Period
to 21 July 2017

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

Test-Driven Development (TDD)
Hertfordshire > Rickmansworth
6 months to
21 Jul 2017
Same period 2016 Same period 2015
Rank 17 14 47
Rank change year-on-year -3 +33 -28
Permanent jobs citing TDD 4 15 2
As % of all permanent IT jobs advertised in Rickmansworth 5.63% 10.00% 0.82%
As % of the Processes & Methodologies category 6.56% 10.34% 0.89%
Number of salaries quoted 4 15 2
Rickmansworth median annual salary £67,500 £42,500 £68,500
Median salary % change year-on-year +58.82% -37.96% +95.71%
10th Percentile £56,250 £41,250 £66,750
90th Percentile £83,125 £67,500 £70,250
Hertfordshire median annual salary £47,500 £53,750 £50,000
% change year-on-year -11.63% +7.50% -

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Rickmansworth with a requirement for process and methodology skills.

Process & Methodology Skills
Rickmansworth
Permanent job vacancies with a requirement for process and methodology skills 61 145 224
As % of all permanent IT job vacancies advertised in Rickmansworth 85.92% 96.67% 92.18%
Number of salaries quoted 58 135 210
Rickmansworth median annual salary £48,750 £57,500 £54,000
Median salary % change year-on-year -15.22% +6.48% +20.00%
10th Percentile £40,000 £31,250 £30,500
90th Percentile £77,500 £75,000 £67,500
Hertfordshire median annual salary £47,500 £47,500 £45,000
% change year-on-year - +5.56% -

TDD
Job Vacancy Trend in Rickmansworth

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

Job vacancy trend for TDD in Rickmansworth

TDD
Salary Trend in Rickmansworth

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

Salary trend for TDD in Rickmansworth

TDD
Salary Histogram in Rickmansworth

The salary distribution of IT jobs citing TDD in Rickmansworth over the 6 months to 21 July 2017.

Salary histogram for TDD in Rickmansworth

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

1 4 (100.00%) Java
1 4 (100.00%) Agile Software Development
2 2 (50.00%) Ajax
2 2 (50.00%) Subversion
2 2 (50.00%) Spring
2 2 (50.00%) JSF
2 2 (50.00%) Finance
2 2 (50.00%) Hibernate
2 2 (50.00%) Scrum
2 2 (50.00%) PL/SQL
2 2 (50.00%) SQL
2 2 (50.00%) J2EE
2 2 (50.00%) Oracle
2 2 (50.00%) JIRA
2 2 (50.00%) Erlang
2 2 (50.00%) Unit Testing
3 1 (25.00%) Line Management
3 1 (25.00%) Enterprise Architecture

TDD
Co-occurring IT Skills in Rickmansworth 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 2 (50.00%) JIRA
1 2 (50.00%) Subversion
General
1 2 (50.00%) Finance
Job Titles
1 4 (100.00%) Developer
1 4 (100.00%) Java Developer
2 2 (50.00%) Erlang Developer
3 1 (25.00%) Lead Developer
3 1 (25.00%) Lead Java Developer
3 1 (25.00%) Senior Developer
3 1 (25.00%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 2 (50.00%) Ajax
1 2 (50.00%) Hibernate
1 2 (50.00%) J2EE
1 2 (50.00%) JSF
1 2 (50.00%) Spring
Processes & Methodologies
1 4 (100.00%) Agile Software Development
2 2 (50.00%) Scrum
2 2 (50.00%) Unit Testing
3 1 (25.00%) Enterprise Architecture
3 1 (25.00%) Line Management
Programming Languages
1 4 (100.00%) Java
2 2 (50.00%) Erlang
2 2 (50.00%) PL/SQL
2 2 (50.00%) SQL
Vendors
1 2 (50.00%) Oracle