Period
to 14 November 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 14 November 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
14 Nov 2018
Same period 2017 Same period 2016
Rank 385 567 632
Rank change year-on-year +182 +65 -20
Contract jobs citing Jest 262 63 5
As % of all contract IT jobs advertised in London 0.56% 0.13% 0.011%
As % of the Libraries, Frameworks & Software Standards category 1.44% 0.36% 0.032%
Number of daily rates quoted 184 50 1
London median daily rate £525 £475 £300
Median daily rate % change year-on-year +10.53% +58.33% -
10th Percentile £405 £406 £250
90th Percentile £638 £538 £350
England median daily rate £500 £458 £391
% change year-on-year +9.29% +16.93% -
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 18,215 17,443 15,682
As % of all contract IT jobs advertised in London 39.17% 37.14% 34.84%
Number of daily rates quoted 13,732 13,318 11,699
London median daily rate £525 £500 £463
Median daily rate % change year-on-year +5.00% +8.11% +2.78%
10th Percentile £370 £350 £315
90th Percentile £675 £650 £625
England median daily rate £475 £463 £425
% change year-on-year +2.70% +8.82% +3.03%
Number of hourly rates quoted 77 105 70
London median hourly rate £42.27 £30.75 £41.13
Median hourly rate % change year-on-year +37.45% -25.23% +15.03%
10th Percentile £19.25 £19.00 £19.21
90th Percentile £67.06 £49.50 £68.75
England median hourly rate £41.53 £40.00 £37.50
% change year-on-year +3.83% +6.67% -

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 14 November 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 14 November 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 -10 40 £525 +10.53% 26
West London +6 13 £525 +16.67% 16
South London - 6 £450 - 1
East London - 2 £475 - 7
Jest
England

For the 6 months to 14 November 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.

1 219 (83.59%) JavaScript
2 165 (62.98%) CSS
3 147 (56.11%) Agile Software Development
4 146 (55.73%) HTML
4 146 (55.73%) Node.js
5 141 (53.82%) React
6 121 (46.18%) ES6
7 119 (45.42%) Enzyme
8 118 (45.04%) Mocha
9 106 (40.46%) TDD
10 99 (37.79%) Git (software)
11 92 (35.11%) Selenium
12 89 (33.97%) Redux
13 85 (32.44%) Amazon AWS
14 74 (28.24%) Test Automation
15 69 (26.34%) webpack
16 68 (25.95%) Java
17 65 (24.81%) Unit Testing
18 64 (24.43%) PostgreSQL
19 63 (24.05%) BDD
19 63 (24.05%) REST
20 61 (23.28%) Docker
21 60 (22.90%) Chai
21 60 (22.90%) Serverless
21 60 (22.90%) Python
22 58 (22.14%) HTML5
23 56 (21.37%) Express
24 55 (20.99%) Software Engineering
25 52 (19.85%) Gatling
26 51 (19.47%) MySQL

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 25 (9.54%) Gunicorn
2 7 (2.67%) Apache Spark
3 6 (2.29%) Elasticsearch
4 5 (1.91%) SharePoint
5 4 (1.53%) Cloud Foundry
6 3 (1.15%) Confluence
6 3 (1.15%) Ethereum
7 2 (0.76%) Apache Solr
7 2 (0.76%) CMS
7 2 (0.76%) Umbraco
8 1 (0.38%) Apache
8 1 (0.38%) JBoss
8 1 (0.38%) Mule
8 1 (0.38%) Tomcat
8 1 (0.38%) WebLogic
Applications
1 4 (1.53%) Photoshop
Business Applications
1 1 (0.38%) Distributed Ledger
Cloud Services
1 85 (32.44%) Amazon AWS
2 60 (22.90%) Serverless
3 46 (17.56%) AWS Lambda
4 24 (9.16%) Microsoft Azure
5 20 (7.63%) npm
6 19 (7.25%) GitHub
7 13 (4.96%) Amazon CloudWatch
8 10 (3.82%) Azure Functions
9 7 (2.67%) Yarn
10 6 (2.29%) BrowserStack
11 5 (1.91%) Apigee
11 5 (1.91%) PaaS
12 4 (1.53%) Amazon Kinesis
13 3 (1.15%) Office 365
14 2 (0.76%) Amazon EC2
14 2 (0.76%) Amazon S3
14 2 (0.76%) Cloud Computing
14 2 (0.76%) Sauce Labs
15 1 (0.38%) Dynamics 365
15 1 (0.38%) Slack
Communications & Networking
1 14 (5.34%) HTTP
2 2 (0.76%) HTTPS
2 2 (0.76%) Kerberos
2 2 (0.76%) SSL
Database & Business Intelligence
1 64 (24.43%) PostgreSQL
2 51 (19.47%) MySQL
3 42 (16.03%) MongoDB
4 29 (11.07%) Relational Database
5 27 (10.31%) Couchbase
6 21 (8.02%) NoSQL
7 11 (4.20%) Apache Cassandra
8 10 (3.82%) Blockchain
9 7 (2.67%) Big Data
9 7 (2.67%) MariaDB
9 7 (2.67%) Redis
10 6 (2.29%) Amazon DynamoDB
10 6 (2.29%) Amazon RDS
11 5 (1.91%) SQL Server
12 4 (1.53%) CouchDB
13 3 (1.15%) Hadoop
13 3 (1.15%) Neo4j
13 3 (1.15%) SQL Server 2016
14 2 (0.76%) Hazelcast
14 2 (0.76%) Sqoop
Development Applications
1 118 (45.04%) Mocha
2 99 (37.79%) Git (software)
3 92 (35.11%) Selenium
4 69 (26.34%) webpack
5 52 (19.85%) Gatling
6 49 (18.70%) Jasmine
7 29 (11.07%) gulp
8 25 (9.54%) Robot Framework
9 22 (8.40%) Grunt
10 19 (7.25%) Babel
10 19 (7.25%) Jenkins
11 18 (6.87%) CircleCI
11 18 (6.87%) Karma Test Runner
12 17 (6.49%) Protractor
13 12 (4.58%) Cucumber
13 12 (4.58%) JIRA
14 9 (3.44%) Subversion
15 8 (3.05%) JUnit
16 6 (2.29%) Sinon.JS
16 6 (2.29%) WebDriver
General
1 40 (15.27%) Finance
2 36 (13.74%) Retail
3 24 (9.16%) Banking
4 11 (4.20%) Games
5 10 (3.82%) Publishing
6 3 (1.15%) Law
7 2 (0.76%) Front Office
8 1 (0.38%) Advertising
8 1 (0.38%) Automotive
8 1 (0.38%) Music Industry
8 1 (0.38%) Telecoms
Job Titles
1 187 (71.37%) Developer
2 86 (32.82%) React Developer
3 52 (19.85%) JavaScript Developer
4 33 (12.60%) Node.js Developer
5 32 (12.21%) Front End Developer (Client-Side Developer)
6 28 (10.69%) Software Engineer
7 26 (9.92%) Senior Developer
8 22 (8.40%) Full Stack Developer
9 15 (5.73%) Senior React Developer
10 14 (5.34%) JavaScript Engineer
11 13 (4.96%) Java Developer
12 12 (4.58%) Python Engineer
13 9 (3.44%) Lead Software Engineer
13 9 (3.44%) Software Developer
14 8 (3.05%) Agile Developer
15 7 (2.67%) Analyst
15 7 (2.67%) Backend Developer
15 7 (2.67%) Lead Developer
15 7 (2.67%) Python Software Engineer
16 6 (2.29%) Automation Tester
Libraries, Frameworks & Software Standards
1 165 (62.98%) CSS
2 146 (55.73%) HTML
2 146 (55.73%) Node.js
3 141 (53.82%) React
4 119 (45.42%) Enzyme
5 89 (33.97%) Redux
6 63 (24.05%) REST
7 60 (22.90%) Chai
8 58 (22.14%) HTML5
9 56 (21.37%) Express
10 51 (19.47%) Sass
11 43 (16.41%) CSS3
11 43 (16.41%) RESTful
12 34 (12.98%) AngularJS
13 27 (10.31%) Django
14 26 (9.92%) koa
15 25 (9.54%) Celery
15 25 (9.54%) Flask
15 25 (9.54%) GraphQL
15 25 (9.54%) pytest
Miscellaneous
1 43 (16.41%) User Experience
2 19 (7.25%) Greenfield Project
3 16 (6.11%) Linux Command Line
4 15 (5.73%) Analytical Skills
5 14 (5.34%) Computer Science
5 14 (5.34%) Video on Demand
6 13 (4.96%) Video\Live Streaming
7 10 (3.82%) Algorithms
7 10 (3.82%) Data Structures
7 10 (3.82%) Mobile App
8 8 (3.05%) Fintech
8 8 (3.05%) Over-the-Top Content
9 5 (1.91%) Self-Motivation
10 4 (1.53%) Foreign Exchange (FX)
11 3 (1.15%) Bitcoin
11 3 (1.15%) Virtual Team
12 2 (0.76%) Animation
12 2 (0.76%) Hedge funds
12 2 (0.76%) Reference Data
12 2 (0.76%) Tandem
Operating Systems
1 28 (10.69%) Linux
2 16 (6.11%) Unix
3 7 (2.67%) Android
4 6 (2.29%) Apple iOS
5 1 (0.38%) VMS
Processes & Methodologies
1 147 (56.11%) Agile Software Development
2 106 (40.46%) TDD
3 74 (28.24%) Test Automation
4 65 (24.81%) Unit Testing
5 63 (24.05%) BDD
6 55 (20.99%) Software Engineering
7 45 (17.18%) Front End Development
8 40 (15.27%) Continuous Integration
9 34 (12.98%) Microservices
10 33 (12.60%) Scrum
11 31 (11.83%) SOA
12 25 (9.54%) Mentoring
13 23 (8.78%) Continuous Delivery
13 23 (8.78%) DevOps
14 20 (7.63%) Problem-Solving
15 19 (7.25%) OO
15 19 (7.25%) Pair Programming
16 17 (6.49%) Open Source
17 16 (6.11%) Coaching
18 15 (5.73%) Decision-Making
Programming Languages
1 219 (83.59%) JavaScript
2 121 (46.18%) ES6
3 68 (25.95%) Java
4 60 (22.90%) Python
5 37 (14.12%) Go
6 30 (11.45%) TypeScript
7 20 (7.63%) SQL
8 12 (4.58%) C#
9 10 (3.82%) ES7
10 8 (3.05%) JSX
11 4 (1.53%) ES8
12 3 (1.15%) Java 8
12 3 (1.15%) VB.NET
13 2 (0.76%) Bash Shell
13 2 (0.76%) CQL
13 2 (0.76%) Groovy
13 2 (0.76%) PHP
14 1 (0.38%) Scala
14 1 (0.38%) Solidity
Qualifications
1 15 (5.73%) Degree
2 2 (0.76%) Computer Science Degree
3 1 (0.38%) Numerate Degree
3 1 (0.38%) OCPJP
Quality Assurance & Compliance
1 31 (11.83%) QA
2 2 (0.76%) WCAG
System Software
1 61 (23.28%) Docker
2 4 (1.53%) Apache ZooKeeper
3 2 (0.76%) HDFS
3 2 (0.76%) Virtual Machines
Systems Management
1 27 (10.31%) Terraform
2 15 (5.73%) Ansible
3 10 (3.82%) Kubernetes
4 2 (0.76%) Hadoop YARN
4 2 (0.76%) Oozie
5 1 (0.38%) Docker Swarm
5 1 (0.38%) Opscode Chef
5 1 (0.38%) Puppet
Vendors
1 14 (5.34%) Splunk
2 12 (4.58%) Cypress Semiconductor
3 5 (1.91%) Microsoft
4 4 (1.53%) Adobe
4 4 (1.53%) Google
5 3 (1.15%) Oracle
6 2 (0.76%) Facebook
6 2 (0.76%) IBM
6 2 (0.76%) Perfecto Mobile
6 2 (0.76%) Salesforce.com
6 2 (0.76%) SmartCo
6 2 (0.76%) TOWER Software
7 1 (0.38%) AppDynamics
7 1 (0.38%) Apple
7 1 (0.38%) webMethods