Period
to 27 October 2021

The median contractor rate for a JavaScript Developer was £575 per day in advertised job vacancies in London during the 6 months to 27 October 2021.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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 Developer
England > London
6 months to
27 Oct 2021
Same period 2020 Same period 2019
Rank 217 132 140
Rank change year-on-year -85 +8 -34
Contract jobs requiring a JavaScript Developer 484 293 744
As % of all contract jobs advertised in London 1.34% 2.05% 2.04%
As % of the Job Titles category 1.44% 2.23% 2.17%
Number of daily rates quoted 431 264 628
10th Percentile £438 £400 £375
25th Percentile £488 £463 £450
Median daily rate (50th Percentile) £575 £550 £525
Median % change year-on-year +4.55% +4.76% +5.00%
75th Percentile £688 £650 £595
90th Percentile £738 £700 £713
England median daily rate £533 £525 £488
% change year-on-year +1.43% +7.69% +2.63%
Number of hourly rates quoted 2 0 2
10th Percentile £70.73 " £41.00
25th Percentile £71.81 " £42.50
Median hourly rate £74.75 - £45.00
75th Percentile £78.81 " £47.50
90th Percentile £80.58 " £49.00
England median hourly rate £58.25 £30.00 £45.00
% change year-on-year +94.17% -33.33% -5.26%

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in London. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of contract jobs in our overall sample.

All Contract IT Job Vacancies
London
Contract vacancies in London with a recognized job title 33,636 13,135 34,246
% of contract IT jobs with a recognized job title 93.01% 91.76% 93.94%
Number of daily rates quoted 24,444 9,500 25,058
10th Percentile £359 £313 £313
25th Percentile £450 £413 £413
Median daily rate (50th Percentile) £550 £500 £500
Median % change year-on-year +10.00% - -
75th Percentile £650 £613 £600
90th Percentile £738 £713 £688
England median daily rate £508 £475 £475
% change year-on-year +6.84% - +5.56%
Number of hourly rates quoted 328 100 432
10th Percentile £14.09 £16.83 £12.06
25th Percentile £19.44 £21.19 £15.50
Median hourly rate £30.50 £35.00 £21.00
Median % change year-on-year -12.86% +66.67% +12.30%
75th Percentile £52.56 £45.06 £43.75
90th Percentile £65.53 £55.30 £52.50
England median hourly rate £19.76 £22.00 £18.70
% change year-on-year -10.19% +17.65% +6.86%

JavaScript Developer
Job Vacancy Trend in London

Job postings that featured JavaScript Developer in the job title as a proportion of all IT jobs advertised in London.

Job vacancy trend for JavaScript Developer in London

JavaScript Developer
Contractor Daily Rate Trend in London

3-month moving average daily rate quoted in jobs citing JavaScript Developer in London.

Daily rate trend for JavaScript Developer in London

JavaScript Developer
Daily Rate Histogram in London

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

Daily rate histogram for JavaScript Developer in London

JavaScript Developer
Contractor Hourly Rate Trend in London

3-month moving average hourly rates quoted in jobs citing JavaScript Developer in London.

Hourly rate trend for JavaScript Developer in London

JavaScript Developer
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 JavaScript Developer within the 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
Central London -51 24 £550 +4.76% 47
West London -10 12 £600 +15.66% 25
South London -7 2 £340 -28.42% 3
East London -12 1 £540 -21.28% 24
JavaScript Developer
England

JavaScript Developer Skill Set
Top 30 Co-occurring IT Skills in London

For the 6 months to 27 October 2021, JavaScript Developer contract jobs required the following IT 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 featuring JavaScript Developer in the job title.

1 484 (100.00%) JavaScript
2 335 (69.21%) React
3 248 (51.24%) TypeScript
4 231 (47.73%) Full Stack Development
5 218 (45.04%) Agile Software Development
6 204 (42.15%) Node.js
7 167 (34.50%) Finance
8 162 (33.47%) HTML
9 148 (30.58%) Front Office
10 140 (28.93%) AngularJS
11 123 (25.41%) Software Engineering
12 122 (25.21%) TDD
12 122 (25.21%) CSS
13 120 (24.79%) Java
14 111 (22.93%) AWS
15 105 (21.69%) Web Services
15 105 (21.69%) Front End Development
16 97 (20.04%) C#
17 93 (19.21%) HTML5
18 90 (18.60%) SQL
19 88 (18.18%) Serverless
20 86 (17.77%) Social Skills
21 84 (17.36%) Asset Management
22 81 (16.74%) Banking
22 81 (16.74%) Foreign Exchange (FX)
23 78 (16.12%) Python
24 76 (15.70%) AWS Lambda
25 75 (15.50%) Continuous Integration
26 74 (15.29%) .NET
27 73 (15.08%) Amazon DynamoDB

JavaScript Developer Skill Set
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 8 (1.65%) Confluence
1 8 (1.65%) Oracle SOA Suite
2 7 (1.45%) CMS
3 6 (1.24%) Cloud Foundry
4 5 (1.03%) Elasticsearch
5 4 (0.83%) Gunicorn
5 4 (0.83%) nginx
6 3 (0.62%) SharePoint
7 2 (0.41%) Adobe Experience Manager
7 2 (0.41%) Apache Solr
7 2 (0.41%) SharePoint 2013
8 1 (0.21%) Drupal
8 1 (0.21%) Headless CMS
8 1 (0.21%) JBoss
8 1 (0.21%) Sitecore CMS
8 1 (0.21%) Tomcat
Applications
1 6 (1.24%) Photoshop
2 4 (0.83%) Adobe Illustrator
3 2 (0.41%) Figma
3 2 (0.41%) Microsoft Office
4 1 (0.21%) Chatbot
4 1 (0.21%) Microsoft Excel
4 1 (0.21%) Microsoft Project
4 1 (0.21%) MS Visio
Business Applications
1 2 (0.41%) Shopify
2 1 (0.21%) Payment Gateway
Cloud Services
1 111 (22.93%) AWS
2 88 (18.18%) Serverless
3 76 (15.70%) AWS Lambda
4 70 (14.46%) Amazon S3
5 44 (9.09%) npm
6 43 (8.88%) Amazon SQS
7 39 (8.06%) AWS Step Functions
8 33 (6.82%) Amazon EC2
9 29 (5.99%) Azure
10 14 (2.89%) Yarn
11 11 (2.27%) GCP
12 6 (1.24%) Azure Functions
13 5 (1.03%) Google Analytics
13 5 (1.03%) IaaS
14 4 (0.83%) GitHub
14 4 (0.83%) Power Automate
14 4 (0.83%) Power Platform
14 4 (0.83%) PowerApps
14 4 (0.83%) SaaS
15 3 (0.62%) PaaS
Communications & Networking
1 25 (5.17%) RTMP
2 8 (1.65%) HTTP
3 3 (0.62%) Internet
Database & Business Intelligence
1 73 (15.08%) Amazon DynamoDB
2 39 (8.06%) Amazon RDS
3 37 (7.64%) SQL Server
4 33 (6.82%) Relational Database
5 10 (2.07%) MongoDB
6 8 (1.65%) NoSQL
7 4 (0.83%) PostgreSQL
8 3 (0.62%) MySQL
9 2 (0.41%) Azure SQL Database
9 2 (0.41%) Redis
10 1 (0.21%) Oracle Database
10 1 (0.21%) Oracle Database 10g
10 1 (0.21%) Oracle Database 12c
10 1 (0.21%) Power BI
10 1 (0.21%) RDBMS
10 1 (0.21%) SQL Server Integration Services
Development Applications
1 55 (11.36%) Git (software)
2 37 (7.64%) Jenkins
3 28 (5.79%) Jasmine
4 21 (4.34%) Grunt
5 19 (3.93%) webpack
6 18 (3.72%) Mocha
6 18 (3.72%) Selenium
7 16 (3.31%) Karma Test Runner
8 15 (3.10%) Cypress.io
9 14 (2.89%) Subversion
10 13 (2.69%) JIRA
10 13 (2.69%) Storybook
11 9 (1.86%) Cucumber
11 9 (1.86%) TeamCity
12 8 (1.65%) Bitbucket
13 7 (1.45%) JUnit
14 6 (1.24%) GitLab
15 5 (1.03%) Maven
15 5 (1.03%) Moq
16 4 (0.83%) JSUnit
General
1 167 (34.50%) Finance
2 148 (30.58%) Front Office
3 86 (17.77%) Social Skills
4 81 (16.74%) Banking
5 45 (9.30%) Investment Banking
6 21 (4.34%) Analytical Skills
7 11 (2.27%) Marketing
8 9 (1.86%) Telecoms
9 8 (1.65%) Games
10 5 (1.03%) Retail
11 4 (0.83%) Manufacturing
11 4 (0.83%) Public Sector
12 3 (0.62%) Billing
12 3 (0.62%) Publishing
13 2 (0.41%) Electronics
13 2 (0.41%) Financial Institution
14 1 (0.21%) Legal
14 1 (0.21%) Presentation Skills
14 1 (0.21%) Retail Banking
Libraries, Frameworks & Software Standards
1 335 (69.21%) React
2 204 (42.15%) Node.js
3 162 (33.47%) HTML
4 140 (28.93%) AngularJS
5 122 (25.21%) CSS
6 105 (21.69%) Web Services
7 93 (19.21%) HTML5
8 74 (15.29%) .NET
9 67 (13.84%) Redux
10 62 (12.81%) Vue.js
11 52 (10.74%) GraphQL
12 40 (8.26%) Material-UI
13 38 (7.85%) Jest
14 37 (7.64%) RESTful
15 33 (6.82%) Reactive Extensions
15 33 (6.82%) Sass
16 30 (6.20%) WPF
17 25 (5.17%) Silverlight
18 22 (4.55%) CSS3
18 22 (4.55%) REST
Miscellaneous
1 81 (16.74%) Foreign Exchange (FX)
2 58 (11.98%) Equities
3 53 (10.95%) Derivative
3 53 (10.95%) Fixed Income
4 35 (7.23%) User Experience
5 29 (5.99%) Mobile App
6 16 (3.31%) Legacy Applications
7 12 (2.48%) Self-Motivation
8 9 (1.86%) Market Risk
8 9 (1.86%) Video\Live Streaming
9 8 (1.65%) Enterprise Software
9 8 (1.65%) Greenfield Project
10 7 (1.45%) Algorithms
10 7 (1.45%) Chromecast
10 7 (1.45%) PlayStation
10 7 (1.45%) Xbox
11 6 (1.24%) Data Protection Act
12 5 (1.03%) Over-the-Top Content
12 5 (1.03%) STB
13 4 (0.83%) Embedded Systems
Operating Systems
1 13 (2.69%) Linux
2 6 (1.24%) Android
2 6 (1.24%) Apple iOS
2 6 (1.24%) Unix
3 3 (0.62%) Mac OS
3 3 (0.62%) Windows
4 2 (0.41%) Red Hat Enterprise Linux
5 1 (0.21%) Android TV
5 1 (0.21%) Tizen
5 1 (0.21%) tvOS
5 1 (0.21%) Windows Server
Processes & Methodologies
1 231 (47.73%) Full Stack Development
2 218 (45.04%) Agile Software Development
3 123 (25.41%) Software Engineering
4 122 (25.21%) TDD
5 105 (21.69%) Front End Development
6 84 (17.36%) Asset Management
7 75 (15.50%) Continuous Integration
8 56 (11.57%) Investment Management
9 54 (11.16%) Problem-Solving
10 52 (10.74%) Continuous Improvement
11 51 (10.54%) Scrum
12 43 (8.88%) Unit Testing
13 42 (8.68%) Microservices
14 41 (8.47%) DevOps
15 37 (7.64%) E-Commerce
15 37 (7.64%) Test Automation
16 36 (7.44%) Pair Programming
17 33 (6.82%) Web Development
18 29 (5.99%) Analytics
19 28 (5.79%) Electronic Trading
Programming Languages
1 484 (100.00%) JavaScript
2 248 (51.24%) TypeScript
3 120 (24.79%) Java
4 97 (20.04%) C#
5 90 (18.60%) SQL
6 78 (16.12%) Python
7 40 (8.26%) ES6
8 35 (7.23%) Kotlin
9 25 (5.17%) XAML
10 10 (2.07%) C++
11 9 (1.86%) Ruby
12 6 (1.24%) Java 8
12 6 (1.24%) Scala
13 5 (1.03%) Java 9
14 3 (0.62%) Apple Swift
14 3 (0.62%) PHP
14 3 (0.62%) PL/SQL
14 3 (0.62%) R
15 1 (0.21%) Perl
15 1 (0.21%) T-SQL
Qualifications
1 24 (4.96%) Degree
2 5 (1.03%) SC Cleared
2 5 (1.03%) Security Cleared
3 1 (0.21%) BPSS Clearance
Quality Assurance & Compliance
1 13 (2.69%) Accessibility
2 6 (1.24%) PMO
3 4 (0.83%) QA
4 2 (0.41%) Data Quality
System Software
1 55 (11.36%) Docker
2 2 (0.41%) Active Directory
3 1 (0.21%) VMware Infrastructure
Systems Management
1 52 (10.74%) Kubernetes
2 47 (9.71%) Terraform
3 4 (0.83%) Kibana
3 4 (0.83%) logstash
4 1 (0.21%) Ansible
4 1 (0.21%) vRealize
4 1 (0.21%) vRealize Orchestrator
Vendors
1 34 (7.02%) Microsoft
2 14 (2.89%) Oracle
3 11 (2.27%) Adobe
3 11 (2.27%) Google
4 8 (1.65%) Samsung
5 5 (1.03%) DevExpress
5 5 (1.03%) RedGate
6 4 (0.83%) Cadence
7 2 (0.41%) Atlassian
7 2 (0.41%) Nintex
7 2 (0.41%) SAP
8 1 (0.21%) Foundry
8 1 (0.21%) MuleSoft
8 1 (0.21%) Netlify
8 1 (0.21%) New Relic
8 1 (0.21%) Roku
8 1 (0.21%) Rollbar
8 1 (0.21%) Salesforce.com
8 1 (0.21%) Sitecore
8 1 (0.21%) Splunk