Period
to 25 July 2021

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 25 July 2021 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
25 Jul 2021
Same period 2020 Same period 2019
Rank 313 256 166
Rank change year-on-year -57 -90 -12
Contract jobs citing ES6 210 128 716
As % of all contract jobs advertised in London 0.71% 0.79% 1.77%
As % of the Programming Languages category 1.51% 1.57% 3.73%
Number of daily rates quoted 143 98 567
10th Percentile £363 £350 £400
25th Percentile £425 £450 £456
Median daily rate (50th Percentile) £525 £543 £525
Median % change year-on-year -3.23% +3.33% -
75th Percentile £600 £600 £600
90th Percentile £675 £713 £700
England median daily rate £475 £500 £500
% change year-on-year -5.00% - -
Number of hourly rates quoted 2 0 0
Median hourly rate £40.50 - -
England median hourly rate £40.50 - -

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 13,908 8,128 19,220
As % of all contract IT jobs advertised in London 46.99% 50.07% 47.47%
Number of daily rates quoted 10,375 6,043 14,643
10th Percentile £388 £363 £363
25th Percentile £463 £441 £425
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +2.44%
75th Percentile £650 £638 £613
90th Percentile £725 £725 £688
England median daily rate £514 £500 £480
% change year-on-year +2.80% +4.17% +1.05%
Number of hourly rates quoted 78 68 105
10th Percentile £21.50 £22.50 £16.50
25th Percentile £34.91 £31.69 £21.25
Median hourly rate £45.00 £46.46 £44.50
Median % change year-on-year -3.14% +4.40% +6.89%
75th Percentile £61.75 £58.13 £52.50
90th Percentile £68.51 £64.09 £56.50
England median hourly rate £42.50 £42.50 £45.00
% change year-on-year - -5.56% +8.43%

ES6
Job Vacancy Trend in London

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

Job vacancy trend for ES6 in London

ES6
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing ES6 in London.

Daily rate trend for ES6 in London

ES6
Daily Rate Histogram in London

Daily rate distribution for jobs citing ES6 in London over the 6 months to 25 July 2021.

Daily rate histogram for ES6 in London

ES6
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing ES6 in London.

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 25 July 2021. 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 -19 20 £538 - 31
West London +4 7 £600 +41.18% 16
South London +20 2 £431 -25.00%
ES6
England

For the 6 months to 25 July 2021, 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.

1 196 (93.33%) JavaScript
2 159 (75.71%) React
3 148 (70.48%) CSS
4 139 (66.19%) HTML
5 120 (57.14%) Node.js
6 103 (49.05%) TypeScript
7 101 (48.10%) Agile Software Development
8 75 (35.71%) AngularJS
9 74 (35.24%) Redux
10 71 (33.81%) Jest
11 66 (31.43%) User Experience
11 66 (31.43%) TDD
12 65 (30.95%) HTML5
13 62 (29.52%) Sass
14 61 (29.05%) Git (software)
15 59 (28.10%) Front End Development
15 59 (28.10%) AWS
16 55 (26.19%) SQL
16 55 (26.19%) GraphQL
17 54 (25.71%) webpack
18 51 (24.29%) Test Automation
19 50 (23.81%) Java
20 43 (20.48%) Jenkins
21 41 (19.52%) Accessibility
21 41 (19.52%) CSS3
22 40 (19.05%) Azure
23 39 (18.57%) RESTful
24 38 (18.10%) Finance
25 37 (17.62%) npm
25 37 (17.62%) Social Skills

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 9 (4.29%) Adobe Experience Manager
2 8 (3.81%) SharePoint
3 7 (3.33%) Confluence
4 5 (2.38%) Drupal
5 4 (1.90%) Apache
5 4 (1.90%) CMS
5 4 (1.90%) nginx
6 3 (1.43%) Elasticsearch
6 3 (1.43%) Headless CMS
6 3 (1.43%) Oracle SOA Suite
7 1 (0.48%) Camunda
7 1 (0.48%) IBM Domino
7 1 (0.48%) IIS
7 1 (0.48%) JBoss
7 1 (0.48%) Tomcat
7 1 (0.48%) WordPress
Applications
1 9 (4.29%) Photoshop
2 1 (0.48%) Figma
Business Applications
1 5 (2.38%) Adobe Campaign
2 4 (1.90%) Payment Gateway
3 3 (1.43%) Shopify
4 1 (0.48%) BusinessWorks
4 1 (0.48%) Magento
Cloud Services
1 59 (28.10%) AWS
2 40 (19.05%) Azure
3 37 (17.62%) npm
4 31 (14.76%) Serverless
5 18 (8.57%) AWS Lambda
6 16 (7.62%) Heroku
7 13 (6.19%) GCP
8 7 (3.33%) GitHub
9 5 (2.38%) Amazon EC2
9 5 (2.38%) Amazon S3
9 5 (2.38%) Azure Active Directory
10 3 (1.43%) Amazon SQS
10 3 (1.43%) Codefresh
10 3 (1.43%) Microsoft 365
10 3 (1.43%) Trello
11 2 (0.95%) Amazon ECS
11 2 (0.95%) Azure Cosmos DB
11 2 (0.95%) Azure Service Bus
11 2 (0.95%) Cloud Computing
11 2 (0.95%) SaaS
Communications & Networking
1 5 (2.38%) DMARC
1 5 (2.38%) DNS
1 5 (2.38%) HTTP
1 5 (2.38%) SMS
1 5 (2.38%) SMTP
2 4 (1.90%) Internet
3 1 (0.48%) WebEx
Database & Business Intelligence
1 33 (15.71%) NoSQL
2 23 (10.95%) MongoDB
3 21 (10.00%) SQL Server
4 19 (9.05%) PostgreSQL
5 17 (8.10%) Redis
6 9 (4.29%) MySQL
7 8 (3.81%) Amazon DynamoDB
8 5 (2.38%) CockroachDB
9 4 (1.90%) Relational Database
10 3 (1.43%) MariaDB
10 3 (1.43%) Oracle Database
11 2 (0.95%) Amazon RDS
11 2 (0.95%) Apache Hive
11 2 (0.95%) Big Data
11 2 (0.95%) Data Mart
11 2 (0.95%) Jackrabbit
12 1 (0.48%) Couchbase
12 1 (0.48%) RDBMS
Development Applications
1 61 (29.05%) Git (software)
2 54 (25.71%) webpack
3 43 (20.48%) Jenkins
4 34 (16.19%) Cypress.io
5 27 (12.86%) Jasmine
6 26 (12.38%) Cucumber
7 22 (10.48%) Mocha
8 21 (10.00%) TeamCity
9 20 (9.52%) JIRA
10 16 (7.62%) Grunt
10 16 (7.62%) gulp
11 15 (7.14%) NUnit
12 12 (5.71%) Karma Test Runner
13 11 (5.24%) Protractor
14 10 (4.76%) JSUnit
14 10 (4.76%) Selenium
15 9 (4.29%) CircleCI
15 9 (4.29%) GitLab
15 9 (4.29%) JUnit
15 9 (4.29%) Mockito
General
1 38 (18.10%) Finance
2 37 (17.62%) Social Skills
3 25 (11.90%) Analytical Skills
4 13 (6.19%) Front Office
5 11 (5.24%) Banking
6 9 (4.29%) Public Sector
6 9 (4.29%) Publishing
7 7 (3.33%) Retail
8 6 (2.86%) Games
9 5 (2.38%) Advertising
9 5 (2.38%) Marketing
10 4 (1.90%) Presentation Skills
11 1 (0.48%) Billing
11 1 (0.48%) Documentation Skills
11 1 (0.48%) Investment Banking
11 1 (0.48%) Manufacturing
11 1 (0.48%) Multimedia
11 1 (0.48%) Pharmaceutical
11 1 (0.48%) Telecoms
Job Titles
1 171 (81.43%) Developer
2 61 (29.05%) React Developer
3 39 (18.57%) Front End Developer (Client-Side Developer)
4 38 (18.10%) Senior Developer
5 29 (13.81%) JavaScript Developer
6 27 (12.86%) Full Stack Developer
7 23 (10.95%) Angular Developer
8 20 (9.52%) Java Developer
8 20 (9.52%) Node.js Developer
9 16 (7.62%) Senior React Developer
10 10 (4.76%) UI Developer
11 9 (4.29%) Senior JavaScript Developer
12 8 (3.81%) Digital Developer
12 8 (3.81%) Lead Developer
12 8 (3.81%) Senior Front-End Developer
13 7 (3.33%) Agile Developer
13 7 (3.33%) Agile Java Developer
13 7 (3.33%) Software Engineer
14 6 (2.86%) JavaScript Engineer
14 6 (2.86%) Senior Full Stack Developer
Libraries, Frameworks & Software Standards
1 159 (75.71%) React
2 148 (70.48%) CSS
3 139 (66.19%) HTML
4 120 (57.14%) Node.js
5 75 (35.71%) AngularJS
6 74 (35.24%) Redux
7 71 (33.81%) Jest
8 65 (30.95%) HTML5
9 62 (29.52%) Sass
10 55 (26.19%) GraphQL
11 41 (19.52%) CSS3
12 39 (18.57%) RESTful
13 32 (15.24%) REST
14 27 (12.86%) Express
14 27 (12.86%) Spring
15 24 (11.43%) Vue.js
16 22 (10.48%) .NET
16 22 (10.48%) Web Services
17 21 (10.00%) Enzyme
17 21 (10.00%) LESS
Miscellaneous
1 66 (31.43%) User Experience
2 18 (8.57%) Data Structures
3 17 (8.10%) Algorithms
4 11 (5.24%) Data Protection Act
5 7 (3.33%) Foreign Exchange (FX)
6 5 (2.38%) Blog
6 5 (2.38%) Greenfield Project
6 5 (2.38%) Marketing Technology
7 4 (1.90%) Digital Media
7 4 (1.90%) Fixed Income
7 4 (1.90%) Mobile App
8 3 (1.43%) Public Cloud
8 3 (1.43%) Social Media
9 2 (0.95%) Hedge funds
9 2 (0.95%) Vector Graphics
10 1 (0.48%) 3D Graphics
10 1 (0.48%) Contract for Difference
10 1 (0.48%) Derivative
10 1 (0.48%) Management Information System
10 1 (0.48%) Replication
Operating Systems
1 11 (5.24%) Android
2 10 (4.76%) Apple iOS
2 10 (4.76%) Unix
3 8 (3.81%) Linux
4 3 (1.43%) Mac OS
4 3 (1.43%) Windows
5 2 (0.95%) VMS
Processes & Methodologies
1 101 (48.10%) Agile Software Development
2 66 (31.43%) TDD
3 59 (28.10%) Front End Development
4 51 (24.29%) Test Automation
5 36 (17.14%) OO
6 35 (16.67%) DevOps
6 35 (16.67%) Software Engineering
7 30 (14.29%) Unit Testing
8 28 (13.33%) Open Source
9 26 (12.38%) Pair Programming
10 25 (11.90%) Continuous Integration
10 25 (11.90%) Microservices
11 23 (10.95%) Computer Science
11 23 (10.95%) SDLC
12 22 (10.48%) Problem-Solving
13 21 (10.00%) Web Development
14 19 (9.05%) Continuous Improvement
14 19 (9.05%) MVC
15 17 (8.10%) MVVM
15 17 (8.10%) OOD
Programming Languages
1 196 (93.33%) JavaScript
2 103 (49.05%) TypeScript
3 55 (26.19%) SQL
4 50 (23.81%) Java
5 22 (10.48%) C#
6 20 (9.52%) Python
7 16 (7.62%) Java 8
8 8 (3.81%) ES7
9 4 (1.90%) Ruby
10 3 (1.43%) Apple Swift
10 3 (1.43%) Kotlin
10 3 (1.43%) PL/SQL
11 2 (0.95%) Bash Shell
11 2 (0.95%) Objective-C
12 1 (0.48%) JSX
12 1 (0.48%) PHP
Qualifications
1 6 (2.86%) Degree
2 4 (1.90%) SC Cleared
2 4 (1.90%) Security Cleared
3 2 (0.95%) ISTQB
3 2 (0.95%) ISTQB Foundation Certification
4 1 (0.48%) Computer Science Degree
4 1 (0.48%) PhD
Quality Assurance & Compliance
1 41 (19.52%) Accessibility
2 6 (2.86%) QA
3 5 (2.38%) Data Quality
3 5 (2.38%) GDPR
4 1 (0.48%) WCAG
System Software
1 34 (16.19%) Docker
2 1 (0.48%) OpenAM
2 1 (0.48%) Virtual Machines
Systems Management
1 17 (8.10%) Ansible
2 13 (6.19%) Kubernetes
3 3 (1.43%) Opscode Chef
4 2 (0.95%) Terraform
5 1 (0.48%) Consul
5 1 (0.48%) Hadoop YARN
5 1 (0.48%) Mesos
5 1 (0.48%) Packer
Vendors
1 21 (10.00%) Oracle
2 16 (7.62%) Adobe
3 10 (4.76%) Google
4 7 (3.33%) Microsoft
5 4 (1.90%) Apple
5 4 (1.90%) WorldPay
6 3 (1.43%) Murex
7 2 (0.95%) hybris
7 2 (0.95%) MuleSoft
7 2 (0.95%) Xamarin
8 1 (0.48%) Atlassian
8 1 (0.48%) Monetate
8 1 (0.48%) Splunk
8 1 (0.48%) TIBCO
8 1 (0.48%) Xerox