Period
to 19 January 2021

The following table provides summary statistics for permanent job vacancies advertised in Northern Ireland 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 19 January 2021 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Northern Ireland
6 months to
19 Jan 2021
Same period 2020 Same period 2019
Rank 40 42 22
Rank change year-on-year +2 -20 +5
Permanent jobs citing TDD 14 28 62
As % of all permanent jobs advertised in Northern Ireland 4.35% 5.04% 9.92%
As % of the Processes & Methodologies category 4.47% 5.66% 10.93%
Number of salaries quoted 6 16 50
Median annual salary £31,000 £55,000 £42,500
Median salary % change year-on-year -43.64% +29.41% +6.25%
10th Percentile £25,750 £32,500 £33,750
90th Percentile £61,875 £66,250 £63,125
UK median annual salary £60,000 £58,000 £55,000
% change year-on-year +3.45% +5.45% +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 Northern Ireland with a requirement for process or methodology skills.

All Process and Methodology Skills
Northern Ireland
Permanent vacancies with a requirement for process or methodology skills 313 495 567
As % of all permanent IT jobs advertised in Northern Ireland 97.20% 89.03% 90.72%
Number of salaries quoted 173 390 337
Median annual salary £45,000 £45,000 £42,500
Median salary % change year-on-year - +5.88% +8.97%
10th Percentile £28,500 £26,925 £26,250
90th Percentile £65,000 £65,000 £65,000
UK median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +5.00%

TDD
Job Vacancy Trend in Northern Ireland

Job postings citing TDD as a proportion of all IT jobs advertised in Northern Ireland.

Job vacancy trend for TDD in Northern Ireland

TDD
Salary Trend in Northern Ireland

3-month moving average salary quoted in jobs citing TDD in Northern Ireland.

Salary trend for TDD in Northern Ireland

TDD
Salary Histogram in Northern Ireland

Salary distribution for jobs citing TDD in Northern Ireland over the 6 months to 19 January 2021.

Salary histogram for TDD in Northern Ireland

TDD
Job Locations in Northern Ireland

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing TDD within the Northern Ireland region over the 6 months to 19 January 2021. 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
County Antrim +8 14 £31,000 -46.09% 8
TDD
UK

For the 6 months to 19 January 2021, 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 Northern Ireland region with a requirement for TDD.

1 10 (71.43%) Agile Software Development
2 8 (57.14%) JavaScript
3 7 (50.00%) C#
3 7 (50.00%) Software Engineering
4 6 (42.86%) Web Development
4 6 (42.86%) Git (software)
5 5 (35.71%) BDD
5 5 (35.71%) Spring
5 5 (35.71%) Scrum
5 5 (35.71%) Python
5 5 (35.71%) Java
5 5 (35.71%) .NET
6 4 (28.57%) Linux
6 4 (28.57%) Computer Science
6 4 (28.57%) Test Automation
7 3 (21.43%) Azure
7 3 (21.43%) WCF
7 3 (21.43%) ASP.NET MVC
7 3 (21.43%) Node.js
7 3 (21.43%) Gradle
7 3 (21.43%) Maven
7 3 (21.43%) Continuous Integration
7 3 (21.43%) SOA
7 3 (21.43%) Microsoft
7 3 (21.43%) MVC
7 3 (21.43%) SQL Server
7 3 (21.43%) Unix
7 3 (21.43%) ASP.NET
7 3 (21.43%) CSS
7 3 (21.43%) HTML

TDD
Co-occurring IT Skills in Northern Ireland 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:

Cloud Services
1 3 (21.43%) Azure
Database & Business Intelligence
1 3 (21.43%) SQL Server
2 2 (14.29%) MongoDB
3 1 (7.14%) Data Warehouse
3 1 (7.14%) Sybase ASE
Development Applications
1 6 (42.86%) Git (software)
2 3 (21.43%) Gradle
2 3 (21.43%) Maven
3 2 (14.29%) Atlassian Bamboo
3 2 (14.29%) Cucumber
3 2 (14.29%) JBehave
3 2 (14.29%) Jenkins
3 2 (14.29%) JUnit
General
1 2 (14.29%) Public Sector
Job Titles
1 7 (50.00%) Developer
2 5 (35.71%) Software Engineer
3 3 (21.43%) Front End Developer (Client-Side Developer)
3 3 (21.43%) Software Developer
4 2 (14.29%) Senior Software Engineer
4 2 (14.29%) Test Engineer
5 1 (7.14%) Java Developer
5 1 (7.14%) Principal Engineer
5 1 (7.14%) Principal Software Engineer
5 1 (7.14%) Sybase Developer
Libraries, Frameworks & Software Standards
1 5 (35.71%) .NET
1 5 (35.71%) Spring
2 3 (21.43%) ASP.NET
2 3 (21.43%) ASP.NET MVC
2 3 (21.43%) ASP.NET Web API
2 3 (21.43%) CSS
2 3 (21.43%) HTML
2 3 (21.43%) Node.js
2 3 (21.43%) React
2 3 (21.43%) Spring Boot
2 3 (21.43%) WCF
3 2 (14.29%) AngularJS
3 2 (14.29%) CGI
3 2 (14.29%) Hibernate
3 2 (14.29%) Web Services
4 1 (7.14%) JMS
4 1 (7.14%) JSON
4 1 (7.14%) XML
Miscellaneous
1 3 (21.43%) User Experience
2 2 (14.29%) Analytical Skills
3 1 (7.14%) Data Structures
3 1 (7.14%) Enterprise Software
Operating Systems
1 4 (28.57%) Linux
2 3 (21.43%) Unix
3 2 (14.29%) Windows
Processes & Methodologies
1 10 (71.43%) Agile Software Development
2 7 (50.00%) Software Engineering
3 6 (42.86%) Web Development
4 5 (35.71%) BDD
4 5 (35.71%) Scrum
5 4 (28.57%) Computer Science
5 4 (28.57%) Test Automation
6 3 (21.43%) Continuous Integration
6 3 (21.43%) Creative Thinking
6 3 (21.43%) Cybersecurity
6 3 (21.43%) Dependency Management
6 3 (21.43%) DevOps
6 3 (21.43%) DevSecOps
6 3 (21.43%) Front End Development
6 3 (21.43%) MVC
6 3 (21.43%) SDLC
6 3 (21.43%) SOA
6 3 (21.43%) SOLID
7 2 (14.29%) Continuous Delivery
7 2 (14.29%) Exploratory Testing
Programming Languages
1 8 (57.14%) JavaScript
2 7 (50.00%) C#
3 5 (35.71%) Java
3 5 (35.71%) Python
4 2 (14.29%) C
4 2 (14.29%) C++
4 2 (14.29%) Go
4 2 (14.29%) SQL
5 1 (7.14%) Perl
Qualifications
1 2 (14.29%) SC Cleared
1 2 (14.29%) Security Cleared
System Software
1 1 (7.14%) Docker
Systems Management
1 2 (14.29%) HP Fortify
2 1 (7.14%) Kubernetes
Vendors
1 3 (21.43%) Microsoft
2 2 (14.29%) Dell
3 1 (7.14%) Google
3 1 (7.14%) Solace
3 1 (7.14%) Sybase