Period
to 22 May 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 May 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 May 2018
Same period 2017 Same period 2016
Rank 8 8 8
Rank change year-on-year 0 0 +3
Contract jobs citing JavaScript 941 785 672
As % of all contract IT jobs advertised in the City of London 13.61% 12.82% 10.39%
As % of the Programming Languages category 25.87% 25.75% 22.34%
Number of daily rates quoted 771 669 577
City of London median daily rate £500 £475 £425
Median daily rate % change year-on-year +5.26% +11.76% +3.03%
10th Percentile £363 £325 £292
90th Percentile £638 £638 £593
Central London median daily rate £500 £475 £425
% change year-on-year +5.26% +11.76% +6.25%
Number of hourly rates quoted 1 0 2
City of London median hourly rate £55.00 - £55.00
10th Percentile £47.50 - £50.00
90th Percentile £62.50 - £60.00
Central London median hourly rate £55.00 - £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 3,638 3,049 3,008
As % of all contract IT jobs advertised in the City of London 52.61% 49.79% 46.53%
Number of daily rates quoted 3,063 2,486 2,523
City of London median daily rate £525 £500 £475
Median daily rate % change year-on-year +5.00% +5.26% +5.56%
10th Percentile £363 £325 £313
90th Percentile £694 £650 £650
Central London median daily rate £513 £488 £463
% change year-on-year +5.13% +5.41% +2.78%
Number of hourly rates quoted 21 4 13
City of London median hourly rate £21.50 £28.35 £26.00
Median hourly rate % change year-on-year -24.15% +9.02% +9.47%
10th Percentile £12.75 £15.43 £18.50
90th Percentile £48.25 £35.18 £60.00
Central London median hourly rate £21.50 £28.35 £26.00
% change year-on-year -24.15% +9.02% +8.38%

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 May 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 May 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 -7 10 £475 +95.88%
Moorgate -2 9 £400 -
JavaScript
Central London

For the 6 months to 22 May 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.

1 523 (55.58%) HTML
2 457 (48.57%) CSS
3 408 (43.36%) Agile Software Development
4 362 (38.47%) AngularJS
5 329 (34.96%) Java
6 308 (32.73%) HTML5
7 302 (32.09%) React
8 270 (28.69%) Node.js
9 243 (25.82%) C#
9 243 (25.82%) Finance
10 240 (25.50%) TDD
11 230 (24.44%) .NET
12 188 (19.98%) Git (software)
13 173 (18.38%) CSS3
14 165 (17.53%) Front End Development
15 159 (16.90%) Banking
16 150 (15.94%) SQL
17 146 (15.52%) MVC
18 145 (15.41%) Amazon AWS
19 142 (15.09%) BDD
20 139 (14.77%) RESTful
21 123 (13.07%) jQuery
21 123 (13.07%) Web Services
22 121 (12.86%) SQL Server
23 120 (12.75%) REST
24 117 (12.43%) Docker
24 117 (12.43%) Redux
25 113 (12.01%) Web Development
26 112 (11.90%) ES6
27 111 (11.80%) Greenfield Project

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 24 (2.55%) Cloud Foundry
1 24 (2.55%) Confluence
2 22 (2.34%) CMS
2 22 (2.34%) Elasticsearch
3 19 (2.02%) Apache
4 18 (1.91%) SharePoint
5 13 (1.38%) Apache Spark
6 12 (1.28%) Tomcat
7 11 (1.17%) Sitecore CMS
8 10 (1.06%) Apache Solr
9 9 (0.96%) WebSphere
9 9 (0.96%) WordPress
10 8 (0.85%) Drupal
10 8 (0.85%) Umbraco
11 7 (0.74%) Ethereum
12 6 (0.64%) Adobe Experience Manager
12 6 (0.64%) Hyperledger
13 5 (0.53%) IIS
14 4 (0.43%) JBoss
14 4 (0.43%) nginx
Applications
1 20 (2.13%) OmniGraffle
2 19 (2.02%) Adobe Creative Suite
3 7 (0.74%) Microsoft Excel
4 6 (0.64%) Photoshop
5 3 (0.32%) Microsoft Office
5 3 (0.32%) Microsoft PowerPoint
5 3 (0.32%) MS Visio
6 2 (0.21%) Adobe Illustrator
6 2 (0.21%) InVision
7 1 (0.11%) HipChat
7 1 (0.11%) InDesign
7 1 (0.11%) InfoPath
7 1 (0.11%) Microsoft Project
7 1 (0.11%) Moqups
7 1 (0.11%) Spreadsheet
Business Applications
1 18 (1.91%) Dynamics CRM
2 14 (1.49%) Payment Gateway
3 5 (0.53%) ION MarketView
4 4 (0.43%) Distributed Ledger
4 4 (0.43%) Magento
4 4 (0.43%) R3 Corda
5 1 (0.11%) Adobe Campaign
5 1 (0.11%) Eloqua
5 1 (0.11%) SDL Web 8
5 1 (0.11%) Temenos T24
Cloud Services
1 145 (15.41%) Amazon AWS
2 101 (10.73%) Microsoft Azure
3 48 (5.10%) npm
4 31 (3.29%) Heroku
5 20 (2.13%) PaaS
6 17 (1.81%) Serverless
7 16 (1.70%) GitHub
8 10 (1.06%) Google Cloud Platform
9 8 (0.85%) Amazon S3
9 8 (0.85%) Google Analytics
9 8 (0.85%) SaaS
10 7 (0.74%) Amazon EC2
10 7 (0.74%) Cloud Computing
10 7 (0.74%) Office 365
10 7 (0.74%) Yarn
11 5 (0.53%) Amazon SQS
11 5 (0.53%) AWS Lambda
11 5 (0.53%) Dynamics 365
12 4 (0.43%) Adobe Analytics
12 4 (0.43%) Route 53
Communications & Networking
1 57 (6.06%) HTTP
2 45 (4.78%) SSL
3 32 (3.40%) DNS
4 28 (2.98%) FTP
4 28 (2.98%) TCP/IP
5 17 (1.81%) Firewall
6 7 (0.74%) Internet
7 6 (0.64%) AMQP
8 4 (0.43%) DHCP
8 4 (0.43%) DKIM
8 4 (0.43%) DMARC
8 4 (0.43%) Intranet
8 4 (0.43%) VPN
8 4 (0.43%) Wireshark
9 3 (0.32%) HTTPS
9 3 (0.32%) WAN
10 2 (0.21%) Ethernet
10 2 (0.21%) iSCSI
10 2 (0.21%) MPLS
10 2 (0.21%) Network Security
Database & Business Intelligence
1 121 (12.86%) SQL Server
2 71 (7.55%) NoSQL
3 66 (7.01%) PostgreSQL
4 61 (6.48%) MongoDB
5 54 (5.74%) MySQL
6 50 (5.31%) Relational Database
7 25 (2.66%) Redis
8 19 (2.02%) SQL Server Reporting Services
9 17 (1.81%) RDBMS
10 15 (1.59%) Big Data
11 14 (1.49%) SQL Server Integration Services
12 13 (1.38%) Apache Cassandra
13 12 (1.28%) Amazon DynamoDB
14 10 (1.06%) Blockchain
15 9 (0.96%) Hadoop
15 9 (0.96%) Power BI
15 9 (0.96%) SQL Server Analysis Services
16 8 (0.85%) InterSystems Cache
17 7 (0.74%) SQL Server 2008
18 6 (0.64%) SQL Server 2012
Development Applications
1 188 (19.98%) Git (software)
2 86 (9.14%) Jenkins
3 77 (8.18%) Selenium
4 75 (7.97%) gulp
5 72 (7.65%) webpack
6 58 (6.16%) JIRA
7 54 (5.74%) Cucumber
8 51 (5.42%) Jasmine
9 41 (4.36%) TeamCity
10 40 (4.25%) Maven
11 32 (3.40%) Sonatype Nexus
12 30 (3.19%) Babel
12 30 (3.19%) GitLab
13 29 (3.08%) Gradle
13 29 (3.08%) Grunt
13 29 (3.08%) Mocha
14 22 (2.34%) Visual Studio
15 21 (2.23%) Gatling
15 21 (2.23%) Spock
15 21 (2.23%) Team Foundation Server
General
1 243 (25.82%) Finance
2 159 (16.90%) Banking
3 73 (7.76%) Investment Banking
4 36 (3.83%) Retail
5 34 (3.61%) Marketing
6 27 (2.87%) Front Office
7 26 (2.76%) Games
8 23 (2.44%) Telecoms
9 22 (2.34%) Law
10 20 (2.13%) Advertising
11 19 (2.02%) Legal
12 17 (1.81%) Retail Banking
13 12 (1.28%) Back Office
14 9 (0.96%) Financial Institution
15 4 (0.43%) Publishing
16 2 (0.21%) Digital Economy
16 2 (0.21%) Pharmaceutical
17 1 (0.11%) Corporate Banking
17 1 (0.11%) Electronics
17 1 (0.11%) Manufacturing
Job Titles
1 724 (76.94%) Developer
2 178 (18.92%) JavaScript Developer
3 135 (14.35%) Front End Developer (Client-Side Developer)
4 110 (11.69%) React Developer
5 109 (11.58%) Java Developer
6 107 (11.37%) .NET Developer
7 91 (9.67%) Full Stack Developer
8 89 (9.46%) C# Developer
9 76 (8.08%) Angular Developer
10 63 (6.70%) Senior Developer
11 62 (6.59%) C# .NET Developer
12 48 (5.10%) HTML Developer
13 47 (4.99%) Web Developer
14 44 (4.68%) Agile Developer
15 37 (3.93%) Node.js Developer
16 35 (3.72%) DevOps Engineer
17 34 (3.61%) PHP Developer
17 34 (3.61%) UI Developer
18 29 (3.08%) HTML CSS Developer
18 29 (3.08%) Software Engineer
Libraries, Frameworks & Software Standards
1 523 (55.58%) HTML
2 457 (48.57%) CSS
3 362 (38.47%) AngularJS
4 308 (32.73%) HTML5
5 302 (32.09%) React
6 270 (28.69%) Node.js
7 230 (24.44%) .NET
8 173 (18.38%) CSS3
9 139 (14.77%) RESTful
10 123 (13.07%) jQuery
10 123 (13.07%) Web Services
11 120 (12.75%) REST
12 117 (12.43%) Redux
13 103 (10.95%) ASP.NET
14 97 (10.31%) Spring
15 92 (9.78%) Twitter Bootstrap
16 78 (8.29%) ASP.NET Web API
16 78 (8.29%) Sass
17 73 (7.76%) SOAP
18 59 (6.27%) .NET Framework
Miscellaneous
1 111 (11.80%) Greenfield Project
2 98 (10.41%) User Experience
3 70 (7.44%) Mobile App
4 50 (5.31%) Fintech
5 27 (2.87%) Fixed Income
6 23 (2.44%) iPad
7 22 (2.34%) Analytical Skills
8 21 (2.23%) Computer Science
8 21 (2.23%) Equities
8 21 (2.23%) Linux Command Line
9 20 (2.13%) Foreign Exchange (FX)
10 16 (1.70%) Derivative
11 15 (1.59%) Enterprise Software
12 11 (1.17%) Management Information System
13 10 (1.06%) Virtual Team
14 9 (0.96%) Credit Risk
15 8 (0.85%) Self-Motivation
16 6 (0.64%) Algorithms
16 6 (0.64%) RIA
16 6 (0.64%) Tandem
Operating Systems
1 96 (10.20%) Linux
2 41 (4.36%) Unix
3 32 (3.40%) Android
3 32 (3.40%) Apple iOS
4 24 (2.55%) Windows
5 8 (0.85%) Mac OS X
6 7 (0.74%) Windows Server
7 5 (0.53%) Mac OS
8 4 (0.43%) VMS
9 3 (0.32%) Red Hat Enterprise Linux
10 2 (0.21%) Oracle Linux
11 1 (0.11%) Solaris
11 1 (0.11%) Windows Server 2008
11 1 (0.11%) Windows Server 2012
Processes & Methodologies
1 408 (43.36%) Agile Software Development
2 240 (25.50%) TDD
3 165 (17.53%) Front End Development
4 146 (15.52%) MVC
5 142 (15.09%) BDD
6 113 (12.01%) Web Development
7 107 (11.37%) DevOps
7 107 (11.37%) Microservices
8 98 (10.41%) Continuous Integration
9 96 (10.20%) Test Automation
10 91 (9.67%) Scrum
11 90 (9.56%) E-Commerce
12 74 (7.86%) Software Engineering
13 68 (7.23%) Unit Testing
14 57 (6.06%) Problem-Solving
15 54 (5.74%) OO
16 52 (5.53%) Open Source
17 44 (4.68%) Analytics
18 37 (3.93%) Pair Programming
19 36 (3.83%) Responsive Web Design
Programming Languages
1 329 (34.96%) Java
2 243 (25.82%) C#
3 150 (15.94%) SQL
4 112 (11.90%) ES6
5 106 (11.26%) Python
6 99 (10.52%) TypeScript
7 69 (7.33%) Ruby
8 57 (6.06%) Java 8
9 46 (4.89%) PHP
10 34 (3.61%) Bash Shell
11 32 (3.40%) Groovy
12 31 (3.29%) Scala
13 25 (2.66%) C++
14 18 (1.91%) R
15 17 (1.81%) T-SQL
16 15 (1.59%) Go
17 13 (1.38%) PowerShell
17 13 (1.38%) VB.NET
18 12 (1.28%) PL/SQL
19 9 (0.96%) MUMPS
Qualifications
1 28 (2.98%) Degree
2 14 (1.49%) Security Cleared
3 13 (1.38%) SC Cleared
4 10 (1.06%) Computer Science Degree
5 3 (0.32%) Microsoft Certification
6 2 (0.21%) Master's Degree
6 2 (0.21%) MCP
6 2 (0.21%) MCPD
6 2 (0.21%) PhD
7 1 (0.11%) BPSS Clearance
7 1 (0.11%) CEH
7 1 (0.11%) CISSP
7 1 (0.11%) DV Cleared
7 1 (0.11%) ISEB
7 1 (0.11%) ISTQB
7 1 (0.11%) OSCP
7 1 (0.11%) SAFe Agilist
Quality Assurance & Compliance
1 65 (6.91%) QA
2 8 (0.85%) ISO/IEC 27001
3 6 (0.64%) Data Quality
4 2 (0.21%) GDPR
4 2 (0.21%) WCAG
5 1 (0.11%) HL7
5 1 (0.11%) MiFID
System Software
1 117 (12.43%) Docker
2 14 (1.49%) Active Directory
3 5 (0.53%) VMware Infrastructure
4 3 (0.32%) Virtual Machines
4 3 (0.32%) VMware ESXi
5 2 (0.21%) NFS
6 1 (0.11%) Apache ZooKeeper
6 1 (0.11%) HDFS
6 1 (0.11%) Hyper-V
6 1 (0.11%) KVM
6 1 (0.11%) OpenAM
6 1 (0.11%) Oracle RAC
6 1 (0.11%) SRDF
6 1 (0.11%) Varnish
6 1 (0.11%) Virtual Desktop
6 1 (0.11%) VMware NSX
6 1 (0.11%) vSphere
6 1 (0.11%) Xen
Systems Management
1 36 (3.83%) Kubernetes
2 33 (3.51%) Docker Swarm
3 31 (3.29%) Ansible
4 25 (2.66%) Opscode Chef
4 25 (2.66%) Puppet
5 8 (0.85%) Marathon
5 8 (0.85%) Mesos
5 8 (0.85%) Terraform
6 5 (0.53%) Single Sign-On
7 4 (0.43%) Nessus
8 3 (0.32%) Kibana
8 3 (0.32%) logstash
8 3 (0.32%) SCCM
9 2 (0.21%) Capistrano
9 2 (0.21%) Grafana
9 2 (0.21%) Matomo
9 2 (0.21%) WebSphere Cast Iron
9 2 (0.21%) WMI
10 1 (0.11%) EMC NetWorker
10 1 (0.11%) Systems Management Server (SMS)
Vendors
1 67 (7.12%) Microsoft
2 37 (3.93%) Adobe
3 30 (3.19%) Google
4 28 (2.98%) Oracle
5 25 (2.66%) Splunk
6 22 (2.34%) Salesforce.com
7 20 (2.13%) Apigee
8 13 (1.38%) AppDynamics
9 11 (1.17%) Sitecore
10 10 (1.06%) IBM
11 9 (0.96%) SAP
12 7 (0.74%) Cisco
13 6 (0.64%) VMware
14 5 (0.53%) Demandware
14 5 (0.53%) Fidessa
14 5 (0.53%) ION Trading
14 5 (0.53%) New Relic
14 5 (0.53%) Sybase
14 5 (0.53%) Tableau
15 4 (0.43%) Reuters