Period
to 23 July 2017

The following table provides summary statistics for contract job vacancies advertised in Kent with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 23 July 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)
South East > Kent
6 months to
23 Jul 2017
Same period 2016 Same period 2015
Rank 21 18 22
Rank change year-on-year -3 +4 -7
Contract jobs citing TDD 45 69 51
As % of all contract IT jobs advertised in Kent 8.33% 8.97% 9.21%
As % of the Processes & Methodologies category 9.98% 11.46% 12.14%
Number of daily rates quoted 42 63 47
Kent median daily rate £345 £350 £338
Median daily rate % change year-on-year -1.43% +3.70% -20.59%
10th Percentile £314 £325 £310
90th Percentile £400 £775 £500
South East median daily rate £425 £410 £400
% change year-on-year +3.66% +2.50% +6.67%
Number of hourly rates quoted 0 0 0
Kent median hourly rate - - -
South East median hourly rate £42.50 £43.00 £47.50
% change year-on-year -1.16% -9.47% +18.75%

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 Kent with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Kent
Contract job vacancies with a requirement for process and methodology skills 451 602 420
As % of all contract IT job vacancies advertised in Kent 83.52% 78.28% 75.81%
Number of daily rates quoted 326 439 232
Kent median daily rate £375 £375 £338
Median daily rate % change year-on-year - +11.11% -3.57%
10th Percentile £204 £200 £213
90th Percentile £550 £578 £519
South East median daily rate £420 £400 £380
% change year-on-year +5.00% +5.26% +4.83%
Number of hourly rates quoted 21 11 11
Kent median hourly rate £27.38 £40.00 £20.00
Median hourly rate % change year-on-year -31.55% +100.00% +14.29%
10th Percentile £13.00 £13.00 £11.25
90th Percentile £29.92 £175.00 £42.50
South East median hourly rate £20.00 £25.00 £22.50
% change year-on-year -20.00% +11.11% +7.14%

TDD
Job Vacancy Trend in Kent

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

Job vacancy trend for TDD in Kent

TDD
Contractor Daily Rate Trend in Kent

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

Contractor daily rate trend for TDD in Kent

TDD
Contractor Daily Rate Histogram in Kent

The daily rate distribution of IT jobs citing TDD in Kent over the 6 months to 23 July 2017.

Contractor daily rate histogram for TDD in Kent

TDD
Contract Job Locations in Kent

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Kent region over the 6 months to 23 July 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
West Malling +8 8 £343 -8.79%
Maidstone -7 5 £340 -2.86% 2
Tunbridge Wells +10 4 £350 +3.70% 1
Folkestone - 3 £325 -
TDD
South East

For the 6 months to 23 July 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 Kent region with a requirement for TDD.

1 41 (91.11%) .NET
2 40 (88.89%) C#
3 31 (68.89%) Web Services
4 29 (64.44%) LINQ
5 26 (57.78%) .NET Framework
6 25 (55.56%) JSON
7 24 (53.33%) XML
8 22 (48.89%) SQL
9 20 (44.44%) Multithreading
9 20 (44.44%) Team Foundation Server
9 20 (44.44%) Entity Framework
9 20 (44.44%) LINQ to SQL
9 20 (44.44%) Concurrent Programming
9 20 (44.44%) Multithreaded Programming
10 17 (37.78%) MVC
11 16 (35.56%) SQL Server
12 15 (33.33%) HTML
12 15 (33.33%) Agile Software Development
13 14 (31.11%) Algorithms
14 13 (28.89%) CSS
15 12 (26.67%) Data Management
15 12 (26.67%) ASP.NET Web API
15 12 (26.67%) Sitecore
16 10 (22.22%) Git (software)
17 9 (20.00%) MVVM
17 9 (20.00%) Finance
18 8 (17.78%) CMS
18 8 (17.78%) Sitecore CMS
18 8 (17.78%) WCF
19 7 (15.56%) SQL Server 2012

TDD
Co-occurring IT Skills in Kent 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 8 (17.78%) CMS
1 8 (17.78%) Sitecore CMS
2 6 (13.33%) IIS
3 1 (2.22%) Apache
3 1 (2.22%) Confluence
3 1 (2.22%) GlassFish
3 1 (2.22%) JBoss
3 1 (2.22%) Tomcat
Communications & Networking
1 4 (8.89%) HTTP
2 1 (2.22%) Intranet
2 1 (2.22%) Unified Communications
Database & Business Intelligence
1 16 (35.56%) SQL Server
2 7 (15.56%) SQL Server 2012
3 3 (6.67%) Oracle Database
3 3 (6.67%) Oracle Database 11g
3 3 (6.67%) Oracle Database 12c
4 2 (4.44%) MySQL
4 2 (4.44%) NoSQL
Development Applications
1 20 (44.44%) Team Foundation Server
2 10 (22.22%) Git (software)
3 6 (13.33%) ReSharper
4 4 (8.89%) Cucumber
4 4 (8.89%) Selenium
5 1 (2.22%) IntelliJ
5 1 (2.22%) Jenkins
5 1 (2.22%) JIRA
5 1 (2.22%) JIRA Agile
5 1 (2.22%) jMock
5 1 (2.22%) JUnit
5 1 (2.22%) Maven
5 1 (2.22%) Mockito
General
1 9 (20.00%) Finance
2 5 (11.11%) Advertising
3 1 (2.22%) Banking
Job Titles
1 40 (88.89%) Developer
2 34 (75.56%) .NET Developer
3 23 (51.11%) C# .NET Developer
3 23 (51.11%) C# Developer
4 6 (13.33%) Sitecore Developer
5 4 (8.89%) Tester
6 3 (6.67%) C# WPF Developer
6 3 (6.67%) Software Tester
6 3 (6.67%) SQL Developer
6 3 (6.67%) WPF Developer
7 2 (4.44%) Automation Tester
7 2 (4.44%) Mobile Tester
7 2 (4.44%) PHP Developer
7 2 (4.44%) PHP Laravel Developer
8 1 (2.22%) Contracts Manager
8 1 (2.22%) Development Manager
8 1 (2.22%) Java Developer
8 1 (2.22%) MySQL Developer
8 1 (2.22%) Senior Manager
8 1 (2.22%) Software Developer
Libraries, Frameworks & Software Standards
1 41 (91.11%) .NET
2 31 (68.89%) Web Services
3 29 (64.44%) LINQ
4 26 (57.78%) .NET Framework
5 25 (55.56%) JSON
6 24 (53.33%) XML
7 20 (44.44%) Entity Framework
7 20 (44.44%) LINQ to SQL
8 15 (33.33%) HTML
9 13 (28.89%) CSS
10 12 (26.67%) ASP.NET Web API
11 8 (17.78%) WCF
12 6 (13.33%) AngularJS
12 6 (13.33%) ASP.NET
12 6 (13.33%) Backbone.js
12 6 (13.33%) KnockoutJS
13 4 (8.89%) .NET Core
13 4 (8.89%) ASP.NET MVC
14 3 (6.67%) RESTful
14 3 (6.67%) WPF
Miscellaneous
1 14 (31.11%) Algorithms
2 4 (8.89%) N-Tier
3 3 (6.67%) Computer Science
3 3 (6.67%) Mobile App
4 2 (4.44%) Greenfield Project
5 1 (2.22%) Data Centre
5 1 (2.22%) Fintech
5 1 (2.22%) Mobile Banking
5 1 (2.22%) PMI
Operating Systems
1 6 (13.33%) Windows
1 6 (13.33%) Windows Server
2 3 (6.67%) Android
2 3 (6.67%) Apple iOS
Processes & Methodologies
1 20 (44.44%) Concurrent Programming
1 20 (44.44%) Multithreaded Programming
1 20 (44.44%) Multithreading
2 17 (37.78%) MVC
3 15 (33.33%) Agile Software Development
4 12 (26.67%) Data Management
5 9 (20.00%) MVVM
6 7 (15.56%) E-Commerce
7 6 (13.33%) OWASP
7 6 (13.33%) Prototyping
7 6 (13.33%) Scrum
7 6 (13.33%) Software Architecture
7 6 (13.33%) Web Development
8 5 (11.11%) BDD
9 4 (8.89%) Change Control
9 4 (8.89%) Continuous Integration
9 4 (8.89%) OO
9 4 (8.89%) Refactoring
9 4 (8.89%) Regression Testing
10 3 (6.67%) Functional Testing
Programming Languages
1 40 (88.89%) C#
2 22 (48.89%) SQL
3 6 (13.33%) JavaScript
4 3 (6.67%) PHP
5 1 (2.22%) Java
5 1 (2.22%) LINC
Qualifications
1 3 (6.67%) Degree
2 1 (2.22%) PMI Certification
2 1 (2.22%) PRINCE2 Practitioner
Quality Assurance & Compliance
1 1 (2.22%) Cyber Essentials
1 1 (2.22%) PCI DSS
1 1 (2.22%) QA
Vendors
1 12 (26.67%) Sitecore
2 7 (15.56%) Oracle
3 6 (13.33%) Microsoft
4 2 (4.44%) Xamarin