Period
to 25 October 2021

The following table provides summary statistics for contract job vacancies advertised in 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 25 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)
England > London
6 months to
25 Oct 2021
Same period 2020 Same period 2019
Rank 13 13 7
Rank change year-on-year 0 -6 0
Contract jobs citing JavaScript 3,797 1,578 4,752
As % of all contract jobs advertised in London 10.56% 11.16% 13.03%
As % of the Programming Languages category 23.12% 22.20% 27.31%
Number of daily rates quoted 2,967 1,241 3,675
10th Percentile £400 £325 £363
25th Percentile £463 £425 £425
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +5.00%
75th Percentile £650 £650 £588
90th Percentile £713 £750 £688
England median daily rate £523 £475 £475
% change year-on-year +10.00% - +5.56%
Number of hourly rates quoted 16 10 33
10th Percentile £35.13 £17.70 £25.40
25th Percentile £40.88 £22.50 £36.70
Median hourly rate £62.00 £36.98 £50.00
Median % change year-on-year +67.68% -26.05% +11.11%
75th Percentile £70.03 £41.50 £53.75
90th Percentile £82.75 £50.85 £122.50
England median hourly rate £55.00 £39.00 £48.50
% change year-on-year +41.03% -19.59% +14.12%

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 16,425 7,107 17,399
As % of all contract IT jobs advertised in London 45.69% 50.24% 47.71%
Number of daily rates quoted 12,454 5,221 13,321
10th Percentile £400 £350 £363
25th Percentile £475 £425 £431
Median daily rate (50th Percentile) £565 £525 £525
Median % change year-on-year +7.62% - -
75th Percentile £675 £638 £618
90th Percentile £750 £738 £700
England median daily rate £525 £495 £488
% change year-on-year +6.06% +1.54% +2.63%
Number of hourly rates quoted 93 41 114
10th Percentile £24.50 £21.25 £17.88
25th Percentile £35.25 £27.00 £25.06
Median hourly rate £51.25 £37.00 £47.50
Median % change year-on-year +38.51% -22.11% +21.79%
75th Percentile £64.00 £43.00 £52.50
90th Percentile £70.82 £55.00 £55.50
England median hourly rate £45.50 £37.93 £45.00
% change year-on-year +19.97% -15.72% +7.14%

JavaScript
Job Vacancy Trend in London

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

Job vacancy trend for JavaScript in London

JavaScript
Contractor Daily Rate Trend in London

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

Daily rate trend for JavaScript in London

JavaScript
Daily Rate Histogram in London

Daily rate distribution for jobs citing JavaScript in London over the 6 months to 25 October 2021.

Daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

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

Hourly rate trend for JavaScript in London

JavaScript
Hourly Rate Histogram in London

Hourly rate distribution of jobs citing JavaScript in London over the 6 months to 25 October 2021.

Hourly rate histogram for JavaScript in London

JavaScript
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 within the London region over the 6 months to 25 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 0 363 £550 +4.76% 496
West London -2 47 £613 +31.79% 144
South London -11 33 £520 +3.48% 27
East London -9 16 £540 +35.00% 146
JavaScript
England

For the 6 months to 25 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 London region with a requirement for JavaScript.

1 1,874 (49.35%) React
2 1,744 (45.93%) Agile Software Development
3 1,401 (36.90%) HTML
4 1,277 (33.63%) CSS
5 1,211 (31.89%) TypeScript
6 1,134 (29.87%) Node.js
7 1,108 (29.18%) Finance
8 1,092 (28.76%) Java
9 1,070 (28.18%) AWS
10 1,046 (27.55%) Full Stack Development
11 894 (23.54%) Python
12 854 (22.49%) AngularJS
13 825 (21.73%) Software Engineering
14 785 (20.67%) Azure
15 760 (20.02%) DevOps
16 694 (18.28%) Web Services
17 681 (17.94%) SQL
18 674 (17.75%) TDD
19 671 (17.67%) Docker
20 663 (17.46%) Social Skills
21 630 (16.59%) C#
22 619 (16.30%) Kubernetes
23 565 (14.88%) Git (software)
24 557 (14.67%) Front End Development
25 538 (14.17%) .NET
26 537 (14.14%) Serverless
27 524 (13.80%) HTML5
28 516 (13.59%) Test Automation
29 512 (13.48%) Microservices
30 473 (12.46%) Terraform

JavaScript
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
1 132 (3.48%) CMS
2 111 (2.92%) Confluence
3 93 (2.45%) SharePoint
4 83 (2.19%) Elasticsearch
5 79 (2.08%) Apache
6 54 (1.42%) Adobe Experience Manager
7 44 (1.16%) Tomcat
8 33 (0.87%) Apache Spark
8 33 (0.87%) IIS
8 33 (0.87%) nginx
9 27 (0.71%) Cloud Foundry
10 26 (0.68%) Oracle SOA Suite
11 25 (0.66%) Apache Airflow
11 25 (0.66%) WordPress
12 22 (0.58%) Headless CMS
13 20 (0.53%) Drupal
14 19 (0.50%) WebLogic
15 15 (0.40%) Appian
16 13 (0.34%) Umbraco
16 13 (0.34%) WebSphere
Applications
1 31 (0.82%) Microsoft Excel
2 25 (0.66%) Microsoft Office
3 21 (0.55%) Photoshop
4 15 (0.40%) Sketch
5 14 (0.37%) Microsoft PowerPoint
6 13 (0.34%) Chatbot
6 13 (0.34%) Figma
7 8 (0.21%) Adobe Illustrator
8 6 (0.16%) Adobe Creative Suite
8 6 (0.16%) Adobe XD
9 5 (0.13%) InfoPath
10 4 (0.11%) MS Visio
11 3 (0.079%) GIMP
11 3 (0.079%) Microsoft Project
11 3 (0.079%) Spreadsheet
11 3 (0.079%) Zeplin
12 2 (0.053%) InVision
13 1 (0.026%) OmniGraffle
13 1 (0.026%) SPSS
13 1 (0.026%) UXPin
Business Applications
1 42 (1.11%) Dynamics CRM
2 14 (0.37%) Magento
3 11 (0.29%) Shopify
4 10 (0.26%) Dynamics AX
5 8 (0.21%) SAP Hybris
6 7 (0.18%) Temenos T24
7 5 (0.13%) Adobe Campaign
7 5 (0.13%) Salesforce.com CRM
8 4 (0.11%) SAP Oil and Gas
8 4 (0.11%) SAP S/4HANA
9 3 (0.079%) Oracle ERP
10 2 (0.053%) Loan IQ
10 2 (0.053%) Oracle Applications
10 2 (0.053%) Payment Gateway
11 1 (0.026%) Oracle BPM
11 1 (0.026%) Oracle Subledger Accounting
11 1 (0.026%) Social Studio
11 1 (0.026%) Workday HCM
Cloud Services
1 1,070 (28.18%) AWS
2 785 (20.67%) Azure
3 537 (14.14%) Serverless
4 403 (10.61%) AWS Lambda
5 326 (8.59%) GCP
6 277 (7.30%) Amazon S3
7 219 (5.77%) Amazon SQS
8 210 (5.53%) GitHub
9 193 (5.08%) AWS Step Functions
10 142 (3.74%) npm
11 103 (2.71%) SaaS
12 102 (2.69%) Power Platform
13 98 (2.58%) AWS CloudFormation
14 94 (2.48%) Amazon EC2
15 88 (2.32%) PaaS
16 60 (1.58%) IaaS
17 59 (1.55%) Power Automate
18 54 (1.42%) PowerApps
19 52 (1.37%) Cloud Computing
20 50 (1.32%) Yarn
Communications & Networking
1 112 (2.95%) HTTP
2 52 (1.37%) Internet
3 26 (0.68%) RTMP
4 21 (0.55%) SAN
5 20 (0.53%) AMQP
6 19 (0.50%) NAS
7 18 (0.47%) Intranet
8 17 (0.45%) DNS
8 17 (0.45%) Firewall
9 16 (0.42%) HTTPS
10 13 (0.34%) SSH
10 13 (0.34%) TCP/IP
10 13 (0.34%) WAN
11 9 (0.24%) SSL
12 8 (0.21%) SMTP
13 7 (0.18%) BGP
13 7 (0.18%) LAN
13 7 (0.18%) PuTTY
14 6 (0.16%) DHCP
14 6 (0.16%) Kerberos
Database & Business Intelligence
1 332 (8.74%) SQL Server
2 297 (7.82%) Amazon DynamoDB
3 214 (5.64%) Amazon RDS
4 170 (4.48%) MongoDB
5 166 (4.37%) Relational Database
6 164 (4.32%) NoSQL
7 157 (4.13%) MySQL
8 155 (4.08%) PostgreSQL
9 70 (1.84%) Power BI
10 51 (1.34%) Redis
11 45 (1.19%) Big Data
12 41 (1.08%) Azure SQL Database
13 37 (0.97%) SQL Server Reporting Services
14 36 (0.95%) SQL Server Integration Services
15 34 (0.90%) RDBMS
16 32 (0.84%) Data Lake
16 32 (0.84%) Data Warehouse
17 25 (0.66%) Amazon Athena
17 25 (0.66%) Neo4j
18 24 (0.63%) DB2
Development Applications
1 565 (14.88%) Git (software)
2 404 (10.64%) Jenkins
3 254 (6.69%) JIRA
4 145 (3.82%) Maven
5 138 (3.63%) webpack
6 124 (3.27%) Cypress.io
7 121 (3.19%) Jasmine
8 119 (3.13%) TeamCity
9 112 (2.95%) Selenium
10 111 (2.92%) Cucumber
11 95 (2.50%) Mocha
12 94 (2.48%) GitLab
13 71 (1.87%) Karma Test Runner
14 69 (1.82%) JUnit
15 68 (1.79%) Subversion
16 66 (1.74%) Bitbucket
17 65 (1.71%) Gradle
18 60 (1.58%) Grunt
19 53 (1.40%) gulp
20 51 (1.34%) CircleCI
General
1 1,108 (29.18%) Finance
2 663 (17.46%) Social Skills
3 463 (12.19%) Front Office
4 394 (10.38%) Banking
5 197 (5.19%) Analytical Skills
6 137 (3.61%) Investment Banking
7 136 (3.58%) Marketing
8 113 (2.98%) Presentation Skills
9 101 (2.66%) Retail
10 95 (2.50%) Public Sector
11 48 (1.26%) Telecoms
12 38 (1.00%) Publishing
13 36 (0.95%) Games
13 36 (0.95%) Manufacturing
14 30 (0.79%) Documentation Skills
15 26 (0.68%) Financial Institution
16 23 (0.61%) Legal
17 22 (0.58%) Advertising
17 22 (0.58%) Retail Banking
18 19 (0.50%) Inclusion and Diversity
Job Titles
1 2,602 (68.53%) Developer
2 709 (18.67%) React Developer
3 484 (12.75%) JavaScript Developer
4 452 (11.90%) Full Stack Developer
5 396 (10.43%) Senior Developer
6 390 (10.27%) Software Engineer
7 329 (8.66%) Front End Developer (Client-Side Developer)
8 235 (6.19%) Developer/Software Engineer
8 235 (6.19%) Python Developer
9 202 (5.32%) Java Developer
10 189 (4.98%) Architect
11 174 (4.58%) JavaScript Engineer
12 173 (4.56%) Angular Developer
13 155 (4.08%) UI Developer
14 150 (3.95%) Node.js Developer
15 140 (3.69%) AWS Engineer
16 135 (3.56%) AWS Developer
17 134 (3.53%) .NET Developer
18 130 (3.42%) Lead Developer
19 120 (3.16%) C# Developer
Libraries, Frameworks & Software Standards
1 1,874 (49.35%) React
2 1,401 (36.90%) HTML
3 1,277 (33.63%) CSS
4 1,134 (29.87%) Node.js
5 854 (22.49%) AngularJS
6 694 (18.28%) Web Services
7 538 (14.17%) .NET
8 524 (13.80%) HTML5
9 463 (12.19%) REST
10 350 (9.22%) Redux
11 327 (8.61%) RESTful
12 298 (7.85%) CSS3
13 283 (7.45%) GraphQL
14 278 (7.32%) Vue.js
15 265 (6.98%) Material-UI
16 249 (6.56%) Spring
17 219 (5.77%) Sass
18 213 (5.61%) JSON
19 201 (5.29%) Jest
20 181 (4.77%) jQuery
Miscellaneous
1 347 (9.14%) User Experience
2 197 (5.19%) Foreign Exchange (FX)
3 161 (4.24%) Fixed Income
4 155 (4.08%) Equities
5 149 (3.92%) Greenfield Project
6 145 (3.82%) Derivative
7 144 (3.79%) Mobile App
8 110 (2.90%) Hedge funds
9 92 (2.42%) Cloud Native
10 86 (2.26%) Data Protection Act
11 77 (2.03%) Algorithms
12 76 (2.00%) Data Structures
13 66 (1.74%) Enterprise Software
14 52 (1.37%) Public Cloud
15 44 (1.16%) Self-Motivation
16 41 (1.08%) Legacy Applications
17 39 (1.03%) Credit Risk
18 37 (0.97%) Management Information System
19 26 (0.68%) Social Media
20 25 (0.66%) Data Centre
Operating Systems
1 263 (6.93%) Linux
2 150 (3.95%) Windows
3 129 (3.40%) Unix
4 76 (2.00%) Apple iOS
5 67 (1.76%) Android
6 24 (0.63%) Red Hat Enterprise Linux
7 21 (0.55%) Windows Server
8 10 (0.26%) Mac OS
8 10 (0.26%) Mac OS X
9 9 (0.24%) Ubuntu
10 7 (0.18%) Windows 10
11 6 (0.16%) Solaris
12 5 (0.13%) Debian
13 3 (0.079%) Windows Server 2012
14 2 (0.053%) AIX
14 2 (0.053%) Embedded Linux
14 2 (0.053%) Windows Server 2008
14 2 (0.053%) Windows Server 2016
15 1 (0.026%) CentOS
15 1 (0.026%) Windows 7
Processes & Methodologies
1 1,744 (45.93%) Agile Software Development
2 1,046 (27.55%) Full Stack Development
3 825 (21.73%) Software Engineering
4 760 (20.02%) DevOps
5 674 (17.75%) TDD
6 557 (14.67%) Front End Development
7 516 (13.59%) Test Automation
8 512 (13.48%) Microservices
9 439 (11.56%) Asset Management
10 417 (10.98%) Scrum
11 325 (8.56%) Investment Management
12 321 (8.45%) Continuous Integration
13 318 (8.38%) Problem-Solving
14 294 (7.74%) Analytics
15 273 (7.19%) SDLC
16 264 (6.95%) Web Development
17 258 (6.79%) Unit Testing
18 235 (6.19%) BDD
19 214 (5.64%) E-Commerce
20 188 (4.95%) MVC
Programming Languages
1 1,211 (31.89%) TypeScript
2 1,092 (28.76%) Java
3 894 (23.54%) Python
4 681 (17.94%) SQL
5 630 (16.59%) C#
6 192 (5.06%) ES6
7 190 (5.00%) Kotlin
8 165 (4.35%) PHP
9 133 (3.50%) PowerShell
10 130 (3.42%) C++
11 120 (3.16%) Bash Shell
12 104 (2.74%) Scala
13 100 (2.63%) Ruby
14 84 (2.21%) Go
15 66 (1.74%) C
15 66 (1.74%) Java 8
16 48 (1.26%) Shell Script
17 46 (1.21%) Apex Code
18 40 (1.05%) Perl
19 37 (0.97%) T-SQL
Qualifications
1 204 (5.37%) Degree
2 129 (3.40%) Security Cleared
3 105 (2.77%) SC Cleared
4 44 (1.16%) Computer Science Degree
5 20 (0.53%) Master's Degree
6 18 (0.47%) AWS Certification
7 9 (0.24%) DV Cleared
8 8 (0.21%) Numerate Degree
9 7 (0.18%) ITIL Certification
10 6 (0.16%) BPSS Clearance
10 6 (0.16%) ISTQB
11 4 (0.11%) ISTQB Foundation Certification
12 3 (0.079%) CISSP
12 3 (0.079%) Sun Certification
13 2 (0.053%) ISEB
13 2 (0.053%) Microsoft Certification
14 1 (0.026%) CTC Cleared
14 1 (0.026%) DBS Check
14 1 (0.026%) OSCP
14 1 (0.026%) Postgraduate
Quality Assurance & Compliance
1 209 (5.50%) Accessibility
2 144 (3.79%) QA
3 32 (0.84%) WCAG
4 28 (0.74%) Data Quality
5 17 (0.45%) GDPR
6 14 (0.37%) GRC
7 11 (0.29%) PMO
8 9 (0.24%) WAI
9 4 (0.11%) SLA
10 2 (0.053%) Sarbanes-Oxley
11 1 (0.026%) MiFID
11 1 (0.026%) PCI DSS
11 1 (0.026%) Section 508
11 1 (0.026%) SNOMED CT
11 1 (0.026%) SOC 2
System Software
1 671 (17.67%) Docker
2 55 (1.45%) Active Directory
3 8 (0.21%) Virtual Machines
3 8 (0.21%) VMware Infrastructure
4 5 (0.13%) Apache ZooKeeper
4 5 (0.13%) Virtual Servers
5 4 (0.11%) NFS
6 3 (0.079%) KVM
6 3 (0.079%) Oracle RAC
6 3 (0.079%) Virtual Desktop
6 3 (0.079%) VMware ESXi
7 2 (0.053%) Ceph
7 2 (0.053%) Hyper-V
7 2 (0.053%) LXC
7 2 (0.053%) SRDF
7 2 (0.053%) vSphere
7 2 (0.053%) Xen
8 1 (0.026%) GeoWebCache
8 1 (0.026%) OpenDJ
8 1 (0.026%) RACF
Systems Management
1 619 (16.30%) Kubernetes
2 473 (12.46%) Terraform
3 144 (3.79%) Ansible
4 58 (1.53%) Puppet
5 43 (1.13%) Grafana
6 34 (0.90%) Prometheus
7 30 (0.79%) Opscode Chef
8 23 (0.61%) Kibana
9 16 (0.42%) Graphite
10 13 (0.34%) Istio
11 11 (0.29%) logstash
11 11 (0.29%) Single Sign-On
12 8 (0.21%) Argo
12 8 (0.21%) Packer
13 6 (0.16%) Kubeflow
13 6 (0.16%) Nagios
13 6 (0.16%) Netcool
14 5 (0.13%) CSIRT
15 4 (0.11%) Consul
15 4 (0.11%) Opsgenie
Vendors
1 241 (6.35%) Microsoft
2 219 (5.77%) Oracle
3 123 (3.24%) Adobe
4 114 (3.00%) Salesforce.com
5 105 (2.77%) Google
6 67 (1.76%) Splunk
7 60 (1.58%) SAP
8 42 (1.11%) MuleSoft
9 33 (0.87%) ServiceNow
10 29 (0.76%) Atlassian
11 26 (0.68%) New Relic
12 21 (0.55%) Alibaba
12 21 (0.55%) AppDynamics
12 21 (0.55%) Pega
13 20 (0.53%) IBM
14 19 (0.50%) Databricks
14 19 (0.50%) hybris
15 18 (0.47%) CA Agile Central
16 14 (0.37%) Nintex
16 14 (0.37%) Salesforce Marketing Cloud