The table below looks at the statistics for TDD skills in IT contracts advertised for the Middlesex region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 29 September 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
29 Sep 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 14 27 24
Rank change year-on-year
+13 -3
Contract jobs citing TDD 14 2 4
As % of all contract IT jobs located in Middlesex 7.18% 1.03% 1.65%
As % of the Processes & Methodologies category 8.19% 1.24% 2.09%
Number of daily rates quoted 12 1 4
Median daily rate £438 £415 £406
Median daily rate % change year-on-year
+5.42% +2.15%
90% offered a daily rate of more than £410 £415 £283
10% offered a daily rate of more than £473 £415 £500
UK excluding London median daily rate £425 £390 £375
% change year-on-year
+8.97% +4.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.25 £37.45 £36.25
% change year-on-year
+10.14% +3.31%
TDD
South East

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Middlesex region.

Processes & Methodologies Category
Middlesex
Contract IT job ads with a match in the
Processes & Methodologies category
171 161 191
As % of all contract IT jobs located in Middlesex 87.69% 82.99% 78.93%
Number of daily rates quoted 112 93 119
Median daily rate £425 £396 £425
Median daily rate % change year-on-year
+7.32% -6.82%
90% offered a daily rate of more than £325 £275 £301
10% offered a daily rate of more than £528 £484 £525
UK excluding London median daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 8 7 4
Median hourly rate £37.50 £45.00 £40.00
Median hourly rate % change year-on-year
-16.66% +12.50%
UK excluding London median hourly rate £32.66 £34.00 £26.00
% change year-on-year
-3.95% +30.76%

TDD
Jobs Demand Trend in Middlesex

The demand trend of contract jobs across the Middlesex region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Middlesex

TDD
Daily Rate Trend in Middlesex

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Middlesex region.

TDD Daily Rate Trend in Middlesex

TDD
Top 30 Related IT Skills in Middlesex

For the 6 months to 29 September 2016, 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 Middlesex region with a requirement for TDD.

1 19 (86.36%) JavaScript
2 16 (72.73%) AngularJS
3 14 (63.64%) Agile Software Development
4 11 (50.00%) OO
5 10 (45.45%) OOP
5 10 (45.45%) SOLID
6 8 (36.36%) Front End Development
6 8 (36.36%) .NET
6 8 (36.36%) Telecoms
7 7 (31.82%) .NET Framework
7 7 (31.82%) LINQ
7 7 (31.82%) jQuery
7 7 (31.82%) Microsoft
7 7 (31.82%) SQL Server
7 7 (31.82%) Visual Studio
7 7 (31.82%) C#
8 6 (27.27%) Team Foundation Server
8 6 (27.27%) Entity Framework
9 5 (22.73%) Node.js
10 4 (18.18%) Git (software)
10 4 (18.18%) Web Services
10 4 (18.18%) Linux
10 4 (18.18%) SQL
10 4 (18.18%) HTTP
11 3 (13.64%) React
11 3 (13.64%) Scrum
11 3 (13.64%) CMS
11 3 (13.64%) Python
11 3 (13.64%) Unix
11 3 (13.64%) Java

TDD
Top Related IT Skills in Middlesex 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 (13.64%) CMS
1 3 (13.64%) EPiServer CMS
Cloud Services
1 3 (13.64%) OpenShift
Communications & Networking
1 4 (18.18%) HTTP
2 2 (9.09%) WebEx
3 1 (4.55%) DVB
Database & Business Intelligence
1 7 (31.82%) SQL Server
2 3 (13.64%) Relational Database
3 1 (4.55%) NoSQL
Development Applications
1 7 (31.82%) Visual Studio
2 6 (27.27%) Team Foundation Server
3 4 (18.18%) Git (software)
4 3 (13.64%) Subversion
General
1 8 (36.36%) Telecoms
2 1 (4.55%) Games
Job Titles
1 21 (95.45%) Developer
2 8 (36.36%) Front End Developer (Client-Side Developer)
2 8 (36.36%) JavaScript Developer
3 6 (27.27%) UI Developer
4 4 (18.18%) .NET Developer
4 4 (18.18%) C# .NET Developer
4 4 (18.18%) C# Developer
5 3 (13.64%) EPiServer Developer
6 2 (9.09%) Python Developer
7 1 (4.55%) Agile Developer
7 1 (4.55%) C++ Games Developer
7 1 (4.55%) C++ GUI Developer
7 1 (4.55%) Continuous Deployment Engineer
7 1 (4.55%) Embedded Engineer
7 1 (4.55%) Embedded Software Engineer
7 1 (4.55%) GUI Developer
7 1 (4.55%) Linux Developer
7 1 (4.55%) SQL Developer
7 1 (4.55%) Visual C++ Developer
7 1 (4.55%) Website Developer
Libraries, Frameworks & Software Standards
1 16 (72.73%) AngularJS
2 8 (36.36%) .NET
3 7 (31.82%) .NET Framework
3 7 (31.82%) jQuery
3 7 (31.82%) LINQ
4 6 (27.27%) Entity Framework
5 5 (22.73%) Node.js
6 4 (18.18%) Web Services
7 3 (13.64%) React
7 3 (13.64%) WPF
8 1 (4.55%) Backbone.js
8 1 (4.55%) Ember.js
8 1 (4.55%) HTML
8 1 (4.55%) HTML5
8 1 (4.55%) OpenGL
8 1 (4.55%) Qt
8 1 (4.55%) REST
Miscellaneous
1 2 (9.09%) Data Extraction
2 1 (4.55%) Digital TV
2 1 (4.55%) MPEG
2 1 (4.55%) STB
Operating Systems
1 4 (18.18%) Linux
2 3 (13.64%) Unix
Processes & Methodologies
1 14 (63.64%) Agile Software Development
2 11 (50.00%) OO
3 10 (45.45%) OOP
3 10 (45.45%) SOLID
4 8 (36.36%) Front End Development
5 3 (13.64%) BDD
5 3 (13.64%) Microservices
5 3 (13.64%) Scrum
6 2 (9.09%) Open Source
6 2 (9.09%) Software Engineering
7 1 (4.55%) Continuous Deployment
7 1 (4.55%) Continuous Improvement
7 1 (4.55%) Continuous Integration
7 1 (4.55%) Pair Programming
7 1 (4.55%) SOA
7 1 (4.55%) Software Architecture
7 1 (4.55%) User Stories
Programming Languages
1 19 (86.36%) JavaScript
2 7 (31.82%) C#
3 4 (18.18%) SQL
4 3 (13.64%) Java
4 3 (13.64%) Python
5 2 (9.09%) C++
6 1 (4.55%) C
6 1 (4.55%) VC++
Quality Assurance & Compliance
1 2 (9.09%) QA
Vendors
1 7 (31.82%) Microsoft
2 3 (13.64%) EPiServer
3 2 (9.09%) Cisco