Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Chiswick with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 20 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hounslow > Chiswick
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 24 32 35
Rank change year-on-year +8 +3 -14
Permanent jobs citing TDD 6 2 4
As % of all permanent IT jobs advertised in Chiswick 6.45% 1.59% 3.10%
As % of the Processes & Methodologies category 7.23% 1.77% 3.70%
Number of salaries quoted 6 2 4
Chiswick median annual salary £55,000 £56,250 £40,000
Median salary % change year-on-year -2.22% +40.63% -20.00%
10th Percentile £52,500 £36,125 £35,000
90th Percentile £57,500 £75,375 £49,375
Hounslow median annual salary £50,000 £66,250 £51,500
% change year-on-year -24.53% +28.64% -6.36%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Chiswick with a requirement for process or methodology skills.

All Process and Methodology Skills
Chiswick
Permanent vacancies with a requirement for process or methodology skills 83 113 108
As % of all permanent IT jobs advertised in Chiswick 89.25% 89.68% 83.72%
Number of salaries quoted 83 89 105
Chiswick median annual salary £55,000 £55,000 £45,000
Median salary % change year-on-year - +22.22% +5.88%
10th Percentile £40,700 £42,500 £29,750
90th Percentile £82,250 £77,500 £65,000
Hounslow median annual salary £51,000 £52,500 £47,500
% change year-on-year -2.86% +10.53% -9.52%

TDD
Job Vacancy Trend in Chiswick

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

Job vacancy trend for TDD in Chiswick

TDD
Salary Trend in Chiswick

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Chiswick.

Salary trend for TDD in Chiswick

For the 6 months to 20 November 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Chiswick region with a requirement for TDD.

1 6 (100.00%) Scrum
1 6 (100.00%) Agile Software Development
1 6 (100.00%) JIRA
1 6 (100.00%) Velocity
1 6 (100.00%) Continuous Integration
1 6 (100.00%) Kanban
1 6 (100.00%) Test Automation
1 6 (100.00%) ATDD

TDD
Co-occurring IT Skills in Chiswick 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 6 (100.00%) JIRA
Job Titles
1 6 (100.00%) Agile Scrum Master
1 6 (100.00%) Scrum Master
Libraries, Frameworks & Software Standards
1 6 (100.00%) Velocity
Processes & Methodologies
1 6 (100.00%) Agile Software Development
1 6 (100.00%) ATDD
1 6 (100.00%) Continuous Integration
1 6 (100.00%) Kanban
1 6 (100.00%) Scrum
1 6 (100.00%) Test Automation