Period
to 18 February 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 18 February 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
18 Feb 2019
Same period 2018 Same period 2017
Rank 7 8 8
Rank change year-on-year +1 0 +3
Contract jobs citing JavaScript 863 966 785
As % of all contract IT jobs advertised in the City of London 12.77% 13.78% 12.82%
As % of the Programming Languages category 24.01% 25.84% 25.57%
Number of daily rates quoted 721 830 685
City of London median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% +5.56%
10th Percentile £375 £363 £325
90th Percentile £665 £638 £625
Central London median daily rate £500 £495 £463
% change year-on-year +1.01% +7.03% +5.71%
Number of hourly rates quoted 1 1 0
City of London median hourly rate £19.00 £27.09 -
Median hourly rate % change year-on-year -29.86% - -
Central London median hourly rate £19.00 £27.09 -
% change year-on-year -29.86% - -

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 3,595 3,738 3,070
As % of all contract IT jobs advertised in the City of London 53.20% 53.33% 50.13%
Number of daily rates quoted 2,971 3,188 2,578
City of London median daily rate £525 £525 £488
Median daily rate % change year-on-year - +7.69% +2.63%
10th Percentile £398 £363 £325
90th Percentile £675 £700 £663
Central London median daily rate £525 £513 £475
% change year-on-year +2.44% +7.89% -
Number of hourly rates quoted 6 13 8
City of London median hourly rate £37.09 £21.50 £27.50
Median hourly rate % change year-on-year +72.51% -21.82% -1.72%
10th Percentile £18.32 £17.25 £16.90
90th Percentile £39.64 £44.60 £50.31
Central London median hourly rate £37.09 £21.50 £27.50
% change year-on-year +72.51% -21.82% -1.72%

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 18 February 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 18 February 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 0 81 £500 +17.65%
Moorgate -16 3 £475 -
JavaScript
Central London

For the 6 months to 18 February 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.

1 434 (50.29%) HTML
2 420 (48.67%) Agile Software Development
3 367 (42.53%) CSS
4 287 (33.26%) AngularJS
5 250 (28.97%) React
6 241 (27.93%) Node.js
7 232 (26.88%) TDD
8 219 (25.38%) HTML5
9 212 (24.57%) Java
10 178 (20.63%) Finance
11 169 (19.58%) C#
12 168 (19.47%) Git (software)
13 165 (19.12%) Front End Development
14 159 (18.42%) .NET
15 146 (16.92%) Redux
16 142 (16.45%) Microservices
17 138 (15.99%) SQL
18 133 (15.41%) BDD
19 131 (15.18%) MVC
19 131 (15.18%) Scrum
20 127 (14.72%) Amazon AWS
21 123 (14.25%) Test Automation
21 123 (14.25%) jQuery
22 122 (14.14%) Docker
23 116 (13.44%) REST
24 115 (13.33%) DevOps
25 107 (12.40%) Microsoft Azure
26 106 (12.28%) ES6
27 101 (11.70%) User Experience
28 96 (11.12%) Banking

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 49 (5.68%) Elasticsearch
2 38 (4.40%) Confluence
3 33 (3.82%) CMS
4 27 (3.13%) WordPress
5 22 (2.55%) Drupal
6 20 (2.32%) SharePoint
7 12 (1.39%) Gunicorn
8 11 (1.27%) Apache Spark
9 10 (1.16%) Adobe Experience Manager
10 9 (1.04%) Cloud Foundry
11 8 (0.93%) Apache
12 6 (0.70%) Tomcat
13 5 (0.58%) Sitecore CMS
14 4 (0.46%) EPiServer
15 3 (0.35%) SharePoint 2013
15 3 (0.35%) WebLogic
16 2 (0.23%) Apache Solr
16 2 (0.23%) JBoss
16 2 (0.23%) nginx
16 2 (0.23%) Oracle SOA Suite
Applications
1 5 (0.58%) Photoshop
2 4 (0.46%) InfoPath
3 3 (0.35%) Fireworks
4 2 (0.23%) Chatbot
5 1 (0.12%) Adobe Creative Suite
5 1 (0.12%) Adobe Illustrator
5 1 (0.12%) Microsoft Excel
5 1 (0.12%) Microsoft Office
5 1 (0.12%) OmniGraffle
Business Applications
1 19 (2.20%) Dynamics CRM
2 3 (0.35%) Remedy ITSM
3 1 (0.12%) Dynamics AX
3 1 (0.12%) Dynamics NAV
3 1 (0.12%) Eloqua
3 1 (0.12%) SAP Hybris
Cloud Services
1 127 (14.72%) Amazon AWS
2 107 (12.40%) Microsoft Azure
3 42 (4.87%) Serverless
4 33 (3.82%) GitHub
5 25 (2.90%) AWS Lambda
5 25 (2.90%) Heroku
6 19 (2.20%) Dynamics 365
7 17 (1.97%) Google Cloud Platform
8 16 (1.85%) Google Analytics
9 14 (1.62%) npm
10 13 (1.51%) Amazon EC2
11 10 (1.16%) Adobe Analytics
11 10 (1.16%) SaaS
12 9 (1.04%) Amazon S3
12 9 (1.04%) Datadog
13 8 (0.93%) Azure Functions
13 8 (0.93%) Office 365
13 8 (0.93%) PaaS
14 6 (0.70%) Amazon Kinesis
14 6 (0.70%) Cloud Computing
Communications & Networking
1 33 (3.82%) HTTP
2 23 (2.67%) FTP
2 23 (2.67%) SSL
3 22 (2.55%) TCP/IP
4 21 (2.43%) DNS
5 9 (1.04%) Internet
6 3 (0.35%) Intranet
7 2 (0.23%) HTTPS
7 2 (0.23%) SMTP
7 2 (0.23%) SSH
8 1 (0.12%) LAN
8 1 (0.12%) VPN
8 1 (0.12%) WAN
Database & Business Intelligence
1 92 (10.66%) SQL Server
2 91 (10.54%) MongoDB
3 63 (7.30%) NoSQL
4 47 (5.45%) MySQL
5 42 (4.87%) PostgreSQL
6 38 (4.40%) Relational Database
7 33 (3.82%) Big Data
8 29 (3.36%) Redis
9 24 (2.78%) Apache Cassandra
10 20 (2.32%) RDBMS
11 17 (1.97%) Hadoop
12 13 (1.51%) Blockchain
13 10 (1.16%) Amazon RDS
13 10 (1.16%) SQL Server Integration Services
13 10 (1.16%) SQL Server Reporting Services
14 9 (1.04%) CouchDB
15 6 (0.70%) Amazon DynamoDB
15 6 (0.70%) HBase
15 6 (0.70%) SQL Server 2008
15 6 (0.70%) SQL Server 2012
Development Applications
1 168 (19.47%) Git (software)
2 92 (10.66%) Jenkins
3 80 (9.27%) Selenium
4 76 (8.81%) JIRA
5 71 (8.23%) gulp
6 45 (5.21%) webpack
7 43 (4.98%) Mocha
8 42 (4.87%) Jasmine
9 38 (4.40%) Cucumber
10 36 (4.17%) Team Foundation Server
10 36 (4.17%) Visual Studio
10 36 (4.17%) Visual Studio Team System
11 33 (3.82%) GitLab
12 30 (3.48%) TeamCity
13 28 (3.24%) Gatling
13 28 (3.24%) Karma Test Runner
14 27 (3.13%) Gradle
15 26 (3.01%) Grunt
16 25 (2.90%) Octopus Deploy
17 21 (2.43%) Subversion
General
1 178 (20.63%) Finance
2 96 (11.12%) Banking
3 36 (4.17%) Front Office
4 33 (3.82%) Investment Banking
5 24 (2.78%) Retail
6 15 (1.74%) Publishing
7 9 (1.04%) Advertising
8 7 (0.81%) Law
8 7 (0.81%) Marketing
9 4 (0.46%) Games
10 3 (0.35%) Back Office
10 3 (0.35%) Financial Institution
10 3 (0.35%) Legal
10 3 (0.35%) Retail Banking
11 2 (0.23%) Manufacturing
12 1 (0.12%) Automotive
12 1 (0.12%) Billing
12 1 (0.12%) French Language
12 1 (0.12%) Multimedia
Job Titles
1 649 (75.20%) Developer
2 183 (21.21%) JavaScript Developer
3 158 (18.31%) Front End Developer (Client-Side Developer)
4 109 (12.63%) React Developer
5 106 (12.28%) Angular Developer
6 92 (10.66%) Full Stack Developer
7 88 (10.20%) Java Developer
8 72 (8.34%) Senior Developer
9 68 (7.88%) Node.js Developer
10 66 (7.65%) .NET Developer
11 47 (5.45%) C# Developer
12 27 (3.13%) UI Developer
13 26 (3.01%) Lead Developer
14 25 (2.90%) JavaScript Engineer
15 23 (2.67%) Agile Developer
15 23 (2.67%) HTML Developer
15 23 (2.67%) Software Developer
16 21 (2.43%) Architect
17 20 (2.32%) Python Developer
18 19 (2.20%) Analyst
Libraries, Frameworks & Software Standards
1 434 (50.29%) HTML
2 367 (42.53%) CSS
3 287 (33.26%) AngularJS
4 250 (28.97%) React
5 241 (27.93%) Node.js
6 219 (25.38%) HTML5
7 159 (18.42%) .NET
8 146 (16.92%) Redux
9 123 (14.25%) jQuery
10 116 (13.44%) REST
11 92 (10.66%) Sass
12 82 (9.50%) CSS3
12 82 (9.50%) Spring
12 82 (9.50%) Twitter Bootstrap
13 78 (9.04%) RESTful
14 65 (7.53%) ASP.NET
15 61 (7.07%) XML
16 60 (6.95%) Express
16 60 (6.95%) JSON
17 56 (6.49%) ASP.NET Web API
Miscellaneous
1 101 (11.70%) User Experience
2 73 (8.46%) Greenfield Project
3 44 (5.10%) Fintech
4 26 (3.01%) Analytical Skills
5 24 (2.78%) Mobile App
6 19 (2.20%) Data Structures
6 19 (2.20%) Fixed Income
6 19 (2.20%) Self-Motivation
7 15 (1.74%) Foreign Exchange (FX)
8 9 (1.04%) Algorithms
8 9 (1.04%) Tandem
9 7 (0.81%) N-Tier
9 7 (0.81%) W3C
10 6 (0.70%) Derivative
10 6 (0.70%) Hedge funds
11 5 (0.58%) Enterprise Software
11 5 (0.58%) Fat Client
11 5 (0.58%) Smartcard
11 5 (0.58%) Thin Client
11 5 (0.58%) Video\Live Streaming
Operating Systems
1 74 (8.57%) Linux
2 34 (3.94%) Unix
3 21 (2.43%) Windows
4 16 (1.85%) Apple iOS
5 15 (1.74%) Android
6 10 (1.16%) Windows Server
7 4 (0.46%) Red Hat Enterprise Linux
8 2 (0.23%) Ubuntu
9 1 (0.12%) Mac OS
9 1 (0.12%) VMS
9 1 (0.12%) Windows Server 2012
Processes & Methodologies
1 420 (48.67%) Agile Software Development
2 232 (26.88%) TDD
3 165 (19.12%) Front End Development
4 142 (16.45%) Microservices
5 133 (15.41%) BDD
6 131 (15.18%) MVC
6 131 (15.18%) Scrum
7 123 (14.25%) Test Automation
8 115 (13.33%) DevOps
9 86 (9.97%) Continuous Integration
10 81 (9.39%) Software Engineering
11 76 (8.81%) OO
12 71 (8.23%) Web Development
13 60 (6.95%) Kanban
14 59 (6.84%) Problem-Solving
15 57 (6.60%) Unit Testing
16 45 (5.21%) E-Commerce
17 44 (5.10%) Open Source
18 43 (4.98%) Continuous Delivery
19 42 (4.87%) Pair Programming
Programming Languages
1 212 (24.57%) Java
2 169 (19.58%) C#
3 138 (15.99%) SQL
4 106 (12.28%) ES6
5 93 (10.78%) Python
5 93 (10.78%) TypeScript
6 54 (6.26%) Java 8
7 46 (5.33%) PHP
8 28 (3.24%) Bash Shell
9 27 (3.13%) PowerShell
10 21 (2.43%) T-SQL
11 20 (2.32%) Ruby
12 18 (2.09%) ES7
12 18 (2.09%) Go
13 16 (1.85%) Scala
14 12 (1.39%) Shell Script
15 9 (1.04%) Apex Code
15 9 (1.04%) C++
15 9 (1.04%) JSX
15 9 (1.04%) PL/SQL
Qualifications
1 43 (4.98%) Degree
2 12 (1.39%) Computer Science Degree
2 12 (1.39%) Security Cleared
3 10 (1.16%) SC Cleared
4 5 (0.58%) ISTQB
5 4 (0.46%) Numerate Degree
6 3 (0.35%) TOGAF Certification
7 2 (0.23%) Master's Degree
8 1 (0.12%) AWS Certification
8 1 (0.12%) BPSS Clearance
8 1 (0.12%) CTC Cleared
8 1 (0.12%) ITIL Certification
8 1 (0.12%) PhD
8 1 (0.12%) SAFe Agilist
8 1 (0.12%) Sun Certification
Quality Assurance & Compliance
1 48 (5.56%) QA
2 8 (0.93%) Data Quality
3 4 (0.46%) Disclosure Scotland
3 4 (0.46%) Solvency II
3 4 (0.46%) WCAG
4 1 (0.12%) FedRAMP
4 1 (0.12%) FISMA
4 1 (0.12%) GDPR
4 1 (0.12%) HIPAA
4 1 (0.12%) PCI DSS
System Software
1 122 (14.14%) Docker
2 4 (0.46%) Active Directory
3 3 (0.35%) VMware Infrastructure
4 2 (0.23%) HDFS
5 1 (0.12%) Apache Flume
5 1 (0.12%) Apache ZooKeeper
5 1 (0.12%) etcd
Systems Management
1 44 (5.10%) Kubernetes
2 25 (2.90%) Ansible
3 23 (2.67%) Docker Swarm
4 18 (2.09%) Terraform
5 17 (1.97%) Opscode Chef
6 15 (1.74%) Puppet
7 9 (1.04%) Kibana
8 7 (0.81%) logstash
9 5 (0.58%) systemd
10 4 (0.46%) Grafana
10 4 (0.46%) Marathon
10 4 (0.46%) Mesos
11 3 (0.35%) Capistrano
11 3 (0.35%) Consul
11 3 (0.35%) HP ALM
11 3 (0.35%) Single Sign-On
11 3 (0.35%) vRealize
11 3 (0.35%) vRealize Orchestrator
12 2 (0.23%) HP Quality Center
13 1 (0.12%) Prometheus
Vendors
1 67 (7.76%) Microsoft
2 37 (4.29%) Google
3 23 (2.67%) Splunk
4 18 (2.09%) Oracle
5 15 (1.74%) Adobe
6 12 (1.39%) Salesforce.com
7 7 (0.81%) Cadence
8 6 (0.70%) ION Trading
8 6 (0.70%) Sonatype
9 5 (0.58%) Bloomberg
9 5 (0.58%) Citrix
9 5 (0.58%) Cypress Semiconductor
9 5 (0.58%) New Relic
9 5 (0.58%) Nintex
9 5 (0.58%) Perfecto Mobile
9 5 (0.58%) Sitecore
10 4 (0.46%) SAP
10 4 (0.46%) ServiceNow
10 4 (0.46%) Tableau
10 4 (0.46%) Telerik