Period
to 28 July 2021

The following table provides summary statistics for permanent job vacancies advertised in 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 28 July 2021 with a comparison to the same period in the previous 2 years.

Jest
England > London
6 months to
28 Jul 2021
Same period 2020 Same period 2019
Rank 187 293 494
Rank change year-on-year +106 +201 +73
Permanent jobs citing Jest 941 288 280
As % of all permanent jobs advertised in London 2.09% 1.00% 0.49%
As % of the Libraries, Frameworks & Software Standards category 4.38% 2.36% 1.26%
Number of salaries quoted 334 249 233
10th Percentile £47,000 £48,500 £43,750
25th Percentile £55,000 £55,000 £51,250
Median annual salary (50th Percentile) £65,250 £75,000 £65,000
Median % change year-on-year -13.00% +15.38% -7.14%
75th Percentile £85,000 £88,750 £77,500
90th Percentile £97,500 £100,250 £90,000
England median annual salary £62,500 £62,500 £60,000
% change year-on-year - +4.17% -

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

All Software Libraries and Frameworks
London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 21,484 12,216 22,252
As % of all permanent IT jobs advertised in London 47.74% 42.32% 38.90%
Number of salaries quoted 12,604 10,209 18,815
10th Percentile £45,000 £45,000 £40,000
25th Percentile £55,000 £53,931 £50,000
Median annual salary (50th Percentile) £72,500 £70,000 £67,500
Median % change year-on-year +3.57% +3.70% +8.00%
75th Percentile £90,000 £87,500 £85,000
90th Percentile £108,750 £107,500 £97,500
England median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% +10.00%

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
Salary Trend in London

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

Salary trend for Jest in London

Jest
Salary Histogram in London

Salary distribution for jobs citing Jest in London over the 6 months to 28 July 2021.

Salary histogram for Jest in London

Jest
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Jest within the London region over the 6 months to 28 July 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -26 37 £62,500 -16.67% 28
West London -20 14 - - 8
South London +4 11 £60,000 - 3
East London - 1 £50,000 - 8
Jest
England

For the 6 months to 28 July 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 London region with a requirement for Jest.

1 773 (82.15%) React
2 671 (71.31%) JavaScript
3 545 (57.92%) TypeScript
4 519 (55.15%) Node.js
5 491 (52.18%) Agile Software Development
6 464 (49.31%) CSS
7 366 (38.89%) HTML
7 366 (38.89%) Front End Development
8 358 (38.04%) Cypress.io
9 354 (37.62%) Git (software)
10 346 (36.77%) Software Engineering
11 326 (34.64%) AWS
12 309 (32.84%) Redux
13 302 (32.09%) User Experience
14 263 (27.95%) TDD
15 256 (27.21%) AngularJS
16 243 (25.82%) Full Stack Development
17 240 (25.50%) Docker
18 235 (24.97%) GraphQL
19 232 (24.65%) webpack
20 214 (22.74%) REST
21 213 (22.64%) Sass
22 208 (22.10%) Test Automation
23 194 (20.62%) Microservices
24 190 (20.19%) Unit Testing
25 187 (19.87%) PostgreSQL
25 187 (19.87%) ES6
26 182 (19.34%) Social Skills
27 180 (19.13%) Vue.js
28 176 (18.70%) React Native

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 50 (5.31%) CMS
2 45 (4.78%) Confluence
3 18 (1.91%) Elasticsearch
4 17 (1.81%) Apache Spark
5 12 (1.28%) Kentico
6 8 (0.85%) Drupal
7 7 (0.74%) IIS
8 4 (0.43%) Adobe Experience Manager
8 4 (0.43%) Headless CMS
8 4 (0.43%) Oracle SOA Suite
9 3 (0.32%) Apache Solr
9 3 (0.32%) Magnolia
9 3 (0.32%) Tomcat
10 1 (0.11%) Apache
Applications
1 21 (2.23%) Sketch
2 14 (1.49%) InVision
3 13 (1.38%) Figma
4 9 (0.96%) UXPin
5 8 (0.85%) Zeplin
6 6 (0.64%) Adobe Premiere
6 6 (0.64%) Final Cut Pro
6 6 (0.64%) Photoshop
7 5 (0.53%) AutoCAD
7 5 (0.53%) Revit
8 2 (0.21%) Adobe Creative Suite
8 2 (0.21%) Adobe Illustrator
8 2 (0.21%) Fireworks
Business Applications
1 1 (0.11%) Dynamics CRM
1 1 (0.11%) Sentinel
Cloud Services
1 326 (34.64%) AWS
2 151 (16.05%) GitHub
3 150 (15.94%) Azure
4 111 (11.80%) Serverless
5 108 (11.48%) SaaS
6 80 (8.50%) GCP
7 68 (7.23%) AWS Lambda
8 66 (7.01%) Amazon S3
9 57 (6.06%) npm
10 52 (5.53%) Slack
11 44 (4.68%) Amazon EKS
12 38 (4.04%) Amazon SQS
13 33 (3.51%) AWS Fargate
14 28 (2.98%) AWS CloudFormation
15 26 (2.76%) AWS Elastic Beanstalk
16 25 (2.66%) Heroku
17 24 (2.55%) Amazon EC2
18 22 (2.34%) CloudFront
19 21 (2.23%) Amazon Cognito
19 21 (2.23%) Azure Active Directory
Communications & Networking
1 26 (2.76%) HTTP
2 7 (0.74%) Internet
2 7 (0.74%) Network Security
3 4 (0.43%) MQTT
4 3 (0.32%) SMS
5 2 (0.21%) Intranet
5 2 (0.21%) SSH
6 1 (0.11%) Broadband
Database & Business Intelligence
1 187 (19.87%) PostgreSQL
2 104 (11.05%) NoSQL
3 70 (7.44%) MongoDB
4 69 (7.33%) Relational Database
5 67 (7.12%) Amazon DynamoDB
5 67 (7.12%) MySQL
6 41 (4.36%) Amazon Redshift
7 38 (4.04%) Redis
8 36 (3.83%) SQL Server
9 34 (3.61%) Amazon RDS
10 23 (2.44%) BigQuery
11 18 (1.91%) RDBMS
12 15 (1.59%) Amazon Aurora
12 15 (1.59%) Big Data
12 15 (1.59%) Presto
13 10 (1.06%) MariaDB
14 7 (0.74%) Data Warehouse
14 7 (0.74%) SQL Server 2012
14 7 (0.74%) SQL Server Reporting Services
15 5 (0.53%) NewSQL
Development Applications
1 358 (38.04%) Cypress.io
2 354 (37.62%) Git (software)
3 232 (24.65%) webpack
4 140 (14.88%) Jasmine
5 133 (14.13%) Mocha
6 91 (9.67%) CircleCI
6 91 (9.67%) Storybook
7 77 (8.18%) Babel
8 76 (8.08%) JIRA
9 73 (7.76%) Jenkins
10 67 (7.12%) gulp
11 58 (6.16%) GitLab
12 54 (5.74%) JUnit
13 48 (5.10%) Karma Test Runner
14 45 (4.78%) Octopus Deploy
15 42 (4.46%) TeamCity
16 36 (3.83%) Selenium
17 32 (3.40%) Grunt
18 31 (3.29%) NUnit
19 26 (2.76%) EasyMock
General
1 182 (19.34%) Social Skills
2 157 (16.68%) Finance
3 107 (11.37%) Marketing
4 83 (8.82%) Retail
5 67 (7.12%) Games
6 32 (3.40%) Banking
7 29 (3.08%) Analytical Skills
8 20 (2.13%) Advertising
8 20 (2.13%) Telecoms
9 18 (1.91%) Financial Institution
10 17 (1.81%) Back Office
11 16 (1.70%) Inclusion and Diversity
12 14 (1.49%) Public Sector
13 13 (1.38%) Pharmaceutical
14 10 (1.06%) Organisational Skills
15 8 (0.85%) Presentation Skills
16 7 (0.74%) Brand Awareness
16 7 (0.74%) Publishing
17 6 (0.64%) Electronics
17 6 (0.64%) Manufacturing
Job Titles
1 430 (45.70%) Developer
2 234 (24.87%) Front End Developer (Client-Side Developer)
3 137 (14.56%) Software Engineer
4 110 (11.69%) React Developer
5 82 (8.71%) Senior Developer
6 65 (6.91%) Full Stack Developer
7 54 (5.74%) Senior Software Engineer
8 39 (4.14%) JavaScript Developer
9 38 (4.04%) Senior Front-End Developer
10 35 (3.72%) Senior React Developer
10 35 (3.72%) Software Developer
11 29 (3.08%) Python Engineer
12 20 (2.13%) .NET Developer
12 20 (2.13%) JavaScript Engineer
13 19 (2.02%) Angular Developer
13 19 (2.02%) DevOps Engineer
14 17 (1.81%) Java Engineer
14 17 (1.81%) Lead Developer
15 16 (1.70%) Release Manager
15 16 (1.70%) Senior Java Engineer
Libraries, Frameworks & Software Standards
1 773 (82.15%) React
2 519 (55.15%) Node.js
3 464 (49.31%) CSS
4 366 (38.89%) HTML
5 309 (32.84%) Redux
6 256 (27.21%) AngularJS
7 235 (24.97%) GraphQL
8 214 (22.74%) REST
9 213 (22.64%) Sass
10 180 (19.13%) Vue.js
11 176 (18.70%) React Native
12 175 (18.60%) HTML5
13 153 (16.26%) CSS3
14 148 (15.73%) Enzyme
15 130 (13.82%) RESTful
16 113 (12.01%) .NET
17 112 (11.90%) Next.js
18 105 (11.16%) Web Services
19 94 (9.99%) LESS
20 71 (7.55%) Kafka
Miscellaneous
1 302 (32.09%) User Experience
2 84 (8.93%) Mobile App
3 53 (5.63%) Virtual Team
4 47 (4.99%) Greenfield Project
5 38 (4.04%) Self-Motivation
6 33 (3.51%) Video\Live Streaming
7 32 (3.40%) Enterprise Software
8 23 (2.44%) Augmented Reality
9 21 (2.23%) Social Network
10 16 (1.70%) Algorithms
10 16 (1.70%) Legacy Applications
10 16 (1.70%) Legacy Code
10 16 (1.70%) W3C
10 16 (1.70%) Wiki
11 15 (1.59%) Management Information System
12 14 (1.49%) Pricing Data
13 13 (1.38%) Video on Demand
13 13 (1.38%) Xbox
14 12 (1.28%) Data Structures
15 8 (0.85%) Blog
Operating Systems
1 83 (8.82%) Android
2 79 (8.40%) Apple iOS
3 25 (2.66%) Windows
4 12 (1.28%) Linux
5 7 (0.74%) tvOS
Processes & Methodologies
1 491 (52.18%) Agile Software Development
2 366 (38.89%) Front End Development
3 346 (36.77%) Software Engineering
4 263 (27.95%) TDD
5 243 (25.82%) Full Stack Development
6 208 (22.10%) Test Automation
7 194 (20.62%) Microservices
8 190 (20.19%) Unit Testing
9 159 (16.90%) Scrum
10 153 (16.26%) Continuous Integration
11 152 (16.15%) DevOps
12 136 (14.45%) Mentoring
13 108 (11.48%) Problem-Solving
14 100 (10.63%) Responsive Web Design
15 98 (10.41%) Computer Science
16 97 (10.31%) E-Commerce
17 93 (9.88%) Pair Programming
18 87 (9.25%) Machine Learning
19 85 (9.03%) Fintech
19 85 (9.03%) Open Source
Programming Languages
1 671 (71.31%) JavaScript
2 545 (57.92%) TypeScript
3 187 (19.87%) ES6
4 153 (16.26%) SQL
5 133 (14.13%) Java
5 133 (14.13%) Python
6 96 (10.20%) C#
7 65 (6.91%) Go
8 41 (4.36%) PHP
9 35 (3.72%) Kotlin
10 25 (2.66%) PowerShell
11 24 (2.55%) ES7
11 24 (2.55%) Ruby
11 24 (2.55%) Scala
12 21 (2.23%) Apple Swift
13 19 (2.02%) Objective-C
14 18 (1.91%) C
15 11 (1.17%) PHP 7
16 10 (1.06%) Dart
16 10 (1.06%) ES8
Qualifications
1 112 (11.90%) Degree
2 43 (4.57%) Computer Science Degree
3 42 (4.46%) Master's Degree
4 13 (1.38%) Numerate Degree
5 12 (1.28%) PhD
6 1 (0.11%) ISEB
6 1 (0.11%) ISTQB
Quality Assurance & Compliance
1 102 (10.84%) Accessibility
2 69 (7.33%) QA
3 33 (3.51%) WCAG
4 3 (0.32%) SLA
5 2 (0.21%) WAI
System Software
1 240 (25.50%) Docker
2 21 (2.23%) Active Directory
3 7 (0.74%) Ceph
4 2 (0.21%) Varnish
Systems Management
1 144 (15.30%) Kubernetes
2 60 (6.38%) Terraform
3 41 (4.36%) Istio
4 30 (3.19%) Opscode Chef
5 26 (2.76%) Prometheus
6 19 (2.02%) Grafana
7 14 (1.49%) Bugsnag
8 7 (0.74%) Galera Cluster
9 4 (0.43%) HAProxy
9 4 (0.43%) Kibana
9 4 (0.43%) logstash
9 4 (0.43%) MIIS
9 4 (0.43%) Opsgenie
9 4 (0.43%) Pingdom
9 4 (0.43%) ZABBIX
10 3 (0.32%) Argo
Vendors
1 94 (9.99%) Microsoft
2 92 (9.78%) Google
3 30 (3.19%) Oracle
4 19 (2.02%) New Relic
5 18 (1.91%) Samsung
6 17 (1.81%) BT
7 16 (1.70%) Facebook
8 11 (1.17%) Apple
9 10 (1.06%) LexisNexis
9 10 (1.06%) YouTube
10 9 (0.96%) Netlify
11 8 (0.85%) Qubit
12 7 (0.74%) Adobe
12 7 (0.74%) Percona
12 7 (0.74%) Roku
12 7 (0.74%) Spotify
13 6 (0.64%) IBM
13 6 (0.64%) Instagram
13 6 (0.64%) SAP
13 6 (0.64%) Twitter