Period
to 9 April 2020

The following table provides summary statistics for contract job vacancies with a requirement for ES8 skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited ES8 over the 6 months to 9 April 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 2017 (JavaScript ES2017, ES8)
UK
6 months to
9 Apr 2020
Same period 2019 Same period 2018
Rank 677 865 873
Rank change year-on-year +188 +8 -46
Contract jobs citing ES8 14 17 20
As % of all contract jobs advertised in the UK 0.023% 0.018% 0.020%
As % of the Programming Languages category 0.057% 0.041% 0.046%
Number of daily rates quoted 6 9 15
Median daily rate £383 £450 £450
Median daily rate % change year-on-year -15.00% - +22.03%
10th Percentile £327 £312 £383
90th Percentile £533 £575 £525
UK excluding London median daily rate £414 £425 -
% change year-on-year -2.65% - -
Number of hourly rates quoted 6 0 0
Median hourly rate £72.50 - -
UK excluding London median hourly rate - - -

ES8 is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies with a requirement for coding skills.

All Programming Languages
UK
Contract vacancies with a requirement for coding skills 24,544 41,755 43,269
As % of all contract IT jobs advertised in the UK 40.52% 43.13% 42.87%
Number of daily rates quoted 16,557 29,136 30,316
Median daily rate £480 £475 £463
Median daily rate % change year-on-year +1.05% +2.70% +8.82%
10th Percentile £325 £325 £313
90th Percentile £650 £650 £638
UK excluding London median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% +6.38%
Number of hourly rates quoted 564 694 780
Median hourly rate £40.00 £42.50 £40.00
Median hourly rate % change year-on-year -5.88% +6.25% -
10th Percentile £17.83 £17.55 £16.29
90th Percentile £55.00 £53.75 £51.35
Median hourly rate £39.77 £42.63 £40.00
% change year-on-year -6.70% +6.56% -

ES8
Job Vacancy Trend

Job postings citing ES8 as a proportion of all IT jobs advertised.

Job vacancy trend for ES8 in the UK

ES8
Contractor Daily Rate Trend

3-month moving average daily rate quoted in jobs citing ES8.

Daily rate trend for ES8 in the UK

ES8
Daily Rate Histogram

Daily rate distribution for jobs citing ES8 over the 6 months to 9 April 2020.

Daily rate histogram for ES8 in the UK

ES8
Top 6 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing ES8 within the UK over the 6 months to 9 April 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
England +189 14 £383 -15.00% 6
UK excluding London +143 8 £414 -2.65% 3
North of England +71 8 £414 -2.65% 3
North West +48 8 £414 +27.31% 3
London +152 6 £361 -37.17% 3
Work from Home - 3 - - 1

For the 6 months to 9 April 2020, IT contractor jobs citing ES8 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 with a requirement for ES8.

1 14 (100.00%) JavaScript
2 11 (78.57%) Git (software)
2 11 (78.57%) ES6
2 11 (78.57%) ES7
3 8 (57.14%) Microservices
3 8 (57.14%) GCP
3 8 (57.14%) React Native
3 8 (57.14%) TDD
4 7 (50.00%) Pair Programming
4 7 (50.00%) Spring
4 7 (50.00%) SOA
4 7 (50.00%) MySQL
4 7 (50.00%) HTML
4 7 (50.00%) Java
4 7 (50.00%) CSS
4 7 (50.00%) OO
4 7 (50.00%) RESTful
4 7 (50.00%) Continuous Integration
4 7 (50.00%) HTML5
4 7 (50.00%) GitHub
4 7 (50.00%) Mobile App
4 7 (50.00%) Relational Database
4 7 (50.00%) Software Delivery
4 7 (50.00%) Spring Boot
4 7 (50.00%) GitLab
5 6 (42.86%) Mentoring
5 6 (42.86%) Coaching
5 6 (42.86%) Node.js
5 6 (42.86%) Azure
5 6 (42.86%) OOP

ES8
Co-occurring IT Skills 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 (21.43%) Cloud Foundry
2 1 (7.14%) Confluence
Cloud Services
1 8 (57.14%) GCP
2 7 (50.00%) GitHub
3 6 (42.86%) Azure
4 5 (35.71%) AWS
5 3 (21.43%) Azure Functions
5 3 (21.43%) Serverless
6 1 (7.14%) Firebase
Database & Business Intelligence
1 7 (50.00%) MySQL
1 7 (50.00%) Relational Database
2 4 (28.57%) Redis
3 3 (21.43%) Azure SQL Database
3 3 (21.43%) MongoDB
3 3 (21.43%) Neo4j
3 3 (21.43%) NoSQL
3 3 (21.43%) SQL Server
4 1 (7.14%) Amazon DynamoDB
4 1 (7.14%) PostgreSQL
Development Applications
1 11 (78.57%) Git (software)
2 7 (50.00%) GitLab
3 3 (21.43%) Mocha
3 3 (21.43%) Sinon.JS
3 3 (21.43%) Visual Studio Team System
4 1 (7.14%) Babel
4 1 (7.14%) Cucumber
4 1 (7.14%) Jenkins
4 1 (7.14%) JIRA
4 1 (7.14%) webpack
General
1 1 (7.14%) Finance
1 1 (7.14%) Retail
Job Titles
1 12 (85.71%) Developer
2 6 (42.86%) JavaScript Developer
3 5 (35.71%) Java Developer
3 5 (35.71%) Senior Developer
3 5 (35.71%) Senior Software Engineer
3 5 (35.71%) Software Engineer
4 4 (28.57%) Core Java Developer
4 4 (28.57%) Java Engineer
4 4 (28.57%) Java Software Engineer
4 4 (28.57%) Senior Java Developer
4 4 (28.57%) Senior Java Engineer
4 4 (28.57%) Senior Java Software Engineer
5 3 (21.43%) Developer/Software Engineer
5 3 (21.43%) Java Software Developer
5 3 (21.43%) Node.js Developer
5 3 (21.43%) Senior Java Software Developer
5 3 (21.43%) Senior Software Developer
5 3 (21.43%) UI Developer
6 2 (14.29%) Front End Developer (Client-Side Developer)
7 1 (7.14%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 8 (57.14%) React Native
2 7 (50.00%) CSS
2 7 (50.00%) HTML
2 7 (50.00%) HTML5
2 7 (50.00%) RESTful
2 7 (50.00%) Spring
2 7 (50.00%) Spring Boot
3 6 (42.86%) Node.js
4 3 (21.43%) Android SDK
4 3 (21.43%) Chai
4 3 (21.43%) React
4 3 (21.43%) Redux
4 3 (21.43%) REST
5 1 (7.14%) AngularJS
5 1 (7.14%) Enzyme
5 1 (7.14%) GraphQL
5 1 (7.14%) Jest
5 1 (7.14%) Kafka
5 1 (7.14%) WebdriverIO
Miscellaneous
1 7 (50.00%) Mobile App
2 3 (21.43%) Cloud Native
3 2 (14.29%) Graphic Design
4 1 (7.14%) Greenfield Project
Operating Systems
1 3 (21.43%) Android
Processes & Methodologies
1 8 (57.14%) Microservices
1 8 (57.14%) TDD
2 7 (50.00%) Continuous Integration
2 7 (50.00%) OO
2 7 (50.00%) Pair Programming
2 7 (50.00%) SOA
2 7 (50.00%) Software Delivery
3 6 (42.86%) Coaching
3 6 (42.86%) Mentoring
3 6 (42.86%) OOP
3 6 (42.86%) Software Engineering
4 4 (28.57%) Agile Software Development
4 4 (28.57%) Problem-Solving
5 3 (21.43%) DevOps
5 3 (21.43%) KYC
6 2 (14.29%) SEO
6 2 (14.29%) Web Development
7 1 (7.14%) Migration
7 1 (7.14%) Planning Poker
7 1 (7.14%) Scrum
Programming Languages
1 14 (100.00%) JavaScript
2 11 (78.57%) ES6
2 11 (78.57%) ES7
3 7 (50.00%) Java
4 1 (7.14%) Python
System Software
1 5 (35.71%) Docker
Systems Management
1 1 (7.14%) Kubernetes
1 1 (7.14%) Marathon
1 1 (7.14%) Mesos
1 1 (7.14%) Terraform
Vendors
1 6 (42.86%) Google
2 3 (21.43%) Microsoft