The following table provides summary statistics for contract job vacancies advertised in Norwich 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 30 April 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)
Norfolk / Norwich
3 months to
30 Apr 2017
Same period 2016 Same period 2015
Rank 11 15 -
Rank change year-on-year +4 -  
Contract jobs citing TDD 9 9 0
As % of all contract IT jobs advertised in Norwich 10.11% 6.98% -
As % of the Processes & Methodologies category 12.00% 8.65% -
Number of daily rates quoted 8 8 0
Median daily rate £450 £390 -
Median daily rate % change year-on-year +15.38% -  
UK excluding London median daily rate £400 £400 £380
% change year-on-year - +5.26%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.50 £42.75 £42.50
% change year-on-year -2.92% +0.58%  

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 Norwich with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Norwich
Contract job vacancies with a requirement for process and methodology skills 75 104 80
As % of all contract IT job vacancies advertised in Norwich 84.27% 80.62% 70.80%
Number of daily rates quoted 56 74 52
Median daily rate £450 £400 £396
Median daily rate % change year-on-year +12.50% +1.01%  
90% offered a daily rate of more than £350 £300 £238
10% offered a daily rate of more than £518 £550 £579
UK excluding London median daily rate £415 £400 £390
% change year-on-year +3.75% +2.56%  
Number of hourly rates quoted 0 1 10
Median hourly rate - £16.00 £22.50
Median hourly rate % change year-on-year - -28.88%  
UK excluding London median hourly rate £36.00 £36.00 £30.50
% change year-on-year - +18.03%  

TDD
Job Vacancy Trend in Norwich

The job posting trend of jobs advertised in Norwich 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 Norwich

TDD
Contractor Daily Rate Trend in Norwich

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

Contractor daily rate trend for TDD in Norwich

TDD
Contractor Daily Rate Histogram in Norwich

The daily rate distribution of IT jobs citing TDD in Norwich over the 3 months to 30 April 2017.

Contractor daily rate histogram for TDD in Norwich

For the 6 months to 30 April 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 Norwich region with a requirement for TDD.

1 10 (83.33%) Agile Software Development
2 8 (66.67%) C#
2 8 (66.67%) RESTful
2 8 (66.67%) Jenkins
3 7 (58.33%) Xamarin
3 7 (58.33%) Continuous Integration
3 7 (58.33%) BDD
3 7 (58.33%) XML
3 7 (58.33%) Scrum
4 5 (41.67%) SDLC
5 4 (33.33%) Mobile App
5 4 (33.33%) Apple iOS
5 4 (33.33%) JUnit
5 4 (33.33%) .NET
5 4 (33.33%) Java
5 4 (33.33%) JavaScript
5 4 (33.33%) Cucumber
5 4 (33.33%) Android
5 4 (33.33%) Team Foundation Server
5 4 (33.33%) Spring
5 4 (33.33%) MVC
5 4 (33.33%) Finance
6 3 (25.00%) Release Management
6 3 (25.00%) Java EE
6 3 (25.00%) JSON
6 3 (25.00%) QA
6 3 (25.00%) Pair Programming
6 3 (25.00%) Subversion
6 3 (25.00%) Test Automation
6 3 (25.00%) User Acceptance Testing

TDD
Co-occurring IT Skills in Norwich 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 (8.33%) WebSphere
Applications
1 3 (25.00%) Microsoft Office
1 3 (25.00%) MS Visio
Communications & Networking
1 1 (8.33%) HTTP
1 1 (8.33%) LDAP
1 1 (8.33%) SSL
1 1 (8.33%) TCP/IP
Database & Business Intelligence
1 3 (25.00%) MarkLogic
1 3 (25.00%) MySQL
1 3 (25.00%) NoSQL
1 3 (25.00%) Relational Database
2 1 (8.33%) SQL Server
2 1 (8.33%) SQL Server Integration Services
2 1 (8.33%) SQL Server Reporting Services
Development Applications
1 8 (66.67%) Jenkins
2 4 (33.33%) Cucumber
2 4 (33.33%) JUnit
2 4 (33.33%) Team Foundation Server
3 3 (25.00%) Appium
3 3 (25.00%) Calabash
3 3 (25.00%) Mockito
3 3 (25.00%) SpecFlow
3 3 (25.00%) Subversion
4 1 (8.33%) Git (software)
4 1 (8.33%) Maven
4 1 (8.33%) VSS/SourceSafe
General
1 4 (33.33%) Finance
2 2 (16.67%) Publishing
Job Titles
1 9 (75.00%) Developer
2 4 (33.33%) .NET Developer
2 4 (33.33%) Java Developer
3 2 (16.67%) Automation Tester
3 2 (16.67%) Test Automation Engineer
3 2 (16.67%) Test Engineer
3 2 (16.67%) Tester
3 2 (16.67%) Xamarin Developer
4 1 (8.33%) Analyst
4 1 (8.33%) Automation Test Analyst
4 1 (8.33%) Test Analyst
Libraries, Frameworks & Software Standards
1 8 (66.67%) RESTful
2 7 (58.33%) XML
3 4 (33.33%) .NET
3 4 (33.33%) Spring
4 3 (25.00%) AngularJS
4 3 (25.00%) Gherkin
4 3 (25.00%) Hibernate
4 3 (25.00%) Java EE
4 3 (25.00%) JMS
4 3 (25.00%) JSON
4 3 (25.00%) Web Services
5 2 (16.67%) HTML
5 2 (16.67%) REST
5 2 (16.67%) SOAP
5 2 (16.67%) XForms
5 2 (16.67%) XSLT
6 1 (8.33%) ASP.NET
6 1 (8.33%) ASP.NET MVC
6 1 (8.33%) jQuery
6 1 (8.33%) WCF
Miscellaneous
1 4 (33.33%) Mobile App
Operating Systems
1 4 (33.33%) Android
1 4 (33.33%) Apple iOS
Processes & Methodologies
1 10 (83.33%) Agile Software Development
2 7 (58.33%) BDD
2 7 (58.33%) Continuous Integration
2 7 (58.33%) Scrum
3 5 (41.67%) SDLC
4 4 (33.33%) MVC
5 3 (25.00%) Exploratory Testing
5 3 (25.00%) Functional Testing
5 3 (25.00%) Mentoring
5 3 (25.00%) Pair Programming
5 3 (25.00%) Project Management
5 3 (25.00%) Regression Testing
5 3 (25.00%) Release Management
5 3 (25.00%) Test Automation
5 3 (25.00%) User Acceptance Testing
6 2 (16.67%) Customer Requirements
6 2 (16.67%) OO
6 2 (16.67%) Unit Testing
6 2 (16.67%) User Stories
6 2 (16.67%) Waterfall
Programming Languages
1 8 (66.67%) C#
2 4 (33.33%) Java
2 4 (33.33%) JavaScript
3 3 (25.00%) Shell Script
4 1 (8.33%) SQL
4 1 (8.33%) T-SQL
Quality Assurance & Compliance
1 3 (25.00%) QA
Vendors
1 7 (58.33%) Xamarin
2 1 (8.33%) Microsoft
Norwich, Norfolk
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