Period
to 27 October 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Jest skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Jest over the 6 months to 27 October 2021 with a comparison to the same period in the previous 2 years.

Jest
Central London > City of London
6 months to
27 Oct 2021
Same period 2020 Same period 2019
Rank 232 176 289
Rank change year-on-year -56 +113 +40
Permanent jobs citing Jest 27 20 37
As % of all permanent jobs advertised in the City of London 0.45% 0.55% 0.37%
As % of the Libraries, Frameworks & Software Standards category 1.13% 1.25% 0.96%
Number of salaries quoted 23 20 32
10th Percentile £51,500 £52,250 £41,375
25th Percentile £55,625 £55,000 £51,563
Median annual salary (50th Percentile) £65,000 £67,500 £62,500
Median % change year-on-year -3.70% +8.00% -3.85%
75th Percentile £93,750 £84,375 £75,250
90th Percentile £108,000 £96,125 £88,625
Central London median annual salary £68,750 £67,500 £65,000
% change year-on-year +1.85% +3.85% -

Jest is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent 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
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2,399 1,596 3,863
As % of all permanent IT jobs advertised in the City of London 39.94% 43.65% 38.81%
Number of salaries quoted 2,164 1,422 3,490
10th Percentile £48,750 £47,500 £45,000
25th Percentile £57,500 £57,500 £55,000
Median annual salary (50th Percentile) £75,000 £70,000 £70,000
Median % change year-on-year +7.14% - +7.69%
75th Percentile £95,000 £86,250 £85,000
90th Percentile £110,000 £102,500 £95,000
Central London median annual salary £75,000 £70,000 £70,000
% change year-on-year +7.14% - +7.69%

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
Salary Trend in the City of London

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

Salary trend for Jest in the City of London

Jest
Salary Histogram in the City of London

Salary distribution for jobs citing Jest in the City of London over the 6 months to 27 October 2021.

Salary histogram for Jest in the City of London

For the 6 months to 27 October 2021, IT 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 permanent job ads across the City of London region with a requirement for Jest.

1 21 (77.78%) React
2 20 (74.07%) JavaScript
3 15 (55.56%) Agile Software Development
3 15 (55.56%) CSS
4 13 (48.15%) Node.js
5 11 (40.74%) TypeScript
6 10 (37.04%) Sass
6 10 (37.04%) Mocha
6 10 (37.04%) HTML
6 10 (37.04%) Unit Testing
6 10 (37.04%) Redux
7 9 (33.33%) Web Services
7 9 (33.33%) Front End Development
8 8 (29.63%) Vue.js
8 8 (29.63%) AngularJS
8 8 (29.63%) Jasmine
8 8 (29.63%) Cypress.io
9 7 (25.93%) Finance
9 7 (25.93%) HTML5
10 6 (22.22%) CSS3
10 6 (22.22%) Git (software)
10 6 (22.22%) Software Engineering
10 6 (22.22%) Ajax
10 6 (22.22%) Selenium
11 5 (18.52%) JSON
11 5 (18.52%) TDD
11 5 (18.52%) Functional Testing
11 5 (18.52%) Enterprise Software
11 5 (18.52%) AWS
11 5 (18.52%) 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 1 (3.70%) CMS
1 1 (3.70%) Confluence
Cloud Services
1 5 (18.52%) AWS
2 4 (14.81%) npm
3 3 (11.11%) GCP
4 2 (7.41%) SaaS
5 1 (3.70%) Azure
5 1 (3.70%) IBM Cloud
5 1 (3.70%) Serverless
5 1 (3.70%) Yarn
Communications & Networking
1 1 (3.70%) HTTP
1 1 (3.70%) VoIP
Database & Business Intelligence
1 2 (7.41%) MongoDB
2 1 (3.70%) NoSQL
2 1 (3.70%) Relational Database
Development Applications
1 10 (37.04%) Mocha
2 8 (29.63%) Cypress.io
2 8 (29.63%) Jasmine
3 6 (22.22%) Git (software)
3 6 (22.22%) Selenium
4 5 (18.52%) webpack
5 3 (11.11%) Jenkins
6 2 (7.41%) Cucumber
6 2 (7.41%) Protractor
6 2 (7.41%) Storybook
7 1 (3.70%) Babel
7 1 (3.70%) CircleCI
7 1 (3.70%) Codeship
7 1 (3.70%) Fiddler
7 1 (3.70%) Mockito
7 1 (3.70%) Postman
7 1 (3.70%) TestCafe
7 1 (3.70%) Travis CI
7 1 (3.70%) Visual Studio Code
7 1 (3.70%) WebDriver
General
1 7 (25.93%) Finance
2 3 (11.11%) Social Skills
3 2 (7.41%) Advertising
3 2 (7.41%) Brand Awareness
3 2 (7.41%) Marketing
4 1 (3.70%) Banking
4 1 (3.70%) Organisational Skills
4 1 (3.70%) Publishing
4 1 (3.70%) Retail
Job Titles
1 18 (66.67%) Developer
2 9 (33.33%) React Developer
3 7 (25.93%) Front End Developer (Client-Side Developer)
4 4 (14.81%) Senior Developer
5 3 (11.11%) Full Stack Developer
5 3 (11.11%) Node.js Developer
5 3 (11.11%) Senior Front-End Developer
5 3 (11.11%) Senior React Developer
6 2 (7.41%) Mobile Engineer
6 2 (7.41%) QA Engineer
7 1 (3.70%) Angular Developer
7 1 (3.70%) Automation Tester
7 1 (3.70%) Developer in Test
7 1 (3.70%) Java Engineer
7 1 (3.70%) JavaScript Developer
7 1 (3.70%) Senior UI Developer
7 1 (3.70%) Software Developer
7 1 (3.70%) Software Engineer
7 1 (3.70%) Tester
7 1 (3.70%) UI Developer
Libraries, Frameworks & Software Standards
1 21 (77.78%) React
2 15 (55.56%) CSS
3 13 (48.15%) Node.js
4 10 (37.04%) HTML
4 10 (37.04%) Redux
4 10 (37.04%) Sass
5 9 (33.33%) Web Services
6 8 (29.63%) AngularJS
6 8 (29.63%) Vue.js
7 7 (25.93%) HTML5
8 6 (22.22%) Ajax
8 6 (22.22%) CSS3
9 5 (18.52%) Enzyme
9 5 (18.52%) JSON
10 4 (14.81%) Ext JS
10 4 (14.81%) GraphQL
10 4 (14.81%) React Native
10 4 (14.81%) REST
11 3 (11.11%) RESTful
11 3 (11.11%) Spring
Miscellaneous
1 5 (18.52%) Enterprise Software
2 4 (14.81%) User Experience
3 3 (11.11%) Data Structures
4 2 (7.41%) Algorithms
4 2 (7.41%) Greenfield Project
4 2 (7.41%) Mobile App
5 1 (3.70%) Spread Betting
5 1 (3.70%) W3C
Operating Systems
1 4 (14.81%) Linux
2 2 (7.41%) Android
2 2 (7.41%) Apple iOS
Processes & Methodologies
1 15 (55.56%) Agile Software Development
2 10 (37.04%) Unit Testing
3 9 (33.33%) Front End Development
4 6 (22.22%) Software Engineering
5 5 (18.52%) Functional Testing
5 5 (18.52%) Problem-Solving
5 5 (18.52%) TDD
6 4 (14.81%) Clean Code
6 4 (14.81%) Continuous Integration
6 4 (14.81%) DevOps
6 4 (14.81%) Fintech
6 4 (14.81%) Full Stack Development
6 4 (14.81%) Test Automation
6 4 (14.81%) Web Testing
7 3 (11.11%) SOA
7 3 (11.11%) SOLID
7 3 (11.11%) Web Accessibility
8 2 (7.41%) Microservices
8 2 (7.41%) Mobile First
8 2 (7.41%) Secure Coding
Programming Languages
1 20 (74.07%) JavaScript
2 11 (40.74%) TypeScript
3 4 (14.81%) Java
4 3 (11.11%) ES6
5 2 (7.41%) C
5 2 (7.41%) Dart
6 1 (3.70%) ES7
6 1 (3.70%) ES8
6 1 (3.70%) Go
Quality Assurance & Compliance
1 5 (18.52%) Accessibility
2 4 (14.81%) QA
3 2 (7.41%) WCAG
System Software
1 1 (3.70%) Docker
Systems Management
1 1 (3.70%) Kubernetes
Vendors
1 2 (7.41%) Google
2 1 (3.70%) IBM