Period
to 16 October 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 16 October 2021 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
UK > Northern Ireland
6 months to
16 Oct 2021
Same period 2020 Same period 2019
Rank 29 38 49
Rank change year-on-year +9 +11 -26
Permanent jobs citing TDD 73 11 23
As % of all permanent jobs advertised in Northern Ireland 9.88% 3.51% 4.24%
As % of the Processes & Methodologies category 10.22% 3.65% 4.71%
Number of salaries quoted 19 5 13
10th Percentile " £29,500 £35,250
25th Percentile £32,500 £40,000 £36,250
Median annual salary (50th Percentile) £40,000 £57,500 £55,000
Median % change year-on-year -30.43% +4.55% +37.50%
75th Percentile £48,750 £65,000 £65,000
90th Percentile £52,500 £68,000 £67,000
UK median annual salary £62,500 £60,000 £57,500
% change year-on-year +4.17% +4.35% +4.55%

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 714 301 488
As % of all permanent IT jobs advertised in Northern Ireland 96.62% 96.17% 90.04%
Number of salaries quoted 410 120 337
10th Percentile £27,500 £27,500 £24,450
25th Percentile £32,500 £35,000 £30,000
Median annual salary (50th Percentile) £45,000 £45,000 £45,000
75th Percentile £61,250 £57,500 £63,750
90th Percentile £77,625 £63,875 £72,500
UK median annual salary £57,500 £55,000 £52,500
% change year-on-year +4.55% +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 16 October 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 16 October 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 70 £40,000 -30.43% 3
County Londonderry - 1 £75,000 -
County Down - 1 - -
TDD
UK

For the 6 months to 16 October 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 67 (91.78%) Agile Software Development
2 65 (89.04%) C#
3 59 (80.82%) .NET
4 58 (79.45%) Java
5 57 (78.08%) Scrum
6 56 (76.71%) AngularJS
7 55 (75.34%) BDD
8 52 (71.23%) SQL
9 51 (69.86%) Node.js
10 50 (68.49%) MongoDB
10 50 (68.49%) Spring
10 50 (68.49%) Hibernate
11 48 (65.75%) Change Control
11 48 (65.75%) SC Cleared
11 48 (65.75%) Security Cleared
11 48 (65.75%) Public Sector
12 32 (43.84%) Python
13 25 (34.25%) User Stories
13 25 (34.25%) Mentoring
13 25 (34.25%) Coaching
14 24 (32.88%) Software Engineering
15 12 (16.44%) JavaScript
16 10 (13.70%) Azure
17 9 (12.33%) Web Development
18 7 (9.59%) AWS
18 7 (9.59%) ASP.NET
18 7 (9.59%) SOA
18 7 (9.59%) Unix
18 7 (9.59%) Linux
18 7 (9.59%) MVC

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:

Application Platforms
1 1 (1.37%) Apache Spark
Cloud Services
1 10 (13.70%) Azure
2 7 (9.59%) AWS
3 1 (1.37%) Sauce Labs
Communications & Networking
1 5 (6.85%) Internet
Database & Business Intelligence
1 50 (68.49%) MongoDB
2 5 (6.85%) SQL Server
3 1 (1.37%) Big Data
Development Applications
1 5 (6.85%) Git (software)
2 3 (4.11%) Cucumber
3 2 (2.74%) Atlassian Bamboo
3 2 (2.74%) JBehave
3 2 (2.74%) Jenkins
3 2 (2.74%) JUnit
4 1 (1.37%) Cypress.io
4 1 (1.37%) Selenium
General
1 48 (65.75%) Public Sector
2 4 (5.48%) Finance
3 2 (2.74%) Financial Institution
4 1 (1.37%) Publishing
Job Titles
1 46 (63.01%) Developer
2 40 (54.79%) Software Developer
3 29 (39.73%) Senior Developer
4 27 (36.99%) Senior Software Developer
5 23 (31.51%) Software Engineer
6 6 (8.22%) .NET Developer
6 6 (8.22%) .NET Software Developer
7 4 (5.48%) Angular Developer
7 4 (5.48%) Java Developer
8 2 (2.74%) Senior Java Developer
8 2 (2.74%) Test Engineer
8 2 (2.74%) Web Developer
9 1 (1.37%) Data Engineer
9 1 (1.37%) Senior Data Engineer
Libraries, Frameworks & Software Standards
1 59 (80.82%) .NET
2 56 (76.71%) AngularJS
3 51 (69.86%) Node.js
4 50 (68.49%) Hibernate
4 50 (68.49%) Spring
5 7 (9.59%) ASP.NET
5 7 (9.59%) ASP.NET Web API
6 5 (6.85%) ASP.NET MVC
6 5 (6.85%) WCF
7 4 (5.48%) Sass
7 4 (5.48%) Web Services
8 2 (2.74%) React
8 2 (2.74%) REST
8 2 (2.74%) SOAP
9 1 (1.37%) Kafka
9 1 (1.37%) WebdriverIO
Miscellaneous
1 2 (2.74%) Greenfield Project
2 1 (1.37%) Self-Motivation
Operating Systems
1 7 (9.59%) Linux
1 7 (9.59%) Unix
Processes & Methodologies
1 67 (91.78%) Agile Software Development
2 57 (78.08%) Scrum
3 55 (75.34%) BDD
4 48 (65.75%) Change Control
5 25 (34.25%) Coaching
5 25 (34.25%) Mentoring
5 25 (34.25%) User Stories
6 24 (32.88%) Software Engineering
7 9 (12.33%) Web Development
8 7 (9.59%) Full Stack Development
8 7 (9.59%) MVC
8 7 (9.59%) SOA
8 7 (9.59%) SOLID
9 6 (8.22%) Clean Code
10 5 (6.85%) Continuous Delivery
10 5 (6.85%) Continuous Integration
10 5 (6.85%) Creative Thinking
10 5 (6.85%) OO
11 3 (4.11%) Software Testing
11 3 (4.11%) Test Automation
Programming Languages
1 65 (89.04%) C#
2 58 (79.45%) Java
3 52 (71.23%) SQL
4 32 (43.84%) Python
5 12 (16.44%) JavaScript
6 5 (6.85%) Go
7 4 (5.48%) TypeScript
8 1 (1.37%) Scala
Qualifications
1 48 (65.75%) SC Cleared
1 48 (65.75%) Security Cleared
Quality Assurance & Compliance
1 1 (1.37%) ISO 13485
1 1 (1.37%) QA
Systems Management
1 5 (6.85%) Kubernetes
2 2 (2.74%) HP Fortify
Vendors
1 5 (6.85%) Microsoft
1 5 (6.85%) Red Hat
2 2 (2.74%) Salesforce.com
2 2 (2.74%) ServiceNow
3 1 (1.37%) Cloudera