The following table provides summary statistics for contract job vacancies advertised in Devon 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 29 June 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)
South West / Devon
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 39 22 31
Rank change year-on-year -17 +9  
Contract jobs citing TDD 3 14 9
As % of all contract IT jobs advertised in Devon 0.89% 6.01% 3.44%
As % of the Processes & Methodologies category 1.08% 7.57% 4.89%
Number of daily rates quoted 2 11 6
Median daily rate £419 £315 £410
Median daily rate % change year-on-year +32.93% -23.17%  
90% offered a daily rate of more than £407 £263 £269
10% offered a daily rate of more than £436 £389 £420
UK excluding London median daily rate £421 £413 £375
% change year-on-year +1.93% +10.00%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £32.50 -
UK excluding London median hourly rate £41.50 £40.00 £43.75
% change year-on-year +3.75% -8.57%  

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 Devon with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Devon
Contract job vacancies with a requirement for process and methodology skills 278 185 184
As % of all contract IT job vacancies advertised in Devon 82.49% 79.40% 70.23%
Number of daily rates quoted 722 437 372
Median daily rate £400 £363 £365
Median daily rate % change year-on-year +10.34% -0.68%  
90% offered a daily rate of more than £263 £290 £256
10% offered a daily rate of more than £475 £500 £485
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 52 48 9
Median hourly rate £35.00 £40.00 £19.46
Median hourly rate % change year-on-year -12.50% +105.60%  
90% offered a hourly rate of more than £24.25 £12.18 £11.25
10% offered a hourly rate of more than £46.13 £51.50 £36.75
UK excluding London median hourly rate £33.50 £28.00 £30.00
% change year-on-year +19.64% -6.66%  

TDD
Job Vacancy Trend in Devon

Job postings citing TDD as a percentage of all IT jobs advertised in Devon.

Job vacancy trend for TDD in Devon

TDD
Contractor Daily Rate Trend in Devon

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

Contractor daily rate trend for TDD in Devon

TDD
Contractor Hourly Rate Trend in Devon

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Devon.

Contractor hourly rate trend for TDD in Devon

TDD
Contract Job Locations in Devon

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Devon region over the 3 months to 29 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Plymouth -19 2 £413 -
TDD
South West

For the 6 months to 29 June 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 Devon region with a requirement for TDD.

1 5 (71.43%) Agile Software Development
1 5 (71.43%) HTML
1 5 (71.43%) CSS
1 5 (71.43%) SQL
1 5 (71.43%) Python
1 5 (71.43%) Jenkins
1 5 (71.43%) Docker
2 4 (57.14%) OO
2 4 (57.14%) Java
2 4 (57.14%) Continuous Integration
2 4 (57.14%) Git (software)
3 3 (42.86%) WCAG
3 3 (42.86%) SQLAlchemy
3 3 (42.86%) Subversion
3 3 (42.86%) PostgreSQL
3 3 (42.86%) OOA/OOD
3 3 (42.86%) J2EE
3 3 (42.86%) OOD
3 3 (42.86%) Flask
3 3 (42.86%) Continuous Deployment
3 3 (42.86%) RESTful
3 3 (42.86%) CSS3
4 2 (28.57%) BDD
4 2 (28.57%) Node.js
4 2 (28.57%) Software Testing
4 2 (28.57%) Software Engineering
4 2 (28.57%) HTML5
4 2 (28.57%) QA
5 1 (14.29%) jQuery
5 1 (14.29%) Test Automation

TDD
Co-occurring IT Skills in Devon 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 1 (14.29%) Elasticsearch
Database & Business Intelligence
1 3 (42.86%) PostgreSQL
2 1 (14.29%) MongoDB
2 1 (14.29%) Relational Database
2 1 (14.29%) RethinkDB
Development Applications
1 5 (71.43%) Jenkins
2 4 (57.14%) Git (software)
3 3 (42.86%) Subversion
4 1 (14.29%) Cucumber
4 1 (14.29%) Jasmine
4 1 (14.29%) Mocha
4 1 (14.29%) Vagrant
General
1 1 (14.29%) Games
Job Titles
1 7 (100.00%) Developer
2 2 (28.57%) Node.js Developer
2 2 (28.57%) Software Developer
3 1 (14.29%) Full Stack Developer
3 1 (14.29%) Python Developer
Libraries, Frameworks & Software Standards
1 5 (71.43%) CSS
1 5 (71.43%) HTML
2 3 (42.86%) CSS3
2 3 (42.86%) Flask
2 3 (42.86%) J2EE
2 3 (42.86%) RESTful
2 3 (42.86%) SQLAlchemy
3 2 (28.57%) HTML5
3 2 (28.57%) Node.js
4 1 (14.29%) Chai
4 1 (14.29%) Express
4 1 (14.29%) jQuery
4 1 (14.29%) LESS
4 1 (14.29%) RabbitMQ
4 1 (14.29%) React
4 1 (14.29%) REST
4 1 (14.29%) Sass
4 1 (14.29%) XML
Miscellaneous
1 1 (14.29%) Analytical Skills
1 1 (14.29%) Greenfield Project
Operating Systems
1 1 (14.29%) Linux
1 1 (14.29%) Windows
Processes & Methodologies
1 5 (71.43%) Agile Software Development
2 4 (57.14%) Continuous Integration
2 4 (57.14%) OO
3 3 (42.86%) Continuous Deployment
3 3 (42.86%) OOA/OOD
3 3 (42.86%) OOD
4 2 (28.57%) BDD
4 2 (28.57%) Software Engineering
4 2 (28.57%) Software Testing
5 1 (14.29%) Continuous Delivery
5 1 (14.29%) DevOps
5 1 (14.29%) E-Commerce
5 1 (14.29%) Open Source
5 1 (14.29%) Responsive Web Design
5 1 (14.29%) Scrum
5 1 (14.29%) Test Automation
5 1 (14.29%) Translating Business Requirements
Programming Languages
1 5 (71.43%) Python
1 5 (71.43%) SQL
2 4 (57.14%) Java
3 1 (14.29%) C#
3 1 (14.29%) C++
3 1 (14.29%) JavaScript
Quality Assurance & Compliance
1 3 (42.86%) WCAG
2 2 (28.57%) QA
3 1 (14.29%) Disclosure Scotland
System Software
1 5 (71.43%) Docker