The table below looks at the statistics for TDD skills in IT contracts advertised for the Hertfordshire region. Included is a guide to the average contractor rates offered in IT contracts that have cited TDD over the 3 months to 28 January 2015 with a comparison to the same period in 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.

Location
3 months to
28 Jan 2015
Same period 2014 Same period 2013
Test-Driven Development (TDD)
Rank 49 33 27
Rank change year-on-year
-16 -6
Contract jobs citing TDD 14 31 50
As % of all contract IT jobs located in Hertfordshire 2.14% 4.98% 6.46%
As % of the Processes & Methodologies category 2.90% 7.14% 9.23%
Number of daily rates quoted 11 21 43
Average daily rate
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£403 £438 £500
Average daily rate % change year-on-year
-8.00% -12.50%
90% offered a daily rate of more than £360 £350 £368
10% offered a daily rate of more than £500 £653 £650
UK excluding London average daily rate £375 £363 £350
% change year-on-year
+3.44% +3.57%
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate £37.50 £35.00 £39.00
% change year-on-year
+7.14% -10.25%
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 Hertfordshire region.

Processes & Methodologies Category
Hertfordshire
Contract IT job ads with a match in the
Processes & Methodologies category
482 434 542
As % of all contract IT jobs located in Hertfordshire 73.81% 69.66% 70.03%
Number of daily rates quoted 268 224 316
Average daily rate £415 £400 £400
Average daily rate % change year-on-year
+3.75% -
90% offered a daily rate of more than £275 £275 £275
10% offered a daily rate of more than £575 £550 £600
UK excluding London average daily rate £398 £375 £360
% change year-on-year
+6.00% +4.16%
Number of hourly rates quoted 22 24 21
Average hourly rate £33.50 £25.00 £37.50
Average hourly rate % change year-on-year
+34.00% -33.33%
90% offered a hourly rate of more than £12.50 £15.00 £14.75
10% offered a hourly rate of more than £40.00 £37.50 £118.75
UK excluding London average hourly rate £26.00 £27.50 £31.07
% change year-on-year
-5.45% -11.49%

TDD
Jobs Demand Trend in Hertfordshire

This chart provides a 3-month moving total of IT contractor jobs citing TDD across the Hertfordshire region as a proportion of the total demand within the Processes & Methodologies category.

TDD Jobs Demand Trend in Hertfordshire

TDD
Daily Rate Trend in Hertfordshire

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

TDD Daily Rate Trend in Hertfordshire

TDD
Daily Rate Histogram in Hertfordshire

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Hertfordshire region over the 3 months to 28 January 2015.

TDD Daily Rate Histogram in Hertfordshire

TDD
Hourly Rate Trend in Hertfordshire

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

TDD Hourly Rate Trend in Hertfordshire

TDD
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing TDD within the Hertfordshire region over the 3 months to 28 January 2015. 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
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford +6 2 £500 -23.37% 4
Rickmansworth - 1 £310 -
St Albans - - - - 5
Stevenage - - - - 3
Welwyn Garden City - - - - 1
Borehamwood - - - -
Hemel Hempstead - - - -
Hitchin - - - -
Letchworth - - - -
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 28 January 2015, IT contractor jobs across the Hertfordshire region citing TDD also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited TDD.

1 60 (93.75%) Agile Software Development
2 54 (84.38%) BDD
3 36 (56.25%) Scrum
4 33 (51.56%) JavaScript
4 33 (51.56%) CSS
5 30 (46.88%) HTML
6 29 (45.31%) REST
7 28 (43.75%) .NET
8 23 (35.94%) Java
8 23 (35.94%) XML
8 23 (35.94%) Git (software)
9 22 (34.38%) Continuous Integration
9 22 (34.38%) Subversion
9 22 (34.38%) C#
10 20 (31.25%) SQL
10 20 (31.25%) Linux
11 19 (29.69%) Ant
11 19 (29.69%) OO
11 19 (29.69%) Apache
12 18 (28.13%) Marketing
13 17 (26.56%) MVC
14 16 (25.00%) Ajax
14 16 (25.00%) Spring
14 16 (25.00%) Unit Testing
15 15 (23.44%) Finance
15 15 (23.44%) ASP.NET
16 14 (21.88%) Web Services
16 14 (21.88%) Selenium
16 14 (21.88%) WCF
16 14 (21.88%) NoSQL

TDD
Top Related IT Skills in Hertfordshire by Category

For the 6 months to 28 January 2015, IT contractor jobs across the Hertfordshire region citing TDD also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited TDD. Up to 20 skills are shown per category.

Application Platforms
1 19 (29.69%) Apache
2 12 (18.75%) Tomcat
3 8 (12.50%) Node.js
4 7 (10.94%) lighttpd
4 7 (10.94%) IIS
5 6 (9.38%) CMS
5 6 (9.38%) Confluence
6 2 (3.13%) WebLogic Portal
6 2 (3.13%) WebLogic
6 2 (3.13%) Elasticsearch
Applications
1 1 (1.56%) Photoshop
1 1 (1.56%) MS Excel
Cloud Services
1 1 (1.56%) PaaS
1 1 (1.56%) Microsoft Azure
Communications & Networking
1 9 (14.06%) Internet
2 7 (10.94%) TCP/IP
3 2 (3.13%) HTTP
Database & Business Intelligence
1 14 (21.88%) NoSQL
2 11 (17.19%) Relational Database
3 10 (15.63%) MySQL
3 10 (15.63%) Couchbase
4 9 (14.06%) RDBMS
5 4 (6.25%) SQL Server
5 4 (6.25%) SQL Server 2012
6 2 (3.13%) Oracle Database 10g
6 2 (3.13%) Oracle Database
7 1 (1.56%) Azure SQL Database
Development Applications
1 23 (35.94%) Git (software)
2 22 (34.38%) Subversion
3 19 (29.69%) Ant
4 14 (21.88%) Selenium
4 14 (21.88%) Jenkins
5 12 (18.75%) JUnit
5 12 (18.75%) Eclipse
5 12 (18.75%) JIRA
6 10 (15.63%) Maven
6 10 (15.63%) Cucumber
7 9 (14.06%) Mockito
7 9 (14.06%) IntelliJ
8 8 (12.50%) Team Foundation Server
9 7 (10.94%) SpecFlow
9 7 (10.94%) StyleCop
9 7 (10.94%) Grunt
10 4 (6.25%) WATIR
10 4 (6.25%) RSpec
10 4 (6.25%) TeamCity
10 4 (6.25%) FxCop
General
1 18 (28.13%) Marketing
2 15 (23.44%) Finance
3 2 (3.13%) Retail
4 1 (1.56%) Advertising
4 1 (1.56%) Financial Institution
Job Titles
1 59 (92.19%) Developer
2 21 (32.81%) Java Developer
3 17 (26.56%) .NET Developer
4 12 (18.75%) Senior Developer
5 11 (17.19%) Front-End Developer
6 7 (10.94%) C# Developer
6 7 (10.94%) Senior Front-End Developer
7 5 (7.81%) C# .NET Developer
7 5 (7.81%) Lead Developer
8 4 (6.25%) Software Developer
9 3 (4.69%) Agile .NET Developer
9 3 (4.69%) Senior .NET Developer
9 3 (4.69%) Architect
10 2 (3.13%) Programmer
10 2 (3.13%) Solutions Architect
10 2 (3.13%) .NET Programmer
10 2 (3.13%) Java Software Developer
10 2 (3.13%) Agile C# Developer
10 2 (3.13%) Software Programmer
10 2 (3.13%) Java/J2EE Developer
Libraries, Frameworks & Software Standards
1 33 (51.56%) CSS
2 30 (46.88%) HTML
3 29 (45.31%) REST
4 28 (43.75%) .NET
5 23 (35.94%) XML
6 16 (25.00%) Ajax
6 16 (25.00%) Spring
7 15 (23.44%) ASP.NET
8 14 (21.88%) Web Services
8 14 (21.88%) WCF
9 13 (20.31%) SOAP
10 12 (18.75%) JSP
10 12 (18.75%) HTML5
10 12 (18.75%) CSS3
11 11 (17.19%) JSON
12 10 (15.63%) .NET Framework
13 9 (14.06%) LINQ
13 9 (14.06%) XSL
13 9 (14.06%) XSLT
13 9 (14.06%) JDBC
Miscellaneous
1 7 (10.94%) User Experience
1 7 (10.94%) Analytical Skills
1 7 (10.94%) Open Source
2 2 (3.13%) EMV
3 1 (1.56%) Smartphone
Operating Systems
1 20 (31.25%) Linux
2 12 (18.75%) UNIX
Processes & Methodologies
1 60 (93.75%) Agile Software Development
2 54 (84.38%) BDD
3 36 (56.25%) Scrum
4 22 (34.38%) Continuous Integration
5 19 (29.69%) OO
6 17 (26.56%) MVC
7 16 (25.00%) Unit Testing
8 11 (17.19%) Waterfall
8 11 (17.19%) OOP
9 10 (15.63%) SOA
9 10 (15.63%) Pair Programming
9 10 (15.63%) DevOps
9 10 (15.63%) Responsive Web Design
10 9 (14.06%) E-Commerce
10 9 (14.06%) Code Coverage
11 7 (10.94%) Web Design
11 7 (10.94%) Performance Testing
11 7 (10.94%) Regression Testing
12 6 (9.38%) Web Development
13 4 (6.25%) Automated Testing
Programming Languages
1 33 (51.56%) JavaScript
2 23 (35.94%) Java
3 22 (34.38%) C#
4 20 (31.25%) SQL
5 9 (14.06%) VBScript
6 8 (12.50%) Ruby
7 3 (4.69%) Scala
7 3 (4.69%) Python
8 2 (3.13%) PL/SQL
9 1 (1.56%) Perl
9 1 (1.56%) PHP
Qualifications
1 1 (1.56%) Sun Certification
Quality Assurance & Compliance
1 7 (10.94%) QA
2 1 (1.56%) SLA
Systems Management
1 3 (4.69%) Business Desktop Deployment
1 3 (4.69%) SCOM
Vendors
1 5 (7.81%) Microsoft
2 4 (6.25%) Oracle
3 3 (4.69%) Splunk
4 2 (3.13%) BEA
5 1 (1.56%) Adobe
Hertfordshire
Oscar Associates (UK) Ltd
Rate: £275 - £330 per day + Negotiable
Posted: 1 hour ago