Period
to 20 January 2020

The following table provides summary statistics for contract job vacancies advertised in Belfast with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 20 January 2020 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
County Antrim > Belfast
6 months to
20 Jan 2020
Same period 2019 Same period 2018
Rank 26 19 15
Rank change year-on-year -7 -4 +5
Contract jobs citing TDD 9 26 66
As % of all contract IT jobs advertised in Belfast 3.18% 8.72% 14.19%
As % of the Processes & Methodologies category 4.19% 9.59% 15.38%
Number of daily rates quoted 9 20 60
Belfast median daily rate £400 £412 £430
Median daily rate % change year-on-year -2.91% -4.19% +11.69%
10th Percentile £385 £339 £386
90th Percentile £447 £425 £538
County Antrim median daily rate £400 £412 £430
% change year-on-year -2.91% -4.19% +11.69%
Number of hourly rates quoted 0 0 0
Belfast median hourly rate - - -
County Antrim median hourly rate - - -

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Belfast with a requirement for process or methodology skills.

All Process and Methodology Skills
Belfast
Contract vacancies with a requirement for process or methodology skills 215 271 429
As % of all contract IT jobs advertised in Belfast 75.97% 90.94% 92.26%
Number of daily rates quoted 147 173 317
Belfast median daily rate £425 £400 £420
Median daily rate % change year-on-year +6.25% -4.76% +15.86%
10th Percentile £188 £308 £288
90th Percentile £580 £500 £538
County Antrim median daily rate £423 £400 £420
% change year-on-year +5.63% -4.76% +15.86%
Number of hourly rates quoted 9 18 10
Belfast median hourly rate £13.11 £18.06 £15.00
Median hourly rate % change year-on-year -27.39% +20.37% +15.38%
10th Percentile £9.96 £10.97 £10.85
90th Percentile £16.44 £48.75 £22.15
County Antrim median hourly rate £14.39 £18.06 £16.00
% change year-on-year -20.30% +12.84% +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
Contractor Daily Rate Trend in Belfast

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Belfast.

Contractor daily rate trend for TDD in Belfast

For the 6 months to 20 January 2020, IT contractor 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 contract job ads across the Belfast region with a requirement for TDD.

1 9 (100.00%) Java
1 9 (100.00%) Agile Software Development
2 6 (66.67%) C++
2 6 (66.67%) Linux
3 5 (55.56%) Finance
3 5 (55.56%) Banking
3 5 (55.56%) Analytical Skills
3 5 (55.56%) Defect Management
4 4 (44.44%) Kdb+
4 4 (44.44%) Relational Database
4 4 (44.44%) Degree
4 4 (44.44%) Continuous Integration
4 4 (44.44%) KDB
4 4 (44.44%) Multithreading
4 4 (44.44%) AngularJS
4 4 (44.44%) Unix
4 4 (44.44%) Solaris
4 4 (44.44%) N-Tier
4 4 (44.44%) RDBMS
4 4 (44.44%) C
4 4 (44.44%) SQL
5 3 (33.33%) Eclipse
5 3 (33.33%) Confluence
5 3 (33.33%) Test Automation
5 3 (33.33%) BDD
5 3 (33.33%) JIRA
6 2 (22.22%) FIX Protocol
6 2 (22.22%) Spring
6 2 (22.22%) Ajax
6 2 (22.22%) Derivative

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 3 (33.33%) Confluence
2 2 (22.22%) Apache
2 2 (22.22%) WebLogic
2 2 (22.22%) WebSphere
Communications & Networking
1 2 (22.22%) FTP
Database & Business Intelligence
1 4 (44.44%) KDB
1 4 (44.44%) Kdb+
1 4 (44.44%) RDBMS
1 4 (44.44%) Relational Database
2 2 (22.22%) DB2
2 2 (22.22%) DB2 UDB
2 2 (22.22%) NoSQL
Development Applications
1 3 (33.33%) Eclipse
1 3 (33.33%) JIRA
2 2 (22.22%) Bitbucket
2 2 (22.22%) Bower
2 2 (22.22%) Cucumber
2 2 (22.22%) Git (software)
2 2 (22.22%) Grunt
2 2 (22.22%) Jasmine
2 2 (22.22%) JUnit
2 2 (22.22%) SonarQube
2 2 (22.22%) TeamCity
3 1 (11.11%) TestNG
General
1 5 (55.56%) Banking
1 5 (55.56%) Finance
2 1 (11.11%) Corporate Banking
Job Titles
1 8 (88.89%) Developer
2 4 (44.44%) Java Developer
2 4 (44.44%) KDB Developer
2 4 (44.44%) Senior Developer
2 4 (44.44%) Senior Java Developer
3 1 (11.11%) Test Automation Engineer
3 1 (11.11%) Test Engineer
Libraries, Frameworks & Software Standards
1 4 (44.44%) AngularJS
2 2 (22.22%) Ajax
2 2 (22.22%) Backbone.js
2 2 (22.22%) CSS
2 2 (22.22%) FIX Protocol
2 2 (22.22%) Gherkin
2 2 (22.22%) JMS
2 2 (22.22%) jQuery
2 2 (22.22%) JSP
2 2 (22.22%) Node.js
2 2 (22.22%) RESTful
2 2 (22.22%) Spring
2 2 (22.22%) Spring Batch
2 2 (22.22%) Spring Integration
2 2 (22.22%) Struts
2 2 (22.22%) Twitter Bootstrap
2 2 (22.22%) Web Services
2 2 (22.22%) XML
Miscellaneous
1 5 (55.56%) Analytical Skills
2 4 (44.44%) N-Tier
3 2 (22.22%) Derivative
3 2 (22.22%) Equities
3 2 (22.22%) SWIFT
Operating Systems
1 6 (66.67%) Linux
2 4 (44.44%) Solaris
2 4 (44.44%) Unix
Processes & Methodologies
1 9 (100.00%) Agile Software Development
2 5 (55.56%) Defect Management
3 4 (44.44%) Continuous Integration
3 4 (44.44%) Multithreading
4 3 (33.33%) BDD
4 3 (33.33%) Test Automation
5 2 (22.22%) ETL
5 2 (22.22%) MVC
5 2 (22.22%) OOD
5 2 (22.22%) Project Management
5 2 (22.22%) Time Management
5 2 (22.22%) Waterfall
6 1 (11.11%) Acceptance Criteria
6 1 (11.11%) Integration Testing
6 1 (11.11%) Problem-Solving
6 1 (11.11%) Regression Testing
6 1 (11.11%) Scrum
Programming Languages
1 9 (100.00%) Java
2 6 (66.67%) C++
3 4 (44.44%) C
3 4 (44.44%) SQL
4 2 (22.22%) C#
4 2 (22.22%) Java 8
4 2 (22.22%) JavaScript
4 2 (22.22%) Python
Qualifications
1 4 (44.44%) Degree
Quality Assurance & Compliance
1 1 (11.11%) QA
Vendors
1 2 (22.22%) Oracle