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 February 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
25 Feb 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
East of England / Hertfordshire
Rank 8 25 50
Rank change year-on-year
+17 +25
Contract jobs citing TDD 58 31 11
As % of all contract IT jobs located in Hertfordshire 9.85% 5.14% 1.72%
As % of the Processes & Methodologies category 12.75% 6.98% 2.28%
Number of daily rates quoted 40 17 9
Median daily rate £504 £550 £425
Median daily rate % change year-on-year
-8.40% +29.41%
90% offered a daily rate of more than £324 £410 £322
10% offered a daily rate of more than £642 £635 £530
UK excluding London median daily rate £416 £400 £375
% change year-on-year
+4.00% +6.66%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £40.00 £34.50
% change year-on-year
-2.50% +15.94%

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
455 444 482
As % of all contract IT jobs located in Hertfordshire 77.25% 73.63% 75.55%
Number of daily rates quoted 239 231 250
Median daily rate £450 £450 £413
Median daily rate % change year-on-year
- +9.09%
90% offered a daily rate of more than £250 £305 £265
10% offered a daily rate of more than £613 £625 £575
UK excluding London median daily rate £408 £400 £400
% change year-on-year
+1.87% -
Number of hourly rates quoted 23 40 25
Median hourly rate £46.73 £37.50 £33.50
Median hourly rate % change year-on-year
+24.60% +11.94%
90% offered a hourly rate of more than £33.00 £14.50 £17.22
10% offered a hourly rate of more than £52.50 £49.50 £40.00
UK excluding London median hourly rate £36.00 £40.00 £27.79
% change year-on-year
-10.00% +43.93%

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 February 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 25 February 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
Rickmansworth +8 9 £321 -41.59%
Welwyn Garden City -4 5 £531 -
Watford -3 4 £425 -5.55% 3
Hertford - 2 - -
Hemel Hempstead +5 1 £360 -33.02% 3
Welwyn +1 1 - -
Letchworth - 1 - - 3
TDD
East of England

TDD
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 25 February 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 (93.27%) Agile Software Development
2 77 (74.04%) BDD
3 71 (68.27%) Java
4 53 (50.96%) Scrum
5 34 (32.69%) JIRA
6 29 (27.88%) Git (software)
6 29 (27.88%) ATDD
6 29 (27.88%) E-Commerce
7 27 (25.96%) Spring
8 26 (25.00%) QA
9 25 (24.04%) Continuous Integration
10 22 (21.15%) Jenkins
10 22 (21.15%) Continuous Delivery
10 22 (21.15%) Finance
10 22 (21.15%) OO
11 21 (20.19%) Selenium
12 20 (19.23%) Maven
12 20 (19.23%) RESTful
13 19 (18.27%) DevOps
14 18 (17.31%) Hibernate
14 18 (17.31%) Software Testing
14 18 (17.31%) C#
15 17 (16.35%) Microservices
15 17 (16.35%) Amazon AWS
15 17 (16.35%) Cucumber
16 16 (15.38%) REST
16 16 (15.38%) Software Engineering
17 15 (14.42%) .NET
17 15 (14.42%) HTML
17 15 (14.42%) CSS

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 9 (8.65%) Confluence
2 7 (6.73%) Tomcat
3 6 (5.77%) Apache Spark
3 6 (5.77%) IIS
4 3 (2.88%) Elasticsearch
4 3 (2.88%) nginx
5 2 (1.92%) Apache
6 1 (0.96%) JBoss
Applications
1 5 (4.81%) MS Excel
2 1 (0.96%) MS Office
Cloud Services
1 17 (16.35%) Amazon AWS
Communications & Networking
1 4 (3.85%) TCP/IP
Database & Business Intelligence
1 14 (13.46%) SQL Server
2 7 (6.73%) MongoDB
2 7 (6.73%) MySQL
2 7 (6.73%) NoSQL
3 6 (5.77%) Apache Cassandra
3 6 (5.77%) SQL Server 2012
4 5 (4.81%) Relational Database
5 3 (2.88%) Redis
6 2 (1.92%) SQL Server 2014
7 1 (0.96%) Couchbase
7 1 (0.96%) Hadoop
Development Applications
1 34 (32.69%) JIRA
2 29 (27.88%) Git (software)
3 22 (21.15%) Jenkins
4 21 (20.19%) Selenium
5 20 (19.23%) Maven
6 17 (16.35%) Cucumber
7 14 (13.46%) Gradle
8 13 (12.50%) Ant
8 13 (12.50%) WebDriver
9 12 (11.54%) JUnit
10 11 (10.58%) JBehave
11 9 (8.65%) Atlassian Bamboo
12 8 (7.69%) Moq
12 8 (7.69%) SoapUI
12 8 (7.69%) Team Foundation Server
13 5 (4.81%) FxCop
13 5 (4.81%) ReSharper
13 5 (4.81%) StyleCop
14 4 (3.85%) Mockito
14 4 (3.85%) TeamCity
General
1 22 (21.15%) Finance
2 11 (10.58%) Retail
3 3 (2.88%) Legal
4 1 (0.96%) Publishing
4 1 (0.96%) Telecoms
Job Titles
1 69 (66.35%) Developer
2 46 (44.23%) Java Developer
3 31 (29.81%) Agile Developer
4 30 (28.85%) Agile Java Developer
5 20 (19.23%) Senior Developer
6 19 (18.27%) Senior Java Developer
7 17 (16.35%) Senior Agile Developer
7 17 (16.35%) Senior Agile Java Developer
8 13 (12.50%) C# Developer
9 12 (11.54%) .NET Developer
9 12 (11.54%) C# .NET Developer
10 10 (9.62%) Architect
11 9 (8.65%) ASP.NET MVC Developer
11 9 (8.65%) AWS Developer
12 8 (7.69%) Software Developer
13 7 (6.73%) ASP.NET Developer
13 7 (6.73%) C# ASP.NET Developer
13 7 (6.73%) Software Engineer
14 6 (5.77%) Lead Developer
14 6 (5.77%) Test Manager
Libraries, Frameworks & Software Standards
1 27 (25.96%) Spring
2 20 (19.23%) RESTful
3 18 (17.31%) Hibernate
4 16 (15.38%) REST
5 15 (14.42%) .NET
5 15 (14.42%) CSS
5 15 (14.42%) HTML
6 13 (12.50%) Gherkin
7 12 (11.54%) ASP.NET Web API
8 10 (9.62%) ASP.NET
9 9 (8.65%) .NET Framework
9 9 (8.65%) Entity Framework
9 9 (8.65%) XML
10 8 (7.69%) JSON
11 7 (6.73%) SOAP
11 7 (6.73%) WCF
11 7 (6.73%) Web Services
12 6 (5.77%) AngularJS
12 6 (5.77%) ASP.NET MVC
12 6 (5.77%) XSL
Miscellaneous
1 13 (12.50%) Data Structures
2 12 (11.54%) Algorithms
3 6 (5.77%) iPad
4 4 (3.85%) Contactless
4 4 (3.85%) EMV
5 2 (1.92%) FMCG
5 2 (1.92%) Virtual Team
6 1 (0.96%) Computer Science
6 1 (0.96%) Linux Command Line
6 1 (0.96%) Mobile App
6 1 (0.96%) Tandem
6 1 (0.96%) User Experience
Operating Systems
1 5 (4.81%) Linux
2 2 (1.92%) Unix
3 1 (0.96%) Android
Processes & Methodologies
1 97 (93.27%) Agile Software Development
2 77 (74.04%) BDD
3 53 (50.96%) Scrum
4 29 (27.88%) ATDD
4 29 (27.88%) E-Commerce
5 25 (24.04%) Continuous Integration
6 22 (21.15%) Continuous Delivery
6 22 (21.15%) OO
7 19 (18.27%) DevOps
8 18 (17.31%) Software Testing
9 17 (16.35%) Microservices
10 16 (15.38%) Software Engineering
11 15 (14.42%) Kanban
12 13 (12.50%) MVC
12 13 (12.50%) OOD
13 12 (11.54%) Complexity Analysis
14 11 (10.58%) Open Source
14 11 (10.58%) SOLID
14 11 (10.58%) Test Strategy
15 10 (9.62%) Pair Programming
Programming Languages
1 71 (68.27%) Java
2 18 (17.31%) C#
3 14 (13.46%) Go
4 12 (11.54%) JavaScript
5 11 (10.58%) Clojure
5 11 (10.58%) Rust
6 9 (8.65%) SQL
7 8 (7.69%) F#
8 6 (5.77%) VBScript
9 4 (3.85%) Scala
10 3 (2.88%) C++
10 3 (2.88%) Haskell
10 3 (2.88%) Lua
10 3 (2.88%) Python
10 3 (2.88%) Ruby
11 2 (1.92%) Shell Script
11 2 (1.92%) VB.NET
12 1 (0.96%) Groovy
12 1 (0.96%) PHP
12 1 (0.96%) T-SQL
Qualifications
1 1 (0.96%) Degree
Quality Assurance & Compliance
1 26 (25.00%) QA
2 3 (2.88%) SDET
System Software
1 3 (2.88%) Docker
Systems Management
1 14 (13.46%) Ansible
2 13 (12.50%) Opscode Chef
2 13 (12.50%) Puppet
Vendors
1 11 (10.58%) Oracle
2 10 (9.62%) Atlassian
3 8 (7.69%) Microsoft
4 4 (3.85%) hybris
4 4 (3.85%) IBM
5 1 (0.96%) Zend
Hatfield, Hertfordshire
TEKsystems
Rate: £500 - £550 per day
Posted: 3 days ago
Hertfordshire
Oliver Bernard
Rate: £575 - £625 per day
Posted: 3 days ago