The table below looks at the statistics for TDD skills in IT contracts advertised for the Essex region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 30 June 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
30 Jun 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 25 23 38
Rank change year-on-year
-2 +15
Contract jobs citing TDD 32 40 17
As % of all contract IT jobs located in Essex 6.68% 6.18% 3.14%
As % of the Processes & Methodologies category 8.51% 7.98% 4.22%
Number of daily rates quoted 18 17 13
Median daily rate £275 £400 £375
Median daily rate % change year-on-year
-31.25% +6.66%
90% offered a daily rate of more than £220 £340 £320
10% offered a daily rate of more than £450 £450 £450
UK excluding London median daily rate £413 £375 £375
% change year-on-year
+10.00% -
Number of hourly rates quoted 5 0 2
Median hourly rate £31.00 - £43.75
90% offered a hourly rate of more than £28.70 - £42.75
10% offered a hourly rate of more than £34.36 - £44.75
UK excluding London median hourly rate £40.00 £45.00 £59.50
% change year-on-year
-11.11% -24.36%
TDD
East of England

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

Processes & Methodologies Category
Essex
Contract IT job ads with a match in the
Processes & Methodologies category
376 501 403
As % of all contract IT jobs located in Essex 78.50% 77.43% 74.35%
Number of daily rates quoted 178 301 223
Median daily rate £350 £400 £375
Median daily rate % change year-on-year
-12.50% +6.66%
90% offered a daily rate of more than £228 £288 £225
10% offered a daily rate of more than £500 £550 £500
UK excluding London median daily rate £400 £383 £375
% change year-on-year
+4.57% +2.00%
Number of hourly rates quoted 97 40 47
Median hourly rate £31.00 £37.50 £30.00
Median hourly rate % change year-on-year
-17.33% +25.00%
90% offered a hourly rate of more than £16.50 £16.50 £16.30
10% offered a hourly rate of more than £42.56 £46.00 £45.40
UK excluding London median hourly rate £28.50 £30.00 £30.00
% change year-on-year
-5.00% -

TDD
Jobs Demand Trend in Essex

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

TDD Jobs Demand Trend in Essex

TDD
Daily Rate Trend in Essex

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

TDD Daily Rate Trend in Essex

TDD
Daily Rate Histogram in Essex

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Essex region over the 3 months to 30 June 2016.

TDD Daily Rate Histogram in Essex

TDD
Hourly Rate Trend in Essex

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing TDD across the Essex region.

TDD Hourly Rate Trend in Essex

TDD
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Essex region over the 3 months to 30 June 2016. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Basildon +7 7 £270 -32.50% 1
Brentwood - 1 £475 - 2
Chelmsford - 1 - -
Chigwell - 1 £350 -
Hockley - 1 - -
TDD
East of England

TDD
Top 30 Related IT Skills in Essex

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

1 43 (81.13%) Agile Software Development
2 33 (62.26%) HTML
3 32 (60.38%) Java
4 31 (58.49%) HTML5
5 30 (56.60%) Web Services
6 27 (50.94%) XML
7 25 (47.17%) SOAP
8 23 (43.40%) SQL Server
9 21 (39.62%) REST
9 21 (39.62%) AngularJS
10 20 (37.74%) J2EE
11 19 (35.85%) C#
11 19 (35.85%) JavaScript
12 16 (30.19%) AccuRev
13 15 (28.30%) JSF
14 14 (26.42%) TopLink
14 14 (26.42%) SQL
14 14 (26.42%) .NET
14 14 (26.42%) CSS
14 14 (26.42%) MVC
15 13 (24.53%) SOA
16 12 (22.64%) Ajax
16 12 (22.64%) .NET Framework
16 12 (22.64%) PrimeFaces
17 11 (20.75%) Entity Framework
17 11 (20.75%) Selenium
18 10 (18.87%) Scrum
18 10 (18.87%) ASP.NET
19 9 (16.98%) Oracle
19 9 (16.98%) Extreme Programming

TDD
Top Related IT Skills in Essex 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 7 (13.21%) WebSphere
2 6 (11.32%) Mule
2 6 (11.32%) Oracle Service Bus
3 3 (5.66%) SharePoint
4 2 (3.77%) BizTalk Server
4 2 (3.77%) CMS
4 2 (3.77%) SharePoint 2013
5 1 (1.89%) WebLogic
Applications
1 6 (11.32%) MS Excel
2 3 (5.66%) MS Office
Business Applications
1 2 (3.77%) Dynamics CRM
Cloud Services
1 2 (3.77%) Google Analytics
Communications & Networking
1 2 (3.77%) Firewall
1 2 (3.77%) SAN
2 1 (1.89%) HTTP
2 1 (1.89%) SSL
2 1 (1.89%) TCP/IP
Database & Business Intelligence
1 23 (43.40%) SQL Server
2 5 (9.43%) SQL Server 2008
3 3 (5.66%) Relational Database
4 1 (1.89%) RDBMS
Development Applications
1 16 (30.19%) AccuRev
2 11 (20.75%) Selenium
3 7 (13.21%) Ant
3 7 (13.21%) NUnit
4 6 (11.32%) SpecFlow
5 5 (9.43%) Cucumber
5 5 (9.43%) SoapUI
6 4 (7.55%) Git (software)
7 3 (5.66%) Jenkins
8 2 (3.77%) Gradle
8 2 (3.77%) JUnit
8 2 (3.77%) SonarQube
8 2 (3.77%) Team Foundation Server
9 1 (1.89%) JIRA
9 1 (1.89%) LoadUI
9 1 (1.89%) Maven
9 1 (1.89%) Subversion
General
1 5 (9.43%) Automotive
2 3 (5.66%) Finance
3 2 (3.77%) Marketing
4 1 (1.89%) Manufacturing
Job Titles
1 43 (81.13%) Developer
2 18 (33.96%) Java Developer
3 14 (26.42%) J2EE Developer
4 12 (22.64%) .NET Developer
4 12 (22.64%) C# Developer
4 12 (22.64%) Java/J2EE Developer
5 11 (20.75%) C# .NET Developer
6 7 (13.21%) ASP.NET Developer
6 7 (13.21%) C# ASP.NET Developer
6 7 (13.21%) HTML Developer
7 6 (11.32%) Agile Developer
7 6 (11.32%) Angular Developer
7 6 (11.32%) ASP.NET MVC Developer
7 6 (11.32%) SOA Developer
8 4 (7.55%) Integration Developer
8 4 (7.55%) JavaScript Developer
9 3 (5.66%) Analyst
9 3 (5.66%) Java Programmer
9 3 (5.66%) Senior Developer
9 3 (5.66%) Test Analyst
Libraries, Frameworks & Software Standards
1 33 (62.26%) HTML
2 31 (58.49%) HTML5
3 30 (56.60%) Web Services
4 27 (50.94%) XML
5 25 (47.17%) SOAP
6 21 (39.62%) AngularJS
6 21 (39.62%) REST
7 20 (37.74%) J2EE
8 15 (28.30%) JSF
9 14 (26.42%) .NET
9 14 (26.42%) CSS
9 14 (26.42%) TopLink
10 12 (22.64%) .NET Framework
10 12 (22.64%) Ajax
10 12 (22.64%) PrimeFaces
11 11 (20.75%) Entity Framework
12 10 (18.87%) ASP.NET
13 9 (16.98%) ASP.NET MVC
14 7 (13.21%) CSS3
14 7 (13.21%) jQuery
Miscellaneous
1 4 (7.55%) Analytical Skills
2 3 (5.66%) Client/Server
2 3 (5.66%) Computer Science
3 2 (3.77%) Statistics
3 2 (3.77%) Virtual Team
3 2 (3.77%) Web 2.0
Operating Systems
1 8 (15.09%) Linux
2 7 (13.21%) Unix
3 2 (3.77%) Solaris
3 2 (3.77%) Windows
4 1 (1.89%) Red Hat Enterprise Linux
Processes & Methodologies
1 43 (81.13%) Agile Software Development
2 14 (26.42%) MVC
3 13 (24.53%) SOA
4 10 (18.87%) Scrum
5 9 (16.98%) Extreme Programming
6 8 (15.09%) OO
6 8 (15.09%) Software Engineering
7 7 (13.21%) ATDD
7 7 (13.21%) BDD
7 7 (13.21%) Pair Programming
7 7 (13.21%) Unit Testing
8 6 (11.32%) RAD
9 5 (9.43%) Automated Testing
9 5 (9.43%) Continuous Integration
10 4 (7.55%) Agile Testing
10 4 (7.55%) Integration Testing
10 4 (7.55%) Kanban
10 4 (7.55%) Mentoring
10 4 (7.55%) System Integration Testing
10 4 (7.55%) User Acceptance Testing
Programming Languages
1 32 (60.38%) Java
2 19 (35.85%) C#
2 19 (35.85%) JavaScript
3 14 (26.42%) SQL
4 2 (3.77%) XPath
5 1 (1.89%) Groovy
5 1 (1.89%) Shell Script
5 1 (1.89%) VB.NET
Qualifications
1 6 (11.32%) Degree
2 5 (9.43%) ISTQB
3 3 (5.66%) ISTQB Foundation Certification
4 2 (3.77%) ISEB
Quality Assurance & Compliance
1 2 (3.77%) SLA
Systems Management
1 2 (3.77%) Opscode Chef
2 1 (1.89%) Puppet
Vendors
1 9 (16.98%) Oracle
2 7 (13.21%) WSO2
3 6 (11.32%) IBM
4 3 (5.66%) CA
4 3 (5.66%) Microsoft
4 3 (5.66%) Rally
5 2 (3.77%) FatWire
5 2 (3.77%) Google
5 2 (3.77%) Infor
5 2 (3.77%) Omniture
5 2 (3.77%) Salesforce.com
5 2 (3.77%) SAP