Period
to 22 September 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 22 September 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
22 Sep 2018
Same period 2017 Same period 2016
Rank 7 8 8
Rank change year-on-year +1 0 +5
Contract jobs citing JavaScript 966 952 896
As % of all contract IT jobs advertised in the City of London 13.94% 14.04% 13.24%
As % of the Programming Languages category 25.95% 27.32% 27.18%
Number of daily rates quoted 814 776 787
City of London median daily rate £500 £490 £450
Median daily rate % change year-on-year +2.04% +8.89% +5.88%
10th Percentile £363 £316 £307
90th Percentile £638 £638 £609
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 1 0 0
City of London median hourly rate £55.00 - -
Central London median hourly rate £55.00 - -

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 3,723 3,484 3,297
As % of all contract IT jobs advertised in the City of London 53.73% 51.37% 48.71%
Number of daily rates quoted 3,115 2,816 2,783
City of London median daily rate £525 £513 £475
Median daily rate % change year-on-year +2.44% +7.89% +2.70%
10th Percentile £375 £363 £313
90th Percentile £688 £675 £650
Central London median daily rate £525 £500 £453
% change year-on-year +5.00% +10.38% +0.67%
Number of hourly rates quoted 14 9 13
City of London median hourly rate £22.00 £21.50 £27.50
Median hourly rate % change year-on-year +2.33% -21.82% +10.00%
10th Percentile £12.50 £12.74 £17.00
90th Percentile £54.88 £32.30 £56.49
Central London median hourly rate £22.00 £21.50 £27.50
% change year-on-year +2.33% -21.82% +10.00%

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 22 September 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 22 September 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 +3 54 £513 +220.31%
Moorgate -3 8 £400 -27.27%
JavaScript
Central London

For the 6 months to 22 September 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.

1 512 (53.00%) HTML
2 441 (45.65%) Agile Software Development
3 431 (44.62%) CSS
4 384 (39.75%) AngularJS
5 310 (32.09%) React
6 308 (31.88%) HTML5
7 285 (29.50%) Java
8 265 (27.43%) TDD
9 221 (22.88%) Node.js
10 201 (20.81%) C#
11 198 (20.50%) .NET
11 198 (20.50%) Front End Development
12 196 (20.29%) Finance
13 193 (19.98%) Git (software)
14 162 (16.77%) CSS3
15 154 (15.94%) MVC
16 145 (15.01%) jQuery
17 143 (14.80%) Redux
18 142 (14.70%) Amazon AWS
19 134 (13.87%) Greenfield Project
20 133 (13.77%) REST
20 133 (13.77%) Microservices
21 130 (13.46%) RESTful
21 130 (13.46%) SQL
22 128 (13.25%) BDD
23 127 (13.15%) User Experience
24 122 (12.63%) Banking
25 121 (12.53%) Spring
26 120 (12.42%) Microsoft Azure
27 114 (11.80%) Scrum

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 38 (3.93%) Elasticsearch
2 25 (2.59%) Apache Spark
2 25 (2.59%) CMS
3 24 (2.48%) WordPress
4 21 (2.17%) Confluence
5 19 (1.97%) SharePoint
6 16 (1.66%) Apache
7 12 (1.24%) Tomcat
8 11 (1.14%) Sitecore CMS
9 10 (1.04%) Adobe Experience Manager
10 9 (0.93%) Drupal
11 8 (0.83%) Umbraco
12 7 (0.72%) Oracle SOA Suite
13 4 (0.41%) IIS
13 4 (0.41%) SharePoint Server
13 4 (0.41%) WebLogic
14 3 (0.31%) Cloud Foundry
15 2 (0.21%) Apache Solr
15 2 (0.21%) EPiServer
15 2 (0.21%) WebSphere
Applications
1 12 (1.24%) Adobe Creative Suite
2 10 (1.04%) Photoshop
3 9 (0.93%) OmniGraffle
4 5 (0.52%) InVision
5 4 (0.41%) Acrobat
5 4 (0.41%) Adobe Illustrator
5 4 (0.41%) InDesign
5 4 (0.41%) InfoPath
6 3 (0.31%) Fireworks
6 3 (0.31%) Microsoft Office
7 2 (0.21%) Microsoft Excel
8 1 (0.10%) Adobe Premiere
8 1 (0.10%) Chatbot
8 1 (0.10%) Microsoft Project
8 1 (0.10%) Moqups
8 1 (0.10%) MS Visio
Business Applications
1 8 (0.83%) ION MarketView
2 6 (0.62%) Dynamics CRM
3 4 (0.41%) Magento
4 2 (0.21%) SDL Web 8
5 1 (0.10%) Adobe Campaign
5 1 (0.10%) Distributed Ledger
5 1 (0.10%) Dynamics AX
5 1 (0.10%) Dynamics NAV
5 1 (0.10%) Payment Gateway
5 1 (0.10%) SAP ERP
Cloud Services
1 142 (14.70%) Amazon AWS
2 120 (12.42%) Microsoft Azure
3 36 (3.73%) Heroku
4 28 (2.90%) npm
5 23 (2.38%) GitHub
6 17 (1.76%) Serverless
7 12 (1.24%) Google Analytics
7 12 (1.24%) Google Cloud Platform
8 11 (1.14%) AWS Lambda
9 8 (0.83%) Office 365
9 8 (0.83%) PaaS
9 8 (0.83%) SaaS
10 7 (0.72%) Adobe Analytics
11 6 (0.62%) Amazon S3
11 6 (0.62%) Cloud Computing
12 5 (0.52%) Amazon EC2
12 5 (0.52%) AWS CloudFormation
12 5 (0.52%) Google Tag Manager
13 4 (0.41%) Adobe Creative Cloud
13 4 (0.41%) IaaS
Communications & Networking
1 53 (5.49%) HTTP
2 44 (4.55%) SSL
3 31 (3.21%) DNS
3 31 (3.21%) FTP
3 31 (3.21%) TCP/IP
4 12 (1.24%) Internet
5 9 (0.93%) AMQP
6 5 (0.52%) Intranet
7 3 (0.31%) Firewall
7 3 (0.31%) VPN
8 2 (0.21%) HTTPS
8 2 (0.21%) LAN
9 1 (0.10%) Calico
9 1 (0.10%) Cisco ICM
9 1 (0.10%) Intrusion Detection
9 1 (0.10%) Network Security
9 1 (0.10%) NGN
9 1 (0.10%) SMS
9 1 (0.10%) Unified Communications
9 1 (0.10%) WAN
Database & Business Intelligence
1 78 (8.07%) SQL Server
2 53 (5.49%) NoSQL
3 52 (5.38%) MongoDB
3 52 (5.38%) Relational Database
4 51 (5.28%) PostgreSQL
5 50 (5.18%) MySQL
6 26 (2.69%) Big Data
7 25 (2.59%) Apache Cassandra
8 23 (2.38%) Hadoop
9 21 (2.17%) RDBMS
10 20 (2.07%) Redis
11 16 (1.66%) Cosmos DB
12 13 (1.35%) Azure SQL Database
13 11 (1.14%) SQL Server Integration Services
14 7 (0.72%) Amazon DynamoDB
14 7 (0.72%) SQL Server 2012
15 6 (0.62%) HBase
15 6 (0.62%) Oracle Database
16 5 (0.52%) Data Lake
17 4 (0.41%) SQL Server 2016
Development Applications
1 193 (19.98%) Git (software)
2 90 (9.32%) gulp
3 88 (9.11%) Jenkins
4 60 (6.21%) webpack
5 57 (5.90%) JIRA
6 55 (5.69%) Selenium
7 52 (5.38%) Maven
8 45 (4.66%) Jasmine
9 39 (4.04%) GitLab
9 39 (4.04%) Grunt
10 31 (3.21%) Cucumber
11 30 (3.11%) Babel
12 29 (3.00%) Gradle
12 29 (3.00%) TeamCity
13 27 (2.80%) JUnit
14 25 (2.59%) Karma Test Runner
15 24 (2.48%) Visual Studio
16 18 (1.86%) Team Foundation Server
17 15 (1.55%) Octopus Deploy
17 15 (1.55%) WebDriver
General
1 196 (20.29%) Finance
2 122 (12.63%) Banking
3 57 (5.90%) Investment Banking
4 39 (4.04%) Retail
5 38 (3.93%) Front Office
6 32 (3.31%) Advertising
7 19 (1.97%) Games
8 17 (1.76%) Marketing
9 14 (1.45%) Back Office
10 10 (1.04%) Financial Institution
10 10 (1.04%) Retail Banking
11 9 (0.93%) Law
11 9 (0.93%) Telecoms
12 6 (0.62%) Legal
12 6 (0.62%) Publishing
13 3 (0.31%) Digital Economy
13 3 (0.31%) Multimedia
14 2 (0.21%) Pharmaceutical
15 1 (0.10%) Interactive Media
15 1 (0.10%) Mandarin Language
Job Titles
1 774 (80.12%) Developer
2 191 (19.77%) Front End Developer (Client-Side Developer)
3 183 (18.94%) JavaScript Developer
4 138 (14.29%) React Developer
5 128 (13.25%) Java Developer
6 107 (11.08%) Full Stack Developer
7 102 (10.56%) Angular Developer
8 99 (10.25%) .NET Developer
9 90 (9.32%) Senior Developer
10 67 (6.94%) C# Developer
11 53 (5.49%) Web Developer
12 45 (4.66%) UI Developer
13 44 (4.55%) C# .NET Developer
14 40 (4.14%) PHP Developer
15 39 (4.04%) Node.js Developer
16 37 (3.83%) Lead Developer
17 30 (3.11%) HTML Developer
18 26 (2.69%) Agile Developer
19 23 (2.38%) Senior Front-End Developer
19 23 (2.38%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 512 (53.00%) HTML
2 431 (44.62%) CSS
3 384 (39.75%) AngularJS
4 310 (32.09%) React
5 308 (31.88%) HTML5
6 221 (22.88%) Node.js
7 198 (20.50%) .NET
8 162 (16.77%) CSS3
9 145 (15.01%) jQuery
10 143 (14.80%) Redux
11 133 (13.77%) REST
12 130 (13.46%) RESTful
13 121 (12.53%) Spring
14 103 (10.66%) Sass
15 99 (10.25%) Twitter Bootstrap
16 90 (9.32%) ASP.NET
17 82 (8.49%) Web Services
18 68 (7.04%) JSON
19 63 (6.52%) Angular 2
20 57 (5.90%) OAuth
Miscellaneous
1 134 (13.87%) Greenfield Project
2 127 (13.15%) User Experience
3 79 (8.18%) Fintech
4 59 (6.11%) Mobile App
5 44 (4.55%) Computer Science
6 25 (2.59%) Analytical Skills
7 20 (2.07%) Data Structures
7 20 (2.07%) Fixed Income
8 18 (1.86%) Foreign Exchange (FX)
9 15 (1.55%) Derivative
9 15 (1.55%) Self-Motivation
10 14 (1.45%) Equities
10 14 (1.45%) iPad
11 11 (1.14%) Algorithms
11 11 (1.14%) Linux Command Line
12 10 (1.04%) Credit Risk
12 10 (1.04%) Management Information System
13 8 (0.83%) Equity Derivative
14 7 (0.72%) Enterprise Software
14 7 (0.72%) Video\Live Streaming
Operating Systems
1 95 (9.83%) Linux
2 47 (4.87%) Apple iOS
3 40 (4.14%) Android
4 30 (3.11%) Unix
5 15 (1.55%) Windows
6 8 (0.83%) Windows Server
7 6 (0.62%) Mac OS X
8 4 (0.41%) Mac OS
8 4 (0.41%) VMS
9 2 (0.21%) Oracle Linux
9 2 (0.21%) Red Hat Enterprise Linux
10 1 (0.10%) CentOS
10 1 (0.10%) Ubuntu
Processes & Methodologies
1 441 (45.65%) Agile Software Development
2 265 (27.43%) TDD
3 198 (20.50%) Front End Development
4 154 (15.94%) MVC
5 133 (13.77%) Microservices
6 128 (13.25%) BDD
7 114 (11.80%) Scrum
8 112 (11.59%) DevOps
9 106 (10.97%) Web Development
10 103 (10.66%) OO
11 99 (10.25%) Test Automation
12 91 (9.42%) Continuous Integration
13 76 (7.87%) Software Engineering
14 59 (6.11%) Open Source
15 58 (6.00%) E-Commerce
15 58 (6.00%) Kanban
16 55 (5.69%) Unit Testing
17 53 (5.49%) Problem-Solving
18 41 (4.24%) Analytics
19 39 (4.04%) OOP
Programming Languages
1 285 (29.50%) Java
2 201 (20.81%) C#
3 130 (13.46%) SQL
4 111 (11.49%) ES6
5 105 (10.87%) TypeScript
6 80 (8.28%) Python
7 74 (7.66%) Java 8
8 69 (7.14%) PHP
9 33 (3.42%) Ruby
10 24 (2.48%) T-SQL
11 23 (2.38%) Bash Shell
12 21 (2.17%) PowerShell
13 19 (1.97%) C
14 16 (1.66%) Scala
15 14 (1.45%) C++
16 11 (1.14%) ES7
16 11 (1.14%) R
17 10 (1.04%) Objective-C
17 10 (1.04%) PL/SQL
18 9 (0.93%) Kotlin
Qualifications
1 63 (6.52%) Degree
2 23 (2.38%) Computer Science Degree
3 14 (1.45%) Security Cleared
4 11 (1.14%) SC Cleared
5 4 (0.41%) Microsoft Certification
6 3 (0.31%) Master's Degree
7 2 (0.21%) AWS Certification
7 2 (0.21%) BPSS Clearance
7 2 (0.21%) CCSA
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 (0.10%) DV Cleared
8 1 (0.10%) ISEB
8 1 (0.10%) ISTQB
Quality Assurance & Compliance
1 60 (6.21%) QA
2 12 (1.24%) Disclosure Scotland
3 4 (0.41%) WCAG
4 3 (0.31%) Data Quality
4 3 (0.31%) ISO/IEC 27001
5 2 (0.21%) GDPR
5 2 (0.21%) SLA
6 1 (0.10%) HL7
6 1 (0.10%) Solvency II
6 1 (0.10%) WAI
System Software
1 108 (11.18%) Docker
2 4 (0.41%) Active Directory
3 3 (0.31%) VMware ESXi
3 3 (0.31%) VMware Infrastructure
4 2 (0.21%) Varnish
5 1 (0.10%) Apache ZooKeeper
5 1 (0.10%) etcd
5 1 (0.10%) HDFS
5 1 (0.10%) OpenAM
5 1 (0.10%) Virtual Desktop
Systems Management
1 45 (4.66%) Kubernetes
2 24 (2.48%) Docker Swarm
3 23 (2.38%) Ansible
4 17 (1.76%) Puppet
5 16 (1.66%) Opscode Chef
6 13 (1.35%) Terraform
7 10 (1.04%) Marathon
7 10 (1.04%) Mesos
8 5 (0.52%) Kibana
8 5 (0.52%) Single Sign-On
8 5 (0.52%) systemd
9 4 (0.41%) logstash
9 4 (0.41%) Packer
10 3 (0.31%) Capistrano
10 3 (0.31%) Grafana
10 3 (0.31%) Prometheus
10 3 (0.31%) SCCM
11 2 (0.21%) HP ALM
11 2 (0.21%) Matomo
11 2 (0.21%) QRadar
Vendors
1 41 (4.24%) Microsoft
2 37 (3.83%) Google
3 33 (3.42%) Adobe
4 32 (3.31%) Oracle
5 28 (2.90%) Salesforce.com
6 12 (1.24%) Apple
6 12 (1.24%) Sitecore
7 11 (1.14%) Apigee
8 10 (1.04%) SAP
8 10 (1.04%) Splunk
9 8 (0.83%) IBM
9 8 (0.83%) ION Trading
10 7 (0.72%) Demandware
11 6 (0.62%) Pega
11 6 (0.62%) Tableau
12 5 (0.52%) Citrix
13 4 (0.41%) Atlassian
13 4 (0.41%) Informatica
13 4 (0.41%) Sybase
13 4 (0.41%) VMware