Period
to 21 April 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 21 April 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
21 Apr 2018
Same period 2017 Same period 2016
Rank 468 522 580
Rank change year-on-year +54 +58 -
Contract jobs citing Babel 170 65 16
As % of all contract IT jobs advertised in London 0.37% 0.16% 0.036%
As % of the Development Applications category 1.80% 0.91% 0.23%
Number of daily rates quoted 135 58 13
London median daily rate £513 £445 £513
Median daily rate % change year-on-year +15.17% -13.17% -
10th Percentile £403 £351 £438
90th Percentile £660 £575 £550
England median daily rate £475 £425 £450
% change year-on-year +11.76% -5.56% -
Number of hourly rates quoted 2 0 0
London median hourly rate £150.00 - -
England median hourly rate £150.00 - -

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 9,424 7,122 6,962
As % of all contract IT jobs advertised in London 20.40% 17.75% 15.71%
Number of daily rates quoted 7,128 5,245 5,146
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £360 £329 £313
90th Percentile £638 £625 £600
England median daily rate £475 £433 £425
% change year-on-year +9.83% +1.76% +6.25%
Number of hourly rates quoted 27 21 21
London median hourly rate £45.00 £40.00 £43.50
Median hourly rate % change year-on-year +12.50% -8.05% +58.93%
10th Percentile £30.60 £19.82 £29.64
90th Percentile £165.00 £57.50 £55.00
England median hourly rate £43.00 £41.00 £42.45
% change year-on-year +4.88% -3.42% +14.73%

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 21 April 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 21 April 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 +13 65 £500 +17.65% 9
South London - 10 £390 -
West London - 1 £420 - 2
Babel
England

For the 6 months to 21 April 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.

1 158 (92.94%) webpack
2 148 (87.06%) JavaScript
3 134 (78.82%) React
4 126 (74.12%) CSS
5 119 (70.00%) Node.js
6 112 (65.88%) Redux
7 110 (64.71%) ES6
8 108 (63.53%) Agile Software Development
9 93 (54.71%) TDD
10 77 (45.29%) HTML
11 63 (37.06%) Sass
12 62 (36.47%) BDD
13 56 (32.94%) Front End Development
14 54 (31.76%) TypeScript
15 52 (30.59%) Express
16 51 (30.00%) RESTful
17 50 (29.41%) CSS3
17 50 (29.41%) Docker
18 48 (28.24%) HTML5
19 46 (27.06%) Git (software)
20 45 (26.47%) AngularJS
21 41 (24.12%) Jenkins
22 39 (22.94%) Mocha
23 36 (21.18%) npm
24 34 (20.00%) DevOps
24 34 (20.00%) Finance
25 33 (19.41%) Amazon AWS
26 32 (18.82%) User Experience
27 30 (17.65%) Unit Testing
27 30 (17.65%) Serverless

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 2 (1.18%) Ethereum
2 1 (0.59%) Apache
2 1 (0.59%) Apache Spark
2 1 (0.59%) Cloud Foundry
2 1 (0.59%) Confluence
2 1 (0.59%) Elasticsearch
2 1 (0.59%) Jetty
2 1 (0.59%) Mule
2 1 (0.59%) nginx
2 1 (0.59%) Tomcat
Business Applications
1 2 (1.18%) Quorum
Cloud Services
1 36 (21.18%) npm
2 33 (19.41%) Amazon AWS
3 30 (17.65%) Serverless
4 18 (10.59%) Google Cloud Platform
4 18 (10.59%) Microsoft Azure
5 10 (5.88%) Amazon S3
6 9 (5.29%) Amazon SQS
7 8 (4.71%) Yarn
8 5 (2.94%) AWS Lambda
9 4 (2.35%) SaaS
10 2 (1.18%) CloudFront
10 2 (1.18%) Firebase
10 2 (1.18%) GitHub
10 2 (1.18%) IaaS
10 2 (1.18%) PaaS
11 1 (0.59%) Amazon Kinesis
11 1 (0.59%) AWS CloudFormation
11 1 (0.59%) AWS CloudTrail
11 1 (0.59%) Azure Active Directory
11 1 (0.59%) Virtual Private Cloud
Communications & Networking
1 7 (4.12%) HTTP
2 1 (0.59%) Bluetooth
Database & Business Intelligence
1 11 (6.47%) Amazon DynamoDB
1 11 (6.47%) PostgreSQL
2 9 (5.29%) MySQL
3 8 (4.71%) NoSQL
4 6 (3.53%) Blockchain
5 3 (1.76%) MongoDB
6 2 (1.18%) LevelDB
7 1 (0.59%) Big Data
7 1 (0.59%) Data Lake
7 1 (0.59%) Data Warehouse
7 1 (0.59%) Hadoop
7 1 (0.59%) HDInsight
7 1 (0.59%) Neo4j
7 1 (0.59%) RDBMS
7 1 (0.59%) Relational Database
Development Applications
1 158 (92.94%) webpack
2 46 (27.06%) Git (software)
3 41 (24.12%) Jenkins
4 39 (22.94%) Mocha
5 29 (17.06%) gulp
6 25 (14.71%) Jasmine
7 22 (12.94%) Grunt
8 18 (10.59%) Sinon.JS
9 16 (9.41%) Gerrit
10 15 (8.82%) Atlassian Bamboo
11 10 (5.88%) WebDriver
12 9 (5.29%) Subversion
13 7 (4.12%) Cucumber
13 7 (4.12%) Selenium
14 6 (3.53%) CircleCI
15 5 (2.94%) Bower
16 4 (2.35%) Visual Studio
16 4 (2.35%) Visual Studio Team System
17 3 (1.76%) JUnit
18 2 (1.18%) IntelliJ
General
1 34 (20.00%) Finance
2 19 (11.18%) Banking
3 12 (7.06%) Retail
4 7 (4.12%) Telecoms
5 4 (2.35%) Retail Banking
6 3 (1.76%) Law
7 2 (1.18%) Advertising
7 2 (1.18%) Financial Institution
7 2 (1.18%) Marketing
8 1 (0.59%) French Language
8 1 (0.59%) Games
8 1 (0.59%) International Banking
8 1 (0.59%) Legal
8 1 (0.59%) Publishing
Job Titles
1 149 (87.65%) Developer
2 84 (49.41%) React Developer
3 64 (37.65%) JavaScript Developer
4 43 (25.29%) Front End Developer (Client-Side Developer)
5 34 (20.00%) Node.js Developer
6 26 (15.29%) Senior Developer
7 18 (10.59%) Full Stack Developer
8 14 (8.24%) Senior React Developer
9 12 (7.06%) Senior JavaScript Developer
10 7 (4.12%) JavaScript Engineer
10 7 (4.12%) Senior Front-End Developer
10 7 (4.12%) Software Engineer
11 6 (3.53%) Lead Developer
12 5 (2.94%) Angular Developer
12 5 (2.94%) HTML CSS Developer
12 5 (2.94%) HTML Developer
12 5 (2.94%) UI Developer
13 4 (2.35%) Agile Developer
13 4 (2.35%) Test Automation Developer
13 4 (2.35%) UI/UX Developer
Libraries, Frameworks & Software Standards
1 134 (78.82%) React
2 126 (74.12%) CSS
3 119 (70.00%) Node.js
4 112 (65.88%) Redux
5 77 (45.29%) HTML
6 63 (37.06%) Sass
7 52 (30.59%) Express
8 51 (30.00%) RESTful
9 50 (29.41%) CSS3
10 48 (28.24%) HTML5
11 45 (26.47%) AngularJS
12 26 (15.29%) Web Services
13 25 (14.71%) Chai
14 21 (12.35%) Jest
14 21 (12.35%) Twitter Bootstrap
15 20 (11.76%) JMS
15 20 (11.76%) Vue (Vue.js)
16 19 (11.18%) DOM
16 19 (11.18%) Enzyme
16 19 (11.18%) Fusebox
Miscellaneous
1 32 (18.82%) User Experience
2 14 (8.24%) Greenfield Project
3 11 (6.47%) Computer Science
3 11 (6.47%) Mobile App
4 8 (4.71%) Video on Demand
5 7 (4.12%) Data Structures
6 5 (2.94%) Fintech
6 5 (2.94%) Virtual Team
7 3 (1.76%) Hedge funds
8 2 (1.18%) NHS
9 1 (0.59%) Animation
9 1 (0.59%) Blog
9 1 (0.59%) Linux Command Line
9 1 (0.59%) Mobile Payment
9 1 (0.59%) Social Media
9 1 (0.59%) Wiki
Operating Systems
1 10 (5.88%) Android
2 7 (4.12%) Linux
3 1 (0.59%) Apple iOS
Processes & Methodologies
1 108 (63.53%) Agile Software Development
2 93 (54.71%) TDD
3 62 (36.47%) BDD
4 56 (32.94%) Front End Development
5 34 (20.00%) DevOps
6 30 (17.65%) Unit Testing
7 26 (15.29%) Web Development
8 25 (14.71%) Test Automation
9 22 (12.94%) Wireframes
10 21 (12.35%) Continuous Delivery
10 21 (12.35%) Scrum
11 20 (11.76%) Pair Programming
12 19 (11.18%) API Design
12 19 (11.18%) API Development
12 19 (11.18%) SDLC
12 19 (11.18%) Software Engineering
13 18 (10.59%) Customer-Centricity
14 17 (10.00%) Software Delivery
15 16 (9.41%) Configuration Management
16 14 (8.24%) Responsive Web Design
Programming Languages
1 148 (87.06%) JavaScript
2 110 (64.71%) ES6
3 54 (31.76%) TypeScript
4 20 (11.76%) Java
5 14 (8.24%) ES7
6 10 (5.88%) ES8
7 9 (5.29%) JSX
7 9 (5.29%) SQL
8 7 (4.12%) Python
9 2 (1.18%) Java 8
9 2 (1.18%) PHP
9 2 (1.18%) Solidity
10 1 (0.59%) C#
10 1 (0.59%) C++
10 1 (0.59%) Objective-C
10 1 (0.59%) R
10 1 (0.59%) Ruby
10 1 (0.59%) Scala
Qualifications
1 11 (6.47%) Degree
2 10 (5.88%) Security Cleared
3 8 (4.71%) Computer Science Degree
4 5 (2.94%) SC Cleared
Quality Assurance & Compliance
1 12 (7.06%) QA
2 3 (1.76%) WCAG
3 1 (0.59%) PMO
3 1 (0.59%) WAI
System Software
1 50 (29.41%) Docker
2 1 (0.59%) Virtual Machines
Systems Management
1 20 (11.76%) Ansible
2 16 (9.41%) Terraform
3 1 (0.59%) Kubernetes
3 1 (0.59%) Packer
Vendors
1 28 (16.47%) Google
2 4 (2.35%) DevExpress
2 4 (2.35%) Microsoft
3 1 (0.59%) AppDynamics
3 1 (0.59%) Atlassian
3 1 (0.59%) CA Agile Central
3 1 (0.59%) Databricks
3 1 (0.59%) New Relic
3 1 (0.59%) Splunk
3 1 (0.59%) Sybase
3 1 (0.59%) TOWER Software