Period
to 26 June 2019

The following table provides summary statistics for contract job vacancies advertised in Central 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 26 June 2019 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)
London > Central London
6 months to
26 Jun 2019
Same period 2018 Same period 2017
Rank 7 6 8
Rank change year-on-year -1 +2 0
Contract jobs citing JavaScript 1,203 1,321 988
As % of all contract IT jobs advertised in Central London 14.24% 14.48% 13.32%
As % of the Programming Languages category 27.96% 27.66% 27.17%
Number of daily rates quoted 972 1,087 822
Central London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +10.47%
10th Percentile £378 £363 £319
90th Percentile £625 £638 £638
London median daily rate £500 £500 £470
% change year-on-year - +6.38% +6.82%
Number of hourly rates quoted 7 1 0
Central London median hourly rate £35.00 £55.00 -
Median hourly rate % change year-on-year -36.36% - -
London median hourly rate £50.00 £33.77 £27.50
% change year-on-year +48.06% +22.80% -35.44%

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 Central London with a requirement for coding skills.

All Programming Languages
Central London
Contract vacancies with a requirement for coding skills 4,302 4,776 3,637
As % of all contract IT jobs advertised in Central London 50.91% 52.36% 49.03%
Number of daily rates quoted 3,455 3,955 2,908
Central London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +8.11%
10th Percentile £400 £363 £325
90th Percentile £675 £675 £650
London median daily rate £525 £505 £490
% change year-on-year +3.96% +3.06% +8.53%
Number of hourly rates quoted 23 24 7
Central London median hourly rate £35.00 £21.50 £28.35
Median hourly rate % change year-on-year +62.79% -24.15% +9.02%
10th Percentile £21.00 £12.90 £16.65
90th Percentile £59.90 £66.00 £39.70
London median hourly rate £36.67 £42.50 £40.13
% change year-on-year -13.72% +5.91% +34.15%

JavaScript
Job Vacancy Trend in Central London

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

Job vacancy trend for JavaScript in Central London

JavaScript
Contractor Daily Rate Trend in Central London

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

Contractor daily rate trend for JavaScript in Central London

JavaScript
Contractor Daily Rate Histogram in Central London

The daily rate distribution of IT jobs citing JavaScript in Central London over the 6 months to 26 June 2019.

Contractor daily rate histogram for JavaScript in Central London

JavaScript
Contractor Hourly Rate Trend in Central London

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

Contractor hourly rate trend for JavaScript in Central London

JavaScript
Contractor Hourly Rate Histogram in Central London

The hourly rate distribution of IT jobs citing JavaScript in Central London over the 6 months to 26 June 2019.

Contractor hourly rate histogram for JavaScript in Central London

JavaScript
Contract Job Locations in Central 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 Central London region over the 6 months to 26 June 2019. 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
City of London -1 773 £500 - 215
Southwark -6 73 £500 +5.26%
West End of London -4 38 £550 +4.76% 5
City of Westminster -6 30 £550 +22.22% 1
Camden +9 12 £525 +5.00% 2
Kensington and Chelsea - 1 £325 - 1
JavaScript
London

For the 6 months to 26 June 2019, 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 Central London region with a requirement for JavaScript.

1 588 (48.88%) Agile Software Development
2 561 (46.63%) HTML
3 511 (42.48%) CSS
4 418 (34.75%) React
5 342 (28.43%) Node.js
6 331 (27.51%) Java
7 294 (24.44%) TDD
8 283 (23.52%) AngularJS
9 266 (22.11%) HTML5
10 233 (19.37%) Git (software)
11 225 (18.70%) Microservices
12 204 (16.96%) C#
12 204 (16.96%) Finance
13 197 (16.38%) .NET
14 196 (16.29%) DevOps
15 194 (16.13%) Front End Development
16 189 (15.71%) Amazon AWS
17 188 (15.63%) SQL
18 184 (15.30%) Redux
19 180 (14.96%) Microsoft Azure
20 172 (14.30%) Scrum
21 155 (12.88%) TypeScript
22 151 (12.55%) MVC
23 148 (12.30%) Docker
24 138 (11.47%) jQuery
25 136 (11.31%) BDD
25 136 (11.31%) ES6
26 134 (11.14%) Test Automation
26 134 (11.14%) E-Commerce
27 133 (11.06%) Linux

JavaScript
Co-occurring IT Skills in Central 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 54 (4.49%) Elasticsearch
2 46 (3.82%) Confluence
3 39 (3.24%) CMS
4 25 (2.08%) Apache
5 24 (2.00%) Adobe Experience Manager
6 21 (1.75%) SharePoint
7 16 (1.33%) WordPress
8 14 (1.16%) Drupal
9 11 (0.91%) WebSphere
10 9 (0.75%) Apache Spark
11 8 (0.67%) JBoss
12 7 (0.58%) IIS
13 6 (0.50%) Apache Solr
13 6 (0.50%) GeoServer
13 6 (0.50%) nginx
14 5 (0.42%) ArcGIS
14 5 (0.42%) EPiServer
14 5 (0.42%) Magnolia
14 5 (0.42%) Sitecore CMS
15 4 (0.33%) Appian
Applications
1 10 (0.83%) Photoshop
2 9 (0.75%) Sketch
3 8 (0.67%) Microsoft Excel
4 6 (0.50%) Adobe Illustrator
5 4 (0.33%) Microsoft PowerPoint
6 2 (0.17%) Microsoft Office
7 1 (0.083%) Adobe Creative Suite
7 1 (0.083%) Adobe XD
7 1 (0.083%) InDesign
7 1 (0.083%) InVision
7 1 (0.083%) Zeplin
Business Applications
1 11 (0.91%) Dynamics CRM
2 8 (0.67%) Magento
3 7 (0.58%) Remedy ITSM
4 4 (0.33%) Adobe Campaign
4 4 (0.33%) SAP Oil and Gas
5 2 (0.17%) Sage 200
5 2 (0.17%) SAP ERP
5 2 (0.17%) SAP S/4HANA
5 2 (0.17%) Shopify
6 1 (0.083%) Eloqua
6 1 (0.083%) Oracle BPM
6 1 (0.083%) Salesforce.com CRM
6 1 (0.083%) SAP Hybris
6 1 (0.083%) SDL Web 8
6 1 (0.083%) SessionCam
6 1 (0.083%) Workday HCM
Cloud Services
1 189 (15.71%) Amazon AWS
2 180 (14.96%) Microsoft Azure
3 51 (4.24%) GitHub
4 43 (3.57%) Serverless
5 31 (2.58%) Google Cloud Platform
6 30 (2.49%) OpenShift
7 28 (2.33%) AWS Lambda
8 25 (2.08%) Google Analytics
9 23 (1.91%) npm
10 17 (1.41%) Amazon SQS
10 17 (1.41%) PaaS
11 16 (1.33%) Amazon EC2
12 15 (1.25%) Adobe Analytics
13 14 (1.16%) Amazon S3
14 13 (1.08%) Dynamics 365
15 12 (1.00%) Datadog
15 12 (1.00%) Power Platform
15 12 (1.00%) SaaS
16 11 (0.91%) Heroku
17 10 (0.83%) Amazon Kinesis
Communications & Networking
1 23 (1.91%) HTTP
2 15 (1.25%) SSL
2 15 (1.25%) TCP/IP
3 14 (1.16%) DNS
4 13 (1.08%) FTP
5 8 (0.67%) Firewall
6 6 (0.50%) Internet
7 4 (0.33%) VPN
8 2 (0.17%) HTTPS
8 2 (0.17%) Intranet
8 2 (0.17%) Wireshark
9 1 (0.083%) 3GPP
9 1 (0.083%) Bluetooth
9 1 (0.083%) Intrusion Detection
9 1 (0.083%) Network Security
9 1 (0.083%) Skype
9 1 (0.083%) SMTP
9 1 (0.083%) Sourcefire
9 1 (0.083%) SSH
Database & Business Intelligence
1 109 (9.06%) SQL Server
2 88 (7.32%) MySQL
3 60 (4.99%) MongoDB
4 58 (4.82%) NoSQL
5 57 (4.74%) PostgreSQL
6 44 (3.66%) Relational Database
7 33 (2.74%) Redis
8 30 (2.49%) Big Data
9 19 (1.58%) Apache Cassandra
10 13 (1.08%) Amazon DynamoDB
11 12 (1.00%) Amazon RDS
12 11 (0.91%) SQL Server Reporting Services
13 10 (0.83%) Hadoop
14 9 (0.75%) Blockchain
15 8 (0.67%) Neo4j
15 8 (0.67%) Power BI
16 7 (0.58%) BigQuery
16 7 (0.58%) Geospatial Data
16 7 (0.58%) SQL Server Integration Services
17 6 (0.50%) Data Lake
Development Applications
1 233 (19.37%) Git (software)
2 89 (7.40%) JIRA
3 88 (7.32%) Jenkins
4 74 (6.15%) webpack
5 61 (5.07%) gulp
6 56 (4.66%) Cucumber
7 52 (4.32%) Selenium
8 47 (3.91%) Maven
9 41 (3.41%) Grunt
10 40 (3.33%) Jasmine
11 39 (3.24%) Subversion
12 31 (2.58%) Mocha
12 31 (2.58%) WebDriver
13 28 (2.33%) Visual Studio
13 28 (2.33%) Visual Studio Team System
14 26 (2.16%) GitLab
14 26 (2.16%) Team Foundation Server
14 26 (2.16%) TeamCity
15 23 (1.91%) Karma Test Runner
16 22 (1.83%) Bitbucket
General
1 204 (16.96%) Finance
2 67 (5.57%) Banking
3 35 (2.91%) Marketing
4 34 (2.83%) Retail
5 28 (2.33%) Front Office
6 20 (1.66%) Investment Banking
7 11 (0.91%) Advertising
7 11 (0.91%) Publishing
8 9 (0.75%) Games
8 9 (0.75%) Law
9 6 (0.50%) Back Office
10 3 (0.25%) Billing
10 3 (0.25%) Financial Institution
10 3 (0.25%) Legal
10 3 (0.25%) Pharmaceutical
11 2 (0.17%) Automotive
11 2 (0.17%) Manufacturing
12 1 (0.083%) International Banking
12 1 (0.083%) Retail Banking
12 1 (0.083%) Wholesale Banking
Job Titles
1 912 (75.81%) Developer
2 247 (20.53%) React Developer
3 235 (19.53%) JavaScript Developer
4 140 (11.64%) Front End Developer (Client-Side Developer)
5 135 (11.22%) Full Stack Developer
6 125 (10.39%) Senior Developer
7 94 (7.81%) Java Developer
8 64 (5.32%) .NET Developer
9 62 (5.15%) Node.js Developer
10 58 (4.82%) Angular Developer
11 38 (3.16%) Architect
12 34 (2.83%) Azure Developer
13 33 (2.74%) Analyst
13 33 (2.74%) JavaScript Engineer
14 32 (2.66%) UI Developer
15 30 (2.49%) AWS Developer
16 29 (2.41%) Web Developer
17 28 (2.33%) Senior JavaScript Developer
17 28 (2.33%) Senior React Developer
18 26 (2.16%) E-Commerce Developer
Libraries, Frameworks & Software Standards
1 561 (46.63%) HTML
2 511 (42.48%) CSS
3 418 (34.75%) React
4 342 (28.43%) Node.js
5 283 (23.52%) AngularJS
6 266 (22.11%) HTML5
7 197 (16.38%) .NET
8 184 (15.30%) Redux
9 138 (11.47%) jQuery
10 132 (10.97%) REST
11 123 (10.22%) RESTful
12 117 (9.73%) CSS3
13 114 (9.48%) Sass
14 106 (8.81%) Web Services
15 104 (8.65%) Spring
16 100 (8.31%) Twitter Bootstrap
17 86 (7.15%) JSON
18 76 (6.32%) GraphQL
19 75 (6.23%) ASP.NET
20 73 (6.07%) Vue.js
Miscellaneous
1 106 (8.81%) Greenfield Project
2 89 (7.40%) User Experience
3 83 (6.90%) Mobile App
4 43 (3.57%) Analytical Skills
5 34 (2.83%) Data Structures
6 26 (2.16%) Enterprise Software
7 19 (1.58%) Algorithms
8 16 (1.33%) Self-Motivation
9 15 (1.25%) W3C
10 13 (1.08%) Data Protection Act
11 12 (1.00%) Virtual Team
12 9 (0.75%) iPad
13 8 (0.67%) Social Media
14 7 (0.58%) Hedge funds
15 6 (0.50%) Foreign Exchange (FX)
15 6 (0.50%) Management Information System
16 5 (0.42%) Equity Derivative
16 5 (0.42%) Fixed Income
16 5 (0.42%) Video\Live Streaming
17 4 (0.33%) Music Streaming
Operating Systems
1 133 (11.06%) Linux
2 44 (3.66%) Windows
3 37 (3.08%) Apple iOS
4 36 (2.99%) Android
5 28 (2.33%) Unix
6 11 (0.91%) Mac OS X
7 6 (0.50%) Ubuntu
7 6 (0.50%) Windows Server
8 5 (0.42%) Red Hat Enterprise Linux
9 4 (0.33%) VMS
9 4 (0.33%) Windows Server 2012
10 3 (0.25%) Debian
10 3 (0.25%) openSUSE
10 3 (0.25%) Windows Server 2008
11 1 (0.083%) Amazon Linux
11 1 (0.083%) Windows 10
Processes & Methodologies
1 588 (48.88%) Agile Software Development
2 294 (24.44%) TDD
3 225 (18.70%) Microservices
4 196 (16.29%) DevOps
5 194 (16.13%) Front End Development
6 172 (14.30%) Scrum
7 151 (12.55%) MVC
8 136 (11.31%) BDD
9 134 (11.14%) E-Commerce
9 134 (11.14%) Test Automation
10 112 (9.31%) Software Engineering
11 104 (8.65%) Web Development
12 88 (7.32%) SDLC
13 85 (7.07%) Analytics
14 81 (6.73%) Continuous Integration
15 73 (6.07%) Problem-Solving
16 69 (5.74%) Fintech
17 66 (5.49%) OO
18 62 (5.15%) Unit Testing
19 58 (4.82%) Kanban
Programming Languages
1 331 (27.51%) Java
2 204 (16.96%) C#
3 188 (15.63%) SQL
4 155 (12.88%) TypeScript
5 136 (11.31%) ES6
6 124 (10.31%) Python
7 69 (5.74%) PHP
8 61 (5.07%) Java 8
9 52 (4.32%) Ruby
10 27 (2.24%) PowerShell
11 26 (2.16%) Scala
12 24 (2.00%) Bash Shell
13 23 (1.91%) Go
14 19 (1.58%) Perl
15 18 (1.50%) ES7
16 17 (1.41%) T-SQL
17 16 (1.33%) Groovy
18 14 (1.16%) Shell Script
19 13 (1.08%) Kotlin
20 11 (0.91%) Clojure
Qualifications
1 42 (3.49%) Degree
2 24 (2.00%) Security Cleared
3 21 (1.75%) Computer Science Degree
4 19 (1.58%) SC Cleared
5 6 (0.50%) BPSS Clearance
6 4 (0.33%) TOGAF Certification
7 3 (0.25%) ISTQB
7 3 (0.25%) Master's Degree
7 3 (0.25%) Numerate Degree
8 2 (0.17%) DV Cleared
9 1 (0.083%) CISM
9 1 (0.083%) CISMP
9 1 (0.083%) CISSP
9 1 (0.083%) DBS Check
9 1 (0.083%) SAFe Agilist
Quality Assurance & Compliance
1 65 (5.40%) QA
2 6 (0.50%) Data Quality
2 6 (0.50%) PCI DSS
2 6 (0.50%) WCAG
3 4 (0.33%) SLA
4 3 (0.25%) COBIT
4 3 (0.25%) ISO/IEC 27001
4 3 (0.25%) NIST
5 2 (0.17%) Solvency II
System Software
1 148 (12.30%) Docker
2 13 (1.08%) Active Directory
3 3 (0.25%) VMware Infrastructure
4 1 (0.083%) Apache Flume
4 1 (0.083%) Apache ZooKeeper
4 1 (0.083%) etcd
4 1 (0.083%) HDFS
4 1 (0.083%) Virtual Machines
4 1 (0.083%) zsh
Systems Management
1 78 (6.48%) Kubernetes
2 44 (3.66%) Terraform
3 28 (2.33%) Ansible
4 16 (1.33%) Grafana
5 13 (1.08%) Docker Swarm
5 13 (1.08%) Puppet
6 8 (0.67%) Kibana
7 7 (0.58%) Graphite
7 7 (0.58%) ZABBIX
8 6 (0.50%) Opscode Chef
8 6 (0.50%) Single Sign-On
9 5 (0.42%) Consul
9 5 (0.42%) logstash
9 5 (0.42%) Marathon
9 5 (0.42%) Mesos
10 4 (0.33%) ITRS Geneos
10 4 (0.33%) Nagios
11 3 (0.25%) HP Fortify
11 3 (0.25%) Nessus
11 3 (0.25%) vRealize
Vendors
1 72 (5.99%) Microsoft
2 67 (5.57%) Google
3 42 (3.49%) Adobe
4 33 (2.74%) Splunk
5 31 (2.58%) Oracle
6 30 (2.49%) ServiceNow
7 16 (1.33%) Cypress Semiconductor
8 15 (1.25%) Salesforce.com
9 13 (1.08%) Atlassian
9 13 (1.08%) hybris
10 9 (0.75%) New Relic
10 9 (0.75%) SAP
11 8 (0.67%) Perforce
12 7 (0.58%) BMC
12 7 (0.58%) Remedy
12 7 (0.58%) Sonatype
12 7 (0.58%) Tableau
12 7 (0.58%) Tealium
13 6 (0.50%) AppDynamics
13 6 (0.50%) Sitecore