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 13 February 2016 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
13 Feb 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 25 53 39
Rank change year-on-year
+28 -14
Contract jobs citing TDD 31 11 29
As % of all contract IT jobs located in Hertfordshire 5.50% 1.75% 4.27%
As % of the Processes & Methodologies category 7.75% 2.35% 5.84%
Number of daily rates quoted 18 8 19
Average daily rate £624 £463 £438
Average daily rate % change year-on-year
+34.86% +5.71%
90% offered a daily rate of more than £410 £321 £395
10% offered a daily rate of more than £633 £545 £653
UK excluding London average daily rate £391 £375 £375
% change year-on-year
+4.33% -
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate £40.00 £36.00 £37.50
% change year-on-year
+11.11% -4.00%
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
400 469 497
As % of all contract IT jobs located in Hertfordshire 70.92% 74.44% 73.20%
Number of daily rates quoted 214 247 255
Average daily rate £450 £425 £400
Average daily rate % change year-on-year
+5.88% +6.25%
90% offered a daily rate of more than £309 £275 £275
10% offered a daily rate of more than £625 £575 £533
UK excluding London average daily rate £400 £400 £375
% change year-on-year
- +6.66%
Number of hourly rates quoted 37 23 32
Average hourly rate £37.50 £33.50 £27.50
Average hourly rate % change year-on-year
+11.94% +21.81%
90% offered a hourly rate of more than £15.00 £13.50 £12.54
10% offered a hourly rate of more than £49.50 £40.00 £37.50
UK excluding London average hourly rate £40.00 £27.79 £27.50
% change year-on-year
+43.93% +1.05%

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 13 February 2016.

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 13 February 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
(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 +9 12 £450 +9.09%
St Albans - 10 £625 - 3
Welwyn Garden City - 2 - - 1
Welwyn - 2 - -
Rickmansworth -1 1 £550 +77.41%
Stevenage - 1 £365 - 2
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 13 February 2016, 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 50 (94.34%) Agile Software Development
2 25 (47.17%) Continuous Integration
3 24 (45.28%) SQL
4 22 (41.51%) SOAP
5 21 (39.62%) E-Commerce
5 21 (39.62%) REST
6 20 (37.74%) C#
6 20 (37.74%) Java
7 19 (35.85%) JavaScript
7 19 (35.85%) SQL Server
7 19 (35.85%) SOA
8 17 (32.08%) DevOps
9 15 (28.30%) .NET
10 14 (26.42%) HTML
10 14 (26.42%) XML
10 14 (26.42%) RESTful
10 14 (26.42%) Retail
10 14 (26.42%) Spring
10 14 (26.42%) Selenium
11 13 (24.53%) Coaching
11 13 (24.53%) BDD
12 12 (22.64%) WCF
12 12 (22.64%) Automated Testing
12 12 (22.64%) Unix
13 11 (20.75%) QA
13 11 (20.75%) Subversion
13 11 (20.75%) Magento
13 11 (20.75%) Test Automation
14 10 (18.87%) Test Scripting
14 10 (18.87%) SaaS

TDD
Top Related IT Skills in Hertfordshire by Category

For the 6 months to 13 February 2016, 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 3 (5.66%) Apache Solr
1 3 (5.66%) WebSphere
2 2 (3.77%) JBoss
2 2 (3.77%) WebSphere Application Server
2 2 (3.77%) WebSphere Portal
3 1 (1.89%) BizTalk Server
3 1 (1.89%) WebLogic
3 1 (1.89%) WebLogic Portal
Business Applications
1 11 (20.75%) Magento
Cloud Services
1 10 (18.87%) SaaS
2 9 (16.98%) Cloud Computing
3 4 (7.55%) GitHub
4 3 (5.66%) Amazon AWS
4 3 (5.66%) Microsoft Azure
Communications & Networking
1 2 (3.77%) HTTP
Database & Business Intelligence
1 19 (35.85%) SQL Server
2 10 (18.87%) DB2
3 6 (11.32%) DbVisualizer
4 2 (3.77%) NoSQL
5 1 (1.89%) Big Data
5 1 (1.89%) Couchbase
5 1 (1.89%) Hadoop
5 1 (1.89%) Mnesia
5 1 (1.89%) Oracle Database
5 1 (1.89%) SQL Server 2014
Development Applications
1 14 (26.42%) Selenium
2 11 (20.75%) Subversion
3 10 (18.87%) WebDriver
4 9 (16.98%) Git (software)
5 8 (15.09%) Jenkins
5 8 (15.09%) PHPUnit
6 6 (11.32%) Cucumber
7 5 (9.43%) Appium
7 5 (9.43%) Maven
8 4 (7.55%) JIRA
9 3 (5.66%) JUnit
9 3 (5.66%) Protractor
9 3 (5.66%) Team Foundation Server
9 3 (5.66%) TeamCity
10 2 (3.77%) Ant
10 2 (3.77%) DbUnit
10 2 (3.77%) FitNesse
10 2 (3.77%) MSTest
10 2 (3.77%) SoapUI
10 2 (3.77%) SpecFlow
General
1 14 (26.42%) Retail
2 3 (5.66%) Back Office
3 2 (3.77%) Finance
3 2 (3.77%) Games
3 2 (3.77%) Telecoms
Job Titles
1 18 (33.96%) Developer
2 17 (32.08%) Architect
3 14 (26.42%) E-Commerce Architect
4 11 (20.75%) E-Commerce Solution Architect
4 11 (20.75%) Solutions Architect
5 10 (18.87%) Automation Tester
5 10 (18.87%) Java Developer
5 10 (18.87%) Selenium Tester
5 10 (18.87%) Tester
5 10 (18.87%) Web Tester
6 8 (15.09%) Senior Architect
6 8 (15.09%) Senior Solutions Architect
7 6 (11.32%) .NET Developer
8 5 (9.43%) Agile Developer
8 5 (9.43%) Agile Java Developer
8 5 (9.43%) Technical Architect
9 3 (5.66%) Hybris Architect
10 2 (3.77%) Core Java Developer
10 2 (3.77%) Digital Architect
10 2 (3.77%) Digital Technical Architect
Libraries, Frameworks & Software Standards
1 22 (41.51%) SOAP
2 21 (39.62%) REST
3 15 (28.30%) .NET
4 14 (26.42%) HTML
4 14 (26.42%) RESTful
4 14 (26.42%) Spring
4 14 (26.42%) XML
5 12 (22.64%) WCF
6 10 (18.87%) Web Services
7 8 (15.09%) MSMQ
8 7 (13.21%) J2EE
8 7 (13.21%) Java EE
8 7 (13.21%) JSON
8 7 (13.21%) Middleware
9 6 (11.32%) AngularJS
9 6 (11.32%) Flash
10 5 (9.43%) Behat
11 4 (7.55%) Hibernate
11 4 (7.55%) JMS
12 3 (5.66%) jQuery
Miscellaneous
1 10 (18.87%) Analytical Skills
2 9 (16.98%) Data Integration
3 2 (3.77%) Inversion of Control
3 2 (3.77%) iPad
4 1 (1.89%) FMCG
4 1 (1.89%) Replication
4 1 (1.89%) Tandem
4 1 (1.89%) User Experience
Operating Systems
1 12 (22.64%) Unix
2 3 (5.66%) Windows
Processes & Methodologies
1 50 (94.34%) Agile Software Development
2 25 (47.17%) Continuous Integration
3 21 (39.62%) E-Commerce
4 19 (35.85%) SOA
5 17 (32.08%) DevOps
6 13 (24.53%) BDD
6 13 (24.53%) Coaching
7 12 (22.64%) Automated Testing
8 11 (20.75%) Test Automation
9 10 (18.87%) Document Management
9 10 (18.87%) Test Scripting
10 9 (16.98%) Stakeholder Management
11 7 (13.21%) Scrum
12 6 (11.32%) System Testing
12 6 (11.32%) User Stories
13 5 (9.43%) SOLID
14 4 (7.55%) Continuous Delivery
14 4 (7.55%) Mentoring
14 4 (7.55%) Open Source
14 4 (7.55%) Re-Platforming
Programming Languages
1 24 (45.28%) SQL
2 20 (37.74%) C#
2 20 (37.74%) Java
3 19 (35.85%) JavaScript
4 8 (15.09%) PHP
5 5 (9.43%) PowerShell
6 3 (5.66%) T-SQL
7 2 (3.77%) Scala
8 1 (1.89%) Erlang
8 1 (1.89%) Ruby
8 1 (1.89%) SystemTap
Qualifications
1 7 (13.21%) SC Cleared
1 7 (13.21%) Security Cleared
2 1 (1.89%) Sun Certification
Quality Assurance & Compliance
1 11 (20.75%) QA
Vendors
1 9 (16.98%) Microsoft
2 7 (13.21%) Red Hat
3 3 (5.66%) hybris
4 2 (3.77%) Progress
4 2 (3.77%) Sitecore
4 2 (3.77%) Splunk
5 1 (1.89%) BEA
5 1 (1.89%) Google
5 1 (1.89%) IBM
5 1 (1.89%) Intel
5 1 (1.89%) Oracle
Welwyn Garden City, Hertfordshire
Staffworx Ltd
Rate: market rates, start 8 Feb
Posted: 3 days ago
Stevenage
Real Staffing
Rate: £350 - £380 per day
Posted: 10 days ago