Period
to 18 October 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 18 October 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
18 Oct 2018
Same period 2017 Same period 2016
Rank 229 228 239
Rank change year-on-year -1 +11 -
Contract jobs citing Babel 33 18 6
As % of all contract IT jobs advertised in the City of London 0.47% 0.26% 0.090%
As % of the Development Applications category 2.11% 1.38% 0.50%
Number of daily rates quoted 33 17 6
City of London median daily rate £475 £475 £500
Median daily rate % change year-on-year - -5.00% -
10th Percentile £413 £425 £413
90th Percentile £610 £568 £563
Central London median daily rate £475 £525 £500
% change year-on-year -9.52% +5.00% -
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 1,563 1,309 1,203
As % of all contract IT jobs advertised in the City of London 22.30% 19.10% 18.01%
Number of daily rates quoted 1,286 1,009 984
City of London median daily rate £500 £498 £475
Median daily rate % change year-on-year +0.50% +4.74% +5.56%
10th Percentile £363 £350 £325
90th Percentile £634 £638 £625
Central London median daily rate £500 £475 £475
% change year-on-year +5.26% - +5.56%
Number of hourly rates quoted 3 2 1
City of London median hourly rate £32.00 £24.99 £32.50
Median hourly rate % change year-on-year +28.04% -23.10% -13.33%
10th Percentile £31.00 £23.18 £31.25
90th Percentile £41.60 £27.11 £33.75
Central London median hourly rate £33.50 £27.75 £32.50
% change year-on-year +20.72% -14.62% -13.33%

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 18 October 2018.

Contractor daily rate histogram for Babel in the City of London

For the 6 months to 18 October 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 29 (87.88%) webpack
2 28 (84.85%) React
3 27 (81.82%) Redux
4 26 (78.79%) JavaScript
5 22 (66.67%) CSS
6 21 (63.64%) Agile Software Development
7 20 (60.61%) TDD
8 17 (51.52%) HTML
8 17 (51.52%) Sass
9 15 (45.45%) Node.js
9 15 (45.45%) ES6
10 14 (42.42%) CSS3
11 13 (39.39%) HTML5
12 11 (33.33%) React Native
12 11 (33.33%) Git (software)
12 11 (33.33%) Front End Development
13 10 (30.30%) npm
13 10 (30.30%) JSON
13 10 (30.30%) Java
14 9 (27.27%) Scrum
14 9 (27.27%) Continuous Integration
14 9 (27.27%) DevOps
14 9 (27.27%) BDD
15 8 (24.24%) Docker
15 8 (24.24%) gulp
15 8 (24.24%) RESTful
15 8 (24.24%) Tomcat
16 7 (21.21%) XML
16 7 (21.21%) Web Accessibility
16 7 (21.21%) Java EE

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 (24.24%) Tomcat
2 1 (3.03%) Cloud Foundry
2 1 (3.03%) Confluence
2 1 (3.03%) Mule
Applications
1 1 (3.03%) Adobe Illustrator
1 1 (3.03%) InVision
Cloud Services
1 10 (30.30%) npm
2 5 (15.15%) Amazon AWS
3 4 (12.12%) GitHub
4 3 (9.09%) Google Cloud Platform
4 3 (9.09%) Heroku
4 3 (9.09%) Microsoft Azure
4 3 (9.09%) Serverless
5 2 (6.06%) Yarn
6 1 (3.03%) IaaS
6 1 (3.03%) PaaS
6 1 (3.03%) Slack
Communications & Networking
1 3 (9.09%) HTTP
Database & Business Intelligence
1 3 (9.09%) PostgreSQL
2 1 (3.03%) Big Data
2 1 (3.03%) Blockchain
2 1 (3.03%) MySQL
Development Applications
1 29 (87.88%) webpack
2 11 (33.33%) Git (software)
3 8 (24.24%) gulp
4 7 (21.21%) Grunt
4 7 (21.21%) Mocha
5 5 (15.15%) CircleCI
5 5 (15.15%) Jasmine
6 3 (9.09%) Jenkins
6 3 (9.09%) JIRA
7 1 (3.03%) Atlassian Bamboo
7 1 (3.03%) Cucumber
7 1 (3.03%) JUnit
7 1 (3.03%) Maven
7 1 (3.03%) Mercurial
7 1 (3.03%) Selenium
7 1 (3.03%) SonarQube
7 1 (3.03%) Sonatype Nexus
7 1 (3.03%) WebDriver
General
1 6 (18.18%) Finance
2 3 (9.09%) Banking
3 1 (3.03%) Digital Economy
3 1 (3.03%) Marketing
3 1 (3.03%) Retail
3 1 (3.03%) Retail Banking
Job Titles
1 32 (96.97%) Developer
2 17 (51.52%) React Developer
3 10 (30.30%) JavaScript Developer
4 9 (27.27%) UI Developer
5 7 (21.21%) Integration Developer
6 6 (18.18%) Full Stack Developer
6 6 (18.18%) Java Developer
7 4 (12.12%) Node.js Developer
8 2 (6.06%) Front End Developer (Client-Side Developer)
8 2 (6.06%) Senior Developer
8 2 (6.06%) Senior JavaScript Developer
8 2 (6.06%) Senior React Developer
9 1 (3.03%) Cloud Engineer
9 1 (3.03%) Cloud Software Engineer
9 1 (3.03%) JavaScript Engineer
9 1 (3.03%) Senior Cloud Engineer
9 1 (3.03%) Senior Software Engineer
9 1 (3.03%) Software Engineer
Libraries, Frameworks & Software Standards
1 28 (84.85%) React
2 27 (81.82%) Redux
3 22 (66.67%) CSS
4 17 (51.52%) HTML
4 17 (51.52%) Sass
5 15 (45.45%) Node.js
6 14 (42.42%) CSS3
7 13 (39.39%) HTML5
8 11 (33.33%) React Native
9 10 (30.30%) JSON
10 8 (24.24%) RESTful
11 7 (21.21%) Apache Camel
11 7 (21.21%) Java EE
11 7 (21.21%) RabbitMQ
11 7 (21.21%) XML
12 5 (15.15%) REST
13 4 (12.12%) Chai
13 4 (12.12%) Express
13 4 (12.12%) GraphQL
13 4 (12.12%) Jest
Miscellaneous
1 6 (18.18%) Greenfield Project
2 5 (15.15%) Mobile App
2 5 (15.15%) User Experience
3 3 (9.09%) Fintech
4 2 (6.06%) Algorithms
4 2 (6.06%) Computer Science
5 1 (3.03%) Cloud Native
Operating Systems
1 3 (9.09%) Android
1 3 (9.09%) Apple iOS
2 1 (3.03%) Linux
Processes & Methodologies
1 21 (63.64%) Agile Software Development
2 20 (60.61%) TDD
3 11 (33.33%) Front End Development
4 9 (27.27%) BDD
4 9 (27.27%) Continuous Integration
4 9 (27.27%) DevOps
4 9 (27.27%) Scrum
5 7 (21.21%) Web Accessibility
6 6 (18.18%) Unit Testing
7 5 (15.15%) Software Engineering
8 4 (12.12%) Pair Programming
9 3 (9.09%) Kanban
9 3 (9.09%) Wireframes
10 2 (6.06%) Due Diligence
10 2 (6.06%) E-Commerce
10 2 (6.06%) Mathematics
10 2 (6.06%) Open Source
10 2 (6.06%) Performance Optimisation
10 2 (6.06%) Problem-Solving
10 2 (6.06%) Web Application Development
Programming Languages
1 26 (78.79%) JavaScript
2 15 (45.45%) ES6
3 10 (30.30%) Java
4 7 (21.21%) TypeScript
5 3 (9.09%) JSX
6 2 (6.06%) ES7
6 2 (6.06%) ES8
6 2 (6.06%) Java 8
6 2 (6.06%) Kotlin
6 2 (6.06%) Objective-C
6 2 (6.06%) PHP
6 2 (6.06%) SQL
Quality Assurance & Compliance
1 3 (9.09%) QA
System Software
1 8 (24.24%) Docker
Systems Management
1 4 (12.12%) Ansible
2 2 (6.06%) Kubernetes
3 1 (3.03%) Terraform
Vendors
1 3 (9.09%) Google
2 2 (6.06%) Atlassian
3 1 (3.03%) AppDynamics
3 1 (3.03%) DevExpress
3 1 (3.03%) Splunk