Period
to 28 October 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 October 2021 with a comparison to the same period in the previous 2 years.

Jest
England > London
6 months to
28 Oct 2021
Same period 2020 Same period 2019
Rank 188 286 470
Rank change year-on-year +98 +184 +126
Permanent jobs citing Jest 1,034 187 291
As % of all permanent jobs advertised in London 2.03% 0.94% 0.53%
As % of the Libraries, Frameworks & Software Standards category 4.30% 2.07% 1.35%
Number of salaries quoted 342 166 234
10th Percentile £45,000 £51,250 £43,750
25th Percentile £57,500 £62,500 £49,500
Median annual salary (50th Percentile) £72,500 £72,500 £65,000
Median % change year-on-year - +11.54% -
75th Percentile £82,500 £83,750 £75,000
90th Percentile £93,625 £95,000 £88,750
England median annual salary £62,500 £65,000 £60,000
% change year-on-year -3.85% +8.33% -4.00%

Jest is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all 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 24,046 9,055 21,527
As % of all permanent IT jobs advertised in London 47.11% 45.39% 39.37%
Number of salaries quoted 13,658 7,886 18,143
10th Percentile £46,250 £46,250 £41,250
25th Percentile £56,250 £56,250 £51,250
Median annual salary (50th Percentile) £75,000 £70,000 £67,500
Median % change year-on-year +7.14% +3.70% +3.85%
75th Percentile £92,500 £90,000 £85,000
90th Percentile £112,500 £112,500 £100,000
England median annual salary £60,000 £59,000 £55,000
% change year-on-year +1.69% +7.27% +4.76%

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 October 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 October 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 -60 28 £68,750 +1.85% 34
West London -55 21 £75,000 +7.14% 10
South London -12 17 £60,000 -7.69% 2
North London -14 1 - - 1
East London - 1 £50,000 - 11
Jest
England

For the 6 months to 28 October 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.

1 860 (83.17%) React
2 729 (70.50%) JavaScript
3 630 (60.93%) TypeScript
4 589 (56.96%) Node.js
5 552 (53.38%) Agile Software Development
6 448 (43.33%) CSS
7 406 (39.26%) Cypress.io
8 402 (38.88%) Git (software)
9 393 (38.01%) Software Engineering
10 391 (37.81%) AWS
11 378 (36.56%) HTML
12 366 (35.40%) Redux
13 349 (33.75%) Front End Development
14 342 (33.08%) User Experience
15 328 (31.72%) Full Stack Development
16 324 (31.33%) TDD
17 320 (30.95%) Docker
18 301 (29.11%) AngularJS
19 257 (24.85%) Unit Testing
20 241 (23.31%) webpack
21 240 (23.21%) Finance
22 237 (22.92%) Test Automation
23 226 (21.86%) GraphQL
24 224 (21.66%) ES6
25 222 (21.47%) Social Skills
26 219 (21.18%) Kubernetes
27 218 (21.08%) REST
28 217 (20.99%) Sass
29 213 (20.60%) PostgreSQL
30 205 (19.83%) Vue.js

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 (4.84%) CMS
2 47 (4.55%) Confluence
3 27 (2.61%) Elasticsearch
4 15 (1.45%) Apache Spark
5 13 (1.26%) Kentico
6 8 (0.77%) Ethereum
7 7 (0.68%) Drupal
7 7 (0.68%) Magnolia
7 7 (0.68%) Tomcat
8 6 (0.58%) Headless CMS
9 5 (0.48%) IIS
9 5 (0.48%) nginx
10 4 (0.39%) Adobe Experience Manager
11 3 (0.29%) Apache
12 2 (0.19%) WordPress
13 1 (0.097%) WebLogic
Applications
1 29 (2.80%) Sketch
2 28 (2.71%) Figma
3 14 (1.35%) InVision
4 10 (0.97%) Adobe Premiere
4 10 (0.97%) Final Cut Pro
5 8 (0.77%) Photoshop
6 6 (0.58%) Zeplin
7 5 (0.48%) GIMP
8 3 (0.29%) UXPin
9 2 (0.19%) Chatbot
10 1 (0.097%) Revit
Business Applications
1 6 (0.58%) Summit
2 1 (0.097%) Dynamics CRM
2 1 (0.097%) Sentinel
Cloud Services
1 391 (37.81%) AWS
2 189 (18.28%) Azure
3 148 (14.31%) GCP
4 147 (14.22%) GitHub
5 98 (9.48%) SaaS
5 98 (9.48%) Serverless
6 82 (7.93%) npm
7 77 (7.45%) Slack
8 63 (6.09%) AWS Lambda
9 60 (5.80%) Amazon S3
10 50 (4.84%) GitHub Actions
11 49 (4.74%) Amazon EKS
12 43 (4.16%) Heroku
13 37 (3.58%) Amazon SQS
14 26 (2.51%) AWS Fargate
15 21 (2.03%) CloudFront
15 21 (2.03%) Yarn
16 19 (1.84%) Amazon EC2
16 19 (1.84%) Twilio
17 18 (1.74%) Amazon CloudWatch
Communications & Networking
1 33 (3.19%) HTTP
2 18 (1.74%) MQTT
3 9 (0.87%) Internet
4 6 (0.58%) Broadband
5 5 (0.48%) Network Security
6 3 (0.29%) SMS
7 2 (0.19%) VoIP
Database & Business Intelligence
1 213 (20.60%) PostgreSQL
2 108 (10.44%) Relational Database
3 101 (9.77%) NoSQL
4 92 (8.90%) MySQL
5 83 (8.03%) SQL Server
6 80 (7.74%) Amazon DynamoDB
7 72 (6.96%) MongoDB
8 70 (6.77%) Redis
9 64 (6.19%) RDBMS
10 46 (4.45%) Amazon Redshift
11 39 (3.77%) Amazon RDS
12 21 (2.03%) Amazon Aurora
13 14 (1.35%) BigQuery
13 14 (1.35%) Blockchain
13 14 (1.35%) Couchbase
14 13 (1.26%) Big Data
15 12 (1.16%) Presto
16 8 (0.77%) MariaDB
17 5 (0.48%) SQL Server 2012
17 5 (0.48%) SQL Server Reporting Services
Development Applications
1 406 (39.26%) Cypress.io
2 402 (38.88%) Git (software)
3 241 (23.31%) webpack
4 149 (14.41%) Mocha
5 140 (13.54%) Jasmine
6 102 (9.86%) CircleCI
7 90 (8.70%) Octopus Deploy
8 87 (8.41%) JIRA
8 87 (8.41%) NUnit
9 83 (8.03%) Babel
9 83 (8.03%) Team Foundation Server
10 74 (7.16%) Postman
11 70 (6.77%) GitLab
12 69 (6.67%) gulp
12 69 (6.67%) Moq
13 64 (6.19%) Jenkins
14 63 (6.09%) Storybook
15 59 (5.71%) Selenium
16 45 (4.35%) JUnit
17 36 (3.48%) Grunt
General
1 240 (23.21%) Finance
2 222 (21.47%) Social Skills
3 119 (11.51%) Marketing
4 97 (9.38%) Games
5 70 (6.77%) Retail
6 49 (4.74%) Banking
7 39 (3.77%) Analytical Skills
8 31 (3.00%) Telecoms
9 29 (2.80%) Financial Institution
10 28 (2.71%) Pharmaceutical
11 19 (1.84%) Inclusion and Diversity
12 18 (1.74%) Advertising
12 18 (1.74%) Back Office
13 17 (1.64%) Public Sector
14 8 (0.77%) Electronics
14 8 (0.77%) Publishing
15 7 (0.68%) Presentation Skills
16 6 (0.58%) Legal
16 6 (0.58%) Organisational Skills
16 6 (0.58%) Polish Language
Job Titles
1 485 (46.91%) Developer
2 220 (21.28%) Front End Developer (Client-Side Developer)
3 128 (12.38%) Software Engineer
4 125 (12.09%) React Developer
5 114 (11.03%) Full Stack Developer
6 93 (8.99%) Senior Developer
7 54 (5.22%) JavaScript Developer
8 52 (5.03%) Senior Software Engineer
9 37 (3.58%) Senior React Developer
10 36 (3.48%) Python Engineer
10 36 (3.48%) Software Developer
11 34 (3.29%) Senior Front-End Developer
12 29 (2.80%) .NET Developer
13 27 (2.61%) Node.js Developer
14 24 (2.32%) C# Developer
15 23 (2.22%) C# .NET Developer
15 23 (2.22%) PHP Developer
15 23 (2.22%) PHP Laravel Developer
15 23 (2.22%) Technical Leader
16 22 (2.13%) PHP Developer - Fintech
Libraries, Frameworks & Software Standards
1 860 (83.17%) React
2 589 (56.96%) Node.js
3 448 (43.33%) CSS
4 378 (36.56%) HTML
5 366 (35.40%) Redux
6 301 (29.11%) AngularJS
7 226 (21.86%) GraphQL
8 218 (21.08%) REST
9 217 (20.99%) Sass
10 205 (19.83%) Vue.js
11 204 (19.73%) Enzyme
12 189 (18.28%) React Native
13 188 (18.18%) HTML5
14 164 (15.86%) .NET
15 153 (14.80%) CSS3
16 122 (11.80%) RESTful
17 121 (11.70%) Kafka
18 107 (10.35%) Next.js
19 92 (8.90%) Web Services
20 90 (8.70%) LESS
Miscellaneous
1 342 (33.08%) User Experience
2 70 (6.77%) Mobile App
3 53 (5.13%) Self-Motivation
4 52 (5.03%) Virtual Team
5 49 (4.74%) Enterprise Software
6 32 (3.09%) Video\Live Streaming
7 31 (3.00%) Greenfield Project
8 29 (2.80%) Algorithms
9 27 (2.61%) Legacy Code
10 24 (2.32%) Social Media
11 23 (2.22%) Blog
12 22 (2.13%) Social Network
13 20 (1.93%) Video on Demand
14 18 (1.74%) Data Structures
14 18 (1.74%) W3C
14 18 (1.74%) Xbox
15 14 (1.35%) Pricing Data
16 11 (1.06%) Cloud Native
16 11 (1.06%) Management Information System
17 10 (0.97%) Video Editing
Operating Systems
1 96 (9.28%) Android
2 94 (9.09%) Apple iOS
3 30 (2.90%) Windows
4 21 (2.03%) Linux
5 4 (0.39%) Unix
6 3 (0.29%) tvOS
Processes & Methodologies
1 552 (53.38%) Agile Software Development
2 393 (38.01%) Software Engineering
3 349 (33.75%) Front End Development
4 328 (31.72%) Full Stack Development
5 324 (31.33%) TDD
6 257 (24.85%) Unit Testing
7 237 (22.92%) Test Automation
8 176 (17.02%) Microservices
9 172 (16.63%) Scrum
10 160 (15.47%) Continuous Integration
11 158 (15.28%) Mentoring
12 145 (14.02%) DevOps
13 130 (12.57%) Fintech
14 129 (12.48%) Problem-Solving
15 103 (9.96%) Responsive Web Design
16 102 (9.86%) Pair Programming
17 92 (8.90%) Kanban
18 89 (8.61%) Machine Learning
19 87 (8.41%) E-Commerce
20 83 (8.03%) Refactoring
Programming Languages
1 729 (70.50%) JavaScript
2 630 (60.93%) TypeScript
3 224 (21.66%) ES6
4 178 (17.21%) SQL
5 161 (15.57%) Python
6 147 (14.22%) C#
7 143 (13.83%) Java
8 70 (6.77%) Go
9 55 (5.32%) PHP
10 41 (3.97%) Kotlin
11 37 (3.58%) Ruby
12 30 (2.90%) PowerShell
13 29 (2.80%) Scala
14 23 (2.22%) Apple Swift
14 23 (2.22%) ES7
15 22 (2.13%) PHP 7
16 21 (2.03%) Objective-C
17 20 (1.93%) Bash Shell
18 17 (1.64%) C
19 12 (1.16%) JSX
Qualifications
1 72 (6.96%) Degree
2 44 (4.26%) Computer Science Degree
3 26 (2.51%) Master's Degree
4 16 (1.55%) PhD
5 6 (0.58%) Numerate Degree
6 2 (0.19%) ISEB
6 2 (0.19%) ISTQB
7 1 (0.097%) SC Cleared
7 1 (0.097%) Security Cleared
Quality Assurance & Compliance
1 109 (10.54%) Accessibility
2 92 (8.90%) QA
3 41 (3.97%) WCAG
4 4 (0.39%) GDPR
4 4 (0.39%) HIPAA
5 3 (0.29%) SLA
6 1 (0.097%) Data Quality
System Software
1 320 (30.95%) Docker
2 12 (1.16%) Active Directory
3 5 (0.48%) Ceph
4 1 (0.097%) Varnish
Systems Management
1 219 (21.18%) Kubernetes
2 88 (8.51%) Terraform
3 84 (8.12%) Grafana
4 52 (5.03%) Opscode Chef
5 46 (4.45%) Istio
6 40 (3.87%) Prometheus
7 19 (1.84%) Kibana
8 18 (1.74%) HAProxy
8 18 (1.74%) logstash
8 18 (1.74%) Opsgenie
8 18 (1.74%) Pingdom
8 18 (1.74%) ZABBIX
9 14 (1.35%) Bugsnag
9 14 (1.35%) MIIS
10 7 (0.68%) Argo
11 5 (0.48%) Galera Cluster
12 3 (0.29%) Rancher
13 2 (0.19%) Puppet
Vendors
1 144 (13.93%) Google
2 83 (8.03%) Microsoft
3 37 (3.58%) New Relic
4 24 (2.32%) Facebook
5 23 (2.22%) Oracle
6 22 (2.13%) Apple
7 21 (2.03%) BT
8 14 (1.35%) Instagram
8 14 (1.35%) LexisNexis
8 14 (1.35%) Samsung
8 14 (1.35%) Sun
8 14 (1.35%) Twitter
9 12 (1.16%) YouTube
10 11 (1.06%) Spotify
11 9 (0.87%) Netlify
12 7 (0.68%) IBM
12 7 (0.68%) SAP
13 6 (0.58%) Adobe
13 6 (0.58%) BEA
13 6 (0.58%) HubSpot