Period
to 19 February 2020

The following table provides summary statistics for contract job vacancies advertised in Central 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 2020 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
London > Central London
6 months to
19 Feb 2020
Same period 2019 Same period 2018
Rank 182 214 247
Rank change year-on-year +32 +33 -
Contract jobs citing Jest 43 77 36
As % of all contract IT jobs advertised in Central London 0.72% 0.86% 0.40%
As % of the Libraries, Frameworks & Software Standards category 2.07% 2.14% 1.06%
Number of daily rates quoted 23 60 33
Central London median daily rate £450 £550 £475
Median daily rate % change year-on-year -18.18% +15.79% -
10th Percentile £413 £424 £425
90th Percentile £575 £639 £575
London median daily rate £525 £525 £475
% change year-on-year - +10.53% +15.85%
Number of hourly rates quoted 0 0 0
Central London median hourly rate - - -
London 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 Central London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Central London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2,077 3,598 3,410
As % of all contract IT jobs advertised in Central London 34.84% 40.16% 38.33%
Number of daily rates quoted 1,616 2,893 2,861
Central London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £376 £400 £363
90th Percentile £675 £650 £650
London median daily rate £525 £525 £500
% change year-on-year - +5.00% +5.26%
Number of hourly rates quoted 10 4 14
Central London median hourly rate £35.00 £27.00 £24.30
Median hourly rate % change year-on-year +29.63% +11.13% -55.21%
10th Percentile £24.50 £15.35 £20.75
90th Percentile £65.00 £81.03 £151.50
London median hourly rate £47.83 £36.00 £33.54
% change year-on-year +32.86% +7.33% -25.47%

Jest
Job Vacancy Trend in Central London

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

Job vacancy trend for Jest in Central London

Jest
Contractor Daily Rate Trend in Central London

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

Contractor daily rate trend for Jest in Central London

Jest
Contractor Daily Rate Histogram in Central London

The daily rate distribution of IT jobs citing Jest in Central London over the 6 months to 19 February 2020.

Contractor daily rate histogram for Jest in Central London

Jest
Contract Job Locations in Central 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 Central London region over the 6 months to 19 February 2020. 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
City of London +39 26 £481 -12.50% 30
City of Westminster - 1 - -
Jest
London

For the 6 months to 19 February 2020, 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 Central London region with a requirement for Jest.

1 34 (79.07%) JavaScript
2 31 (72.09%) React
3 29 (67.44%) CSS
4 27 (62.79%) Redux
5 26 (60.47%) Node.js
6 20 (46.51%) TypeScript
6 20 (46.51%) Agile Software Development
7 19 (44.19%) User Experience
7 19 (44.19%) Azure
8 18 (41.86%) ES6
9 17 (39.53%) TDD
10 16 (37.21%) AWS
10 16 (37.21%) webpack
11 15 (34.88%) Docker
11 15 (34.88%) HTML
12 14 (32.56%) SQL
12 14 (32.56%) GCP
12 14 (32.56%) API Design
13 13 (30.23%) GraphQL
13 13 (30.23%) Problem-Solving
13 13 (30.23%) Test Automation
14 12 (27.91%) Git (software)
14 12 (27.91%) Finance
14 12 (27.91%) Kubernetes
14 12 (27.91%) Terraform
15 11 (25.58%) OOD
15 11 (25.58%) OO
15 11 (25.58%) Computer Science
15 11 (25.58%) NoSQL
15 11 (25.58%) Heroku

Jest
Co-occurring IT Skills in Central 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 8 (18.60%) Confluence
2 2 (4.65%) CMS
2 2 (4.65%) Drupal
2 2 (4.65%) Elasticsearch
3 1 (2.33%) Apache
3 1 (2.33%) nginx
3 1 (2.33%) Oracle Workflow
Applications
1 4 (9.30%) Zeplin
Cloud Services
1 19 (44.19%) Azure
2 16 (37.21%) AWS
3 14 (32.56%) GCP
4 11 (25.58%) Heroku
5 4 (9.30%) GitHub
6 3 (6.98%) npm
6 3 (6.98%) PaaS
6 3 (6.98%) Serverless
7 2 (4.65%) Datadog
7 2 (4.65%) Firebase
8 1 (2.33%) Akamai
8 1 (2.33%) Amazon ECS
8 1 (2.33%) Amazon SQS
8 1 (2.33%) AWS Lambda
8 1 (2.33%) CloudFront
8 1 (2.33%) Fastly
8 1 (2.33%) SaaS
8 1 (2.33%) Yarn
Database & Business Intelligence
1 11 (25.58%) NoSQL
2 6 (13.95%) MySQL
3 4 (9.30%) RDBMS
3 4 (9.30%) Relational Database
4 3 (6.98%) Azure SQL Database
4 3 (6.98%) MongoDB
5 2 (4.65%) SQL Server
6 1 (2.33%) Amazon DynamoDB
6 1 (2.33%) MariaDB
6 1 (2.33%) Redis
Development Applications
1 16 (37.21%) webpack
2 12 (27.91%) Git (software)
3 10 (23.26%) JIRA
4 5 (11.63%) Cypress.io
5 4 (9.30%) Mocha
5 4 (9.30%) SpecFlow
6 3 (6.98%) gulp
6 3 (6.98%) Jasmine
6 3 (6.98%) Jenkins
7 2 (4.65%) Babel
7 2 (4.65%) CircleCI
7 2 (4.65%) TeamCity
8 1 (2.33%) Atlassian Bamboo
8 1 (2.33%) Cucumber
8 1 (2.33%) JMeter
8 1 (2.33%) Karma Test Runner
8 1 (2.33%) Moq
8 1 (2.33%) Octopus Deploy
8 1 (2.33%) PHPUnit
8 1 (2.33%) Selenium
General
1 12 (27.91%) Finance
2 3 (6.98%) Retail
3 1 (2.33%) Law
3 1 (2.33%) Public Sector
Job Titles
1 37 (86.05%) Developer
2 15 (34.88%) Senior Developer
3 10 (23.26%) Digital Developer
3 10 (23.26%) Node.js Developer
4 6 (13.95%) Azure Developer
4 6 (13.95%) Front End Developer (Client-Side Developer)
4 6 (13.95%) Full Stack Developer
4 6 (13.95%) React Developer
5 5 (11.63%) UI Developer
6 3 (6.98%) .NET Developer
6 3 (6.98%) MySQL Developer
6 3 (6.98%) Senior UI Developer
7 2 (4.65%) .NET Developer - Fintech
7 2 (4.65%) Angular Developer
7 2 (4.65%) Azure DevOps
7 2 (4.65%) Drupal Developer
7 2 (4.65%) JavaScript Developer
7 2 (4.65%) Senior Full Stack Developer
7 2 (4.65%) Senior React Developer
7 2 (4.65%) Software Developer
Libraries, Frameworks & Software Standards
1 31 (72.09%) React
2 29 (67.44%) CSS
3 27 (62.79%) Redux
4 26 (60.47%) Node.js
5 15 (34.88%) HTML
6 13 (30.23%) GraphQL
7 11 (25.58%) HTML5
8 10 (23.26%) CSS3
8 10 (23.26%) RESTful
9 8 (18.60%) Sass
10 7 (16.28%) Express
10 7 (16.28%) Web Services
11 5 (11.63%) .NET
11 5 (11.63%) AngularJS
12 4 (9.30%) Enzyme
13 3 (6.98%) Chai
13 3 (6.98%) LESS
13 3 (6.98%) REST
14 2 (4.65%) Mustache
14 2 (4.65%) OAuth
Miscellaneous
1 19 (44.19%) User Experience
2 11 (25.58%) Algorithms
2 11 (25.58%) Analytical Skills
2 11 (25.58%) Data Structures
3 2 (4.65%) Web 2.0
4 1 (2.33%) Greenfield Project
4 1 (2.33%) Hedge funds
4 1 (2.33%) Public Cloud
Operating Systems
1 4 (9.30%) Linux
Processes & Methodologies
1 20 (46.51%) Agile Software Development
2 17 (39.53%) TDD
3 14 (32.56%) API Design
4 13 (30.23%) Problem-Solving
4 13 (30.23%) Test Automation
5 11 (25.58%) Computer Science
5 11 (25.58%) OO
5 11 (25.58%) OOD
6 10 (23.26%) Scrum
7 8 (18.60%) Front End Development
8 7 (16.28%) E-Commerce
9 6 (13.95%) SDLC
10 5 (11.63%) Functional Testing
10 5 (11.63%) Kanban
10 5 (11.63%) Responsive Web Design
11 4 (9.30%) BDD
11 4 (9.30%) DevOps
11 4 (9.30%) Fintech
11 4 (9.30%) MVC
11 4 (9.30%) Pair Programming
Programming Languages
1 34 (79.07%) JavaScript
2 20 (46.51%) TypeScript
3 18 (41.86%) ES6
4 14 (32.56%) SQL
5 5 (11.63%) C#
6 4 (9.30%) PHP
7 3 (6.98%) Java
8 2 (4.65%) Bash Shell
8 2 (4.65%) Perl
8 2 (4.65%) Shell Script
9 1 (2.33%) ES7
Quality Assurance & Compliance
1 5 (11.63%) QA
System Software
1 15 (34.88%) Docker
2 1 (2.33%) Varnish
Systems Management
1 12 (27.91%) Kubernetes
1 12 (27.91%) Terraform
2 1 (2.33%) Ansible
2 1 (2.33%) Kibana
Vendors
1 7 (16.28%) Atlassian
2 3 (6.98%) Google
3 1 (2.33%) New Relic
3 1 (2.33%) Oracle
3 1 (2.33%) Splunk