Period
to 23 September 2021

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 23 September 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
England > London
6 months to
23 Sep 2021
Same period 2020 Same period 2019
Rank 304 288 401
Rank change year-on-year -16 +113 +18
Contract jobs citing Jest 289 75 185
As % of all contract jobs advertised in London 0.85% 0.56% 0.48%
As % of the Libraries, Frameworks & Software Standards category 2.46% 1.46% 1.33%
Number of daily rates quoted 204 48 153
10th Percentile £380 £343 £400
25th Percentile £463 £413 £438
Median daily rate (50th Percentile) £550 £500 £530
Median % change year-on-year +10.00% -5.66% +2.17%
75th Percentile £625 £575 £600
90th Percentile £686 £613 £648
England median daily rate £520 £475 £500
% change year-on-year +9.47% -5.00% -

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 11,738 5,122 13,953
As % of all contract IT jobs advertised in London 34.60% 38.29% 36.24%
Number of daily rates quoted 8,804 3,774 10,490
10th Percentile £400 £363 £375
25th Percentile £469 £425 £450
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +1.45%
75th Percentile £658 £625 £613
90th Percentile £725 £713 £688
England median daily rate £525 £500 £500
% change year-on-year +5.00% - +5.26%
Number of hourly rates quoted 47 22 61
10th Percentile £21.11 £21.60 £16.25
25th Percentile £35.00 £23.88 £34.00
Median hourly rate £49.00 £34.23 £50.00
Median % change year-on-year +43.17% -31.55% +14.61%
75th Percentile £66.38 £47.06 £53.75
90th Percentile £72.80 £53.64 £68.75
England median hourly rate £49.00 £43.00 £46.40
% change year-on-year +13.95% -7.33% +10.48%

Jest
Job Vacancy Trend in London

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

Job vacancy trend for Jest in London

Jest
Contractor Daily Rate Trend in London

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

Daily rate trend for Jest in London

Jest
Daily Rate Histogram in London

Daily rate distribution for jobs citing Jest in London over the 6 months to 23 September 2021.

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 23 September 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
Central London -35 24 £550 - 24
West London -6 8 £600 - 11
South London +1 4 £550 +4.76% 4
East London - 2 £704 - 7
Jest
England

For the 6 months to 23 September 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 London region with a requirement for Jest.

1 217 (75.09%) React
2 210 (72.66%) JavaScript
3 181 (62.63%) TypeScript
4 150 (51.90%) Node.js
5 141 (48.79%) CSS
6 138 (47.75%) HTML
7 127 (43.94%) Agile Software Development
8 110 (38.06%) Redux
9 98 (33.91%) Jasmine
10 96 (33.22%) AngularJS
11 92 (31.83%) Cypress.io
12 83 (28.72%) Unit Testing
13 81 (28.03%) AWS
14 77 (26.64%) TDD
15 71 (24.57%) ES6
16 70 (24.22%) Git (software)
17 69 (23.88%) DevOps
18 67 (23.18%) Mocha
19 66 (22.84%) Enzyme
19 66 (22.84%) Front End Development
20 63 (21.80%) Full Stack Development
21 62 (21.45%) User Experience
21 62 (21.45%) Finance
22 61 (21.11%) Azure
23 60 (20.76%) Software Engineering
24 59 (20.42%) webpack
25 56 (19.38%) HTML5
26 55 (19.03%) Docker
27 54 (18.69%) Sass
28 49 (16.96%) Java

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 12 (4.15%) nginx
2 11 (3.81%) CMS
2 11 (3.81%) Confluence
3 6 (2.08%) Headless CMS
3 6 (2.08%) Oracle SOA Suite
4 4 (1.38%) SharePoint
5 3 (1.04%) Apache
5 3 (1.04%) Tomcat
6 2 (0.69%) Adobe Experience Manager
6 2 (0.69%) IIS
7 1 (0.35%) IBM Domino
7 1 (0.35%) Magnolia
Applications
1 8 (2.77%) Photoshop
2 6 (2.08%) Adobe Illustrator
3 4 (1.38%) Chatbot
4 2 (0.69%) Microsoft Office
5 1 (0.35%) Figma
5 1 (0.35%) Zeplin
Business Applications
1 9 (3.11%) Payment Gateway
2 7 (2.42%) Temenos T24
3 1 (0.35%) Magento
3 1 (0.35%) Shopify
Cloud Services
1 81 (28.03%) AWS
2 61 (21.11%) Azure
3 45 (15.57%) Serverless
4 33 (11.42%) npm
5 30 (10.38%) AWS Lambda
6 24 (8.30%) Yarn
7 23 (7.96%) AWS CloudFormation
8 16 (5.54%) GCP
9 10 (3.46%) GitHub
9 10 (3.46%) SaaS
10 8 (2.77%) Amazon EC2
10 8 (2.77%) Azure Functions
11 7 (2.42%) Amazon SQS
11 7 (2.42%) AWS CodeCommit
11 7 (2.42%) Heroku
12 6 (2.08%) Amazon S3
12 6 (2.08%) AWS CodeDeploy
12 6 (2.08%) Stripe
13 4 (1.38%) Microsoft 365
14 3 (1.04%) Datadog
Communications & Networking
1 10 (3.46%) AMQP
2 6 (2.08%) Internet
3 5 (1.73%) HTTP
Database & Business Intelligence
1 22 (7.61%) NoSQL
2 16 (5.54%) PostgreSQL
3 15 (5.19%) Amazon DynamoDB
3 15 (5.19%) MongoDB
4 10 (3.46%) SQL Server
5 8 (2.77%) Relational Database
6 7 (2.42%) SQL Server 2016
6 7 (2.42%) SQL Server 2019
7 5 (1.73%) MySQL
8 4 (1.38%) Amazon RDS
9 2 (0.69%) Amazon Aurora
9 2 (0.69%) Amazon Redshift
9 2 (0.69%) Apache Hive
9 2 (0.69%) Big Data
10 1 (0.35%) Jackrabbit
10 1 (0.35%) SQL Server Integration Services
10 1 (0.35%) SQL Server Reporting Services
Development Applications
1 98 (33.91%) Jasmine
2 92 (31.83%) Cypress.io
3 70 (24.22%) Git (software)
4 67 (23.18%) Mocha
5 59 (20.42%) webpack
6 36 (12.46%) Karma Test Runner
7 32 (11.07%) Jenkins
8 31 (10.73%) Cucumber
9 22 (7.61%) CircleCI
9 22 (7.61%) JIRA
9 22 (7.61%) Selenium
9 22 (7.61%) Storybook
10 18 (6.23%) Protractor
11 15 (5.19%) Grunt
11 15 (5.19%) TeamCity
12 14 (4.84%) ESLint
12 14 (4.84%) JSUnit
13 11 (3.81%) Babel
13 11 (3.81%) GitLab
14 9 (3.11%) Octopus Deploy
General
1 62 (21.45%) Finance
2 48 (16.61%) Social Skills
3 25 (8.65%) Banking
4 20 (6.92%) Analytical Skills
5 18 (6.23%) Front Office
6 13 (4.50%) Games
7 12 (4.15%) Investment Banking
8 7 (2.42%) Back Office
9 6 (2.08%) Inclusion and Diversity
9 6 (2.08%) Presentation Skills
9 6 (2.08%) Retail
9 6 (2.08%) Telecoms
10 5 (1.73%) Documentation Skills
10 5 (1.73%) Public Sector
11 3 (1.04%) Publishing
12 1 (0.35%) Billing
12 1 (0.35%) Law
12 1 (0.35%) Manufacturing
12 1 (0.35%) Multimedia
Job Titles
1 208 (71.97%) Developer
2 84 (29.07%) React Developer
3 69 (23.88%) Front End Developer (Client-Side Developer)
4 45 (15.57%) Senior Developer
5 35 (12.11%) JavaScript Developer
6 31 (10.73%) Angular Developer
6 31 (10.73%) Full Stack Developer
7 26 (9.00%) UI Developer
8 20 (6.92%) Senior React Developer
9 17 (5.88%) Senior Front-End Developer
10 15 (5.19%) Node.js Developer
11 13 (4.50%) Software Engineer
12 12 (4.15%) C# Developer
13 11 (3.81%) Senior JavaScript Developer
14 10 (3.46%) Lead Developer
15 8 (2.77%) HTML Developer
16 7 (2.42%) Front Office Developer
16 7 (2.42%) Programmer
16 7 (2.42%) Senior Programmer
16 7 (2.42%) Tester
Libraries, Frameworks & Software Standards
1 217 (75.09%) React
2 150 (51.90%) Node.js
3 141 (48.79%) CSS
4 138 (47.75%) HTML
5 110 (38.06%) Redux
6 96 (33.22%) AngularJS
7 66 (22.84%) Enzyme
8 56 (19.38%) HTML5
9 54 (18.69%) Sass
10 42 (14.53%) GraphQL
11 38 (13.15%) REST
12 34 (11.76%) RESTful
12 34 (11.76%) RxJS
13 33 (11.42%) Web Services
14 32 (11.07%) .NET
15 29 (10.03%) OAuth
15 29 (10.03%) Vue.js
16 27 (9.34%) Express
17 26 (9.00%) CSS3
18 21 (7.27%) React Native
Miscellaneous
1 62 (21.45%) User Experience
2 23 (7.96%) Greenfield Project
3 18 (6.23%) Data Structures
4 15 (5.19%) Algorithms
5 13 (4.50%) Cloud Native
5 13 (4.50%) Data Protection Act
6 12 (4.15%) Hedge funds
6 12 (4.15%) Mobile App
7 11 (3.81%) Enterprise Software
8 9 (3.11%) Equities
9 6 (2.08%) Graphic Design
10 5 (1.73%) Over-the-Top Content
10 5 (1.73%) Self-Motivation
11 4 (1.38%) Apple TV
11 4 (1.38%) Derivative
11 4 (1.38%) Digital Media
11 4 (1.38%) Online Games
11 4 (1.38%) Virtual Team
11 4 (1.38%) W3C
12 3 (1.04%) Fixed Income
Operating Systems
1 13 (4.50%) Android
2 10 (3.46%) Apple iOS
3 4 (1.38%) Windows
4 2 (0.69%) Linux
4 2 (0.69%) Unix
5 1 (0.35%) tvOS
Processes & Methodologies
1 127 (43.94%) Agile Software Development
2 83 (28.72%) Unit Testing
3 77 (26.64%) TDD
4 69 (23.88%) DevOps
5 66 (22.84%) Front End Development
6 63 (21.80%) Full Stack Development
7 60 (20.76%) Software Engineering
8 47 (16.26%) Test Automation
9 35 (12.11%) Microservices
10 29 (10.03%) Scrum
11 28 (9.69%) Problem-Solving
11 28 (9.69%) Web Development
12 23 (7.96%) Continuous Improvement
12 23 (7.96%) Continuous Integration
12 23 (7.96%) SDLC
13 21 (7.27%) OO
14 20 (6.92%) Artificial Intelligence
15 18 (6.23%) Analytics
15 18 (6.23%) BDD
15 18 (6.23%) Responsive Web Design
Programming Languages
1 210 (72.66%) JavaScript
2 181 (62.63%) TypeScript
3 71 (24.57%) ES6
4 49 (16.96%) Java
5 32 (11.07%) C#
6 25 (8.65%) SQL
7 18 (6.23%) Python
8 9 (3.11%) PHP
9 7 (2.42%) Kotlin
10 5 (1.73%) PL/SQL
11 4 (1.38%) Java 8
12 3 (1.04%) Apple Swift
12 3 (1.04%) MATLAB
13 2 (0.69%) Objective-C
13 2 (0.69%) PowerShell
14 1 (0.35%) C
14 1 (0.35%) Ruby
14 1 (0.35%) Rust
14 1 (0.35%) T-SQL
14 1 (0.35%) XAML
Qualifications
1 8 (2.77%) Degree
1 8 (2.77%) SC Cleared
1 8 (2.77%) Security Cleared
2 2 (0.69%) BPSS Clearance
2 2 (0.69%) ISTQB
2 2 (0.69%) ISTQB Foundation Certification
3 1 (0.35%) AWS Certification
Quality Assurance & Compliance
1 34 (11.76%) Accessibility
2 11 (3.81%) QA
3 2 (0.69%) WCAG
System Software
1 55 (19.03%) Docker
Systems Management
1 23 (7.96%) Kubernetes
2 16 (5.54%) Terraform
3 4 (1.38%) Opscode Chef
4 1 (0.35%) Ansible
Vendors
1 8 (2.77%) Adobe
1 8 (2.77%) MuleSoft
2 7 (2.42%) Temenos
3 6 (2.08%) Microsoft
3 6 (2.08%) Oracle
4 5 (1.73%) Roku
5 4 (1.38%) Apple
5 4 (1.38%) Atlassian
6 3 (1.04%) Splunk
6 3 (1.04%) WorldPay
7 2 (0.69%) Amplitude
7 2 (0.69%) Google
7 2 (0.69%) Nintex
7 2 (0.69%) Xamarin
8 1 (0.35%) hybris
8 1 (0.35%) Perfecto Mobile
8 1 (0.35%) Salesforce.com
8 1 (0.35%) Xerox