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 27 July 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
27 Jul 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 34 49 48
Rank change year-on-year
+15 -1
Contract jobs citing TDD 21 23 9
As % of all contract IT jobs located in Hertfordshire 3.30% 2.70% 1.38%
As % of the Processes & Methodologies category 4.49% 3.59% 1.79%
Number of daily rates quoted 16 11 9
Median daily rate £488 £500 £413
Median daily rate % change year-on-year
-2.50% +21.21%
90% offered a daily rate of more than £450 £360 £365
10% offered a daily rate of more than £700 £500 £430
UK excluding London median daily rate £425 £375 £375
% change year-on-year
+13.33% -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £40.00 £59.50
% change year-on-year
- -32.77%
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
468 640 504
As % of all contract IT jobs located in Hertfordshire 73.47% 75.03% 77.30%
Number of daily rates quoted 256 329 252
Median daily rate £425 £375 £375
Median daily rate % change year-on-year
+13.33% -
90% offered a daily rate of more than £288 £275 £245
10% offered a daily rate of more than £575 £550 £475
UK excluding London median daily rate £400 £388 £375
% change year-on-year
+3.22% +3.33%
Number of hourly rates quoted 17 56 32
Median hourly rate £20.00 £33.00 £21.00
Median hourly rate % change year-on-year
-39.39% +57.14%
90% offered a hourly rate of more than £16.00 £9.15 £10.85
10% offered a hourly rate of more than £52.50 £50.00 £39.00
UK excluding London median hourly rate £30.00 £30.00 £26.98
% change year-on-year
- +11.21%

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 27 July 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 27 July 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
Watford +3 2 - - 2
Rickmansworth - 1 - -
Cheshunt - 1 - -
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 27 July 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 37 (92.50%) Agile Software Development
2 23 (57.50%) Java
3 17 (42.50%) Spring
4 15 (37.50%) BDD
5 14 (35.00%) Scrum
6 12 (30.00%) Continuous Integration
7 11 (27.50%) E-Commerce
8 10 (25.00%) JavaScript
8 10 (25.00%) Oracle
8 10 (25.00%) Finance
9 8 (20.00%) Hibernate
9 8 (20.00%) HTML
9 8 (20.00%) XML
9 8 (20.00%) Amazon AWS
9 8 (20.00%) JSON
10 7 (17.50%) Retail
10 7 (17.50%) Microsoft Azure
10 7 (17.50%) CSS
10 7 (17.50%) SOAP
10 7 (17.50%) C#
10 7 (17.50%) .NET
10 7 (17.50%) REST
10 7 (17.50%) DevOps
10 7 (17.50%) SOLID
11 6 (15.00%) hybris
11 6 (15.00%) J2EE
11 6 (15.00%) Web Services
11 6 (15.00%) Microsoft
11 6 (15.00%) Test Automation
11 6 (15.00%) Open Source

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 (2.50%) Apache
1 1 (2.50%) Apache Solr
1 1 (2.50%) CMS
1 1 (2.50%) DNN
1 1 (2.50%) WebSphere
Applications
1 1 (2.50%) MS Excel
Business Applications
1 1 (2.50%) Dynamics CRM
1 1 (2.50%) Magento
Cloud Services
1 8 (20.00%) Amazon AWS
2 7 (17.50%) Microsoft Azure
3 3 (7.50%) GitHub
4 2 (5.00%) Cloud Computing
5 1 (2.50%) SaaS
Communications & Networking
1 2 (5.00%) Network Security
Database & Business Intelligence
1 5 (12.50%) MySQL
1 5 (12.50%) NoSQL
2 4 (10.00%) Couchbase
2 4 (10.00%) SQL Server
3 3 (7.50%) DB2
4 1 (2.50%) DbVisualizer
4 1 (2.50%) Hazelcast
4 1 (2.50%) Redis
4 1 (2.50%) SQL Server 2008
Development Applications
1 4 (10.00%) Jenkins
1 4 (10.00%) JIRA
2 3 (7.50%) Subversion
3 2 (5.00%) Cucumber
3 2 (5.00%) JIRA Agile
3 2 (5.00%) Selenium
4 1 (2.50%) Maven
4 1 (2.50%) Protractor
4 1 (2.50%) Visual Studio
4 1 (2.50%) WebDriver
General
1 10 (25.00%) Finance
2 7 (17.50%) Retail
3 3 (7.50%) Back Office
3 3 (7.50%) Front Office
Job Titles
1 22 (55.00%) Developer
2 15 (37.50%) Java Developer
3 6 (15.00%) Agile Developer
3 6 (15.00%) Architect
4 5 (12.50%) Agile Java Developer
5 4 (10.00%) Analyst
5 4 (10.00%) Hybris Developer
5 4 (10.00%) J2EE Developer
5 4 (10.00%) Java/J2EE Developer
6 3 (7.50%) Agile Business Analyst
6 3 (7.50%) Business Analyst
6 3 (7.50%) Consultant
6 3 (7.50%) Core Java Developer
6 3 (7.50%) E-Commerce Architect
6 3 (7.50%) Senior Analyst
6 3 (7.50%) Senior Business Analyst
6 3 (7.50%) Workflow Analyst
7 2 (5.00%) Ruby on Rails Developer
7 2 (5.00%) Test Architect
7 2 (5.00%) Test Automation Consultant
Libraries, Frameworks & Software Standards
1 17 (42.50%) Spring
2 8 (20.00%) Hibernate
2 8 (20.00%) HTML
2 8 (20.00%) JSON
2 8 (20.00%) XML
3 7 (17.50%) .NET
3 7 (17.50%) CSS
3 7 (17.50%) REST
3 7 (17.50%) SOAP
4 6 (15.00%) J2EE
4 6 (15.00%) Web Services
5 4 (10.00%) Ajax
5 4 (10.00%) AngularJS
5 4 (10.00%) HTML5
5 4 (10.00%) Twitter Bootstrap
6 3 (7.50%) jQuery
6 3 (7.50%) LESS
6 3 (7.50%) Node.js
6 3 (7.50%) Ruby on Rails
6 3 (7.50%) Sass
Miscellaneous
1 3 (7.50%) Analytical Skills
1 3 (7.50%) iPad
2 2 (5.00%) Digital Media
2 2 (5.00%) Virtual Team
3 1 (2.50%) Data Structures
3 1 (2.50%) Enterprise Software
3 1 (2.50%) FMCG
3 1 (2.50%) User Experience
Operating Systems
1 3 (7.50%) Windows
2 2 (5.00%) Linux
2 2 (5.00%) Red Hat Enterprise Linux
3 1 (2.50%) Unix
Processes & Methodologies
1 37 (92.50%) Agile Software Development
2 15 (37.50%) BDD
3 14 (35.00%) Scrum
4 12 (30.00%) Continuous Integration
5 11 (27.50%) E-Commerce
6 7 (17.50%) DevOps
6 7 (17.50%) SOLID
7 6 (15.00%) Open Source
7 6 (15.00%) Pair Programming
7 6 (15.00%) Test Automation
8 5 (12.50%) Continuous Delivery
8 5 (12.50%) Kanban
8 5 (12.50%) SOA
8 5 (12.50%) Workflow
9 4 (10.00%) Mentoring
9 4 (10.00%) Microservices
9 4 (10.00%) Migration
9 4 (10.00%) Non-Functional Testing
9 4 (10.00%) Regression Testing
9 4 (10.00%) Test Scripting
Programming Languages
1 23 (57.50%) Java
2 10 (25.00%) JavaScript
3 7 (17.50%) C#
4 4 (10.00%) PHP
4 4 (10.00%) SQL
5 3 (7.50%) Ruby
6 2 (5.00%) Scala
7 1 (2.50%) T-SQL
Quality Assurance & Compliance
1 1 (2.50%) QA
System Software
1 1 (2.50%) Apache ZooKeeper
Systems Management
1 1 (2.50%) Ansible
Vendors
1 10 (25.00%) Oracle
2 6 (15.00%) hybris
2 6 (15.00%) Microsoft
3 3 (7.50%) IBM
3 3 (7.50%) Red Hat
4 2 (5.00%) Sitecore
Welwyn Garden City, Hertfordshire
Elevate Direct
Rate: From £450 to £500 per day
Posted: 22 hours ago
Hertfordshire
Oscar
Rate: £250 - £300 per day
Posted: 5 days ago
Hertfordshire
Maclean Moore Consulting
Rate: Up to £625 per day
Posted: 4 days ago