The following table provides summary statistics for contract job vacancies advertised in Croydon 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 25 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.

3 months to
25 Mar 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
London / Croydon
Rank 19 20 21
Rank change year-on-year +1 +1  
Contract jobs citing TDD 10 17 2
As % of all contract IT jobs advertised in Croydon 5.68% 6.23% 1.72%
As % of the Processes & Methodologies category 6.76% 6.85% 1.98%
Number of daily rates quoted 9 15 1
Median daily rate £450 £400 £325
Median daily rate % change year-on-year +12.50% +23.07%  
UK excluding London median daily rate £405 £400 £375
% change year-on-year +1.25% +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 Croydon with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Croydon
Contract job vacancies with a requirement for process and methodology skills 148 248 101
As % of all contract IT job vacancies advertised in Croydon 84.09% 90.84% 87.07%
Number of daily rates quoted 93 214 84
Median daily rate £450 £425 £425
Median daily rate % change year-on-year +5.88% -  
90% offered a daily rate of more than £350 £323 £300
10% offered a daily rate of more than £640 £555 £500
UK excluding London median daily rate £410 £400 £400
% change year-on-year +2.50% +0.06%  
Number of hourly rates quoted 0 3 1
Median hourly rate - £21.00 £40.00
Median hourly rate % change year-on-year - -47.50%  
UK excluding London median hourly rate £36.00 £38.75 £30.00
% change year-on-year -7.09% +29.16%  

TDD
Job Vacancy Trend in Croydon

The job posting trend of jobs advertised in Croydon 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 Croydon

TDD
Contractor Daily Rate Trend in Croydon

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

Contractor daily rate trend for TDD in Croydon

TDD
Top 30 Related IT Skills in Croydon

For the 6 months to 25 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 Croydon region with a requirement for TDD.

1 21 (95.45%) Agile Software Development
2 18 (81.82%) BDD
3 13 (59.09%) Java
4 11 (50.00%) RESTful
5 9 (40.91%) SC Cleared
5 9 (40.91%) Security Cleared
5 9 (40.91%) Web Services
6 8 (36.36%) Pair Programming
7 7 (31.82%) Cucumber
7 7 (31.82%) REST
8 6 (27.27%) Scrum
8 6 (27.27%) JavaScript
9 5 (22.73%) Docker
9 5 (22.73%) DevOps
10 4 (18.18%) Microservices
10 4 (18.18%) OO
10 4 (18.18%) Finance
10 4 (18.18%) QA
10 4 (18.18%) GitHub
10 4 (18.18%) AngularJS
10 4 (18.18%) Scala
11 3 (13.64%) Kanban
11 3 (13.64%) Git (software)
11 3 (13.64%) CSS3
11 3 (13.64%) Node.js
11 3 (13.64%) HTML5
11 3 (13.64%) Spring MVC
11 3 (13.64%) Spring
11 3 (13.64%) Hibernate
11 3 (13.64%) HTML

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 (9.09%) CMS
2 1 (4.55%) Elasticsearch
Cloud Services
1 4 (18.18%) GitHub
Database & Business Intelligence
1 3 (13.64%) Relational Database
2 1 (4.55%) Big Data
Development Applications
1 7 (31.82%) Cucumber
2 3 (13.64%) Git (software)
2 3 (13.64%) Gradle
2 3 (13.64%) Grunt
2 3 (13.64%) gulp
2 3 (13.64%) Karma Test Runner
2 3 (13.64%) Protractor
3 2 (9.09%) FitNesse
3 2 (9.09%) Jasmine
3 2 (9.09%) JUnit
3 2 (9.09%) NUnit
3 2 (9.09%) RSpec
3 2 (9.09%) Selenium
4 1 (4.55%) Bower
4 1 (4.55%) Hudson
4 1 (4.55%) Jenkins
4 1 (4.55%) JIRA
General
1 4 (18.18%) Finance
Job Titles
1 16 (72.73%) Developer
2 4 (18.18%) Java Developer
2 4 (18.18%) Technical Leader
3 3 (13.64%) Angular Developer
3 3 (13.64%) Developer in Test
3 3 (13.64%) JavaScript Developer
3 3 (13.64%) Node.js Developer
4 2 (9.09%) Front End Developer (Client-Side Developer)
4 2 (9.09%) Scala Developer
4 2 (9.09%) Senior Developer
4 2 (9.09%) Software Developer
5 1 (4.55%) Agile Coach
5 1 (4.55%) Automation Tester
5 1 (4.55%) HTML CSS Developer
5 1 (4.55%) HTML Developer
5 1 (4.55%) Selenium Automation Tester
5 1 (4.55%) Selenium Tester
5 1 (4.55%) Tester
5 1 (4.55%) Web Automation Tester
5 1 (4.55%) Web Tester
Libraries, Frameworks & Software Standards
1 11 (50.00%) RESTful
2 9 (40.91%) Web Services
3 7 (31.82%) REST
4 4 (18.18%) AngularJS
5 3 (13.64%) CSS
5 3 (13.64%) CSS3
5 3 (13.64%) Hibernate
5 3 (13.64%) HTML
5 3 (13.64%) HTML5
5 3 (13.64%) Node.js
5 3 (13.64%) Spring
5 3 (13.64%) Spring Boot
5 3 (13.64%) Spring MVC
6 2 (9.09%) Apache CXF
6 2 (9.09%) jBPM
6 2 (9.09%) Play Framework
6 2 (9.09%) SOAP
6 2 (9.09%) Twitter Bootstrap
7 1 (4.55%) React
7 1 (4.55%) Semantic HTML
Processes & Methodologies
1 21 (95.45%) Agile Software Development
2 18 (81.82%) BDD
3 8 (36.36%) Pair Programming
4 6 (27.27%) Scrum
5 5 (22.73%) DevOps
6 4 (18.18%) Microservices
6 4 (18.18%) OO
7 3 (13.64%) Front End Development
7 3 (13.64%) Kanban
7 3 (13.64%) MVC
8 2 (9.09%) Automation Testing
8 2 (9.09%) Build Automation
8 2 (9.09%) Continuous Delivery
8 2 (9.09%) Continuous Integration
8 2 (9.09%) Open Source
8 2 (9.09%) Refactoring
8 2 (9.09%) Security Architecture
8 2 (9.09%) Software Engineering
8 2 (9.09%) Test Automation
9 1 (4.55%) Waterfall
Programming Languages
1 13 (59.09%) Java
2 6 (27.27%) JavaScript
3 4 (18.18%) Scala
4 1 (4.55%) ES6
Qualifications
1 9 (40.91%) SC Cleared
1 9 (40.91%) Security Cleared
Quality Assurance & Compliance
1 4 (18.18%) QA
2 2 (9.09%) SDET
System Software
1 5 (22.73%) Docker
Systems Management
1 2 (9.09%) Kubernetes
Croydon, Surrey
networx
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