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

Test-Driven Development (TDD)
Manchester / Stockport
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 14 13 -
Rank change year-on-year -1 -  
Contract jobs citing TDD 1 3 0
As % of all contract IT jobs advertised in Stockport 3.03% 6.52% -
As % of the Processes & Methodologies category 3.70% 6.98% -
Number of daily rates quoted 0 3 0
Median daily rate - £425 -
UK excluding London median daily rate £400 £400 £375
% change year-on-year - +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £45.75 £39.25
% change year-on-year -14.75% +16.56%  

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 Stockport with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Stockport
Contract job vacancies with a requirement for process and methodology skills 27 43 8
As % of all contract IT job vacancies advertised in Stockport 81.82% 93.48% 44.44%
Number of daily rates quoted 9 37 6
Median daily rate £350 £400 £330
Median daily rate % change year-on-year -12.50% +21.21%  
90% offered a daily rate of more than £275 £350 £299
10% offered a daily rate of more than £458 £530 £342
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 10 0 0
Median hourly rate £40.00 - -
UK excluding London median hourly rate £35.75 £38.00 £30.00
% change year-on-year -5.92% +26.66%  

TDD
Job Vacancy Trend in Stockport

The job posting trend of jobs advertised in Stockport 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 Stockport

TDD
Contractor Daily Rate Trend in Stockport

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

Contractor daily rate trend for TDD in Stockport

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

1 9 (100.00%) Agile Software Development
2 8 (88.89%) JavaScript
3 6 (66.67%) Node.js
4 5 (55.56%) Kanban
4 5 (55.56%) BDD
4 5 (55.56%) CSS
4 5 (55.56%) Software Engineering
5 4 (44.44%) SQL
5 4 (44.44%) C#
5 4 (44.44%) HTML
5 4 (44.44%) Java
6 3 (33.33%) .NET
6 3 (33.33%) MySQL
6 3 (33.33%) Linux
6 3 (33.33%) MVC
6 3 (33.33%) PostgreSQL
6 3 (33.33%) Scrum
6 3 (33.33%) JIRA
6 3 (33.33%) Red Hat
6 3 (33.33%) Continuous Integration
6 3 (33.33%) Red Hat Enterprise Linux
6 3 (33.33%) Git (software)
6 3 (33.33%) MongoDB
6 3 (33.33%) Confluence
6 3 (33.33%) Open Source
6 3 (33.33%) AngularJS
6 3 (33.33%) REST
6 3 (33.33%) NoSQL
6 3 (33.33%) SDLC
6 3 (33.33%) Cucumber

TDD
Co-occurring IT Skills in Stockport 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 3 (33.33%) Confluence
Cloud Services
1 3 (33.33%) Slack
2 1 (11.11%) Amazon AWS
2 1 (11.11%) AWS CloudFormation
2 1 (11.11%) AWS Elastic Beanstalk
Database & Business Intelligence
1 3 (33.33%) MongoDB
1 3 (33.33%) MySQL
1 3 (33.33%) NoSQL
1 3 (33.33%) PostgreSQL
2 2 (22.22%) Apache Cassandra
Development Applications
1 3 (33.33%) Cucumber
1 3 (33.33%) Git (software)
1 3 (33.33%) JIRA
2 2 (22.22%) Jasmine
2 2 (22.22%) Jenkins
2 2 (22.22%) JUnit
3 1 (11.11%) gulp
3 1 (11.11%) Selenium
General
1 1 (11.11%) Finance
Job Titles
1 7 (77.78%) Developer
2 3 (33.33%) Digital Developer
2 3 (33.33%) JavaScript Developer
3 1 (11.11%) Java Developer
3 1 (11.11%) Node.js Developer
Libraries, Frameworks & Software Standards
1 6 (66.67%) Node.js
2 5 (55.56%) CSS
3 4 (44.44%) HTML
4 3 (33.33%) .NET
4 3 (33.33%) AngularJS
4 3 (33.33%) REST
5 2 (22.22%) ASP.NET
5 2 (22.22%) Express
5 2 (22.22%) Hibernate
5 2 (22.22%) NHibernate
5 2 (22.22%) Spring
6 1 (11.11%) .NET Core
6 1 (11.11%) ASP.NET MVC
6 1 (11.11%) ASP.NET Web API
6 1 (11.11%) jQuery
6 1 (11.11%) OpenID
6 1 (11.11%) RESTful
6 1 (11.11%) Sass
Operating Systems
1 3 (33.33%) Linux
1 3 (33.33%) Red Hat Enterprise Linux
2 1 (11.11%) Android
2 1 (11.11%) Apple iOS
Processes & Methodologies
1 9 (100.00%) Agile Software Development
2 5 (55.56%) BDD
2 5 (55.56%) Kanban
2 5 (55.56%) Software Engineering
3 3 (33.33%) Continuous Integration
3 3 (33.33%) MVC
3 3 (33.33%) Open Source
3 3 (33.33%) Scrum
3 3 (33.33%) SDLC
4 2 (22.22%) API Design
4 2 (22.22%) OO
4 2 (22.22%) Responsive Web Design
4 2 (22.22%) SOLID
4 2 (22.22%) Web Design
4 2 (22.22%) Web Development
5 1 (11.11%) Automated Testing
5 1 (11.11%) Progressive Enhancement
5 1 (11.11%) Refactoring
5 1 (11.11%) SMACSS
5 1 (11.11%) Unit Testing
Programming Languages
1 8 (88.89%) JavaScript
2 4 (44.44%) C#
2 4 (44.44%) Java
2 4 (44.44%) SQL
3 2 (22.22%) C++
Qualifications
1 1 (11.11%) BPSS Clearance
Quality Assurance & Compliance
1 1 (11.11%) QA
System Software
1 1 (11.11%) Docker
Vendors
1 3 (33.33%) Red Hat