Period
to 14 November 2018

The following table provides summary statistics for contract job vacancies advertised in the City of 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 14 November 2018 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)
Central London > City of London
6 months to
14 Nov 2018
Same period 2017 Same period 2016
Rank 7 8 8
Rank change year-on-year +1 0 +4
Contract jobs citing JavaScript 951 982 943
As % of all contract IT jobs advertised in the City of London 13.46% 13.75% 14.10%
As % of the Programming Languages category 24.90% 26.21% 27.89%
Number of daily rates quoted 812 822 815
City of London median daily rate £500 £500 £450
Median daily rate % change year-on-year - +11.11% +3.15%
10th Percentile £363 £325 £319
90th Percentile £650 £638 £625
Central London median daily rate £500 £476 £450
% change year-on-year +5.15% +5.67% +5.88%
Number of hourly rates quoted 1 1 0
City of London median hourly rate £19.00 £27.09 -
Median hourly rate % change year-on-year -29.86% - -
Central London median hourly rate £19.00 £27.09 -
% change year-on-year -29.86% - -

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 the City of London with a requirement for coding skills.

All Programming Languages
City of London
Contract vacancies with a requirement for coding skills 3,820 3,746 3,381
As % of all contract IT jobs advertised in the City of London 54.08% 52.45% 50.55%
Number of daily rates quoted 3,194 3,102 2,850
City of London median daily rate £525 £525 £475
Median daily rate % change year-on-year - +10.53% -
10th Percentile £375 £363 £325
90th Percentile £675 £688 £650
Central London median daily rate £525 £513 £475
% change year-on-year +2.44% +7.89% +0.26%
Number of hourly rates quoted 8 15 10
City of London median hourly rate £37.09 £21.50 £27.50
Median hourly rate % change year-on-year +72.51% -21.82% +5.42%
10th Percentile £16.10 £13.32 £16.06
90th Percentile £74.46 £37.80 £55.19
Central London median hourly rate £37.09 £22.99 £27.50
% change year-on-year +61.31% -16.39% +5.42%

JavaScript
Job Vacancy Trend in the City of London

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

Job vacancy trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for JavaScript in the City of London

JavaScript
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JavaScript in the City of London over the 6 months to 14 November 2018.

Contractor daily rate histogram for JavaScript in the City of London

JavaScript
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for JavaScript in the City of London

JavaScript
Contract Job Locations in the City of 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 City of London region over the 6 months to 14 November 2018. 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
London Bridge -4 68 £525 +90.91%
Moorgate -16 2 £438 -20.45%
JavaScript
Central London

For the 6 months to 14 November 2018, 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 City of London region with a requirement for JavaScript.

1 477 (50.16%) HTML
2 440 (46.27%) Agile Software Development
3 400 (42.06%) CSS
4 360 (37.85%) AngularJS
5 303 (31.86%) React
6 278 (29.23%) TDD
7 267 (28.08%) Java
8 266 (27.97%) HTML5
9 214 (22.50%) Node.js
10 205 (21.56%) Front End Development
11 190 (19.98%) C#
11 190 (19.98%) Finance
12 175 (18.40%) .NET
13 171 (17.98%) Git (software)
14 152 (15.98%) Redux
15 141 (14.83%) BDD
15 141 (14.83%) Microservices
16 139 (14.62%) MVC
17 133 (13.99%) jQuery
18 131 (13.77%) Scrum
19 130 (13.67%) Amazon AWS
20 129 (13.56%) Banking
20 129 (13.56%) SQL
21 123 (12.93%) REST
22 122 (12.83%) Spring
23 120 (12.62%) DevOps
24 118 (12.41%) CSS3
25 117 (12.30%) Microsoft Azure
25 117 (12.30%) Test Automation
26 116 (12.20%) User Experience

JavaScript
Co-occurring IT Skills in the City of 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 45 (4.73%) Elasticsearch
2 35 (3.68%) WordPress
3 26 (2.73%) CMS
3 26 (2.73%) Confluence
4 20 (2.10%) Drupal
4 20 (2.10%) SharePoint
5 17 (1.79%) Apache Spark
6 16 (1.68%) Adobe Experience Manager
7 11 (1.16%) Tomcat
8 7 (0.74%) Apache
9 6 (0.63%) Cloud Foundry
10 5 (0.53%) Oracle SOA Suite
11 4 (0.42%) Gunicorn
11 4 (0.42%) IIS
11 4 (0.42%) SharePoint Server
11 4 (0.42%) Sitecore CMS
12 3 (0.32%) SharePoint 2013
12 3 (0.32%) Umbraco
12 3 (0.32%) WebLogic
13 2 (0.21%) EPiServer
Applications
1 12 (1.26%) Photoshop
2 7 (0.74%) InfoPath
3 5 (0.53%) Fireworks
4 4 (0.42%) Acrobat
4 4 (0.42%) Adobe Creative Suite
4 4 (0.42%) Adobe Illustrator
4 4 (0.42%) InVision
5 3 (0.32%) InDesign
6 2 (0.21%) Chatbot
6 2 (0.21%) OmniGraffle
7 1 (0.11%) Adobe Premiere
7 1 (0.11%) Microsoft Excel
7 1 (0.11%) Microsoft Office
Business Applications
1 9 (0.95%) Dynamics CRM
2 5 (0.53%) ION MarketView
3 3 (0.32%) Magento
4 1 (0.11%) Distributed Ledger
4 1 (0.11%) Dynamics AX
4 1 (0.11%) Dynamics NAV
4 1 (0.11%) Payment Gateway
4 1 (0.11%) SAP ERP
4 1 (0.11%) SDL Web 8
Cloud Services
1 130 (13.67%) Amazon AWS
2 117 (12.30%) Microsoft Azure
3 29 (3.05%) Heroku
4 27 (2.84%) npm
5 25 (2.63%) GitHub
6 19 (2.00%) Serverless
7 13 (1.37%) AWS Lambda
8 12 (1.26%) Google Cloud Platform
9 11 (1.16%) SaaS
10 10 (1.05%) Google Analytics
11 9 (0.95%) Dynamics 365
11 9 (0.95%) Office 365
12 8 (0.84%) Adobe Analytics
12 8 (0.84%) Cloud Computing
13 5 (0.53%) PaaS
13 5 (0.53%) Yarn
14 4 (0.42%) Adobe Creative Cloud
14 4 (0.42%) Azure Functions
15 3 (0.32%) Apigee
15 3 (0.32%) AWS CloudFormation
Communications & Networking
1 30 (3.15%) HTTP
2 25 (2.63%) SSL
3 24 (2.52%) FTP
4 22 (2.31%) DNS
4 22 (2.31%) TCP/IP
5 15 (1.58%) Internet
6 5 (0.53%) Intranet
7 4 (0.42%) AMQP
8 3 (0.32%) Firewall
8 3 (0.32%) HTTPS
8 3 (0.32%) VPN
9 2 (0.21%) LAN
9 2 (0.21%) SMTP
9 2 (0.21%) SSH
10 1 (0.11%) Network Security
10 1 (0.11%) NGN
10 1 (0.11%) Unified Communications
10 1 (0.11%) WAN
Database & Business Intelligence
1 79 (8.31%) SQL Server
2 58 (6.10%) NoSQL
3 57 (5.99%) MongoDB
4 49 (5.15%) Relational Database
5 45 (4.73%) MySQL
6 35 (3.68%) PostgreSQL
7 28 (2.94%) RDBMS
8 25 (2.63%) Big Data
9 23 (2.42%) Hadoop
10 21 (2.21%) Apache Cassandra
11 19 (2.00%) Redis
12 15 (1.58%) Cosmos DB
13 14 (1.47%) Azure SQL Database
14 11 (1.16%) SQL Server Integration Services
15 10 (1.05%) SQL Server 2012
16 8 (0.84%) Amazon DynamoDB
17 6 (0.63%) Blockchain
17 6 (0.63%) HBase
17 6 (0.63%) SQL Server 2008
18 5 (0.53%) SQL Server 2016
Development Applications
1 171 (17.98%) Git (software)
2 98 (10.30%) Jenkins
3 86 (9.04%) gulp
4 72 (7.57%) Selenium
5 69 (7.26%) JIRA
6 47 (4.94%) webpack
7 43 (4.52%) Maven
8 41 (4.31%) Grunt
9 40 (4.21%) Jasmine
10 36 (3.79%) Cucumber
11 33 (3.47%) Visual Studio
12 32 (3.36%) GitLab
13 31 (3.26%) TeamCity
14 30 (3.15%) Gradle
15 29 (3.05%) Karma Test Runner
16 25 (2.63%) JUnit
17 23 (2.42%) Octopus Deploy
18 22 (2.31%) Babel
19 21 (2.21%) Team Foundation Server
20 19 (2.00%) WebDriver
General
1 190 (19.98%) Finance
2 129 (13.56%) Banking
3 52 (5.47%) Investment Banking
4 37 (3.89%) Retail
5 35 (3.68%) Front Office
6 23 (2.42%) Advertising
7 17 (1.79%) Games
8 11 (1.16%) Publishing
9 9 (0.95%) Back Office
9 9 (0.95%) Marketing
10 8 (0.84%) Financial Institution
11 7 (0.74%) Law
12 6 (0.63%) Retail Banking
13 5 (0.53%) Legal
14 4 (0.42%) Telecoms
15 3 (0.32%) Digital Economy
15 3 (0.32%) Multimedia
16 1 (0.11%) Automotive
16 1 (0.11%) Mandarin Language
Job Titles
1 754 (79.28%) Developer
2 201 (21.14%) Front End Developer (Client-Side Developer)
3 196 (20.61%) JavaScript Developer
4 139 (14.62%) Java Developer
5 135 (14.20%) React Developer
6 111 (11.67%) Full Stack Developer
7 110 (11.57%) Angular Developer
8 92 (9.67%) Senior Developer
9 81 (8.52%) .NET Developer
10 59 (6.20%) C# Developer
11 45 (4.73%) Node.js Developer
12 44 (4.63%) Lead Developer
13 40 (4.21%) UI Developer
14 34 (3.58%) Web Developer
15 29 (3.05%) PHP Developer
16 27 (2.84%) C# .NET Developer
17 25 (2.63%) Senior JavaScript Developer
18 23 (2.42%) HTML Developer
19 22 (2.31%) Senior React Developer
20 21 (2.21%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 477 (50.16%) HTML
2 400 (42.06%) CSS
3 360 (37.85%) AngularJS
4 303 (31.86%) React
5 266 (27.97%) HTML5
6 214 (22.50%) Node.js
7 175 (18.40%) .NET
8 152 (15.98%) Redux
9 133 (13.99%) jQuery
10 123 (12.93%) REST
11 122 (12.83%) Spring
12 118 (12.41%) CSS3
13 110 (11.57%) RESTful
14 103 (10.83%) Sass
15 94 (9.88%) Twitter Bootstrap
16 82 (8.62%) ASP.NET
17 71 (7.47%) Angular 2
17 71 (7.47%) JSON
18 67 (7.05%) Web Services
19 63 (6.62%) Spring Boot
Miscellaneous
1 116 (12.20%) User Experience
2 111 (11.67%) Greenfield Project
3 68 (7.15%) Fintech
4 43 (4.52%) Computer Science
5 34 (3.58%) Mobile App
6 24 (2.52%) Analytical Skills
6 24 (2.52%) Fixed Income
7 23 (2.42%) Foreign Exchange (FX)
8 21 (2.21%) Data Structures
9 15 (1.58%) Derivative
10 13 (1.37%) Self-Motivation
11 12 (1.26%) Algorithms
11 12 (1.26%) iPad
12 9 (0.95%) Enterprise Software
13 8 (0.84%) Equities
13 8 (0.84%) Tandem
14 7 (0.74%) Equity Derivative
14 7 (0.74%) Linux Command Line
14 7 (0.74%) Management Information System
14 7 (0.74%) Video\Live Streaming
Operating Systems
1 73 (7.68%) Linux
2 38 (4.00%) Unix
3 28 (2.94%) Apple iOS
4 22 (2.31%) Android
5 17 (1.79%) Windows
6 11 (1.16%) Windows Server
7 5 (0.53%) Red Hat Enterprise Linux
8 3 (0.32%) Mac OS
8 3 (0.32%) VMS
9 2 (0.21%) Mac OS X
10 1 (0.11%) CentOS
10 1 (0.11%) Oracle Linux
10 1 (0.11%) Ubuntu
Processes & Methodologies
1 440 (46.27%) Agile Software Development
2 278 (29.23%) TDD
3 205 (21.56%) Front End Development
4 141 (14.83%) BDD
4 141 (14.83%) Microservices
5 139 (14.62%) MVC
6 131 (13.77%) Scrum
7 120 (12.62%) DevOps
8 117 (12.30%) Test Automation
9 110 (11.57%) OO
10 96 (10.09%) Continuous Integration
11 82 (8.62%) Web Development
12 78 (8.20%) Software Engineering
13 65 (6.83%) Kanban
14 57 (5.99%) E-Commerce
15 54 (5.68%) Unit Testing
16 53 (5.57%) Problem-Solving
17 50 (5.26%) Open Source
18 42 (4.42%) Pair Programming
19 39 (4.10%) Continuous Delivery
Programming Languages
1 267 (28.08%) Java
2 190 (19.98%) C#
3 129 (13.56%) SQL
4 100 (10.52%) ES6
5 93 (9.78%) TypeScript
6 75 (7.89%) Python
7 72 (7.57%) Java 8
8 64 (6.73%) PHP
9 27 (2.84%) PowerShell
10 24 (2.52%) T-SQL
11 21 (2.21%) Bash Shell
12 19 (2.00%) Ruby
12 19 (2.00%) Scala
13 17 (1.79%) C
14 13 (1.37%) C++
15 12 (1.26%) ES7
16 11 (1.16%) PL/SQL
17 9 (0.95%) Go
17 9 (0.95%) Kotlin
18 7 (0.74%) PHP 7
Qualifications
1 54 (5.68%) Degree
2 20 (2.10%) Computer Science Degree
3 7 (0.74%) Security Cleared
4 5 (0.53%) SC Cleared
5 4 (0.42%) Microsoft Certification
6 3 (0.32%) ISTQB
6 3 (0.32%) Master's Degree
7 2 (0.21%) AWS Certification
7 2 (0.21%) BPSS Clearance
7 2 (0.21%) CISA
7 2 (0.21%) CISM
7 2 (0.21%) CISMP
7 2 (0.21%) CISSP
7 2 (0.21%) ISO 27001 Lead Implementer
7 2 (0.21%) ISSMP
7 2 (0.21%) Numerate Degree
7 2 (0.21%) Sun Certification
8 1 (0.11%) DBS Check
8 1 (0.11%) MOS
8 1 (0.11%) PhD
Quality Assurance & Compliance
1 57 (5.99%) QA
2 12 (1.26%) Disclosure Scotland
3 7 (0.74%) WCAG
4 3 (0.32%) GDPR
5 2 (0.21%) Data Quality
5 2 (0.21%) ISO/IEC 27001
5 2 (0.21%) SLA
6 1 (0.11%) FedRAMP
6 1 (0.11%) FISMA
6 1 (0.11%) HIPAA
6 1 (0.11%) Solvency II
6 1 (0.11%) WAI
System Software
1 100 (10.52%) Docker
2 3 (0.32%) Active Directory
3 2 (0.21%) HDFS
3 2 (0.21%) Varnish
3 2 (0.21%) VMware ESXi
3 2 (0.21%) VMware Infrastructure
4 1 (0.11%) Apache ZooKeeper
4 1 (0.11%) etcd
Systems Management
1 41 (4.31%) Kubernetes
2 27 (2.84%) Ansible
3 22 (2.31%) Docker Swarm
4 19 (2.00%) Opscode Chef
5 16 (1.68%) Puppet
6 15 (1.58%) Terraform
7 6 (0.63%) Kibana
8 5 (0.53%) logstash
8 5 (0.53%) Single Sign-On
8 5 (0.53%) systemd
9 4 (0.42%) Capistrano
10 3 (0.32%) HP ALM
10 3 (0.32%) HP Quality Center
10 3 (0.32%) Packer
11 2 (0.21%) Grafana
11 2 (0.21%) Marathon
11 2 (0.21%) Mesos
11 2 (0.21%) Prometheus
11 2 (0.21%) SCCM
12 1 (0.11%) Oozie
Vendors
1 50 (5.26%) Microsoft
2 31 (3.26%) Google
3 27 (2.84%) Oracle
4 24 (2.52%) Adobe
5 16 (1.68%) Salesforce.com
6 11 (1.16%) Apple
7 9 (0.95%) ION Trading
7 9 (0.95%) Splunk
8 7 (0.74%) Cadence
9 6 (0.63%) Pega
9 6 (0.63%) Tableau
10 5 (0.53%) Citrix
10 5 (0.53%) Cypress Semiconductor
10 5 (0.53%) Demandware
10 5 (0.53%) Perfecto Mobile
10 5 (0.53%) Sitecore
11 4 (0.42%) Nintex
11 4 (0.42%) Telerik
12 3 (0.32%) Bloomberg
12 3 (0.32%) IBM