The table below looks at the statistics for TDD skills in IT contracts advertised for the Hertfordshire region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 25 August 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
25 Aug 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 35 47 48
Rank change year-on-year
+12 +1
Contract jobs citing TDD 25 26 21
As % of all contract IT jobs located in Hertfordshire 3.55% 3.19% 2.75%
As % of the Processes & Methodologies category 4.80% 4.33% 3.40%
Number of daily rates quoted 22 12 17
Median daily rate £488 £500 £400
Median daily rate % change year-on-year
-2.50% +25.00%
90% offered a daily rate of more than £391 £378 £355
10% offered a daily rate of more than £700 £613 £455
UK excluding London median daily rate £425 £388 £375
% change year-on-year
+9.67% +3.33%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £38.00 £42.50 £71.00
% change year-on-year
-10.58% -40.14%
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
521 601 617
As % of all contract IT jobs located in Hertfordshire 74.01% 73.83% 80.65%
Number of daily rates quoted 306 310 342
Median daily rate £420 £400 £395
Median daily rate % change year-on-year
+5.00% +1.26%
90% offered a daily rate of more than £275 £275 £250
10% offered a daily rate of more than £600 £575 £500
UK excluding London median daily rate £400 £396 £375
% change year-on-year
+1.01% +5.60%
Number of hourly rates quoted 23 47 28
Median hourly rate £45.00 £33.00 £15.00
Median hourly rate % change year-on-year
+36.36% +120.00%
90% offered a hourly rate of more than £12.45 £9.00 £10.20
10% offered a hourly rate of more than £52.50 £42.50 £37.50
UK excluding London median hourly rate £30.00 £32.54 £25.00
% change year-on-year
-7.80% +30.16%

TDD
Jobs Demand Trend in Hertfordshire

The demand trend of contract jobs across the Hertfordshire region citing TDD as a proportion of all IT contracts with a match in 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 25 August 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 median contractor rates quoted in IT jobs citing TDD within the Hertfordshire region over the 3 months to 25 August 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
Welwyn Garden City +4 4 £475 -13.63%
Watford -3 2 £525 +31.25%
St Albans 0 1 £525 +16.66% 7
Letchworth - 1 - - 2
Rickmansworth - 1 - -
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 25 August 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 Hertfordshire region with a requirement for TDD.

1 39 (92.86%) Agile Software Development
2 22 (52.38%) Java
3 21 (50.00%) BDD
4 14 (33.33%) C#
4 14 (33.33%) Continuous Integration
5 13 (30.95%) Scrum
6 12 (28.57%) JavaScript
7 11 (26.19%) .NET
7 11 (26.19%) Oracle
7 11 (26.19%) Finance
7 11 (26.19%) Retail
8 10 (23.81%) Spring
9 9 (21.43%) Amazon AWS
10 8 (19.05%) Jenkins
10 8 (19.05%) Software Engineering
10 8 (19.05%) JIRA
10 8 (19.05%) Pair Programming
10 8 (19.05%) SQL Server
10 8 (19.05%) HTML
10 8 (19.05%) E-Commerce
11 7 (16.67%) ASP.NET
11 7 (16.67%) CSS
11 7 (16.67%) J2EE
11 7 (16.67%) MVC
11 7 (16.67%) Hibernate
11 7 (16.67%) DevOps
12 6 (14.29%) Test Automation
12 6 (14.29%) hybris
12 6 (14.29%) SQL
12 6 (14.29%) OO

TDD
Top Related IT Skills in Hertfordshire 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 1 (2.38%) Apache
1 1 (2.38%) Apache Solr
1 1 (2.38%) Apache Spark
1 1 (2.38%) CMS
1 1 (2.38%) DNN
1 1 (2.38%) WebSphere
Applications
1 1 (2.38%) MS Excel
Business Applications
1 1 (2.38%) Dynamics CRM
1 1 (2.38%) Magento
Cloud Services
1 9 (21.43%) Amazon AWS
2 4 (9.52%) Microsoft Azure
3 2 (4.76%) Cloud Computing
4 1 (2.38%) SaaS
Communications & Networking
1 3 (7.14%) Network Security
Database & Business Intelligence
1 8 (19.05%) SQL Server
2 5 (11.90%) MySQL
2 5 (11.90%) NoSQL
3 4 (9.52%) Couchbase
4 3 (7.14%) DB2
5 2 (4.76%) Apache Cassandra
5 2 (4.76%) MongoDB
6 1 (2.38%) DbVisualizer
6 1 (2.38%) Hazelcast
6 1 (2.38%) Redis
6 1 (2.38%) SQL Server 2008
6 1 (2.38%) SQL Server 2012
Development Applications
1 8 (19.05%) Jenkins
1 8 (19.05%) JIRA
2 4 (9.52%) Git (software)
2 4 (9.52%) Maven
3 3 (7.14%) Ant
3 3 (7.14%) Gradle
3 3 (7.14%) Subversion
4 2 (4.76%) JIRA Agile
4 2 (4.76%) Protractor
4 2 (4.76%) Visual Studio
5 1 (2.38%) Cucumber
5 1 (2.38%) Jasmine
5 1 (2.38%) NUnit
5 1 (2.38%) Selenium
5 1 (2.38%) SpecFlow
5 1 (2.38%) Team Foundation Server
5 1 (2.38%) TeamCity
5 1 (2.38%) Vagrant
5 1 (2.38%) WebDriver
General
1 11 (26.19%) Finance
1 11 (26.19%) Retail
2 3 (7.14%) Back Office
2 3 (7.14%) Front Office
3 1 (2.38%) Legal
Job Titles
1 25 (59.52%) Developer
2 14 (33.33%) Java Developer
3 5 (11.90%) .NET Developer
4 4 (9.52%) Agile Developer
4 4 (9.52%) Architect
4 4 (9.52%) ASP.NET Developer
4 4 (9.52%) C# .NET Developer
4 4 (9.52%) C# ASP.NET Developer
4 4 (9.52%) C# Developer
4 4 (9.52%) Hybris Developer
4 4 (9.52%) J2EE Developer
4 4 (9.52%) Java/J2EE Developer
5 3 (7.14%) Agile Business Analyst
5 3 (7.14%) Agile Java Developer
5 3 (7.14%) Analyst
5 3 (7.14%) ASP.NET MVC Developer
5 3 (7.14%) Business Analyst
5 3 (7.14%) Consultant
5 3 (7.14%) Senior Java Developer
5 3 (7.14%) Workflow Analyst
Libraries, Frameworks & Software Standards
1 11 (26.19%) .NET
2 10 (23.81%) Spring
3 8 (19.05%) HTML
4 7 (16.67%) ASP.NET
4 7 (16.67%) CSS
4 7 (16.67%) Hibernate
4 7 (16.67%) J2EE
5 5 (11.90%) AngularJS
6 4 (9.52%) Ajax
6 4 (9.52%) ASP.NET MVC
6 4 (9.52%) HTML5
6 4 (9.52%) jQuery
6 4 (9.52%) Twitter Bootstrap
6 4 (9.52%) XML
7 3 (7.14%) JSON
7 3 (7.14%) LESS
7 3 (7.14%) Node.js
7 3 (7.14%) Sass
7 3 (7.14%) XSLT
8 2 (4.76%) React
Miscellaneous
1 5 (11.90%) Data Structures
2 4 (9.52%) Algorithms
3 3 (7.14%) Digital Media
4 2 (4.76%) Analytical Skills
4 2 (4.76%) Virtual Team
5 1 (2.38%) Enterprise Software
5 1 (2.38%) User Experience
Operating Systems
1 3 (7.14%) Windows
2 2 (4.76%) Linux
2 2 (4.76%) Red Hat Enterprise Linux
3 1 (2.38%) Unix
Processes & Methodologies
1 39 (92.86%) Agile Software Development
2 21 (50.00%) BDD
3 14 (33.33%) Continuous Integration
4 13 (30.95%) Scrum
5 8 (19.05%) E-Commerce
5 8 (19.05%) Pair Programming
5 8 (19.05%) Software Engineering
6 7 (16.67%) DevOps
6 7 (16.67%) MVC
7 6 (14.29%) OO
7 6 (14.29%) Test Automation
8 5 (11.90%) ATDD
8 5 (11.90%) Workflow
9 4 (9.52%) Automated Testing
9 4 (9.52%) Data Management
9 4 (9.52%) Kanban
9 4 (9.52%) Non-Functional Testing
9 4 (9.52%) Test Scripting
9 4 (9.52%) Unit Testing
9 4 (9.52%) Web Development
Programming Languages
1 22 (52.38%) Java
2 14 (33.33%) C#
3 12 (28.57%) JavaScript
4 6 (14.29%) SQL
5 5 (11.90%) PHP
6 3 (7.14%) Clojure
6 3 (7.14%) Go
6 3 (7.14%) Rust
7 2 (4.76%) Ruby
8 1 (2.38%) Haskell
8 1 (2.38%) Scala
8 1 (2.38%) T-SQL
Quality Assurance & Compliance
1 5 (11.90%) QA
System Software
1 1 (2.38%) Apache ZooKeeper
1 1 (2.38%) Docker
Systems Management
1 4 (9.52%) Ansible
1 4 (9.52%) Puppet
2 3 (7.14%) Opscode Chef
Vendors
1 11 (26.19%) Oracle
2 6 (14.29%) hybris
3 5 (11.90%) Microsoft
4 3 (7.14%) IBM
4 3 (7.14%) Red Hat
5 2 (4.76%) Sitecore
6 1 (2.38%) CA
6 1 (2.38%) Zend
Hertfordshire
Oscar
Rate: £300 - £400 per day
Posted: Yesterday