Period
to 16 January 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 16 January 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
16 Jan 2018
Same period 2017 Same period 2016
Rank 18 18 -
Rank change year-on-year 0 - +38
Contract jobs citing TDD 69 31 0
As % of all contract IT jobs advertised in Northern Ireland 13.64% 8.36% -
As % of the Processes & Methodologies category 15.07% 10.51% -
Number of daily rates quoted 63 29 0
Northern Ireland median daily rate £430 £385 -
Median daily rate % change year-on-year +11.69% - -
UK median daily rate £488 £460 £450
% change year-on-year +5.98% +2.22% +5.88%
Number of hourly rates quoted 0 0 0
Northern Ireland median hourly rate - - -
UK median hourly rate £45.00 £42.50 £40.00
% change year-on-year +5.88% +6.25% +6.67%

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 458 295 116
As % of all contract IT jobs advertised in Northern Ireland 90.51% 79.51% 78.38%
Number of daily rates quoted 339 196 59
Northern Ireland median daily rate £420 £360 £325
Median daily rate % change year-on-year +16.67% +10.77% +8.33%
10th Percentile £285 £213 £234
90th Percentile £525 £475 £505
UK median daily rate £450 £425 £425
% change year-on-year +5.88% - +6.25%
Number of hourly rates quoted 12 24 2
Northern Ireland median hourly rate £16.00 £12.47 £15.25
Median hourly rate % change year-on-year +28.36% -18.26% +17.31%
10th Percentile £11.25 £10.00 £14.13
90th Percentile £37.25 £35.15 £16.38
UK median hourly rate £23.75 £24.43 £23.43
% change year-on-year -2.78% +4.29% +17.13%

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 16 January 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 16 January 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 +3 67 £430 +11.69% 8
TDD
UK

For the 6 months to 16 January 2018, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Northern Ireland region with a requirement for TDD.

1 45 (65.22%) Test Automation
2 42 (60.87%) Finance
3 41 (59.42%) Agile Software Development
4 40 (57.97%) Java
5 37 (53.62%) JavaScript
5 37 (53.62%) AngularJS
6 36 (52.17%) Hibernate
6 36 (52.17%) Spring
7 35 (50.72%) Oracle
7 35 (50.72%) CSS
7 35 (50.72%) Backbone.js
8 33 (47.83%) DB2
8 33 (47.83%) SQL
8 33 (47.83%) MVC
8 33 (47.83%) Twitter Bootstrap
8 33 (47.83%) Relational Database
9 31 (44.93%) RDBMS
9 31 (44.93%) Waterfall
9 31 (44.93%) DB2 UDB
10 29 (42.03%) Banking
11 28 (40.58%) C#
12 26 (37.68%) Visual Studio
12 26 (37.68%) Continuous Integration
12 26 (37.68%) Multithreading
12 26 (37.68%) Performance Improvement
13 25 (36.23%) XML
14 24 (34.78%) Spring Integration
15 23 (33.33%) C++
15 23 (33.33%) Low Latency
15 23 (33.33%) Asynchronous Programming

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 21 (30.43%) WebLogic
2 19 (27.54%) WebSphere
3 2 (2.90%) JBoss
3 2 (2.90%) Tomcat
Communications & Networking
1 6 (8.70%) FTP
Database & Business Intelligence
1 33 (47.83%) DB2
1 33 (47.83%) Relational Database
2 31 (44.93%) DB2 UDB
2 31 (44.93%) RDBMS
3 5 (7.25%) SQL Server
4 2 (2.90%) Hadoop
4 2 (2.90%) Hazelcast
4 2 (2.90%) MongoDB
4 2 (2.90%) MySQL
4 2 (2.90%) NoSQL
4 2 (2.90%) Redis
Development Applications
1 26 (37.68%) Visual Studio
2 20 (28.99%) Cucumber
2 20 (28.99%) Eclipse
2 20 (28.99%) JUnit
3 18 (26.09%) Bower
3 18 (26.09%) Grunt
3 18 (26.09%) Jasmine
4 4 (5.80%) Hudson
4 4 (5.80%) Jenkins
5 2 (2.90%) Atlassian Bamboo
5 2 (2.90%) FitNesse
5 2 (2.90%) Git (software)
5 2 (2.90%) IntelliJ
5 2 (2.90%) JBehave
5 2 (2.90%) JIRA
5 2 (2.90%) Mockito
5 2 (2.90%) Selenium
5 2 (2.90%) SoapUI
5 2 (2.90%) Subversion
5 2 (2.90%) TeamCity
General
1 42 (60.87%) Finance
2 29 (42.03%) Banking
3 5 (7.25%) Front Office
4 2 (2.90%) Investment Banking
Job Titles
1 66 (95.65%) Developer
2 38 (55.07%) Senior Developer
3 36 (52.17%) Java Developer
4 27 (39.13%) C# Developer
5 19 (27.54%) Senior C# Developer
6 18 (26.09%) C++ Developer
6 18 (26.09%) C++/C# Developer
6 18 (26.09%) Senior Java Developer
7 16 (23.19%) Senior C++ Developer
8 6 (8.70%) Full Stack Developer
9 4 (5.80%) C Developer
10 3 (4.35%) Integration Developer
11 2 (2.90%) Automation Test Analyst
11 2 (2.90%) Front End Developer (Client-Side Developer)
11 2 (2.90%) Front End Java Developer (Client-Side Java Developer)
11 2 (2.90%) Java Mobile Developer
11 2 (2.90%) JavaScript Developer
11 2 (2.90%) Real Time Developer
11 2 (2.90%) Test Automation Engineer
11 2 (2.90%) Test Engineer
Libraries, Frameworks & Software Standards
1 37 (53.62%) AngularJS
2 36 (52.17%) Hibernate
2 36 (52.17%) Spring
3 35 (50.72%) Backbone.js
3 35 (50.72%) CSS
4 33 (47.83%) Twitter Bootstrap
5 25 (36.23%) XML
6 24 (34.78%) Spring Integration
7 21 (30.43%) RESTful
8 19 (27.54%) Ajax
8 19 (27.54%) JSP
8 19 (27.54%) Struts
8 19 (27.54%) Web Services
9 17 (24.64%) Gherkin
10 8 (11.59%) JMS
11 6 (8.70%) FIX Protocol
11 6 (8.70%) Spring Batch
12 4 (5.80%) HTML
12 4 (5.80%) HTML5
13 3 (4.35%) .NET
Miscellaneous
1 20 (28.99%) Data Structures
2 15 (21.74%) Virtual Team
3 14 (20.29%) Derivative
4 9 (13.04%) Mobile App
5 6 (8.70%) SWIFT
6 5 (7.25%) Analytical Skills
7 1 (1.45%) Equities
7 1 (1.45%) Greenfield Project
Operating Systems
1 2 (2.90%) Linux
1 2 (2.90%) Unix
2 1 (1.45%) Android
2 1 (1.45%) Windows
Processes & Methodologies
1 45 (65.22%) Test Automation
2 41 (59.42%) Agile Software Development
3 33 (47.83%) MVC
4 31 (44.93%) Waterfall
5 26 (37.68%) Continuous Integration
5 26 (37.68%) Multithreading
5 26 (37.68%) Performance Improvement
6 23 (33.33%) Asynchronous Programming
6 23 (33.33%) Low Latency
7 19 (27.54%) Refactoring
8 8 (11.59%) Analytics
8 8 (11.59%) Data Analytics
9 7 (10.14%) Project Management
9 7 (10.14%) Time Management
10 6 (8.70%) ETL
11 3 (4.35%) Microservices
11 3 (4.35%) Migration
12 2 (2.90%) Front End Development
12 2 (2.90%) Functional Testing
12 2 (2.90%) Non-Functional Testing
Programming Languages
1 40 (57.97%) Java
2 37 (53.62%) JavaScript
3 33 (47.83%) SQL
4 28 (40.58%) C#
5 23 (33.33%) C++
6 4 (5.80%) C
6 4 (5.80%) R
7 2 (2.90%) Python
7 2 (2.90%) Ruby
8 1 (1.45%) Kotlin
Qualifications
1 14 (20.29%) Degree
2 1 (1.45%) Computer Science Degree
Quality Assurance & Compliance
1 2 (2.90%) QA
Vendors
1 35 (50.72%) Oracle
2 2 (2.90%) Microsoft
3 1 (1.45%) Infragistics