Period
to 25 July 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 July 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 Jul 2021
Same period 2020 Same period 2019
Rank 13 12 7
Rank change year-on-year -1 -5 0
Contract jobs citing JavaScript 3,179 1,905 5,573
As % of all contract jobs advertised in London 10.74% 11.74% 13.76%
As % of the Programming Languages category 22.86% 23.44% 29.00%
Number of daily rates quoted 2,450 1,457 4,373
10th Percentile £387 £350 £363
25th Percentile £450 £438 £425
Median daily rate (50th Percentile) £525 £538 £500
Median % change year-on-year -2.33% +7.50% -
75th Percentile £638 £650 £588
90th Percentile £700 £725 £675
England median daily rate £500 £488 £475
% change year-on-year +2.56% +2.63% +5.56%
Number of hourly rates quoted 20 18 30
10th Percentile £34.75 £20.45 £19.91
25th Percentile £36.00 £24.69 £32.50
Median hourly rate £55.00 £47.75 £50.00
Median % change year-on-year +15.18% -4.50% +48.06%
75th Percentile £66.88 £63.00 £53.75
90th Percentile £69.58 £66.72 £122.50
England median hourly rate £50.00 £47.50 £50.00
% change year-on-year +5.26% -5.00% +17.65%

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 13,908 8,128 19,220
As % of all contract IT jobs advertised in London 46.99% 50.07% 47.47%
Number of daily rates quoted 10,375 6,043 14,643
10th Percentile £388 £363 £363
25th Percentile £463 £441 £425
Median daily rate (50th Percentile) £550 £525 £525
Median % change year-on-year +4.76% - +2.44%
75th Percentile £650 £638 £613
90th Percentile £725 £725 £688
England median daily rate £514 £500 £480
% change year-on-year +2.80% +4.17% +1.05%
Number of hourly rates quoted 78 68 105
10th Percentile £21.50 £22.50 £16.50
25th Percentile £34.91 £31.69 £21.25
Median hourly rate £45.00 £46.46 £44.50
Median % change year-on-year -3.14% +4.40% +6.89%
75th Percentile £61.75 £58.13 £52.50
90th Percentile £68.51 £64.09 £56.50
England median hourly rate £42.50 £42.50 £45.00
% change year-on-year - -5.56% +8.43%

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 July 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 July 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 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -2 336 £511 -0.24% 533
West London -12 38 £575 +7.48% 168
South London -5 25 £500 -4.76% 29
East London +7 20 £500 +6.10% 105
North London +5 1 £375 -28.57% 7
JavaScript
England

For the 6 months to 25 July 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 1,651 (51.93%) React
2 1,456 (45.80%) Agile Software Development
3 1,169 (36.77%) HTML
4 1,030 (32.40%) CSS
5 968 (30.45%) Node.js
6 954 (30.01%) TypeScript
7 928 (29.19%) AWS
8 910 (28.63%) Finance
9 898 (28.25%) Java
10 764 (24.03%) AngularJS
11 756 (23.78%) Python
12 742 (23.34%) Software Engineering
13 667 (20.98%) Azure
14 626 (19.69%) TDD
15 581 (18.28%) Web Services
16 577 (18.15%) Docker
17 571 (17.96%) SQL
18 570 (17.93%) DevOps
19 511 (16.07%) Git (software)
20 506 (15.92%) C#
21 490 (15.41%) Social Skills
22 488 (15.35%) .NET
23 485 (15.26%) Kubernetes
24 480 (15.10%) HTML5
25 458 (14.41%) Serverless
26 445 (14.00%) Front End Development
27 439 (13.81%) Front Office
28 430 (13.53%) Microservices
29 403 (12.68%) Asset Management
30 379 (11.92%) 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 90 (2.83%) CMS
2 85 (2.67%) Confluence
2 85 (2.67%) SharePoint
3 63 (1.98%) Apache
4 49 (1.54%) Elasticsearch
5 34 (1.07%) Tomcat
6 30 (0.94%) Adobe Experience Manager
7 29 (0.91%) Cloud Foundry
7 29 (0.91%) WordPress
8 28 (0.88%) nginx
9 25 (0.79%) Oracle SOA Suite
10 23 (0.72%) Headless CMS
10 23 (0.72%) IIS
11 20 (0.63%) Drupal
12 19 (0.60%) Apache Spark
13 18 (0.57%) JBoss
14 15 (0.47%) WebSphere
15 14 (0.44%) WebLogic
16 12 (0.38%) Umbraco
17 10 (0.31%) Red Hat Fuse
Applications
1 27 (0.85%) Photoshop
2 20 (0.63%) Microsoft Excel
3 18 (0.57%) Microsoft Office
4 16 (0.50%) Chatbot
5 12 (0.38%) Microsoft PowerPoint
6 11 (0.35%) Figma
7 10 (0.31%) Adobe XD
7 10 (0.31%) Sketch
8 9 (0.28%) Adobe Illustrator
8 9 (0.28%) InfoPath
9 3 (0.094%) Spreadsheet
10 2 (0.063%) GIMP
10 2 (0.063%) Maya
11 1 (0.031%) Adobe After Effects
11 1 (0.031%) Adobe Captivate
11 1 (0.031%) Adobe Premiere
11 1 (0.031%) Microsoft Project
11 1 (0.031%) MS Visio
11 1 (0.031%) S-PLUS
11 1 (0.031%) UXPin
Business Applications
1 35 (1.10%) Dynamics CRM
2 24 (0.75%) Magento
3 15 (0.47%) Shopify
4 8 (0.25%) Adobe Campaign
5 6 (0.19%) Payment Gateway
6 5 (0.16%) Salesforce.com CRM
7 4 (0.13%) Dynamics AX
7 4 (0.13%) Temenos T24
8 3 (0.094%) SAP Oil and Gas
9 2 (0.063%) Distributed Ledger
9 2 (0.063%) Oracle ERP
9 2 (0.063%) SAP Hybris
9 2 (0.063%) SAP S/4HANA
10 1 (0.031%) Endur
10 1 (0.031%) Maximo
10 1 (0.031%) NetSuite
10 1 (0.031%) Oracle Applications
10 1 (0.031%) Oracle Subledger Accounting
10 1 (0.031%) Summit
10 1 (0.031%) Tesseract
Cloud Services
1 928 (29.19%) AWS
2 667 (20.98%) Azure
3 458 (14.41%) Serverless
4 349 (10.98%) AWS Lambda
5 307 (9.66%) GCP
6 230 (7.23%) Amazon S3
7 186 (5.85%) Amazon SQS
8 172 (5.41%) AWS Step Functions
9 138 (4.34%) GitHub
10 100 (3.15%) npm
11 94 (2.96%) Power Platform
12 74 (2.33%) SaaS
13 61 (1.92%) PaaS
14 60 (1.89%) AWS CloudFormation
15 56 (1.76%) Amazon EC2
16 51 (1.60%) Azure Active Directory
17 50 (1.57%) IaaS
18 40 (1.26%) Dynamics 365
19 36 (1.13%) Azure Logic Apps
20 35 (1.10%) Power Automate
Communications & Networking
1 93 (2.93%) HTTP
2 33 (1.04%) Internet
3 19 (0.60%) DNS
3 19 (0.60%) SAN
4 18 (0.57%) NAS
5 17 (0.53%) AMQP
5 17 (0.53%) Firewall
6 15 (0.47%) HTTPS
7 12 (0.38%) SMTP
8 11 (0.35%) RTMP
8 11 (0.35%) SSL
9 10 (0.31%) TCP/IP
9 10 (0.31%) WAN
10 8 (0.25%) SSH
11 7 (0.22%) BGP
12 6 (0.19%) DHCP
12 6 (0.19%) PuTTY
12 6 (0.19%) SMS
13 5 (0.16%) DMARC
13 5 (0.16%) WinSCP
Database & Business Intelligence
1 257 (8.08%) SQL Server
2 245 (7.71%) Amazon DynamoDB
3 189 (5.95%) Amazon RDS
4 161 (5.06%) MongoDB
5 151 (4.75%) PostgreSQL
6 136 (4.28%) NoSQL
7 135 (4.25%) MySQL
8 124 (3.90%) Relational Database
9 81 (2.55%) Power BI
10 61 (1.92%) Redis
11 36 (1.13%) Azure SQL Database
12 30 (0.94%) Apache Cassandra
13 27 (0.85%) Big Data
14 25 (0.79%) Data Warehouse
14 25 (0.79%) Oracle Database
15 23 (0.72%) Data Lake
15 23 (0.72%) SQL Server Integration Services
16 22 (0.69%) DB2
17 21 (0.66%) SQL Server Reporting Services
18 19 (0.60%) RDBMS
Development Applications
1 511 (16.07%) Git (software)
2 374 (11.76%) Jenkins
3 213 (6.70%) JIRA
4 145 (4.56%) webpack
5 120 (3.77%) Jasmine
6 119 (3.74%) Cypress.io
7 116 (3.65%) Maven
8 99 (3.11%) Selenium
9 98 (3.08%) TeamCity
10 93 (2.93%) Cucumber
11 82 (2.58%) Mocha
12 75 (2.36%) JUnit
12 75 (2.36%) Karma Test Runner
13 70 (2.20%) GitLab
14 64 (2.01%) Subversion
15 61 (1.92%) gulp
16 57 (1.79%) Bitbucket
16 57 (1.79%) Gradle
17 53 (1.67%) Grunt
18 47 (1.48%) CircleCI
General
1 910 (28.63%) Finance
2 490 (15.41%) Social Skills
3 439 (13.81%) Front Office
4 343 (10.79%) Banking
5 161 (5.06%) Analytical Skills
6 109 (3.43%) Marketing
7 93 (2.93%) Investment Banking
8 89 (2.80%) Public Sector
9 78 (2.45%) Presentation Skills
10 67 (2.11%) Retail
11 49 (1.54%) Telecoms
12 48 (1.51%) Manufacturing
13 31 (0.98%) Games
14 28 (0.88%) Documentation Skills
15 27 (0.85%) Publishing
16 24 (0.75%) Electronics
17 18 (0.57%) Advertising
18 17 (0.53%) Financial Institution
19 16 (0.50%) Back Office
20 15 (0.47%) Pharmaceutical
Job Titles
1 2,266 (71.28%) Developer
2 669 (21.04%) React Developer
3 447 (14.06%) JavaScript Developer
4 396 (12.46%) Full Stack Developer
5 310 (9.75%) Front End Developer (Client-Side Developer)
6 300 (9.44%) Senior Developer
7 227 (7.14%) Software Engineer
8 198 (6.23%) AWS Developer
9 176 (5.54%) Java Developer
10 174 (5.47%) Python Developer
11 145 (4.56%) Architect
12 144 (4.53%) UI Developer
13 140 (4.40%) Node.js Developer
14 136 (4.28%) .NET Developer
15 134 (4.22%) Angular Developer
16 130 (4.09%) Developer/Software Engineer
17 103 (3.24%) C# Developer
18 99 (3.11%) Lead Developer
19 96 (3.02%) JavaScript Engineer
20 83 (2.61%) Front Office Developer
Libraries, Frameworks & Software Standards
1 1,651 (51.93%) React
2 1,169 (36.77%) HTML
3 1,030 (32.40%) CSS
4 968 (30.45%) Node.js
5 764 (24.03%) AngularJS
6 581 (18.28%) Web Services
7 488 (15.35%) .NET
8 480 (15.10%) HTML5
9 342 (10.76%) REST
10 327 (10.29%) Redux
11 275 (8.65%) GraphQL
12 256 (8.05%) Spring
13 252 (7.93%) RESTful
14 246 (7.74%) Vue.js
15 245 (7.71%) CSS3
16 239 (7.52%) Material-UI
17 203 (6.39%) jQuery
18 202 (6.35%) Jest
19 183 (5.76%) Sass
20 176 (5.54%) React Native
Miscellaneous
1 327 (10.29%) User Experience
2 179 (5.63%) Greenfield Project
3 144 (4.53%) Fixed Income
4 143 (4.50%) Foreign Exchange (FX)
5 133 (4.18%) Derivative
6 124 (3.90%) Equities
7 115 (3.62%) Mobile App
8 86 (2.71%) Hedge funds
9 82 (2.58%) Cloud Native
10 78 (2.45%) Data Structures
11 64 (2.01%) Enterprise Software
12 63 (1.98%) Algorithms
13 58 (1.82%) Data Protection Act
14 43 (1.35%) Management Information System
15 42 (1.32%) Self-Motivation
16 40 (1.26%) Legacy Applications
17 36 (1.13%) Credit Risk
17 36 (1.13%) Public Cloud
18 33 (1.04%) Legacy Systems
19 26 (0.82%) Data Centre
Operating Systems
1 195 (6.13%) Linux
2 112 (3.52%) Windows
3 93 (2.93%) Unix
4 86 (2.71%) Apple iOS
5 79 (2.49%) Android
6 18 (0.57%) Red Hat Enterprise Linux
7 14 (0.44%) Mac OS
8 13 (0.41%) Mac OS X
9 12 (0.38%) Windows Server
10 11 (0.35%) Ubuntu
11 8 (0.25%) CentOS
11 8 (0.25%) Windows 10
12 6 (0.19%) Solaris
13 5 (0.16%) CoreOS
13 5 (0.16%) Debian
14 4 (0.13%) Windows Server 2019
15 2 (0.063%) Tizen
15 2 (0.063%) VMS
15 2 (0.063%) Windows Server 2012
15 2 (0.063%) Windows Server 2016
Processes & Methodologies
1 1,456 (45.80%) Agile Software Development
2 742 (23.34%) Software Engineering
3 626 (19.69%) TDD
4 570 (17.93%) DevOps
5 445 (14.00%) Front End Development
6 430 (13.53%) Microservices
7 403 (12.68%) Asset Management
8 373 (11.73%) Test Automation
9 331 (10.41%) Investment Management
9 331 (10.41%) Scrum
10 310 (9.75%) Continuous Integration
11 247 (7.77%) Web Development
12 242 (7.61%) Analytics
13 213 (6.70%) Unit Testing
14 212 (6.67%) Problem-Solving
15 202 (6.35%) BDD
16 200 (6.29%) MVC
17 191 (6.01%) OO
18 188 (5.91%) SDLC
19 159 (5.00%) Mentoring
Programming Languages
1 954 (30.01%) TypeScript
2 898 (28.25%) Java
3 756 (23.78%) Python
4 571 (17.96%) SQL
5 506 (15.92%) C#
6 196 (6.17%) ES6
7 184 (5.79%) Kotlin
8 145 (4.56%) PHP
9 132 (4.15%) PowerShell
10 114 (3.59%) C++
11 94 (2.96%) Java 8
12 89 (2.80%) Ruby
13 78 (2.45%) Bash Shell
14 76 (2.39%) Scala
15 75 (2.36%) Go
16 46 (1.45%) PL/SQL
17 41 (1.29%) C
18 36 (1.13%) Apex Code
19 31 (0.98%) T-SQL
20 30 (0.94%) Perl
Qualifications
1 192 (6.04%) Degree
2 138 (4.34%) Security Cleared
3 112 (3.52%) SC Cleared
4 41 (1.29%) Computer Science Degree
5 28 (0.88%) AWS Certification
6 26 (0.82%) Master's Degree
7 9 (0.28%) DV Cleared
8 8 (0.25%) ITIL Certification
8 8 (0.25%) Numerate Degree
9 6 (0.19%) ISTQB
10 5 (0.16%) BPSS Clearance
11 4 (0.13%) ISTQB Foundation Certification
11 4 (0.13%) PhD
12 3 (0.094%) Postgraduate
13 2 (0.063%) CTC Cleared
13 2 (0.063%) Microsoft Certification
14 1 (0.031%) CFA
14 1 (0.031%) Cisco Certification
14 1 (0.031%) CISSP
14 1 (0.031%) Sun Certification
Quality Assurance & Compliance
1 177 (5.57%) Accessibility
2 142 (4.47%) QA
3 22 (0.69%) Data Quality
3 22 (0.69%) WCAG
4 14 (0.44%) GDPR
4 14 (0.44%) GRC
5 5 (0.16%) MiFID
5 5 (0.16%) SLA
6 4 (0.13%) WAI
7 1 (0.031%) PMO
7 1 (0.031%) Sarbanes-Oxley
7 1 (0.031%) Section 508
7 1 (0.031%) SNOMED CT
System Software
1 577 (18.15%) Docker
2 51 (1.60%) Active Directory
3 8 (0.25%) VMware Infrastructure
4 7 (0.22%) Apache ZooKeeper
5 6 (0.19%) Virtual Machines
6 5 (0.16%) Virtual Servers
7 4 (0.13%) NFS
7 4 (0.13%) Virtual Desktop
8 3 (0.094%) Oracle RAC
8 3 (0.094%) VMware ESXi
9 2 (0.063%) Ceph
9 2 (0.063%) Hyper-V
9 2 (0.063%) KVM
9 2 (0.063%) Samba
9 2 (0.063%) SRDF
9 2 (0.063%) Xen
10 1 (0.031%) OpenAM
10 1 (0.031%) RACF
Systems Management
1 485 (15.26%) Kubernetes
2 379 (11.92%) Terraform
3 121 (3.81%) Ansible
4 52 (1.64%) Puppet
5 29 (0.91%) Opscode Chef
6 23 (0.72%) Grafana
7 15 (0.47%) Single Sign-On
8 14 (0.44%) Istio
9 13 (0.41%) Kibana
10 11 (0.35%) Graphite
11 10 (0.31%) Prometheus
12 6 (0.19%) Nagios
13 5 (0.16%) CSIRT
14 4 (0.13%) Galera Cluster
14 4 (0.13%) Knative
14 4 (0.13%) logstash
14 4 (0.13%) Packer
15 3 (0.094%) Fortio
15 3 (0.094%) Kiali
15 3 (0.094%) Opsgenie
Vendors
1 226 (7.11%) Oracle
2 211 (6.64%) Microsoft
3 86 (2.71%) Adobe
3 86 (2.71%) Salesforce.com
4 77 (2.42%) Google
5 49 (1.54%) Splunk
6 45 (1.42%) SAP
7 40 (1.26%) ServiceNow
8 33 (1.04%) MuleSoft
9 23 (0.72%) New Relic
10 22 (0.69%) DevExpress
11 21 (0.66%) Alibaba
12 19 (0.60%) CA Agile Central
13 17 (0.53%) Atlassian
14 14 (0.44%) Pega
14 14 (0.44%) Telerik
15 13 (0.41%) Dynatrace
15 13 (0.41%) hybris
15 13 (0.41%) IBM
16 12 (0.38%) VMware