Period
to 19 January 2018

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 19 January 2018 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
19 Jan 2018
Same period 2017 Same period 2016
Rank 24 32 52
Rank change year-on-year +8 +20 -7
Contract jobs citing TDD 6 4 5
As % of all contract IT jobs advertised in Bradford 2.76% 1.67% 1.12%
As % of the Processes & Methodologies category 3.26% 2.01% 1.33%
Number of daily rates quoted 5 4 3
Bradford median daily rate £425 £413 £450
Median daily rate % change year-on-year +2.97% -8.28% +28.57%
10th Percentile £375 £374 £300
90th Percentile £438 £438 £490
West Yorkshire median daily rate £425 £425 £375
% change year-on-year - +13.33% -
Number of hourly rates quoted 0 0 0
Bradford median hourly rate - - -
West Yorkshire median hourly rate - - -

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 Bradford with a requirement for process or methodology skills.

All Process and Methodology Skills
Bradford
Contract vacancies with a requirement for process or methodology skills 184 199 376
As % of all contract IT jobs advertised in Bradford 84.79% 82.92% 84.30%
Number of daily rates quoted 130 109 218
Bradford median daily rate £400 £375 £375
Median daily rate % change year-on-year +6.67% - -
10th Percentile £261 £232 £273
90th Percentile £534 £475 £540
West Yorkshire median daily rate £400 £400 £385
% change year-on-year - +3.90% +5.48%
Number of hourly rates quoted 7 7 17
Bradford median hourly rate £17.50 £20.97 £15.86
Median hourly rate % change year-on-year -16.55% +32.22% -0.88%
10th Percentile £10.50 £14.41 £12.29
90th Percentile £20.41 £27.03 £32.55
West Yorkshire median hourly rate £16.00 £14.50 £15.36
% change year-on-year +10.34% -5.57% +5.90%

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 19 January 2018, 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 6 (100.00%) Agile Software Development
2 4 (66.67%) REST
3 3 (50.00%) Continuous Improvement
3 3 (50.00%) Mobile App
3 3 (50.00%) iOS Development
3 3 (50.00%) Kanban
3 3 (50.00%) Android
3 3 (50.00%) Test Automation
3 3 (50.00%) BDD
3 3 (50.00%) Apple iOS
3 3 (50.00%) iOS SDK
3 3 (50.00%) Scrum
3 3 (50.00%) Objective-C
3 3 (50.00%) SOAP
3 3 (50.00%) XML
3 3 (50.00%) Mobile Development
3 3 (50.00%) Continuous Integration
4 2 (33.33%) Virtual Team
4 2 (33.33%) User Stories
4 2 (33.33%) Games
4 2 (33.33%) PMP
4 2 (33.33%) PMI Certification
4 2 (33.33%) Velocity
4 2 (33.33%) DevOps
4 2 (33.33%) User Experience
5 1 (16.67%) Microservices
5 1 (16.67%) Test Strategy
5 1 (16.67%) RESTful
5 1 (16.67%) Scala
5 1 (16.67%) Pair Programming

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:

General
1 2 (33.33%) Games
Job Titles
1 3 (50.00%) Developer
1 3 (50.00%) iOS Developer
1 3 (50.00%) Mobile Developer
2 2 (33.33%) Scrum Master
3 1 (16.67%) Analyst
3 1 (16.67%) Automation Analyst
3 1 (16.67%) Quality Analyst
Libraries, Frameworks & Software Standards
1 4 (66.67%) REST
2 3 (50.00%) iOS SDK
2 3 (50.00%) SOAP
2 3 (50.00%) XML
3 2 (33.33%) Velocity
4 1 (16.67%) JSON
4 1 (16.67%) RESTful
4 1 (16.67%) Web Services
Miscellaneous
1 3 (50.00%) Mobile App
2 2 (33.33%) User Experience
2 2 (33.33%) Virtual Team
Operating Systems
1 3 (50.00%) Android
1 3 (50.00%) Apple iOS
Processes & Methodologies
1 6 (100.00%) Agile Software Development
2 3 (50.00%) BDD
2 3 (50.00%) Continuous Improvement
2 3 (50.00%) Continuous Integration
2 3 (50.00%) iOS Development
2 3 (50.00%) Kanban
2 3 (50.00%) Mobile Development
2 3 (50.00%) Scrum
2 3 (50.00%) Test Automation
3 2 (33.33%) DevOps
3 2 (33.33%) User Stories
4 1 (16.67%) Continuous Deployment
4 1 (16.67%) Exploratory Testing
4 1 (16.67%) Manual Testing
4 1 (16.67%) Microservices
4 1 (16.67%) Pair Programming
4 1 (16.67%) Regression Testing
4 1 (16.67%) Requirements Analysis
4 1 (16.67%) Test Strategy
Programming Languages
1 3 (50.00%) Objective-C
2 1 (16.67%) Java
2 1 (16.67%) Scala
Qualifications
1 2 (33.33%) PMI Certification
1 2 (33.33%) PMP
2 1 (16.67%) BPSS Clearance
Quality Assurance & Compliance
1 1 (16.67%) Disclosure Scotland