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 21 January 2017 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
21 Jan 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
East of England / Hertfordshire
Rank 8 29 46
Rank change year-on-year
+21 +17
Contract jobs citing TDD 65 26 18
As % of all contract IT jobs located in Hertfordshire 11.28% 4.46% 2.74%
As % of the Processes & Methodologies category 14.81% 6.16% 3.63%
Number of daily rates quoted 50 15 16
Median daily rate £510 £625 £408
Median daily rate % change year-on-year
-18.40% +53.37%
90% offered a daily rate of more than £325 £410 £360
10% offered a daily rate of more than £700 £640 £500
UK excluding London median daily rate £419 £390 £375
% change year-on-year
+7.37% +4.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £36.51 £38.00 £38.25
% change year-on-year
-3.92% -0.65%

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
439 422 496
As % of all contract IT jobs located in Hertfordshire 76.22% 72.38% 75.61%
Number of daily rates quoted 243 212 280
Median daily rate £450 £450 £415
Median daily rate % change year-on-year
- +8.43%
90% offered a daily rate of more than £300 £275 £275
10% offered a daily rate of more than £625 £625 £550
UK excluding London median daily rate £405 £400 £393
% change year-on-year
+1.25% +1.91%
Number of hourly rates quoted 18 39 20
Median hourly rate £42.20 £37.50 £36.00
Median hourly rate % change year-on-year
+12.53% +4.16%
90% offered a hourly rate of more than £11.00 £15.00 £12.50
10% offered a hourly rate of more than £50.00 £49.50 £40.00
UK excluding London median hourly rate £35.00 £40.00 £25.25
% change year-on-year
-12.50% +58.41%

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 21 January 2017.

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 21 January 2017. 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 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 -5 9 £555 - 2
Rickmansworth - 8 £321 -
Watford -3 6 £475 +10.46% 7
St Albans +1 4 £525 -16.00% 5
Hertford - 2 - -
Welwyn - 1 - -
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 21 January 2017, 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 97 (95.10%) Agile Software Development
2 76 (74.51%) BDD
3 67 (65.69%) Java
4 50 (49.02%) Scrum
5 36 (35.29%) JIRA
6 30 (29.41%) Git (software)
6 30 (29.41%) ATDD
7 29 (28.43%) QA
8 26 (25.49%) Continuous Integration
9 25 (24.51%) OO
10 24 (23.53%) Spring
10 24 (23.53%) Jenkins
11 23 (22.55%) C#
11 23 (22.55%) E-Commerce
12 22 (21.57%) DevOps
13 21 (20.59%) Finance
13 21 (20.59%) Maven
13 21 (20.59%) Software Engineering
14 20 (19.61%) Continuous Delivery
15 19 (18.63%) Amazon AWS
15 19 (18.63%) Selenium
16 17 (16.67%) Hibernate
16 17 (16.67%) .NET
16 17 (16.67%) RESTful
17 16 (15.69%) Kanban
17 16 (15.69%) Puppet
17 16 (15.69%) Ansible
17 16 (15.69%) Data Structures
17 16 (15.69%) Gradle
17 16 (15.69%) MVC

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 8 (7.84%) Confluence
2 7 (6.86%) Apache Spark
3 6 (5.88%) IIS
3 6 (5.88%) Tomcat
4 2 (1.96%) Apache
4 2 (1.96%) Elasticsearch
4 2 (1.96%) nginx
5 1 (0.98%) JBoss
Applications
1 5 (4.90%) MS Excel
2 1 (0.98%) MS Office
Cloud Services
1 19 (18.63%) Amazon AWS
2 1 (0.98%) Microsoft Azure
Communications & Networking
1 4 (3.92%) TCP/IP
2 1 (0.98%) Network Security
Database & Business Intelligence
1 15 (14.71%) SQL Server
2 9 (8.82%) MongoDB
3 8 (7.84%) Apache Cassandra
4 7 (6.86%) NoSQL
5 6 (5.88%) MySQL
5 6 (5.88%) SQL Server 2012
6 5 (4.90%) Relational Database
7 2 (1.96%) Couchbase
7 2 (1.96%) Redis
8 1 (0.98%) Hadoop
8 1 (0.98%) SQL Server 2014
Development Applications
1 36 (35.29%) JIRA
2 30 (29.41%) Git (software)
3 24 (23.53%) Jenkins
4 21 (20.59%) Maven
5 19 (18.63%) Selenium
6 16 (15.69%) Gradle
7 15 (14.71%) Ant
7 15 (14.71%) Cucumber
8 11 (10.78%) JUnit
8 11 (10.78%) WebDriver
9 9 (8.82%) JBehave
10 8 (7.84%) Atlassian Bamboo
11 7 (6.86%) Moq
11 7 (6.86%) SoapUI
11 7 (6.86%) Team Foundation Server
12 5 (4.90%) FxCop
12 5 (4.90%) ReSharper
12 5 (4.90%) StyleCop
13 4 (3.92%) TeamCity
14 3 (2.94%) Mockito
General
1 21 (20.59%) Finance
2 15 (14.71%) Retail
3 3 (2.94%) Legal
4 1 (0.98%) Publishing
4 1 (0.98%) Telecoms
Job Titles
1 70 (68.63%) Developer
2 45 (44.12%) Java Developer
3 29 (28.43%) Agile Developer
4 28 (27.45%) Agile Java Developer
5 19 (18.63%) Senior Developer
6 18 (17.65%) Senior Java Developer
7 15 (14.71%) Senior Agile Developer
7 15 (14.71%) Senior Agile Java Developer
8 14 (13.73%) C# Developer
9 13 (12.75%) .NET Developer
9 13 (12.75%) C# .NET Developer
10 10 (9.80%) ASP.NET MVC Developer
11 9 (8.82%) ASP.NET Developer
11 9 (8.82%) C# ASP.NET Developer
12 8 (7.84%) Architect
12 8 (7.84%) Software Engineer
13 7 (6.86%) Lead Developer
13 7 (6.86%) Software Developer
14 6 (5.88%) Java Engineer
14 6 (5.88%) Scrum Master
Libraries, Frameworks & Software Standards
1 24 (23.53%) Spring
2 17 (16.67%) .NET
2 17 (16.67%) Hibernate
2 17 (16.67%) RESTful
3 14 (13.73%) CSS
3 14 (13.73%) HTML
4 13 (12.75%) REST
5 12 (11.76%) ASP.NET
6 11 (10.78%) Gherkin
7 10 (9.80%) .NET Framework
7 10 (9.80%) ASP.NET Web API
8 9 (8.82%) Entity Framework
9 8 (7.84%) ASP.NET MVC
9 8 (7.84%) XML
10 7 (6.86%) SOAP
10 7 (6.86%) WCF
10 7 (6.86%) Web Services
11 6 (5.88%) LINQ
11 6 (5.88%) NHibernate
11 6 (5.88%) XSL
Miscellaneous
1 16 (15.69%) Data Structures
2 15 (14.71%) Algorithms
3 4 (3.92%) Contactless
3 4 (3.92%) EMV
3 4 (3.92%) iPad
4 2 (1.96%) FMCG
4 2 (1.96%) User Experience
4 2 (1.96%) Virtual Team
5 1 (0.98%) Computer Science
5 1 (0.98%) Digital Media
5 1 (0.98%) Inversion of Control
5 1 (0.98%) Mobile App
Operating Systems
1 4 (3.92%) Linux
2 2 (1.96%) Unix
3 1 (0.98%) Android
Processes & Methodologies
1 97 (95.10%) Agile Software Development
2 76 (74.51%) BDD
3 50 (49.02%) Scrum
4 30 (29.41%) ATDD
5 26 (25.49%) Continuous Integration
6 25 (24.51%) OO
7 23 (22.55%) E-Commerce
8 22 (21.57%) DevOps
9 21 (20.59%) Software Engineering
10 20 (19.61%) Continuous Delivery
11 16 (15.69%) Kanban
11 16 (15.69%) MVC
11 16 (15.69%) OOD
11 16 (15.69%) Software Testing
12 15 (14.71%) Complexity Analysis
13 13 (12.75%) Pair Programming
14 11 (10.78%) Microservices
15 10 (9.80%) SOLID
16 9 (8.82%) Open Source
16 9 (8.82%) Test Strategy
Programming Languages
1 67 (65.69%) Java
2 23 (22.55%) C#
3 15 (14.71%) Go
4 14 (13.73%) JavaScript
5 13 (12.75%) Clojure
5 13 (12.75%) Rust
6 9 (8.82%) SQL
7 7 (6.86%) F#
8 6 (5.88%) VBScript
9 5 (4.90%) Scala
10 4 (3.92%) Haskell
11 3 (2.94%) Ruby
12 2 (1.96%) C++
12 2 (1.96%) Lua
12 2 (1.96%) PHP
12 2 (1.96%) Python
12 2 (1.96%) Shell Script
12 2 (1.96%) VB.NET
13 1 (0.98%) Groovy
Qualifications
1 1 (0.98%) Degree
Quality Assurance & Compliance
1 29 (28.43%) QA
2 3 (2.94%) SDET
System Software
1 3 (2.94%) Docker
Systems Management
1 16 (15.69%) Ansible
1 16 (15.69%) Puppet
2 15 (14.71%) Opscode Chef
Vendors
1 12 (11.76%) Oracle
2 9 (8.82%) Atlassian
3 7 (6.86%) Microsoft
4 4 (3.92%) hybris
4 4 (3.92%) IBM
5 2 (1.96%) Zend
6 1 (0.98%) CA
Hertfordshire
Oliver Bernard
Rate: £450 - £550 per day
Posted: 2 days ago
Hertfordshire
Pearson Frank
Rate: £375 - £400 per annum
Posted: Yesterday
Hertfordshire
Staffworx Ltd
Rate: From £400 to £600 per annum excellent rates, 6 months contract initial
Posted: Yesterday
Welwyn Garden City, Hertfordshire
Total Recruitment Specialists Limited / TRG / Total recruitment group
Rate: £500 - £550 Per Day
Posted: 5 days ago
Hatfield, Hertfordshire
Total Recruitment Specialists Limited / TRG / Total recruitment group
Rate: £500 - £550 Per Day
Posted: 5 days ago
Hatfield, Hertfordshire
Oliver Bernard
Rate: £500 - £550 per day
Posted: 5 days ago