Period
to 5 July 2020

The following table provides summary statistics for contract job vacancies advertised in Hounslow 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 5 July 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)
West London > Hounslow
6 months to
5 Jul 2020
Same period 2019 Same period 2018
Rank 20 25 3
Rank change year-on-year +5 -22 +9
Contract jobs citing TDD 3 19 51
As % of all contract jobs advertised in Hounslow 2.46% 5.67% 16.50%
As % of the Processes & Methodologies category 2.70% 6.31% 18.21%
Number of daily rates quoted 5 15 47
Median daily rate £530 £565 £500
Median daily rate % change year-on-year -6.19% +13.00% +8.70%
10th Percentile £463 £517 £412
90th Percentile £586 £588 £613
West London median daily rate £535 £525 £525
% change year-on-year +1.90% - +10.53%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
West London 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 Hounslow with a requirement for process or methodology skills.

All Process and Methodology Skills
Hounslow
Contract vacancies with a requirement for process or methodology skills 111 301 280
As % of all contract IT jobs advertised in Hounslow 90.98% 89.85% 90.61%
Number of daily rates quoted 84 211 196
Median daily rate £514 £450 £474
Median daily rate % change year-on-year +14.17% -5.01% +18.44%
10th Percentile £198 £306 £239
90th Percentile £688 £588 £579
West London median daily rate £475 £463 £475
% change year-on-year +2.70% -2.63% +11.76%
Number of hourly rates quoted 5 10 13
Median hourly rate £26.00 £16.30 £25.00
Median hourly rate % change year-on-year +59.51% -34.80% -37.50%
10th Percentile £12.27 £11.15 £11.60
90th Percentile £35.31 £27.93 £43.60
Median hourly rate £29.98 £42.50 £37.50
% change year-on-year -29.47% +13.33% +7.14%

TDD
Job Vacancy Trend in Hounslow

Job postings citing TDD as a proportion of all IT jobs advertised in Hounslow.

Job vacancy trend for TDD in Hounslow

TDD
Contractor Daily Rate Trend in Hounslow

3-month moving average daily rate quoted in jobs citing TDD in Hounslow.

Daily rate trend for TDD in Hounslow

TDD
Contract Job Locations in Hounslow

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Hounslow region over the 6 months to 5 July 2020. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Feltham +7 2 £475 -13.64%
Osterley +3 1 £583 +1.30%
Isleworth - 1 £583 -
TDD
West London

For the 6 months to 5 July 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 Hounslow region with a requirement for TDD.

1 3 (100.00%) Test Automation
1 3 (100.00%) Continuous Delivery
1 3 (100.00%) Agile Software Development
2 2 (66.67%) Security Cleared
2 2 (66.67%) Continuous Deployment
2 2 (66.67%) Degree
2 2 (66.67%) Computer Science
2 2 (66.67%) User Stories
2 2 (66.67%) Low Latency
2 2 (66.67%) Docker
2 2 (66.67%) DevOps
2 2 (66.67%) Microservices
2 2 (66.67%) GitLab
2 2 (66.67%) RESTful
2 2 (66.67%) Open Source
2 2 (66.67%) RabbitMQ
2 2 (66.67%) Defensive Programming
2 2 (66.67%) High Availability
2 2 (66.67%) Kafka
2 2 (66.67%) GitHub
2 2 (66.67%) Web Services
2 2 (66.67%) Python
2 2 (66.67%) JavaScript
3 1 (33.33%) CSS
3 1 (33.33%) HTML
3 1 (33.33%) Java
3 1 (33.33%) Jenkins
3 1 (33.33%) React
3 1 (33.33%) Continuous Integration
3 1 (33.33%) SC Cleared

TDD
Co-occurring IT Skills in Hounslow 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:

Cloud Services
1 2 (66.67%) GitHub
Development Applications
1 2 (66.67%) GitLab
2 1 (33.33%) Jenkins
Job Titles
1 3 (100.00%) Developer
2 2 (66.67%) Python Developer
3 1 (33.33%) Full Stack Developer
3 1 (33.33%) Java Developer
3 1 (33.33%) React Developer
Libraries, Frameworks & Software Standards
1 2 (66.67%) Kafka
1 2 (66.67%) RabbitMQ
1 2 (66.67%) RESTful
1 2 (66.67%) Web Services
2 1 (33.33%) CSS
2 1 (33.33%) HTML
2 1 (33.33%) React
2 1 (33.33%) Redux
Processes & Methodologies
1 3 (100.00%) Agile Software Development
1 3 (100.00%) Continuous Delivery
1 3 (100.00%) Test Automation
2 2 (66.67%) Computer Science
2 2 (66.67%) Continuous Deployment
2 2 (66.67%) Defensive Programming
2 2 (66.67%) DevOps
2 2 (66.67%) High Availability
2 2 (66.67%) Low Latency
2 2 (66.67%) Microservices
2 2 (66.67%) Open Source
2 2 (66.67%) User Stories
3 1 (33.33%) Continuous Integration
3 1 (33.33%) Pair Programming
3 1 (33.33%) Software Engineering
Programming Languages
1 2 (66.67%) JavaScript
1 2 (66.67%) Python
2 1 (33.33%) Java
Qualifications
1 2 (66.67%) Degree
1 2 (66.67%) Security Cleared
2 1 (33.33%) SC Cleared
System Software
1 2 (66.67%) Docker