The table below looks at the statistics for TDD skills in IT contracts advertised for the Croydon region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 27 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
27 Feb 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
London / Croydon
Rank 20 18 21
Rank change year-on-year
-2 +3
Contract jobs citing TDD 12 19 3
As % of all contract IT jobs located in Croydon 5.69% 6.83% 2.75%
As % of the Processes & Methodologies category 6.74% 7.60% 3.37%
Number of daily rates quoted 10 16 1
Median daily rate £450 £400 £325
Median daily rate % change year-on-year
+12.50% +23.07%
UK excluding London median daily rate £413 £400 £375
% change year-on-year
+3.12% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £40.00 £34.50
% change year-on-year
-2.50% +15.94%

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

Processes & Methodologies Category
Croydon
Contract IT job ads with a match in the
Processes & Methodologies category
178 250 89
As % of all contract IT jobs located in Croydon 84.36% 89.93% 81.65%
Number of daily rates quoted 109 213 71
Median daily rate £450 £425 £400
Median daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £375 £322 £300
10% offered a daily rate of more than £600 £550 £500
UK excluding London median daily rate £408 £400 £399
% change year-on-year
+1.87% +0.29%
Number of hourly rates quoted 0 2 1
Median hourly rate - £20.00 £40.00
Median hourly rate % change year-on-year
- -50.00%
UK excluding London median hourly rate £36.00 £40.00 £29.00
% change year-on-year
-10.00% +37.93%

TDD
Jobs Demand Trend in Croydon

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

TDD Jobs Demand Trend in Croydon

TDD
Daily Rate Trend in Croydon

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

TDD Daily Rate Trend in Croydon

TDD
Top 30 Related IT Skills in Croydon

For the 6 months to 27 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 Croydon region with a requirement for TDD.

1 23 (95.83%) Agile Software Development
2 20 (83.33%) BDD
3 14 (58.33%) Java
4 11 (45.83%) RESTful
5 9 (37.50%) SC Cleared
5 9 (37.50%) Security Cleared
5 9 (37.50%) Web Services
5 9 (37.50%) Pair Programming
6 8 (33.33%) Scrum
6 8 (33.33%) Cucumber
6 8 (33.33%) REST
7 7 (29.17%) JavaScript
8 6 (25.00%) Docker
9 5 (20.83%) DevOps
9 5 (20.83%) Finance
9 5 (20.83%) Scala
10 4 (16.67%) Kanban
10 4 (16.67%) GitHub
10 4 (16.67%) AngularJS
10 4 (16.67%) Spring
10 4 (16.67%) QA
10 4 (16.67%) Hibernate
10 4 (16.67%) HTML
10 4 (16.67%) CSS
10 4 (16.67%) OO
10 4 (16.67%) Gradle
10 4 (16.67%) Microservices
11 3 (12.50%) Kubernetes
11 3 (12.50%) Spring Boot
11 3 (12.50%) gulp

TDD
Top Related IT Skills in Croydon 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 2 (8.33%) CMS
2 1 (4.17%) Elasticsearch
Cloud Services
1 4 (16.67%) GitHub
Database & Business Intelligence
1 3 (12.50%) Relational Database
2 1 (4.17%) Big Data
Development Applications
1 8 (33.33%) Cucumber
2 4 (16.67%) Gradle
3 3 (12.50%) Git (software)
3 3 (12.50%) Grunt
3 3 (12.50%) gulp
3 3 (12.50%) Karma Test Runner
3 3 (12.50%) Protractor
4 2 (8.33%) FitNesse
4 2 (8.33%) Jasmine
4 2 (8.33%) JUnit
4 2 (8.33%) NUnit
4 2 (8.33%) RSpec
4 2 (8.33%) Selenium
5 1 (4.17%) Bower
5 1 (4.17%) Hudson
5 1 (4.17%) Jenkins
5 1 (4.17%) JIRA
5 1 (4.17%) Maven
General
1 5 (20.83%) Finance
Job Titles
1 17 (70.83%) Developer
2 5 (20.83%) Technical Leader
3 4 (16.67%) Java Developer
4 3 (12.50%) Angular Developer
4 3 (12.50%) Developer in Test
4 3 (12.50%) JavaScript Developer
4 3 (12.50%) Node.js Developer
4 3 (12.50%) Scala Developer
5 2 (8.33%) Front End Developer (Client-Side Developer)
5 2 (8.33%) Senior Developer
5 2 (8.33%) Software Developer
6 1 (4.17%) Agile Coach
6 1 (4.17%) Automation Tester
6 1 (4.17%) HTML CSS Developer
6 1 (4.17%) HTML Developer
6 1 (4.17%) Selenium Automation Tester
6 1 (4.17%) Selenium Tester
6 1 (4.17%) Tester
6 1 (4.17%) Web Automation Tester
6 1 (4.17%) Web Tester
Libraries, Frameworks & Software Standards
1 11 (45.83%) RESTful
2 9 (37.50%) Web Services
3 8 (33.33%) REST
4 4 (16.67%) AngularJS
4 4 (16.67%) CSS
4 4 (16.67%) Hibernate
4 4 (16.67%) HTML
4 4 (16.67%) Spring
5 3 (12.50%) CSS3
5 3 (12.50%) HTML5
5 3 (12.50%) Node.js
5 3 (12.50%) Spring Boot
5 3 (12.50%) Spring MVC
6 2 (8.33%) Apache CXF
6 2 (8.33%) jBPM
6 2 (8.33%) Play Framework
6 2 (8.33%) SOAP
6 2 (8.33%) Twitter Bootstrap
7 1 (4.17%) RabbitMQ
7 1 (4.17%) React
Processes & Methodologies
1 23 (95.83%) Agile Software Development
2 20 (83.33%) BDD
3 9 (37.50%) Pair Programming
4 8 (33.33%) Scrum
5 5 (20.83%) DevOps
6 4 (16.67%) Kanban
6 4 (16.67%) Microservices
6 4 (16.67%) OO
7 3 (12.50%) Front End Development
7 3 (12.50%) MVC
8 2 (8.33%) Automation Testing
8 2 (8.33%) Build Automation
8 2 (8.33%) Continuous Delivery
8 2 (8.33%) Continuous Integration
8 2 (8.33%) Open Source
8 2 (8.33%) Refactoring
8 2 (8.33%) Security Architecture
8 2 (8.33%) Software Engineering
8 2 (8.33%) Test Automation
9 1 (4.17%) Waterfall
Programming Languages
1 14 (58.33%) Java
2 7 (29.17%) JavaScript
3 5 (20.83%) Scala
4 1 (4.17%) ES6
Qualifications
1 9 (37.50%) SC Cleared
1 9 (37.50%) Security Cleared
Quality Assurance & Compliance
1 4 (16.67%) QA
2 2 (8.33%) SDET
System Software
1 6 (25.00%) Docker
Systems Management
1 3 (12.50%) Kubernetes