Period
to 16 February 2020

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 16 February 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Northern Ireland
6 months to
16 Feb 2020
Same period 2019 Same period 2018
Rank 35 27 27
Rank change year-on-year -8 0 -1
Permanent jobs citing TDD 30 61 46
As % of all permanent IT jobs advertised in Northern Ireland 5.42% 9.02% 9.81%
As % of the Processes & Methodologies category 6.10% 9.95% 10.67%
Number of salaries quoted 9 49 30
Northern Ireland median annual salary £55,000 £42,500 £40,000
Median salary % change year-on-year +29.41% +6.25% +6.67%
10th Percentile £34,750 £33,750 £22,250
90th Percentile £67,500 £60,000 £50,000
UK median annual salary £60,000 £55,000 £50,000
% change year-on-year +9.09% +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 492 613 431
As % of all permanent IT jobs advertised in Northern Ireland 88.97% 90.68% 91.90%
Number of salaries quoted 371 372 291
Northern Ireland median annual salary £42,500 £42,500 £40,000
Median salary % change year-on-year - +6.25% +6.67%
10th Percentile £27,500 £26,250 £22,500
90th Percentile £65,000 £61,125 £55,000
UK median annual salary £53,000 £52,500 £50,000
% change year-on-year +0.95% +5.00% +5.26%

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 16 February 2020.

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 16 February 2020. 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 -9 29 £55,000 +29.41% 10
County Down - 1 £32,500 - 1
TDD
UK

For the 6 months to 16 February 2020, 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 25 (83.33%) JavaScript
1 25 (83.33%) Agile Software Development
2 24 (80.00%) Continuous Integration
3 23 (76.67%) Unit Testing
3 23 (76.67%) C#
3 23 (76.67%) .NET
4 22 (73.33%) CSS
4 22 (73.33%) DevOps
5 21 (70.00%) Azure
6 20 (66.67%) .NET Framework
6 20 (66.67%) Oracle
6 20 (66.67%) HTML
6 20 (66.67%) Microsoft
6 20 (66.67%) Scrum
6 20 (66.67%) AWS
6 20 (66.67%) Entity Framework
6 20 (66.67%) RESTful
7 19 (63.33%) ASP.NET
8 18 (60.00%) MVC
8 18 (60.00%) ASP.NET MVC
9 17 (56.67%) Web Services
9 17 (56.67%) jQuery
10 16 (53.33%) Continuous Delivery
11 15 (50.00%) Octopus Deploy
11 15 (50.00%) Relational Database
11 15 (50.00%) CQRS
11 15 (50.00%) Twitter Bootstrap
11 15 (50.00%) Domain-Driven Design
11 15 (50.00%) TeamCity
11 15 (50.00%) System Testing

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 21 (70.00%) Azure
2 20 (66.67%) AWS
3 4 (13.33%) PaaS
4 1 (3.33%) GCP
Communications & Networking
1 2 (6.67%) HTTP
Database & Business Intelligence
1 15 (50.00%) RDBMS
1 15 (50.00%) Relational Database
2 9 (30.00%) SQL Server
3 4 (13.33%) NoSQL
4 2 (6.67%) MySQL
5 1 (3.33%) Amazon Aurora
5 1 (3.33%) Amazon DynamoDB
5 1 (3.33%) Apache Cassandra
5 1 (3.33%) Cosmos DB
5 1 (3.33%) GIS
5 1 (3.33%) MongoDB
5 1 (3.33%) PostgreSQL
5 1 (3.33%) SQL Server 2016
Development Applications
1 15 (50.00%) Octopus Deploy
1 15 (50.00%) TeamCity
2 5 (16.67%) Git (software)
3 1 (3.33%) Jenkins
3 1 (3.33%) Xcode
General
1 5 (16.67%) Legal
2 3 (10.00%) Finance
Job Titles
1 28 (93.33%) Developer
2 21 (70.00%) .NET Developer
3 14 (46.67%) Microsoft Developer
4 3 (10.00%) C# Developer
4 3 (10.00%) Python Developer
5 1 (3.33%) Agile .NET Developer
5 1 (3.33%) Agile C# Developer
5 1 (3.33%) Applications Developer
5 1 (3.33%) ASP.NET Developer
5 1 (3.33%) C# Application Developer
5 1 (3.33%) C# ASP.NET Developer
5 1 (3.33%) C# Web Developer
5 1 (3.33%) Java Developer
5 1 (3.33%) Senior C# Developer
5 1 (3.33%) Senior Developer
5 1 (3.33%) Senior SQL Server Developer
5 1 (3.33%) SQL Developer
5 1 (3.33%) SQL Server Developer
5 1 (3.33%) Web Applications Developer
5 1 (3.33%) Web Developer
Libraries, Frameworks & Software Standards
1 23 (76.67%) .NET
2 22 (73.33%) CSS
3 20 (66.67%) .NET Framework
3 20 (66.67%) Entity Framework
3 20 (66.67%) HTML
3 20 (66.67%) RESTful
4 19 (63.33%) ASP.NET
5 18 (60.00%) ASP.NET MVC
6 17 (56.67%) jQuery
6 17 (56.67%) Web Services
7 15 (50.00%) Twitter Bootstrap
8 6 (20.00%) ASP.NET Web API
8 6 (20.00%) Node.js
9 3 (10.00%) Django
9 3 (10.00%) Flask
9 3 (10.00%) REST
9 3 (10.00%) Spring
10 2 (6.67%) AngularJS
10 2 (6.67%) JSON
10 2 (6.67%) WCF
Miscellaneous
1 5 (16.67%) User Experience
2 2 (6.67%) Enterprise Software
Operating Systems
1 2 (6.67%) Linux
2 1 (3.33%) Apple iOS
Processes & Methodologies
1 25 (83.33%) Agile Software Development
2 24 (80.00%) Continuous Integration
3 23 (76.67%) Unit Testing
4 22 (73.33%) DevOps
5 20 (66.67%) Scrum
6 18 (60.00%) MVC
7 16 (53.33%) Continuous Delivery
8 15 (50.00%) CQRS
8 15 (50.00%) Domain-Driven Design
8 15 (50.00%) Integration Testing
8 15 (50.00%) System Testing
9 9 (30.00%) BDD
10 5 (16.67%) Continuous Deployment
11 4 (13.33%) Analytics
11 4 (13.33%) Kanban
11 4 (13.33%) Microservices
11 4 (13.33%) Secure Coding
12 3 (10.00%) API Design
12 3 (10.00%) Coaching
12 3 (10.00%) Fintech
Programming Languages
1 25 (83.33%) JavaScript
2 23 (76.67%) C#
3 3 (10.00%) Python
3 3 (10.00%) SQL
4 2 (6.67%) Ruby
4 2 (6.67%) TypeScript
5 1 (3.33%) Apple Swift
5 1 (3.33%) F#
5 1 (3.33%) Java
5 1 (3.33%) Objective-C
5 1 (3.33%) PowerShell
5 1 (3.33%) VB
5 1 (3.33%) VB.NET
Qualifications
1 15 (50.00%) Microsoft Certification
2 1 (3.33%) Degree
Quality Assurance & Compliance
1 2 (6.67%) QA
Vendors
1 20 (66.67%) Microsoft
1 20 (66.67%) Oracle
2 1 (3.33%) Sybase