Period
to 21 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Middlesex 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 21 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
South East > Middlesex
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 24 18 49
Rank change year-on-year -6 +31 +14
Permanent jobs citing TDD 1 23 7
As % of all permanent IT jobs advertised in Middlesex 0.58% 9.39% 1.33%
As % of the Processes & Methodologies category 0.65% 11.00% 1.58%
Number of salaries quoted 4 20 7
Middlesex median annual salary £62,500 £52,500 £43,000
Median salary % change year-on-year +19.05% +22.09% -21.82%
10th Percentile £58,750 £36,250 £38,750
90th Percentile £66,250 £80,000 £52,800
South East median annual salary £47,250 £45,000 £45,000
% change year-on-year +5.00% - -

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 Middlesex with a requirement for process or methodology skills.

All Process and Methodology Skills
Middlesex
Permanent vacancies with a requirement for process or methodology skills 155 209 444
As % of all permanent IT jobs advertised in Middlesex 89.60% 85.31% 84.25%
Number of salaries quoted 109 179 353
Middlesex median annual salary £54,000 £50,000 £55,000
Median salary % change year-on-year +8.00% -9.09% +15.79%
10th Percentile £31,250 £31,100 £35,000
90th Percentile £80,750 £68,750 £72,500
South East median annual salary £45,000 £45,000 £45,000

TDD
Job Vacancy Trend in Middlesex

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

Job vacancy trend for TDD in Middlesex

TDD
Salary Trend in Middlesex

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

Salary trend for TDD in Middlesex

For the 6 months to 21 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 Middlesex region with a requirement for TDD.

1 1 (100.00%) Java
1 1 (100.00%) JavaScript
1 1 (100.00%) E-Commerce
1 1 (100.00%) Scrum
1 1 (100.00%) Extreme Programming
1 1 (100.00%) Agile Software Development
1 1 (100.00%) Pair Programming
1 1 (100.00%) Software Engineering
1 1 (100.00%) Kanban
1 1 (100.00%) Product Management
1 1 (100.00%) RESTful
1 1 (100.00%) Scala
1 1 (100.00%) High Availability
1 1 (100.00%) DevOps
1 1 (100.00%) Mentoring
1 1 (100.00%) User Experience

TDD
Co-occurring IT Skills in Middlesex 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:

Job Titles
1 1 (100.00%) Agile Developer
1 1 (100.00%) Agile Java Developer
1 1 (100.00%) Developer
1 1 (100.00%) Java Developer
Libraries, Frameworks & Software Standards
1 1 (100.00%) RESTful
Miscellaneous
1 1 (100.00%) User Experience
Processes & Methodologies
1 1 (100.00%) Agile Software Development
1 1 (100.00%) DevOps
1 1 (100.00%) E-Commerce
1 1 (100.00%) Extreme Programming
1 1 (100.00%) High Availability
1 1 (100.00%) Kanban
1 1 (100.00%) Mentoring
1 1 (100.00%) Pair Programming
1 1 (100.00%) Product Management
1 1 (100.00%) Scrum
1 1 (100.00%) Software Engineering
Programming Languages
1 1 (100.00%) Java
1 1 (100.00%) JavaScript
1 1 (100.00%) Scala