Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in Leeds 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 21 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)
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 4 4 10
Rank change year-on-year 0 +6 +4
Contract jobs citing JavaScript 379 456 401
As % of all contract IT jobs advertised in Leeds 16.75% 17.55% 12.39%
As % of the Programming Languages category 35.03% 35.35% 30.24%
Number of daily rates quoted 334 346 308
Leeds median daily rate £400 £400 £375
Median daily rate % change year-on-year +0.06% +6.67% +15.38%
10th Percentile £305 £283 £300
90th Percentile £538 £516 £558
West Yorkshire median daily rate £400 £400 £350
% change year-on-year - +14.29% +7.69%
Number of hourly rates quoted 0 3 7
Leeds median hourly rate - £13.50 £40.00
Median hourly rate % change year-on-year - -66.25% -
West Yorkshire median hourly rate - £13.50 £40.00
% change year-on-year - -66.25% -

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 Leeds with a requirement for coding skills.

All Programming Languages
Leeds
Contract vacancies with a requirement for coding skills 1082 1290 1326
As % of all contract IT jobs advertised in Leeds 47.81% 49.63% 40.98%
Number of daily rates quoted 839 909 943
Leeds median daily rate £400 £400 £375
Median daily rate % change year-on-year - +6.67% +15.38%
10th Percentile £300 £295 £275
90th Percentile £525 £538 £525
West Yorkshire median daily rate £400 £400 £350
% change year-on-year - +14.29% +7.69%
Number of hourly rates quoted 7 7 14
Leeds median hourly rate £40.00 £13.50 £18.75
Median hourly rate % change year-on-year +196.30% -28.00% -42.31%
10th Percentile £39.60 £12.90 £14.13
90th Percentile £40.40 £32.50 £43.50
West Yorkshire median hourly rate £40.00 £13.50 £19.50
% change year-on-year +196.30% -30.77% -18.75%

JavaScript
Job Vacancy Trend in Leeds

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

Job vacancy trend for JavaScript in Leeds

JavaScript
Contractor Daily Rate Trend in Leeds

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

Contractor daily rate trend for JavaScript in Leeds

JavaScript
Contractor Daily Rate Histogram in Leeds

The daily rate distribution of IT jobs citing JavaScript in Leeds over the 6 months to 21 November 2017.

Contractor daily rate histogram for JavaScript in Leeds

JavaScript
Contractor Hourly Rate Trend in Leeds

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

Contractor hourly rate trend for JavaScript in Leeds

For the 6 months to 21 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 Leeds region with a requirement for JavaScript.

1 219 (57.78%) Agile Software Development
2 208 (54.88%) HTML
3 179 (47.23%) CSS
4 138 (36.41%) Java
5 127 (33.51%) Git (software)
6 118 (31.13%) AngularJS
7 111 (29.29%) Node.js
8 109 (28.76%) React
9 106 (27.97%) TDD
10 98 (25.86%) HTML5
11 90 (23.75%) CSS3
12 87 (22.96%) Test Automation
13 86 (22.69%) SQL
14 73 (19.26%) Front End Development
15 70 (18.47%) PHP
16 68 (17.94%) MVC
17 66 (17.41%) Software Engineering
17 66 (17.41%) OO
17 66 (17.41%) BDD
18 65 (17.15%) .NET
19 64 (16.89%) Spring
20 60 (15.83%) NoSQL
21 58 (15.30%) MongoDB
21 58 (15.30%) Jenkins
22 57 (15.04%) Continuous Integration
22 57 (15.04%) Scrum
23 53 (13.98%) Microservices
24 52 (13.72%) C#
25 50 (13.19%) MySQL
25 50 (13.19%) REST

JavaScript
Co-occurring IT Skills in Leeds 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 29 (7.65%) Confluence
2 11 (2.90%) CMS
3 6 (1.58%) SharePoint
3 6 (1.58%) SharePoint 2013
3 6 (1.58%) Sitecore CMS
3 6 (1.58%) Tomcat
3 6 (1.58%) WordPress
4 5 (1.32%) Jupyter
4 5 (1.32%) Umbraco
5 4 (1.06%) Adobe Experience Manager
5 4 (1.06%) Drupal
6 3 (0.79%) Apache
6 3 (0.79%) Apache Spark
6 3 (0.79%) Cloud Foundry
6 3 (0.79%) GlassFish
6 3 (0.79%) JBoss
6 3 (0.79%) SAS
7 2 (0.53%) WebSphere
8 1 (0.26%) EPiServer
8 1 (0.26%) Joomla!
Applications
1 7 (1.85%) Photoshop
2 5 (1.32%) InfoPath
3 4 (1.06%) Adobe Creative Suite
4 2 (0.53%) Adobe After Effects
4 2 (0.53%) Adobe Illustrator
5 1 (0.26%) InDesign
Business Applications
1 4 (1.06%) Magento
2 1 (0.26%) Dynamics CRM
Cloud Services
1 22 (5.80%) Slack
2 14 (3.69%) Amazon AWS
3 6 (1.58%) GitHub
3 6 (1.58%) Microsoft Azure
4 4 (1.06%) Heroku
5 2 (0.53%) npm
6 1 (0.26%) CloudBees
6 1 (0.26%) IaaS
6 1 (0.26%) OpenShift
6 1 (0.26%) PaaS
Communications & Networking
1 2 (0.53%) Broadband
1 2 (0.53%) Network Security
2 1 (0.26%) Internet
Database & Business Intelligence
1 60 (15.83%) NoSQL
2 58 (15.30%) MongoDB
3 50 (13.19%) MySQL
4 35 (9.23%) SQL Server
5 27 (7.12%) PostgreSQL
6 20 (5.28%) Apache Cassandra
7 13 (3.43%) Big Data
8 9 (2.37%) SQL Server 2008
8 9 (2.37%) SQL Server 2012
9 4 (1.06%) Relational Database
10 3 (0.79%) Hadoop
10 3 (0.79%) Redis
11 1 (0.26%) Amazon DynamoDB
11 1 (0.26%) Apache Hive
11 1 (0.26%) DB2
11 1 (0.26%) Oracle Database
11 1 (0.26%) RDBMS
11 1 (0.26%) Riak
Development Applications
1 127 (33.51%) Git (software)
2 58 (15.30%) Jenkins
3 45 (11.87%) JIRA
4 38 (10.03%) Subversion
5 35 (9.23%) Maven
6 34 (8.97%) Mercurial
7 33 (8.71%) Cucumber
8 28 (7.39%) Jasmine
9 26 (6.86%) gulp
10 21 (5.54%) Grunt
10 21 (5.54%) JUnit
11 18 (4.75%) Selenium
12 16 (4.22%) WebDriver
13 12 (3.17%) Hudson
13 12 (3.17%) Karma Test Runner
14 10 (2.64%) Octopus Deploy
15 8 (2.11%) Gradle
16 6 (1.58%) AppVeyor
16 6 (1.58%) CircleCI
16 6 (1.58%) PHPUnit
General
1 24 (6.33%) Finance
2 12 (3.17%) Marketing
3 10 (2.64%) Games
4 8 (2.11%) Banking
5 7 (1.85%) Retail Banking
6 4 (1.06%) Telecoms
7 2 (0.53%) Advertising
8 1 (0.26%) Financial Institution
Job Titles
1 298 (78.63%) Developer
2 103 (27.18%) JavaScript Developer
3 65 (17.15%) Java Developer
4 61 (16.09%) Front End Developer (Client-Side Developer)
5 35 (9.23%) .NET Developer
6 33 (8.71%) HTML Developer
6 33 (8.71%) PHP Developer
7 29 (7.65%) HTML CSS Developer
8 25 (6.60%) Software Engineer
9 24 (6.33%) Node.js Developer
10 21 (5.54%) Senior Developer
11 18 (4.75%) Angular Developer
11 18 (4.75%) Tester
12 17 (4.49%) Agile Developer
13 16 (4.22%) UI Developer
14 15 (3.96%) C# Developer
14 15 (3.96%) Java Engineer
15 14 (3.69%) C# .NET Developer
15 14 (3.69%) Java Software Engineer
16 13 (3.43%) Lead Developer
Libraries, Frameworks & Software Standards
1 208 (54.88%) HTML
2 179 (47.23%) CSS
3 118 (31.13%) AngularJS
4 111 (29.29%) Node.js
5 109 (28.76%) React
6 98 (25.86%) HTML5
7 90 (23.75%) CSS3
8 65 (17.15%) .NET
9 64 (16.89%) Spring
10 50 (13.19%) REST
11 46 (12.14%) Hibernate
12 44 (11.61%) ASP.NET
13 40 (10.55%) jQuery
14 37 (9.76%) Sass
15 33 (8.71%) ASP.NET MVC
16 26 (6.86%) ASP.NET Web API
17 23 (6.07%) Twitter Bootstrap
17 23 (6.07%) XML
18 21 (5.54%) JSON
18 21 (5.54%) RESTful
Miscellaneous
1 48 (12.66%) User Experience
2 26 (6.86%) Algorithms
2 26 (6.86%) Data Structures
3 18 (4.75%) Analytical Skills
4 14 (3.69%) Enterprise Software
5 12 (3.17%) Greenfield Project
6 6 (1.58%) Mobile App
7 2 (0.53%) Computer Science
7 2 (0.53%) Linux Command Line
7 2 (0.53%) Private Cloud
7 2 (0.53%) Video on Demand
8 1 (0.26%) AS400
8 1 (0.26%) Chromecast
8 1 (0.26%) IPTV
8 1 (0.26%) Mobile Banking
8 1 (0.26%) Over-the-Top Content
Operating Systems
1 37 (9.76%) Linux
2 27 (7.12%) Red Hat Enterprise Linux
3 12 (3.17%) Unix
4 8 (2.11%) Android
4 8 (2.11%) Apple iOS
5 3 (0.79%) CentOS
5 3 (0.79%) Windows
6 2 (0.53%) AIX
6 2 (0.53%) Solaris
6 2 (0.53%) Windows Server
7 1 (0.26%) Embedded Linux
Processes & Methodologies
1 219 (57.78%) Agile Software Development
2 106 (27.97%) TDD
3 87 (22.96%) Test Automation
4 73 (19.26%) Front End Development
5 68 (17.94%) MVC
6 66 (17.41%) BDD
6 66 (17.41%) OO
6 66 (17.41%) Software Engineering
7 57 (15.04%) Continuous Integration
7 57 (15.04%) Scrum
8 53 (13.98%) Microservices
9 36 (9.50%) Open Source
10 35 (9.23%) Kanban
11 33 (8.71%) Web Development
12 27 (7.12%) SDLC
13 24 (6.33%) Mentoring
13 24 (6.33%) SFIA
14 21 (5.54%) Pair Programming
15 20 (5.28%) Continuous Delivery
15 20 (5.28%) DevOps
Programming Languages
1 138 (36.41%) Java
2 86 (22.69%) SQL
3 70 (18.47%) PHP
4 52 (13.72%) C#
5 46 (12.14%) Python
6 14 (3.69%) Bash Shell
7 11 (2.90%) T-SQL
8 10 (2.64%) Scala
9 9 (2.37%) Ruby
9 9 (2.37%) TypeScript
10 8 (2.11%) ES6
11 5 (1.32%) C
11 5 (1.32%) PowerShell
12 4 (1.06%) C++
12 4 (1.06%) PHP 5
12 4 (1.06%) PHP 7
13 3 (0.79%) Prolog
14 2 (0.53%) Elixir
15 1 (0.26%) Apple Swift
15 1 (0.26%) Go
Qualifications
1 13 (3.43%) Degree
2 8 (2.11%) BPSS Clearance
3 2 (0.53%) Security Cleared
4 1 (0.26%) Computer Science Degree
4 1 (0.26%) SC Cleared
Quality Assurance & Compliance
1 5 (1.32%) QA
System Software
1 28 (7.39%) Docker
2 7 (1.85%) VMware NSX
3 4 (1.06%) VMware Infrastructure
4 1 (0.26%) vSphere
Systems Management
1 19 (5.01%) Puppet
2 14 (3.69%) Opscode Chef
3 11 (2.90%) Ansible
4 8 (2.11%) vRealize
5 7 (1.85%) vCenter Server
6 4 (1.06%) Grafana
7 3 (0.79%) Graphite
7 3 (0.79%) Kubernetes
7 3 (0.79%) Opsview
8 1 (0.26%) Cobbler
8 1 (0.26%) Graylog
8 1 (0.26%) Terraform
Vendors
1 17 (4.49%) Red Hat
2 16 (4.22%) Microsoft
3 10 (2.64%) Sitecore
4 8 (2.11%) Splunk
4 8 (2.11%) VMware
5 7 (1.85%) Adobe
5 7 (1.85%) Oracle
5 7 (1.85%) Xamarin
6 4 (1.06%) Google
6 4 (1.06%) HP
7 3 (0.79%) New Relic
8 2 (0.53%) IBM
8 2 (0.53%) Sun
9 1 (0.26%) MuleSoft
9 1 (0.26%) Zend