Period
to 14 December 2017

The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Jest skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Jest over the 6 months to 14 December 2017 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.

Jest
England > London
6 months to
14 Dec 2017
Same period 2016 Same period 2015
Rank 563 610 615
Rank change year-on-year +47 +5 -
Contract jobs citing Jest 68 6 2
As % of all contract IT jobs advertised in London 0.14% 0.013% 0.004%
As % of the Libraries, Frameworks & Software Standards category 0.39% 0.039% 0.013%
Number of daily rates quoted 55 2 0
London median daily rate £475 £310 -
Median daily rate % change year-on-year +53.23% - -
England median daily rate £475 £391 -
% change year-on-year +21.41% - -
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

Jest is in the Software Libraries and Frameworks 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 technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 17526 15382 15066
As % of all contract IT jobs advertised in London 36.88% 34.48% 32.48%
Number of daily rates quoted 13431 11488 11244
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £350 £323 £309
90th Percentile £650 £625 £625
England median daily rate £475 £425 £415
% change year-on-year +11.65% +2.41% +3.75%
Number of hourly rates quoted 99 69 96
London median hourly rate £29.00 £42.25 £37.50
Median hourly rate % change year-on-year -31.36% +12.67% +4.17%
10th Percentile £19.00 £19.18 £14.25
90th Percentile £47.83 £59.50 £55.00
England median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.67% +7.14%

Jest
Job Vacancy Trend in London

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

Job vacancy trend for Jest in London

Jest
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Jest in London

Jest
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Jest in London over the 6 months to 14 December 2017.

Contractor daily rate histogram for Jest in London

Jest
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 Jest within the London region over the 6 months to 14 December 2017. 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 - 27 £475 - 1
West London - 3 £450 - 2
Jest
England

For the 6 months to 14 December 2017, IT contractor jobs citing Jest also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for Jest.

1 51 (75.00%) JavaScript
2 50 (73.53%) Agile Software Development
3 43 (63.24%) React
4 39 (57.35%) TDD
5 38 (55.88%) Redux
6 31 (45.59%) webpack
6 31 (45.59%) Node.js
7 24 (35.29%) CSS
8 23 (33.82%) Jasmine
9 20 (29.41%) Mobile App
9 20 (29.41%) ES6
10 19 (27.94%) Mocha
11 18 (26.47%) Amazon AWS
11 18 (26.47%) Sass
11 18 (26.47%) Web Services
12 16 (23.53%) Git (software)
12 16 (23.53%) Front End Development
13 15 (22.06%) gulp
13 15 (22.06%) React Native
13 15 (22.06%) Docker
13 15 (22.06%) HTML
14 14 (20.59%) Software Engineering
14 14 (20.59%) HTML5
14 14 (20.59%) Jenkins
14 14 (20.59%) CSS3
14 14 (20.59%) Continuous Deployment
15 13 (19.12%) Enzyme
15 13 (19.12%) Babel
16 12 (17.65%) Selenium
16 12 (17.65%) Games

Jest
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 1 (1.47%) Confluence
Cloud Services
1 18 (26.47%) Amazon AWS
2 10 (14.71%) Microsoft Azure
2 10 (14.71%) npm
3 5 (7.35%) Amazon S3
4 4 (5.88%) AWS Lambda
4 4 (5.88%) CloudFront
4 4 (5.88%) Serverless
5 1 (1.47%) Amazon EC2
5 1 (1.47%) Amazon ELB
5 1 (1.47%) BrowserStack
5 1 (1.47%) Heroku
5 1 (1.47%) IaaS
5 1 (1.47%) PaaS
Communications & Networking
1 4 (5.88%) Bluetooth
1 4 (5.88%) Skype
2 1 (1.47%) HTTP
2 1 (1.47%) Internet
Database & Business Intelligence
1 8 (11.76%) PostgreSQL
2 5 (7.35%) Neo4j
3 4 (5.88%) Amazon DynamoDB
4 3 (4.41%) MongoDB
5 2 (2.94%) NoSQL
6 1 (1.47%) Amazon RDS
6 1 (1.47%) Blockchain
6 1 (1.47%) DB2
6 1 (1.47%) SQL Server
Development Applications
1 31 (45.59%) webpack
2 23 (33.82%) Jasmine
3 19 (27.94%) Mocha
4 16 (23.53%) Git (software)
5 15 (22.06%) gulp
6 14 (20.59%) Jenkins
7 13 (19.12%) Babel
8 12 (17.65%) Selenium
9 10 (14.71%) Cucumber
9 10 (14.71%) Grunt
9 10 (14.71%) PhantomJS
10 7 (10.29%) JIRA
11 5 (7.35%) GitLab
11 5 (7.35%) Sinon.JS
11 5 (7.35%) Sonatype Nexus
11 5 (7.35%) WebDriver
12 3 (4.41%) CircleCI
12 3 (4.41%) PostCSS
13 2 (2.94%) Karma Test Runner
14 1 (1.47%) Apache Ivy
General
1 12 (17.65%) Games
2 8 (11.76%) Finance
3 6 (8.82%) Banking
4 5 (7.35%) Marketing
5 4 (5.88%) Retail
6 1 (1.47%) Investment Banking
6 1 (1.47%) Law
6 1 (1.47%) Retail Banking
6 1 (1.47%) Telecoms
Job Titles
1 55 (80.88%) Developer
2 15 (22.06%) Front End Developer (Client-Side Developer)
3 9 (13.24%) Full Stack Developer
4 7 (10.29%) JavaScript Developer
5 6 (8.82%) Node.js Developer
6 5 (7.35%) JavaScript Engineer
6 5 (7.35%) Senior Developer
7 4 (5.88%) Senior Full Stack Developer
7 4 (5.88%) Software Engineer
8 3 (4.41%) Software Developer
9 2 (2.94%) Developer/Software Engineer
9 2 (2.94%) Web Engineer
10 1 (1.47%) Architect
10 1 (1.47%) Developer in Test
10 1 (1.47%) HTML CSS Developer
10 1 (1.47%) Lead Developer
10 1 (1.47%) Senior Front-End Developer
10 1 (1.47%) Senior JavaScript Developer
10 1 (1.47%) Senior Software Engineer
10 1 (1.47%) Test Architect
Libraries, Frameworks & Software Standards
1 43 (63.24%) React
2 38 (55.88%) Redux
3 31 (45.59%) Node.js
4 24 (35.29%) CSS
5 18 (26.47%) Sass
5 18 (26.47%) Web Services
6 15 (22.06%) HTML
6 15 (22.06%) React Native
7 14 (20.59%) CSS3
7 14 (20.59%) HTML5
8 13 (19.12%) Enzyme
9 11 (16.18%) LESS
9 11 (16.18%) RESTful
10 8 (11.76%) AngularJS
10 8 (11.76%) Chai
11 6 (8.82%) Express
11 6 (8.82%) Vue (Vue.js)
12 5 (7.35%) koa
13 4 (5.88%) Apache Cordova
13 4 (5.88%) Ionic Framework
Miscellaneous
1 20 (29.41%) Mobile App
2 8 (11.76%) User Experience
3 7 (10.29%) Algorithms
3 7 (10.29%) Data Structures
4 6 (8.82%) Greenfield Project
4 6 (8.82%) Mobile Games
5 5 (7.35%) Social Media
5 5 (7.35%) Virtual Team
6 4 (5.88%) Computer Science
7 2 (2.94%) Fintech
7 2 (2.94%) FMCG
7 2 (2.94%) Management Information System
8 1 (1.47%) Mobile Banking
Operating Systems
1 11 (16.18%) Android
2 7 (10.29%) Apple iOS
Processes & Methodologies
1 50 (73.53%) Agile Software Development
2 39 (57.35%) TDD
3 16 (23.53%) Front End Development
4 14 (20.59%) Continuous Deployment
4 14 (20.59%) Software Engineering
5 11 (16.18%) Pair Programming
5 11 (16.18%) Test Automation
6 10 (14.71%) Build Automation
6 10 (14.71%) Scrum
6 10 (14.71%) Unit Testing
7 9 (13.24%) BDD
8 8 (11.76%) Kanban
9 7 (10.29%) Android Development
9 7 (10.29%) Continuous Integration
9 7 (10.29%) iOS Development
9 7 (10.29%) Prototyping
9 7 (10.29%) Rapid Prototyping
9 7 (10.29%) Responsive Web Design
9 7 (10.29%) Validation
10 6 (8.82%) DevOps
Programming Languages
1 51 (75.00%) JavaScript
2 20 (29.41%) ES6
3 6 (8.82%) TypeScript
4 4 (5.88%) GraphQL
4 4 (5.88%) Java
5 2 (2.94%) C
5 2 (2.94%) SQL
6 1 (1.47%) Apple Swift
6 1 (1.47%) Go
6 1 (1.47%) Objective-C
6 1 (1.47%) Scala
Qualifications
1 4 (5.88%) Computer Science Degree
1 4 (5.88%) Degree
Quality Assurance & Compliance
1 1 (1.47%) QA
1 1 (1.47%) WCAG
System Software
1 15 (22.06%) Docker
Systems Management
1 10 (14.71%) Opscode Chef
2 4 (5.88%) Packer
2 4 (5.88%) Terraform
Vendors
1 4 (5.88%) Google
1 4 (5.88%) New Relic
2 1 (1.47%) Oracle
2 1 (1.47%) Tealium