The table below looks at the statistics for TDD skills in IT contracts advertised for the Osterley region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 28 September 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
28 Sep 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 4 2 3
Rank change year-on-year
-2 +1
Contract jobs citing TDD 1 1 2
As % of all contract IT jobs located in Osterley 14.29% 50.00% 28.57%
As % of the Processes & Methodologies category 16.67% 50.00% 28.57%
Number of daily rates quoted 1 1 1
Median daily rate £515 £550 £325
Median daily rate % change year-on-year
-6.36% +69.23%
UK excluding London median daily rate £425 £390 £375
% change year-on-year
+8.97% +4.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.25 £37.45 £36.25
% change year-on-year
+10.14% +3.31%
TDD
London

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

Processes & Methodologies Category
Osterley
Contract IT job ads with a match in the
Processes & Methodologies category
6 2 7
As % of all contract IT jobs located in Osterley 85.71% 100.00% 100.00%
Number of daily rates quoted 6 1 6
Median daily rate £375 £550 £420
Median daily rate % change year-on-year
-31.81% +30.95%
UK excluding London median daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £32.50 £33.64 £26.25
% change year-on-year
-3.38% +28.15%

TDD
Jobs Demand Trend in Osterley

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

TDD Jobs Demand Trend in Osterley

TDD
Daily Rate Trend in Osterley

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

TDD Daily Rate Trend in Osterley

TDD
Top 30 Related IT Skills in Osterley

For the 6 months to 28 September 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 Osterley region with a requirement for TDD.

1 7 (100.00%) Agile Software Development
1 7 (100.00%) JSON
1 7 (100.00%) BDD
2 5 (71.43%) Continuous Integration
2 5 (71.43%) REST
2 5 (71.43%) High Availability
2 5 (71.43%) Email Marketing
2 5 (71.43%) Git (software)
2 5 (71.43%) Visualforce
2 5 (71.43%) Apex Code
2 5 (71.43%) Pair Programming
2 5 (71.43%) Scrum
2 5 (71.43%) Subversion
2 5 (71.43%) Marketing
2 5 (71.43%) Degree
2 5 (71.43%) Java
2 5 (71.43%) SOAP
2 5 (71.43%) XML
2 5 (71.43%) OOP
2 5 (71.43%) OO
2 5 (71.43%) CRM
2 5 (71.43%) Salesforce.com
2 5 (71.43%) SOQL
2 5 (71.43%) Continuous Delivery
2 5 (71.43%) API Development
2 5 (71.43%) DevOps
3 2 (28.57%) Test Planning
3 2 (28.57%) DVB
3 2 (28.57%) Microsoft
3 2 (28.57%) HP

TDD
Top Related IT Skills in Osterley 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:

Applications
1 2 (28.57%) MS Excel
Communications & Networking
1 2 (28.57%) DVB
Development Applications
1 5 (71.43%) Git (software)
1 5 (71.43%) Subversion
2 2 (28.57%) JIRA
General
1 5 (71.43%) Marketing
Job Titles
1 5 (71.43%) CRM Developer
1 5 (71.43%) Developer
1 5 (71.43%) Salesforce.com Developer
1 5 (71.43%) Senior Developer
1 5 (71.43%) Senior Salesforce.com Developer
2 2 (28.57%) Mobile Tester
2 2 (28.57%) Tester
3 1 (14.29%) Android Tester
3 1 (14.29%) Integration Tester
3 1 (14.29%) iOS Tester
Libraries, Frameworks & Software Standards
1 7 (100.00%) JSON
2 5 (71.43%) REST
2 5 (71.43%) SOAP
2 5 (71.43%) Visualforce
2 5 (71.43%) XML
Miscellaneous
1 2 (28.57%) Mobile App
1 2 (28.57%) STB
Operating Systems
1 2 (28.57%) Android
1 2 (28.57%) Apple iOS
Processes & Methodologies
1 7 (100.00%) Agile Software Development
1 7 (100.00%) BDD
2 5 (71.43%) API Development
2 5 (71.43%) Continuous Delivery
2 5 (71.43%) Continuous Integration
2 5 (71.43%) CRM
2 5 (71.43%) DevOps
2 5 (71.43%) Email Marketing
2 5 (71.43%) High Availability
2 5 (71.43%) OO
2 5 (71.43%) OOP
2 5 (71.43%) Pair Programming
2 5 (71.43%) Scrum
3 2 (28.57%) Automated Testing
3 2 (28.57%) Integration Testing
3 2 (28.57%) Kanban
3 2 (28.57%) Test Planning
3 2 (28.57%) Test Scripting
Programming Languages
1 5 (71.43%) Apex Code
1 5 (71.43%) Java
1 5 (71.43%) SOQL
Qualifications
1 5 (71.43%) Degree
Systems Management
1 2 (28.57%) HP Quality Center
Vendors
1 5 (71.43%) Salesforce.com
2 2 (28.57%) HP
2 2 (28.57%) Microsoft