Period
to 22 June 2018

The following table provides summary statistics for contract job vacancies advertised in 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 June 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)
England > London
6 months to
22 Jun 2018
Same period 2017 Same period 2016
Rank 7 8 8
Rank change year-on-year +1 0 +2
Contract jobs citing JavaScript 5,944 5,019 5,276
As % of all contract IT jobs advertised in London 13.18% 12.57% 12.04%
As % of the Programming Languages category 27.10% 26.79% 28.00%
Number of daily rates quoted 4,585 3,859 4,131
London median daily rate £500 £470 £440
Median daily rate % change year-on-year +6.38% +6.82% +6.67%
10th Percentile £358 £319 £306
90th Percentile £638 £625 £613
England median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +6.67%
Number of hourly rates quoted 27 21 23
London median hourly rate £33.77 £27.50 £42.60
Median hourly rate % change year-on-year +22.80% -35.44% +89.31%
10th Percentile £17.52 £16.00 £20.44
90th Percentile £49.25 £52.00 £168.00
England median hourly rate £41.50 £41.50 £38.00
% change year-on-year - +9.21% +31.74%

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 London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 21,932 18,733 18,842
As % of all contract IT jobs advertised in London 48.64% 46.93% 42.99%
Number of daily rates quoted 16,706 13,889 14,251
London median daily rate £505 £490 £450
Median daily rate % change year-on-year +3.06% +8.89% -
10th Percentile £358 £325 £308
90th Percentile £675 £650 £638
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 196 146 95
London median hourly rate £42.50 £40.63 £29.64
Median hourly rate % change year-on-year +4.60% +37.08% +7.72%
10th Percentile £18.48 £17.89 £14.33
90th Percentile £66.25 £54.38 £56.50
England median hourly rate £41.50 £41.50 £38.50
% change year-on-year - +7.79% +10.00%

JavaScript
Job Vacancy Trend in London

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

Job vacancy trend for JavaScript in London

JavaScript
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JavaScript in London

JavaScript
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript in London over the 6 months to 22 June 2018.

Contractor daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for JavaScript in London

JavaScript
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing JavaScript in London over the 6 months to 22 June 2018.

Contractor hourly rate histogram for JavaScript in London

JavaScript
Contract Job Locations in 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 London region over the 6 months to 22 June 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
Central London +2 1,327 £500 +5.26% 462
West London +5 254 £475 +11.76% 263
South London +7 197 £450 +12.50% 37
East London +3 141 £450 - 110
North London -5 18 £450 +12.50% 20
JavaScript
England

For the 6 months to 22 June 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 London region with a requirement for JavaScript.

1 3,185 (53.58%) HTML
2 2,932 (49.33%) CSS
3 2,829 (47.59%) Agile Software Development
4 2,114 (35.57%) AngularJS
5 1,915 (32.22%) React
6 1,691 (28.45%) HTML5
7 1,658 (27.89%) Node.js
8 1,555 (26.16%) Java
9 1,525 (25.66%) TDD
10 1,230 (20.69%) Front End Development
11 1,206 (20.29%) Git (software)
12 1,190 (20.02%) Finance
13 1,105 (18.59%) .NET
14 1,079 (18.15%) C#
15 1,068 (17.97%) CSS3
16 949 (15.97%) SQL
17 841 (14.15%) Redux
18 836 (14.06%) MVC
19 829 (13.95%) jQuery
20 795 (13.37%) Amazon AWS
21 793 (13.34%) Scrum
22 754 (12.69%) Web Development
23 753 (12.67%) ES6
24 746 (12.55%) REST
25 741 (12.47%) User Experience
26 737 (12.40%) Test Automation
27 733 (12.33%) BDD
28 732 (12.31%) Sass
29 695 (11.69%) Banking
30 684 (11.51%) Python

JavaScript
Co-occurring IT Skills in 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
1 226 (3.80%) Elasticsearch
2 223 (3.75%) CMS
3 191 (3.21%) Confluence
4 98 (1.65%) Apache
5 93 (1.56%) SharePoint
6 92 (1.55%) Tomcat
7 82 (1.38%) WordPress
8 80 (1.35%) Apache Spark
9 63 (1.06%) Drupal
10 59 (0.99%) Adobe Experience Manager
11 56 (0.94%) IIS
12 53 (0.89%) WebSphere
13 50 (0.84%) JBoss
14 46 (0.77%) Sitecore CMS
15 37 (0.62%) Umbraco
16 36 (0.61%) Cloud Foundry
17 31 (0.52%) nginx
18 30 (0.50%) WebLogic
19 25 (0.42%) Apache Solr
20 24 (0.40%) EPiServer
Applications
1 108 (1.82%) Photoshop
2 34 (0.57%) Adobe Creative Suite
3 30 (0.50%) InVision
4 28 (0.47%) Adobe Illustrator
5 27 (0.45%) Microsoft Excel
6 23 (0.39%) OmniGraffle
7 18 (0.30%) Microsoft Office
8 13 (0.22%) InfoPath
9 9 (0.15%) MS Visio
10 8 (0.13%) GIMP
10 8 (0.13%) InDesign
11 7 (0.12%) Chatbot
11 7 (0.12%) Microsoft Project
12 4 (0.067%) Microsoft PowerPoint
12 4 (0.067%) UXPin
13 3 (0.050%) Acrobat
13 3 (0.050%) Adobe Premiere
13 3 (0.050%) HipChat
14 2 (0.034%) Fireworks
14 2 (0.034%) SPSS
Business Applications
1 46 (0.77%) Dynamics CRM
1 46 (0.77%) Magento
2 34 (0.57%) ION MarketView
3 23 (0.39%) Payment Gateway
4 14 (0.24%) SAP Oil and Gas
5 11 (0.19%) Distributed Ledger
5 11 (0.19%) R3 Corda
6 6 (0.10%) Adobe Campaign
6 6 (0.10%) SAP ERP
6 6 (0.10%) SDL Web 8
6 6 (0.10%) SunGard Martini
7 5 (0.084%) Eloqua
7 5 (0.084%) TRIRIGA
8 4 (0.067%) WebTrends
9 3 (0.050%) Salesforce.com CRM
10 2 (0.034%) Dynamics NAV
10 2 (0.034%) NetSuite
10 2 (0.034%) SAP Hybris
10 2 (0.034%) SAP PM
10 2 (0.034%) Shopify
Cloud Services
1 795 (13.37%) Amazon AWS
2 611 (10.28%) Microsoft Azure
3 279 (4.69%) npm
4 198 (3.33%) GitHub
5 180 (3.03%) Serverless
6 95 (1.60%) PaaS
7 83 (1.40%) SaaS
8 81 (1.36%) Heroku
9 80 (1.35%) Google Cloud Platform
10 61 (1.03%) AWS Lambda
11 59 (0.99%) Google Analytics
12 51 (0.86%) Amazon S3
12 51 (0.86%) Cloud Computing
13 43 (0.72%) Office 365
14 36 (0.61%) Yarn
15 33 (0.56%) Amazon EC2
16 32 (0.54%) IaaS
17 28 (0.47%) Adobe Analytics
18 24 (0.40%) Google Tag Manager
19 23 (0.39%) Amazon SQS
Communications & Networking
1 243 (4.09%) HTTP
2 84 (1.41%) Internet
3 64 (1.08%) SSL
4 43 (0.72%) DNS
5 33 (0.56%) FTP
6 28 (0.47%) SMS
6 28 (0.47%) TCP/IP
7 22 (0.37%) AMQP
7 22 (0.37%) Firewall
8 17 (0.29%) Intranet
9 14 (0.24%) VPN
10 13 (0.22%) HTTPS
10 13 (0.22%) RTMP
11 10 (0.17%) WAN
12 8 (0.13%) SSH
13 7 (0.12%) Broadband
13 7 (0.12%) Kerberos
13 7 (0.12%) MPLS
13 7 (0.12%) Wi-Fi
14 6 (0.10%) SAN
Database & Business Intelligence
1 607 (10.21%) SQL Server
2 410 (6.90%) MySQL
3 345 (5.80%) PostgreSQL
4 328 (5.52%) Relational Database
5 319 (5.37%) MongoDB
6 303 (5.10%) NoSQL
7 175 (2.94%) Redis
8 150 (2.52%) Big Data
9 103 (1.73%) Hadoop
10 83 (1.40%) Blockchain
11 66 (1.11%) Apache Cassandra
12 64 (1.08%) Cosmos DB
13 62 (1.04%) RDBMS
14 60 (1.01%) HBase
15 54 (0.91%) Amazon DynamoDB
16 49 (0.82%) Power BI
17 46 (0.77%) SQL Server Reporting Services
18 43 (0.72%) Neo4j
19 40 (0.67%) Data Warehouse
19 40 (0.67%) SQL Server 2012
Development Applications
1 1,206 (20.29%) Git (software)
2 556 (9.35%) Jenkins
3 486 (8.18%) webpack
4 387 (6.51%) JIRA
5 347 (5.84%) gulp
6 330 (5.55%) Jasmine
7 325 (5.47%) Selenium
8 259 (4.36%) Grunt
9 217 (3.65%) Mocha
10 208 (3.50%) Subversion
11 197 (3.31%) Cucumber
12 191 (3.21%) Karma Test Runner
13 186 (3.13%) Visual Studio
14 183 (3.08%) Maven
15 153 (2.57%) TeamCity
16 149 (2.51%) Babel
17 136 (2.29%) JUnit
17 136 (2.29%) Protractor
18 125 (2.10%) WebDriver
19 112 (1.88%) Team Foundation Server
General
1 1,190 (20.02%) Finance
2 695 (11.69%) Banking
3 289 (4.86%) Retail
4 236 (3.97%) Front Office
5 223 (3.75%) Investment Banking
6 157 (2.64%) Marketing
7 126 (2.12%) Games
8 92 (1.55%) Advertising
9 87 (1.46%) Telecoms
10 79 (1.33%) Law
11 57 (0.96%) Back Office
12 55 (0.93%) Legal
13 52 (0.87%) Financial Institution
14 34 (0.57%) Publishing
15 23 (0.39%) Retail Banking
16 15 (0.25%) Manufacturing
17 11 (0.19%) Pharmaceutical
18 10 (0.17%) French Language
18 10 (0.17%) Multimedia
19 8 (0.13%) Spanish Language
Job Titles
1 4,602 (77.42%) Developer
2 1,172 (19.72%) JavaScript Developer
3 990 (16.66%) Front End Developer (Client-Side Developer)
4 935 (15.73%) React Developer
5 546 (9.19%) Angular Developer
6 538 (9.05%) Senior Developer
7 535 (9.00%) Full Stack Developer
8 530 (8.92%) .NET Developer
9 509 (8.56%) Java Developer
10 426 (7.17%) C# Developer
11 361 (6.07%) Node.js Developer
12 296 (4.98%) HTML Developer
13 264 (4.44%) UI Developer
14 253 (4.26%) Web Developer
15 243 (4.09%) C# .NET Developer
16 192 (3.23%) Python Developer
17 177 (2.98%) HTML CSS Developer
18 158 (2.66%) Architect
19 153 (2.57%) PHP Developer
20 137 (2.30%) ASP.NET Developer
Libraries, Frameworks & Software Standards
1 3,185 (53.58%) HTML
2 2,932 (49.33%) CSS
3 2,114 (35.57%) AngularJS
4 1,915 (32.22%) React
5 1,691 (28.45%) HTML5
6 1,658 (27.89%) Node.js
7 1,105 (18.59%) .NET
8 1,068 (17.97%) CSS3
9 841 (14.15%) Redux
10 829 (13.95%) jQuery
11 746 (12.55%) REST
12 732 (12.31%) Sass
13 669 (11.26%) RESTful
14 612 (10.30%) Web Services
15 580 (9.76%) ASP.NET
16 472 (7.94%) Spring
17 426 (7.17%) JSON
18 416 (7.00%) Twitter Bootstrap
19 389 (6.54%) XML
20 353 (5.94%) ASP.NET Web API
Miscellaneous
1 741 (12.47%) User Experience
2 560 (9.42%) Greenfield Project
3 372 (6.26%) Mobile App
4 331 (5.57%) Fintech
5 274 (4.61%) Analytical Skills
6 219 (3.68%) Computer Science
7 140 (2.36%) Fixed Income
8 124 (2.09%) Foreign Exchange (FX)
9 107 (1.80%) Algorithms
10 106 (1.78%) Data Structures
11 94 (1.58%) Enterprise Software
12 65 (1.09%) Equities
13 60 (1.01%) Derivative
14 59 (0.99%) Self-Motivation
15 57 (0.96%) Hedge funds
16 47 (0.79%) Virtual Team
17 36 (0.61%) Equity Derivative
18 35 (0.59%) Linux Command Line
19 34 (0.57%) Social Media
20 32 (0.54%) Online Banking
Operating Systems
1 549 (9.24%) Linux
2 286 (4.81%) Android
3 260 (4.37%) Apple iOS
4 178 (2.99%) Unix
5 166 (2.79%) Windows
6 48 (0.81%) Windows Server
7 42 (0.71%) Mac OS X
8 24 (0.40%) Red Hat Enterprise Linux
9 21 (0.35%) Mac OS
10 19 (0.32%) Ubuntu
11 13 (0.22%) Solaris
12 12 (0.20%) CentOS
13 10 (0.17%) HPUX
14 9 (0.15%) Windows Server 2008
15 6 (0.10%) Debian
15 6 (0.10%) Nucleus RTOS
15 6 (0.10%) Windows Server 2012
16 5 (0.084%) Windows Phone
17 4 (0.067%) Windows 10
17 4 (0.067%) Windows 7
Processes & Methodologies
1 2,829 (47.59%) Agile Software Development
2 1,525 (25.66%) TDD
3 1,230 (20.69%) Front End Development
4 836 (14.06%) MVC
5 793 (13.34%) Scrum
6 754 (12.69%) Web Development
7 737 (12.40%) Test Automation
8 733 (12.33%) BDD
9 680 (11.44%) DevOps
10 675 (11.36%) Microservices
11 659 (11.09%) Continuous Integration
12 632 (10.63%) OO
13 562 (9.45%) E-Commerce
14 462 (7.77%) Software Engineering
14 462 (7.77%) Unit Testing
15 427 (7.18%) Problem-Solving
16 371 (6.24%) Open Source
17 329 (5.53%) Responsive Web Design
18 303 (5.10%) Analytics
19 273 (4.59%) Kanban
Programming Languages
1 1,555 (26.16%) Java
2 1,079 (18.15%) C#
3 949 (15.97%) SQL
4 753 (12.67%) ES6
5 684 (11.51%) Python
6 495 (8.33%) TypeScript
7 356 (5.99%) PHP
8 278 (4.68%) Ruby
9 242 (4.07%) Java 8
10 216 (3.63%) Scala
11 134 (2.25%) Go
12 127 (2.14%) Bash Shell
12 127 (2.14%) ES7
13 110 (1.85%) C++
14 98 (1.65%) Perl
15 95 (1.60%) PowerShell
16 93 (1.56%) T-SQL
17 70 (1.18%) C
18 67 (1.13%) Shell Script
19 58 (0.98%) PL/SQL
Qualifications
1 255 (4.29%) Degree
2 219 (3.68%) Security Cleared
3 190 (3.20%) SC Cleared
4 107 (1.80%) Computer Science Degree
5 36 (0.61%) BPSS Clearance
6 26 (0.44%) Master's Degree
7 18 (0.30%) DV Cleared
8 13 (0.22%) ITIL Certification
9 12 (0.20%) AWS Certification
10 10 (0.17%) CTC Cleared
10 10 (0.17%) ISTQB
11 8 (0.13%) Microsoft Certification
12 6 (0.10%) PhD
13 5 (0.084%) ISTQB Foundation Certification
13 5 (0.084%) PMI Certification
14 3 (0.050%) DBS Check
14 3 (0.050%) MCSD
15 2 (0.034%) OCPJP
15 2 (0.034%) PMP
15 2 (0.034%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 271 (4.56%) QA
2 28 (0.47%) SLA
3 25 (0.42%) Data Quality
4 22 (0.37%) GDPR
5 21 (0.35%) PCI DSS
6 17 (0.29%) Disclosure Scotland
7 15 (0.25%) WCAG
8 10 (0.17%) GCP
9 7 (0.12%) MiFID
10 6 (0.10%) ISO/IEC 27001
11 5 (0.084%) PMO
11 5 (0.084%) WAI
12 3 (0.050%) PMBOK
12 3 (0.050%) Solvency II
13 2 (0.034%) Actionable Recommendations
14 1 (0.017%) HL7
14 1 (0.017%) ISO 20022
14 1 (0.017%) ISO 8583
System Software
1 576 (9.69%) Docker
2 39 (0.66%) Active Directory
3 17 (0.29%) VMware Infrastructure
4 15 (0.25%) HDFS
5 10 (0.17%) Varnish
6 9 (0.15%) etcd
6 9 (0.15%) Virtual Machines
7 8 (0.13%) VMware NSX
8 7 (0.12%) OpenAM
9 6 (0.10%) Apache Flume
9 6 (0.10%) Oracle RAC
9 6 (0.10%) VMware ESXi
10 5 (0.084%) Hyper-V
11 4 (0.067%) Apache ZooKeeper
11 4 (0.067%) flannel
11 4 (0.067%) NFS
11 4 (0.067%) vSphere
12 3 (0.050%) KVM
12 3 (0.050%) Xen
13 2 (0.034%) Squid
Systems Management
1 199 (3.35%) Ansible
2 172 (2.89%) Kubernetes
3 165 (2.78%) Puppet
4 131 (2.20%) Opscode Chef
5 77 (1.30%) Terraform
6 51 (0.86%) Kibana
7 39 (0.66%) Docker Swarm
8 34 (0.57%) Grafana
9 33 (0.56%) Salt
10 30 (0.50%) logstash
11 24 (0.40%) Single Sign-On
12 18 (0.30%) Mesos
13 17 (0.29%) Prometheus
14 15 (0.25%) Nagios
15 13 (0.22%) vRealize
15 13 (0.22%) vRealize Orchestrator
16 12 (0.20%) SCCM
17 11 (0.19%) Packer
18 10 (0.17%) Hadoop YARN
19 8 (0.13%) Fluentd
Vendors
1 343 (5.77%) Microsoft
2 230 (3.87%) Oracle
3 220 (3.70%) Google
4 196 (3.30%) Adobe
5 88 (1.48%) Salesforce.com
6 84 (1.41%) ServiceNow
7 71 (1.19%) Sybase
8 65 (1.09%) SAP
9 58 (0.98%) Sitecore
10 56 (0.94%) IBM
11 46 (0.77%) Splunk
12 44 (0.74%) Atlassian
13 39 (0.66%) Apigee
13 39 (0.66%) Tableau
14 34 (0.57%) ION Trading
15 31 (0.52%) Twitter
16 30 (0.50%) Capita
16 30 (0.50%) hybris
17 28 (0.47%) Alteryx
17 28 (0.47%) VMware