The table below looks at the statistics for TDD skills in IT contracts advertised for the Welwyn Garden City region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 6 December 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
6 Dec 2016
Same period 2015 Same period 2014
Test-Driven Development (TDD)
Rank 8 - 10
Rank change year-on-year
- 0
Contract jobs citing TDD 10 0 2
As % of all contract IT jobs located in Welwyn Garden City 10.99% - 4.08%
As % of the Processes & Methodologies category 13.16% - 5.71%
Number of daily rates quoted 6 0 1
Median daily rate £575 - £325
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 £42.50 £36.98 £38.25
% change year-on-year
+14.94% -3.33%
TDD
Hertfordshire

The following table is for comparison with the above and provides statistics for the entire Processes & Methodologies category in contract jobs advertised in the Welwyn Garden City region.

Processes & Methodologies Category
Welwyn Garden City
Contract IT job ads with a match in the
Processes & Methodologies category
76 26 35
As % of all contract IT jobs located in Welwyn Garden City 83.52% 78.79% 71.43%
Number of daily rates quoted 43 14 17
Median daily rate £550 £350 £288
Median daily rate % change year-on-year
+57.14% +21.73%
90% offered a daily rate of more than £245 £244 £238
10% offered a daily rate of more than £700 £575 £380
UK excluding London median daily rate £413 £400 £385
% change year-on-year
+3.12% +3.89%
Number of hourly rates quoted 1 2 4
Median hourly rate £31.00 £155.00 £16.20
Median hourly rate % change year-on-year
-80.00% +856.79%
UK excluding London median hourly rate £31.00 £34.95 £25.00
% change year-on-year
-11.30% +39.80%

TDD
Jobs Demand Trend in Welwyn Garden City

The demand trend of contract jobs across the Welwyn Garden City region citing TDD as a proportion of all IT contracts with a match in the Processes & Methodologies category.

TDD Jobs Demand Trend in Welwyn Garden City

TDD
Daily Rate Trend in Welwyn Garden City

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing TDD across the Welwyn Garden City region.

TDD Daily Rate Trend in Welwyn Garden City

TDD
Daily Rate Histogram in Welwyn Garden City

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Welwyn Garden City region over the 3 months to 6 December 2016.

TDD Daily Rate Histogram in Welwyn Garden City

TDD
Top 30 Related IT Skills in Welwyn Garden City

For the 6 months to 6 December 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 Welwyn Garden City region with a requirement for TDD.

1 14 (93.33%) Agile Software Development
1 14 (93.33%) Git (software)
1 14 (93.33%) BDD
2 13 (86.67%) JIRA
2 13 (86.67%) OO
3 12 (80.00%) Java
4 11 (73.33%) OOD
4 11 (73.33%) Software Engineering
4 11 (73.33%) QA
4 11 (73.33%) Amazon AWS
4 11 (73.33%) ATDD
4 11 (73.33%) Jenkins
4 11 (73.33%) Data Structures
4 11 (73.33%) Algorithms
4 11 (73.33%) DevOps
4 11 (73.33%) Complexity Analysis
5 10 (66.67%) Opscode Chef
5 10 (66.67%) Gradle
5 10 (66.67%) Ansible
5 10 (66.67%) Puppet
5 10 (66.67%) Maven
5 10 (66.67%) Ant
6 9 (60.00%) C#
6 9 (60.00%) Retail
6 9 (60.00%) Go
7 8 (53.33%) Clojure
7 8 (53.33%) Rust
8 4 (26.67%) JavaScript
9 3 (20.00%) .NET
9 3 (20.00%) CSS

TDD
Top Related IT Skills in Welwyn Garden City 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 2 (13.33%) IIS
2 1 (6.67%) Apache Spark
2 1 (6.67%) Elasticsearch
2 1 (6.67%) nginx
Cloud Services
1 11 (73.33%) Amazon AWS
2 1 (6.67%) Microsoft Azure
Communications & Networking
1 2 (13.33%) TCP/IP
Database & Business Intelligence
1 2 (13.33%) NoSQL
1 2 (13.33%) Relational Database
1 2 (13.33%) SQL Server
1 2 (13.33%) SQL Server 2012
2 1 (6.67%) Couchbase
2 1 (6.67%) Hadoop
2 1 (6.67%) MongoDB
2 1 (6.67%) MySQL
2 1 (6.67%) Redis
Development Applications
1 14 (93.33%) Git (software)
2 13 (86.67%) JIRA
3 11 (73.33%) Jenkins
4 10 (66.67%) Ant
4 10 (66.67%) Gradle
4 10 (66.67%) Maven
5 2 (13.33%) Atlassian Bamboo
5 2 (13.33%) FxCop
5 2 (13.33%) Moq
5 2 (13.33%) ReSharper
5 2 (13.33%) StyleCop
6 1 (6.67%) NUnit
6 1 (6.67%) SpecFlow
6 1 (6.67%) TeamCity
6 1 (6.67%) Vagrant
General
1 9 (60.00%) Retail
Job Titles
1 12 (80.00%) Developer
2 10 (66.67%) Java Developer
3 4 (26.67%) Lead Developer
3 4 (26.67%) Lead Java Developer
4 3 (20.00%) Software Engineer
5 2 (13.33%) .NET Developer
5 2 (13.33%) ASP.NET Developer
5 2 (13.33%) ASP.NET MVC Developer
5 2 (13.33%) C# .NET Developer
5 2 (13.33%) C# ASP.NET Developer
5 2 (13.33%) C# Developer
5 2 (13.33%) Cloud Developer
5 2 (13.33%) Java Engineer
5 2 (13.33%) Java Software Engineer
5 2 (13.33%) Senior Developer
5 2 (13.33%) Senior Java Developer
6 1 (6.67%) Developer/Software Engineer
6 1 (6.67%) Development Engineer
6 1 (6.67%) Java Scala Developer
6 1 (6.67%) Scala Developer
Libraries, Frameworks & Software Standards
1 3 (20.00%) .NET
1 3 (20.00%) .NET Framework
1 3 (20.00%) CSS
1 3 (20.00%) HTML
1 3 (20.00%) REST
2 2 (13.33%) ADO.NET
2 2 (13.33%) ASP.NET
2 2 (13.33%) ASP.NET MVC
2 2 (13.33%) ASP.NET Web API
2 2 (13.33%) AutoMapper
2 2 (13.33%) Dapper ORM
2 2 (13.33%) Entity Framework
2 2 (13.33%) LINQ
2 2 (13.33%) NHibernate
2 2 (13.33%) SOAP
2 2 (13.33%) WCF
2 2 (13.33%) XML
2 2 (13.33%) XSL
2 2 (13.33%) XSLT
3 1 (6.67%) Spring MVC
Miscellaneous
1 11 (73.33%) Algorithms
1 11 (73.33%) Data Structures
2 2 (13.33%) Contactless
2 2 (13.33%) EMV
2 2 (13.33%) FMCG
Operating Systems
1 1 (6.67%) Linux
Processes & Methodologies
1 14 (93.33%) Agile Software Development
1 14 (93.33%) BDD
2 13 (86.67%) OO
3 11 (73.33%) ATDD
3 11 (73.33%) Complexity Analysis
3 11 (73.33%) DevOps
3 11 (73.33%) OOD
3 11 (73.33%) Software Engineering
4 3 (20.00%) MVC
5 2 (13.33%) Code Coverage
5 2 (13.33%) Dependency Injection
5 2 (13.33%) E-Commerce
5 2 (13.33%) OOP
5 2 (13.33%) Refactoring
5 2 (13.33%) Scrum
5 2 (13.33%) SDLC
5 2 (13.33%) SOLID
6 1 (6.67%) Domain-Driven Design
6 1 (6.67%) Microservices
6 1 (6.67%) Web Development
Programming Languages
1 12 (80.00%) Java
2 9 (60.00%) C#
2 9 (60.00%) Go
3 8 (53.33%) Clojure
3 8 (53.33%) Rust
4 4 (26.67%) JavaScript
5 2 (13.33%) F#
5 2 (13.33%) SQL
5 2 (13.33%) VBScript
6 1 (6.67%) C++
6 1 (6.67%) Lua
6 1 (6.67%) Python
6 1 (6.67%) Scala
Quality Assurance & Compliance
1 11 (73.33%) QA
System Software
1 1 (6.67%) Docker
Systems Management
1 10 (66.67%) Ansible
1 10 (66.67%) Opscode Chef
1 10 (66.67%) Puppet
Vendors
1 2 (13.33%) Atlassian
2 1 (6.67%) CA
2 1 (6.67%) Oracle