Period
to 26 February 2020

The following table provides summary statistics for contract job vacancies advertised in Osterley 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 26 February 2020 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)
Hounslow > Osterley
6 months to
26 Feb 2020
Same period 2019 Same period 2018
Rank 2 3 4
Rank change year-on-year +1 +1 0
Contract jobs citing TDD 2 12 10
As % of all contract IT jobs advertised in Osterley 40.00% 42.86% 34.48%
As % of the Processes & Methodologies category 40.00% 48.00% 34.48%
Number of daily rates quoted 3 7 10
Osterley median daily rate £583 £575 £475
Median daily rate % change year-on-year +1.30% +21.05% -
10th Percentile £579 £500 £393
90th Percentile £592 £588 £526
Hounslow median daily rate £530 £550 £525
% change year-on-year -3.64% +4.76% -
Number of hourly rates quoted 0 0 0
Osterley median hourly rate - - -
Hounslow 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 Osterley with a requirement for process or methodology skills.

All Process and Methodology Skills
Osterley
Contract vacancies with a requirement for process or methodology skills 5 25 29
As % of all contract IT jobs advertised in Osterley 100.00% 89.29% 100.00%
Number of daily rates quoted 5 16 21
Osterley median daily rate £583 £500 £500
Median daily rate % change year-on-year +16.50% - +14.29%
10th Percentile £516 £300 £255
90th Percentile £628 £588 £585
Hounslow median daily rate £474 £498 £500
% change year-on-year -4.77% -0.50% +17.65%
Number of hourly rates quoted 0 0 0
Osterley median hourly rate - - -
Hounslow median hourly rate £17.25 £26.25 £33.00
% change year-on-year -34.29% -20.45% +72.55%

TDD
Job Vacancy Trend in Osterley

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

Job vacancy trend for TDD in Osterley

TDD
Contractor Daily Rate Trend in Osterley

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

Contractor daily rate trend for TDD in Osterley

For the 6 months to 26 February 2020, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Osterley region with a requirement for TDD.

1 2 (100.00%) Agile Software Development
1 2 (100.00%) Pair Programming
2 1 (50.00%) Advertising
2 1 (50.00%) Scrum
2 1 (50.00%) Java
2 1 (50.00%) JavaScript
2 1 (50.00%) Unit Testing
2 1 (50.00%) Continuous Integration
2 1 (50.00%) Test Automation
2 1 (50.00%) BDD
2 1 (50.00%) Functional Testing
2 1 (50.00%) Data Analytics
2 1 (50.00%) Analytics
2 1 (50.00%) Jenkins
2 1 (50.00%) React
2 1 (50.00%) Continuous Delivery
2 1 (50.00%) Redux
2 1 (50.00%) Java 8

TDD
Co-occurring 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:

Development Applications
1 1 (50.00%) Jenkins
General
1 1 (50.00%) Advertising
Job Titles
1 2 (100.00%) Developer
2 1 (50.00%) Java Developer
2 1 (50.00%) React Developer
Libraries, Frameworks & Software Standards
1 1 (50.00%) React
1 1 (50.00%) Redux
Processes & Methodologies
1 2 (100.00%) Agile Software Development
1 2 (100.00%) Pair Programming
2 1 (50.00%) Analytics
2 1 (50.00%) BDD
2 1 (50.00%) Continuous Delivery
2 1 (50.00%) Continuous Integration
2 1 (50.00%) Data Analytics
2 1 (50.00%) Functional Testing
2 1 (50.00%) Scrum
2 1 (50.00%) Test Automation
2 1 (50.00%) Unit Testing
Programming Languages
1 1 (50.00%) Java
1 1 (50.00%) Java 8
1 1 (50.00%) JavaScript