Period
to 20 October 2021

The following table provides summary statistics for contract job vacancies advertised in the City of 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 20 October 2021 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
Central London > City of London
6 months to
20 Oct 2021
Same period 2020 Same period 2019
Rank 155 107 200
Rank change year-on-year -48 +93 +40
Contract jobs citing Jest 24 10 28
As % of all contract jobs advertised in the City of London 0.62% 0.56% 0.47%
As % of the Libraries, Frameworks & Software Standards category 1.84% 1.87% 1.32%
Number of daily rates quoted 21 9 21
10th Percentile £463 £441 £413
25th Percentile £525 £500 £431
Median daily rate (50th Percentile) £550 £550 £525
Median % change year-on-year - +4.76% -4.55%
75th Percentile £625 £575 £556
90th Percentile £675 £580 £575
Central London median daily rate £550 £550 £530
% change year-on-year - +3.77% -0.47%

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 the City of London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
City of London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 1,305 535 2,120
As % of all contract IT jobs advertised in the City of London 33.56% 29.74% 35.76%
Number of daily rates quoted 1,006 426 1,732
10th Percentile £413 £363 £406
25th Percentile £488 £425 £463
Median daily rate (50th Percentile) £600 £525 £535
Median % change year-on-year +14.29% -1.91% +1.95%
75th Percentile £675 £613 £618
90th Percentile £750 £688 £688
Central London median daily rate £589 £534 £525
% change year-on-year +10.35% +1.67% -
Number of hourly rates quoted 8 4 6
10th Percentile £18.78 £26.28 £31.06
25th Percentile £24.25 £30.44 £41.23
Median hourly rate £35.75 £35.50 £46.85
Median % change year-on-year +0.70% -24.22% +112.94%
75th Percentile £45.25 £38.69 £53.91
90th Percentile £68.43 £39.48 £60.25
Central London median hourly rate £35.00 £35.50 £46.85
% change year-on-year -1.41% -24.22% +112.94%

Jest
Job Vacancy Trend in the City of London

Job postings citing Jest as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Jest in the City of London

Jest
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing Jest in the City of London.

Daily rate trend for Jest in the City of London

Jest
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing Jest in the City of London over the 6 months to 20 October 2021.

Daily rate histogram for Jest in the City of London

Jest
Contract Job Locations in the City of 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 City of London region over the 6 months to 20 October 2021. 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
London Bridge -4 5 £650 +8.33%
Jest
Central London

For the 6 months to 20 October 2021, 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 City of London region with a requirement for Jest.

1 23 (95.83%) JavaScript
2 22 (91.67%) React
3 15 (62.50%) CSS
4 14 (58.33%) HTML
4 14 (58.33%) Front End Development
5 13 (54.17%) Agile Software Development
6 12 (50.00%) Redux
6 12 (50.00%) Jasmine
6 12 (50.00%) TypeScript
7 11 (45.83%) Sass
7 11 (45.83%) AngularJS
7 11 (45.83%) Node.js
8 10 (41.67%) ES6
8 10 (41.67%) Web Services
9 9 (37.50%) AWS
10 8 (33.33%) Cypress.io
11 7 (29.17%) RESTful
11 7 (29.17%) Karma Test Runner
11 7 (29.17%) Git (software)
11 7 (29.17%) Enzyme
12 6 (25.00%) SEO
12 6 (25.00%) TDD
12 6 (25.00%) Pair Programming
12 6 (25.00%) Web Development
12 6 (25.00%) jQuery
12 6 (25.00%) Unit Testing
12 6 (25.00%) Continuous Integration
12 6 (25.00%) JSUnit
12 6 (25.00%) Continuous Delivery
12 6 (25.00%) webpack

Jest
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 4 (16.67%) Oracle SOA Suite
2 1 (4.17%) CMS
Applications
1 3 (12.50%) Adobe Illustrator
Cloud Services
1 9 (37.50%) AWS
2 5 (20.83%) Azure
3 3 (12.50%) Serverless
4 2 (8.33%) AWS CloudFormation
4 2 (8.33%) AWS Lambda
5 1 (4.17%) BrowserStack
5 1 (4.17%) Sauce Labs
Communications & Networking
1 2 (8.33%) HTTP
2 1 (4.17%) Internet
Database & Business Intelligence
1 2 (8.33%) Apache Hive
1 2 (8.33%) Big Data
1 2 (8.33%) NoSQL
2 1 (4.17%) Amazon DynamoDB
Development Applications
1 12 (50.00%) Jasmine
2 8 (33.33%) Cypress.io
3 7 (29.17%) Git (software)
3 7 (29.17%) Karma Test Runner
4 6 (25.00%) JSUnit
4 6 (25.00%) webpack
5 5 (20.83%) Grunt
5 5 (20.83%) gulp
5 5 (20.83%) PhantomJS
6 3 (12.50%) Cucumber
7 2 (8.33%) Selenium
7 2 (8.33%) Storybook
7 2 (8.33%) Visual Studio
7 2 (8.33%) Visual Studio Code
8 1 (4.17%) Appium
8 1 (4.17%) CircleCI
8 1 (4.17%) JIRA
8 1 (4.17%) JUnit
8 1 (4.17%) Mocha
8 1 (4.17%) TestNG
General
1 2 (8.33%) Banking
2 1 (4.17%) Analytical Skills
2 1 (4.17%) Finance
2 1 (4.17%) Front Office
2 1 (4.17%) Retail
2 1 (4.17%) Social Skills
2 1 (4.17%) Telecoms
Job Titles
1 21 (87.50%) Developer
2 13 (54.17%) React Developer
3 12 (50.00%) Front End Developer (Client-Side Developer)
4 7 (29.17%) JavaScript Developer
4 7 (29.17%) Senior Developer
5 6 (25.00%) Senior Front-End Developer
6 5 (20.83%) Node.js Developer
6 5 (20.83%) Senior React Developer
7 4 (16.67%) UI Developer
8 3 (12.50%) Senior JavaScript Developer
9 2 (8.33%) Angular Developer
10 1 (4.17%) Agile Developer
10 1 (4.17%) Big Data Developer
10 1 (4.17%) Business Analyst
10 1 (4.17%) Mobile Engineer
10 1 (4.17%) QA Engineer
10 1 (4.17%) QA Test Engineer
10 1 (4.17%) Senior Business Analyst
10 1 (4.17%) Senior UI Developer
10 1 (4.17%) Test Engineer
Libraries, Frameworks & Software Standards
1 22 (91.67%) React
2 15 (62.50%) CSS
3 14 (58.33%) HTML
4 12 (50.00%) Redux
5 11 (45.83%) AngularJS
5 11 (45.83%) Node.js
5 11 (45.83%) Sass
6 10 (41.67%) Web Services
7 7 (29.17%) Enzyme
7 7 (29.17%) RESTful
8 6 (25.00%) jQuery
8 6 (25.00%) Vue.js
9 5 (20.83%) HTML5
10 4 (16.67%) LESS
11 3 (12.50%) REST
12 2 (8.33%) Semantic HTML
13 1 (4.17%) CSS3
13 1 (4.17%) iOS SDK
13 1 (4.17%) OAuth2
13 1 (4.17%) WebSockets
Miscellaneous
1 5 (20.83%) Algorithms
1 5 (20.83%) Data Structures
1 5 (20.83%) User Experience
2 3 (12.50%) Graphic Design
3 1 (4.17%) Mobile App
3 1 (4.17%) RIA
Operating Systems
1 1 (4.17%) Android
1 1 (4.17%) Apple iOS
Processes & Methodologies
1 14 (58.33%) Front End Development
2 13 (54.17%) Agile Software Development
3 6 (25.00%) Continuous Delivery
3 6 (25.00%) Continuous Integration
3 6 (25.00%) Pair Programming
3 6 (25.00%) SEO
3 6 (25.00%) TDD
3 6 (25.00%) Unit Testing
3 6 (25.00%) User Stories
3 6 (25.00%) Web Development
4 5 (20.83%) Artificial Intelligence
4 5 (20.83%) Build Automation
4 5 (20.83%) Continuous Deployment
4 5 (20.83%) Machine Learning
4 5 (20.83%) Wireframes
5 4 (16.67%) DevOps
5 4 (16.67%) SOA
6 3 (12.50%) Adaptive Web Design
6 3 (12.50%) Infrastructure as Code
6 3 (12.50%) Mentoring
Programming Languages
1 23 (95.83%) JavaScript
2 12 (50.00%) TypeScript
3 10 (41.67%) ES6
4 4 (16.67%) PL/SQL
4 4 (16.67%) SQL
5 3 (12.50%) Java
6 2 (8.33%) Python
7 1 (4.17%) C
7 1 (4.17%) C#
Quality Assurance & Compliance
1 3 (12.50%) Accessibility
2 1 (4.17%) QA
2 1 (4.17%) WCAG
System Software
1 6 (25.00%) Docker
Systems Management
1 5 (20.83%) Opscode Chef
2 1 (4.17%) Kubernetes
Vendors
1 4 (16.67%) Oracle
2 3 (12.50%) Adobe
3 1 (4.17%) Perfecto Mobile