Period
to 22 November 2017

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 November 2017 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 Nov 2017
Same period 2016 Same period 2015
Rank 8 8 12
Rank change year-on-year 0 +4 +1
Contract jobs citing JavaScript 971 925 863
As % of all contract IT jobs advertised in the City of London 13.57% 13.81% 9.60%
As % of the Programming Languages category 25.74% 27.42% 20.51%
Number of daily rates quoted 814 798 712
City of London median daily rate £499 £450 £443
Median daily rate % change year-on-year +10.83% +1.69% +7.27%
10th Percentile £326 £325 £305
90th Percentile £638 £625 £604
Central London median daily rate £475 £450 £438
% change year-on-year +5.56% +2.86% +9.38%
Number of hourly rates quoted 1 0 3
City of London median hourly rate £27.09 - £26.32
10th Percentile £25.66 - £20.93
90th Percentile £28.52 - £160.60
Central London median hourly rate £27.09 - £26.32

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 3773 3374 4208
As % of all contract IT jobs advertised in the City of London 52.71% 50.38% 46.83%
Number of daily rates quoted 3134 2835 3524
City of London median daily rate £525 £475 £475
Median daily rate % change year-on-year +10.53% - +5.56%
10th Percentile £363 £325 £313
90th Percentile £688 £650 £663
Central London median daily rate £513 £475 £475
% change year-on-year +7.89% - +5.56%
Number of hourly rates quoted 14 10 22
City of London median hourly rate £22.99 £27.50 £26.09
Median hourly rate % change year-on-year -16.39% +5.42% +30.43%
10th Percentile £15.12 £16.06 £16.10
90th Percentile £39.10 £55.19 £53.70
Central London median hourly rate £24.49 £27.50 £26.09
% change year-on-year -10.96% +5.42% +30.43%

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 November 2017.

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 November 2017. 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 +2 4 £350 +12.00%
Moorgate -3 3 £550 +61.76%
JavaScript
Central London

For the 6 months to 22 November 2017, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the City of London region with a requirement for JavaScript.

1 555 (57.16%) HTML
2 468 (48.20%) CSS
3 448 (46.14%) Agile Software Development
4 366 (37.69%) AngularJS
5 353 (36.35%) Java
6 305 (31.41%) HTML5
6 305 (31.41%) React
7 287 (29.56%) TDD
8 281 (28.94%) Finance
9 238 (24.51%) Node.js
10 200 (20.60%) Front End Development
11 189 (19.46%) Banking
11 189 (19.46%) jQuery
12 187 (19.26%) SQL
13 183 (18.85%) C#
14 182 (18.74%) .NET
15 171 (17.61%) Git (software)
16 162 (16.68%) CSS3
17 151 (15.55%) Web Development
18 149 (15.35%) Scrum
19 147 (15.14%) BDD
20 144 (14.83%) MVC
20 144 (14.83%) Web Services
21 126 (12.98%) Continuous Integration
22 119 (12.26%) Redux
23 118 (12.15%) SQL Server
24 113 (11.64%) User Experience
25 112 (11.53%) Amazon AWS
25 112 (11.53%) Sass
26 111 (11.43%) RESTful

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 41 (4.22%) Apache
2 33 (3.40%) CMS
3 27 (2.78%) Elasticsearch
4 23 (2.37%) Drupal
5 16 (1.65%) SharePoint
5 16 (1.65%) WordPress
6 13 (1.34%) Tomcat
6 13 (1.34%) WebSphere
7 12 (1.24%) Apache Solr
8 11 (1.13%) Apache Spark
8 11 (1.13%) JBoss
9 9 (0.93%) Confluence
10 7 (0.72%) IIS
11 6 (0.62%) Cloud Foundry
11 6 (0.62%) MQSeries
11 6 (0.62%) SharePoint 2013
11 6 (0.62%) WildFly
12 5 (0.51%) Umbraco
13 4 (0.41%) Adobe Experience Manager
13 4 (0.41%) nginx
Applications
1 17 (1.75%) Adobe Creative Suite
2 13 (1.34%) Microsoft Excel
3 10 (1.03%) OmniGraffle
3 10 (1.03%) Photoshop
4 5 (0.51%) Adobe Illustrator
5 3 (0.31%) Microsoft Office
6 2 (0.21%) InfoPath
6 2 (0.21%) Microsoft PowerPoint
6 2 (0.21%) Microsoft Project
6 2 (0.21%) MS Visio
7 1 (0.10%) Chatbot
7 1 (0.10%) GIMP
7 1 (0.10%) InVision
Business Applications
1 33 (3.40%) Dynamics CRM
2 5 (0.51%) ION MarketView
3 4 (0.41%) Adobe Campaign
3 4 (0.41%) Magento
4 2 (0.21%) Eloqua
4 2 (0.21%) OpenText MBPM
4 2 (0.21%) OpenText Process Suite
4 2 (0.21%) Oracle BPM
4 2 (0.21%) Payment Gateway
5 1 (0.10%) Exstream
5 1 (0.10%) RMDS
5 1 (0.10%) Salesforce.com CRM
5 1 (0.10%) SAP S/4HANA
5 1 (0.10%) WebTrends
Cloud Services
1 112 (11.53%) Amazon AWS
2 45 (4.63%) Microsoft Azure
3 34 (3.50%) npm
4 17 (1.75%) GitHub
5 15 (1.54%) SaaS
6 11 (1.13%) PaaS
7 8 (0.82%) Cloud Computing
7 8 (0.82%) Heroku
8 7 (0.72%) Google Analytics
8 7 (0.72%) IaaS
8 7 (0.72%) Office 365
9 6 (0.62%) AWS CloudFormation
10 5 (0.51%) Adobe Analytics
10 5 (0.51%) Amazon S3
10 5 (0.51%) Amazon SQS
10 5 (0.51%) Google Play
11 4 (0.41%) Google Cloud Platform
11 4 (0.41%) Route 53
11 4 (0.41%) Serverless
12 3 (0.31%) Amazon Kinesis
Communications & Networking
1 25 (2.57%) HTTP
2 12 (1.24%) Firewall
3 11 (1.13%) Internet
4 10 (1.03%) TCP/IP
5 9 (0.93%) Intranet
6 4 (0.41%) FTP
6 4 (0.41%) Network Security
6 4 (0.41%) SSL
7 3 (0.31%) DNS
7 3 (0.31%) Ethernet
7 3 (0.31%) SSH
8 2 (0.21%) LDAP
8 2 (0.21%) Unified Communications
8 2 (0.21%) VPLS
9 1 (0.10%) BIG-IP
9 1 (0.10%) HTTPS
9 1 (0.10%) LAN
9 1 (0.10%) NetScaler
9 1 (0.10%) SMS
9 1 (0.10%) SMTP
Database & Business Intelligence
1 118 (12.15%) SQL Server
2 72 (7.42%) MongoDB
3 63 (6.49%) NoSQL
4 52 (5.36%) MySQL
5 29 (2.99%) Relational Database
6 22 (2.27%) PostgreSQL
7 21 (2.16%) Big Data
8 18 (1.85%) Apache Cassandra
8 18 (1.85%) SQL Server 2008
9 14 (1.44%) SQL Server Reporting Services
10 12 (1.24%) Hadoop
10 12 (1.24%) SQL Server 2016
10 12 (1.24%) SQL Server Integration Services
11 11 (1.13%) Flink
12 10 (1.03%) Amazon DynamoDB
12 10 (1.03%) RDBMS
12 10 (1.03%) Redis
13 8 (0.82%) Apache Hive
13 8 (0.82%) Neo4j
14 7 (0.72%) SQL Server Analysis Services
Development Applications
1 171 (17.61%) Git (software)
2 72 (7.42%) Jenkins
3 69 (7.11%) gulp
4 58 (5.97%) webpack
5 54 (5.56%) Grunt
6 53 (5.46%) Jasmine
7 42 (4.33%) TeamCity
8 40 (4.12%) JIRA
9 38 (3.91%) Selenium
10 34 (3.50%) Maven
11 30 (3.09%) Team Foundation Server
12 28 (2.88%) Cucumber
13 24 (2.47%) IntelliJ
13 24 (2.47%) Visual Studio
14 23 (2.37%) Babel
14 23 (2.37%) Mocha
15 20 (2.06%) Subversion
16 18 (1.85%) Bower
17 17 (1.75%) Axure RP
17 17 (1.75%) NUnit
General
1 281 (28.94%) Finance
2 189 (19.46%) Banking
3 51 (5.25%) Front Office
4 49 (5.05%) Investment Banking
5 42 (4.33%) Marketing
6 39 (4.02%) Retail
7 30 (3.09%) Games
8 25 (2.57%) Telecoms
9 24 (2.47%) Law
10 23 (2.37%) Financial Institution
10 23 (2.37%) Legal
11 12 (1.24%) Advertising
12 11 (1.13%) Billing
12 11 (1.13%) Publishing
13 8 (0.82%) Retail Banking
14 5 (0.51%) Back Office
14 5 (0.51%) Manufacturing
14 5 (0.51%) Music Industry
15 3 (0.31%) Digital Economy
15 3 (0.31%) Electronics
Job Titles
1 748 (77.03%) Developer
2 164 (16.89%) JavaScript Developer
3 139 (14.32%) Java Developer
4 118 (12.15%) Front End Developer (Client-Side Developer)
5 102 (10.50%) Full Stack Developer
6 92 (9.47%) Senior Developer
7 78 (8.03%) Angular Developer
8 73 (7.52%) .NET Developer
9 59 (6.08%) C# Developer
10 53 (5.46%) HTML Developer
11 46 (4.74%) Web Developer
12 44 (4.53%) Java Engineer
13 39 (4.02%) JavaScript Engineer
14 38 (3.91%) Agile Developer
15 36 (3.71%) UI Developer
16 35 (3.60%) SQL Developer
17 34 (3.50%) C# .NET Developer
18 31 (3.19%) Senior JavaScript Developer
19 30 (3.09%) HTML CSS Developer
19 30 (3.09%) Node.js Developer
Libraries, Frameworks & Software Standards
1 555 (57.16%) HTML
2 468 (48.20%) CSS
3 366 (37.69%) AngularJS
4 305 (31.41%) HTML5
4 305 (31.41%) React
5 238 (24.51%) Node.js
6 189 (19.46%) jQuery
7 182 (18.74%) .NET
8 162 (16.68%) CSS3
9 144 (14.83%) Web Services
10 119 (12.26%) Redux
11 112 (11.53%) Sass
12 111 (11.43%) RESTful
13 101 (10.40%) REST
14 86 (8.86%) Spring
15 84 (8.65%) Twitter Bootstrap
16 80 (8.24%) XML
17 77 (7.93%) JSON
18 75 (7.72%) ASP.NET
19 70 (7.21%) Ajax
Miscellaneous
1 113 (11.64%) User Experience
2 89 (9.17%) Greenfield Project
3 74 (7.62%) Mobile App
4 46 (4.74%) Fintech
5 42 (4.33%) Analytical Skills
6 28 (2.88%) Hedge funds
7 23 (2.37%) Virtual Team
8 22 (2.27%) Computer Science
9 17 (1.75%) Data Structures
9 17 (1.75%) Foreign Exchange (FX)
10 15 (1.54%) NHS
11 13 (1.34%) Derivative
11 13 (1.34%) Enterprise Software
12 12 (1.24%) Algorithms
13 10 (1.03%) Market Risk
14 8 (0.82%) Equity Derivative
14 8 (0.82%) Fixed Income
15 7 (0.72%) Animation
15 7 (0.72%) Credit Risk
16 6 (0.62%) Social Media
Operating Systems
1 79 (8.14%) Linux
2 47 (4.84%) Unix
3 43 (4.43%) Windows
4 36 (3.71%) Android
4 36 (3.71%) Apple iOS
5 13 (1.34%) Red Hat Enterprise Linux
6 9 (0.93%) Windows Server
7 4 (0.41%) Windows 10
8 2 (0.21%) CoreOS
9 1 (0.10%) AIX
9 1 (0.10%) Mac OS X
9 1 (0.10%) Windows Server 2008
Processes & Methodologies
1 448 (46.14%) Agile Software Development
2 287 (29.56%) TDD
3 200 (20.60%) Front End Development
4 151 (15.55%) Web Development
5 149 (15.35%) Scrum
6 147 (15.14%) BDD
7 144 (14.83%) MVC
8 126 (12.98%) Continuous Integration
9 108 (11.12%) OO
10 90 (9.27%) Test Automation
11 87 (8.96%) E-Commerce
12 81 (8.34%) DevOps
13 74 (7.62%) Software Engineering
14 61 (6.28%) SDLC
15 59 (6.08%) Kanban
15 59 (6.08%) Pair Programming
16 55 (5.66%) Microservices
17 54 (5.56%) Open Source
18 50 (5.15%) CRM
19 48 (4.94%) SOA
Programming Languages
1 353 (36.35%) Java
2 187 (19.26%) SQL
3 183 (18.85%) C#
4 104 (10.71%) ES6
5 74 (7.62%) PHP
6 62 (6.39%) Python
7 51 (5.25%) TypeScript
8 35 (3.60%) C++
9 27 (2.78%) Groovy
10 25 (2.57%) Scala
11 20 (2.06%) Ruby
12 19 (1.96%) PL/SQL
12 19 (1.96%) T-SQL
13 15 (1.54%) Objective-C
14 13 (1.34%) Perl
15 12 (1.24%) GraphQL
16 11 (1.13%) Shell Script
17 9 (0.93%) ECMAScript
17 9 (0.93%) PowerShell
18 8 (0.82%) Apex Code
Qualifications
1 27 (2.78%) Degree
2 10 (1.03%) Computer Science Degree
3 9 (0.93%) Security Cleared
4 6 (0.62%) SC Cleared
5 4 (0.41%) Microsoft Certification
6 1 (0.10%) AWS Certification
6 1 (0.10%) IBM Certification
6 1 (0.10%) MCP
6 1 (0.10%) MCPD
6 1 (0.10%) MCSE
6 1 (0.10%) Numerate Degree
6 1 (0.10%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 59 (6.08%) QA
2 7 (0.72%) ISO/IEC 27001
3 6 (0.62%) MiFID
4 3 (0.31%) Data Quality
5 2 (0.21%) Solvency II
5 2 (0.21%) WCAG
6 1 (0.10%) GCP
6 1 (0.10%) PMO
System Software
1 58 (5.97%) Docker
2 14 (1.44%) Active Directory
3 4 (0.41%) Varnish
4 3 (0.31%) Apache ZooKeeper
4 3 (0.31%) etcd
5 1 (0.10%) HDFS
5 1 (0.10%) VMware Infrastructure
5 1 (0.10%) vSphere
Systems Management
1 28 (2.88%) Ansible
2 20 (2.06%) Opscode Chef
3 13 (1.34%) Puppet
4 12 (1.24%) Kubernetes
5 7 (0.72%) Terraform
6 6 (0.62%) Docker Swarm
7 5 (0.51%) Grafana
8 4 (0.41%) Kibana
8 4 (0.41%) Mesos
9 3 (0.31%) Consul
9 3 (0.31%) Sysdig
10 1 (0.10%) Backup Exec
10 1 (0.10%) CA Service Virtualization
10 1 (0.10%) HockeyApp
10 1 (0.10%) logstash
10 1 (0.10%) Norton AntiVirus
10 1 (0.10%) Packer
10 1 (0.10%) Piwik
10 1 (0.10%) Thomson Reuters DACS
10 1 (0.10%) ZABBIX
Vendors
1 94 (9.68%) Microsoft
2 33 (3.40%) Adobe
3 32 (3.30%) Oracle
4 25 (2.57%) Google
5 24 (2.47%) Apigee
6 22 (2.27%) New Relic
6 22 (2.27%) Salesforce.com
7 16 (1.65%) IBM
8 12 (1.24%) Red Hat
9 11 (1.13%) ServiceNow
10 6 (0.62%) Apple
10 6 (0.62%) Atlassian
10 6 (0.62%) VMware
10 6 (0.62%) Xamarin
11 5 (0.51%) DevExpress
11 5 (0.51%) ION Trading
11 5 (0.51%) SAP
11 5 (0.51%) Splunk
11 5 (0.51%) TIBCO
11 5 (0.51%) Zend