppet
7 1 (0.12%) Consul
7 1 (0.12%) Grafana
7 1 (0.12%) Opscode Chef
Vendors
1 46 (5.71%) Google
2 17 (2.11%) Adobe
3 16 (1.99%) Twitter
4 15 (1.86%) Splunk
5 7 (0.87%) Sitecore
6 6 (0.74%) Cypress Semiconductor
6 6 (0.74%) Salesforce.com
7 4 (0.50%) Microsoft
7 4 (0.50%) SAP
8 2 (0.25%) Atlassian
8 2 (0.25%) Oracle
8 2 (0.25%) PubNub
9 1 (0.12%) AppDynamics
9 1 (0.12%) Cognizant
9 1 (0.12%) hybris
9 1 (0.12%) Sybase
9 1 (0.12%) Zend