Period
to 23 October 2019

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 23 October 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)
Central London > City of London
6 months to
23 Oct 2019
Same period 2018 Same period 2017
Rank 9 7 8
Rank change year-on-year -2 +1 0
Contract jobs citing JavaScript 708 971 962
As % of all contract IT jobs advertised in the City of London 11.91% 13.82% 13.88%
As % of the Programming Languages category 23.79% 25.61% 26.65%
Number of daily rates quoted 588 820 791
City of London median daily rate £525 £500 £500
Median daily rate % change year-on-year +5.00% - +11.11%
10th Percentile £400 £363 £325
90th Percentile £650 £638 £638
Central London median daily rate £525 £500 £475
% change year-on-year +5.00% +5.26% +5.56%
Number of hourly rates quoted 1 1 0
City of London median hourly rate £48.50 £55.00 -
Median hourly rate % change year-on-year -11.82% - -
Central London median hourly rate £48.50 £55.00 -
% change year-on-year -11.82% - -

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 2,976 3,792 3,610
As % of all contract IT jobs advertised in the City of London 50.08% 53.96% 52.09%
Number of daily rates quoted 2,431 3,151 2,950
City of London median daily rate £525 £525 £525
10th Percentile £400 £375 £363
90th Percentile £688 £688 £675
Central London median daily rate £525 £525 £505
% change year-on-year - +3.96% +7.33%
Number of hourly rates quoted 12 11 12
City of London median hourly rate £36.28 £37.09 £21.50
Median hourly rate % change year-on-year -2.18% +72.51% -21.82%
10th Percentile £21.02 £12.50 £13.31
90th Percentile £55.18 £62.50 £30.00
Central London median hourly rate £28.00 £29.55 £22.99
% change year-on-year -5.23% +28.50% -16.39%

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 23 October 2019.

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 23 October 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
London Bridge -1 43 £525 +5.00%
Moorgate +1 9 £500 +25.00%
JavaScript
Central London

For the 6 months to 23 October 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 City of London region with a requirement for JavaScript.

1 318 (44.92%) HTML
2 313 (44.21%) Agile Software Development
3 299 (42.23%) CSS
4 264 (37.29%) React
5 202 (28.53%) Java
6 198 (27.97%) AngularJS
7 182 (25.71%) TDD
8 163 (23.02%) Node.js
9 151 (21.33%) C#
10 143 (20.20%) Finance
11 142 (20.06%) Front End Development
12 124 (17.51%) .NET
13 117 (16.53%) HTML5
14 109 (15.40%) TypeScript
15 107 (15.11%) AWS
16 105 (14.83%) Redux
17 103 (14.55%) Microservices
18 102 (14.41%) SQL
19 101 (14.27%) Azure
20 99 (13.98%) DevOps
21 95 (13.42%) Python
22 89 (12.57%) Git (software)
23 83 (11.72%) MVC
24 81 (11.44%) Software Engineering
25 79 (11.16%) Scrum
26 73 (10.31%) Test Automation
27 72 (10.17%) BDD
27 72 (10.17%) Web Development
27 72 (10.17%) Docker
28 67 (9.46%) SQL Server

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 31 (4.38%) CMS
2 28 (3.95%) SharePoint
3 23 (3.25%) Elasticsearch
4 21 (2.97%) IIS
5 18 (2.54%) Confluence
6 17 (2.40%) Apache
6 17 (2.40%) JBoss
7 9 (1.27%) Appian
7 9 (1.27%) MS Exchange
7 9 (1.27%) WordPress
8 8 (1.13%) Umbraco
9 7 (0.99%) Adobe Experience Manager
9 7 (0.99%) Drupal
10 6 (0.85%) Apache Spark
10 6 (0.85%) Cloud Foundry
10 6 (0.85%) SharePoint Server
10 6 (0.85%) Sitecore CMS
11 5 (0.71%) SharePoint 2013
11 5 (0.71%) WebSphere
12 4 (0.56%) SugarCRM
Applications
1 9 (1.27%) Microsoft Excel
2 7 (0.99%) Photoshop
3 4 (0.56%) Adobe Illustrator
3 4 (0.56%) Microsoft Office
3 4 (0.56%) Microsoft PowerPoint
4 3 (0.42%) InDesign
4 3 (0.42%) Sketch
5 1 (0.14%) MS Visio
5 1 (0.14%) Spreadsheet
5 1 (0.14%) Zeplin
Business Applications
1 25 (3.53%) Dynamics CRM
2 4 (0.56%) Remedy ITSM
3 2 (0.28%) BusinessWorks
3 2 (0.28%) Distributed Ledger
3 2 (0.28%) Oracle Cash Management
3 2 (0.28%) R3 Corda
3 2 (0.28%) SAP Oil and Gas
4 1 (0.14%) Dynamics AX
4 1 (0.14%) SDL Web 8
4 1 (0.14%) SessionCam
4 1 (0.14%) WebTrends
Cloud Services
1 107 (15.11%) AWS
2 101 (14.27%) Azure
3 33 (4.66%) GCP
4 27 (3.81%) GitHub
5 21 (2.97%) npm
6 18 (2.54%) Serverless
7 17 (2.40%) Cloud Computing
8 14 (1.98%) Amazon EC2
8 14 (1.98%) PaaS
9 13 (1.84%) Amazon SQS
9 13 (1.84%) SaaS
10 12 (1.69%) Dynamics 365
11 11 (1.55%) AWS Lambda
12 10 (1.41%) Amazon S3
12 10 (1.41%) Office 365
13 9 (1.27%) Adobe Analytics
14 8 (1.13%) Amazon Kinesis
14 8 (1.13%) OpenShift
15 6 (0.85%) Amazon ELB
15 6 (0.85%) Route 53
Communications & Networking
1 11 (1.55%) Firewall
2 8 (1.13%) HTTP
3 6 (0.85%) Intranet
4 4 (0.56%) FTP
4 4 (0.56%) VPN
5 3 (0.42%) DNS
5 3 (0.42%) Internet
5 3 (0.42%) SSH
5 3 (0.42%) SSL
5 3 (0.42%) TCP/IP
6 2 (0.28%) Peer-to-Peer Networking
6 2 (0.28%) SMTP
7 1 (0.14%) HTTPS
7 1 (0.14%) Intrusion Detection
Database & Business Intelligence
1 67 (9.46%) SQL Server
2 40 (5.65%) MySQL
3 28 (3.95%) PostgreSQL
4 27 (3.81%) MongoDB
5 25 (3.53%) NoSQL
6 13 (1.84%) Relational Database
6 13 (1.84%) SQL Server Integration Services
7 10 (1.41%) Amazon DynamoDB
8 9 (1.27%) Apache Cassandra
8 9 (1.27%) Big Data
9 8 (1.13%) Amazon RDS
10 7 (0.99%) Blockchain
10 7 (0.99%) HBase
11 6 (0.85%) Hadoop
11 6 (0.85%) Neo4j
11 6 (0.85%) Power BI
11 6 (0.85%) SQL Server Reporting Services
12 4 (0.56%) Geospatial Data
12 4 (0.56%) Oracle Database
12 4 (0.56%) Redis
Development Applications
1 89 (12.57%) Git (software)
2 46 (6.50%) Jenkins
3 45 (6.36%) webpack
4 37 (5.23%) JIRA
5 34 (4.80%) Visual Studio
6 32 (4.52%) gulp
7 29 (4.10%) Cucumber
8 28 (3.95%) TeamCity
9 23 (3.25%) Selenium
10 21 (2.97%) Grunt
11 19 (2.68%) Maven
11 19 (2.68%) Team Foundation Server
12 16 (2.26%) Atlassian Bamboo
13 14 (1.98%) CircleCI
13 14 (1.98%) Jasmine
13 14 (1.98%) Mocha
14 13 (1.84%) Subversion
14 13 (1.84%) WebDriver
15 12 (1.69%) Bitbucket
16 11 (1.55%) Octopus Deploy
General
1 143 (20.20%) Finance
2 65 (9.18%) Banking
3 32 (4.52%) Front Office
4 28 (3.95%) Public Sector
5 19 (2.68%) Marketing
6 17 (2.40%) Investment Banking
7 16 (2.26%) Retail
8 14 (1.98%) Advertising
9 12 (1.69%) Law
10 6 (0.85%) Financial Institution
10 6 (0.85%) Publishing
11 5 (0.71%) Telecoms
12 4 (0.56%) Automotive
12 4 (0.56%) Legal
13 3 (0.42%) Back Office
13 3 (0.42%) Games
13 3 (0.42%) Pharmaceutical
14 2 (0.28%) Manufacturing
15 1 (0.14%) Electronics
15 1 (0.14%) Retail Banking
Job Titles
1 531 (75.00%) Developer
2 131 (18.50%) React Developer
3 127 (17.94%) JavaScript Developer
4 78 (11.02%) Front End Developer (Client-Side Developer)
5 76 (10.73%) Full Stack Developer
6 66 (9.32%) Java Developer
6 66 (9.32%) Senior Developer
7 48 (6.78%) Angular Developer
8 37 (5.23%) C# Developer
9 31 (4.38%) .NET Developer
10 28 (3.95%) Architect
11 25 (3.53%) UI Developer
12 23 (3.25%) Python Developer
13 22 (3.11%) Node.js Developer
14 20 (2.82%) Analyst
15 15 (2.12%) DevOps Engineer
16 13 (1.84%) Applications Developer
16 13 (1.84%) Consultant
16 13 (1.84%) Java Engineer
16 13 (1.84%) PHP Developer
Libraries, Frameworks & Software Standards
1 318 (44.92%) HTML
2 299 (42.23%) CSS
3 264 (37.29%) React
4 198 (27.97%) AngularJS
5 163 (23.02%) Node.js
6 124 (17.51%) .NET
7 117 (16.53%) HTML5
8 105 (14.83%) Redux
9 63 (8.90%) REST
10 60 (8.47%) CSS3
11 55 (7.77%) Web Services
12 54 (7.63%) Spring
13 53 (7.49%) ASP.NET
14 52 (7.34%) jQuery
15 51 (7.20%) RESTful
16 50 (7.06%) Twitter Bootstrap
17 48 (6.78%) Sass
18 42 (5.93%) JSON
19 41 (5.79%) .NET Framework
19 41 (5.79%) XML
Miscellaneous
1 60 (8.47%) Greenfield Project
2 51 (7.20%) User Experience
3 22 (3.11%) Analytical Skills
4 13 (1.84%) Mobile App
5 12 (1.69%) Hedge funds
6 11 (1.55%) Enterprise Software
6 11 (1.55%) Management Information System
7 10 (1.41%) Foreign Exchange (FX)
8 9 (1.27%) Driving Licence
8 9 (1.27%) Virtual Team
9 8 (1.13%) Algorithms
9 8 (1.13%) Data Structures
9 8 (1.13%) Public Cloud
10 7 (0.99%) Derivative
10 7 (0.99%) Fixed Income
11 6 (0.85%) Equities
12 5 (0.71%) Wiki
13 4 (0.56%) Equity Derivative
13 4 (0.56%) Self-Motivation
13 4 (0.56%) W3C
Operating Systems
1 58 (8.19%) Linux
2 35 (4.94%) Windows
3 15 (2.12%) Apple iOS
3 15 (2.12%) Unix
4 13 (1.84%) Android
5 10 (1.41%) Red Hat Enterprise Linux
6 8 (1.13%) Debian
6 8 (1.13%) Mac OS X
6 8 (1.13%) Ubuntu
6 8 (1.13%) Windows Server
7 6 (0.85%) openSUSE
8 3 (0.42%) CentOS
8 3 (0.42%) Solaris
8 3 (0.42%) Windows 10
9 2 (0.28%) VMS
10 1 (0.14%) CoreOS
Processes & Methodologies
1 313 (44.21%) Agile Software Development
2 182 (25.71%) TDD
3 142 (20.06%) Front End Development
4 103 (14.55%) Microservices
5 99 (13.98%) DevOps
6 83 (11.72%) MVC
7 81 (11.44%) Software Engineering
8 79 (11.16%) Scrum
9 73 (10.31%) Test Automation
10 72 (10.17%) BDD
10 72 (10.17%) Web Development
11 59 (8.33%) Continuous Integration
12 50 (7.06%) SDLC
13 43 (6.07%) OO
14 40 (5.65%) E-Commerce
15 39 (5.51%) Unit Testing
16 37 (5.23%) Multithreading
17 34 (4.80%) Pair Programming
18 32 (4.52%) CRM
19 30 (4.24%) Kanban
Programming Languages
1 202 (28.53%) Java
2 151 (21.33%) C#
3 109 (15.40%) TypeScript
4 102 (14.41%) SQL
5 95 (13.42%) Python
6 59 (8.33%) ES6
7 44 (6.21%) PHP
8 36 (5.08%) Ruby
9 25 (3.53%) Java 8
10 22 (3.11%) Scala
11 20 (2.82%) Go
12 17 (2.40%) PowerShell
13 15 (2.12%) Perl
14 12 (1.69%) Kotlin
15 11 (1.55%) Groovy
16 9 (1.27%) C++
17 7 (0.99%) Bash Shell
17 7 (0.99%) Clojure
17 7 (0.99%) ClojureScript
17 7 (0.99%) T-SQL
Qualifications
1 41 (5.79%) Degree
2 35 (4.94%) Security Cleared
3 32 (4.52%) SC Cleared
4 13 (1.84%) Computer Science Degree
5 7 (0.99%) Numerate Degree
6 6 (0.85%) HND
7 5 (0.71%) ISTQB
8 4 (0.56%) BPSS Clearance
9 2 (0.28%) AWS Certification
9 2 (0.28%) CISSP
9 2 (0.28%) Master's Degree
10 1 (0.14%) DV Cleared
10 1 (0.14%) ISEB
Quality Assurance & Compliance
1 27 (3.81%) QA
2 8 (1.13%) NIST
3 6 (0.85%) COBIT
3 6 (0.85%) ISO/IEC 27001
3 6 (0.85%) WCAG
4 2 (0.28%) Data Quality
4 2 (0.28%) NIST 800
4 2 (0.28%) PCI DSS
System Software
1 72 (10.17%) Docker
2 6 (0.85%) Virtual Machines
3 1 (0.14%) Active Directory
3 1 (0.14%) Firmware
3 1 (0.14%) Varnish
Systems Management
1 34 (4.80%) Terraform
2 28 (3.95%) Kubernetes
3 18 (2.54%) Ansible
4 7 (0.99%) Single Sign-On
5 6 (0.85%) Nessus
5 6 (0.85%) Puppet
6 5 (0.71%) HP Fortify
6 5 (0.71%) ITRS Geneos
7 4 (0.56%) Docker Swarm
7 4 (0.56%) Grafana
7 4 (0.56%) Graphite
7 4 (0.56%) MIIS
7 4 (0.56%) Nagios
7 4 (0.56%) ZABBIX
8 2 (0.28%) Consul
8 2 (0.28%) Opscode Chef
8 2 (0.28%) Salt
9 1 (0.14%) Control-M
Vendors
1 55 (7.77%) Microsoft
2 36 (5.08%) Google
3 31 (4.38%) Oracle
4 23 (3.25%) Adobe
5 13 (1.84%) ServiceNow
6 12 (1.69%) Atlassian
6 12 (1.69%) Splunk
7 10 (1.41%) Sitecore
8 9 (1.27%) Perforce
8 9 (1.27%) Salesforce.com
9 8 (1.13%) Red Hat
10 6 (0.85%) New Relic
11 5 (0.71%) Qualys
12 4 (0.56%) BMC
12 4 (0.56%) Okta
12 4 (0.56%) Remedy
12 4 (0.56%) SAP
12 4 (0.56%) Sybase
12 4 (0.56%) Tableau
12 4 (0.56%) Tealium