Period
to 18 October 2018

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 18 October 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Wales
6 months to
18 Oct 2018
Same period 2017 Same period 2016
Rank 27 48 41
Rank change year-on-year +21 -7 +13
Permanent jobs citing TDD 157 101 146
As % of all permanent IT jobs advertised in Wales 7.74% 5.19% 5.50%
As % of the Processes & Methodologies category 8.68% 5.61% 6.11%
Number of salaries quoted 136 95 141
Wales median annual salary £45,000 £40,000 £35,000
Median salary % change year-on-year +12.50% +14.29% -6.67%
10th Percentile £32,750 £28,250 £24,250
90th Percentile £58,375 £52,500 £57,500
UK median annual salary £55,000 £52,500 £51,500
% change year-on-year +4.76% +1.94% +4.04%

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 1,809 1,801 2,388
As % of all permanent IT jobs advertised in Wales 89.20% 92.50% 89.94%
Number of salaries quoted 1,466 1,554 2,025
Wales median annual salary £40,000 £40,000 £37,500
Median salary % change year-on-year - +6.67% +2.74%
10th Percentile £25,000 £24,075 £22,500
90th Percentile £62,500 £57,500 £55,000
UK median annual salary £50,000 £50,000 £48,000
% change year-on-year - +4.17% +1.05%

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 18 October 2018.

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 18 October 2018. 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 +20 144 £45,000 +12.50% 22
West Wales +1 8 £40,000 - 2
North Wales -7 4 £47,500 +18.75% 2
Mid Wales -8 1 £36,000 -15.29%
TDD
UK

For the 6 months to 18 October 2018, 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.

1 115 (73.25%) Agile Software Development
2 77 (49.04%) BDD
3 72 (45.86%) Java
3 72 (45.86%) Scrum
4 63 (40.13%) Continuous Integration
5 61 (38.85%) C#
6 55 (35.03%) Test Automation
7 48 (30.57%) .NET
8 46 (29.30%) JavaScript
9 42 (26.75%) SQL
9 42 (26.75%) REST
10 41 (26.11%) Software Engineering
11 40 (25.48%) Selenium
12 35 (22.29%) AngularJS
13 34 (21.66%) QA
14 32 (20.38%) NoSQL
14 32 (20.38%) Web Services
15 31 (19.75%) HTML
15 31 (19.75%) Cucumber
16 30 (19.11%) Git (software)
17 29 (18.47%) CSS
18 27 (17.20%) SQL Server
18 27 (17.20%) MVC
18 27 (17.20%) Spring
19 26 (16.56%) Unit Testing
20 24 (15.29%) Microservices
20 24 (15.29%) Problem-Solving
21 23 (14.65%) Acceptance Criteria
21 23 (14.65%) React
21 23 (14.65%) Web Application Development

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 7 (4.46%) Confluence
1 7 (4.46%) Elasticsearch
2 3 (1.91%) Liferay
3 2 (1.27%) Apache
3 2 (1.27%) Apache Spark
3 2 (1.27%) OpenStack
3 2 (1.27%) Tomcat
4 1 (0.64%) Anypoint
4 1 (0.64%) Apache Airflow
4 1 (0.64%) Apache Pig
4 1 (0.64%) Cloud Foundry
4 1 (0.64%) IIS
4 1 (0.64%) nginx
4 1 (0.64%) SAS
Cloud Services
1 23 (14.65%) Amazon AWS
2 12 (7.64%) Microsoft Azure
3 5 (3.18%) Cloud Computing
3 5 (3.18%) GitHub
4 4 (2.55%) Google Cloud Platform
4 4 (2.55%) PaaS
4 4 (2.55%) Slack
4 4 (2.55%) Trello
5 3 (1.91%) IaaS
5 3 (1.91%) Serverless
6 2 (1.27%) Dynamics 365
6 2 (1.27%) npm
7 1 (0.64%) Apigee
7 1 (0.64%) SaaS
Communications & Networking
1 9 (5.73%) Internet
2 3 (1.91%) Hyperconnected
3 1 (0.64%) Firewall
3 1 (0.64%) SSL
Database & Business Intelligence
1 32 (20.38%) NoSQL
2 27 (17.20%) SQL Server
3 14 (8.92%) SQL Server 2016
4 11 (7.01%) MongoDB
5 9 (5.73%) MySQL
6 8 (5.10%) Relational Database
7 5 (3.18%) PostgreSQL
8 4 (2.55%) Data Warehouse
9 3 (1.91%) Big Data
9 3 (1.91%) Redis
9 3 (1.91%) SQL Server 2012
10 2 (1.27%) Amazon DynamoDB
10 2 (1.27%) Apache Cassandra
10 2 (1.27%) Cosmos DB
11 1 (0.64%) Amazon Redshift
11 1 (0.64%) Apache Hive
11 1 (0.64%) Hadoop
11 1 (0.64%) Presto
11 1 (0.64%) SAP HANA
11 1 (0.64%) SQL Server Reporting Services
Development Applications
1 40 (25.48%) Selenium
2 31 (19.75%) Cucumber
3 30 (19.11%) Git (software)
4 23 (14.65%) JUnit
5 19 (12.10%) Protractor
5 19 (12.10%) WebDriver
6 18 (11.46%) JIRA
7 16 (10.19%) JMeter
8 15 (9.55%) SoapUI
9 9 (5.73%) Maven
9 9 (5.73%) Subversion
10 7 (4.46%) Team Foundation Server
11 5 (3.18%) Jenkins
11 5 (3.18%) webpack
12 3 (1.91%) CircleCI
12 3 (1.91%) TeamCity
13 2 (1.27%) Ant
13 2 (1.27%) Atlassian Bamboo
13 2 (1.27%) Babel
13 2 (1.27%) TestNG
General
1 17 (10.83%) Finance
2 5 (3.18%) Marketing
2 5 (3.18%) Retail
3 4 (2.55%) Banking
3 4 (2.55%) Law
4 3 (1.91%) Investment Banking
4 3 (1.91%) Legal
5 2 (1.27%) Advertising
5 2 (1.27%) Telecoms
6 1 (0.64%) Back Office
6 1 (0.64%) Games
Job Titles
1 93 (59.24%) Developer
2 26 (16.56%) .NET Developer
2 26 (16.56%) C# Developer
3 21 (13.38%) C# .NET Developer
3 21 (13.38%) Software Engineer
4 18 (11.46%) Java Developer
5 15 (9.55%) Tester
6 14 (8.92%) Software Developer
7 13 (8.28%) Java Engineer
7 13 (8.28%) Senior Software Engineer
8 12 (7.64%) QA Engineer
8 12 (7.64%) Senior Developer
9 11 (7.01%) Python Developer
10 10 (6.37%) ASP.NET Developer
10 10 (6.37%) ASP.NET MVC Developer
10 10 (6.37%) C# ASP.NET Developer
11 9 (5.73%) PHP Developer
12 8 (5.10%) .NET Software Developer
12 8 (5.10%) C# Software Developer
12 8 (5.10%) Front End Developer (Client-Side Developer)
Libraries, Frameworks & Software Standards
1 48 (30.57%) .NET
2 42 (26.75%) REST
3 35 (22.29%) AngularJS
4 32 (20.38%) Web Services
5 31 (19.75%) HTML
6 29 (18.47%) CSS
7 27 (17.20%) Spring
8 23 (14.65%) React
9 21 (13.38%) .NET Framework
9 21 (13.38%) RESTful
10 20 (12.74%) ASP.NET
11 17 (10.83%) HTML5
12 16 (10.19%) jQuery
13 15 (9.55%) WCF
14 14 (8.92%) Hibernate
14 14 (8.92%) Node.js
15 13 (8.28%) ASP.NET Web API
15 13 (8.28%) Spring Boot
16 12 (7.64%) KnockoutJS
17 11 (7.01%) CSS3
Miscellaneous
1 21 (13.38%) Fintech
2 12 (7.64%) Digital Media
3 9 (5.73%) Analytical Skills
3 9 (5.73%) Enterprise Software
4 8 (5.10%) User Experience
5 7 (4.46%) Greenfield Project
5 7 (4.46%) Mobile App
6 6 (3.82%) Computer Science
6 6 (3.82%) Self-Motivation
7 5 (3.18%) Analytical Mindset
7 5 (3.18%) Cloud Native
8 3 (1.91%) Video\Live Streaming
9 1 (0.64%) Algorithms
9 1 (0.64%) Animation
9 1 (0.64%) BBC
9 1 (0.64%) N-Tier
9 1 (0.64%) Social Media
9 1 (0.64%) Virtual Team
Operating Systems
1 15 (9.55%) Linux
2 13 (8.28%) Android
3 11 (7.01%) Apple iOS
4 4 (2.55%) Unix
5 2 (1.27%) CentOS
5 2 (1.27%) Ubuntu
Processes & Methodologies
1 115 (73.25%) Agile Software Development
2 77 (49.04%) BDD
3 72 (45.86%) Scrum
4 63 (40.13%) Continuous Integration
5 55 (35.03%) Test Automation
6 41 (26.11%) Software Engineering
7 27 (17.20%) MVC
8 26 (16.56%) Unit Testing
9 24 (15.29%) Microservices
9 24 (15.29%) Problem-Solving
10 23 (14.65%) Acceptance Criteria
10 23 (14.65%) Web Application Development
11 20 (12.74%) OO
12 19 (12.10%) Issue Tracking
12 19 (12.10%) Software Testing
13 17 (10.83%) SDET
14 16 (10.19%) Continuous Delivery
14 16 (10.19%) Open Source
15 15 (9.55%) Kanban
16 13 (8.28%) DevOps
Programming Languages
1 72 (45.86%) Java
2 61 (38.85%) C#
3 46 (29.30%) JavaScript
4 42 (26.75%) SQL
5 19 (12.10%) Python
6 17 (10.83%) Go
7 16 (10.19%) PHP
8 10 (6.37%) Ruby
9 8 (5.10%) Java 8
10 6 (3.82%) TypeScript
11 3 (1.91%) C++
11 3 (1.91%) ES6
11 3 (1.91%) Scala
11 3 (1.91%) XPath
12 2 (1.27%) Apple Swift
12 2 (1.27%) Bash Shell
12 2 (1.27%) Groovy
12 2 (1.27%) T-SQL
12 2 (1.27%) VB.NET
13 1 (0.64%) ES8
Qualifications
1 10 (6.37%) Degree
2 4 (2.55%) Computer Science Degree
3 2 (1.27%) Chartered Engineer
3 2 (1.27%) CITP
3 2 (1.27%) SC Cleared
3 2 (1.27%) Security Cleared
3 2 (1.27%) Sun Certification
Quality Assurance & Compliance
1 34 (21.66%) QA
2 3 (1.91%) GDPR
3 1 (0.64%) MISRA
3 1 (0.64%) SLA
System Software
1 15 (9.55%) Docker
2 1 (0.64%) HDFS
2 1 (0.64%) Varnish
Systems Management
1 5 (3.18%) Kubernetes
2 2 (1.27%) Ansible
3 1 (0.64%) Kibana
3 1 (0.64%) Puppet
3 1 (0.64%) Terraform
Vendors
1 14 (8.92%) Microsoft
2 13 (8.28%) Oracle
3 4 (2.55%) Google
3 4 (2.55%) SAP
4 2 (1.27%) Perforce
4 2 (1.27%) Red Hat
4 2 (1.27%) Sybase
5 1 (0.64%) Apple
5 1 (0.64%) Atlassian
5 1 (0.64%) Facebook
5 1 (0.64%) IBM
5 1 (0.64%) Mashery
5 1 (0.64%) MuleSoft
5 1 (0.64%) Sony
5 1 (0.64%) Splunk
5 1 (0.64%) Yahoo!