Period
to 14 November 2018

The following table provides summary statistics for permanent job vacancies advertised in Cardiff 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 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
South Wales > Cardiff
6 months to
14 Nov 2018
Same period 2017 Same period 2016
Rank 24 30 29
Rank change year-on-year +6 -1 +25
Permanent jobs citing TDD 89 49 97
As % of all permanent IT jobs advertised in Cardiff 7.70% 6.01% 6.97%
As % of the Processes & Methodologies category 8.90% 6.42% 7.67%
Number of salaries quoted 78 49 99
Cardiff median annual salary £45,000 £40,000 £35,000
Median salary % change year-on-year +12.50% +14.29% -
10th Percentile £33,750 £21,250 £24,250
90th Percentile £64,875 £53,950 £67,000
South Wales median annual salary £45,000 £40,000 £35,000
% change year-on-year +12.50% +14.29% -4.84%

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 Cardiff with a requirement for process or methodology skills.

All Process and Methodology Skills
Cardiff
Permanent vacancies with a requirement for process or methodology skills 1,000 763 1,264
As % of all permanent IT jobs advertised in Cardiff 86.51% 93.62% 90.80%
Number of salaries quoted 823 678 1,138
Cardiff median annual salary £40,000 £40,000 £36,000
Median salary % change year-on-year - +11.11% -1.37%
10th Percentile £25,000 £24,250 £22,500
90th Percentile £65,000 £56,250 £55,000
South Wales median annual salary £40,000 £40,000 £37,500
% change year-on-year - +6.67% +3.09%

TDD
Job Vacancy Trend in Cardiff

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

Job vacancy trend for TDD in Cardiff

TDD
Salary Trend in Cardiff

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

Salary trend for TDD in Cardiff

TDD
Salary Histogram in Cardiff

The salary distribution of IT jobs citing TDD in Cardiff over the 6 months to 14 November 2018.

Salary histogram for TDD in Cardiff

For the 6 months to 14 November 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 Cardiff region with a requirement for TDD.

1 63 (70.79%) Agile Software Development
2 44 (49.44%) Java
2 44 (49.44%) Test Automation
3 41 (46.07%) Scrum
4 39 (43.82%) BDD
5 37 (41.57%) Selenium
5 37 (41.57%) Continuous Integration
5 37 (41.57%) C#
6 33 (37.08%) QA
7 31 (34.83%) REST
8 29 (32.58%) Unit Testing
9 27 (30.34%) Cucumber
10 26 (29.21%) Web Services
11 23 (25.84%) .NET
12 21 (23.60%) NoSQL
13 20 (22.47%) JUnit
14 18 (20.22%) Microservices
15 17 (19.10%) Python
15 17 (19.10%) SQL
16 16 (17.98%) Software Testing
16 16 (17.98%) Issue Tracking
16 16 (17.98%) SDET
16 16 (17.98%) Fintech
16 16 (17.98%) Protractor
16 16 (17.98%) WebDriver
16 16 (17.98%) Amazon AWS
16 16 (17.98%) Acceptance Criteria
17 15 (16.85%) AngularJS
17 15 (16.85%) React
17 15 (16.85%) JMeter

TDD
Co-occurring IT Skills in Cardiff 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 (6.74%) Confluence
2 3 (3.37%) Elasticsearch
3 2 (2.25%) Apache
3 2 (2.25%) Apache Spark
4 1 (1.12%) Anypoint
4 1 (1.12%) Apache Airflow
4 1 (1.12%) Apache Pig
4 1 (1.12%) Cloud Foundry
4 1 (1.12%) IIS
4 1 (1.12%) nginx
4 1 (1.12%) SAS
4 1 (1.12%) SharePoint
4 1 (1.12%) Tomcat
Cloud Services
1 16 (17.98%) Amazon AWS
2 10 (11.24%) Microsoft Azure
3 5 (5.62%) GitHub
4 4 (4.49%) Cloud Computing
4 4 (4.49%) Google Cloud Platform
4 4 (4.49%) Slack
4 4 (4.49%) Trello
5 2 (2.25%) Dynamics 365
6 1 (1.12%) Apigee
6 1 (1.12%) PaaS
6 1 (1.12%) SaaS
Communications & Networking
1 5 (5.62%) Internet
2 2 (2.25%) Hyperconnected
3 1 (1.12%) SSL
Database & Business Intelligence
1 21 (23.60%) NoSQL
2 13 (14.61%) SQL Server
3 7 (7.87%) MongoDB
4 6 (6.74%) Relational Database
4 6 (6.74%) SQL Server 2016
5 4 (4.49%) Data Warehouse
6 3 (3.37%) PostgreSQL
6 3 (3.37%) Redis
6 3 (3.37%) SQL Server 2012
7 2 (2.25%) Amazon DynamoDB
7 2 (2.25%) MySQL
8 1 (1.12%) Amazon Redshift
8 1 (1.12%) Apache Cassandra
8 1 (1.12%) Apache Hive
8 1 (1.12%) Big Data
8 1 (1.12%) Hadoop
8 1 (1.12%) Oracle Database
8 1 (1.12%) Presto
8 1 (1.12%) Sqoop
Development Applications
1 37 (41.57%) Selenium
2 27 (30.34%) Cucumber
3 20 (22.47%) JUnit
4 16 (17.98%) Protractor
4 16 (17.98%) WebDriver
5 15 (16.85%) JMeter
6 14 (15.73%) SoapUI
7 7 (7.87%) Git (software)
7 7 (7.87%) JIRA
8 5 (5.62%) Maven
9 4 (4.49%) Subversion
10 3 (3.37%) CircleCI
10 3 (3.37%) Team Foundation Server
11 2 (2.25%) Ant
11 2 (2.25%) Gradle
11 2 (2.25%) Pylint
11 2 (2.25%) TestNG
12 1 (1.12%) Gerrit
12 1 (1.12%) Jenkins
12 1 (1.12%) Xdebug
General
1 14 (15.73%) Finance
2 5 (5.62%) Retail
3 4 (4.49%) Banking
4 3 (3.37%) Investment Banking
5 1 (1.12%) Legal
Job Titles
1 51 (57.30%) Developer
2 14 (15.73%) .NET Developer
3 13 (14.61%) C# Developer
3 13 (14.61%) Python Developer
3 13 (14.61%) Software Developer
4 12 (13.48%) Java Engineer
4 12 (13.48%) QA Engineer
4 12 (13.48%) Tester
5 11 (12.36%) C# .NET Developer
6 10 (11.24%) Senior Developer
7 8 (8.99%) .NET Software Developer
7 8 (8.99%) C# Software Developer
8 7 (7.87%) Automation Engineer
8 7 (7.87%) QA Automation Engineer
9 6 (6.74%) PHP Developer
9 6 (6.74%) QA Leader
10 5 (5.62%) ASP.NET MVC Developer
10 5 (5.62%) Senior Python Developer
10 5 (5.62%) Software Engineer
11 4 (4.49%) Principal Developer
Libraries, Frameworks & Software Standards
1 31 (34.83%) REST
2 26 (29.21%) Web Services
3 23 (25.84%) .NET
4 15 (16.85%) AngularJS
4 15 (16.85%) React
5 12 (13.48%) Spring
6 11 (12.36%) Spring Boot
7 10 (11.24%) KnockoutJS
8 8 (8.99%) .NET Framework
8 8 (8.99%) CSS
8 8 (8.99%) HTML
8 8 (8.99%) Swagger
9 6 (6.74%) Django
9 6 (6.74%) jQuery
9 6 (6.74%) SOAP
10 5 (5.62%) ASP.NET
10 5 (5.62%) WCF
10 5 (5.62%) XML
11 4 (4.49%) ASP.NET Web API
11 4 (4.49%) Node.js
Miscellaneous
1 16 (17.98%) Fintech
2 11 (12.36%) Analytical Skills
3 8 (8.99%) Analytical Mindset
3 8 (8.99%) Self-Motivation
4 5 (5.62%) Greenfield Project
5 4 (4.49%) Mobile App
6 3 (3.37%) Cloud Native
7 1 (1.12%) Algorithms
7 1 (1.12%) Computer Science
7 1 (1.12%) Enterprise Software
7 1 (1.12%) N-Tier
7 1 (1.12%) User Experience
Operating Systems
1 6 (6.74%) Linux
2 5 (5.62%) Android
3 4 (4.49%) Apple iOS
4 2 (2.25%) Unix
Processes & Methodologies
1 63 (70.79%) Agile Software Development
2 44 (49.44%) Test Automation
3 41 (46.07%) Scrum
4 39 (43.82%) BDD
5 37 (41.57%) Continuous Integration
6 29 (32.58%) Unit Testing
7 18 (20.22%) Microservices
8 16 (17.98%) Acceptance Criteria
8 16 (17.98%) Issue Tracking
8 16 (17.98%) SDET
8 16 (17.98%) Software Testing
9 14 (15.73%) MVC
10 13 (14.61%) Problem-Solving
10 13 (14.61%) Software Engineering
11 12 (13.48%) QA Automation
12 11 (12.36%) Non-Functional Testing
13 9 (10.11%) Continuous Deployment
13 9 (10.11%) OO
13 9 (10.11%) OOD
13 9 (10.11%) SOLID
Programming Languages
1 44 (49.44%) Java
2 37 (41.57%) C#
3 17 (19.10%) Python
3 17 (19.10%) SQL
4 14 (15.73%) Go
5 13 (14.61%) JavaScript
6 9 (10.11%) PHP
7 4 (4.49%) Ruby
8 3 (3.37%) XPath
9 2 (2.25%) C++
9 2 (2.25%) Scala
10 1 (1.12%) Apple Swift
10 1 (1.12%) C
10 1 (1.12%) PHP 5
10 1 (1.12%) R
10 1 (1.12%) VB.NET
10 1 (1.12%) VBA
10 1 (1.12%) VBScript
Qualifications
1 5 (5.62%) Degree
2 1 (1.12%) Chartered Engineer
2 1 (1.12%) CITP
2 1 (1.12%) SC Cleared
2 1 (1.12%) Security Cleared
2 1 (1.12%) Sun Certification
Quality Assurance & Compliance
1 33 (37.08%) QA
System Software
1 10 (11.24%) Docker
2 1 (1.12%) HDFS
2 1 (1.12%) Varnish
Systems Management
1 2 (2.25%) Kubernetes
2 1 (1.12%) Kibana
Vendors
1 12 (13.48%) Microsoft
2 3 (3.37%) Google
2 3 (3.37%) Oracle
3 1 (1.12%) Mashery
3 1 (1.12%) MuleSoft
3 1 (1.12%) Perforce
3 1 (1.12%) Splunk
3 1 (1.12%) Sybase