The following table provides summary statistics for contract job vacancies advertised in Canary Wharf with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 28 March 2017 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)
London / Canary Wharf
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 24 15 16
Rank change year-on-year -9 +1  
Contract jobs citing TDD 2 9 9
As % of all contract IT jobs advertised in Canary Wharf 1.52% 7.44% 7.69%
As % of the Processes & Methodologies category 1.69% 8.57% 8.65%
Number of daily rates quoted 2 6 8
Median daily rate £675 £613 £425
Median daily rate % change year-on-year +10.20% +44.11%  
90% offered a daily rate of more than £655 £485 £410
10% offered a daily rate of more than £695 £650 £710
UK excluding London median daily rate £405 £400 £375
% change year-on-year +1.12% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £45.75 £36.00
% change year-on-year -14.75% +27.08%  

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

Contract Process & Methodology Skills
Canary Wharf
Contract job vacancies with a requirement for process and methodology skills 118 105 104
As % of all contract IT job vacancies advertised in Canary Wharf 89.39% 86.78% 88.89%
Number of daily rates quoted 77 90 64
Median daily rate £550 £480 £500
Median daily rate % change year-on-year +14.58% -4.00%  
90% offered a daily rate of more than £375 £350 £375
10% offered a daily rate of more than £650 £650 £675
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £26.00 -
UK excluding London median hourly rate £36.00 £38.50 £30.20
% change year-on-year -6.49% +27.48%  

TDD
Job Vacancy Trend in Canary Wharf

The job posting trend of jobs advertised in Canary Wharf citing TDD as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Canary Wharf

TDD
Contractor Daily Rate Trend in Canary Wharf

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Canary Wharf.

Contractor daily rate trend for TDD in Canary Wharf

For the 6 months to 28 March 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 Canary Wharf region with a requirement for TDD.

1 2 (66.67%) JavaScript
1 2 (66.67%) Agile Software Development
1 2 (66.67%) Banking
1 2 (66.67%) HTML5
1 2 (66.67%) Finance
1 2 (66.67%) HTML
2 1 (33.33%) Java
2 1 (33.33%) C#
2 1 (33.33%) Migration
2 1 (33.33%) Mockito
2 1 (33.33%) BDD
2 1 (33.33%) Node.js
2 1 (33.33%) REST
2 1 (33.33%) CSS3
2 1 (33.33%) Gherkin
2 1 (33.33%) Business Transformation
2 1 (33.33%) AngularJS
2 1 (33.33%) Gradle
2 1 (33.33%) Jenkins
2 1 (33.33%) Low Latency
2 1 (33.33%) Procure-to-Pay
2 1 (33.33%) Docker
2 1 (33.33%) User Experience
2 1 (33.33%) Microservices
2 1 (33.33%) Spock
2 1 (33.33%) Solace
2 1 (33.33%) AWS Lambda
2 1 (33.33%) Spring
2 1 (33.33%) Maven
2 1 (33.33%) Korn

TDD
Co-occurring IT Skills in Canary Wharf 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 1 (33.33%) Amazon AWS
1 1 (33.33%) AWS Lambda
Development Applications
1 1 (33.33%) Git (software)
1 1 (33.33%) Gradle
1 1 (33.33%) Jenkins
1 1 (33.33%) JIRA
1 1 (33.33%) JUnit
1 1 (33.33%) Maven
1 1 (33.33%) Mockito
1 1 (33.33%) Spock
1 1 (33.33%) TeamCity
General
1 2 (66.67%) Banking
1 2 (66.67%) Finance
Job Titles
1 1 (33.33%) .NET Developer
1 1 (33.33%) Agile .NET Developer
1 1 (33.33%) Agile C# Developer
1 1 (33.33%) Agile Developer
1 1 (33.33%) AWS Developer
1 1 (33.33%) C# .NET Developer
1 1 (33.33%) C# Developer
1 1 (33.33%) Consultant
1 1 (33.33%) Developer
1 1 (33.33%) Functional Consultant
1 1 (33.33%) Java Engineer
1 1 (33.33%) JavaScript Engineer
1 1 (33.33%) SAP Consultant
1 1 (33.33%) SAP P2P Consultant
1 1 (33.33%) Senior .NET Developer
1 1 (33.33%) Senior Agile Developer
1 1 (33.33%) Senior C# .NET Developer
1 1 (33.33%) Senior C# Developer
1 1 (33.33%) Senior Developer
1 1 (33.33%) UI Engineer
Libraries, Frameworks & Software Standards
1 2 (66.67%) HTML
1 2 (66.67%) HTML5
2 1 (33.33%) .NET
2 1 (33.33%) AngularJS
2 1 (33.33%) CSS
2 1 (33.33%) CSS3
2 1 (33.33%) Gherkin
2 1 (33.33%) JMS
2 1 (33.33%) jQuery
2 1 (33.33%) JSON
2 1 (33.33%) Node.js
2 1 (33.33%) REST
2 1 (33.33%) SOAP
2 1 (33.33%) Spring
2 1 (33.33%) Web Services
2 1 (33.33%) XML
2 1 (33.33%) XSD
2 1 (33.33%) XSLT
Miscellaneous
1 1 (33.33%) User Experience
Operating Systems
1 1 (33.33%) Linux
1 1 (33.33%) Unix
Processes & Methodologies
1 2 (66.67%) Agile Software Development
2 1 (33.33%) BDD
2 1 (33.33%) Business Transformation
2 1 (33.33%) Feature Driven Development
2 1 (33.33%) Kanban
2 1 (33.33%) Low Latency
2 1 (33.33%) Microservices
2 1 (33.33%) Migration
2 1 (33.33%) Multithreading
2 1 (33.33%) Procure-to-Pay
Programming Languages
1 2 (66.67%) JavaScript
2 1 (33.33%) C#
2 1 (33.33%) Java
2 1 (33.33%) Korn
2 1 (33.33%) Shell Script
2 1 (33.33%) XPath
System Software
1 1 (33.33%) Docker
Vendors
1 1 (33.33%) SAP
1 1 (33.33%) Solace