Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in South Wales with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 18 November 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
Wales > South Wales
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 45 9 21
Rank change year-on-year -36 +12 +1
Contract jobs citing TDD 32 120 121
As % of all contract IT jobs advertised in South Wales 3.37% 10.66% 9.42%
As % of the Processes & Methodologies category 4.04% 12.75% 11.60%
Number of daily rates quoted 24 92 99
South Wales median daily rate £425 £475 £400
Median daily rate % change year-on-year -10.53% +18.75% -
10th Percentile £327 £375 £300
90th Percentile £485 £549 £526
Wales median daily rate £425 £475 £400
% change year-on-year -10.53% +18.75% -3.03%
Number of hourly rates quoted 0 0 2
South Wales median hourly rate - - £43.50
Wales median hourly rate - - £43.50

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in South Wales with a requirement for process or methodology skills.

All Process and Methodology Skills
South Wales
Contract vacancies with a requirement for process or methodology skills 792 941 1043
As % of all contract IT jobs advertised in South Wales 83.37% 83.57% 81.17%
Number of daily rates quoted 534 675 807
South Wales median daily rate £375 £400 £350
Median daily rate % change year-on-year -6.25% +14.29% -
10th Percentile £175 £222 £229
90th Percentile £525 £538 £475
Wales median daily rate £388 £400 £360
% change year-on-year -3.13% +11.27% -1.51%
Number of hourly rates quoted 34 43 34
South Wales median hourly rate £20.69 £18.75 £15.88
Median hourly rate % change year-on-year +10.35% +18.11% +9.48%
10th Percentile £13.00 £10.45 £9.58
90th Percentile £51.00 £61.25 £35.33
Wales median hourly rate £20.69 £18.00 £15.75
% change year-on-year +14.94% +14.29% -1.56%

TDD
Job Vacancy Trend in South Wales

Job postings citing TDD as a percentage of all IT jobs advertised in South Wales.

Job vacancy trend for TDD in South Wales

TDD
Contractor Daily Rate Trend in South Wales

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

Contractor daily rate trend for TDD in South Wales

TDD
Contractor Daily Rate Histogram in South Wales

The daily rate distribution of IT jobs citing TDD in South Wales over the 6 months to 18 November 2017.

Contractor daily rate histogram for TDD in South Wales

TDD
Contractor Hourly Rate Trend in South Wales

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

Contractor hourly rate trend for TDD in South Wales

TDD
Contract Job Locations in South 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 South Wales region over the 6 months to 18 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Cardiff -5 30 £425 -10.53% 6
Newport -20 2 £525 +9.09% 1
TDD
Wales

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

1 23 (71.88%) Agile Software Development
2 21 (65.63%) Test Automation
3 19 (59.38%) JavaScript
4 18 (56.25%) BDD
5 17 (53.13%) HTML5
5 17 (53.13%) HTML
5 17 (53.13%) CSS
6 16 (50.00%) Scrum
6 16 (50.00%) CSS3
7 15 (46.88%) Node.js
7 15 (46.88%) JSON
8 14 (43.75%) Ajax
8 14 (43.75%) Git (software)
9 13 (40.63%) Unit Testing
10 12 (37.50%) Responsive Web Design
10 12 (37.50%) Grunt
10 12 (37.50%) Finance
10 12 (37.50%) gulp
11 11 (34.38%) npm
11 11 (34.38%) SonarQube
12 10 (31.25%) Perforce
12 10 (31.25%) React
12 10 (31.25%) Performance Optimisation
13 9 (28.13%) Continuous Integration
14 8 (25.00%) Java
15 7 (21.88%) OO
15 7 (21.88%) Banking
16 6 (18.75%) AngularJS
16 6 (18.75%) Front End Development
17 5 (15.63%) Cucumber

TDD
Co-occurring IT Skills in South 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 1 (3.13%) IIS
Cloud Services
1 11 (34.38%) npm
2 1 (3.13%) Amazon AWS
2 1 (3.13%) Amazon CloudWatch
2 1 (3.13%) Amazon EC2
Communications & Networking
1 1 (3.13%) SMS
Database & Business Intelligence
1 4 (12.50%) SQL Server
2 3 (9.38%) RDBMS
2 3 (9.38%) Relational Database
3 1 (3.13%) Amazon DynamoDB
3 1 (3.13%) PostgreSQL
3 1 (3.13%) SQL Server 2012
Development Applications
1 14 (43.75%) Git (software)
2 12 (37.50%) Grunt
2 12 (37.50%) gulp
3 11 (34.38%) SonarQube
4 5 (15.63%) Cucumber
5 3 (9.38%) Eclipse
5 3 (9.38%) Gradle
5 3 (9.38%) JProfiler
5 3 (9.38%) JUnit
6 2 (6.25%) Jenkins
6 2 (6.25%) NUnit
6 2 (6.25%) Selenium
6 2 (6.25%) webpack
7 1 (3.13%) JIRA
7 1 (3.13%) Subversion
7 1 (3.13%) Visual Studio
7 1 (3.13%) Xcode
General
1 12 (37.50%) Finance
2 7 (21.88%) Banking
3 2 (6.25%) Retail
4 1 (3.13%) Retail Banking
4 1 (3.13%) Telecoms
Job Titles
1 22 (68.75%) Developer
2 9 (28.13%) UI Developer
3 6 (18.75%) Front End Developer (Client-Side Developer)
4 4 (12.50%) Full Stack Developer
4 4 (12.50%) JavaScript Developer
5 3 (9.38%) .NET Developer
5 3 (9.38%) Scrum Master
6 2 (6.25%) Android Developer
6 2 (6.25%) C# .NET Developer
6 2 (6.25%) C# Developer
6 2 (6.25%) HTML CSS Developer
6 2 (6.25%) HTML Developer
6 2 (6.25%) Java Developer
6 2 (6.25%) Senior Developer
7 1 (3.13%) Agile Scrum Master
7 1 (3.13%) Angular Developer
7 1 (3.13%) AWS Software Engineer
7 1 (3.13%) Banking Analyst
7 1 (3.13%) Business Analyst
7 1 (3.13%) Software Engineer
Libraries, Frameworks & Software Standards
1 17 (53.13%) CSS
1 17 (53.13%) HTML
1 17 (53.13%) HTML5
2 16 (50.00%) CSS3
3 15 (46.88%) JSON
3 15 (46.88%) Node.js
4 14 (43.75%) Ajax
5 10 (31.25%) React
6 6 (18.75%) AngularJS
7 4 (12.50%) XML
8 3 (9.38%) .NET
8 3 (9.38%) Angular 2
8 3 (9.38%) ASP.NET Web API
8 3 (9.38%) Hibernate
8 3 (9.38%) J2EE
8 3 (9.38%) JPA
8 3 (9.38%) jQuery
8 3 (9.38%) REST
8 3 (9.38%) Spring
8 3 (9.38%) XSLT
Miscellaneous
1 2 (6.25%) Computer Science
1 2 (6.25%) User Experience
2 1 (3.13%) Analytical Skills
2 1 (3.13%) Greenfield Project
Operating Systems
1 2 (6.25%) Android
2 1 (3.13%) Apple iOS
Processes & Methodologies
1 23 (71.88%) Agile Software Development
2 21 (65.63%) Test Automation
3 18 (56.25%) BDD
4 16 (50.00%) Scrum
5 13 (40.63%) Unit Testing
6 12 (37.50%) Responsive Web Design
7 10 (31.25%) Performance Optimisation
8 9 (28.13%) Continuous Integration
9 7 (21.88%) OO
10 6 (18.75%) Front End Development
11 4 (12.50%) Data Protection
11 4 (12.50%) Mobile Development
11 4 (12.50%) Software Delivery
11 4 (12.50%) Software Engineering
12 3 (9.38%) Coaching
12 3 (9.38%) Data Modelling
12 3 (9.38%) Domain-Driven Design
12 3 (9.38%) E-Commerce
12 3 (9.38%) RAD
12 3 (9.38%) SDLC
Programming Languages
1 19 (59.38%) JavaScript
2 8 (25.00%) Java
3 4 (12.50%) SQL
4 3 (9.38%) C#
5 2 (6.25%) ES6
6 1 (3.13%) Apple Swift
6 1 (3.13%) Kotlin
6 1 (3.13%) Objective-C
Qualifications
1 1 (3.13%) Computer Science Degree
1 1 (3.13%) Degree
1 1 (3.13%) SC Cleared
1 1 (3.13%) Security Cleared
Quality Assurance & Compliance
1 1 (3.13%) QA
1 1 (3.13%) WCAG
Systems Management
1 1 (3.13%) Business Desktop Deployment
Vendors
1 10 (31.25%) Perforce
2 3 (9.38%) Oracle
3 1 (3.13%) Apple