Period
to 27 October 2021

The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 27 October 2021 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.

JavaScript (including ECMAScript)
Central London > City of London
6 months to
27 Oct 2021
Same period 2020 Same period 2019
Rank 16 13 10
Rank change year-on-year -3 -3 -2
Contract jobs citing JavaScript 322 162 708
As % of all contract jobs advertised in the City of London 8.22% 9.00% 11.92%
As % of the Programming Languages category 17.06% 18.43% 23.60%
Number of daily rates quoted 248 131 593
10th Percentile £388 £308 £392
25th Percentile £450 £425 £450
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +5.00%
75th Percentile £638 £594 £588
90th Percentile £706 £675 £650
Central London median daily rate £550 £525 £525
% change year-on-year +4.76% - +5.00%
Number of hourly rates quoted 5 1 1
10th Percentile £35.10 " "
25th Percentile £35.25 £38.00 £44.75
Median hourly rate £36.50 £39.00 £48.50
Median % change year-on-year -6.41% -19.59% -
75th Percentile £67.75 £40.00 £52.25
90th Percentile £69.10 " "
Central London median hourly rate £36.50 £39.00 £48.50
% change year-on-year -6.41% -19.59% -

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 1,887 879 3,000
As % of all contract IT jobs advertised in the City of London 48.20% 48.83% 50.52%
Number of daily rates quoted 1,495 676 2,467
10th Percentile £413 £363 £400
25th Percentile £500 £425 £463
Median daily rate (50th Percentile) £600 £525 £525
Median % change year-on-year +14.29% - -
75th Percentile £688 £625 £625
90th Percentile £775 £697 £688
Central London median daily rate £600 £525 £525
% change year-on-year +14.29% - -
Number of hourly rates quoted 10 7 12
10th Percentile £26.15 £12.75 "
25th Percentile £32.00 £17.38 £21.00
Median hourly rate £36.50 £24.00 £33.45
Median % change year-on-year +52.08% -28.25% +13.21%
75th Percentile £61.56 £38.13 £51.50
90th Percentile £67.98 £39.55 £55.18
Central London median hourly rate £36.50 £24.00 £22.50
% change year-on-year +52.08% +6.67% +2.27%

JavaScript
Job Vacancy Trend in the City of London

Job postings citing JavaScript as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Trend in the City of London

3-month moving average daily rate quoted in jobs citing JavaScript in the City of London.

Daily rate trend for JavaScript in the City of London

JavaScript
Daily Rate Histogram in the City of London

Daily rate distribution for jobs citing JavaScript in the City of London over the 6 months to 27 October 2021.

Daily rate histogram for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Trend in the City of London

3-month moving average hourly rates quoted in jobs citing JavaScript in the City of London.

Hourly rate trend for JavaScript in the City of London

JavaScript
Hourly Rate Histogram in the City of London

Hourly rate distribution of jobs citing JavaScript in the City of London over the 6 months to 27 October 2021.

Hourly rate histogram for JavaScript in the City of London

JavaScript
Contract Job Locations in the City of London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript within the City of London region over the 6 months to 27 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London Bridge -3 8 £650 +8.33%
JavaScript
Central London

For the 6 months to 27 October 2021, IT contractor jobs citing JavaScript 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 City of London region with a requirement for JavaScript.

1 159 (49.38%) HTML
2 158 (49.07%) CSS
3 125 (38.82%) React
4 113 (35.09%) Agile Software Development
5 98 (30.43%) AngularJS
6 92 (28.57%) AWS
7 91 (28.26%) Node.js
8 88 (27.33%) Full Stack Development
9 87 (27.02%) Java
10 83 (25.78%) TDD
10 83 (25.78%) Azure
11 73 (22.67%) TypeScript
12 71 (22.05%) DevOps
13 70 (21.74%) Git (software)
14 64 (19.88%) HTML5
15 62 (19.25%) Front End Development
16 61 (18.94%) Python
17 59 (18.32%) SQL
18 58 (18.01%) Software Engineering
19 51 (15.84%) .NET
20 50 (15.53%) C#
21 49 (15.22%) Sass
22 45 (13.98%) CSS3
22 45 (13.98%) Microservices
22 45 (13.98%) Finance
23 44 (13.66%) Web Services
24 42 (13.04%) Docker
25 40 (12.42%) Redux
26 38 (11.80%) Vue.js
26 38 (11.80%) Jenkins

JavaScript
Co-occurring IT Skills in the City of 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 11 (3.42%) CMS
2 10 (3.11%) SharePoint
3 5 (1.55%) Confluence
3 5 (1.55%) Oracle SOA Suite
4 4 (1.24%) Moodle
4 4 (1.24%) OpenStack
5 3 (0.93%) SharePoint 2010
6 2 (0.62%) Apache
6 2 (0.62%) Apache Spark
6 2 (0.62%) Drupal
6 2 (0.62%) EPiServer
6 2 (0.62%) IIS
6 2 (0.62%) SharePoint 2013
6 2 (0.62%) Umbraco
6 2 (0.62%) WordPress
7 1 (0.31%) BizTalk Server
7 1 (0.31%) Elasticsearch
7 1 (0.31%) JBoss
7 1 (0.31%) Tomcat
7 1 (0.31%) WebLogic
Applications
1 4 (1.24%) Microsoft Excel
2 3 (0.93%) Adobe Illustrator
2 3 (0.93%) InfoPath
3 1 (0.31%) Chatbot
3 1 (0.31%) Microsoft Project
3 1 (0.31%) Spreadsheet
Business Applications
1 5 (1.55%) Dynamics CRM
2 1 (0.31%) Magento
2 1 (0.31%) Payment Gateway
2 1 (0.31%) Salesforce.com CRM
Cloud Services
1 92 (28.57%) AWS
2 83 (25.78%) Azure
3 26 (8.07%) Serverless
4 20 (6.21%) AWS Lambda
5 14 (4.35%) AWS CloudFormation
5 14 (4.35%) GCP
6 13 (4.04%) Power Platform
7 10 (3.11%) Power Automate
8 9 (2.80%) Azure Logic Apps
9 8 (2.48%) GitHub
9 8 (2.48%) SaaS
10 7 (2.17%) Microsoft 365
11 6 (1.86%) Cloud Computing
11 6 (1.86%) PowerApps
12 5 (1.55%) Amazon EC2
12 5 (1.55%) npm
13 4 (1.24%) Amazon SQS
13 4 (1.24%) OpenShift
13 4 (1.24%) Slack
13 4 (1.24%) Zapier
Communications & Networking
1 11 (3.42%) HTTP
2 7 (2.17%) BGP
3 3 (0.93%) Internet
3 3 (0.93%) NAS
3 3 (0.93%) SAN
4 2 (0.62%) AMQP
5 1 (0.31%) 5G
5 1 (0.31%) Broadband
5 1 (0.31%) Intranet
5 1 (0.31%) Radio Access Network
5 1 (0.31%) SNMP
5 1 (0.31%) SSH
5 1 (0.31%) TCP/IP
Database & Business Intelligence
1 30 (9.32%) SQL Server
2 24 (7.45%) NoSQL
3 23 (7.14%) MongoDB
4 19 (5.90%) MySQL
5 11 (3.42%) Big Data
5 11 (3.42%) Power BI
6 9 (2.80%) SQL Server Integration Services
7 7 (2.17%) Amazon DynamoDB
7 7 (2.17%) PostgreSQL
7 7 (2.17%) Relational Database
8 5 (1.55%) Oracle Database
9 4 (1.24%) SQL Server Reporting Services
10 3 (0.93%) Amazon RDS
10 3 (0.93%) Apache Hive
10 3 (0.93%) Azure SQL Database
10 3 (0.93%) Metadata
10 3 (0.93%) RDBMS
10 3 (0.93%) Tableau
11 2 (0.62%) Hadoop
11 2 (0.62%) Redis
Development Applications
1 70 (21.74%) Git (software)
2 38 (11.80%) Jenkins
3 18 (5.59%) webpack
4 16 (4.97%) Jasmine
5 15 (4.66%) JIRA
6 14 (4.35%) Selenium
7 13 (4.04%) Cucumber
7 13 (4.04%) Cypress.io
8 10 (3.11%) Grunt
8 10 (3.11%) Karma Test Runner
8 10 (3.11%) Postman
8 10 (3.11%) Visual Studio
9 8 (2.48%) Bitbucket
9 8 (2.48%) gulp
10 6 (1.86%) JSUnit
10 6 (1.86%) PhantomJS
11 5 (1.55%) Team Foundation Server
12 4 (1.24%) Bower
12 4 (1.24%) JUnit
12 4 (1.24%) Protractor
General
1 45 (13.98%) Finance
2 28 (8.70%) Social Skills
3 25 (7.76%) Banking
4 13 (4.04%) Marketing
4 13 (4.04%) Retail
5 11 (3.42%) Legal
6 10 (3.11%) Analytical Skills
6 10 (3.11%) Investment Banking
7 9 (2.80%) Financial Institution
8 7 (2.17%) Advertising
9 6 (1.86%) Public Sector
10 4 (1.24%) Front Office
10 4 (1.24%) Presentation Skills
10 4 (1.24%) Telecoms
11 3 (0.93%) Games
11 3 (0.93%) Law
12 1 (0.31%) Automotive
12 1 (0.31%) Military
12 1 (0.31%) Multimedia
12 1 (0.31%) Publishing
Job Titles
1 231 (71.74%) Developer
2 39 (12.11%) Full Stack Developer
3 37 (11.49%) Front End Developer (Client-Side Developer)
3 37 (11.49%) Senior Developer
4 35 (10.87%) React Developer
5 23 (7.14%) JavaScript Developer
5 23 (7.14%) PHP Developer
6 19 (5.90%) Java Developer
7 18 (5.59%) Backend Developer
8 17 (5.28%) Angular Developer
9 16 (4.97%) .NET Developer
10 14 (4.35%) UI Developer
11 12 (3.73%) C# Developer
11 12 (3.73%) Python Developer
12 11 (3.42%) Salesforce Developer
12 11 (3.42%) Senior Front-End Developer
12 11 (3.42%) Software Engineer
13 10 (3.11%) Lead Developer
14 9 (2.80%) C# .NET Developer
14 9 (2.80%) Senior React Developer
Libraries, Frameworks & Software Standards
1 159 (49.38%) HTML
2 158 (49.07%) CSS
3 125 (38.82%) React
4 98 (30.43%) AngularJS
5 91 (28.26%) Node.js
6 64 (19.88%) HTML5
7 51 (15.84%) .NET
8 49 (15.22%) Sass
9 45 (13.98%) CSS3
10 44 (13.66%) Web Services
11 40 (12.42%) Redux
12 38 (11.80%) Vue.js
13 37 (11.49%) REST
14 35 (10.87%) jQuery
15 31 (9.63%) Spring
16 26 (8.07%) RESTful
17 23 (7.14%) Jest
17 23 (7.14%) Laravel
17 23 (7.14%) LESS
18 20 (6.21%) Vuetify.js
Miscellaneous
1 27 (8.39%) User Experience
2 19 (5.90%) Data Structures
3 15 (4.66%) Hedge funds
4 12 (3.73%) Greenfield Project
5 11 (3.42%) Algorithms
5 11 (3.42%) Foreign Exchange (FX)
6 10 (3.11%) Fixed Income
7 9 (2.80%) Cloud Native
7 9 (2.80%) Mobile App
8 8 (2.48%) Enterprise Software
9 7 (2.17%) Equities
10 6 (1.86%) N-Tier
10 6 (1.86%) Social Media
11 4 (1.24%) e-Learning
11 4 (1.24%) Public Cloud
12 3 (0.93%) Data Centre
12 3 (0.93%) Derivative
12 3 (0.93%) Enterprise Cloud
12 3 (0.93%) Graphic Design
12 3 (0.93%) SCORM
Operating Systems
1 10 (3.11%) Linux
2 6 (1.86%) Windows
3 5 (1.55%) Apple iOS
4 3 (0.93%) Unix
5 2 (0.62%) Red Hat Enterprise Linux
6 1 (0.31%) Android
6 1 (0.31%) Ubuntu
Processes & Methodologies
1 113 (35.09%) Agile Software Development
2 88 (27.33%) Full Stack Development
3 83 (25.78%) TDD
4 71 (22.05%) DevOps
5 62 (19.25%) Front End Development
6 58 (18.01%) Software Engineering
7 45 (13.98%) Microservices
8 38 (11.80%) MVC
9 36 (11.18%) Scrum
9 36 (11.18%) Web Development
10 32 (9.94%) Continuous Integration
11 26 (8.07%) Test Automation
11 26 (8.07%) Unit Testing
12 24 (7.45%) BDD
12 24 (7.45%) Problem-Solving
13 21 (6.52%) Analytics
14 20 (6.21%) SDLC
15 17 (5.28%) Pair Programming
16 16 (4.97%) Mentoring
17 15 (4.66%) Business Intelligence
Programming Languages
1 87 (27.02%) Java
2 73 (22.67%) TypeScript
3 61 (18.94%) Python
4 59 (18.32%) SQL
5 50 (15.53%) C#
6 31 (9.63%) PHP
7 20 (6.21%) ES6
8 14 (4.35%) C++
9 11 (3.42%) PowerShell
9 11 (3.42%) Ruby
10 9 (2.80%) Kotlin
11 7 (2.17%) Scala
12 6 (1.86%) Bash Shell
12 6 (1.86%) C
13 5 (1.55%) Apex Code
13 5 (1.55%) Go
13 5 (1.55%) PL/SQL
13 5 (1.55%) VBA
14 4 (1.24%) Java 8
14 4 (1.24%) T-SQL
Qualifications
1 17 (5.28%) Degree
2 12 (3.73%) Security Cleared
3 10 (3.11%) SC Cleared
4 5 (1.55%) AWS Certification
5 4 (1.24%) Computer Science Degree
6 3 (0.93%) CISSP
7 1 (0.31%) ISEB
7 1 (0.31%) ITIL Certification
7 1 (0.31%) Microsoft Certification
Quality Assurance & Compliance
1 19 (5.90%) Accessibility
1 19 (5.90%) QA
2 8 (2.48%) GDPR
3 6 (1.86%) Data Quality
4 5 (1.55%) WCAG
5 1 (0.31%) PMO
System Software
1 42 (13.04%) Docker
2 2 (0.62%) Active Directory
3 1 (0.31%) GeoWebCache
3 1 (0.31%) RACF
Systems Management
1 19 (5.90%) Kubernetes
2 17 (5.28%) Terraform
3 11 (3.42%) Opscode Chef
4 8 (2.48%) Ansible
5 7 (2.17%) Puppet
6 2 (0.62%) Grafana
6 2 (0.62%) Kibana
7 1 (0.31%) Cobbler
7 1 (0.31%) CSIRT
7 1 (0.31%) Marathon
7 1 (0.31%) Packer
7 1 (0.31%) Prometheus
Vendors
1 31 (9.63%) Oracle
2 19 (5.90%) Salesforce.com
3 14 (4.35%) Microsoft
4 6 (1.86%) Nintex
5 5 (1.55%) Adobe
5 5 (1.55%) MuleSoft
6 4 (1.24%) HubSpot
6 4 (1.24%) Splunk
7 2 (0.62%) Apple
7 2 (0.62%) Google
7 2 (0.62%) SAP
7 2 (0.62%) Telerik
7 2 (0.62%) Workday
7 2 (0.62%) WorldPay
8 1 (0.31%) Databricks
8 1 (0.31%) PagerDuty
8 1 (0.31%) Palo Alto
8 1 (0.31%) PayPal
8 1 (0.31%) Perfecto Mobile
8 1 (0.31%) Rollbar