The following table provides summary statistics for contract job vacancies advertised in Knutsford 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)
Cheshire / Knutsford
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 10 7 9
Rank change year-on-year -3 +2  
Contract jobs citing TDD 10 18 10
As % of all contract IT jobs advertised in Knutsford 12.50% 25.00% 11.63%
As % of the Processes & Methodologies category 15.63% 27.27% 13.70%
Number of daily rates quoted 10 13 6
Median daily rate £395 £425 £366
Median daily rate % change year-on-year -7.05% +16.04%  
90% offered a daily rate of more than £360 £413 £288
10% offered a daily rate of more than £475 £477 £388
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 Knutsford with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Knutsford
Contract job vacancies with a requirement for process and methodology skills 64 66 73
As % of all contract IT job vacancies advertised in Knutsford 80.00% 91.67% 84.88%
Number of daily rates quoted 169 178 177
Median daily rate £400 £425 £375
Median daily rate % change year-on-year -5.88% +13.33%  
90% offered a daily rate of more than £325 £388 £301
10% offered a daily rate of more than £488 £500 £613
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 1 0 4
Median hourly rate £14.25 - £15.77
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 Knutsford

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

Job vacancy trend for TDD in Knutsford

TDD
Contractor Daily Rate Trend in Knutsford

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

Contractor daily rate trend for TDD in Knutsford

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 Knutsford region with a requirement for TDD.

1 9 (81.82%) Agile Software Development
1 9 (81.82%) Banking
2 8 (72.73%) Spring
2 8 (72.73%) Hibernate
2 8 (72.73%) Java
2 8 (72.73%) JPA
3 7 (63.64%) Git (software)
3 7 (63.64%) Relational Database
3 7 (63.64%) SQL
3 7 (63.64%) OO
3 7 (63.64%) RDBMS
4 6 (54.55%) Perforce
4 6 (54.55%) Test Automation
4 6 (54.55%) Unit Testing
5 5 (45.45%) JIRA
5 5 (45.45%) Scrum
5 5 (45.45%) Data Modelling
5 5 (45.45%) SOAP
5 5 (45.45%) Web Services
5 5 (45.45%) Oracle
5 5 (45.45%) JUnit
6 4 (36.36%) Finance
6 4 (36.36%) BDD
7 3 (27.27%) REST
7 3 (27.27%) Confluence
7 3 (27.27%) Data Protection
7 3 (27.27%) DevOps
7 3 (27.27%) Gradle
7 3 (27.27%) Jenkins
7 3 (27.27%) Java EE

TDD
Co-occurring IT Skills in Knutsford 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 (27.27%) Confluence
Applications
1 2 (18.18%) Microsoft Project
Database & Business Intelligence
1 7 (63.64%) RDBMS
1 7 (63.64%) Relational Database
2 2 (18.18%) Big Data
2 2 (18.18%) MongoDB
2 2 (18.18%) SQL Server
Development Applications
1 7 (63.64%) Git (software)
2 5 (45.45%) JIRA
2 5 (45.45%) JUnit
3 3 (27.27%) Gradle
3 3 (27.27%) Jenkins
4 2 (18.18%) Eclipse
4 2 (18.18%) IntelliJ
4 2 (18.18%) JProfiler
5 1 (9.09%) Grunt
5 1 (9.09%) gulp
5 1 (9.09%) SonarQube
General
1 9 (81.82%) Banking
2 4 (36.36%) Finance
Job Titles
1 9 (81.82%) Developer
2 8 (72.73%) Java Developer
3 3 (27.27%) Agile Developer
3 3 (27.27%) Agile Java Developer
4 2 (18.18%) Analyst
4 2 (18.18%) Banking Analyst
4 2 (18.18%) Banking Business Analyst
4 2 (18.18%) Business Analyst
5 1 (9.09%) Agile Business Analyst
5 1 (9.09%) Android Developer
5 1 (9.09%) HTML CSS Developer
5 1 (9.09%) HTML Developer
5 1 (9.09%) Java Android Developer
5 1 (9.09%) JavaScript Developer
5 1 (9.09%) Node.js Developer
Libraries, Frameworks & Software Standards
1 8 (72.73%) Hibernate
1 8 (72.73%) JPA
1 8 (72.73%) Spring
2 5 (45.45%) SOAP
2 5 (45.45%) Web Services
3 3 (27.27%) Ajax
3 3 (27.27%) Java EE
3 3 (27.27%) JSON
3 3 (27.27%) REST
3 3 (27.27%) Spring Boot
4 2 (18.18%) J2EE
4 2 (18.18%) jQuery
4 2 (18.18%) XML
4 2 (18.18%) XSLT
5 1 (9.09%) Android SDK
5 1 (9.09%) CSS
5 1 (9.09%) CSS3
5 1 (9.09%) HTML
5 1 (9.09%) HTML5
5 1 (9.09%) Node.js
Operating Systems
1 1 (9.09%) Android
Processes & Methodologies
1 9 (81.82%) Agile Software Development
2 7 (63.64%) OO
3 6 (54.55%) Test Automation
3 6 (54.55%) Unit Testing
4 5 (45.45%) Data Modelling
4 5 (45.45%) Scrum
5 4 (36.36%) BDD
6 3 (27.27%) Data Protection
6 3 (27.27%) DevOps
7 2 (18.18%) Business Analysis
7 2 (18.18%) Continuous Integration
7 2 (18.18%) Kanban
7 2 (18.18%) RAD
7 2 (18.18%) Stakeholder Management
7 2 (18.18%) User Stories
8 1 (9.09%) Android Development
8 1 (9.09%) Responsive Web Design
8 1 (9.09%) Web Development
Programming Languages
1 8 (72.73%) Java
2 7 (63.64%) SQL
3 3 (27.27%) JavaScript
Vendors
1 6 (54.55%) Perforce
2 5 (45.45%) Oracle
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