Period
to 15 December 2018

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Babel skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Babel over the 6 months to 15 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.

Babel JavaScript Compiler
England > London
6 months to
15 Dec 2018
Same period 2017 Same period 2016
Rank 524 475 559
Rank change year-on-year -49 +84 -
Contract jobs citing Babel 111 153 74
As % of all contract IT jobs advertised in London 0.24% 0.32% 0.17%
As % of the Development Applications category 1.03% 1.61% 0.93%
Number of daily rates quoted 98 126 56
London median daily rate £525 £513 £431
Median daily rate % change year-on-year +2.44% +18.84% -
10th Percentile £413 £406 £319
90th Percentile £688 £638 £556
England median daily rate £475 £500 £425
% change year-on-year -5.00% +17.65% -5.56%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate £28.00 £41.00 -
% change year-on-year -31.71% - -

Babel is in the Development Applications 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 development application skills.

All Development Application Skills
London
Contract vacancies with a requirement for development application skills 10,780 9,491 7,965
As % of all contract IT jobs advertised in London 23.19% 19.98% 17.88%
Number of daily rates quoted 8,047 7,227 5,727
London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £369 £350 £325
90th Percentile £663 £638 £613
England median daily rate £475 £463 £430
% change year-on-year +2.70% +7.56% +4.24%
Number of hourly rates quoted 21 21 13
London median hourly rate £35.00 £37.50 £32.50
Median hourly rate % change year-on-year -6.67% +15.38% +8.33%
10th Percentile £30.00 £20.75 £10.00
90th Percentile £53.75 £47.83 £54.64
England median hourly rate £42.50 £42.50 £41.00
% change year-on-year - +3.66% +2.50%

Babel
Job Vacancy Trend in London

Job postings citing Babel as a percentage of all IT jobs advertised in London.

Job vacancy trend for Babel in London

Babel
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Babel in London.

Contractor daily rate trend for Babel in London

Babel
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Babel in London over the 6 months to 15 December 2018.

Contractor daily rate histogram for Babel in London

Babel
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 Babel within the London region over the 6 months to 15 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 -45 20 £488 -7.14% 7
South London -20 5 £375 -2.60%
West London +3 2 £613 +36.11% 9
Babel
England

For the 6 months to 15 December 2018, IT contractor jobs citing Babel 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 Babel.

1 99 (89.19%) React
2 98 (88.29%) JavaScript
3 95 (85.59%) webpack
4 80 (72.07%) Node.js
5 73 (65.77%) CSS
6 72 (64.86%) ES6
7 64 (57.66%) Agile Software Development
8 61 (54.95%) Redux
9 58 (52.25%) TDD
10 56 (50.45%) Sass
11 51 (45.95%) BDD
12 47 (42.34%) TypeScript
13 46 (41.44%) AngularJS
14 43 (38.74%) HTML
15 41 (36.94%) Git (software)
16 40 (36.04%) Docker
17 38 (34.23%) Front End Development
18 34 (30.63%) Amazon AWS
19 30 (27.03%) Express
20 28 (25.23%) Mocha
21 27 (24.32%) Unit Testing
21 27 (24.32%) DevOps
22 26 (23.42%) HTML5
23 25 (22.52%) Fusebox
23 25 (22.52%) Pair Programming
24 24 (21.62%) gulp
25 23 (20.72%) User Experience
26 22 (19.82%) Google
26 22 (19.82%) CSS3
26 22 (19.82%) Jenkins

Babel
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 6 (5.41%) Tomcat
2 5 (4.50%) Confluence
3 1 (0.90%) Adobe Experience Manager
3 1 (0.90%) Cloud Foundry
3 1 (0.90%) CMS
3 1 (0.90%) Marvel
3 1 (0.90%) Mule
3 1 (0.90%) Sitecore CMS
Applications
1 4 (3.60%) Chatbot
2 2 (1.80%) Adobe Illustrator
2 2 (1.80%) InVision
Business Applications
1 1 (0.90%) SDL Web 8
Cloud Services
1 34 (30.63%) Amazon AWS
2 20 (18.02%) Google Cloud Platform
3 19 (17.12%) Microsoft Azure
3 19 (17.12%) npm
4 14 (12.61%) GitHub
4 14 (12.61%) Serverless
5 7 (6.31%) Yarn
6 5 (4.50%) AWS Lambda
7 4 (3.60%) Heroku
8 2 (1.80%) Amazon CloudWatch
8 2 (1.80%) AWS CloudFormation
8 2 (1.80%) PaaS
9 1 (0.90%) Google Tag Manager
9 1 (0.90%) IaaS
9 1 (0.90%) SaaS
9 1 (0.90%) Slack
Database & Business Intelligence
1 10 (9.01%) PostgreSQL
2 7 (6.31%) MongoDB
3 5 (4.50%) Redis
4 3 (2.70%) NoSQL
5 2 (1.80%) Amazon DynamoDB
6 1 (0.90%) Big Data
6 1 (0.90%) MySQL
Development Applications
1 95 (85.59%) webpack
2 41 (36.94%) Git (software)
3 28 (25.23%) Mocha
4 24 (21.62%) gulp
5 22 (19.82%) Jenkins
6 16 (14.41%) Cucumber
6 16 (14.41%) Jasmine
7 12 (10.81%) Atlassian Bamboo
8 10 (9.01%) WebDriver
9 8 (7.21%) Grunt
10 7 (6.31%) Gerrit
10 7 (6.31%) JIRA
10 7 (6.31%) Selenium
10 7 (6.31%) Sinon.JS
11 5 (4.50%) CircleCI
11 5 (4.50%) GitLab
11 5 (4.50%) Travis CI
12 3 (2.70%) Bower
12 3 (2.70%) JSUnit
12 3 (2.70%) Mercurial
General
1 19 (17.12%) Finance
2 14 (12.61%) Banking
3 6 (5.41%) Law
3 6 (5.41%) Retail
4 2 (1.80%) Digital Economy
5 1 (0.90%) Marketing
5 1 (0.90%) Music Industry
Job Titles
1 95 (85.59%) Developer
2 58 (52.25%) React Developer
3 34 (30.63%) JavaScript Developer
4 25 (22.52%) Node.js Developer
5 23 (20.72%) Front End Developer (Client-Side Developer)
6 20 (18.02%) Full Stack Developer
7 11 (9.91%) Senior Developer
8 10 (9.01%) AWS Developer
9 8 (7.21%) Digital Developer
9 8 (7.21%) Java Developer
9 8 (7.21%) JavaScript Engineer
10 7 (6.31%) Senior JavaScript Developer
11 6 (5.41%) Senior React Developer
12 5 (4.50%) Integration Developer
12 5 (4.50%) UI Developer
13 3 (2.70%) Applications Developer
13 3 (2.70%) Software Engineer
14 2 (1.80%) Development Engineer
14 2 (1.80%) HTML Developer
14 2 (1.80%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 99 (89.19%) React
2 80 (72.07%) Node.js
3 73 (65.77%) CSS
4 61 (54.95%) Redux
5 56 (50.45%) Sass
6 46 (41.44%) AngularJS
7 43 (38.74%) HTML
8 30 (27.03%) Express
9 26 (23.42%) HTML5
10 25 (22.52%) Fusebox
11 22 (19.82%) CSS3
11 22 (19.82%) Vue.js
12 21 (18.92%) RESTful
13 20 (18.02%) Web Services
14 19 (17.12%) REST
15 15 (13.51%) Enzyme
16 13 (11.71%) Chai
16 13 (11.71%) Jest
16 13 (11.71%) React Native
17 10 (9.01%) Nunjucks
Miscellaneous
1 23 (20.72%) User Experience
2 13 (11.71%) Greenfield Project
3 8 (7.21%) Mobile App
4 7 (6.31%) Cloud Native
5 4 (3.60%) Algorithms
5 4 (3.60%) IPTV
5 4 (3.60%) Over-the-Top Content
5 4 (3.60%) Video on Demand
6 1 (0.90%) Animation
6 1 (0.90%) Data Structures
6 1 (0.90%) Fintech
Operating Systems
1 2 (1.80%) Android
1 2 (1.80%) Apple iOS
2 1 (0.90%) Linux
Processes & Methodologies
1 64 (57.66%) Agile Software Development
2 58 (52.25%) TDD
3 51 (45.95%) BDD
4 38 (34.23%) Front End Development
5 27 (24.32%) DevOps
5 27 (24.32%) Unit Testing
6 25 (22.52%) Pair Programming
7 18 (16.22%) Test Automation
8 16 (14.41%) Customer-Centricity
8 16 (14.41%) Software Delivery
9 14 (12.61%) Microservices
10 13 (11.71%) Software Engineering
11 12 (10.81%) Continuous Delivery
11 12 (10.81%) Continuous Integration
12 11 (9.91%) OO
13 10 (9.01%) Open Source
13 10 (9.01%) Scrum
14 9 (8.11%) API Design
14 9 (8.11%) Kanban
14 9 (8.11%) Web Development
Programming Languages
1 98 (88.29%) JavaScript
2 72 (64.86%) ES6
3 47 (42.34%) TypeScript
4 20 (18.02%) ES7
5 18 (16.22%) Java
6 16 (14.41%) Python
7 10 (9.01%) Java 8
8 4 (3.60%) SQL
9 2 (1.80%) ES8
9 2 (1.80%) Kotlin
9 2 (1.80%) Objective-C
9 2 (1.80%) PHP
10 1 (0.90%) C#
Qualifications
1 6 (5.41%) SC Cleared
1 6 (5.41%) Security Cleared
Quality Assurance & Compliance
1 8 (7.21%) QA
2 1 (0.90%) WAI
2 1 (0.90%) WCAG
System Software
1 40 (36.04%) Docker
Systems Management
1 16 (14.41%) Ansible
2 12 (10.81%) Terraform
3 4 (3.60%) Marathon
3 4 (3.60%) Mesos
4 2 (1.80%) Kubernetes
5 1 (0.90%) Grafana
5 1 (0.90%) Puppet
Vendors
1 22 (19.82%) Google
2 1 (0.90%) Adobe
2 1 (0.90%) AppDynamics
2 1 (0.90%) hybris
2 1 (0.90%) Salesforce.com
2 1 (0.90%) Sitecore
2 1 (0.90%) Splunk