The following table provides summary statistics for contract job vacancies advertised in Brighton 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 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)
East Sussex / Brighton
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 22 7 27
Rank change year-on-year -15 +20  
Contract jobs citing TDD 9 29 11
As % of all contract IT jobs advertised in Brighton 4.66% 15.18% 4.30%
As % of the Processes & Methodologies category 5.36% 18.71% 5.00%
Number of daily rates quoted 11 26 9
Median daily rate £450 £525 £363
Median daily rate % change year-on-year -14.28% +44.82%  
90% offered a daily rate of more than £180 £388 £309
10% offered a daily rate of more than £475 £563 £468
UK excluding London median daily rate £420 £413 £375
% change year-on-year +1.81% +10.00%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
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 Brighton with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Brighton
Contract job vacancies with a requirement for process and methodology skills 168 155 220
As % of all contract IT job vacancies advertised in Brighton 87.05% 81.15% 85.94%
Number of daily rates quoted 341 343 609
Median daily rate £363 £463 £420
Median daily rate % change year-on-year -21.62% +10.11%  
90% offered a daily rate of more than £213 £325 £300
10% offered a daily rate of more than £475 £588 £538
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 23 24 11
Median hourly rate £11.93 £21.36 £21.15
Median hourly rate % change year-on-year -44.13% +0.99%  
90% offered a hourly rate of more than £11.17 £10.60 £11.75
10% offered a hourly rate of more than £187.50 £37.50 £22.00
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

TDD
Job Vacancy Trend in Brighton

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

Job vacancy trend for TDD in Brighton

TDD
Contractor Daily Rate Trend in Brighton

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

Contractor daily rate trend for TDD in Brighton

TDD
Contractor Daily Rate Histogram in Brighton

The daily rate distribution of IT jobs citing TDD in Brighton over the 3 months to 28 June 2017.

Contractor daily rate histogram for TDD in Brighton

For the 6 months to 28 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 Brighton region with a requirement for TDD.

1 13 (72.22%) Agile Software Development
2 11 (61.11%) Continuous Integration
3 10 (55.56%) BDD
3 10 (55.56%) AngularJS
4 8 (44.44%) Node.js
4 8 (44.44%) Amazon AWS
4 8 (44.44%) Test Automation
4 8 (44.44%) JavaScript
4 8 (44.44%) AWS Lambda
5 7 (38.89%) Continuous Deployment
6 6 (33.33%) C#
6 6 (33.33%) Jenkins
7 5 (27.78%) HTML
7 5 (27.78%) Java
7 5 (27.78%) CSS
7 5 (27.78%) Angular 2
7 5 (27.78%) React
7 5 (27.78%) Mocha
8 4 (22.22%) Front End Development
8 4 (22.22%) Redux
8 4 (22.22%) Serverless Framework
8 4 (22.22%) Jasmine
8 4 (22.22%) RESTful
8 4 (22.22%) Software Engineering
9 3 (16.67%) Git (software)
9 3 (16.67%) Microsoft Azure
9 3 (16.67%) Open Source
9 3 (16.67%) Big Data
9 3 (16.67%) Functional Testing
9 3 (16.67%) TypeScript

TDD
Co-occurring IT Skills in Brighton 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 8 (44.44%) Amazon AWS
1 8 (44.44%) AWS Lambda
2 3 (16.67%) AWS CloudFormation
2 3 (16.67%) Microsoft Azure
3 2 (11.11%) Amazon EC2
3 2 (11.11%) Amazon SQS
Communications & Networking
1 2 (11.11%) MQTT
Database & Business Intelligence
1 3 (16.67%) Big Data
1 3 (16.67%) Data Warehouse
1 3 (16.67%) SQL Server
Development Applications
1 6 (33.33%) Jenkins
2 5 (27.78%) Mocha
3 4 (22.22%) Jasmine
4 3 (16.67%) Git (software)
5 2 (11.11%) Gradle
5 2 (11.11%) Maven
5 2 (11.11%) Selenium
5 2 (11.11%) TestNG
5 2 (11.11%) WebDriver
6 1 (5.56%) Grunt
6 1 (5.56%) Protractor
6 1 (5.56%) webpack
General
1 3 (16.67%) Finance
1 3 (16.67%) Games
2 2 (11.11%) Marketing
Job Titles
1 11 (61.11%) Developer
2 5 (27.78%) Full Stack Developer
3 3 (16.67%) Microsoft Developer
3 3 (16.67%) Software Engineer
4 2 (11.11%) Analyst
4 2 (11.11%) Angular Developer
4 2 (11.11%) Automation Test Analyst
4 2 (11.11%) AWS Developer
4 2 (11.11%) Node.js Developer
4 2 (11.11%) QA Analyst
4 2 (11.11%) QA Automation Analyst
4 2 (11.11%) QA Test Analyst
4 2 (11.11%) Test Analyst
5 1 (5.56%) .NET Developer
5 1 (5.56%) Front End Developer (Client-Side Developer)
5 1 (5.56%) Java Developer
5 1 (5.56%) JavaScript Engineer
5 1 (5.56%) Junior
5 1 (5.56%) Junior Developer
5 1 (5.56%) Quality Engineer
Libraries, Frameworks & Software Standards
1 10 (55.56%) AngularJS
2 8 (44.44%) Node.js
3 5 (27.78%) Angular 2
3 5 (27.78%) CSS
3 5 (27.78%) HTML
3 5 (27.78%) React
4 4 (22.22%) Redux
4 4 (22.22%) RESTful
4 4 (22.22%) Serverless Framework
5 3 (16.67%) .NET
5 3 (16.67%) ASP.NET
5 3 (16.67%) ASP.NET Web API
6 1 (5.56%) CSS3
6 1 (5.56%) Django
6 1 (5.56%) Ember.js
6 1 (5.56%) HTML5
6 1 (5.56%) LESS
6 1 (5.56%) Unity (Game Engine)
6 1 (5.56%) Unity DI Container
6 1 (5.56%) Unreal Engine
Miscellaneous
1 2 (11.11%) Fintech
1 2 (11.11%) Smart Home
Operating Systems
1 3 (16.67%) Linux
Processes & Methodologies
1 13 (72.22%) Agile Software Development
2 11 (61.11%) Continuous Integration
3 10 (55.56%) BDD
4 8 (44.44%) Test Automation
5 7 (38.89%) Continuous Deployment
6 4 (22.22%) Front End Development
6 4 (22.22%) Software Engineering
7 3 (16.67%) Data Analysis
7 3 (16.67%) Functional Testing
7 3 (16.67%) Open Source
7 3 (16.67%) Scrum
7 3 (16.67%) SOLID
8 2 (11.11%) Peer-to-Peer Lending
8 2 (11.11%) Prototyping
8 2 (11.11%) Rapid Prototyping
9 1 (5.56%) OO
9 1 (5.56%) OOP
9 1 (5.56%) Web Design
Programming Languages
1 8 (44.44%) JavaScript
2 6 (33.33%) C#
3 5 (27.78%) Java
4 3 (16.67%) C++
4 3 (16.67%) SQL
4 3 (16.67%) TypeScript
5 1 (5.56%) ES6
5 1 (5.56%) Python
Quality Assurance & Compliance
1 2 (11.11%) QA
Vendors
1 3 (16.67%) Microsoft