Period
to 27 February 2020

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 27 February 2020 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
27 Feb 2020
Same period 2019 Same period 2018
Rank 10 6 8
Rank change year-on-year -4 +2 -1
Contract jobs citing JavaScript 3,359 5,823 5,818
As % of all contract IT jobs advertised in London 11.94% 13.24% 12.37%
As % of the Programming Languages category 25.17% 26.90% 25.88%
Number of daily rates quoted 2,478 4,460 4,647
London median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +11.11%
10th Percentile £363 £356 £350
90th Percentile £688 £650 £638
England median daily rate £475 £475 £450
% change year-on-year - +5.56% +5.88%
Number of hourly rates quoted 22 18 32
London median hourly rate £49.64 £36.00 £27.00
Median hourly rate % change year-on-year +37.88% +33.33% -36.47%
10th Percentile £36.70 £28.45 £21.35
90th Percentile £78.75 £53.75 £46.68
England median hourly rate £36.70 £45.00 £43.00
% change year-on-year -18.44% +4.65% +7.50%

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 13,344 21,646 22,485
As % of all contract IT jobs advertised in London 47.41% 49.20% 47.80%
Number of daily rates quoted 9,805 16,421 17,276
London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +5.26%
10th Percentile £375 £363 £350
90th Percentile £688 £675 £675
England median daily rate £488 £485 £475
% change year-on-year +0.52% +2.11% +11.76%
Number of hourly rates quoted 115 118 174
London median hourly rate £45.00 £36.00 £35.00
Median hourly rate % change year-on-year +25.00% +2.86% -18.13%
10th Percentile £22.50 £18.70 £17.81
90th Percentile £64.43 £53.75 £52.77
England median hourly rate £42.50 £42.50 £40.00
% change year-on-year - +6.25% -

JavaScript
Job Vacancy Trend in London

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

Job vacancy trend for JavaScript in London

JavaScript
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JavaScript in London.

Contractor daily rate trend for JavaScript in London

JavaScript
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript in London over the 6 months to 27 February 2020.

Contractor daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JavaScript in London.

Contractor hourly rate trend for JavaScript in London

JavaScript
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing JavaScript in London over the 6 months to 27 February 2020.

Contractor 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 27 February 2020. 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 -4 675 £520 +4.00% 626
West London -4 113 £500 +11.11% 217
South London +1 78 £450 - 48
East London -11 29 £450 -14.29% 119
North London -8 5 £525 +31.25% 24
JavaScript
England

For the 6 months to 27 February 2020, 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 1,606 (47.81%) Agile Software Development
2 1,469 (43.73%) HTML
3 1,387 (41.29%) CSS
4 1,193 (35.52%) React
5 994 (29.59%) AngularJS
6 884 (26.32%) Node.js
7 844 (25.13%) Java
8 731 (21.76%) TDD
9 724 (21.55%) C#
10 687 (20.45%) Finance
11 685 (20.39%) .NET
12 644 (19.17%) Front End Development
13 625 (18.61%) AWS
14 556 (16.55%) HTML5
15 555 (16.52%) Azure
15 555 (16.52%) Git (software)
16 553 (16.46%) Python
17 516 (15.36%) SQL
18 498 (14.83%) DevOps
19 494 (14.71%) TypeScript
20 481 (14.32%) Web Services
21 467 (13.90%) Test Automation
22 450 (13.40%) Redux
23 429 (12.77%) Microservices
24 398 (11.85%) Continuous Integration
25 389 (11.58%) Scrum
26 384 (11.43%) SQL Server
27 379 (11.28%) Software Engineering
28 367 (10.93%) Docker
29 360 (10.72%) User Experience

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
1 111 (3.30%) CMS
2 108 (3.22%) Elasticsearch
3 62 (1.85%) Confluence
4 58 (1.73%) SharePoint
5 49 (1.46%) Apache
6 36 (1.07%) IIS
7 35 (1.04%) WebSphere
8 33 (0.98%) Drupal
9 27 (0.80%) Adobe Experience Manager
10 26 (0.77%) Apache Spark
10 26 (0.77%) WordPress
11 25 (0.74%) WebLogic
12 19 (0.57%) Umbraco
13 17 (0.51%) Sitecore CMS
14 16 (0.48%) Oracle SOA Suite
15 15 (0.45%) nginx
16 14 (0.42%) SAS
17 13 (0.39%) Tomcat
18 12 (0.36%) JBoss
19 11 (0.33%) Moodle
Applications
1 33 (0.98%) Photoshop
2 26 (0.77%) Sketch
3 17 (0.51%) Microsoft Excel
4 12 (0.36%) Adobe Illustrator
4 12 (0.36%) InVision
5 6 (0.18%) Adobe Creative Suite
5 6 (0.18%) Adobe XD
6 5 (0.15%) InDesign
7 4 (0.12%) MS Visio
7 4 (0.12%) Zeplin
8 3 (0.089%) Microsoft Office
8 3 (0.089%) UXPin
9 2 (0.060%) Chatbot
9 2 (0.060%) InfoPath
9 2 (0.060%) Lectora
9 2 (0.060%) Microsoft PowerPoint
10 1 (0.030%) Adobe After Effects
10 1 (0.030%) Figma
10 1 (0.030%) Marvel
10 1 (0.030%) Windchill
Business Applications
1 35 (1.04%) Dynamics CRM
2 22 (0.65%) Magento
3 13 (0.39%) Shopify
4 11 (0.33%) Payment Gateway
5 6 (0.18%) SAP Hybris
5 6 (0.18%) Visualfiles
6 5 (0.15%) Eloqua
7 4 (0.12%) NetSuite
7 4 (0.12%) SAP Oil and Gas
7 4 (0.12%) thinkFolio
8 2 (0.060%) Adobe Campaign
8 2 (0.060%) Distributed Ledger
8 2 (0.060%) R3 Corda
8 2 (0.060%) Salesforce.com CRM
8 2 (0.060%) Social Studio
9 1 (0.030%) Cognos Business Intelligence
9 1 (0.030%) SDL Web 8
Cloud Services
1 625 (18.61%) AWS
2 555 (16.52%) Azure
3 214 (6.37%) GCP
4 193 (5.75%) GitHub
5 129 (3.84%) Serverless
6 76 (2.26%) AWS Lambda
7 72 (2.14%) npm
8 60 (1.79%) PaaS
9 54 (1.61%) SaaS
10 53 (1.58%) Amazon S3
11 37 (1.10%) Amazon SQS
12 31 (0.92%) AWS CloudFormation
13 29 (0.86%) Amazon ECS
13 29 (0.86%) Heroku
14 28 (0.83%) Cloud Computing
15 27 (0.80%) Amazon EC2
15 27 (0.80%) Dynamics 365
15 27 (0.80%) Office 365
15 27 (0.80%) OpenShift
15 27 (0.80%) Power Platform
Communications & Networking
1 81 (2.41%) HTTP
2 37 (1.10%) Firewall
3 34 (1.01%) SSL
4 23 (0.68%) Internet
5 21 (0.63%) TCP/IP
6 19 (0.57%) DNS
7 14 (0.42%) HTTPS
8 13 (0.39%) Network Security
9 10 (0.30%) Intranet
9 10 (0.30%) RTMP
10 5 (0.15%) AMQP
10 5 (0.15%) FTP
10 5 (0.15%) Wireshark
11 4 (0.12%) DMZ
11 4 (0.12%) Extranet
11 4 (0.12%) Skype
11 4 (0.12%) SMTP
11 4 (0.12%) SSH
11 4 (0.12%) VPN
12 3 (0.089%) MQTT
Database & Business Intelligence
1 384 (11.43%) SQL Server
2 200 (5.95%) NoSQL
3 194 (5.78%) MySQL
4 181 (5.39%) MongoDB
5 126 (3.75%) PostgreSQL
6 124 (3.69%) Relational Database
7 104 (3.10%) Redis
8 56 (1.67%) Big Data
9 46 (1.37%) Amazon DynamoDB
10 41 (1.22%) Azure SQL Database
11 38 (1.13%) SQL Server Integration Services
12 36 (1.07%) Amazon Athena
13 33 (0.98%) RDBMS
14 31 (0.92%) SQL Server Reporting Services
15 30 (0.89%) Amazon RDS
15 30 (0.89%) Apache Cassandra
15 30 (0.89%) SQL Server Analysis Services
16 28 (0.83%) Microsoft Analysis Services
16 28 (0.83%) Oracle Database
17 27 (0.80%) Hadoop
Development Applications
1 555 (16.52%) Git (software)
2 319 (9.50%) Jenkins
3 210 (6.25%) JIRA
4 158 (4.70%) Selenium
5 144 (4.29%) webpack
6 116 (3.45%) gulp
7 107 (3.19%) TeamCity
8 99 (2.95%) Cucumber
9 94 (2.80%) Team Foundation Server
10 89 (2.65%) Visual Studio
11 82 (2.44%) Mocha
12 75 (2.23%) Octopus Deploy
13 71 (2.11%) Grunt
14 62 (1.85%) Jasmine
15 61 (1.82%) Bitbucket
16 56 (1.67%) Maven
16 56 (1.67%) Visual Studio Team System
17 47 (1.40%) JUnit
18 46 (1.37%) CircleCI
19 45 (1.34%) Karma Test Runner
General
1 687 (20.45%) Finance
2 314 (9.35%) Banking
3 269 (8.01%) Front Office
4 123 (3.66%) Investment Banking
5 113 (3.36%) Public Sector
6 107 (3.19%) Retail
7 103 (3.07%) Marketing
8 60 (1.79%) Games
9 41 (1.22%) Back Office
10 39 (1.16%) Law
11 29 (0.86%) Telecoms
12 28 (0.83%) Publishing
13 23 (0.68%) Advertising
14 20 (0.60%) Manufacturing
15 19 (0.57%) Electronics
16 12 (0.36%) Police
17 11 (0.33%) Legal
18 9 (0.27%) Retail Banking
19 8 (0.24%) Financial Institution
20 6 (0.18%) Automotive
Job Titles
1 2,519 (74.99%) Developer
2 561 (16.70%) React Developer
3 452 (13.46%) JavaScript Developer
4 421 (12.53%) Front End Developer (Client-Side Developer)
5 417 (12.41%) Full Stack Developer
6 347 (10.33%) Senior Developer
7 255 (7.59%) Java Developer
8 228 (6.79%) .NET Developer
9 225 (6.70%) Angular Developer
10 210 (6.25%) C# Developer
11 145 (4.32%) Node.js Developer
12 132 (3.93%) Python Developer
13 127 (3.78%) Architect
13 127 (3.78%) Software Engineer
14 117 (3.48%) UI Developer
15 104 (3.10%) HTML Developer
16 103 (3.07%) AWS Developer
17 93 (2.77%) Senior React Developer
18 84 (2.50%) JavaScript Engineer
19 83 (2.47%) C# .NET Developer
Libraries, Frameworks & Software Standards
1 1,469 (43.73%) HTML
2 1,387 (41.29%) CSS
3 1,193 (35.52%) React
4 994 (29.59%) AngularJS
5 884 (26.32%) Node.js
6 685 (20.39%) .NET
7 556 (16.55%) HTML5
8 481 (14.32%) Web Services
9 450 (13.40%) Redux
10 324 (9.65%) REST
11 319 (9.50%) jQuery
12 315 (9.38%) CSS3
13 298 (8.87%) Vue.js
14 272 (8.10%) RESTful
15 271 (8.07%) ASP.NET
16 259 (7.71%) Sass
17 227 (6.76%) JSON
18 190 (5.66%) XML
19 182 (5.42%) Spring
20 181 (5.39%) Twitter Bootstrap
Miscellaneous
1 360 (10.72%) User Experience
2 272 (8.10%) Greenfield Project
3 248 (7.38%) Analytical Skills
4 214 (6.37%) Foreign Exchange (FX)
5 167 (4.97%) Fixed Income
6 155 (4.61%) Equities
7 154 (4.58%) Derivative
8 134 (3.99%) Mobile App
9 125 (3.72%) Hedge funds
10 75 (2.23%) Blog
11 72 (2.14%) Enterprise Software
12 68 (2.02%) W3C
13 65 (1.94%) Data Structures
14 61 (1.82%) Algorithms
15 47 (1.40%) Virtual Team
16 29 (0.86%) Public Cloud
17 28 (0.83%) Self-Motivation
18 25 (0.74%) Cloud Native
19 24 (0.71%) Reference Data
20 21 (0.63%) Equity Derivative
Operating Systems
1 209 (6.22%) Linux
2 98 (2.92%) Windows
3 86 (2.56%) Android
4 80 (2.38%) Unix
5 62 (1.85%) Apple iOS
6 19 (0.57%) Mac OS X
7 16 (0.48%) Mac OS
8 11 (0.33%) Windows Server
9 9 (0.27%) CentOS
9 9 (0.27%) Red Hat Enterprise Linux
10 8 (0.24%) AIX
11 7 (0.21%) CoreOS
12 6 (0.18%) Ubuntu
13 4 (0.12%) VMS
14 3 (0.089%) Windows 10
14 3 (0.089%) Windows Server 2012
15 2 (0.060%) Windows Server 2008
15 2 (0.060%) Windows XP
16 1 (0.030%) Solaris
16 1 (0.030%) Windows Vista
Processes & Methodologies
1 1,606 (47.81%) Agile Software Development
2 731 (21.76%) TDD
3 644 (19.17%) Front End Development
4 498 (14.83%) DevOps
5 467 (13.90%) Test Automation
6 429 (12.77%) Microservices
7 398 (11.85%) Continuous Integration
8 389 (11.58%) Scrum
9 379 (11.28%) Software Engineering
10 323 (9.62%) MVC
11 302 (8.99%) BDD
12 293 (8.72%) OO
13 246 (7.32%) Web Development
14 214 (6.37%) E-Commerce
15 206 (6.13%) Problem-Solving
16 204 (6.07%) Open Source
17 197 (5.86%) Analytics
18 191 (5.69%) Fintech
19 179 (5.33%) Computer Science
20 178 (5.30%) Asset Management
Programming Languages
1 844 (25.13%) Java
2 724 (21.55%) C#
3 553 (16.46%) Python
4 516 (15.36%) SQL
5 494 (14.71%) TypeScript
6 265 (7.89%) ES6
7 242 (7.20%) Ruby
8 189 (5.63%) PHP
9 124 (3.69%) C++
10 100 (2.98%) Scala
11 92 (2.74%) Go
12 85 (2.53%) Java 8
13 69 (2.05%) Kotlin
14 63 (1.88%) R
15 51 (1.52%) PowerShell
16 47 (1.40%) Bash Shell
16 47 (1.40%) Groovy
17 46 (1.37%) T-SQL
18 34 (1.01%) F#
19 33 (0.98%) PL/SQL
Qualifications
1 191 (5.69%) Security Cleared
2 179 (5.33%) Degree
3 132 (3.93%) SC Cleared
4 75 (2.23%) Computer Science Degree
5 32 (0.95%) Master's Degree
6 25 (0.74%) BPSS Clearance
7 21 (0.63%) BC Cleared
8 15 (0.45%) DV Cleared
9 13 (0.39%) Microsoft Certification
10 11 (0.33%) CTC Cleared
11 10 (0.30%) ISTQB
12 8 (0.24%) DBS Check
12 8 (0.24%) Numerate Degree
13 6 (0.18%) Postgraduate
14 4 (0.12%) ISEB
15 2 (0.060%) AWS Certification
15 2 (0.060%) Cisco Certification
15 2 (0.060%) CISSP
15 2 (0.060%) CSPO
15 2 (0.060%) Sun Certification
Quality Assurance & Compliance
1 143 (4.26%) QA
2 73 (2.17%) WCAG
3 14 (0.42%) MiFID
4 7 (0.21%) SLA
5 4 (0.12%) Disclosure Scotland
5 4 (0.12%) ISO/IEC 27001
6 3 (0.089%) Data Quality
6 3 (0.089%) NIST
6 3 (0.089%) NIST 800
6 3 (0.089%) WAI
7 2 (0.060%) Basel III
7 2 (0.060%) GDPR
7 2 (0.060%) ISO 20022
7 2 (0.060%) PCI DSS
7 2 (0.060%) PMO
7 2 (0.060%) PSD2
7 2 (0.060%) Section 508
8 1 (0.030%) HL7
System Software
1 367 (10.93%) Docker
2 27 (0.80%) Active Directory
3 13 (0.39%) Virtual Machines
4 11 (0.33%) OpenAM
4 11 (0.33%) OpenDJ
5 5 (0.15%) zsh
6 3 (0.089%) HDFS
6 3 (0.089%) Oracle RAC
6 3 (0.089%) VMware Infrastructure
7 2 (0.060%) Apache ZooKeeper
7 2 (0.060%) LXC
7 2 (0.060%) Varnish
8 1 (0.030%) VMware ESXi
Systems Management
1 224 (6.67%) Kubernetes
2 166 (4.94%) Terraform
3 57 (1.70%) Ansible
4 34 (1.01%) Puppet
5 31 (0.92%) Opscode Chef
6 24 (0.71%) Single Sign-On
7 13 (0.39%) Grafana
8 12 (0.36%) SCCM
9 11 (0.33%) Kibana
9 11 (0.33%) Nagios
10 9 (0.27%) HP SiteScope
10 9 (0.27%) MIIS
11 8 (0.24%) Prometheus
12 7 (0.21%) CFEngine
12 7 (0.21%) Docker Swarm
13 5 (0.15%) Salt
14 4 (0.12%) Control-M
15 3 (0.089%) Istio
15 3 (0.089%) logstash
16 2 (0.060%) Consul
Vendors
1 262 (7.80%) Microsoft
2 146 (4.35%) Oracle
3 140 (4.17%) Google
4 55 (1.64%) Adobe
5 50 (1.49%) Salesforce.com
6 45 (1.34%) SAP
7 39 (1.16%) ServiceNow
8 37 (1.10%) Remedy
9 35 (1.04%) Sitecore
10 32 (0.95%) hybris
11 24 (0.71%) IBM
12 19 (0.57%) Atlassian
12 19 (0.57%) Red Hat
12 19 (0.57%) Splunk
13 13 (0.39%) Xamarin
14 12 (0.36%) Bloomberg
14 12 (0.36%) Databricks
14 12 (0.36%) Sybase
15 11 (0.33%) ForgeRock
15 11 (0.33%) MuleSoft