Period
to 22 July 2017

The following table provides summary statistics for contract job vacancies advertised in Bradford 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 22 July 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)
West Yorkshire > Bradford
6 months to
22 Jul 2017
Same period 2016 Same period 2015
Rank 23 14 47
Rank change year-on-year -9 +33 -17
Contract jobs citing TDD 8 28 9
As % of all contract IT jobs advertised in Bradford 3.86% 9.33% 1.94%
As % of the Processes & Methodologies category 4.55% 10.98% 2.21%
Number of daily rates quoted 7 41 4
Bradford median daily rate £500 £450 £350
Median daily rate % change year-on-year +11.11% +28.57% -6.67%
West Yorkshire median daily rate £420 £450 £375
% change year-on-year -6.67% +20.00% +15.38%
Number of hourly rates quoted 0 0 0
Bradford median hourly rate - - -
West Yorkshire median hourly rate - - -

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Bradford with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Bradford
Contract job vacancies with a requirement for process and methodology skills 176 255 407
As % of all contract IT job vacancies advertised in Bradford 85.02% 85.00% 87.53%
Number of daily rates quoted 98 169 206
Bradford median daily rate £425 £400 £345
Median daily rate % change year-on-year +6.25% +15.94% +2.22%
10th Percentile £225 £247 £233
90th Percentile £588 £550 £475
West Yorkshire median daily rate £400 £400 £356
% change year-on-year - +12.36% +1.71%
Number of hourly rates quoted 4 6 19
Bradford median hourly rate £22.41 £23.00 £16.72
Median hourly rate % change year-on-year -2.59% +37.56% +31.55%
10th Percentile £13.13 £13.31 £10.20
90th Percentile £32.51 £113.75 £22.86
West Yorkshire median hourly rate £13.43 £13.50 £17.11
% change year-on-year -0.52% -21.10% +11.28%

TDD
Job Vacancy Trend in Bradford

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

Job vacancy trend for TDD in Bradford

TDD
Contractor Daily Rate Trend in Bradford

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

Contractor daily rate trend for TDD in Bradford

For the 6 months to 22 July 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 Bradford region with a requirement for TDD.

1 8 (100.00%) Java
1 8 (100.00%) Agile Software Development
1 8 (100.00%) Microservices
2 6 (75.00%) Continuous Delivery
2 6 (75.00%) Translating Business Requirements
2 6 (75.00%) BDD
2 6 (75.00%) NoSQL
2 6 (75.00%) Jenkins
2 6 (75.00%) Retail
2 6 (75.00%) Kanban
2 6 (75.00%) RESTful
2 6 (75.00%) Open Source
2 6 (75.00%) Scrum
2 6 (75.00%) JSON
2 6 (75.00%) JIRA
2 6 (75.00%) Docker
2 6 (75.00%) Greenfield Project
3 2 (25.00%) JavaScript
3 2 (25.00%) .NET
3 2 (25.00%) ASP.NET
3 2 (25.00%) Linux
3 2 (25.00%) MVC
3 2 (25.00%) Spring MVC
3 2 (25.00%) Unit Testing
3 2 (25.00%) ASP.NET MVC
3 2 (25.00%) Cucumber
3 2 (25.00%) Scala
3 2 (25.00%) Git (software)
3 2 (25.00%) Test Automation
3 2 (25.00%) Spring

TDD
Co-occurring IT Skills in Bradford 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:

Database & Business Intelligence
1 6 (75.00%) NoSQL
Development Applications
1 6 (75.00%) Jenkins
1 6 (75.00%) JIRA
2 2 (25.00%) Cucumber
2 2 (25.00%) Git (software)
General
1 6 (75.00%) Retail
Job Titles
1 6 (75.00%) Architect
2 5 (62.50%) Java Architect
3 4 (50.00%) Java Technical Architect
3 4 (50.00%) Technical Architect
4 2 (25.00%) Developer
4 2 (25.00%) Java Developer
4 2 (25.00%) Java Scala Developer
4 2 (25.00%) Scala Developer
5 1 (12.50%) Solutions Architect
Libraries, Frameworks & Software Standards
1 6 (75.00%) JSON
1 6 (75.00%) RESTful
2 2 (25.00%) .NET
2 2 (25.00%) ASP.NET
2 2 (25.00%) ASP.NET MVC
2 2 (25.00%) Play Framework
2 2 (25.00%) Spring
2 2 (25.00%) Spring MVC
Miscellaneous
1 6 (75.00%) Greenfield Project
Operating Systems
1 2 (25.00%) Linux
Processes & Methodologies
1 8 (100.00%) Agile Software Development
1 8 (100.00%) Microservices
2 6 (75.00%) BDD
2 6 (75.00%) Continuous Delivery
2 6 (75.00%) Kanban
2 6 (75.00%) Open Source
2 6 (75.00%) Scrum
2 6 (75.00%) Translating Business Requirements
3 2 (25.00%) DevOps
3 2 (25.00%) MVC
3 2 (25.00%) Test Automation
3 2 (25.00%) Unit Testing
Programming Languages
1 8 (100.00%) Java
2 2 (25.00%) JavaScript
2 2 (25.00%) Scala
System Software
1 6 (75.00%) Docker