Period
to 24 May 2020

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 24 May 2020 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
24 May 2020
Same period 2019 Same period 2018
Rank 243 154 168
Rank change year-on-year -89 +14 +103
Contract jobs citing ES6 188 758 766
As % of all contract jobs advertised in London 0.95% 1.87% 1.68%
As % of the Programming Languages category 1.94% 3.91% 3.45%
Number of daily rates quoted 140 598 650
Median daily rate £550 £525 £525
Median daily rate % change year-on-year +4.76% - +5.00%
10th Percentile £381 £375 £400
90th Percentile £700 £675 £663
England median daily rate £500 £500 £500
Number of hourly rates quoted 0 3 0
Median hourly rate - £35.00 -
England median hourly rate £35.00 £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 9,666 19,373 22,186
As % of all contract IT jobs advertised in London 48.63% 47.79% 48.64%
Number of daily rates quoted 6,973 14,571 16,926
Median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +4.17%
10th Percentile £368 £363 £356
90th Percentile £700 £675 £675
England median daily rate £500 £484 £475
% change year-on-year +3.31% +1.89% +6.74%
Number of hourly rates quoted 108 129 210
Median hourly rate £35.00 £36.00 £41.46
Median hourly rate % change year-on-year -2.78% -13.16% -2.46%
10th Percentile £23.20 £19.78 £17.94
90th Percentile £63.75 £55.70 £56.29
Median hourly rate £35.00 £43.00 £41.00
% change year-on-year -18.60% +4.88% -1.20%

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 24 May 2020.

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 24 May 2020. 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 30 £525 -4.55% 11
West London +29 9 £425 +88.89% 6
South London +20 9 £525 - 2
East London +45 3 £525 -8.70% 3
North London +13 1 £525 +21.74%
ES6
England

For the 6 months to 24 May 2020, 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.

1 155 (82.45%) JavaScript
2 106 (56.38%) React
3 99 (52.66%) CSS
4 94 (50.00%) Node.js
5 89 (47.34%) Redux
6 83 (44.15%) HTML
7 78 (41.49%) Agile Software Development
8 68 (36.17%) TypeScript
9 63 (33.51%) AngularJS
10 59 (31.38%) Jest
11 57 (30.32%) Front End Development
12 53 (28.19%) Sass
13 51 (27.13%) Git (software)
13 51 (27.13%) webpack
14 47 (25.00%) HTML5
15 46 (24.47%) TDD
16 40 (21.28%) User Experience
17 33 (17.55%) Docker
18 32 (17.02%) CSS3
18 32 (17.02%) Finance
19 29 (15.43%) GraphQL
20 27 (14.36%) Java
21 26 (13.83%) OO
21 26 (13.83%) Kubernetes
21 26 (13.83%) Problem-Solving
22 23 (12.23%) Continuous Integration
22 23 (12.23%) AWS
22 23 (12.23%) Jenkins
23 21 (11.17%) Enzyme
24 20 (10.64%) ES7

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 3 (1.60%) CMS
2 2 (1.06%) Confluence
3 1 (0.53%) Elasticsearch
3 1 (0.53%) EPiServer
3 1 (0.53%) Headless CMS
3 1 (0.53%) Kentico
3 1 (0.53%) Oracle Application Server
3 1 (0.53%) Sitecore CMS
3 1 (0.53%) Umbraco
3 1 (0.53%) WebSphere
Applications
1 1 (0.53%) InVision
1 1 (0.53%) Sketch
Business Applications
1 3 (1.60%) Shopify
2 1 (0.53%) Magento
Cloud Services
1 23 (12.23%) AWS
2 19 (10.11%) Azure
2 19 (10.11%) npm
3 16 (8.51%) GCP
4 13 (6.91%) Heroku
5 7 (3.72%) Yarn
6 5 (2.66%) GitHub
6 5 (2.66%) OpenShift
7 4 (2.13%) IaaS
7 4 (2.13%) PaaS
7 4 (2.13%) SaaS
7 4 (2.13%) Serverless
8 3 (1.60%) AWS Lambda
9 2 (1.06%) Firebase
10 1 (0.53%) Amazon ECS
10 1 (0.53%) Trello
Communications & Networking
1 6 (3.19%) HTTP
2 1 (0.53%) DNS
2 1 (0.53%) FTP
2 1 (0.53%) Network Security
2 1 (0.53%) SSL
2 1 (0.53%) TCP/IP
Database & Business Intelligence
1 14 (7.45%) NoSQL
2 6 (3.19%) MongoDB
3 4 (2.13%) SQL Server
4 3 (1.60%) PostgreSQL
4 3 (1.60%) Qlik Sense
5 2 (1.06%) Redis
6 1 (0.53%) Amazon DynamoDB
6 1 (0.53%) Azure SQL Database
6 1 (0.53%) Big Data
6 1 (0.53%) Blockchain
6 1 (0.53%) QlikView
6 1 (0.53%) SQL Server Analysis Services
Development Applications
1 51 (27.13%) Git (software)
1 51 (27.13%) webpack
2 23 (12.23%) Jenkins
3 16 (8.51%) Jasmine
3 16 (8.51%) PostCSS
4 15 (7.98%) Bitbucket
4 15 (7.98%) git-flow
5 9 (4.79%) Babel
5 9 (4.79%) JIRA
5 9 (4.79%) Protractor
6 8 (4.26%) Cucumber
6 8 (4.26%) gulp
6 8 (4.26%) TestCafe
7 7 (3.72%) Cypress.io
7 7 (3.72%) GitLab
7 7 (3.72%) Grunt
8 5 (2.66%) Karma Test Runner
9 4 (2.13%) Mocha
10 3 (1.60%) Mockito
10 3 (1.60%) Selenium
General
1 32 (17.02%) Finance
2 15 (7.98%) Banking
3 10 (5.32%) Investment Banking
4 8 (4.26%) Front Office
5 6 (3.19%) Public Sector
6 4 (2.13%) Retail
7 2 (1.06%) Aerospace
8 1 (0.53%) Advertising
8 1 (0.53%) Back Office
8 1 (0.53%) Games
8 1 (0.53%) Law
8 1 (0.53%) Marketing
8 1 (0.53%) Retail Banking
8 1 (0.53%) Telecoms
Job Titles
1 149 (79.26%) Developer
2 62 (32.98%) React Developer
3 43 (22.87%) Front End Developer (Client-Side Developer)
4 30 (15.96%) JavaScript Developer
5 22 (11.70%) Full Stack Developer
6 20 (10.64%) Angular Developer
7 18 (9.57%) Senior Developer
8 16 (8.51%) UI Developer
9 14 (7.45%) Java Developer
10 12 (6.38%) Node.js Developer
11 10 (5.32%) Java Developer - Fintech
12 8 (4.26%) Digital Developer
13 7 (3.72%) Senior Front-End Developer
14 6 (3.19%) HTML Developer
15 4 (2.13%) Architect
15 4 (2.13%) Front Office Developer
16 3 (1.60%) JavaScript Engineer
16 3 (1.60%) Python Developer
16 3 (1.60%) Senior UI Developer
16 3 (1.60%) Web Architect
Libraries, Frameworks & Software Standards
1 106 (56.38%) React
2 99 (52.66%) CSS
3 94 (50.00%) Node.js
4 89 (47.34%) Redux
5 83 (44.15%) HTML
6 63 (33.51%) AngularJS
7 59 (31.38%) Jest
8 53 (28.19%) Sass
9 47 (25.00%) HTML5
10 32 (17.02%) CSS3
11 29 (15.43%) GraphQL
12 21 (11.17%) Enzyme
13 20 (10.64%) jQuery
13 20 (10.64%) RxJS
14 18 (9.57%) REST
15 17 (9.04%) Express
15 17 (9.04%) RESTful
16 15 (7.98%) React Native
16 15 (7.98%) Spring
17 13 (6.91%) Vue.js
Miscellaneous
1 40 (21.28%) User Experience
2 20 (10.64%) Greenfield Project
3 18 (9.57%) Analytical Skills
4 11 (5.85%) Algorithms
4 11 (5.85%) Data Structures
5 4 (2.13%) Derivative
5 4 (2.13%) Equity Derivative
6 3 (1.60%) Cloud Native
6 3 (1.60%) Foreign Exchange (FX)
6 3 (1.60%) Mobile App
6 3 (1.60%) W3C
7 2 (1.06%) Credit Derivative
7 2 (1.06%) Graphic Design
7 2 (1.06%) Management Information System
7 2 (1.06%) Social Media
8 1 (0.53%) Augmented Reality
8 1 (0.53%) Blog
8 1 (0.53%) Fixed Income
8 1 (0.53%) FMCG
8 1 (0.53%) Video\Live Streaming
Operating Systems
1 2 (1.06%) Apple iOS
1 2 (1.06%) Linux
2 1 (0.53%) Android
2 1 (0.53%) Unix
Processes & Methodologies
1 78 (41.49%) Agile Software Development
2 57 (30.32%) Front End Development
3 46 (24.47%) TDD
4 26 (13.83%) OO
4 26 (13.83%) Problem-Solving
5 23 (12.23%) Continuous Integration
6 20 (10.64%) Microservices
6 20 (10.64%) Scrum
7 17 (9.04%) Open Source
8 16 (8.51%) Test Automation
9 15 (7.98%) Unit Testing
9 15 (7.98%) Visualisation
10 14 (7.45%) Cross-Browser Compatibility
10 14 (7.45%) Data Visualisation
10 14 (7.45%) DevOps
11 13 (6.91%) BDD
11 13 (6.91%) Computer Science
11 13 (6.91%) Continuous Delivery
11 13 (6.91%) Fintech
11 13 (6.91%) Web Development
Programming Languages
1 155 (82.45%) JavaScript
2 68 (36.17%) TypeScript
3 27 (14.36%) Java
4 20 (10.64%) ES7
5 19 (10.11%) SQL
6 14 (7.45%) Java 8
7 5 (2.66%) C#
7 5 (2.66%) Python
8 4 (2.13%) PHP
9 3 (1.60%) ES8
10 2 (1.06%) ActionScript
10 2 (1.06%) BrightScript
10 2 (1.06%) C
10 2 (1.06%) JSX
11 1 (0.53%) ANSI SQL
11 1 (0.53%) Elm
11 1 (0.53%) Kotlin
11 1 (0.53%) Scala
Qualifications
1 7 (3.72%) SC Cleared
1 7 (3.72%) Security Cleared
2 3 (1.60%) Degree
3 2 (1.06%) DV Cleared
4 1 (0.53%) BPSS Clearance
4 1 (0.53%) SANS
Quality Assurance & Compliance
1 3 (1.60%) QA
2 1 (0.53%) WCAG
System Software
1 33 (17.55%) Docker
Systems Management
1 26 (13.83%) Kubernetes
2 14 (7.45%) Terraform
3 6 (3.19%) Ansible
4 4 (2.13%) Opscode Chef
5 1 (0.53%) Docker Swarm
5 1 (0.53%) Marathon
5 1 (0.53%) Mesos
Vendors
1 6 (3.19%) Google
2 3 (1.60%) Atlassian
2 3 (1.60%) Microsoft
3 2 (1.06%) Roku
4 1 (0.53%) hybris
4 1 (0.53%) IBM
4 1 (0.53%) Oracle
4 1 (0.53%) SAP
4 1 (0.53%) Sitecore
4 1 (0.53%) Twitter