Period
to 23 November 2017

The following table provides summary statistics for contract job vacancies advertised in Halifax 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 23 November 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 > Halifax
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 17 23 37
Rank change year-on-year +6 +14 -
Contract jobs citing TDD 1 11 2
As % of all contract IT jobs advertised in Halifax 0.95% 5.12% 0.73%
As % of the Processes & Methodologies category 1.19% 6.36% 0.91%
Number of daily rates quoted 1 11 2
Halifax median daily rate £455 £425 £325
Median daily rate % change year-on-year +7.06% +30.77% -
West Yorkshire median daily rate £425 £425 £351
% change year-on-year - +21.08% -6.40%
Number of hourly rates quoted 0 0 0
Halifax 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 Halifax with a requirement for process or methodology skills.

All Process and Methodology Skills
Halifax
Contract vacancies with a requirement for process or methodology skills 84 173 219
As % of all contract IT jobs advertised in Halifax 80.00% 80.47% 79.64%
Number of daily rates quoted 59 142 166
Halifax median daily rate £400 £375 £356
Median daily rate % change year-on-year +6.67% +5.34% -13.70%
10th Percentile £285 £283 £259
90th Percentile £527 £450 £475
West Yorkshire median daily rate £400 £400 £375
% change year-on-year - +6.67% +7.14%
Number of hourly rates quoted 2 0 7
Halifax median hourly rate £12.16 - £13.00
10th Percentile £9.10 - £9.90
90th Percentile £15.10 - £17.85
West Yorkshire median hourly rate £16.00 £14.50 £15.00
% change year-on-year +10.34% -3.33% +3.45%

TDD
Job Vacancy Trend in Halifax

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

Job vacancy trend for TDD in Halifax

TDD
Contractor Daily Rate Trend in Halifax

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

Contractor daily rate trend for TDD in Halifax

For the 6 months to 23 November 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 Halifax region with a requirement for TDD.

1 1 (100.00%) Finance
1 1 (100.00%) Games
1 1 (100.00%) Scrum
1 1 (100.00%) Agile Software Development
1 1 (100.00%) Continuous Integration
1 1 (100.00%) Kanban
1 1 (100.00%) Test Automation
1 1 (100.00%) Waterfall
1 1 (100.00%) ATDD
1 1 (100.00%) User Stories
1 1 (100.00%) Mentoring
1 1 (100.00%) Coaching

TDD
Co-occurring IT Skills in Halifax 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 1 (100.00%) Finance
1 1 (100.00%) Games
Job Titles
1 1 (100.00%) Scrum Master
Processes & Methodologies
1 1 (100.00%) Agile Software Development
1 1 (100.00%) ATDD
1 1 (100.00%) Coaching
1 1 (100.00%) Continuous Integration
1 1 (100.00%) Kanban
1 1 (100.00%) Mentoring
1 1 (100.00%) Scrum
1 1 (100.00%) Test Automation
1 1 (100.00%) User Stories
1 1 (100.00%) Waterfall