The table below looks at the statistics for TDD skills in IT contracts advertised for the Sheffield region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 4 May 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
4 May 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 42 24 21
Rank change year-on-year
-18 -3
Contract jobs citing TDD 12 13 7
As % of all contract IT jobs located in Sheffield 2.71% 4.17% 3.32%
As % of the Processes & Methodologies category 3.38% 5.16% 5.15%
Number of daily rates quoted 12 9 6
Median daily rate £413 £325 £375
Median daily rate % change year-on-year
+26.92% -13.33%
90% offered a daily rate of more than £316 £302 £333
10% offered a daily rate of more than £474 £410 £406
UK excluding London median daily rate £400 £385 £375
% change year-on-year
+3.89% +2.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.75 £42.50 £43.75
% change year-on-year
+0.58% -2.85%
TDD
South Yorkshire

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Sheffield region.

Processes & Methodologies Category
Sheffield
Contract IT job ads with a match in the
Processes & Methodologies category
355 252 136
As % of all contract IT jobs located in Sheffield 80.14% 80.77% 64.45%
Number of daily rates quoted 267 174 89
Median daily rate £463 £375 £305
Median daily rate % change year-on-year
+23.33% +23.15%
90% offered a daily rate of more than £325 £255 £210
10% offered a daily rate of more than £725 £525 £440
UK excluding London median daily rate £400 £388 £375
% change year-on-year
+3.22% +3.33%
Number of hourly rates quoted 4 10 9
Median hourly rate £14.00 £12.50 £20.50
Median hourly rate % change year-on-year
+12.00% -39.02%
UK excluding London median hourly rate £36.00 £30.50 £31.00
% change year-on-year
+18.03% -1.61%

TDD
Jobs Demand Trend in Sheffield

The demand trend of contract jobs across the Sheffield region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Sheffield

TDD
Daily Rate Trend in Sheffield

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Sheffield region.

TDD Daily Rate Trend in Sheffield

TDD
Daily Rate Histogram in Sheffield

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Sheffield region over the 3 months to 4 May 2016.

TDD Daily Rate Histogram in Sheffield

TDD
Hourly Rate Trend in Sheffield

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

TDD Hourly Rate Trend in Sheffield

TDD
Top 30 Related IT Skills in Sheffield

For the 6 months to 4 May 2016, 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 Sheffield region with a requirement for TDD.

1 34 (87.18%) Agile Software Development
2 27 (69.23%) BDD
3 26 (66.67%) Java
4 20 (51.28%) JavaScript
5 19 (48.72%) Scrum
6 17 (43.59%) HTML
7 15 (38.46%) CSS
7 15 (38.46%) MVC
8 12 (30.77%) Spring
8 12 (30.77%) RESTful
9 11 (28.21%) Scala
9 11 (28.21%) MongoDB
9 11 (28.21%) SOAP
9 11 (28.21%) Web Services
9 11 (28.21%) OO
10 10 (25.64%) HTML5
11 8 (20.51%) CSS3
11 8 (20.51%) Hibernate
12 7 (17.95%) CMS
12 7 (17.95%) C#
12 7 (17.95%) .NET
12 7 (17.95%) J2EE
12 7 (17.95%) NoSQL
12 7 (17.95%) Node.js
12 7 (17.95%) Git (software)
12 7 (17.95%) Continuous Integration
13 6 (15.38%) Umbraco
13 6 (15.38%) Unit Testing
13 6 (15.38%) Kanban
13 6 (15.38%) ASP.NET MVC

TDD
Top Related IT Skills in Sheffield 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 7 (17.95%) CMS
1 7 (17.95%) Node.js
2 6 (15.38%) Umbraco
3 5 (12.82%) Tomcat
4 3 (7.69%) Apache
4 3 (7.69%) Apache Solr
4 3 (7.69%) JBoss
5 1 (2.56%) Elasticsearch
5 1 (2.56%) Liferay
5 1 (2.56%) Magnolia
Business Applications
1 1 (2.56%) BigMachines
1 1 (2.56%) Eloqua
Cloud Services
1 4 (10.26%) Amazon AWS
1 4 (10.26%) GitHub
2 3 (7.69%) Heroku
3 1 (2.56%) Cloud Computing
3 1 (2.56%) SaaS
Communications & Networking
1 2 (5.13%) HTTP
Database & Business Intelligence
1 11 (28.21%) MongoDB
2 7 (17.95%) NoSQL
3 4 (10.26%) MySQL
4 3 (7.69%) Apache Cassandra
4 3 (7.69%) Jackrabbit
4 3 (7.69%) PostgreSQL
5 1 (2.56%) Oracle Database
5 1 (2.56%) Relational Database
5 1 (2.56%) SQL Server
Development Applications
1 7 (17.95%) Git (software)
2 6 (15.38%) Mockito
3 5 (12.82%) Maven
3 5 (12.82%) NUnit
4 4 (10.26%) Selenium
5 3 (7.69%) Jenkins
5 3 (7.69%) Subversion
5 3 (7.69%) TeamCity
6 2 (5.13%) Ant
6 2 (5.13%) JIRA
6 2 (5.13%) JUnit
6 2 (5.13%) Liquibase
7 1 (2.56%) EasyMock
7 1 (2.56%) Gradle
7 1 (2.56%) jMock
7 1 (2.56%) Mercurial
7 1 (2.56%) Oracle APEX
7 1 (2.56%) Travis CI
7 1 (2.56%) Vagrant
7 1 (2.56%) WebDriver
General
1 2 (5.13%) Finance
Job Titles
1 36 (92.31%) Developer
2 20 (51.28%) Java Developer
3 6 (15.38%) Umbraco Developer
4 5 (12.82%) .NET Developer
4 5 (12.82%) Agile Developer
4 5 (12.82%) JavaScript Developer
5 4 (10.26%) Agile Java Developer
5 4 (10.26%) Scala Developer
5 4 (10.26%) Senior Developer
5 4 (10.26%) Senior Java Developer
6 3 (7.69%) CMS Developer
6 3 (7.69%) Java Scala Developer
6 3 (7.69%) Programmer
7 2 (5.13%) Ruby Developer
7 2 (5.13%) Scrum Master
8 1 (2.56%) Agile .NET Developer
8 1 (2.56%) Agile C# Developer
8 1 (2.56%) ASP.NET Programmer
8 1 (2.56%) Front End Developer (Client-Side Developer)
8 1 (2.56%) UI Developer
Libraries, Frameworks & Software Standards
1 17 (43.59%) HTML
2 15 (38.46%) CSS
3 12 (30.77%) RESTful
3 12 (30.77%) Spring
4 11 (28.21%) SOAP
4 11 (28.21%) Web Services
5 10 (25.64%) HTML5
6 8 (20.51%) CSS3
6 8 (20.51%) Hibernate
7 7 (17.95%) .NET
7 7 (17.95%) J2EE
8 6 (15.38%) AngularJS
8 6 (15.38%) ASP.NET
8 6 (15.38%) ASP.NET MVC
9 5 (12.82%) .NET Framework
9 5 (12.82%) JSON
9 5 (12.82%) Play Framework
9 5 (12.82%) REST
9 5 (12.82%) Spring MVC
10 4 (10.26%) Ruby on Rails
Miscellaneous
1 1 (2.56%) Digital Media
1 1 (2.56%) Enterprise Software
1 1 (2.56%) Social Media
1 1 (2.56%) User Experience
Operating Systems
1 6 (15.38%) Linux
2 3 (7.69%) Unix
3 2 (5.13%) Mac OS X
Processes & Methodologies
1 34 (87.18%) Agile Software Development
2 27 (69.23%) BDD
3 19 (48.72%) Scrum
4 15 (38.46%) MVC
5 11 (28.21%) OO
6 7 (17.95%) Continuous Integration
7 6 (15.38%) Kanban
7 6 (15.38%) OOP
7 6 (15.38%) Pair Programming
7 6 (15.38%) Unit Testing
8 5 (12.82%) Secure Coding
8 5 (12.82%) Web Development
9 4 (10.26%) Concurrent Programming
9 4 (10.26%) Data Protection
9 4 (10.26%) DevOps
10 3 (7.69%) Multithreading
10 3 (7.69%) Open Source
10 3 (7.69%) SOLID
11 2 (5.13%) Front End Development
11 2 (5.13%) Microservices
Programming Languages
1 26 (66.67%) Java
2 20 (51.28%) JavaScript
3 11 (28.21%) Scala
4 7 (17.95%) C#
5 6 (15.38%) SQL
6 5 (12.82%) PHP
6 5 (12.82%) Ruby
7 4 (10.26%) Clojure
7 4 (10.26%) Groovy
8 3 (7.69%) Perl
9 2 (5.13%) Jython
10 1 (2.56%) Apex Code
10 1 (2.56%) Go
Qualifications
1 2 (5.13%) Security Cleared
2 1 (2.56%) SC Cleared
System Software
1 3 (7.69%) Docker
Systems Management
1 1 (2.56%) Opscode Chef
1 1 (2.56%) Puppet
Vendors
1 1 (2.56%) Oracle
1 1 (2.56%) Salesforce.com
1 1 (2.56%) Siebel
1 1 (2.56%) VMware
1 1 (2.56%) Xamarin