Period
to 22 October 2019

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 22 October 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Northern Ireland
6 months to
22 Oct 2019
Same period 2018 Same period 2017
Rank 43 18 39
Rank change year-on-year -25 +21 0
Permanent jobs citing TDD 22 43 32
As % of all permanent IT jobs advertised in Northern Ireland 4.10% 10.41% 7.03%
As % of the Processes & Methodologies category 4.56% 11.68% 7.51%
Number of salaries quoted 12 41 13
Northern Ireland median annual salary £55,000 £40,000 £36,000
Median salary % change year-on-year +37.50% +11.11% +6.67%
10th Percentile £35,125 £27,500 £31,000
90th Percentile £67,250 £68,750 £42,250
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +4.76% +4.32%

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 482 368 426
As % of all permanent IT jobs advertised in Northern Ireland 89.76% 89.10% 93.63%
Number of salaries quoted 331 275 268
Northern Ireland median annual salary £42,500 £40,000 £36,000
Median salary % change year-on-year +6.25% +11.11% -10.00%
10th Percentile £25,000 £24,100 £21,250
90th Percentile £72,500 £65,000 £57,500
UK median annual salary £52,500 £50,000 £50,000
% change year-on-year +5.00% - +4.17%

TDD
Job Vacancy Trend in Northern Ireland

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

Job vacancy trend for TDD in Northern Ireland

TDD
Salary Trend in Northern Ireland

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

Salary trend for TDD in Northern Ireland

TDD
Salary Histogram in Northern Ireland

The salary distribution of IT jobs citing TDD in Northern Ireland over the 6 months to 22 October 2019.

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 22 October 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
County Antrim -23 21 £55,000 +37.50% 10
County Down - 1 £30,000 - 1
TDD
UK

For the 6 months to 22 October 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 Northern Ireland region with a requirement for TDD.

1 20 (90.91%) JavaScript
2 19 (86.36%) Unit Testing
3 18 (81.82%) Agile Software Development
4 16 (72.73%) Scrum
4 16 (72.73%) RESTful
5 15 (68.18%) Continuous Integration
6 14 (63.64%) CSS
7 13 (59.09%) C#
7 13 (59.09%) jQuery
8 12 (54.55%) HTML
8 12 (54.55%) .NET
8 12 (54.55%) Web Services
8 12 (54.55%) ASP.NET
8 12 (54.55%) DevOps
9 11 (50.00%) ASP.NET MVC
9 11 (50.00%) Microsoft
9 11 (50.00%) MVC
9 11 (50.00%) Oracle
10 10 (45.45%) RDBMS
10 10 (45.45%) Microsoft Certification
10 10 (45.45%) Integration Testing
10 10 (45.45%) System Testing
10 10 (45.45%) TeamCity
10 10 (45.45%) Domain-Driven Design
10 10 (45.45%) .NET Framework
10 10 (45.45%) Azure
10 10 (45.45%) AWS
10 10 (45.45%) Entity Framework
10 10 (45.45%) CQRS
10 10 (45.45%) Twitter Bootstrap

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 10 (45.45%) AWS
1 10 (45.45%) Azure
Communications & Networking
1 2 (9.09%) HTTP
Database & Business Intelligence
1 10 (45.45%) RDBMS
1 10 (45.45%) Relational Database
2 6 (27.27%) Cosmos DB
2 6 (27.27%) GIS
2 6 (27.27%) NoSQL
3 5 (22.73%) MySQL
4 3 (13.64%) SQL Server
Development Applications
1 10 (45.45%) Octopus Deploy
1 10 (45.45%) TeamCity
2 3 (13.64%) Git (software)
General
1 6 (27.27%) Legal
2 3 (13.64%) Finance
Job Titles
1 19 (86.36%) Developer
2 10 (45.45%) .NET Developer
3 5 (22.73%) Python Developer
4 4 (18.18%) Microsoft Developer
5 2 (9.09%) C# Developer
5 2 (9.09%) Senior Developer
6 1 (4.55%) Applications Developer
6 1 (4.55%) C# Application Developer
6 1 (4.55%) C# Web Application Developer
6 1 (4.55%) C# Web Developer
6 1 (4.55%) Front End Developer (Client-Side Developer)
6 1 (4.55%) Java Developer
6 1 (4.55%) Senior .NET Developer
6 1 (4.55%) Senior C# Developer
6 1 (4.55%) Senior SQL Developer
6 1 (4.55%) Software Developer
6 1 (4.55%) SQL Developer
6 1 (4.55%) SQL Server Developer
6 1 (4.55%) Web Applications Developer
6 1 (4.55%) Web Developer
Libraries, Frameworks & Software Standards
1 16 (72.73%) RESTful
2 14 (63.64%) CSS
3 13 (59.09%) jQuery
4 12 (54.55%) .NET
4 12 (54.55%) ASP.NET
4 12 (54.55%) HTML
4 12 (54.55%) Web Services
5 11 (50.00%) ASP.NET MVC
6 10 (45.45%) .NET Framework
6 10 (45.45%) Entity Framework
6 10 (45.45%) Twitter Bootstrap
7 7 (31.82%) AngularJS
8 6 (27.27%) Angular 2
8 6 (27.27%) Backbone.js
8 6 (27.27%) KnockoutJS
9 5 (22.73%) Django
9 5 (22.73%) Flask
9 5 (22.73%) Swagger
10 4 (18.18%) REST
11 3 (13.64%) JSON
Miscellaneous
1 1 (4.55%) Analytical Skills
1 1 (4.55%) Enterprise Software
1 1 (4.55%) Greenfield Project
Operating Systems
1 3 (13.64%) Linux
Processes & Methodologies
1 19 (86.36%) Unit Testing
2 18 (81.82%) Agile Software Development
3 16 (72.73%) Scrum
4 15 (68.18%) Continuous Integration
5 12 (54.55%) DevOps
6 11 (50.00%) MVC
7 10 (45.45%) Continuous Delivery
7 10 (45.45%) CQRS
7 10 (45.45%) Domain-Driven Design
7 10 (45.45%) Integration Testing
7 10 (45.45%) System Testing
8 6 (27.27%) BDD
8 6 (27.27%) Digital Transformation Programme
8 6 (27.27%) Kanban
9 5 (22.73%) API Design
9 5 (22.73%) Fintech
9 5 (22.73%) Microservices
9 5 (22.73%) Software Engineering
10 3 (13.64%) Front End Development
11 2 (9.09%) Mentoring
Programming Languages
1 20 (90.91%) JavaScript
2 13 (59.09%) C#
3 5 (22.73%) Python
4 3 (13.64%) TypeScript
5 2 (9.09%) SQL
6 1 (4.55%) Java
6 1 (4.55%) PowerShell
6 1 (4.55%) VB
6 1 (4.55%) VB.NET
Qualifications
1 10 (45.45%) Microsoft Certification
Quality Assurance & Compliance
1 2 (9.09%) QA
Vendors
1 11 (50.00%) Microsoft
1 11 (50.00%) Oracle