The following table provides summary statistics for contract job vacancies advertised in Bristol 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)
South West / Bristol
Rank 37 40 58
Rank change year-on-year +3 +18  
Contract jobs citing TDD 33 32 14
As % of all contract IT jobs advertised in Bristol 4.01% 3.54% 1.67%
As % of the Processes & Methodologies category 5.03% 4.31% 2.13%
Number of daily rates quoted 23 23 11
Median daily rate £425 £375 £375
Median daily rate % change year-on-year +13.33% -  
90% offered a daily rate of more than £313 £325 £330
10% offered a daily rate of more than £450 £448 £400
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 Bristol with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Bristol
Contract job vacancies with a requirement for process and methodology skills 656 742 658
As % of all contract IT job vacancies advertised in Bristol 79.71% 81.99% 78.43%
Number of daily rates quoted 445 533 477
Median daily rate £388 £375 £388
Median daily rate % change year-on-year +3.33% -3.22%  
90% offered a daily rate of more than £263 £282 £275
10% offered a daily rate of more than £525 £493 £509
UK excluding London median daily rate £410 £400 £400
% change year-on-year +2.50% +0.06%  
Number of hourly rates quoted 22 27 9
Median hourly rate £37.50 £39.00 £41.00
Median hourly rate % change year-on-year -3.84% -4.87%  
90% offered a hourly rate of more than £11.00 £31.00 £13.70
10% offered a hourly rate of more than £47.50 £50.00 £55.00
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 Bristol

The job posting trend of jobs advertised in Bristol 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 Bristol

TDD
Contractor Daily Rate Trend in Bristol

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

Contractor daily rate trend for TDD in Bristol

TDD
Contractor Daily Rate Histogram in Bristol

The daily rate distribution of IT jobs citing TDD in Bristol over the 3 months to 25 March 2017.

Contractor daily rate histogram for TDD in Bristol

TDD
Top 30 Related IT Skills in Bristol

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 Bristol region with a requirement for TDD.

1 51 (65.38%) Agile Software Development
2 31 (39.74%) JavaScript
3 30 (38.46%) C#
4 26 (33.33%) Java
5 25 (32.05%) .NET
6 23 (29.49%) HTML
7 20 (25.64%) SQL Server
8 19 (24.36%) BDD
9 18 (23.08%) AngularJS
9 18 (23.08%) Git (software)
9 18 (23.08%) ASP.NET
9 18 (23.08%) MVC
9 18 (23.08%) Scrum
9 18 (23.08%) DevOps
10 17 (21.79%) Continuous Integration
10 17 (21.79%) REST
11 16 (20.51%) Amazon AWS
11 16 (20.51%) CSS
11 16 (20.51%) Python
12 13 (16.67%) Microsoft
12 13 (16.67%) HTML5
12 13 (16.67%) Microservices
13 12 (15.38%) React
13 12 (15.38%) ASP.NET Web API
13 12 (15.38%) Node.js
13 12 (15.38%) Microsoft Azure
13 12 (15.38%) TeamCity
13 12 (15.38%) XML
13 12 (15.38%) Finance
13 12 (15.38%) Spring

TDD
Top Related IT Skills in Bristol 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 7 (8.97%) SharePoint
2 5 (6.41%) Confluence
3 4 (5.13%) Elasticsearch
4 3 (3.85%) SharePoint 2013
5 1 (1.28%) CMS
5 1 (1.28%) EPiServer
5 1 (1.28%) Oracle Service Bus
5 1 (1.28%) Oracle SOA Suite
5 1 (1.28%) SharePoint 2010
5 1 (1.28%) Sitecore CMS
5 1 (1.28%) Tomcat
5 1 (1.28%) WebLogic
5 1 (1.28%) WordPress
Applications
1 5 (6.41%) MS Excel
Business Applications
1 4 (5.13%) SAP HR
2 2 (2.56%) Dynamics AX
2 2 (2.56%) Dynamics CRM
3 1 (1.28%) Oracle BPM
3 1 (1.28%) SAP Oil and Gas
Cloud Services
1 16 (20.51%) Amazon AWS
2 12 (15.38%) Microsoft Azure
3 7 (8.97%) GitHub
4 4 (5.13%) Cloud Computing
5 3 (3.85%) Amazon EC2
6 2 (2.56%) PaaS
7 1 (1.28%) IaaS
7 1 (1.28%) SaaS
Communications & Networking
1 5 (6.41%) HTTP
2 1 (1.28%) SSL
Database & Business Intelligence
1 20 (25.64%) SQL Server
2 7 (8.97%) SQL Server 2008
2 7 (8.97%) SQL Server 2012
3 6 (7.69%) NoSQL
4 3 (3.85%) Amazon DynamoDB
4 3 (3.85%) Hadoop
4 3 (3.85%) Relational Database
5 2 (2.56%) MySQL
6 1 (1.28%) Apache Cassandra
6 1 (1.28%) PerformancePoint
6 1 (1.28%) PostgreSQL
6 1 (1.28%) PowerPivot
6 1 (1.28%) SQL Server Analysis Services
6 1 (1.28%) SQL Server Integration Services
6 1 (1.28%) SQL Server Reporting Services
Development Applications
1 18 (23.08%) Git (software)
2 12 (15.38%) TeamCity
3 8 (10.26%) Jenkins
4 7 (8.97%) Visual Studio
5 6 (7.69%) JIRA
6 4 (5.13%) GoCD
6 4 (5.13%) Grunt
6 4 (5.13%) Maven
7 3 (3.85%) Cucumber
7 3 (3.85%) JUnit
7 3 (3.85%) Octopus Deploy
8 2 (2.56%) Ant
8 2 (2.56%) Bitbucket
8 2 (2.56%) Gradle
8 2 (2.56%) Jasmine
8 2 (2.56%) Mockito
8 2 (2.56%) NUnit
8 2 (2.56%) Selenium
8 2 (2.56%) Team Foundation Server
9 1 (1.28%) Mercurial
General
1 12 (15.38%) Finance
2 8 (10.26%) Banking
3 5 (6.41%) Advertising
4 2 (2.56%) Games
4 2 (2.56%) Marketing
5 1 (1.28%) Automotive
5 1 (1.28%) Electronics
5 1 (1.28%) International Banking
5 1 (1.28%) Manufacturing
5 1 (1.28%) Multimedia
5 1 (1.28%) Publishing
5 1 (1.28%) Telecoms
Job Titles
1 61 (78.21%) Developer
2 16 (20.51%) .NET Developer
2 16 (20.51%) Java Developer
3 8 (10.26%) C# Developer
3 8 (10.26%) Python Developer
4 6 (7.69%) Analyst
4 6 (7.69%) Angular Developer
4 6 (7.69%) Front End Developer (Client-Side Developer)
4 6 (7.69%) JavaScript Developer
4 6 (7.69%) Polyglot Developer
5 5 (6.41%) HTML Developer
5 5 (6.41%) UI Developer
6 4 (5.13%) Agile Developer
6 4 (5.13%) HR Analyst
6 4 (5.13%) Senior Developer
6 4 (5.13%) Software Engineer
6 4 (5.13%) Test Analyst
7 3 (3.85%) Test Leader
8 2 (2.56%) Agile Java Developer
8 2 (2.56%) Lead Developer
Libraries, Frameworks & Software Standards
1 25 (32.05%) .NET
2 23 (29.49%) HTML
3 18 (23.08%) AngularJS
3 18 (23.08%) ASP.NET
4 17 (21.79%) REST
5 16 (20.51%) CSS
6 13 (16.67%) HTML5
7 12 (15.38%) ASP.NET Web API
7 12 (15.38%) Node.js
7 12 (15.38%) React
7 12 (15.38%) Spring
7 12 (15.38%) XML
8 9 (11.54%) RESTful
8 9 (11.54%) WCF
9 8 (10.26%) SOAP
10 7 (8.97%) jQuery
10 7 (8.97%) RabbitMQ
11 6 (7.69%) Ajax
11 6 (7.69%) ASP.NET MVC
11 6 (7.69%) CSS3
Miscellaneous
1 10 (12.82%) User Experience
2 3 (3.85%) Blog
2 3 (3.85%) iPad
2 3 (3.85%) Public Cloud
3 2 (2.56%) Digital TV
3 2 (2.56%) STB
4 1 (1.28%) Analytical Skills
4 1 (1.28%) Data Structures
Operating Systems
1 6 (7.69%) Linux
2 4 (5.13%) Unix
2 4 (5.13%) Windows
3 2 (2.56%) Android
3 2 (2.56%) Apple iOS
4 1 (1.28%) Embedded Linux
Processes & Methodologies
1 51 (65.38%) Agile Software Development
2 19 (24.36%) BDD
3 18 (23.08%) DevOps
3 18 (23.08%) MVC
3 18 (23.08%) Scrum
4 17 (21.79%) Continuous Integration
5 13 (16.67%) Microservices
6 10 (12.82%) Unit Testing
7 9 (11.54%) Kanban
7 9 (11.54%) Waterfall
8 8 (10.26%) Front End Development
9 6 (7.69%) E-Commerce
9 6 (7.69%) Functional Testing
9 6 (7.69%) Non-Functional Testing
9 6 (7.69%) OO
9 6 (7.69%) Pair Programming
10 5 (6.41%) Continuous Improvement
10 5 (6.41%) Software Engineering
10 5 (6.41%) Test Scripting
10 5 (6.41%) Web Development
Programming Languages
1 31 (39.74%) JavaScript
2 30 (38.46%) C#
3 26 (33.33%) Java
4 16 (20.51%) Python
5 11 (14.10%) Scala
6 10 (12.82%) SQL
7 7 (8.97%) Ruby
8 4 (5.13%) C++
8 4 (5.13%) PowerShell
9 2 (2.56%) Bash Shell
9 2 (2.56%) C
9 2 (2.56%) Clojure
9 2 (2.56%) Go
9 2 (2.56%) Lua
9 2 (2.56%) PHP
9 2 (2.56%) T-SQL
9 2 (2.56%) VB.NET
10 1 (1.28%) Groovy
10 1 (1.28%) TypeScript
10 1 (1.28%) XPath
Qualifications
1 2 (2.56%) SC Cleared
1 2 (2.56%) Security Cleared
2 1 (1.28%) Degree
2 1 (1.28%) Microsoft Certification
Quality Assurance & Compliance
1 5 (6.41%) QA
System Software
1 5 (6.41%) Docker
2 4 (5.13%) LXC
Systems Management
1 4 (5.13%) Opscode Chef
2 1 (1.28%) Puppet
Vendors
1 13 (16.67%) Microsoft
2 5 (6.41%) Google
2 5 (6.41%) SAP
3 2 (2.56%) hybris
3 2 (2.56%) Sitecore
4 1 (1.28%) IBM
4 1 (1.28%) Oracle
4 1 (1.28%) Telerik