The table below looks at the statistics for TDD skills in IT contracts advertised for the Wales region. Included is a guide to the contractor rates offered in IT contracts that have cited TDD over the 3 months to 18 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
18 Jan 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
UK / Wales
Rank 18 13 38
Rank change year-on-year
-5 +25
Contract jobs citing TDD 47 69 25
As % of all contract IT jobs located in Wales 7.39% 11.60% 3.89%
As % of the Processes & Methodologies category 9.27% 13.91% 5.18%
Number of daily rates quoted 31 57 15
Median daily rate £475 £328 £350
Median daily rate % change year-on-year
+45.03% -6.42%
90% offered a daily rate of more than £340 £316 £320
10% offered a daily rate of more than £575 £400 £475
UK excluding London median daily rate £423 £400 £375
% change year-on-year
+5.62% +6.66%
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 Wales region.

Processes & Methodologies Category
Wales
Contract IT job ads with a match in the
Processes & Methodologies category
507 496 483
As % of all contract IT jobs located in Wales 79.72% 83.36% 75.23%
Number of daily rates quoted 385 366 300
Median daily rate £405 £338 £375
Median daily rate % change year-on-year
+20.00% -10.00%
90% offered a daily rate of more than £186 £237 £220
10% offered a daily rate of more than £550 £425 £500
UK excluding London median daily rate £410 £400 £390
% change year-on-year
+2.50% +2.56%
Number of hourly rates quoted 18 18 17
Median hourly rate £40.00 £47.00 £22.50
Median hourly rate % change year-on-year
-14.89% +108.88%
90% offered a hourly rate of more than £15.25 £14.50 £11.00
10% offered a hourly rate of more than £55.00 £49.00 £28.50
UK excluding London median hourly rate £34.75 £39.00 £25.50
% change year-on-year
-10.89% +52.94%

TDD
Jobs Demand Trend in Wales

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

TDD Jobs Demand Trend in Wales

TDD
Daily Rate Trend in Wales

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

TDD Daily Rate Trend in Wales

TDD
Daily Rate Histogram in Wales

This chart provides a histogram of daily rates quoted in contract IT jobs citing TDD across the Wales region over the 3 months to 18 January 2017.

TDD Daily Rate Histogram in Wales

TDD
Hourly Rate Trend in Wales

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing TDD across the Wales region.

TDD Hourly Rate Trend in Wales

TDD
Contract Job Locations in Wales

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Wales region over the 3 months to 18 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
South Wales -5 39 £488 +49.42% 4
North Wales - 4 £340 - 3
West Wales - 2 £481 - 2
TDD
UK

TDD
Top 30 Related IT Skills in Wales

For the 6 months to 18 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 Wales region with a requirement for TDD.

1 124 (84.35%) Agile Software Development
2 100 (68.03%) BDD
3 85 (57.82%) Java
4 73 (49.66%) Scrum
5 40 (27.21%) Kanban
6 32 (21.77%) Relational Database
6 32 (21.77%) DevOps
7 31 (21.09%) Software Engineering
8 30 (20.41%) Continuous Integration
9 29 (19.73%) OWASP
9 29 (19.73%) JSON
10 27 (18.37%) Web Development
10 27 (18.37%) HTTP
10 27 (18.37%) Scala
11 26 (17.69%) Secure Coding
12 25 (17.01%) HTML
13 24 (16.33%) CSS
13 24 (16.33%) RESTful
14 21 (14.29%) Open Source
14 21 (14.29%) Security Cleared
15 20 (13.61%) JavaScript
15 20 (13.61%) Jenkins
16 19 (12.93%) Elasticsearch
16 19 (12.93%) REST
16 19 (12.93%) Python
17 18 (12.24%) OO
17 18 (12.24%) NoSQL
17 18 (12.24%) Cucumber
17 18 (12.24%) AngularJS
18 17 (11.56%) Amazon AWS

TDD
Top Related IT Skills in Wales 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 19 (12.93%) Elasticsearch
2 5 (3.40%) Apache Spark
2 5 (3.40%) Cloud Foundry
3 3 (2.04%) Adobe Experience Manager
3 3 (2.04%) Confluence
4 2 (1.36%) WebLogic
5 1 (0.68%) Apache Pig
Applications
1 1 (0.68%) Photoshop
Business Applications
1 4 (2.72%) SAP Oil and Gas
2 1 (0.68%) Dynamics CRM
Cloud Services
1 17 (11.56%) Amazon AWS
2 15 (10.20%) PaaS
3 11 (7.48%) Microsoft Azure
4 3 (2.04%) Cloud Computing
5 1 (0.68%) SaaS
Communications & Networking
1 27 (18.37%) HTTP
2 1 (0.68%) Kerberos
Database & Business Intelligence
1 32 (21.77%) Relational Database
2 18 (12.24%) NoSQL
3 12 (8.16%) Hadoop
4 10 (6.80%) MongoDB
5 9 (6.12%) Big Data
6 8 (5.44%) Apache Cassandra
7 5 (3.40%) SQL Server
8 4 (2.72%) Couchbase
8 4 (2.72%) SQL Server 2008
8 4 (2.72%) SQL Server 2012
9 3 (2.04%) Neo4j
10 2 (1.36%) Oracle Database
11 1 (0.68%) Apache Hive
11 1 (0.68%) HBase
11 1 (0.68%) MySQL
Development Applications
1 20 (13.61%) Jenkins
2 18 (12.24%) Cucumber
3 16 (10.88%) Git (software)
3 16 (10.88%) JIRA
3 16 (10.88%) Selenium
4 11 (7.48%) SpecFlow
5 10 (6.80%) JIRA Agile
6 6 (4.08%) Mercurial
6 6 (4.08%) Subversion
7 5 (3.40%) Bazaar
7 5 (3.40%) JUnit
7 5 (3.40%) NUnit
8 4 (2.72%) Jasmine
8 4 (2.72%) Visual Studio
9 3 (2.04%) Grunt
9 3 (2.04%) gulp
9 3 (2.04%) Mocha
9 3 (2.04%) Protractor
9 3 (2.04%) SoapUI
9 3 (2.04%) WebDriver
General
1 10 (6.80%) Publishing
2 7 (4.76%) Finance
3 5 (3.40%) Marketing
4 4 (2.72%) Electronics
4 4 (2.72%) Manufacturing
4 4 (2.72%) Telecoms
5 1 (0.68%) Welsh Language
Job Titles
1 97 (65.99%) Developer
2 51 (34.69%) Java Developer
3 21 (14.29%) Agile Developer
4 20 (13.61%) Agile Java Developer
5 15 (10.20%) Senior Developer
6 14 (9.52%) Scala Developer
6 14 (9.52%) Senior Java Developer
7 13 (8.84%) Scrum Master
8 11 (7.48%) Agile Scrum Master
8 11 (7.48%) Analyst
8 11 (7.48%) QA Analyst
9 10 (6.80%) Agile Coach
9 10 (6.80%) Front End Developer (Client-Side Developer)
9 10 (6.80%) Software Engineer
10 8 (5.44%) .NET Developer
11 6 (4.08%) Architect
11 6 (4.08%) Elasticsearch Developer
11 6 (4.08%) Java Engineer
12 5 (3.40%) DevOps Engineer
12 5 (3.40%) Quality Analyst
Libraries, Frameworks & Software Standards
1 29 (19.73%) JSON
2 25 (17.01%) HTML
3 24 (16.33%) CSS
3 24 (16.33%) RESTful
4 19 (12.93%) REST
5 18 (12.24%) AngularJS
6 13 (8.84%) Web Services
7 11 (7.48%) CSS3
7 11 (7.48%) HTML5
7 11 (7.48%) Node.js
8 10 (6.80%) jQuery
8 10 (6.80%) Velocity
9 9 (6.12%) .NET
9 9 (6.12%) ASP.NET Web API
10 5 (3.40%) ASP.NET
10 5 (3.40%) J2EE
10 5 (3.40%) Kafka
10 5 (3.40%) KnockoutJS
10 5 (3.40%) Spring
10 5 (3.40%) Swagger
Miscellaneous
1 8 (5.44%) Virtual Team
2 4 (2.72%) Analytical Skills
2 4 (2.72%) User Experience
3 3 (2.04%) Algorithms
3 3 (2.04%) Enterprise Software
3 3 (2.04%) Visualisation
4 1 (0.68%) Blog
4 1 (0.68%) Fintech
4 1 (0.68%) W3C
Operating Systems
1 9 (6.12%) Linux
2 3 (2.04%) Mac OS
3 1 (0.68%) Unix
Processes & Methodologies
1 124 (84.35%) Agile Software Development
2 100 (68.03%) BDD
3 73 (49.66%) Scrum
4 40 (27.21%) Kanban
5 32 (21.77%) DevOps
6 31 (21.09%) Software Engineering
7 30 (20.41%) Continuous Integration
8 29 (19.73%) OWASP
9 27 (18.37%) Web Development
10 26 (17.69%) Secure Coding
11 21 (14.29%) Open Source
12 18 (12.24%) OO
13 15 (10.20%) High Availability
13 15 (10.20%) Low Latency
13 15 (10.20%) Test Automation
14 14 (9.52%) Automated Testing
15 12 (8.16%) API Design
15 12 (8.16%) Coaching
15 12 (8.16%) Front End Development
15 12 (8.16%) Performance Testing
Programming Languages
1 85 (57.82%) Java
2 27 (18.37%) Scala
3 20 (13.61%) JavaScript
4 19 (12.93%) Python
5 9 (6.12%) C#
6 8 (5.44%) Go
7 7 (4.76%) Ruby
8 5 (3.40%) SQL
9 4 (2.72%) TypeScript
10 1 (0.68%) PHP
10 1 (0.68%) R
Qualifications
1 21 (14.29%) Security Cleared
2 14 (9.52%) SC Cleared
3 1 (0.68%) BPSS Clearance
Quality Assurance & Compliance
1 15 (10.20%) QA
2 3 (2.04%) Disclosure Scotland
3 1 (0.68%) WAI
3 1 (0.68%) WCAG
System Software
1 9 (6.12%) Docker
2 1 (0.68%) HDFS
2 1 (0.68%) vCloud
Systems Management
1 7 (4.76%) Ansible
2 1 (0.68%) Opscode Chef
2 1 (0.68%) Puppet
Vendors
1 9 (6.12%) Oracle
2 7 (4.76%) SAP
3 6 (4.08%) Cloudera
4 3 (2.04%) HP
4 3 (2.04%) Teradata
5 1 (0.68%) Google
5 1 (0.68%) Hortonworks
5 1 (0.68%) Microsoft