Period
to 18 June 2018

The following table provides summary statistics for contract job vacancies advertised in Northern Ireland 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 18 June 2018 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)
UK > Northern Ireland
6 months to
18 Jun 2018
Same period 2017 Same period 2016
Rank 21 49 31
Rank change year-on-year +28 -18 -3
Contract jobs citing TDD 40 24 3
As % of all contract IT jobs advertised in Northern Ireland 9.43% 4.26% 1.36%
As % of the Processes & Methodologies category 11.56% 4.93% 1.65%
Number of daily rates quoted 37 17 1
Northern Ireland median daily rate £450 £400 £438
Median daily rate % change year-on-year +12.50% -8.57% +16.67%
10th Percentile £319 £345 £419
90th Percentile £570 £425 £456
UK median daily rate £500 £470 £450
% change year-on-year +6.38% +4.44% +5.88%
Number of hourly rates quoted 0 0 0
Northern Ireland median hourly rate - - -
UK median hourly rate £45.00 £40.50 £43.00
% change year-on-year +11.11% -5.81% +4.24%

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 Northern Ireland with a requirement for process or methodology skills.

All Process and Methodology Skills
Northern Ireland
Contract vacancies with a requirement for process or methodology skills 346 487 182
As % of all contract IT jobs advertised in Northern Ireland 81.60% 86.50% 82.35%
Number of daily rates quoted 237 401 86
Northern Ireland median daily rate £443 £413 £325
Median daily rate % change year-on-year +7.27% +26.92% +30.00%
10th Percentile £279 £280 £239
90th Percentile £531 £513 £475
UK median daily rate £450 £438 £425
% change year-on-year +2.86% +2.94% +6.25%
Number of hourly rates quoted 9 5 8
Northern Ireland median hourly rate £16.00 £12.93 £15.75
Median hourly rate % change year-on-year +23.74% -17.90% -36.36%
10th Percentile £12.80 £10.80 £13.18
90th Percentile £25.90 £18.63 £28.63
UK median hourly rate £21.84 £25.00 £25.00
% change year-on-year -12.64% - +17.10%

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
Contractor Daily Rate Trend in Northern Ireland

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

Contractor daily rate trend for TDD in Northern Ireland

TDD
Contractor Daily Rate Histogram in Northern Ireland

The daily rate distribution of IT jobs citing TDD in Northern Ireland over the 6 months to 18 June 2018.

Contractor daily rate histogram for TDD in Northern Ireland

TDD
Contract Job Locations in Northern Ireland

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Northern Ireland region over the 6 months to 18 June 2018. 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
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
County Antrim +24 34 £455 +13.75% 9
TDD
UK

For the 6 months to 18 June 2018, 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 Northern Ireland region with a requirement for TDD.

1 23 (57.50%) C#
1 23 (57.50%) Finance
2 19 (47.50%) Front Office
2 19 (47.50%) Java
2 19 (47.50%) Test Automation
3 18 (45.00%) Spring
4 17 (42.50%) C++
4 17 (42.50%) Multithreading
5 16 (40.00%) Visual Studio
5 16 (40.00%) Hibernate
6 15 (37.50%) Banking
6 15 (37.50%) Jenkins
7 14 (35.00%) Git (software)
7 14 (35.00%) JUnit
7 14 (35.00%) JavaScript
8 13 (32.50%) SQL
8 13 (32.50%) Windows
8 13 (32.50%) Agile Software Development
8 13 (32.50%) TeamCity
8 13 (32.50%) Unit Testing
8 13 (32.50%) Continuous Integration
8 13 (32.50%) Java 8
9 12 (30.00%) Spring Boot
9 12 (30.00%) Maven
9 12 (30.00%) Python
9 12 (30.00%) SQL Server
10 11 (27.50%) .NET
10 11 (27.50%) JSON
10 11 (27.50%) Performance Improvement
11 10 (25.00%) AngularJS

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 5 (12.50%) WebLogic
1 5 (12.50%) WebSphere
Cloud Services
1 7 (17.50%) npm
1 7 (17.50%) Yarn
2 1 (2.50%) Amazon AWS
Communications & Networking
1 1 (2.50%) Internet
Database & Business Intelligence
1 12 (30.00%) SQL Server
2 7 (17.50%) SQL Server 2014
3 5 (12.50%) DB2
3 5 (12.50%) SQL Server 2008
4 3 (7.50%) DB2 UDB
4 3 (7.50%) RDBMS
4 3 (7.50%) Relational Database
Development Applications
1 16 (40.00%) Visual Studio
2 15 (37.50%) Jenkins
3 14 (35.00%) Git (software)
3 14 (35.00%) JUnit
4 13 (32.50%) TeamCity
5 12 (30.00%) Maven
6 6 (15.00%) Grunt
7 5 (12.50%) Bower
7 5 (12.50%) Cucumber
7 5 (12.50%) Eclipse
7 5 (12.50%) Jasmine
7 5 (12.50%) JIRA
8 2 (5.00%) Selenium
9 1 (2.50%) Bitbucket
9 1 (2.50%) gulp
9 1 (2.50%) jMock
9 1 (2.50%) Mockito
9 1 (2.50%) SonarQube
9 1 (2.50%) webpack
General
1 23 (57.50%) Finance
2 19 (47.50%) Front Office
3 15 (37.50%) Banking
4 1 (2.50%) Investment Banking
Job Titles
1 40 (100.00%) Developer
2 19 (47.50%) Java Developer
3 10 (25.00%) .NET Developer
4 9 (22.50%) Senior Developer
5 6 (15.00%) C# Developer
6 4 (10.00%) C++ Developer
6 4 (10.00%) C++/C# Developer
6 4 (10.00%) Full Stack Developer
6 4 (10.00%) Senior C# Developer
6 4 (10.00%) Senior C++ Developer
7 3 (7.50%) Senior Java Developer
8 2 (5.00%) Angular Developer
8 2 (5.00%) Junior
8 2 (5.00%) Junior Developer
8 2 (5.00%) Junior Java Developer
8 2 (5.00%) Senior .NET Developer
8 2 (5.00%) Senior Full Stack Developer
9 1 (2.50%) Front End Developer (Client-Side Developer)
Libraries, Frameworks & Software Standards
1 18 (45.00%) Spring
2 16 (40.00%) Hibernate
3 12 (30.00%) Spring Boot
4 11 (27.50%) .NET
4 11 (27.50%) JSON
5 10 (25.00%) AngularJS
6 9 (22.50%) HTML
6 9 (22.50%) React
7 8 (20.00%) Akka
7 8 (20.00%) HTML5
7 8 (20.00%) Kafka
7 8 (20.00%) Redux
7 8 (20.00%) Zuul
8 7 (17.50%) ActiveMQ
8 7 (17.50%) CSS
8 7 (17.50%) Web Services
8 7 (17.50%) WPF
9 6 (15.00%) REST
9 6 (15.00%) XML
10 5 (12.50%) Backbone.js
Miscellaneous
1 9 (22.50%) Data Structures
2 7 (17.50%) Foreign Exchange (FX)
3 6 (15.00%) Equities
4 5 (12.50%) Derivative
4 5 (12.50%) Equity Derivative
4 5 (12.50%) Grid Computing
5 3 (7.50%) Mobile App
Operating Systems
1 13 (32.50%) Windows
2 7 (17.50%) Windows Server
3 4 (10.00%) Android
3 4 (10.00%) Unix
4 2 (5.00%) Linux
Processes & Methodologies
1 19 (47.50%) Test Automation
2 17 (42.50%) Multithreading
3 13 (32.50%) Agile Software Development
3 13 (32.50%) Continuous Integration
3 13 (32.50%) Unit Testing
4 11 (27.50%) Performance Improvement
5 8 (20.00%) MVC
5 8 (20.00%) OO
5 8 (20.00%) SOLID
6 7 (17.50%) Garbage Collection
6 7 (17.50%) Low Latency
7 6 (15.00%) Electronic Trading
8 5 (12.50%) Asynchronous Programming
8 5 (12.50%) Refactoring
8 5 (12.50%) Risk Management
9 4 (10.00%) Functional Programming
9 4 (10.00%) OOP
10 3 (7.50%) ETL
10 3 (7.50%) Time Management
10 3 (7.50%) Waterfall
Programming Languages
1 23 (57.50%) C#
2 19 (47.50%) Java
3 17 (42.50%) C++
4 14 (35.00%) JavaScript
5 13 (32.50%) Java 8
5 13 (32.50%) SQL
6 12 (30.00%) Python
7 7 (17.50%) ES6
7 7 (17.50%) TypeScript
8 4 (10.00%) Kotlin
Qualifications
1 3 (7.50%) Degree
2 1 (2.50%) Computer Science Degree
Quality Assurance & Compliance
1 1 (2.50%) PMO
System Software
1 5 (12.50%) Platform Symphony
2 1 (2.50%) Docker
Vendors
1 7 (17.50%) Oracle
2 6 (15.00%) FXall
2 6 (15.00%) Reuters
3 1 (2.50%) BT
3 1 (2.50%) IBM
3 1 (2.50%) TIBCO