Period
to 5 June 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 5 June 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
5 Jun 2020
Same period 2019 Same period 2018
Rank 10 6 7
Rank change year-on-year -4 +1 +1
Contract jobs citing JavaScript 2,247 5,340 5,890
As % of all contract jobs advertised in London 12.09% 13.43% 13.07%
As % of the Programming Languages category 24.73% 28.17% 26.83%
Number of daily rates quoted 1,733 4,256 4,610
Median daily rate £538 £500 £500
Median daily rate % change year-on-year +7.50% - +8.11%
10th Percentile £358 £363 £356
90th Percentile £713 £650 £638
England median daily rate £475 £475 £450
% change year-on-year - +5.56% +5.88%
Number of hourly rates quoted 23 31 30
Median hourly rate £49.28 £50.00 £30.35
Median hourly rate % change year-on-year -1.45% +64.74% +8.39%
10th Percentile £21.70 £27.00 £17.52
90th Percentile £65.48 £122.50 £48.88
England median hourly rate £35.00 £50.00 £42.50
% change year-on-year -30.00% +17.65% +3.03%

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 9,085 18,959 21,957
As % of all contract IT jobs advertised in London 48.86% 47.68% 48.71%
Number of daily rates quoted 6,532 14,273 16,695
Median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +2.56%
10th Percentile £363 £363 £356
90th Percentile £700 £688 £675
England median daily rate £500 £480 £475
% change year-on-year +4.17% +1.05% +5.56%
Number of hourly rates quoted 102 129 202
Median hourly rate £35.00 £36.00 £42.27
Median hourly rate % change year-on-year -2.78% -14.82% -0.55%
10th Percentile £23.60 £19.78 £17.75
90th Percentile £63.75 £56.50 £59.59
Median hourly rate £35.00 £43.00 £41.00
% change year-on-year -18.60% +4.88% -1.20%

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 5 June 2020.

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 5 June 2020.

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 5 June 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 -5 381 £506 +1.25% 171
West London 0 82 £525 +16.67% 41
South London -7 66 £525 +16.67% 7
East London -8 20 £471 -10.24% 30
North London -7 4 £525 +31.25% 7
JavaScript
England

For the 6 months to 5 June 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 1,177 (52.38%) Agile Software Development
2 869 (38.67%) React
3 857 (38.14%) HTML
4 791 (35.20%) CSS
5 701 (31.20%) Java
6 670 (29.82%) AngularJS
7 577 (25.68%) Node.js
8 540 (24.03%) Finance
9 505 (22.47%) AWS
10 466 (20.74%) Web Services
11 450 (20.03%) Azure
12 446 (19.85%) DevOps
13 441 (19.63%) .NET
14 427 (19.00%) Python
15 419 (18.65%) TDD
16 415 (18.47%) C#
17 409 (18.20%) Front End Development
18 391 (17.40%) SQL
19 386 (17.18%) Software Engineering
20 374 (16.64%) Git (software)
21 361 (16.07%) TypeScript
22 345 (15.35%) HTML5
23 320 (14.24%) Banking
24 305 (13.57%) Microservices
25 304 (13.53%) Redux
26 299 (13.31%) Front Office
27 296 (13.17%) Test Automation
28 246 (10.95%) Scrum
29 239 (10.64%) Docker
30 236 (10.50%) 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
1 101 (4.49%) Elasticsearch
2 49 (2.18%) CMS
3 40 (1.78%) Apache
4 35 (1.56%) SharePoint
5 33 (1.47%) Confluence
6 27 (1.20%) Tomcat
6 27 (1.20%) WebLogic
7 26 (1.16%) Apache Spark
8 24 (1.07%) WebSphere
9 21 (0.93%) IIS
10 18 (0.80%) Oracle SOA Suite
11 16 (0.71%) Drupal
12 14 (0.62%) SAS
13 13 (0.58%) Adobe Experience Manager
14 8 (0.36%) nginx
14 8 (0.36%) WordPress
15 7 (0.31%) Apache Solr
15 7 (0.31%) Headless CMS
16 6 (0.27%) BizTalk Server
16 6 (0.27%) Cloud Foundry
Applications
1 25 (1.11%) Sketch
2 20 (0.89%) InVision
3 19 (0.85%) Photoshop
4 13 (0.58%) Zeplin
5 10 (0.45%) Acrobat
5 10 (0.45%) Microsoft Excel
6 7 (0.31%) Adobe XD
7 4 (0.18%) Chatbot
8 3 (0.13%) Microsoft Office
9 2 (0.089%) Adobe After Effects
9 2 (0.089%) Adobe Illustrator
9 2 (0.089%) Adobe Premiere
9 2 (0.089%) Lectora
10 1 (0.045%) Figma
10 1 (0.045%) SPSS
Business Applications
1 19 (0.85%) Dynamics CRM
2 16 (0.71%) Salesforce.com CRM
3 13 (0.58%) Magento
4 8 (0.36%) Oracle ERP
5 7 (0.31%) Payment Gateway
6 5 (0.22%) SAP Hybris
6 5 (0.22%) SAP Oil and Gas
6 5 (0.22%) Shopify
7 2 (0.089%) NetSuite
7 2 (0.089%) Visualfiles
8 1 (0.045%) Actimize
8 1 (0.045%) Adobe Campaign
8 1 (0.045%) SAP S/4HANA
8 1 (0.045%) Social Studio
Cloud Services
1 505 (22.47%) AWS
2 450 (20.03%) Azure
3 200 (8.90%) GCP
4 110 (4.90%) GitHub
5 102 (4.54%) Serverless
6 51 (2.27%) AWS Lambda
7 47 (2.09%) SaaS
8 46 (2.05%) PaaS
9 42 (1.87%) npm
10 30 (1.34%) Amazon EC2
11 28 (1.25%) Amazon SQS
11 28 (1.25%) OpenShift
12 27 (1.20%) Amazon ECS
13 23 (1.02%) Amazon EKS
14 19 (0.85%) Amazon S3
14 19 (0.85%) AWS CloudFormation
14 19 (0.85%) Heroku
15 15 (0.67%) Dynamics 365
15 15 (0.67%) Power Platform
16 13 (0.58%) IaaS
Communications & Networking
1 62 (2.76%) HTTP
2 22 (0.98%) SSL
3 21 (0.93%) Firewall
4 19 (0.85%) TCP/IP
5 15 (0.67%) Internet
5 15 (0.67%) RTMP
6 13 (0.58%) DNS
7 8 (0.36%) Network Security
8 7 (0.31%) AMQP
9 6 (0.27%) MQTT
10 5 (0.22%) DHCP
10 5 (0.22%) DOCSIS
10 5 (0.22%) Intranet
10 5 (0.22%) SNMP
11 4 (0.18%) HTTPS
12 3 (0.13%) DMZ
12 3 (0.13%) Extranet
12 3 (0.13%) Reverse Proxy
12 3 (0.13%) VoIP
12 3 (0.13%) VPN
Database & Business Intelligence
1 228 (10.15%) SQL Server
2 168 (7.48%) MySQL
3 162 (7.21%) NoSQL
4 131 (5.83%) MongoDB
5 101 (4.49%) Redis
6 93 (4.14%) PostgreSQL
7 83 (3.69%) Relational Database
8 50 (2.23%) Big Data
9 33 (1.47%) SQL Server Analysis Services
10 30 (1.34%) Azure SQL Database
10 30 (1.34%) Microsoft Analysis Services
11 27 (1.20%) SQL Server Integration Services
12 26 (1.16%) Data Warehouse
13 22 (0.98%) SQL Server Reporting Services
14 21 (0.93%) Apache Cassandra
15 19 (0.85%) Amazon RDS
16 17 (0.76%) Amazon Redshift
17 15 (0.67%) Blockchain
18 14 (0.62%) Cosmos DB
18 14 (0.62%) Oracle Database
Development Applications
1 374 (16.64%) Git (software)
2 232 (10.32%) Jenkins
3 110 (4.90%) JIRA
4 89 (3.96%) Selenium
5 74 (3.29%) webpack
6 72 (3.20%) TeamCity
7 64 (2.85%) Cucumber
8 49 (2.18%) Octopus Deploy
9 48 (2.14%) RStudio
10 46 (2.05%) Maven
11 45 (2.00%) gulp
11 45 (2.00%) JUnit
11 45 (2.00%) Mocha
12 42 (1.87%) CircleCI
13 40 (1.78%) Cypress.io
13 40 (1.78%) Team Foundation Server
14 38 (1.69%) Postman
15 36 (1.60%) Gradle
15 36 (1.60%) Visual Studio
16 33 (1.47%) Jasmine
General
1 540 (24.03%) Finance
2 320 (14.24%) Banking
3 299 (13.31%) Front Office
4 187 (8.32%) Investment Banking
5 73 (3.25%) Public Sector
6 49 (2.18%) Retail
7 40 (1.78%) Marketing
8 35 (1.56%) Games
9 22 (0.98%) Publishing
10 18 (0.80%) Back Office
11 15 (0.67%) Telecoms
12 11 (0.49%) Financial Institution
12 11 (0.49%) Legal
13 10 (0.45%) Advertising
13 10 (0.45%) Local Government
13 10 (0.45%) Manufacturing
14 9 (0.40%) Retail Banking
15 7 (0.31%) Law
16 5 (0.22%) Automotive
16 5 (0.22%) Electronics
Job Titles
1 1,626 (72.36%) Developer
2 346 (15.40%) React Developer
3 316 (14.06%) JavaScript Developer
4 252 (11.21%) Full Stack Developer
5 222 (9.88%) Front End Developer (Client-Side Developer)
6 211 (9.39%) Senior Developer
7 201 (8.95%) Java Developer
8 187 (8.32%) .NET Developer
9 155 (6.90%) Software Engineer
10 154 (6.85%) AWS Developer
11 144 (6.41%) Angular Developer
12 117 (5.21%) AWS Engineer
13 110 (4.90%) C# Developer
14 109 (4.85%) Python Developer
15 106 (4.72%) Architect
16 92 (4.09%) HTML Developer
17 86 (3.83%) JavaScript Engineer
18 82 (3.65%) Node.js Developer
19 80 (3.56%) UI Developer
20 73 (3.25%) Front Office Developer
Libraries, Frameworks & Software Standards
1 869 (38.67%) React
2 857 (38.14%) HTML
3 791 (35.20%) CSS
4 670 (29.82%) AngularJS
5 577 (25.68%) Node.js
6 466 (20.74%) Web Services
7 441 (19.63%) .NET
8 345 (15.35%) HTML5
9 304 (13.53%) Redux
10 214 (9.52%) REST
10 214 (9.52%) Vue.js
11 209 (9.30%) ASP.NET
12 183 (8.14%) RESTful
13 156 (6.94%) Sass
14 153 (6.81%) CSS3
15 150 (6.68%) .NET Core
16 142 (6.32%) jQuery
17 121 (5.38%) Spring
18 114 (5.07%) XML
19 109 (4.85%) SOAP
Miscellaneous
1 236 (10.50%) User Experience
2 222 (9.88%) Foreign Exchange (FX)
3 219 (9.75%) Fixed Income
4 193 (8.59%) Hedge funds
5 177 (7.88%) Derivative
6 169 (7.52%) Greenfield Project
7 153 (6.81%) Equities
8 146 (6.50%) Analytical Skills
9 78 (3.47%) Mobile App
10 49 (2.18%) Data Structures
11 40 (1.78%) Blog
12 37 (1.65%) Enterprise Software
13 35 (1.56%) Cloud Native
14 34 (1.51%) Algorithms
15 32 (1.42%) Self-Motivation
16 28 (1.25%) Virtual Team
17 27 (1.20%) Public Cloud
18 26 (1.16%) Equity Derivative
18 26 (1.16%) W3C
19 14 (0.62%) Management Information System
Operating Systems
1 165 (7.34%) Linux
2 86 (3.83%) Windows
3 63 (2.80%) Android
4 47 (2.09%) Unix
5 42 (1.87%) Apple iOS
6 14 (0.62%) Windows Server
7 10 (0.45%) CentOS
7 10 (0.45%) CoreOS
8 8 (0.36%) AIX
8 8 (0.36%) Mac OS
9 5 (0.22%) Red Hat Enterprise Linux
9 5 (0.22%) Ubuntu
10 4 (0.18%) Mac OS X
11 3 (0.13%) Debian
11 3 (0.13%) VMS
11 3 (0.13%) Windows 10
11 3 (0.13%) Windows XP
12 1 (0.045%) tvOS
12 1 (0.045%) Windows Server 2008
Processes & Methodologies
1 1,177 (52.38%) Agile Software Development
2 446 (19.85%) DevOps
3 419 (18.65%) TDD
4 409 (18.20%) Front End Development
5 386 (17.18%) Software Engineering
6 305 (13.57%) Microservices
7 296 (13.17%) Test Automation
8 246 (10.95%) Scrum
9 226 (10.06%) Continuous Integration
10 223 (9.92%) Asset Management
11 191 (8.50%) BDD
12 170 (7.57%) Web Development
13 153 (6.81%) Investment Management
14 150 (6.68%) SDLC
15 149 (6.63%) Open Source
16 146 (6.50%) MVC
16 146 (6.50%) OO
17 145 (6.45%) Problem-Solving
18 141 (6.28%) Fintech
19 121 (5.38%) Decision-Making
Programming Languages
1 701 (31.20%) Java
2 427 (19.00%) Python
3 415 (18.47%) C#
4 391 (17.40%) SQL
5 361 (16.07%) TypeScript
6 138 (6.14%) ES6
7 135 (6.01%) Ruby
8 101 (4.49%) PHP
9 71 (3.16%) Go
10 67 (2.98%) C++
11 64 (2.85%) Kotlin
12 54 (2.40%) PowerShell
12 54 (2.40%) Scala
13 50 (2.23%) Java 8
14 41 (1.82%) T-SQL
15 40 (1.78%) Bash Shell
16 37 (1.65%) F#
17 36 (1.60%) Apex Code
18 35 (1.56%) C
19 34 (1.51%) Groovy
Qualifications
1 151 (6.72%) Security Cleared
2 122 (5.43%) Degree
3 115 (5.12%) SC Cleared
4 61 (2.71%) Computer Science Degree
5 19 (0.85%) BPSS Clearance
6 14 (0.62%) Master's Degree
6 14 (0.62%) Microsoft Certification
7 10 (0.45%) DV Cleared
8 9 (0.40%) BC Cleared
9 8 (0.36%) CTC Cleared
10 7 (0.31%) ISTQB
10 7 (0.31%) Postgraduate
11 6 (0.27%) DBS Check
12 5 (0.22%) Numerate Degree
13 3 (0.13%) CCNA
13 3 (0.13%) CCNP
13 3 (0.13%) Cisco Certification
13 3 (0.13%) ISEB
14 2 (0.089%) SANS
14 2 (0.089%) TOGAF Certification
Quality Assurance & Compliance
1 113 (5.03%) QA
2 14 (0.62%) WCAG
3 8 (0.36%) SLA
4 7 (0.31%) Solvency II
5 4 (0.18%) MiFID
6 3 (0.13%) Disclosure Scotland
6 3 (0.13%) PCI DSS
7 2 (0.089%) Basel III
7 2 (0.089%) ISO 20022
8 1 (0.045%) Actionable Recommendations
8 1 (0.045%) Data Quality
8 1 (0.045%) HL7
8 1 (0.045%) ISO/IEC 27001
System Software
1 239 (10.64%) Docker
2 29 (1.29%) Active Directory
3 5 (0.22%) OpenAM
3 5 (0.22%) OpenDJ
4 3 (0.13%) Virtual Machines
4 3 (0.13%) VMware Infrastructure
4 3 (0.13%) zsh
5 2 (0.089%) Oracle RAC
5 2 (0.089%) VMware ESXi
6 1 (0.045%) Apache ZooKeeper
Systems Management
1 230 (10.24%) Kubernetes
2 127 (5.65%) Terraform
3 50 (2.23%) Ansible
4 27 (1.20%) Opscode Chef
5 24 (1.07%) Puppet
6 15 (0.67%) Single Sign-On
7 12 (0.53%) SCCM
8 11 (0.49%) Kibana
8 11 (0.49%) Nagios
9 10 (0.45%) Prometheus
10 9 (0.40%) HP SiteScope
11 8 (0.36%) CFEngine
12 6 (0.27%) Grafana
13 4 (0.18%) Salt
14 3 (0.13%) Oracle Statspack
15 2 (0.089%) HP ALM
15 2 (0.089%) Mesos
15 2 (0.089%) MIIS
15 2 (0.089%) TeamSite
15 2 (0.089%) vCenter Server
Vendors
1 149 (6.63%) Google
2 109 (4.85%) Oracle
3 107 (4.76%) Microsoft
4 53 (2.36%) Salesforce.com
5 46 (2.05%) Adobe
6 36 (1.60%) SAP
7 26 (1.16%) Bloomberg
8 24 (1.07%) hybris
9 23 (1.02%) ServiceNow
10 19 (0.85%) Splunk
11 17 (0.76%) IBM
12 15 (0.67%) HP
12 15 (0.67%) Sitecore
12 15 (0.67%) Sybase
13 13 (0.58%) PeopleSoft
14 10 (0.45%) Roku
14 10 (0.45%) Veracode
15 9 (0.40%) Atlassian
15 9 (0.40%) Confluent
16 8 (0.36%) Cognos