Period
to 20 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Belfast 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 20 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
County Antrim > Belfast
6 months to
20 Nov 2017
Same period 2016 Same period 2015
Rank 35 33 19
Rank change year-on-year -2 -14 -5
Permanent jobs citing TDD 26 9 13
As % of all permanent IT jobs advertised in Belfast 7.22% 3.05% 9.42%
As % of the Processes & Methodologies category 7.95% 3.40% 9.85%
Number of salaries quoted 13 6 4
Belfast median annual salary £36,000 £35,500 £42,500
Median salary % change year-on-year +1.41% -16.47% -10.53%
10th Percentile £29,400 £30,250 £38,750
90th Percentile £49,500 £55,875 £48,875
County Antrim median annual salary £36,000 £35,500 £42,500
% change year-on-year +1.41% -16.47% -10.53%

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 Belfast with a requirement for process or methodology skills.

All Process and Methodology Skills
Belfast
Permanent vacancies with a requirement for process or methodology skills 327 265 132
As % of all permanent IT jobs advertised in Belfast 90.83% 89.83% 95.65%
Number of salaries quoted 191 205 94
Belfast median annual salary £35,000 £40,000 £42,500
Median salary % change year-on-year -12.50% -5.88% +21.43%
10th Percentile £19,750 £27,050 £25,000
90th Percentile £55,000 £63,350 £65,000
County Antrim median annual salary £35,000 £40,000 £40,000
% change year-on-year -12.50% - +23.08%

TDD
Job Vacancy Trend in Belfast

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

Job vacancy trend for TDD in Belfast

TDD
Salary Trend in Belfast

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

Salary trend for TDD in Belfast

TDD
Salary Histogram in Belfast

The salary distribution of IT jobs citing TDD in Belfast over the 6 months to 20 November 2017.

Salary histogram for TDD in Belfast

For the 6 months to 20 November 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Belfast region with a requirement for TDD.

1 22 (84.62%) Agile Software Development
2 18 (69.23%) JavaScript
3 16 (61.54%) AngularJS
4 15 (57.69%) RESTful
4 15 (57.69%) Microsoft
5 14 (53.85%) Oracle
5 14 (53.85%) Scrum
5 14 (53.85%) Relational Database
6 13 (50.00%) Legal
6 13 (50.00%) .NET
6 13 (50.00%) CSS
6 13 (50.00%) HTML
7 12 (46.15%) Java
7 12 (46.15%) C#
8 11 (42.31%) Continuous Integration
8 11 (42.31%) Test Automation
9 10 (38.46%) Finance
9 10 (38.46%) MVC
10 9 (34.62%) ASP.NET
10 9 (34.62%) Unit Testing
11 8 (30.77%) jQuery
11 8 (30.77%) .NET Framework
11 8 (30.77%) Android
11 8 (30.77%) Web Services
11 8 (30.77%) ASP.NET MVC
11 8 (30.77%) Apple iOS
11 8 (30.77%) TypeScript
11 8 (30.77%) DevOps
11 8 (30.77%) Twitter Bootstrap
11 8 (30.77%) Continuous Delivery

TDD
Co-occurring IT Skills in Belfast 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 1 (3.85%) CMS
Cloud Services
1 7 (26.92%) Amazon AWS
1 7 (26.92%) Microsoft Azure
2 6 (23.08%) npm
Database & Business Intelligence
1 14 (53.85%) Relational Database
2 7 (26.92%) DocumentDB
2 7 (26.92%) NoSQL
2 7 (26.92%) RDBMS
2 7 (26.92%) SQL Server
3 6 (23.08%) Ingres
3 6 (23.08%) MySQL
4 1 (3.85%) MongoDB
4 1 (3.85%) PostgreSQL
Development Applications
1 7 (26.92%) Git (software)
1 7 (26.92%) JUnit
1 7 (26.92%) Mockito
1 7 (26.92%) Octopus Deploy
1 7 (26.92%) TeamCity
2 6 (23.08%) Jasmine
2 6 (23.08%) Karma Test Runner
2 6 (23.08%) Protractor
2 6 (23.08%) Subversion
3 1 (3.85%) Selenium
General
1 13 (50.00%) Legal
2 10 (38.46%) Finance
3 6 (23.08%) Telecoms
4 1 (3.85%) Banking
Job Titles
1 23 (88.46%) Developer
2 13 (50.00%) .NET Developer
3 6 (23.08%) Angular Developer
4 4 (15.38%) Software Developer
5 3 (11.54%) .NET Software Developer
5 3 (11.54%) Test Engineer
6 2 (7.69%) Performance Engineer
6 2 (7.69%) Performance Test Engineer
6 2 (7.69%) Senior Developer
7 1 (3.85%) Agile Developer
7 1 (3.85%) ASP.NET Developer
7 1 (3.85%) ASP.NET MVC Developer
7 1 (3.85%) Java Developer
7 1 (3.85%) WCF Developer
Libraries, Frameworks & Software Standards
1 16 (61.54%) AngularJS
2 15 (57.69%) RESTful
3 13 (50.00%) .NET
3 13 (50.00%) CSS
3 13 (50.00%) HTML
4 9 (34.62%) ASP.NET
5 8 (30.77%) .NET Framework
5 8 (30.77%) ASP.NET MVC
5 8 (30.77%) jQuery
5 8 (30.77%) Twitter Bootstrap
5 8 (30.77%) Web Services
6 7 (26.92%) Angular 2
6 7 (26.92%) Backbone.js
6 7 (26.92%) Classic ASP
6 7 (26.92%) Entity Framework
6 7 (26.92%) KnockoutJS
6 7 (26.92%) SOAP
7 6 (23.08%) Ionic Framework
7 6 (23.08%) Java EE
7 6 (23.08%) JMS
Miscellaneous
1 7 (26.92%) Mobile App
2 2 (7.69%) Analytical Skills
3 1 (3.85%) Client/Server
3 1 (3.85%) Enterprise Software
3 1 (3.85%) Fintech
3 1 (3.85%) User Experience
Operating Systems
1 8 (30.77%) Android
1 8 (30.77%) Apple iOS
2 1 (3.85%) Linux
2 1 (3.85%) Unix
2 1 (3.85%) Windows
Processes & Methodologies
1 22 (84.62%) Agile Software Development
2 14 (53.85%) Scrum
3 11 (42.31%) Continuous Integration
3 11 (42.31%) Test Automation
4 10 (38.46%) MVC
5 9 (34.62%) Unit Testing
6 8 (30.77%) Continuous Delivery
6 8 (30.77%) DevOps
6 8 (30.77%) Front End Development
6 8 (30.77%) SDLC
7 7 (26.92%) CQRS
7 7 (26.92%) Domain-Driven Design
7 7 (26.92%) Mobile Application Development
7 7 (26.92%) Multithreading
8 6 (23.08%) Android Development
8 6 (23.08%) iOS Development
8 6 (23.08%) Mentoring
8 6 (23.08%) SEO
8 6 (23.08%) Task Automation
8 6 (23.08%) Workflow
Programming Languages
1 18 (69.23%) JavaScript
2 12 (46.15%) C#
2 12 (46.15%) Java
3 8 (30.77%) TypeScript
4 2 (7.69%) Perl
4 2 (7.69%) PHP
4 2 (7.69%) SQL
5 1 (3.85%) C++
5 1 (3.85%) PowerShell
Qualifications
1 7 (26.92%) Microsoft Certification
System Software
1 1 (3.85%) Docker
Systems Management
1 1 (3.85%) Opscode Chef
1 1 (3.85%) Prometheus
Vendors
1 15 (57.69%) Microsoft
2 14 (53.85%) Oracle