The table below looks at the statistics for TDD skills in IT contracts advertised for the Watford region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 21 February 2017 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
21 Feb 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
Hertfordshire / Watford
Rank 16 11 20
Rank change year-on-year
-5 +9
Contract jobs citing TDD 4 12 3
As % of all contract IT jobs located in Watford 3.57% 12.37% 2.68%
As % of the Processes & Methodologies category 4.21% 15.58% 4.00%
Number of daily rates quoted 4 5 2
Median daily rate £425 £450 £413
Median daily rate % change year-on-year
-5.55% +9.09%
UK excluding London median daily rate £419 £400 £375
% change year-on-year
+4.62% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £37.00 £40.00 £36.00
% change year-on-year
-7.50% +11.11%

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Watford region.

Processes & Methodologies Category
Watford
Contract IT job ads with a match in the
Processes & Methodologies category
95 77 75
As % of all contract IT jobs located in Watford 84.82% 79.38% 66.96%
Number of daily rates quoted 52 43 35
Median daily rate £450 £415 £375
Median daily rate % change year-on-year
+8.43% +10.66%
90% offered a daily rate of more than £327 £325 £235
10% offered a daily rate of more than £575 £500 £500
UK excluding London median daily rate £410 £400 £400
% change year-on-year
+2.50% -
Number of hourly rates quoted 0 3 5
Median hourly rate - £37.50 £19.25
Median hourly rate % change year-on-year
- +94.80%
UK excluding London median hourly rate £35.75 £40.00 £27.50
% change year-on-year
-10.62% +45.45%

TDD
Jobs Demand Trend in Watford

The demand trend of contract jobs across the Watford region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Watford

TDD
Daily Rate Trend in Watford

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Watford region.

TDD Daily Rate Trend in Watford

TDD
Top 21 Related IT Skills in Watford

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

1 8 (100.00%) Java
1 8 (100.00%) Agile Software Development
1 8 (100.00%) BDD
1 8 (100.00%) Continuous Delivery
2 5 (62.50%) MongoDB
2 5 (62.50%) Apache Cassandra
2 5 (62.50%) Apache Spark
2 5 (62.50%) Pair Programming
2 5 (62.50%) Continuous Integration
2 5 (62.50%) Finance
3 3 (37.50%) E-Commerce
3 3 (37.50%) JBehave
3 3 (37.50%) WebDriver
3 3 (37.50%) Cucumber
3 3 (37.50%) Software Testing
3 3 (37.50%) QA
3 3 (37.50%) Selenium
3 3 (37.50%) Haskell
3 3 (37.50%) Gherkin
3 3 (37.50%) ATDD
4 2 (25.00%) Scrum

TDD
Top Related IT Skills in Watford 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:

Application Platforms
1 5 (62.50%) Apache Spark
Database & Business Intelligence
1 5 (62.50%) Apache Cassandra
1 5 (62.50%) MongoDB
Development Applications
1 3 (37.50%) Cucumber
1 3 (37.50%) JBehave
1 3 (37.50%) Selenium
1 3 (37.50%) WebDriver
General
1 5 (62.50%) Finance
Job Titles
1 8 (100.00%) Developer
1 8 (100.00%) Java Developer
2 5 (62.50%) Agile Developer
2 5 (62.50%) Agile Java Developer
2 5 (62.50%) Senior Agile Developer
2 5 (62.50%) Senior Agile Java Developer
2 5 (62.50%) Senior Developer
2 5 (62.50%) Senior Java Developer
3 3 (37.50%) Developer in Test
Libraries, Frameworks & Software Standards
1 3 (37.50%) Gherkin
Processes & Methodologies
1 8 (100.00%) Agile Software Development
1 8 (100.00%) BDD
1 8 (100.00%) Continuous Delivery
2 5 (62.50%) Continuous Integration
2 5 (62.50%) Pair Programming
3 3 (37.50%) ATDD
3 3 (37.50%) E-Commerce
3 3 (37.50%) Software Testing
4 2 (25.00%) Scrum
Programming Languages
1 8 (100.00%) Java
2 3 (37.50%) Haskell
Quality Assurance & Compliance
1 3 (37.50%) QA