Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in Yorkshire with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD 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.

Test-Driven Development (TDD)
England > Yorkshire
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 20 18 25
Rank change year-on-year -2 +7 +26
Contract jobs citing TDD 309 410 385
As % of all contract IT jobs advertised in Yorkshire 6.95% 7.60% 6.26%
As % of the Processes & Methodologies category 8.34% 9.03% 7.52%
Number of daily rates quoted 265 345 319
Yorkshire median daily rate £425 £425 £375
Median daily rate % change year-on-year - +13.33% +5.63%
10th Percentile £340 £313 £271
90th Percentile £538 £550 £518
England median daily rate £500 £460 £443
% change year-on-year +8.70% +3.84% +4.23%
Number of hourly rates quoted 0 0 0
Yorkshire median hourly rate - - -
England median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% +14.29%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Yorkshire with a requirement for process or methodology skills.

All Process and Methodology Skills
Yorkshire
Contract vacancies with a requirement for process or methodology skills 3706 4538 5120
As % of all contract IT jobs advertised in Yorkshire 83.36% 84.08% 83.20%
Number of daily rates quoted 2462 2955 3510
Yorkshire median daily rate £400 £400 £375
Median daily rate % change year-on-year - +6.67% +7.14%
10th Percentile £261 £263 £260
90th Percentile £550 £550 £535
England median daily rate £450 £425 £423
% change year-on-year +5.88% +0.47% +5.75%
Number of hourly rates quoted 97 130 179
Yorkshire median hourly rate £16.00 £14.81 £14.50
Median hourly rate % change year-on-year +8.05% +2.12% -
10th Percentile £9.81 £10.98 £9.25
90th Percentile £40.00 £42.63 £34.41
England median hourly rate £23.75 £24.42 £22.50
% change year-on-year -2.74% +8.53% +18.42%

TDD
Job Vacancy Trend in Yorkshire

Job postings citing TDD as a percentage of all IT jobs advertised in Yorkshire.

Job vacancy trend for TDD in Yorkshire

TDD
Contractor Daily Rate Trend in Yorkshire

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

Contractor daily rate trend for TDD in Yorkshire

TDD
Contractor Daily Rate Histogram in Yorkshire

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

Contractor daily rate histogram for TDD in Yorkshire

TDD
Contractor Hourly Rate Trend in Yorkshire

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

Contractor hourly rate trend for TDD in Yorkshire

TDD
Contract Job Locations in Yorkshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Yorkshire region over the 6 months to 21 November 2017. 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
West Yorkshire -1 245 £425 - 68
South Yorkshire -3 51 £450 - 12
North Yorkshire +10 8 £450 +50.00% 6
East Yorkshire - 6 £350 - 1
TDD
England

For the 6 months to 21 November 2017, IT contractor jobs citing TDD 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 Yorkshire region with a requirement for TDD.

1 247 (79.94%) Agile Software Development
2 189 (61.17%) Java
3 161 (52.10%) BDD
4 146 (47.25%) JavaScript
5 101 (32.69%) Scrum
6 97 (31.39%) Microservices
7 95 (30.74%) Git (software)
8 88 (28.48%) Spring
9 84 (27.18%) Node.js
10 79 (25.57%) SQL
10 79 (25.57%) HTML
11 76 (24.60%) Test Automation
12 74 (23.95%) Software Engineering
13 71 (22.98%) NoSQL
14 66 (21.36%) MongoDB
15 65 (21.04%) Jenkins
16 63 (20.39%) AngularJS
16 63 (20.39%) MySQL
16 63 (20.39%) CSS
17 62 (20.06%) Open Source
17 62 (20.06%) React
18 57 (18.45%) Hibernate
19 54 (17.48%) .NET
20 53 (17.15%) MVC
20 53 (17.15%) DevOps
21 51 (16.50%) Pair Programming
22 50 (16.18%) RESTful
22 50 (16.18%) Cucumber
23 48 (15.53%) Kanban
24 46 (14.89%) Continuous Integration

TDD
Co-occurring IT Skills in Yorkshire 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 30 (9.71%) Confluence
2 16 (5.18%) CMS
3 15 (4.85%) Apache Solr
4 13 (4.21%) Elasticsearch
5 11 (3.56%) Sitecore CMS
6 8 (2.59%) JBoss
6 8 (2.59%) Tomcat
6 8 (2.59%) WebLogic
7 6 (1.94%) Apache
7 6 (1.94%) Apache Spark
8 5 (1.62%) Jetty
8 5 (1.62%) Tornado
9 3 (0.97%) WebSphere
10 2 (0.65%) WordPress
11 1 (0.32%) Adobe Experience Manager
11 1 (0.32%) Cloud Foundry
11 1 (0.32%) Drupal
11 1 (0.32%) IIS
11 1 (0.32%) Oracle SOA Suite
Applications
1 2 (0.65%) Adobe After Effects
1 2 (0.65%) Adobe Illustrator
1 2 (0.65%) Photoshop
2 1 (0.32%) MS Visio
Cloud Services
1 19 (6.15%) Slack
2 10 (3.24%) Amazon AWS
3 9 (2.91%) GitHub
4 7 (2.27%) Microsoft Azure
5 3 (0.97%) PaaS
5 3 (0.97%) SmartFocus
6 2 (0.65%) IaaS
7 1 (0.32%) Amazon SQS
7 1 (0.32%) AWS CloudFormation
7 1 (0.32%) CloudBees
7 1 (0.32%) OpenShift
Communications & Networking
1 5 (1.62%) AMQP
1 5 (1.62%) Kerberos
2 3 (0.97%) HTTP
3 2 (0.65%) Firewall
4 1 (0.32%) Internet
Database & Business Intelligence
1 71 (22.98%) NoSQL
2 66 (21.36%) MongoDB
3 63 (20.39%) MySQL
4 38 (12.30%) SQL Server
5 32 (10.36%) Apache Cassandra
6 31 (10.03%) PostgreSQL
7 13 (4.21%) Big Data
8 12 (3.88%) Hadoop
9 9 (2.91%) SQL Server 2008
9 9 (2.91%) SQL Server 2012
10 8 (2.59%) Couchbase
11 6 (1.94%) HBase
11 6 (1.94%) Relational Database
11 6 (1.94%) Riak
12 5 (1.62%) Redis
13 3 (0.97%) CouchDB
14 2 (0.65%) Apache Hive
14 2 (0.65%) Oracle Database
15 1 (0.32%) Amazon DynamoDB
15 1 (0.32%) Sqoop
Development Applications
1 95 (30.74%) Git (software)
2 65 (21.04%) Jenkins
3 50 (16.18%) Cucumber
4 45 (14.56%) JIRA
5 38 (12.30%) Selenium
6 32 (10.36%) JUnit
7 28 (9.06%) Maven
8 25 (8.09%) Jasmine
9 24 (7.77%) WebDriver
10 12 (3.88%) Karma Test Runner
11 9 (2.91%) Octopus Deploy
12 8 (2.59%) Mockito
13 7 (2.27%) Grunt
13 7 (2.27%) Mercurial
13 7 (2.27%) Subversion
14 6 (1.94%) AppVeyor
14 6 (1.94%) CircleCI
14 6 (1.94%) FitNesse
14 6 (1.94%) JBehave
14 6 (1.94%) Vagrant
General
1 23 (7.44%) Finance
2 9 (2.91%) Telecoms
3 8 (2.59%) Electronics
3 8 (2.59%) Games
3 8 (2.59%) Manufacturing
3 8 (2.59%) Marketing
4 5 (1.62%) Banking
5 4 (1.29%) Retail Banking
6 2 (0.65%) Billing
6 2 (0.65%) Retail
7 1 (0.32%) Advertising
Job Titles
1 229 (74.11%) Developer
2 102 (33.01%) Java Developer
3 44 (14.24%) .NET Developer
3 44 (14.24%) JavaScript Developer
4 32 (10.36%) Senior Developer
5 28 (9.06%) Agile Developer
6 27 (8.74%) C# .NET Developer
6 27 (8.74%) C# Developer
7 26 (8.41%) Software Engineer
8 22 (7.12%) Automation Tester
8 22 (7.12%) Tester
9 20 (6.47%) Agile Java Developer
9 20 (6.47%) Full Stack Developer
10 18 (5.83%) Front End Developer (Client-Side Developer)
10 18 (5.83%) Java Engineer
10 18 (5.83%) Java Software Engineer
11 17 (5.50%) Node.js Developer
12 16 (5.18%) ASP.NET Developer
12 16 (5.18%) ASP.NET MVC Developer
13 15 (4.85%) Architect
Libraries, Frameworks & Software Standards
1 88 (28.48%) Spring
2 84 (27.18%) Node.js
3 79 (25.57%) HTML
4 63 (20.39%) AngularJS
4 63 (20.39%) CSS
5 62 (20.06%) React
6 57 (18.45%) Hibernate
7 54 (17.48%) .NET
8 50 (16.18%) RESTful
9 43 (13.92%) REST
10 41 (13.27%) ASP.NET
11 38 (12.30%) ASP.NET MVC
12 33 (10.68%) HTML5
13 30 (9.71%) CSS3
13 30 (9.71%) Spring Boot
14 28 (9.06%) Web Services
15 27 (8.74%) ASP.NET Web API
16 24 (7.77%) .NET Framework
17 21 (6.80%) J2EE
17 21 (6.80%) jQuery
Miscellaneous
1 23 (7.44%) User Experience
2 21 (6.80%) Enterprise Software
2 21 (6.80%) Greenfield Project
3 20 (6.47%) Analytical Skills
4 14 (4.53%) Mobile App
5 9 (2.91%) Algorithms
6 4 (1.29%) Computer Science
6 4 (1.29%) Data Structures
6 4 (1.29%) Media Streaming
7 2 (0.65%) Virtual Team
8 1 (0.32%) Chromecast
8 1 (0.32%) IPTV
8 1 (0.32%) Mainframe
8 1 (0.32%) Management Information System
8 1 (0.32%) RIA
8 1 (0.32%) Smartphone
8 1 (0.32%) Social Media
Operating Systems
1 44 (14.24%) Linux
2 23 (7.44%) Red Hat Enterprise Linux
3 19 (6.15%) Unix
4 16 (5.18%) Android
5 15 (4.85%) Mac OS X
6 11 (3.56%) Apple iOS
Processes & Methodologies
1 247 (79.94%) Agile Software Development
2 161 (52.10%) BDD
3 101 (32.69%) Scrum
4 97 (31.39%) Microservices
5 76 (24.60%) Test Automation
6 74 (23.95%) Software Engineering
7 62 (20.06%) Open Source
8 53 (17.15%) DevOps
8 53 (17.15%) MVC
9 51 (16.50%) Pair Programming
10 48 (15.53%) Kanban
11 46 (14.89%) Continuous Integration
12 36 (11.65%) SOA
13 35 (11.33%) Front End Development
14 33 (10.68%) Mentoring
15 31 (10.03%) Continuous Delivery
16 28 (9.06%) Web Development
17 27 (8.74%) OOP
17 27 (8.74%) Unit Testing
18 26 (8.41%) Integration Testing
Programming Languages
1 189 (61.17%) Java
2 146 (47.25%) JavaScript
3 79 (25.57%) SQL
4 42 (13.59%) C#
5 32 (10.36%) Python
6 25 (8.09%) Ruby
7 24 (7.77%) Scala
8 23 (7.44%) PHP
9 14 (4.53%) T-SQL
10 6 (1.94%) PHP 5
11 5 (1.62%) Bash Shell
11 5 (1.62%) Groovy
11 5 (1.62%) Kotlin
12 4 (1.29%) ES6
12 4 (1.29%) PHP 7
13 3 (0.97%) Perl
14 2 (0.65%) Go
15 1 (0.32%) Apple Swift
15 1 (0.32%) Clojure
15 1 (0.32%) Elixir
Qualifications
1 10 (3.24%) BPSS Clearance
2 6 (1.94%) Degree
3 5 (1.62%) Security Cleared
4 3 (0.97%) SC Cleared
5 2 (0.65%) CTC Cleared
5 2 (0.65%) PMI Certification
5 2 (0.65%) PMP
6 1 (0.32%) BC Cleared
6 1 (0.32%) Computer Science Degree
6 1 (0.32%) DV Cleared
Quality Assurance & Compliance
1 5 (1.62%) QA
2 2 (0.65%) Disclosure Scotland
2 2 (0.65%) WCAG
System Software
1 41 (13.27%) Docker
2 5 (1.62%) Apache ZooKeeper
2 5 (1.62%) HDFS
3 2 (0.65%) Virtual Machines
4 1 (0.32%) Apache Flume
Systems Management
1 15 (4.85%) Puppet
2 13 (4.21%) Ansible
3 11 (3.56%) Opscode Chef
4 6 (1.94%) Terraform
5 5 (1.62%) Kubernetes
6 1 (0.32%) Cobbler
6 1 (0.32%) Grafana
6 1 (0.32%) Graylog
Vendors
1 37 (11.97%) Oracle
2 16 (5.18%) Microsoft
2 16 (5.18%) Red Hat
3 11 (3.56%) Sitecore
4 8 (2.59%) SAP
5 7 (2.27%) Xamarin
6 3 (0.97%) Adobe
6 3 (0.97%) hybris
7 2 (0.65%) Telerik
7 2 (0.65%) Zend
8 1 (0.32%) Informatica
8 1 (0.32%) MuleSoft
8 1 (0.32%) ServiceNow
8 1 (0.32%) Splunk
8 1 (0.32%) Talend