Period
to 14 November 2019

The following table provides summary statistics for permanent job vacancies advertised in Wales with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 14 November 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Wales
6 months to
14 Nov 2019
Same period 2018 Same period 2017
Rank 48 28 36
Rank change year-on-year -20 +8 +3
Permanent jobs citing TDD 93 156 134
As % of all permanent IT jobs advertised in Wales 4.79% 7.57% 6.56%
As % of the Processes & Methodologies category 5.34% 8.46% 7.04%
Number of salaries quoted 83 134 129
Wales median annual salary £47,500 £45,000 £40,000
Median salary % change year-on-year +5.56% +12.50% +14.29%
10th Percentile £31,500 £33,000 £28,100
90th Percentile £65,000 £63,375 £52,500
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +5.00%

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

All Process and Methodology Skills
Wales
Permanent vacancies with a requirement for process or methodology skills 1,742 1,844 1,903
As % of all permanent IT jobs advertised in Wales 89.70% 89.47% 93.15%
Number of salaries quoted 1,470 1,485 1,636
Wales median annual salary £42,500 £40,000 £40,000
Median salary % change year-on-year +6.25% - +6.67%
10th Percentile £26,750 £25,470 £23,500
90th Percentile £65,000 £62,950 £56,375
UK median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - +4.17%

TDD
Job Vacancy Trend in Wales

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

Job vacancy trend for TDD in Wales

TDD
Salary Trend in Wales

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Wales.

Salary trend for TDD in Wales

TDD
Salary Histogram in Wales

The salary distribution of IT jobs citing TDD in Wales over the 6 months to 14 November 2019.

Salary histogram for TDD in Wales

TDD
Job Locations in Wales

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Wales region over the 6 months to 14 November 2019. 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
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
South Wales -20 79 £47,500 +5.56% 13
North Wales +7 7 £40,000 -15.79% 1
Mid Wales +19 4 £55,000 +52.78% 2
West Wales +14 3 £37,500 -6.25% 4
TDD
UK

For the 6 months to 14 November 2019, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Wales region with a requirement for TDD.

1 53 (56.99%) BDD
2 52 (55.91%) .NET
2 52 (55.91%) Agile Software Development
3 45 (48.39%) C#
3 45 (48.39%) JavaScript
4 36 (38.71%) SQL
5 33 (35.48%) NoSQL
6 31 (33.33%) SOLID
7 23 (24.73%) MVC
7 23 (24.73%) Scrum
8 22 (23.66%) Java
9 20 (21.51%) Continuous Integration
10 16 (17.20%) MySQL
10 16 (17.20%) Git (software)
10 16 (17.20%) RESTful
10 16 (17.20%) Microservices
11 15 (16.13%) Azure
11 15 (16.13%) Python
12 14 (15.05%) PHP
12 14 (15.05%) Microsoft
13 13 (13.98%) Software Engineering
13 13 (13.98%) Node.js
13 13 (13.98%) DevOps
14 12 (12.90%) Test Automation
15 11 (11.83%) Mentoring
15 11 (11.83%) ASP.NET Web API
15 11 (11.83%) OO
16 10 (10.75%) HTML
16 10 (10.75%) Hibernate
16 10 (10.75%) Spring

TDD
Co-occurring 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 6 (6.45%) SharePoint
2 4 (4.30%) CMS
2 4 (4.30%) Umbraco
3 2 (2.15%) Apache
3 2 (2.15%) Apache Spark
3 2 (2.15%) IIS
3 2 (2.15%) WordPress
4 1 (1.08%) JBoss
4 1 (1.08%) Tomcat
4 1 (1.08%) WebLogic
4 1 (1.08%) WebSphere
Cloud Services
1 15 (16.13%) Azure
2 9 (9.68%) AWS
3 3 (3.23%) Serverless
4 1 (1.08%) Amazon S3
4 1 (1.08%) GCP
Communications & Networking
1 2 (2.15%) Internet
2 1 (1.08%) Hyperconnected
Database & Business Intelligence
1 33 (35.48%) NoSQL
2 16 (17.20%) MySQL
3 6 (6.45%) SQL Server
3 6 (6.45%) SQL Server 2016
4 4 (4.30%) MongoDB
5 3 (3.23%) Relational Database
6 1 (1.08%) Data Warehouse
6 1 (1.08%) MariaDB
Development Applications
1 16 (17.20%) Git (software)
2 8 (8.60%) Maven
3 5 (5.38%) Jenkins
3 5 (5.38%) JUnit
4 4 (4.30%) Gradle
4 4 (4.30%) Visual Studio
4 4 (4.30%) Visual Studio Team System
5 3 (3.23%) IntelliJ
5 3 (3.23%) Mockito
5 3 (3.23%) Selenium
6 2 (2.15%) PHPUnit
6 2 (2.15%) Subversion
6 2 (2.15%) Team Foundation Server
7 1 (1.08%) WebDriver
7 1 (1.08%) webpack
General
1 6 (6.45%) Retail
2 4 (4.30%) Finance
3 2 (2.15%) Marketing
4 1 (1.08%) Automotive
4 1 (1.08%) Banking
Job Titles
1 76 (81.72%) Developer
2 38 (40.86%) .NET Developer
3 13 (13.98%) Full Stack Developer
3 13 (13.98%) Java Developer
4 10 (10.75%) C# .NET Developer
4 10 (10.75%) C# Developer
4 10 (10.75%) PHP Developer
4 10 (10.75%) Software Engineer
5 7 (7.53%) Software Developer
6 6 (6.45%) Senior Developer
7 5 (5.38%) .NET Programmer
7 5 (5.38%) C# Programmer
7 5 (5.38%) Programmer
8 4 (4.30%) Senior .NET Developer
8 4 (4.30%) Senior C# .NET Developer
8 4 (4.30%) Senior C# Developer
9 3 (3.23%) ASP.NET Developer
9 3 (3.23%) C# ASP.NET Developer
9 3 (3.23%) Lead Developer
9 3 (3.23%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 52 (55.91%) .NET
2 16 (17.20%) RESTful
3 13 (13.98%) Node.js
4 11 (11.83%) ASP.NET Web API
5 10 (10.75%) Hibernate
5 10 (10.75%) HTML
5 10 (10.75%) Spring
6 9 (9.68%) AngularJS
6 9 (9.68%) ASP.NET
6 9 (9.68%) CSS
6 9 (9.68%) Web Services
7 8 (8.60%) .NET Framework
8 7 (7.53%) WCF
9 6 (6.45%) .NET Core
9 6 (6.45%) ASP.NET MVC
9 6 (6.45%) React
9 6 (6.45%) Symfony
10 5 (5.38%) Doctrine
10 5 (5.38%) JPA
10 5 (5.38%) Laravel
Miscellaneous
1 7 (7.53%) User Experience
2 6 (6.45%) Greenfield Project
3 4 (4.30%) Enterprise Software
4 2 (2.15%) Public Cloud
4 2 (2.15%) Self-Motivation
4 2 (2.15%) Social Media
5 1 (1.08%) Analytical Mindset
5 1 (1.08%) Analytical Skills
5 1 (1.08%) BBC
5 1 (1.08%) Digital Media
Operating Systems
1 1 (1.08%) Android
1 1 (1.08%) Apple iOS
1 1 (1.08%) Windows
Processes & Methodologies
1 53 (56.99%) BDD
2 52 (55.91%) Agile Software Development
3 31 (33.33%) SOLID
4 23 (24.73%) MVC
4 23 (24.73%) Scrum
5 20 (21.51%) Continuous Integration
6 16 (17.20%) Microservices
7 13 (13.98%) DevOps
7 13 (13.98%) Software Engineering
8 12 (12.90%) Test Automation
9 11 (11.83%) Mentoring
9 11 (11.83%) OO
10 10 (10.75%) Pair Programming
10 10 (10.75%) Web Application Development
11 8 (8.60%) SDLC
12 7 (7.53%) Fintech
13 6 (6.45%) Collaborative Working
13 6 (6.45%) E-Commerce
13 6 (6.45%) OOP
14 5 (5.38%) Business Intelligence
Programming Languages
1 45 (48.39%) C#
1 45 (48.39%) JavaScript
2 36 (38.71%) SQL
3 22 (23.66%) Java
4 15 (16.13%) Python
5 14 (15.05%) PHP
6 5 (5.38%) Java 8
7 4 (4.30%) Ruby
8 2 (2.15%) C++
8 2 (2.15%) TypeScript
8 2 (2.15%) VB
9 1 (1.08%) Clojure
9 1 (1.08%) Elixir
9 1 (1.08%) Erlang
9 1 (1.08%) Haskell
Qualifications
1 1 (1.08%) Degree
1 1 (1.08%) ISEB
1 1 (1.08%) ISTQB
Quality Assurance & Compliance
1 1 (1.08%) QA
System Software
1 2 (2.15%) Docker
Vendors
1 14 (15.05%) Microsoft
2 2 (2.15%) Google
3 1 (1.08%) Apple
3 1 (1.08%) Facebook
3 1 (1.08%) Sony
3 1 (1.08%) Yahoo!
3 1 (1.08%) Zend