Period
to 20 January 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 20 January 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Wales
6 months to
20 Jan 2019
Same period 2018 Same period 2017
Rank 35 25 31
Rank change year-on-year -10 +6 +19
Permanent jobs citing TDD 106 160 168
As % of all permanent IT jobs advertised in Wales 5.60% 8.34% 7.01%
As % of the Processes & Methodologies category 6.34% 8.99% 7.73%
Number of salaries quoted 87 157 163
Wales median annual salary £45,000 £40,000 £35,000
Median salary % change year-on-year +12.50% +14.29% -6.67%
10th Percentile £32,500 £28,342 £24,250
90th Percentile £63,750 £50,000 £59,600
UK median annual salary £55,000 £50,000 £50,000
% change year-on-year +10.00% - -

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 1,673 1,780 2,173
As % of all permanent IT jobs advertised in Wales 88.33% 92.81% 90.69%
Number of salaries quoted 1,357 1,467 1,855
Wales median annual salary £40,000 £40,000 £37,500
Median salary % change year-on-year - +6.67% +4.17%
10th Percentile £26,250 £24,250 £22,500
90th Percentile £62,500 £55,710 £56,250
UK median annual salary £52,500 £50,000 £47,500
% change year-on-year +5.00% +5.26% -

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 20 January 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 20 January 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 -4 99 £46,250 +15.63% 25
Mid Wales +27 4 £36,000 -15.29%
West Wales -24 2 £36,250 -9.38% 4
North Wales -9 1 £55,000 +37.50% 1
TDD
UK

For the 6 months to 20 January 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 92 (86.79%) Agile Software Development
2 54 (50.94%) C#
3 51 (48.11%) JavaScript
3 51 (48.11%) Scrum
4 48 (45.28%) .NET
5 38 (35.85%) Continuous Integration
6 37 (34.91%) Java
7 35 (33.02%) BDD
8 34 (32.08%) Software Engineering
9 33 (31.13%) SQL
9 33 (31.13%) AngularJS
10 32 (30.19%) Git (software)
10 32 (30.19%) HTML
10 32 (30.19%) CSS
11 29 (27.36%) Test Automation
12 28 (26.42%) OO
13 27 (25.47%) Mentoring
14 25 (23.58%) React
15 24 (22.64%) Fintech
15 24 (22.64%) Unit Testing
15 24 (22.64%) NoSQL
16 23 (21.70%) Selenium
17 22 (20.75%) Finance
17 22 (20.75%) Amazon AWS
18 21 (19.81%) ASP.NET
18 21 (19.81%) PHP
19 20 (18.87%) SQL Server
19 20 (18.87%) Technical Leadership
20 19 (17.92%) Team Foundation Server
20 19 (17.92%) REST

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 4 (3.77%) Confluence
1 4 (3.77%) Elasticsearch
2 2 (1.89%) Apache
2 2 (1.89%) Liferay
2 2 (1.89%) nginx
3 1 (0.94%) OpenStack
3 1 (0.94%) SharePoint
Cloud Services
1 22 (20.75%) Amazon AWS
2 9 (8.49%) Microsoft Azure
3 8 (7.55%) npm
4 3 (2.83%) Cloud Computing
5 2 (1.89%) IaaS
5 2 (1.89%) PaaS
6 1 (0.94%) Dynamics 365
6 1 (0.94%) GitHub
6 1 (0.94%) Google Cloud Platform
6 1 (0.94%) SaaS
6 1 (0.94%) Slack
6 1 (0.94%) Trello
Communications & Networking
1 4 (3.77%) Internet
2 1 (0.94%) Firewall
2 1 (0.94%) Hyperconnected
2 1 (0.94%) SMS
Database & Business Intelligence
1 24 (22.64%) NoSQL
2 20 (18.87%) SQL Server
3 7 (6.60%) MongoDB
3 7 (6.60%) SQL Server 2016
4 6 (5.66%) PostgreSQL
4 6 (5.66%) Relational Database
5 5 (4.72%) Couchbase
5 5 (4.72%) MySQL
5 5 (4.72%) SQL Server 2012
6 4 (3.77%) Redis
7 3 (2.83%) Amazon DynamoDB
7 3 (2.83%) Cosmos DB
7 3 (2.83%) Hazelcast
8 2 (1.89%) Data Warehouse
8 2 (1.89%) SQL Server 2008
9 1 (0.94%) Apache Cassandra
9 1 (0.94%) Neo4j
9 1 (0.94%) SQL Server Reporting Services
Development Applications
1 32 (30.19%) Git (software)
2 23 (21.70%) Selenium
3 19 (17.92%) Team Foundation Server
4 13 (12.26%) JIRA
5 12 (11.32%) Cucumber
6 11 (10.38%) JMeter
6 11 (10.38%) webpack
7 9 (8.49%) SoapUI
8 8 (7.55%) gulp
8 8 (7.55%) Maven
9 5 (4.72%) JUnit
9 5 (4.72%) Subversion
9 5 (4.72%) Visual Studio
10 4 (3.77%) Protractor
10 4 (3.77%) TeamCity
10 4 (3.77%) WebDriver
11 3 (2.83%) Jenkins
11 3 (2.83%) Pylint
11 3 (2.83%) Visual Studio Team System
12 2 (1.89%) SpecFlow
General
1 22 (20.75%) Finance
2 16 (15.09%) Marketing
3 6 (5.66%) Games
4 3 (2.83%) Back Office
4 3 (2.83%) Retail
5 2 (1.89%) Retail Finance
6 1 (0.94%) Law
Job Titles
1 61 (57.55%) Developer
2 24 (22.64%) Software Engineer
3 21 (19.81%) Senior Software Engineer
4 18 (16.98%) .NET Developer
5 16 (15.09%) C# Developer
6 14 (13.21%) Java Developer
7 13 (12.26%) C# .NET Developer
8 12 (11.32%) Software Developer
9 9 (8.49%) Python Developer
10 8 (7.55%) .NET Software Developer
10 8 (7.55%) C# Software Developer
10 8 (7.55%) Java Engineer
10 8 (7.55%) QA Engineer
10 8 (7.55%) Senior Developer
11 6 (5.66%) PHP Developer
12 5 (4.72%) ASP.NET MVC Developer
12 5 (4.72%) Automation Engineer
12 5 (4.72%) Principal Developer
12 5 (4.72%) QA Automation Engineer
13 4 (3.77%) Backend Developer
Libraries, Frameworks & Software Standards
1 48 (45.28%) .NET
2 33 (31.13%) AngularJS
3 32 (30.19%) CSS
3 32 (30.19%) HTML
4 25 (23.58%) React
5 21 (19.81%) ASP.NET
6 19 (17.92%) REST
7 18 (16.98%) .NET Framework
7 18 (16.98%) jQuery
8 17 (16.04%) Web Services
9 16 (15.09%) HTML5
10 14 (13.21%) Spring
11 13 (12.26%) Node.js
11 13 (12.26%) Sass
12 11 (10.38%) Redux
12 11 (10.38%) XML
12 11 (10.38%) XSLT
13 10 (9.43%) ASP.NET Web API
13 10 (9.43%) Spring Boot
13 10 (9.43%) WCF
Miscellaneous
1 24 (22.64%) Fintech
2 18 (16.98%) Digital Media
3 13 (12.26%) Self-Motivation
4 12 (11.32%) Analytical Skills
5 11 (10.38%) Analytical Mindset
6 10 (9.43%) Enterprise Software
7 4 (3.77%) Cloud Native
7 4 (3.77%) Greenfield Project
7 4 (3.77%) User Experience
8 3 (2.83%) Animation
8 3 (2.83%) Virtual Team
9 2 (1.89%) Mobile App
9 2 (1.89%) Social Media
10 1 (0.94%) BBC
10 1 (0.94%) Cyberattack
10 1 (0.94%) Digital TV
10 1 (0.94%) Video\Live Streaming
Operating Systems
1 12 (11.32%) Linux
2 8 (7.55%) Android
3 7 (6.60%) Apple iOS
4 6 (5.66%) Unix
Processes & Methodologies
1 92 (86.79%) Agile Software Development
2 51 (48.11%) Scrum
3 38 (35.85%) Continuous Integration
4 35 (33.02%) BDD
5 34 (32.08%) Software Engineering
6 29 (27.36%) Test Automation
7 28 (26.42%) OO
8 27 (25.47%) Mentoring
9 24 (22.64%) Unit Testing
10 20 (18.87%) Technical Leadership
11 18 (16.98%) MVC
12 17 (16.04%) E-Commerce
12 17 (16.04%) Functional Programming
12 17 (16.04%) Microservices
13 16 (15.09%) Affiliate Marketing
13 16 (15.09%) Continuous Delivery
13 16 (15.09%) SOLID
14 15 (14.15%) Problem-Solving
15 12 (11.32%) Front End Development
15 12 (11.32%) Web Application Development
Programming Languages
1 54 (50.94%) C#
2 51 (48.11%) JavaScript
3 37 (34.91%) Java
4 33 (31.13%) SQL
5 21 (19.81%) PHP
6 13 (12.26%) Python
7 9 (8.49%) ES6
8 8 (7.55%) Go
8 8 (7.55%) T-SQL
8 8 (7.55%) TypeScript
9 6 (5.66%) Java 8
10 3 (2.83%) C++
10 3 (2.83%) Clojure
10 3 (2.83%) Groovy
10 3 (2.83%) Ruby
10 3 (2.83%) Scala
10 3 (2.83%) XPath
11 2 (1.89%) C
11 2 (1.89%) PHP 5
12 1 (0.94%) VB.NET
Qualifications
1 10 (9.43%) Degree
2 5 (4.72%) Computer Science Degree
3 1 (0.94%) SC Cleared
3 1 (0.94%) Security Cleared
Quality Assurance & Compliance
1 14 (13.21%) QA
2 2 (1.89%) GDPR
System Software
1 10 (9.43%) Docker
2 2 (1.89%) Varnish
Systems Management
1 5 (4.72%) Kubernetes
2 1 (0.94%) Ansible
2 1 (0.94%) Puppet
Vendors
1 12 (11.32%) Microsoft
2 7 (6.60%) Oracle
3 4 (3.77%) SAP
4 2 (1.89%) Google
5 1 (0.94%) Apple
5 1 (0.94%) Atlassian
5 1 (0.94%) Facebook
5 1 (0.94%) Perforce
5 1 (0.94%) Sony
5 1 (0.94%) Yahoo!