Period
to 17 August 2018

The following table provides summary statistics for contract job vacancies advertised in the City of 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 17 August 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
Central London > City of London
6 months to
17 Aug 2018
Same period 2017 Same period 2016
Rank 222 230 240
Rank change year-on-year +8 +10 -
Contract jobs citing Babel 39 14 3
As % of all contract IT jobs advertised in the City of London 0.55% 0.21% 0.044%
As % of the Development Applications category 2.53% 1.05% 0.26%
Number of daily rates quoted 39 13 3
City of London median daily rate £500 £450 £500
Median daily rate % change year-on-year +11.11% -10.00% -
10th Percentile £413 £374 £375
90th Percentile £620 £545 £560
Central London median daily rate £500 £450 £463
% change year-on-year +11.11% -2.70% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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 the City of London with a requirement for development application skills.

All Development Application Skills
City of London
Contract vacancies with a requirement for development application skills 1,540 1,331 1,173
As % of all contract IT jobs advertised in the City of London 21.87% 20.14% 17.28%
Number of daily rates quoted 1,253 1,017 959
City of London median daily rate £513 £475 £475
Median daily rate % change year-on-year +7.89% - +5.56%
10th Percentile £363 £350 £325
90th Percentile £638 £625 £613
Central London median daily rate £500 £475 £469
% change year-on-year +5.26% +1.23% +5.58%
Number of hourly rates quoted 5 2 2
City of London median hourly rate £32.00 £24.99 £38.25
Median hourly rate % change year-on-year +28.04% -34.66% -15.00%
10th Percentile £27.40 £23.18 £32.23
90th Percentile £58.00 £27.11 £45.68
Central London median hourly rate £33.50 £25.50 £38.25
% change year-on-year +31.37% -33.33% -15.00%

Babel
Job Vacancy Trend in the City of London

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

Job vacancy trend for Babel in the City of London

Babel
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for Babel in the City of London

Babel
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Babel in the City of London over the 6 months to 17 August 2018.

Contractor daily rate histogram for Babel in the City of London

For the 6 months to 17 August 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 City of London region with a requirement for Babel.

1 36 (92.31%) webpack
2 34 (87.18%) React
3 31 (79.49%) JavaScript
4 28 (71.79%) Redux
5 26 (66.67%) CSS
6 24 (61.54%) Agile Software Development
7 22 (56.41%) TDD
7 22 (56.41%) ES6
8 21 (53.85%) Node.js
9 18 (46.15%) Sass
10 15 (38.46%) HTML
11 13 (33.33%) CSS3
12 11 (28.21%) DevOps
12 11 (28.21%) Front End Development
12 11 (28.21%) HTML5
13 10 (25.64%) JSON
14 9 (23.08%) Scrum
14 9 (23.08%) Java
14 9 (23.08%) BDD
14 9 (23.08%) RESTful
14 9 (23.08%) Git (software)
14 9 (23.08%) React Native
14 9 (23.08%) Docker
14 9 (23.08%) npm
15 8 (20.51%) gulp
15 8 (20.51%) Finance
15 8 (20.51%) Tomcat
16 7 (17.95%) HTTP
16 7 (17.95%) XML
16 7 (17.95%) Web Accessibility

Babel
Co-occurring IT Skills in the City of 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 8 (20.51%) Tomcat
2 1 (2.56%) Cloud Foundry
2 1 (2.56%) Confluence
2 1 (2.56%) Mule
Cloud Services
1 9 (23.08%) npm
2 7 (17.95%) Serverless
3 6 (15.38%) Amazon AWS
4 5 (12.82%) Google Cloud Platform
5 4 (10.26%) Microsoft Azure
6 3 (7.69%) GitHub
7 2 (5.13%) Heroku
8 1 (2.56%) IaaS
8 1 (2.56%) PaaS
8 1 (2.56%) Slack
Communications & Networking
1 7 (17.95%) HTTP
Database & Business Intelligence
1 3 (7.69%) PostgreSQL
2 1 (2.56%) Big Data
2 1 (2.56%) Blockchain
2 1 (2.56%) MySQL
Development Applications
1 36 (92.31%) webpack
2 9 (23.08%) Git (software)
3 8 (20.51%) gulp
4 7 (17.95%) Grunt
4 7 (17.95%) Jasmine
4 7 (17.95%) Mocha
5 5 (12.82%) CircleCI
6 3 (7.69%) Jenkins
6 3 (7.69%) JIRA
7 2 (5.13%) Atlassian Bamboo
8 1 (2.56%) Cucumber
8 1 (2.56%) JUnit
8 1 (2.56%) Maven
8 1 (2.56%) Selenium
8 1 (2.56%) SonarQube
8 1 (2.56%) Sonatype Nexus
8 1 (2.56%) WebDriver
General
1 8 (20.51%) Finance
2 5 (12.82%) Banking
3 3 (7.69%) Retail
4 2 (5.13%) Retail Banking
Job Titles
1 35 (89.74%) Developer
2 19 (48.72%) React Developer
3 16 (41.03%) JavaScript Developer
4 13 (33.33%) UI Developer
5 9 (23.08%) Node.js Developer
6 7 (17.95%) Integration Developer
7 6 (15.38%) Full Stack Developer
7 6 (15.38%) Java Developer
8 3 (7.69%) Senior Developer
8 3 (7.69%) Senior JavaScript Developer
8 3 (7.69%) UI/UX Developer
8 3 (7.69%) UX Developer
9 2 (5.13%) Front End Developer (Client-Side Developer)
9 2 (5.13%) JavaScript Engineer
9 2 (5.13%) Senior React Developer
9 2 (5.13%) Senior Software Engineer
9 2 (5.13%) Software Engineer
10 1 (2.56%) Cloud Engineer
10 1 (2.56%) Cloud Software Engineer
10 1 (2.56%) Senior Cloud Engineer
Libraries, Frameworks & Software Standards
1 34 (87.18%) React
2 28 (71.79%) Redux
3 26 (66.67%) CSS
4 21 (53.85%) Node.js
5 18 (46.15%) Sass
6 15 (38.46%) HTML
7 13 (33.33%) CSS3
8 11 (28.21%) HTML5
9 10 (25.64%) JSON
10 9 (23.08%) React Native
10 9 (23.08%) RESTful
11 7 (17.95%) Apache Camel
11 7 (17.95%) Java EE
11 7 (17.95%) OAuth
11 7 (17.95%) OAuth2
11 7 (17.95%) OpenID
11 7 (17.95%) RabbitMQ
11 7 (17.95%) XML
12 6 (15.38%) Express
12 6 (15.38%) GraphQL
Miscellaneous
1 7 (17.95%) Greenfield Project
1 7 (17.95%) User Experience
2 4 (10.26%) Mobile App
3 3 (7.69%) Fintech
4 2 (5.13%) Computer Science
5 1 (2.56%) Algorithms
5 1 (2.56%) Cloud Native
Operating Systems
1 2 (5.13%) Android
1 2 (5.13%) Apple iOS
Processes & Methodologies
1 24 (61.54%) Agile Software Development
2 22 (56.41%) TDD
3 11 (28.21%) DevOps
3 11 (28.21%) Front End Development
4 9 (23.08%) BDD
4 9 (23.08%) Scrum
5 7 (17.95%) Continuous Integration
5 7 (17.95%) Web Accessibility
5 7 (17.95%) Wireframes
6 6 (15.38%) Software Engineering
7 5 (12.82%) Pair Programming
8 3 (7.69%) Kanban
8 3 (7.69%) Machine Learning
8 3 (7.69%) Wealth Management
9 2 (5.13%) Continuous Delivery
9 2 (5.13%) Dependency Management
9 2 (5.13%) Mobile Development
9 2 (5.13%) Performance Optimisation
9 2 (5.13%) Responsive Web Design
9 2 (5.13%) Web Application Development
Programming Languages
1 31 (79.49%) JavaScript
2 22 (56.41%) ES6
3 9 (23.08%) Java
4 7 (17.95%) JSX
4 7 (17.95%) TypeScript
5 2 (5.13%) ES7
5 2 (5.13%) ES8
5 2 (5.13%) Kotlin
5 2 (5.13%) Objective-C
5 2 (5.13%) PHP
5 2 (5.13%) SQL
6 1 (2.56%) Java 8
Quality Assurance & Compliance
1 1 (2.56%) QA
System Software
1 9 (23.08%) Docker
Systems Management
1 3 (7.69%) Ansible
1 3 (7.69%) Kubernetes
2 2 (5.13%) Terraform
Vendors
1 5 (12.82%) Google
2 2 (5.13%) Atlassian
2 2 (5.13%) DevExpress
3 1 (2.56%) AppDynamics
3 1 (2.56%) Splunk