Period
to 20 January 2019

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 20 January 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)
6 months to
20 Jan 2019
Same period 2018 Same period 2017
Rank 5 4 4
Rank change year-on-year -1 0 +6
Contract jobs citing JavaScript 363 373 399
As % of all contract IT jobs advertised in Leeds 15.63% 16.96% 16.66%
As % of the Programming Languages category 33.86% 35.26% 34.10%
Number of daily rates quoted 260 313 292
Leeds median daily rate £400 £410 £400
Median daily rate % change year-on-year -2.44% +2.50% -5.88%
10th Percentile £313 £300 £291
90th Percentile £525 £538 £538
West Yorkshire median daily rate £393 £400 £390
% change year-on-year -1.88% +2.56% -2.50%
Number of hourly rates quoted 0 0 6
Leeds median hourly rate - - £18.00
West Yorkshire median hourly rate - - £18.00

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 Leeds with a requirement for coding skills.

All Programming Languages
Leeds
Contract vacancies with a requirement for coding skills 1,072 1,058 1,170
As % of all contract IT jobs advertised in Leeds 46.17% 48.11% 48.85%
Number of daily rates quoted 772 807 816
Leeds median daily rate £415 £400 £400
Median daily rate % change year-on-year +3.75% - +3.23%
10th Percentile £313 £281 £294
90th Percentile £538 £538 £538
West Yorkshire median daily rate £405 £400 £400
% change year-on-year +1.25% - +6.67%
Number of hourly rates quoted 24 14 12
Leeds median hourly rate £20.25 £40.00 £13.50
Median hourly rate % change year-on-year -49.39% +196.30% -22.86%
10th Percentile £15.33 £39.30 £10.89
90th Percentile £40.32 £40.70 £26.25
West Yorkshire median hourly rate £20.25 £40.00 £13.50
% change year-on-year -49.39% +196.30% -22.86%

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 20 January 2019.

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 20 January 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 Leeds region with a requirement for JavaScript.

1 154 (42.42%) Agile Software Development
2 150 (41.32%) CSS
3 144 (39.67%) HTML
4 122 (33.61%) React
5 107 (29.48%) AngularJS
6 102 (28.10%) Node.js
7 98 (27.00%) .NET
8 91 (25.07%) C#
9 87 (23.97%) Microservices
10 85 (23.42%) jQuery
11 82 (22.59%) Java
11 82 (22.59%) SQL
12 81 (22.31%) TDD
13 72 (19.83%) Test Automation
14 69 (19.01%) Git (software)
15 66 (18.18%) Software Engineering
16 62 (17.08%) SQL Server
16 62 (17.08%) MVC
17 56 (15.43%) MySQL
17 56 (15.43%) E-Commerce
17 56 (15.43%) REST
18 55 (15.15%) PHP
18 55 (15.15%) Linux
19 52 (14.33%) Vue.js
20 51 (14.05%) ASP.NET
21 50 (13.77%) JIRA
21 50 (13.77%) Front End Development
22 47 (12.95%) User Experience
23 46 (12.67%) Confluence
24 44 (12.12%) HTML5

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 46 (12.67%) Confluence
2 32 (8.82%) CMS
3 16 (4.41%) Sitecore CMS
4 7 (1.93%) WordPress
5 4 (1.10%) Kentico
6 3 (0.83%) Adobe Experience Manager
6 3 (0.83%) Apache Solr
7 2 (0.55%) Apache
7 2 (0.55%) IIS
7 2 (0.55%) Oracle SOA Suite
7 2 (0.55%) Umbraco
8 1 (0.28%) Elasticsearch
8 1 (0.28%) Ethereum
8 1 (0.28%) JBoss
8 1 (0.28%) nginx
8 1 (0.28%) WebLogic
Applications
1 3 (0.83%) Adobe Creative Suite
2 1 (0.28%) InVision
Business Applications
1 12 (3.31%) Magento
2 5 (1.38%) Payment Gateway
3 3 (0.83%) Shopify
4 2 (0.55%) OpenCart
5 1 (0.28%) Dynamics CRM
5 1 (0.28%) Workday HCM
Cloud Services
1 33 (9.09%) Amazon AWS
2 29 (7.99%) Slack
3 20 (5.51%) npm
4 16 (4.41%) Amazon EC2
5 13 (3.58%) Microsoft Azure
6 9 (2.48%) GitHub
7 6 (1.65%) Amazon S3
7 6 (1.65%) Google Analytics
7 6 (1.65%) Virtual Private Cloud
8 4 (1.10%) Amazon ELB
8 4 (1.10%) Google Tag Manager
8 4 (1.10%) Route 53
9 3 (0.83%) Sage Pay
9 3 (0.83%) Serverless
10 2 (0.55%) Amazon CloudWatch
10 2 (0.55%) AWS CloudTrail
10 2 (0.55%) AWS Lambda
10 2 (0.55%) SaaS
11 1 (0.28%) Amazon SageMaker
11 1 (0.28%) PaaS
Communications & Networking
1 7 (1.93%) HTTP
2 3 (0.83%) Internet
3 2 (0.55%) SSL
4 1 (0.28%) TCP/IP
Database & Business Intelligence
1 62 (17.08%) SQL Server
2 56 (15.43%) MySQL
3 32 (8.82%) MongoDB
4 27 (7.44%) NoSQL
5 25 (6.89%) PostgreSQL
6 12 (3.31%) Amazon RDS
7 8 (2.20%) Redis
8 6 (1.65%) Apache Cassandra
9 3 (0.83%) Big Data
9 3 (0.83%) SQL Server Integration Services
9 3 (0.83%) SQL Server Reporting Services
10 2 (0.55%) Amazon Redshift
10 2 (0.55%) Data Lake
10 2 (0.55%) Data Warehouse
10 2 (0.55%) DB2
10 2 (0.55%) Pentaho
10 2 (0.55%) Relational Database
11 1 (0.28%) Amazon Athena
11 1 (0.28%) Amazon Aurora
11 1 (0.28%) Blockchain
Development Applications
1 69 (19.01%) Git (software)
2 50 (13.77%) JIRA
3 32 (8.82%) webpack
4 30 (8.26%) gulp
5 27 (7.44%) Cucumber
6 23 (6.34%) Selenium
7 19 (5.23%) Babel
7 19 (5.23%) Jenkins
8 17 (4.68%) IntelliJ
9 12 (3.31%) Vagrant
10 11 (3.03%) PHPUnit
11 10 (2.75%) Grunt
12 9 (2.48%) Jasmine
12 9 (2.48%) JMeter
13 8 (2.20%) GitLab
13 8 (2.20%) Maven
13 8 (2.20%) SonarQube
13 8 (2.20%) WebDriver
14 6 (1.65%) Artifactory
15 5 (1.38%) Mocha
General
1 20 (5.51%) Banking
2 16 (4.41%) Finance
3 10 (2.75%) Games
4 6 (1.65%) Marketing
5 4 (1.10%) Retail
6 3 (0.83%) Telecoms
7 2 (0.55%) Advertising
7 2 (0.55%) Back Office
8 1 (0.28%) Automotive
8 1 (0.28%) Law
8 1 (0.28%) Manufacturing
Job Titles
1 284 (78.24%) Developer
2 67 (18.46%) JavaScript Developer
3 54 (14.88%) .NET Developer
4 39 (10.74%) Front End Developer (Client-Side Developer)
5 35 (9.64%) Angular Developer
6 34 (9.37%) React Developer
7 30 (8.26%) C# Developer
8 27 (7.44%) C# .NET Developer
9 26 (7.16%) Java Developer
9 26 (7.16%) PHP Developer
10 24 (6.61%) UI Developer
11 23 (6.34%) Software Engineer
12 20 (5.51%) HTML Developer
12 20 (5.51%) Tester
13 19 (5.23%) SQL Developer
14 18 (4.96%) Full Stack Developer
15 17 (4.68%) HTML CSS Developer
16 16 (4.41%) Senior Developer
17 15 (4.13%) Software Developer
18 13 (3.58%) Automation Tester
Libraries, Frameworks & Software Standards
1 150 (41.32%) CSS
2 144 (39.67%) HTML
3 122 (33.61%) React
4 107 (29.48%) AngularJS
5 102 (28.10%) Node.js
6 98 (27.00%) .NET
7 85 (23.42%) jQuery
8 56 (15.43%) REST
9 52 (14.33%) Vue.js
10 51 (14.05%) ASP.NET
11 44 (12.12%) HTML5
12 39 (10.74%) ASP.NET Web API
12 39 (10.74%) CSS3
12 39 (10.74%) Redux
13 38 (10.47%) Sass
14 36 (9.92%) ASP.NET MVC
15 25 (6.89%) JSON
15 25 (6.89%) Twitter Bootstrap
16 22 (6.06%) DOM
17 21 (5.79%) Web Services
Miscellaneous
1 47 (12.95%) User Experience
2 17 (4.68%) Greenfield Project
3 16 (4.41%) Self-Motivation
4 9 (2.48%) Mobile App
5 7 (1.93%) Fat Client
5 7 (1.93%) Thin Client
6 6 (1.65%) Analytical Skills
7 4 (1.10%) Enterprise Software
7 4 (1.10%) Linux Command Line
8 3 (0.83%) Data Centre
8 3 (0.83%) W3C
9 1 (0.28%) CMDB
9 1 (0.28%) Fintech
9 1 (0.28%) iPhone
9 1 (0.28%) Management Information System
9 1 (0.28%) Virtual Team
Operating Systems
1 55 (15.15%) Linux
2 28 (7.71%) Red Hat Enterprise Linux
3 15 (4.13%) Apple iOS
4 14 (3.86%) Android
5 10 (2.75%) VMS
6 5 (1.38%) Unix
7 4 (1.10%) CentOS
7 4 (1.10%) Windows
8 2 (0.55%) AIX
Processes & Methodologies
1 154 (42.42%) Agile Software Development
2 87 (23.97%) Microservices
3 81 (22.31%) TDD
4 72 (19.83%) Test Automation
5 66 (18.18%) Software Engineering
6 62 (17.08%) MVC
7 56 (15.43%) E-Commerce
8 50 (13.77%) Front End Development
9 40 (11.02%) Continuous Integration
10 38 (10.47%) Scrum
11 34 (9.37%) SDLC
12 33 (9.09%) BDD
13 29 (7.99%) DevOps
14 27 (7.44%) Continuous Improvement
15 26 (7.16%) Web Development
16 25 (6.89%) Non-Functional Testing
17 24 (6.61%) Mentoring
18 22 (6.06%) Coaching
18 22 (6.06%) Unit Testing
19 20 (5.51%) Pair Programming
Programming Languages
1 91 (25.07%) C#
2 82 (22.59%) Java
2 82 (22.59%) SQL
3 55 (15.15%) PHP
4 22 (6.06%) T-SQL
5 18 (4.96%) Python
6 17 (4.68%) Go
7 16 (4.41%) TypeScript
8 13 (3.58%) ES6
8 13 (3.58%) PHP 7
9 10 (2.75%) Java 8
10 9 (2.48%) Ruby
10 9 (2.48%) Scala
11 6 (1.65%) Groovy
12 5 (1.38%) ES7
13 4 (1.10%) Apex Code
13 4 (1.10%) Clojure
14 3 (0.83%) C
14 3 (0.83%) SOQL
15 2 (0.55%) Apple Swift
Qualifications
1 14 (3.86%) BPSS Clearance
2 11 (3.03%) Security Cleared
3 9 (2.48%) SC Cleared
4 6 (1.65%) Degree
5 2 (0.55%) BC Cleared
5 2 (0.55%) DBS Check
5 2 (0.55%) ISEB
5 2 (0.55%) ISTQB
6 1 (0.28%) AWS Certification
6 1 (0.28%) Computer Science Degree
6 1 (0.28%) Master's Degree
Quality Assurance & Compliance
1 5 (1.38%) QA
2 4 (1.10%) Disclosure Scotland
3 3 (0.83%) WAI
3 3 (0.83%) WCAG
4 2 (0.55%) Data Quality
5 1 (0.28%) GDPR
System Software
1 33 (9.09%) Docker
2 1 (0.28%) Active Directory
Systems Management
1 10 (2.75%) Prometheus
2 8 (2.20%) Grafana
2 8 (2.20%) Puppet
3 7 (1.93%) Kubernetes
3 7 (1.93%) Terraform
4 6 (1.65%) Opscode Chef
5 5 (1.38%) Packer
6 4 (1.10%) Matomo
6 4 (1.10%) Rancher
7 3 (0.83%) Kibana
8 2 (0.55%) Graphite
9 1 (0.28%) Ansible
9 1 (0.28%) Graylog
9 1 (0.28%) Single Sign-On
Vendors
1 18 (4.96%) Microsoft
1 18 (4.96%) Sitecore
2 12 (3.31%) Zend
3 7 (1.93%) Google
4 6 (1.65%) Salesforce.com
5 5 (1.38%) Red Hat
6 4 (1.10%) Adobe
6 4 (1.10%) Black Duck
7 3 (0.83%) Oracle
7 3 (0.83%) WooCommerce
8 2 (0.55%) ServiceNow
8 2 (0.55%) Splunk
8 2 (0.55%) Telerik
9 1 (0.28%) PayPal
9 1 (0.28%) Perforce
9 1 (0.28%) Sage
9 1 (0.28%) Trustwave
9 1 (0.28%) Workday
9 1 (0.28%) WorldPay
9 1 (0.28%) Xamarin