The table below looks at the statistics for TDD skills in IT contracts advertised for the Salford region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 8 December 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
8 Dec 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 13 2 6
Rank change year-on-year
-11 +4
Contract jobs citing TDD 11 23 6
As % of all contract IT jobs located in Salford 15.28% 41.07% 18.18%
As % of the Processes & Methodologies category 16.67% 45.10% 25.00%
Number of daily rates quoted 11 20 6
Median daily rate £440 £375 £363
Median daily rate % change year-on-year
+17.33% +3.44%
90% offered a daily rate of more than £400 £341 £325
10% offered a daily rate of more than £450 £430 £475
UK excluding London median daily rate £425 £400 £375
% change year-on-year
+6.25% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.76 £36.98 £38.25
% change year-on-year
+7.53% -3.33%
TDD
Manchester

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

Processes & Methodologies Category
Salford
Contract IT job ads with a match in the
Processes & Methodologies category
66 51 24
As % of all contract IT jobs located in Salford 91.67% 91.07% 72.73%
Number of daily rates quoted 60 39 20
Median daily rate £440 £350 £350
Median daily rate % change year-on-year
+25.71% -
90% offered a daily rate of more than £325 £255 £300
10% offered a daily rate of more than £600 £425 £400
UK excluding London median daily rate £413 £400 £385
% change year-on-year
+3.12% +3.89%
Number of hourly rates quoted 0 3 0
Median hourly rate - £18.50 -
UK excluding London median hourly rate £31.00 £35.00 £25.00
% change year-on-year
-11.42% +40.00%

TDD
Jobs Demand Trend in Salford

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

TDD Jobs Demand Trend in Salford

TDD
Daily Rate Trend in Salford

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

TDD Daily Rate Trend in Salford

TDD
Top 30 Related IT Skills in Salford

For the 6 months to 8 December 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 Salford region with a requirement for TDD.

1 21 (100.00%) Agile Software Development
2 18 (85.71%) BDD
3 15 (71.43%) Software Engineering
4 14 (66.67%) Git (software)
4 14 (66.67%) Web Services
5 12 (57.14%) JSON
5 12 (57.14%) REST
6 10 (47.62%) User Experience
6 10 (47.62%) Java
6 10 (47.62%) Scrum
7 9 (42.86%) HTTP
7 9 (42.86%) JavaScript
7 9 (42.86%) JUnit
7 9 (42.86%) Jenkins
8 8 (38.10%) Amazon AWS
8 8 (38.10%) HTML
8 8 (38.10%) XML
8 8 (38.10%) OOP
8 8 (38.10%) Continuous Integration
8 8 (38.10%) Subversion
9 7 (33.33%) Android
9 7 (33.33%) RESTful
10 6 (28.57%) Linux
10 6 (28.57%) PHP
10 6 (28.57%) SQL
10 6 (28.57%) Apple iOS
10 6 (28.57%) NoSQL
10 6 (28.57%) High Availability
10 6 (28.57%) Node.js
11 5 (23.81%) Continuous Delivery

TDD
Top Related IT Skills in Salford 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:

Cloud Services
1 8 (38.10%) Amazon AWS
2 3 (14.29%) Cloud Computing
Communications & Networking
1 9 (42.86%) HTTP
2 5 (23.81%) Internet
Database & Business Intelligence
1 6 (28.57%) NoSQL
2 3 (14.29%) MySQL
3 2 (9.52%) MarkLogic
Development Applications
1 14 (66.67%) Git (software)
2 9 (42.86%) Jenkins
2 9 (42.86%) JUnit
3 8 (38.10%) Subversion
4 4 (19.05%) Cucumber
5 3 (14.29%) Calabash
5 3 (14.29%) Hudson
5 3 (14.29%) JIRA
5 3 (14.29%) PhantomJS
5 3 (14.29%) Robotium
5 3 (14.29%) TeamCity
6 2 (9.52%) Mercurial
7 1 (4.76%) Babel
7 1 (4.76%) Selenium
7 1 (4.76%) webpack
General
1 5 (23.81%) Games
Job Titles
1 10 (47.62%) Software Engineer
2 9 (42.86%) Developer
3 4 (19.05%) Android Developer
4 3 (14.29%) iOS Android Developer
4 3 (14.29%) iOS Developer
4 3 (14.29%) PHP Developer
4 3 (14.29%) Scala Software Engineer
4 3 (14.29%) Senior Android Developer
4 3 (14.29%) Senior Developer
5 2 (9.52%) Agile Developer
5 2 (9.52%) Android Engineer
5 2 (9.52%) Android Software Engineer
5 2 (9.52%) iOS Software Engineer
5 2 (9.52%) Senior iOS Android Developer
5 2 (9.52%) Senior iOS Developer
5 2 (9.52%) Senior Software Engineer
6 1 (4.76%) Automation Tester
6 1 (4.76%) HTML Developer
6 1 (4.76%) Java Mobile Developer
6 1 (4.76%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 14 (66.67%) Web Services
2 12 (57.14%) JSON
2 12 (57.14%) REST
3 8 (38.10%) HTML
3 8 (38.10%) XML
4 7 (33.33%) RESTful
5 6 (28.57%) Node.js
6 4 (19.05%) CSS
6 4 (19.05%) HTML5
7 3 (14.29%) Sass
7 3 (14.29%) XSLT
8 2 (9.52%) ActiveMQ
8 2 (9.52%) JMS
8 2 (9.52%) React
9 1 (4.76%) AngularJS
9 1 (4.76%) Apache Cordova
9 1 (4.76%) Ember.js
9 1 (4.76%) React Native
Miscellaneous
1 10 (47.62%) User Experience
2 3 (14.29%) Streaming Media
3 2 (9.52%) Interactive TV
3 2 (9.52%) IPTV
3 2 (9.52%) MHEG
3 2 (9.52%) Mobile App
4 1 (4.76%) New Media
Operating Systems
1 7 (33.33%) Android
2 6 (28.57%) Apple iOS
2 6 (28.57%) Linux
3 3 (14.29%) Windows
3 3 (14.29%) Windows Mobile
4 2 (9.52%) Unix
Processes & Methodologies
1 21 (100.00%) Agile Software Development
2 18 (85.71%) BDD
3 15 (71.43%) Software Engineering
4 10 (47.62%) Scrum
5 8 (38.10%) Continuous Integration
5 8 (38.10%) OOP
6 6 (28.57%) High Availability
7 5 (23.81%) Continuous Delivery
7 5 (23.81%) Performance Tuning
8 4 (19.05%) Android Development
8 4 (19.05%) Mobile Development
8 4 (19.05%) Web Development
9 3 (14.29%) Automated Testing
9 3 (14.29%) Coaching
9 3 (14.29%) DRM
9 3 (14.29%) iOS Development
9 3 (14.29%) Pair Programming
9 3 (14.29%) Project Management
10 2 (9.52%) Mobile Application Development
10 2 (9.52%) UX Design
Programming Languages
1 10 (47.62%) Java
2 9 (42.86%) JavaScript
3 6 (28.57%) PHP
3 6 (28.57%) SQL
4 5 (23.81%) Objective-C
4 5 (23.81%) Ruby
5 4 (19.05%) C++
6 3 (14.29%) Scala
7 2 (9.52%) ActionScript
7 2 (9.52%) C#
8 1 (4.76%) ECMAScript
8 1 (4.76%) ES6
Quality Assurance & Compliance
1 4 (19.05%) QA
Vendors
1 3 (14.29%) Twitter
2 2 (9.52%) OpenTV
2 2 (9.52%) Oracle