Period
to 17 December 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 17 December 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
17 Dec 2017
Same period 2016 Same period 2015
Rank 13 23 23
Rank change year-on-year +10 0 +1
Contract jobs citing TDD 82 36 40
As % of all contract IT jobs advertised in Kent 15.21% 7.47% 7.35%
As % of the Processes & Methodologies category 19.11% 9.07% 9.05%
Number of daily rates quoted 70 25 33
Kent median daily rate £350 £375 £340
Median daily rate % change year-on-year -6.67% +10.29% -2.86%
10th Percentile £331 £350 £313
90th Percentile £656 £638 £450
South East median daily rate £425 £438 £400
% change year-on-year -2.86% +9.38% +6.67%
Number of hourly rates quoted 0 0 0
Kent median hourly rate - - -
South East median hourly rate £45.00 £36.50 £50.00
% change year-on-year +23.29% -27.00% +25.00%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Kent with a requirement for process or methodology skills.

All Process and Methodology Skills
Kent
Contract vacancies with a requirement for process or methodology skills 429 397 442
As % of all contract IT jobs advertised in Kent 79.59% 82.37% 81.25%
Number of daily rates quoted 317 276 290
Kent median daily rate £350 £353 £338
Median daily rate % change year-on-year -0.71% +4.44% -3.57%
10th Percentile £220 £195 £200
90th Percentile £625 £553 £488
South East median daily rate £425 £410 £400
% change year-on-year +3.66% +2.50% +6.67%
Number of hourly rates quoted 7 5 23
Kent median hourly rate £25.69 £14.00 £19.50
Median hourly rate % change year-on-year +83.50% -28.21% -5.66%
10th Percentile £25.30 £9.61 £12.25
90th Percentile £46.00 £21.95 £39.95
South East median hourly rate £24.02 £25.00 £27.25
% change year-on-year -3.92% -8.26% +55.71%

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 17 December 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 17 December 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
Maidstone +7 23 £350 - 2
West Malling 0 8 £340 -9.33% 2
Tunbridge Wells +8 3 £350 -26.32% 2
Dover - 3 £350 -
Faversham 0 1 £525 -
Tonbridge -1 1 £650 +4.00%
TDD
South East

For the 6 months to 17 December 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 70 (85.37%) .NET
2 69 (84.15%) C#
3 62 (75.61%) SQL Server
4 60 (73.17%) MVC
5 58 (70.73%) ASP.NET Web API
6 53 (64.63%) Web Services
7 52 (63.41%) Agile Software Development
8 44 (53.66%) HTML
9 42 (51.22%) .NET Framework
10 41 (50.00%) CSS
11 35 (42.68%) AngularJS
12 32 (39.02%) Continuous Integration
13 31 (37.80%) ASP.NET
14 28 (34.15%) Microsoft
15 27 (32.93%) Scrum
16 26 (31.71%) Oracle
16 26 (31.71%) ASP.NET MVC
16 26 (31.71%) MVVM
16 26 (31.71%) KnockoutJS
17 25 (30.49%) E-Commerce
18 24 (29.27%) SQL Server 2012
19 23 (28.05%) Backbone.js
19 23 (28.05%) Prototyping
19 23 (28.05%) N-Tier
19 23 (28.05%) Software Architecture
19 23 (28.05%) OWASP
20 22 (26.83%) Refactoring
20 22 (26.83%) Web Development
21 21 (25.61%) LINQ
21 21 (25.61%) Git (software)

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 16 (19.51%) CMS
1 16 (19.51%) Sitecore CMS
2 14 (17.07%) IIS
3 3 (3.66%) Confluence
4 1 (1.22%) Amazon Alexa
Business Applications
1 1 (1.22%) Summit
Cloud Services
1 11 (13.41%) Amazon AWS
2 7 (8.54%) Microsoft Azure
3 1 (1.22%) Cloud Computing
3 1 (1.22%) IaaS
3 1 (1.22%) npm
3 1 (1.22%) PaaS
Communications & Networking
1 3 (3.66%) Unified Communications
Database & Business Intelligence
1 62 (75.61%) SQL Server
2 24 (29.27%) SQL Server 2012
3 1 (1.22%) Relational Database
3 1 (1.22%) SQL Server 2014
Development Applications
1 21 (25.61%) Git (software)
2 14 (17.07%) ReSharper
3 7 (8.54%) Team Foundation Server
4 5 (6.10%) Visual Studio
5 4 (4.88%) JIRA
5 4 (4.88%) Subversion
6 3 (3.66%) Fiddler
6 3 (3.66%) Firebug
6 3 (3.66%) Selenium
7 2 (2.44%) Calabash
7 2 (2.44%) Visual Studio Team System
7 2 (2.44%) WebDriver
8 1 (1.22%) Bower
8 1 (1.22%) Cucumber
8 1 (1.22%) Grunt
8 1 (1.22%) gulp
8 1 (1.22%) Jasmine
8 1 (1.22%) Jenkins
8 1 (1.22%) Karma Test Runner
8 1 (1.22%) Moq
General
1 10 (12.20%) Finance
2 4 (4.88%) Advertising
2 4 (4.88%) Banking
3 3 (3.66%) Hindi Language
3 3 (3.66%) Japanese Language
Job Titles
1 71 (86.59%) Developer
2 63 (76.83%) .NET Developer
3 36 (43.90%) C# Developer
4 32 (39.02%) C# .NET Developer
5 9 (10.98%) Full Stack Developer
6 7 (8.54%) .NET Web Developer
6 7 (8.54%) Full Stack Web Developer
6 7 (8.54%) Web Developer
7 6 (7.32%) Senior .NET Developer
7 6 (7.32%) Senior Developer
8 5 (6.10%) AWS Engineer
8 5 (6.10%) Cloud Engineer
9 4 (4.88%) ASP.NET MVC Developer
10 3 (3.66%) HTML CSS Developer
10 3 (3.66%) HTML Developer
10 3 (3.66%) Project Manager
10 3 (3.66%) Sitecore Developer
11 2 (2.44%) Automation Tester
11 2 (2.44%) Cloud Developer
11 2 (2.44%) Tester
Libraries, Frameworks & Software Standards
1 70 (85.37%) .NET
2 58 (70.73%) ASP.NET Web API
3 53 (64.63%) Web Services
4 44 (53.66%) HTML
5 42 (51.22%) .NET Framework
6 41 (50.00%) CSS
7 35 (42.68%) AngularJS
8 31 (37.80%) ASP.NET
9 26 (31.71%) ASP.NET MVC
9 26 (31.71%) KnockoutJS
10 23 (28.05%) Backbone.js
11 21 (25.61%) LINQ
12 19 (23.17%) Entity Framework
13 18 (21.95%) WCF
14 12 (14.63%) RESTful
15 9 (10.98%) jQuery
16 7 (8.54%) ADO.NET
16 7 (8.54%) JSON
16 7 (8.54%) XML
17 6 (7.32%) LINQ to SQL
Miscellaneous
1 23 (28.05%) N-Tier
2 5 (6.10%) Greenfield Project
3 4 (4.88%) Enterprise Cloud
3 4 (4.88%) Mobile App
4 3 (3.66%) Cloud Native
4 3 (3.66%) Data Centre
4 3 (3.66%) PMI
5 2 (2.44%) Enterprise Software
6 1 (1.22%) User Experience
Operating Systems
1 16 (19.51%) Windows
2 14 (17.07%) Windows Server
3 1 (1.22%) Linux
3 1 (1.22%) Unix
Processes & Methodologies
1 60 (73.17%) MVC
2 52 (63.41%) Agile Software Development
3 32 (39.02%) Continuous Integration
4 27 (32.93%) Scrum
5 26 (31.71%) MVVM
6 25 (30.49%) E-Commerce
7 23 (28.05%) OWASP
7 23 (28.05%) Prototyping
7 23 (28.05%) Software Architecture
8 22 (26.83%) Refactoring
8 22 (26.83%) Web Development
9 13 (15.85%) Change Control
10 6 (7.32%) Concurrent Programming
10 6 (7.32%) Multithreaded Programming
10 6 (7.32%) Multithreading
10 6 (7.32%) OO
11 5 (6.10%) Continuous Delivery
11 5 (6.10%) SOA
12 4 (4.88%) Kanban
12 4 (4.88%) Pair Programming
Programming Languages
1 69 (84.15%) C#
2 16 (19.51%) JavaScript
3 11 (13.41%) SQL
4 9 (10.98%) VB.NET
5 8 (9.76%) Go
5 8 (9.76%) Python
5 8 (9.76%) Ruby
6 5 (6.10%) Java
7 1 (1.22%) T-SQL
Qualifications
1 3 (3.66%) PMI Certification
1 3 (3.66%) PRINCE2 Practitioner
2 1 (1.22%) Microsoft Certification
Quality Assurance & Compliance
1 3 (3.66%) Cyber Essentials
1 3 (3.66%) PCI DSS
2 1 (1.22%) PSD2
System Software
1 2 (2.44%) Docker
Vendors
1 28 (34.15%) Microsoft
2 26 (31.71%) Oracle
3 19 (23.17%) Sitecore
4 2 (2.44%) Xamarin
5 1 (1.22%) Capita
5 1 (1.22%) Rackspace