Period
to 13 December 2018

The following table provides summary statistics for permanent job vacancies 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 13 December 2018 with a comparison to the same period in the previous 2 years.

Jest
UK
6 months to
13 Dec 2018
Same period 2017 Same period 2016
Rank 791 1105 1207
Rank change year-on-year +314 +102 +92
Permanent jobs citing Jest 352 99 21
As % of all permanent IT jobs advertised in the UK 0.22% 0.055% 0.011%
As % of the Libraries, Frameworks & Software Standards category 0.56% 0.14% 0.029%
Number of salaries quoted 269 90 19
UK median annual salary £62,500 £56,250 £62,500
Median salary % change year-on-year +11.11% -10.00% -10.71%
10th Percentile £39,750 £32,375 £32,500
90th Percentile £90,000 £81,625 £72,000
UK excluding London median annual salary £50,000 £39,000 £35,000
% change year-on-year +28.21% +11.43% -

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 with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 63,063 72,051 72,420
As % of all permanent IT jobs advertised in the UK 39.49% 40.10% 39.18%
Number of salaries quoted 51,838 60,028 62,707
UK median annual salary £52,500 £50,000 £47,500
Median salary % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £31,250 £29,750 £28,750
90th Percentile £83,750 £77,500 £77,500
UK excluding London median annual salary £45,000 £42,500 £42,500
% change year-on-year +5.88% - +6.25%

Jest
Job Vacancy Trend

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

Job vacancy trend for Jest in the UK

Jest
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Jest.

Salary trend for Jest in the UK

Jest
Salary Histogram

The salary distribution of IT jobs citing Jest over the 6 months to 13 December 2018.

Salary histogram for Jest in the UK

Jest
Top 15 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Jest within the UK over the 6 months to 13 December 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +291 338 £62,500 +4.17% 96
London +237 250 £65,000 - 65
UK excluding London +119 94 £50,000 +28.21% 33
South East +62 49 £50,000 +5.26% 15
North of England +61 29 £52,500 +123.40% 11
North West +33 17 £52,500 +31.25% 10
Yorkshire +41 10 £65,000 +176.60% 1
Midlands +37 6 £45,000 -2.70% 3
West Midlands +19 5 £45,000 -5.26% 2
Wales +3 4 £40,000 +5.26% 2
East of England +33 3 £65,000 -
Scotland +2 2 £40,000 +5.26%
North East +1 2 - -
South West - 2 £47,500 - 2
East Midlands +21 1 £25,500 -27.14% 1

For the 6 months to 13 December 2018, 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 with a requirement for Jest.

1 258 (73.30%) JavaScript
2 199 (56.53%) CSS
3 193 (54.83%) React
4 176 (50.00%) HTML
5 173 (49.15%) Node.js
6 172 (48.86%) Mocha
6 172 (48.86%) Front End Development
7 169 (48.01%) Redux
8 164 (46.59%) AngularJS
9 158 (44.89%) webpack
9 158 (44.89%) Agile Software Development
10 157 (44.60%) ES6
11 135 (38.35%) Git (software)
12 127 (36.08%) Sass
13 126 (35.80%) Enzyme
14 118 (33.52%) TDD
15 100 (28.41%) CSS3
16 93 (26.42%) Finance
17 92 (26.14%) gulp
18 91 (25.85%) Test Automation
18 91 (25.85%) HTML5
19 89 (25.28%) Chai
20 84 (23.86%) Unit Testing
21 80 (22.73%) Amazon AWS
22 79 (22.44%) TypeScript
23 78 (22.16%) Jasmine
24 77 (21.88%) Docker
24 77 (21.88%) npm
25 71 (20.17%) Vue.js
25 71 (20.17%) User Experience

Jest
Co-occurring IT Skills 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 30 (8.52%) Ethereum
2 15 (4.26%) Elasticsearch
3 13 (3.69%) Confluence
4 6 (1.70%) Cloud Foundry
4 6 (1.70%) Mule
4 6 (1.70%) Tomcat
5 5 (1.42%) Apache Spark
5 5 (1.42%) WordPress
6 3 (0.85%) CMS
6 3 (0.85%) WebSphere
6 3 (0.85%) WebSphere Application Server
7 2 (0.57%) Apache
7 2 (0.57%) Drupal
8 1 (0.28%) Apache Solr
Applications
1 1 (0.28%) Adobe Illustrator
1 1 (0.28%) Chatbot
1 1 (0.28%) Photoshop
Business Applications
1 2 (0.57%) Distributed Ledger
Cloud Services
1 80 (22.73%) Amazon AWS
2 77 (21.88%) npm
3 62 (17.61%) Microsoft Azure
4 59 (16.76%) GitHub
5 43 (12.22%) Amazon S3
5 43 (12.22%) Serverless
6 31 (8.81%) Amazon EC2
7 27 (7.67%) Cloud Computing
8 22 (6.25%) AWS Lambda
9 20 (5.68%) SaaS
10 16 (4.55%) Yarn
11 13 (3.69%) PaaS
12 11 (3.13%) Slack
13 6 (1.70%) Google Cloud Platform
13 6 (1.70%) IaaS
14 5 (1.42%) AWS CloudFormation
14 5 (1.42%) CloudFront
14 5 (1.42%) Heroku
14 5 (1.42%) IBM Cloud
14 5 (1.42%) Sumo Logic
Communications & Networking
1 3 (0.85%) HTTP
2 1 (0.28%) Internet
2 1 (0.28%) Skype
2 1 (0.28%) SMS
Database & Business Intelligence
1 48 (13.64%) Blockchain
2 44 (12.50%) MySQL
3 43 (12.22%) NoSQL
4 42 (11.93%) PostgreSQL
5 38 (10.80%) Redis
6 22 (6.25%) MongoDB
7 17 (4.83%) Relational Database
8 11 (3.13%) SQL Server
9 10 (2.84%) Amazon DynamoDB
10 8 (2.27%) Apache Cassandra
10 8 (2.27%) Hadoop
11 5 (1.42%) Big Data
12 2 (0.57%) Hazelcast
13 1 (0.28%) BigQuery
13 1 (0.28%) Cosmos DB
13 1 (0.28%) Data Warehouse
13 1 (0.28%) SQL Server 2014
Development Applications
1 172 (48.86%) Mocha
2 158 (44.89%) webpack
3 135 (38.35%) Git (software)
4 92 (26.14%) gulp
5 78 (22.16%) Jasmine
6 62 (17.61%) Selenium
7 56 (15.91%) Jenkins
8 50 (14.20%) JIRA
9 43 (12.22%) Grunt
10 36 (10.23%) Karma Test Runner
11 30 (8.52%) Babel
12 24 (6.82%) GitLab
13 22 (6.25%) Bitbucket
14 20 (5.68%) Cucumber
14 20 (5.68%) Travis CI
15 17 (4.83%) JUnit
16 16 (4.55%) Protractor
16 16 (4.55%) TeamCity
17 13 (3.69%) Sinon.JS
18 11 (3.13%) Mockito
General
1 93 (26.42%) Finance
2 48 (13.64%) Banking
3 44 (12.50%) Games
4 38 (10.80%) Retail
5 27 (7.67%) Telecoms
6 21 (5.97%) Automotive
7 7 (1.99%) Publishing
8 5 (1.42%) Advertising
8 5 (1.42%) Front Office
9 4 (1.14%) Manufacturing
10 3 (0.85%) Investment Banking
10 3 (0.85%) Law
11 1 (0.28%) Marketing
11 1 (0.28%) Private Banking
Job Titles
1 260 (73.86%) Developer
2 103 (29.26%) Front End Developer (Client-Side Developer)
3 76 (21.59%) JavaScript Developer
4 74 (21.02%) React Developer
5 73 (20.74%) Senior Developer
6 29 (8.24%) Angular Developer
6 29 (8.24%) Blockchain Developer
7 28 (7.95%) Software Engineer
8 26 (7.39%) Node.js Developer
9 24 (6.82%) Senior React Developer
10 23 (6.53%) Senior Front-End Developer
11 22 (6.25%) Senior JavaScript Developer
12 19 (5.40%) Backend Developer
13 18 (5.11%) JavaScript Engineer
14 17 (4.83%) Full Stack Developer
15 15 (4.26%) Lead Developer
16 14 (3.98%) Senior Backend Developer
16 14 (3.98%) Software Developer
16 14 (3.98%) Web Developer
17 12 (3.41%) HTML Developer
Libraries, Frameworks & Software Standards
1 199 (56.53%) CSS
2 193 (54.83%) React
3 176 (50.00%) HTML
4 173 (49.15%) Node.js
5 169 (48.01%) Redux
6 164 (46.59%) AngularJS
7 127 (36.08%) Sass
8 126 (35.80%) Enzyme
9 100 (28.41%) CSS3
10 91 (25.85%) HTML5
11 89 (25.28%) Chai
12 71 (20.17%) Vue.js
13 51 (14.49%) React Native
14 49 (13.92%) LESS
14 49 (13.92%) REST
15 36 (10.23%) Express
15 36 (10.23%) RESTful
16 30 (8.52%) Twitter Bootstrap
17 29 (8.24%) Smart Contracts
17 29 (8.24%) web3js
Miscellaneous
1 71 (20.17%) User Experience
2 44 (12.50%) Mobile App
3 29 (8.24%) Bitcoin
3 29 (8.24%) Greenfield Project
4 15 (4.26%) Fintech
5 11 (3.13%) Data Structures
6 9 (2.56%) Algorithms
6 9 (2.56%) Analytical Skills
6 9 (2.56%) Self-Motivation
7 7 (1.99%) Enterprise Software
8 5 (1.42%) Blog
8 5 (1.42%) Online Banking
8 5 (1.42%) Online Gambling
9 4 (1.14%) Augmented Reality
9 4 (1.14%) Tandem
10 3 (0.85%) iPhone
11 2 (0.57%) Clustering
12 1 (0.28%) Cloud Native
12 1 (0.28%) Grid Computing
12 1 (0.28%) Hedge funds
Operating Systems
1 47 (13.35%) Linux
2 27 (7.67%) VMS
3 12 (3.41%) Android
4 7 (1.99%) Apple iOS
5 5 (1.42%) Ubuntu
6 2 (0.57%) Unix
6 2 (0.57%) Windows
7 1 (0.28%) Windows Server
Processes & Methodologies
1 172 (48.86%) Front End Development
2 158 (44.89%) Agile Software Development
3 118 (33.52%) TDD
4 91 (25.85%) Test Automation
5 84 (23.86%) Unit Testing
6 60 (17.05%) Software Engineering
7 59 (16.76%) BDD
7 59 (16.76%) Scrum
8 47 (13.35%) Continuous Integration
9 41 (11.65%) MVC
10 40 (11.36%) Microservices
11 38 (10.80%) Computer Science
12 34 (9.66%) DevOps
13 33 (9.38%) API Design
13 33 (9.38%) Web Development
14 32 (9.09%) Problem-Solving
15 31 (8.81%) API Development
16 27 (7.67%) E-Commerce
17 26 (7.39%) Kanban
18 20 (5.68%) MVVM
Programming Languages
1 258 (73.30%) JavaScript
2 157 (44.60%) ES6
3 79 (22.44%) TypeScript
4 67 (19.03%) Java
5 43 (12.22%) SQL
6 36 (10.23%) Python
7 31 (8.81%) C#
7 31 (8.81%) PHP
8 29 (8.24%) Solidity
9 26 (7.39%) ES7
10 20 (5.68%) Go
11 19 (5.40%) Ruby
12 16 (4.55%) Scala
13 14 (3.98%) Apple Swift
13 14 (3.98%) C++
13 14 (3.98%) Elixir
13 14 (3.98%) Haskell
13 14 (3.98%) Lua
13 14 (3.98%) Objective-C
13 14 (3.98%) Rust
Qualifications
1 29 (8.24%) Degree
2 6 (1.70%) Computer Science Degree
3 1 (0.28%) BPSS Clearance
Quality Assurance & Compliance
1 24 (6.82%) QA
2 1 (0.28%) WCAG
System Software
1 77 (21.88%) Docker
2 27 (7.67%) Virtual Machines
Systems Management
1 42 (11.93%) Kubernetes
2 27 (7.67%) Docker Swarm
3 7 (1.99%) Terraform
4 5 (1.42%) HAProxy
4 5 (1.42%) Packer
5 3 (0.85%) Opscode Chef
6 2 (0.57%) Hadoop YARN
7 1 (0.28%) Consul
7 1 (0.28%) Grafana
Vendors
1 27 (7.67%) Cypress Semiconductor
2 14 (3.98%) Microsoft
3 13 (3.69%) Google
4 8 (2.27%) IBM
4 8 (2.27%) Splunk
5 6 (1.70%) AppDynamics
6 5 (1.42%) Rackspace
7 4 (1.14%) Apple
8 3 (0.85%) Oracle
9 1 (0.28%) Mapbox
9 1 (0.28%) New Relic
9 1 (0.28%) Peoplefluent