Period
to 19 February 2018

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 19 February 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.

Jest
England > London
6 months to
19 Feb 2018
Same period 2017 Same period 2016
Rank 524 579 595
Rank change year-on-year +55 +16 -
Contract jobs citing Jest 102 3 6
As % of all contract IT jobs advertised in London 0.22% 0.007% 0.013%
As % of the Libraries, Frameworks & Software Standards category 0.61% 0.021% 0.042%
Number of daily rates quoted 83 2 3
London median daily rate £475 £410 £550
Median daily rate % change year-on-year +15.85% -25.45% -
10th Percentile £408 £338 £405
90th Percentile £585 £482 £610
England median daily rate £475 £400 £550
% change year-on-year +18.75% -27.27% -
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 16,717 14,471 14,445
As % of all contract IT jobs advertised in London 35.89% 35.57% 32.49%
Number of daily rates quoted 12,973 10,853 10,849
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +5.88%
10th Percentile £356 £325 £310
90th Percentile £650 £638 £625
England median daily rate £475 £433 £425
% change year-on-year +9.83% +1.76% +6.25%
Number of hourly rates quoted 111 74 87
London median hourly rate £33.54 £45.00 £35.00
Median hourly rate % change year-on-year -25.47% +28.57% -1.41%
10th Percentile £20.00 £20.54 £15.65
90th Percentile £48.75 £76.25 £58.00
England median hourly rate £40.00 £40.00 £38.50
% change year-on-year - +3.90% +10.00%

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 19 February 2018.

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 19 February 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 - 36 £475 - 8
West London - 2 £525 - 2
South London - 1 £600 -
Jest
England

For the 6 months to 19 February 2018, IT contractor jobs citing Jest 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 Jest.

1 80 (78.43%) JavaScript
2 68 (66.67%) React
3 67 (65.69%) Agile Software Development
4 66 (64.71%) Redux
5 52 (50.98%) Node.js
6 50 (49.02%) CSS
7 44 (43.14%) webpack
8 43 (42.16%) TDD
9 40 (39.22%) Mocha
10 36 (35.29%) Amazon AWS
11 31 (30.39%) HTML
11 31 (30.39%) Jasmine
11 31 (30.39%) Mobile App
11 31 (30.39%) Front End Development
12 30 (29.41%) ES6
12 30 (29.41%) Enzyme
13 27 (26.47%) Sass
14 26 (25.49%) HTML5
15 24 (23.53%) CSS3
15 24 (23.53%) Software Engineering
15 24 (23.53%) PostgreSQL
16 22 (21.57%) Web Services
16 22 (21.57%) AngularJS
16 22 (21.57%) Docker
17 21 (20.59%) Jenkins
17 21 (20.59%) Babel
18 20 (19.61%) gulp
18 20 (19.61%) Chai
19 19 (18.63%) User Experience
19 19 (18.63%) Android

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 (0.98%) Cloud Foundry
1 1 (0.98%) Confluence
1 1 (0.98%) Mule
1 1 (0.98%) OpenStack
1 1 (0.98%) Tomcat
Cloud Services
1 36 (35.29%) Amazon AWS
2 15 (14.71%) Amazon S3
2 15 (14.71%) Microsoft Azure
3 14 (13.73%) npm
4 10 (9.80%) Amazon SQS
5 4 (3.92%) AWS Lambda
5 4 (3.92%) CloudFront
5 4 (3.92%) Serverless
6 2 (1.96%) GitHub
6 2 (1.96%) Google Cloud Platform
6 2 (1.96%) IaaS
6 2 (1.96%) PaaS
6 2 (1.96%) Twilio
7 1 (0.98%) Amazon EC2
7 1 (0.98%) Amazon ELB
7 1 (0.98%) Google Analytics
7 1 (0.98%) Heroku
7 1 (0.98%) Slack
Communications & Networking
1 7 (6.86%) Skype
2 4 (3.92%) Bluetooth
3 1 (0.98%) HTTP
3 1 (0.98%) Internet
Database & Business Intelligence
1 24 (23.53%) PostgreSQL
2 14 (13.73%) Amazon DynamoDB
3 13 (12.75%) NoSQL
4 11 (10.78%) MySQL
5 8 (7.84%) MongoDB
6 5 (4.90%) Neo4j
7 2 (1.96%) Apache Cassandra
7 2 (1.96%) Blockchain
7 2 (1.96%) CouchDB
7 2 (1.96%) Redis
8 1 (0.98%) Amazon RDS
8 1 (0.98%) SQL Server
Development Applications
1 44 (43.14%) webpack
2 40 (39.22%) Mocha
3 31 (30.39%) Jasmine
4 21 (20.59%) Babel
4 21 (20.59%) Jenkins
5 20 (19.61%) gulp
6 18 (17.65%) Git (software)
7 15 (14.71%) Grunt
7 15 (14.71%) Selenium
8 13 (12.75%) Cucumber
9 10 (9.80%) PhantomJS
10 8 (7.84%) CircleCI
11 7 (6.86%) Sonatype Nexus
11 7 (6.86%) WebDriver
12 6 (5.88%) JIRA
12 6 (5.88%) Sinon.JS
13 5 (4.90%) GitLab
14 3 (2.94%) PostCSS
15 2 (1.96%) Karma Test Runner
15 2 (1.96%) Protractor
General
1 14 (13.73%) Games
2 11 (10.78%) Finance
3 10 (9.80%) Telecoms
4 9 (8.82%) Banking
5 2 (1.96%) Marketing
6 1 (0.98%) French Language
6 1 (0.98%) Law
6 1 (0.98%) Retail
Job Titles
1 84 (82.35%) Developer
2 44 (43.14%) React Developer
3 26 (25.49%) Front End Developer (Client-Side Developer)
4 17 (16.67%) JavaScript Developer
5 15 (14.71%) Full Stack Developer
6 10 (9.80%) Node.js Developer
7 9 (8.82%) Software Engineer
8 6 (5.88%) JavaScript Engineer
8 6 (5.88%) Senior Developer
9 4 (3.92%) Senior Full Stack Developer
9 4 (3.92%) Software Developer
10 3 (2.94%) Angular Developer
10 3 (2.94%) Developer/Software Engineer
11 2 (1.96%) HTML CSS Developer
11 2 (1.96%) HTML Developer
11 2 (1.96%) Java Developer
11 2 (1.96%) Senior Front-End Developer
11 2 (1.96%) SQL Developer
11 2 (1.96%) Web Engineer
12 1 (0.98%) UI Developer
Libraries, Frameworks & Software Standards
1 68 (66.67%) React
2 66 (64.71%) Redux
3 52 (50.98%) Node.js
4 50 (49.02%) CSS
5 31 (30.39%) HTML
6 30 (29.41%) Enzyme
7 27 (26.47%) Sass
8 26 (25.49%) HTML5
9 24 (23.53%) CSS3
10 22 (21.57%) AngularJS
10 22 (21.57%) Web Services
11 20 (19.61%) Chai
12 18 (17.65%) RESTful
13 17 (16.67%) React Native
14 15 (14.71%) Express
15 12 (11.76%) LESS
16 11 (10.78%) Swagger
17 10 (9.80%) OAuth2
17 10 (9.80%) Twitter Bootstrap
18 9 (8.82%) jQuery
Miscellaneous
1 31 (30.39%) Mobile App
2 19 (18.63%) User Experience
3 17 (16.67%) Greenfield Project
4 15 (14.71%) Computer Science
5 9 (8.82%) Algorithms
5 9 (8.82%) Data Structures
6 6 (5.88%) Mobile Games
6 6 (5.88%) Virtual Team
7 5 (4.90%) Fintech
7 5 (4.90%) Social Media
8 3 (2.94%) Clustering
9 1 (0.98%) Animation
9 1 (0.98%) Blog
9 1 (0.98%) FMCG
9 1 (0.98%) Foreign Exchange (FX)
9 1 (0.98%) Management Information System
Operating Systems
1 19 (18.63%) Android
2 7 (6.86%) Apple iOS
3 1 (0.98%) Linux
Processes & Methodologies
1 67 (65.69%) Agile Software Development
2 43 (42.16%) TDD
3 31 (30.39%) Front End Development
4 24 (23.53%) Software Engineering
5 18 (17.65%) Responsive Web Design
6 17 (16.67%) Test Automation
6 17 (16.67%) Unit Testing
7 16 (15.69%) Continuous Deployment
8 12 (11.76%) Build Automation
9 11 (10.78%) Mathematics
9 11 (10.78%) Microservices
9 11 (10.78%) Mobile Application Development
9 11 (10.78%) Scrum
10 10 (9.80%) Continuous Integration
10 10 (9.80%) Pair Programming
11 9 (8.82%) Android Development
11 9 (8.82%) Kanban
11 9 (8.82%) Prototyping
11 9 (8.82%) Rapid Prototyping
11 9 (8.82%) Validation
Programming Languages
1 80 (78.43%) JavaScript
2 30 (29.41%) ES6
3 12 (11.76%) ES8
3 12 (11.76%) Java
4 11 (10.78%) SQL
5 6 (5.88%) ES7
5 6 (5.88%) TypeScript
6 2 (1.96%) Go
6 2 (1.96%) Python
6 2 (1.96%) Scala
7 1 (0.98%) C
7 1 (0.98%) C#
7 1 (0.98%) Clojure
7 1 (0.98%) Erlang
7 1 (0.98%) F#
7 1 (0.98%) GraphQL
7 1 (0.98%) PHP
7 1 (0.98%) Ruby
Qualifications
1 16 (15.69%) Degree
2 15 (14.71%) Computer Science Degree
Quality Assurance & Compliance
1 1 (0.98%) QA
1 1 (0.98%) WCAG
System Software
1 22 (21.57%) Docker
Systems Management
1 12 (11.76%) Opscode Chef
2 4 (3.92%) Packer
2 4 (3.92%) Terraform
Vendors
1 15 (14.71%) Google
2 4 (3.92%) New Relic
3 1 (0.98%) AppDynamics
3 1 (0.98%) DevExpress
3 1 (0.98%) ServiceNow
3 1 (0.98%) Splunk