Period
to 20 February 2018

The following table provides summary statistics for contract job vacancies advertised in Leeds with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 20 February 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.

JSON
6 months to
20 Feb 2018
Same period 2017 Same period 2016
Rank 108 55 99
Rank change year-on-year -53 +44 -10
Contract jobs citing JSON 30 84 54
As % of all contract IT jobs advertised in Leeds 1.27% 3.75% 1.82%
As % of the Libraries, Frameworks & Software Standards category 3.54% 9.96% 5.16%
Number of daily rates quoted 25 51 46
Leeds median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.56% - +38.46%
10th Percentile £375 £325 £310
90th Percentile £545 £675 £663
West Yorkshire median daily rate £443 £450 £450
% change year-on-year -1.67% - +38.46%
Number of hourly rates quoted 0 0 0
Leeds median hourly rate - - -
West Yorkshire median hourly rate - - -

JSON is in the Software Libraries and Frameworks 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 technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Leeds
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 848 843 1,047
As % of all contract IT jobs advertised in Leeds 35.77% 37.60% 35.34%
Number of daily rates quoted 644 575 724
Leeds median daily rate £400 £400 £400
10th Percentile £275 £300 £285
90th Percentile £534 £538 £560
West Yorkshire median daily rate £400 £400 £382
% change year-on-year - +4.64% +9.21%
Number of hourly rates quoted 1 4 6
Leeds median hourly rate £42.00 £22.50 £10.70
Median hourly rate % change year-on-year +86.67% +110.28% -78.60%
10th Percentile £41.00 £15.08 £10.20
90th Percentile £43.00 £26.25 £45.38
West Yorkshire median hourly rate £42.00 £22.50 £10.20
% change year-on-year +86.67% +120.59% -74.50%

JSON
Job Vacancy Trend in Leeds

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

Job vacancy trend for JSON in Leeds

JSON
Contractor Daily Rate Trend in Leeds

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

Contractor daily rate trend for JSON in Leeds

JSON
Contractor Daily Rate Histogram in Leeds

The daily rate distribution of IT jobs citing JSON in Leeds over the 6 months to 20 February 2018.

Contractor daily rate histogram for JSON in Leeds

For the 6 months to 20 February 2018, IT contractor jobs citing JSON 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 JSON.

1 24 (80.00%) Agile Software Development
2 21 (70.00%) Java
2 21 (70.00%) JavaScript
3 16 (53.33%) Git (software)
4 15 (50.00%) Spring
5 12 (40.00%) XML
5 12 (40.00%) Puppet
5 12 (40.00%) Microservices
6 11 (36.67%) DevOps
6 11 (36.67%) Maven
7 10 (33.33%) HTML
7 10 (33.33%) CSS
7 10 (33.33%) REST
8 9 (30.00%) MongoDB
8 9 (30.00%) Test Automation
8 9 (30.00%) SOAP
8 9 (30.00%) Web Services
8 9 (30.00%) Scrum
8 9 (30.00%) Docker
8 9 (30.00%) Jenkins
9 8 (26.67%) Kafka
9 8 (26.67%) AngularJS
9 8 (26.67%) React
9 8 (26.67%) Node.js
10 7 (23.33%) Open Source
10 7 (23.33%) RESTful
10 7 (23.33%) JIRA
10 7 (23.33%) Software Engineering
10 7 (23.33%) Linux
11 6 (20.00%) Python

JSON
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 6 (20.00%) Confluence
2 4 (13.33%) Apache
3 3 (10.00%) Cloud Foundry
4 2 (6.67%) SharePoint
5 1 (3.33%) Jupyter
5 1 (3.33%) Oracle SOA Suite
5 1 (3.33%) Tomcat
Cloud Services
1 6 (20.00%) Amazon AWS
2 5 (16.67%) Microsoft Azure
3 4 (13.33%) GitHub
4 3 (10.00%) CloudBees
4 3 (10.00%) IaaS
4 3 (10.00%) OpenShift
4 3 (10.00%) PaaS
5 2 (6.67%) Heroku
6 1 (3.33%) Slack
Communications & Networking
1 1 (3.33%) HTTP
Database & Business Intelligence
1 9 (30.00%) MongoDB
2 5 (16.67%) NoSQL
3 4 (13.33%) Relational Database
3 4 (13.33%) SQL Server
4 3 (10.00%) Apache Hive
4 3 (10.00%) MySQL
4 3 (10.00%) SQL Server 2014
5 2 (6.67%) Big Data
5 2 (6.67%) RDBMS
5 2 (6.67%) SQL Server 2008
5 2 (6.67%) SQL Server 2012
6 1 (3.33%) PostgreSQL
6 1 (3.33%) Riak
6 1 (3.33%) SQL Server 2016
6 1 (3.33%) SQL Server Integration Services
Development Applications
1 16 (53.33%) Git (software)
2 11 (36.67%) Maven
3 9 (30.00%) Jenkins
4 7 (23.33%) JIRA
5 6 (20.00%) Gradle
5 6 (20.00%) SonarQube
6 4 (13.33%) IntelliJ
7 3 (10.00%) Artifactory
7 3 (10.00%) git-flow
7 3 (10.00%) JUnit
7 3 (10.00%) Subversion
8 2 (6.67%) Eclipse
8 2 (6.67%) Karma Test Runner
8 2 (6.67%) Octopus Deploy
8 2 (6.67%) Selenium
8 2 (6.67%) TeamCity
8 2 (6.67%) WebDriver
8 2 (6.67%) webpack
9 1 (3.33%) Cucumber
9 1 (3.33%) Mockito
General
1 5 (16.67%) Banking
2 4 (13.33%) Retail Banking
3 2 (6.67%) Finance
4 1 (3.33%) Games
Job Titles
1 19 (63.33%) Developer
2 7 (23.33%) Java Developer
3 5 (16.67%) Architect
3 5 (16.67%) Senior Developer
4 3 (10.00%) Android Developer
4 3 (10.00%) Java Engineer
4 3 (10.00%) Java Software Engineer
4 3 (10.00%) Scala Developer
4 3 (10.00%) Senior Java Developer
4 3 (10.00%) Software Engineer
5 2 (6.67%) .NET Developer
5 2 (6.67%) Digital Architect
5 2 (6.67%) Java Architect
5 2 (6.67%) React Developer
5 2 (6.67%) Senior .NET Developer
5 2 (6.67%) Solutions Architect
5 2 (6.67%) UI Architect
6 1 (3.33%) Java Software Developer
6 1 (3.33%) JavaScript Developer
6 1 (3.33%) Senior Java Software Developer
Libraries, Frameworks & Software Standards
1 15 (50.00%) Spring
2 12 (40.00%) XML
3 10 (33.33%) CSS
3 10 (33.33%) HTML
3 10 (33.33%) REST
4 9 (30.00%) SOAP
4 9 (30.00%) Web Services
5 8 (26.67%) AngularJS
5 8 (26.67%) Kafka
5 8 (26.67%) Node.js
5 8 (26.67%) React
6 7 (23.33%) RESTful
7 5 (16.67%) ActiveMQ
7 5 (16.67%) Elastic Stack
7 5 (16.67%) Play Framework
7 5 (16.67%) RabbitMQ
8 4 (13.33%) .NET
8 4 (13.33%) J2EE
8 4 (13.33%) Lucene
8 4 (13.33%) Spring Boot
Miscellaneous
1 5 (16.67%) Mobile App
2 3 (10.00%) Greenfield Project
2 3 (10.00%) User Experience
3 2 (6.67%) Enterprise Software
3 2 (6.67%) N-Tier
Operating Systems
1 7 (23.33%) Linux
2 5 (16.67%) Android
3 2 (6.67%) Red Hat Enterprise Linux
4 1 (3.33%) Apple iOS
4 1 (3.33%) Unix
4 1 (3.33%) Windows
Processes & Methodologies
1 24 (80.00%) Agile Software Development
2 12 (40.00%) Microservices
3 11 (36.67%) DevOps
4 9 (30.00%) Scrum
4 9 (30.00%) Test Automation
5 7 (23.33%) Open Source
5 7 (23.33%) Software Engineering
6 6 (20.00%) TDD
7 5 (16.67%) BDD
8 4 (13.33%) Android Development
8 4 (13.33%) MVC
8 4 (13.33%) OO
8 4 (13.33%) Unit Testing
9 3 (10.00%) ATDD
9 3 (10.00%) Kanban
9 3 (10.00%) Mobile Development
9 3 (10.00%) Software Delivery
9 3 (10.00%) TOGAF
10 2 (6.67%) Continuous Integration
10 2 (6.67%) Security Testing
Programming Languages
1 21 (70.00%) Java
1 21 (70.00%) JavaScript
2 6 (20.00%) Python
2 6 (20.00%) Scala
3 5 (16.67%) C#
3 5 (16.67%) SQL
4 1 (3.33%) C
4 1 (3.33%) ES6
4 1 (3.33%) Kotlin
4 1 (3.33%) PL/SQL
4 1 (3.33%) Ruby
Quality Assurance & Compliance
1 3 (10.00%) QA
System Software
1 9 (30.00%) Docker
Systems Management
1 12 (40.00%) Puppet
2 5 (16.67%) Opscode Chef
3 3 (10.00%) Grafana
3 3 (10.00%) Graylog
3 3 (10.00%) Terraform
Vendors
1 3 (10.00%) MuleSoft
1 3 (10.00%) Oracle
2 2 (6.67%) Google
2 2 (6.67%) Microsoft
2 2 (6.67%) Perforce
2 2 (6.67%) Splunk
2 2 (6.67%) Xamarin