Period
to 20 July 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 20 July 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
20 Jul 2018
Same period 2017 Same period 2016
Rank 8 8 8
Rank change year-on-year 0 0 +4
Contract jobs citing JavaScript 951 848 842
As % of all contract IT jobs advertised in the City of London 13.39% 13.16% 12.29%
As % of the Programming Languages category 25.15% 26.14% 25.66%
Number of daily rates quoted 777 699 724
City of London median daily rate £500 £475 £440
Median daily rate % change year-on-year +5.26% +7.95% +4.14%
10th Percentile £363 £325 £300
90th Percentile £638 £638 £588
Central London median daily rate £500 £475 £438
% change year-on-year +5.26% +8.57% +6.71%
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 3,782 3,244 3,281
As % of all contract IT jobs advertised in the City of London 53.25% 50.34% 47.89%
Number of daily rates quoted 3,158 2,611 2,766
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 £338 £313
90th Percentile £700 £675 £640
Central London median daily rate £525 £500 £453
% change year-on-year +5.00% +10.50% +0.56%
Number of hourly rates quoted 21 12 9
City of London median hourly rate £21.50 £22.99 £19.00
Median hourly rate % change year-on-year -6.49% +21.01% -21.58%
10th Percentile £12.50 £13.31 £17.83
90th Percentile £38.47 £36.73 £54.60
Central London median hourly rate £21.50 £24.49 £19.00
% change year-on-year -12.19% +28.87% -21.58%

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 20 July 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 20 July 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 0 14 £475 +196.88%
Moorgate -1 9 £400 -27.27%
JavaScript
Central London

For the 6 months to 20 July 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.

1 548 (57.62%) HTML
2 469 (49.32%) CSS
3 416 (43.74%) Agile Software Development
4 373 (39.22%) AngularJS
5 321 (33.75%) HTML5
6 312 (32.81%) React
7 303 (31.86%) Java
8 248 (26.08%) Node.js
9 237 (24.92%) Finance
10 236 (24.82%) TDD
11 224 (23.55%) C#
12 215 (22.61%) .NET
13 183 (19.24%) Git (software)
14 181 (19.03%) Front End Development
15 178 (18.72%) CSS3
16 160 (16.82%) Banking
17 146 (15.35%) MVC
18 145 (15.25%) Amazon AWS
19 140 (14.72%) SQL
20 137 (14.41%) jQuery
21 132 (13.88%) Redux
22 130 (13.67%) RESTful
23 127 (13.35%) User Experience
24 120 (12.62%) BDD
24 120 (12.62%) Web Development
25 119 (12.51%) ES6
26 117 (12.30%) REST
27 112 (11.78%) Microsoft Azure
28 110 (11.57%) TypeScript
28 110 (11.57%) 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 26 (2.73%) CMS
2 25 (2.63%) Confluence
2 25 (2.63%) Elasticsearch
3 20 (2.10%) Apache Spark
4 19 (2.00%) SharePoint
4 19 (2.00%) WordPress
5 18 (1.89%) Apache
6 13 (1.37%) Sitecore CMS
6 13 (1.37%) Tomcat
7 12 (1.26%) Cloud Foundry
8 10 (1.05%) Drupal
8 10 (1.05%) Umbraco
9 8 (0.84%) Adobe Experience Manager
9 8 (0.84%) Apache Solr
9 8 (0.84%) WebSphere
10 7 (0.74%) Ethereum
11 6 (0.63%) Hyperledger
12 5 (0.53%) IIS
13 3 (0.32%) SharePoint 2013
13 3 (0.32%) WebLogic
Applications
1 20 (2.10%) Adobe Creative Suite
1 20 (2.10%) OmniGraffle
2 6 (0.63%) Photoshop
3 5 (0.53%) InVision
4 3 (0.32%) Adobe Illustrator
4 3 (0.32%) InfoPath
4 3 (0.32%) Microsoft Office
5 2 (0.21%) InDesign
5 2 (0.21%) Microsoft Excel
5 2 (0.21%) MS Visio
6 1 (0.11%) Acrobat
6 1 (0.11%) Adobe Premiere
6 1 (0.11%) HipChat
6 1 (0.11%) Microsoft Project
6 1 (0.11%) Moqups
Business Applications
1 11 (1.16%) Dynamics CRM
2 10 (1.05%) ION MarketView
3 9 (0.95%) Payment Gateway
4 6 (0.63%) Magento
5 5 (0.53%) Distributed Ledger
6 4 (0.42%) R3 Corda
7 2 (0.21%) SDL Web 8
8 1 (0.11%) Adobe Campaign
8 1 (0.11%) Eloqua
8 1 (0.11%) SAP ERP
8 1 (0.11%) Temenos T24
Cloud Services
1 145 (15.25%) Amazon AWS
2 112 (11.78%) Microsoft Azure
3 44 (4.63%) npm
4 34 (3.58%) Heroku
5 17 (1.79%) GitHub
6 15 (1.58%) PaaS
7 14 (1.47%) Serverless
8 11 (1.16%) Google Cloud Platform
9 10 (1.05%) SaaS
10 9 (0.95%) Cloud Computing
10 9 (0.95%) Office 365
11 8 (0.84%) Amazon S3
12 7 (0.74%) Amazon EC2
12 7 (0.74%) Google Analytics
12 7 (0.74%) Yarn
13 6 (0.63%) AWS Lambda
14 5 (0.53%) Adobe Creative Cloud
14 5 (0.53%) Google Tag Manager
15 4 (0.42%) Adobe Analytics
15 4 (0.42%) AWS CloudFormation
Communications & Networking
1 58 (6.10%) HTTP
2 47 (4.94%) SSL
3 34 (3.58%) DNS
4 32 (3.36%) FTP
4 32 (3.36%) TCP/IP
5 9 (0.95%) Internet
6 8 (0.84%) AMQP
6 8 (0.84%) Firewall
7 5 (0.53%) Intranet
8 4 (0.42%) HTTPS
9 3 (0.32%) WAN
10 2 (0.21%) DHCP
10 2 (0.21%) DKIM
10 2 (0.21%) DMARC
10 2 (0.21%) Ethernet
10 2 (0.21%) iSCSI
10 2 (0.21%) MPLS
10 2 (0.21%) SAN
10 2 (0.21%) VPN
10 2 (0.21%) Wireshark
Database & Business Intelligence
1 98 (10.30%) SQL Server
2 67 (7.05%) NoSQL
3 55 (5.78%) PostgreSQL
4 54 (5.68%) MongoDB
5 53 (5.57%) MySQL
6 47 (4.94%) Relational Database
7 23 (2.42%) Big Data
8 22 (2.31%) Redis
9 21 (2.21%) Apache Cassandra
10 17 (1.79%) RDBMS
11 15 (1.58%) Hadoop
12 13 (1.37%) Blockchain
13 11 (1.16%) SQL Server Reporting Services
14 10 (1.05%) SQL Server Integration Services
15 9 (0.95%) Amazon DynamoDB
15 9 (0.95%) Cosmos DB
15 9 (0.95%) SQL Server 2012
16 7 (0.74%) SQL Server 2016
17 6 (0.63%) Data Lake
17 6 (0.63%) SQL Server 2014
Development Applications
1 183 (19.24%) Git (software)
2 84 (8.83%) gulp
3 79 (8.31%) Jenkins
4 74 (7.78%) webpack
5 66 (6.94%) Selenium
6 59 (6.20%) JIRA
7 52 (5.47%) Jasmine
8 39 (4.10%) Cucumber
9 38 (4.00%) Maven
10 36 (3.79%) GitLab
11 33 (3.47%) Grunt
12 31 (3.26%) Babel
12 31 (3.26%) Gradle
13 26 (2.73%) TeamCity
14 22 (2.31%) JUnit
14 22 (2.31%) Mocha
15 20 (2.10%) NUnit
16 19 (2.00%) Axure RP
16 19 (2.00%) Balsamiq Mockups
16 19 (2.00%) WebDriver
General
1 237 (24.92%) Finance
2 160 (16.82%) Banking
3 72 (7.57%) Investment Banking
4 42 (4.42%) Retail
5 36 (3.79%) Front Office
6 29 (3.05%) Advertising
7 27 (2.84%) Marketing
8 26 (2.73%) Games
9 19 (2.00%) Back Office
9 19 (2.00%) Telecoms
10 16 (1.68%) Retail Banking
11 14 (1.47%) Financial Institution
12 12 (1.26%) Legal
13 11 (1.16%) Law
14 5 (0.53%) Publishing
15 4 (0.42%) Digital Economy
16 2 (0.21%) Pharmaceutical
17 1 (0.11%) Electronics
17 1 (0.11%) Interactive Media
17 1 (0.11%) Private Banking
Job Titles
1 751 (78.97%) Developer
2 165 (17.35%) JavaScript Developer
3 158 (16.61%) Front End Developer (Client-Side Developer)
4 123 (12.93%) React Developer
5 112 (11.78%) Java Developer
6 97 (10.20%) .NET Developer
7 90 (9.46%) Angular Developer
8 84 (8.83%) Full Stack Developer
9 74 (7.78%) C# Developer
10 70 (7.36%) Senior Developer
11 55 (5.78%) Web Developer
12 48 (5.05%) C# .NET Developer
13 47 (4.94%) UI Developer
14 46 (4.84%) HTML Developer
15 42 (4.42%) PHP Developer
16 39 (4.10%) Agile Developer
17 32 (3.36%) HTML CSS Developer
17 32 (3.36%) Node.js Developer
18 26 (2.73%) Agile Java Developer
19 24 (2.52%) Analyst
Libraries, Frameworks & Software Standards
1 548 (57.62%) HTML
2 469 (49.32%) CSS
3 373 (39.22%) AngularJS
4 321 (33.75%) HTML5
5 312 (32.81%) React
6 248 (26.08%) Node.js
7 215 (22.61%) .NET
8 178 (18.72%) CSS3
9 137 (14.41%) jQuery
10 132 (13.88%) Redux
11 130 (13.67%) RESTful
12 117 (12.30%) REST
13 107 (11.25%) ASP.NET
14 105 (11.04%) Web Services
15 102 (10.73%) Spring
16 99 (10.41%) Twitter Bootstrap
17 88 (9.25%) Sass
18 67 (7.05%) ASP.NET Web API
19 65 (6.83%) SOAP
20 60 (6.31%) JSON
Miscellaneous
1 127 (13.35%) User Experience
2 110 (11.57%) Greenfield Project
3 71 (7.47%) Fintech
4 69 (7.26%) Mobile App
5 26 (2.73%) Computer Science
5 26 (2.73%) Fixed Income
6 25 (2.63%) Foreign Exchange (FX)
7 22 (2.31%) Equities
7 22 (2.31%) iPad
8 21 (2.21%) Analytical Skills
9 17 (1.79%) Derivative
10 14 (1.47%) Enterprise Software
10 14 (1.47%) Management Information System
11 12 (1.26%) Linux Command Line
12 10 (1.05%) Credit Risk
12 10 (1.05%) Data Structures
13 9 (0.95%) Self-Motivation
14 8 (0.84%) Equity Derivative
15 7 (0.74%) Algorithms
16 6 (0.63%) Tandem
Operating Systems
1 98 (10.30%) Linux
2 41 (4.31%) Apple iOS
3 40 (4.21%) Android
4 32 (3.36%) Unix
5 15 (1.58%) Windows
6 9 (0.95%) Mac OS X
7 7 (0.74%) Windows Server
8 5 (0.53%) Mac OS
9 3 (0.32%) VMS
10 2 (0.21%) Oracle Linux
11 1 (0.11%) Red Hat Enterprise Linux
11 1 (0.11%) Solaris
Processes & Methodologies
1 416 (43.74%) Agile Software Development
2 236 (24.82%) TDD
3 181 (19.03%) Front End Development
4 146 (15.35%) MVC
5 120 (12.62%) BDD
5 120 (12.62%) Web Development
6 109 (11.46%) Microservices
7 102 (10.73%) DevOps
8 99 (10.41%) Test Automation
9 97 (10.20%) Scrum
10 92 (9.67%) Continuous Integration
11 76 (7.99%) OO
12 71 (7.47%) Software Engineering
13 68 (7.15%) E-Commerce
14 63 (6.62%) Problem-Solving
15 62 (6.52%) Open Source
16 57 (5.99%) Unit Testing
17 42 (4.42%) Responsive Web Design
18 40 (4.21%) Analytics
19 35 (3.68%) Kanban
Programming Languages
1 303 (31.86%) Java
2 224 (23.55%) C#
3 140 (14.72%) SQL
4 119 (12.51%) ES6
5 110 (11.57%) TypeScript
6 104 (10.94%) Python
7 66 (6.94%) PHP
8 60 (6.31%) Java 8
9 51 (5.36%) Ruby
10 32 (3.36%) Bash Shell
11 25 (2.63%) Scala
12 23 (2.42%) Groovy
13 19 (2.00%) R
14 17 (1.79%) T-SQL
15 16 (1.68%) C++
16 14 (1.47%) PowerShell
17 11 (1.16%) Apple Swift
17 11 (1.16%) C
17 11 (1.16%) Objective-C
18 9 (0.95%) Go
Qualifications
1 43 (4.52%) Degree
2 14 (1.47%) Computer Science Degree
2 14 (1.47%) Security Cleared
3 11 (1.16%) SC Cleared
4 3 (0.32%) Microsoft Certification
5 1 (0.11%) AWS Certification
5 1 (0.11%) BPSS Clearance
5 1 (0.11%) CEH
5 1 (0.11%) CISSP
5 1 (0.11%) DBS Check
5 1 (0.11%) DV Cleared
5 1 (0.11%) ISEB
5 1 (0.11%) ISTQB
5 1 (0.11%) Master's Degree
5 1 (0.11%) MOS
5 1 (0.11%) Numerate Degree
5 1 (0.11%) OSCP
5 1 (0.11%) PhD
5 1 (0.11%) SAFe Agilist
Quality Assurance & Compliance
1 61 (6.41%) QA
2 5 (0.53%) WCAG
3 4 (0.42%) Data Quality
3 4 (0.42%) Disclosure Scotland
3 4 (0.42%) GDPR
4 2 (0.21%) ISO/IEC 27001
4 2 (0.21%) SLA
5 1 (0.11%) HL7
5 1 (0.11%) MiFID
5 1 (0.11%) Solvency II
5 1 (0.11%) WAI
System Software
1 102 (10.73%) Docker
2 10 (1.05%) Active Directory
3 6 (0.63%) VMware Infrastructure
4 4 (0.42%) VMware ESXi
5 2 (0.21%) HDFS
5 2 (0.21%) NFS
6 1 (0.11%) Apache ZooKeeper
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 33 (3.47%) Kubernetes
2 29 (3.05%) Docker Swarm
3 27 (2.84%) Ansible
4 18 (1.89%) Opscode Chef
4 18 (1.89%) Puppet
5 10 (1.05%) Marathon
5 10 (1.05%) Mesos
6 6 (0.63%) Terraform
7 4 (0.42%) SCCM
7 4 (0.42%) systemd
8 3 (0.32%) Kibana
8 3 (0.32%) logstash
9 2 (0.21%) Grafana
9 2 (0.21%) HP Quality Center
9 2 (0.21%) Matomo
9 2 (0.21%) Packer
9 2 (0.21%) Prometheus
9 2 (0.21%) QRadar
9 2 (0.21%) Single Sign-On
9 2 (0.21%) WebSphere Cast Iron
Vendors
1 49 (5.15%) Microsoft
2 40 (4.21%) Adobe
3 34 (3.58%) Google
4 29 (3.05%) Salesforce.com
5 26 (2.73%) Oracle
6 16 (1.68%) Splunk
7 15 (1.58%) Apigee
8 13 (1.37%) Sitecore
9 10 (1.05%) ION Trading
9 10 (1.05%) SAP
10 8 (0.84%) Demandware
10 8 (0.84%) IBM
11 7 (0.74%) Tableau
11 7 (0.74%) VMware
12 6 (0.63%) AppDynamics
12 6 (0.63%) Apple
12 6 (0.63%) Atlassian
12 6 (0.63%) Cisco
13 5 (0.53%) Fidessa
13 5 (0.53%) Sybase