Period
to 18 September 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 September 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 Sep 2018
Same period 2017 Same period 2016
Rank 25 31 30
Rank change year-on-year +6 -1 -3
Contract jobs citing TDD 27 71 5
As % of all contract IT jobs advertised in Northern Ireland 6.82% 10.97% 2.10%
As % of the Processes & Methodologies category 8.18% 12.48% 2.51%
Number of daily rates quoted 23 65 3
Northern Ireland median daily rate £431 £415 £413
Median daily rate % change year-on-year +3.86% +0.61% +10.00%
10th Percentile £309 £363 £375
90th Percentile £514 £513 £449
UK median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 0 0 0
Northern Ireland median hourly rate - - -
UK median hourly rate £45.00 £42.50 £41.25
% change year-on-year +5.88% +3.03% -0.60%

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 330 569 199
As % of all contract IT jobs advertised in Northern Ireland 83.33% 87.94% 83.61%
Number of daily rates quoted 217 464 100
Northern Ireland median daily rate £431 £413 £325
Median daily rate % change year-on-year +4.48% +26.92% +8.33%
10th Percentile £275 £324 £163
90th Percentile £521 £488 £475
UK median daily rate £450 £450 £425
% change year-on-year - +5.88% +6.12%
Number of hourly rates quoted 18 5 21
Northern Ireland median hourly rate £20.00 £14.00 £13.50
Median hourly rate % change year-on-year +42.86% +3.70% -57.81%
10th Percentile £12.45 £13.63 £10.00
90th Percentile £40.15 £19.37 £18.00
UK median hourly rate £20.50 £24.00 £23.00
% change year-on-year -14.58% +4.35% +4.55%

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 September 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 September 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 +4 22 £432 +4.10% 11
TDD
UK

For the 6 months to 18 September 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 22 (81.48%) Java
2 18 (66.67%) Agile Software Development
3 17 (62.96%) Test Automation
4 15 (55.56%) Banking
4 15 (55.56%) Spring
4 15 (55.56%) Hibernate
5 14 (51.85%) Finance
5 14 (51.85%) JavaScript
5 14 (51.85%) SQL
6 12 (44.44%) JUnit
6 12 (44.44%) CSS
6 12 (44.44%) AngularJS
7 11 (40.74%) Cucumber
7 11 (40.74%) Oracle
7 11 (40.74%) MVC
8 10 (37.04%) Multithreading
8 10 (37.04%) Git (software)
8 10 (37.04%) Jenkins
9 9 (33.33%) Twitter Bootstrap
9 9 (33.33%) Grunt
9 9 (33.33%) Backbone.js
9 9 (33.33%) RESTful
9 9 (33.33%) WebSphere
9 9 (33.33%) JSP
9 9 (33.33%) DB2
9 9 (33.33%) Web Services
9 9 (33.33%) XML
9 9 (33.33%) Eclipse
10 8 (29.63%) WebLogic
10 8 (29.63%) C#

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 9 (33.33%) WebSphere
2 8 (29.63%) WebLogic
3 1 (3.70%) Apache
3 1 (3.70%) Confluence
Cloud Services
1 2 (7.41%) npm
1 2 (7.41%) Yarn
2 1 (3.70%) Amazon AWS
Communications & Networking
1 3 (11.11%) FTP
2 1 (3.70%) Internet
Database & Business Intelligence
1 9 (33.33%) DB2
2 8 (29.63%) RDBMS
2 8 (29.63%) Relational Database
3 6 (22.22%) DB2 UDB
4 4 (14.81%) SQL Server
5 2 (7.41%) NoSQL
5 2 (7.41%) SQL Server 2014
6 1 (3.70%) MongoDB
6 1 (3.70%) SQL Server 2008
Development Applications
1 12 (44.44%) JUnit
2 11 (40.74%) Cucumber
3 10 (37.04%) Git (software)
3 10 (37.04%) Jenkins
4 9 (33.33%) Eclipse
4 9 (33.33%) Grunt
5 8 (29.63%) Bower
5 8 (29.63%) Jasmine
6 7 (25.93%) Maven
7 6 (22.22%) JIRA
8 5 (18.52%) Selenium
8 5 (18.52%) TeamCity
9 4 (14.81%) Visual Studio
10 2 (7.41%) Bitbucket
11 1 (3.70%) gulp
11 1 (3.70%) SonarQube
11 1 (3.70%) WebDriver
11 1 (3.70%) webpack
General
1 15 (55.56%) Banking
2 14 (51.85%) Finance
3 6 (22.22%) Front Office
4 1 (3.70%) Investment Banking
Job Titles
1 24 (88.89%) Developer
2 19 (70.37%) Java Developer
3 4 (14.81%) .NET Developer
3 4 (14.81%) Full Stack Developer
3 4 (14.81%) Senior Developer
3 4 (14.81%) Senior Java Developer
4 2 (7.41%) Analyst
4 2 (7.41%) Angular Developer
4 2 (7.41%) Automation Test Analyst
4 2 (7.41%) Automation Test Lead
4 2 (7.41%) Junior
4 2 (7.41%) Junior Developer
4 2 (7.41%) Junior Java Developer
4 2 (7.41%) Lead Test Analyst
4 2 (7.41%) Selenium Test Analyst
4 2 (7.41%) Senior Full Stack Developer
4 2 (7.41%) Test Analyst
5 1 (3.70%) QA Engineer
5 1 (3.70%) Senior JavaScript Developer
5 1 (3.70%) VB.NET Developer
Libraries, Frameworks & Software Standards
1 15 (55.56%) Hibernate
1 15 (55.56%) Spring
2 12 (44.44%) AngularJS
2 12 (44.44%) CSS
3 9 (33.33%) Backbone.js
3 9 (33.33%) JSP
3 9 (33.33%) RESTful
3 9 (33.33%) Twitter Bootstrap
3 9 (33.33%) Web Services
3 9 (33.33%) XML
4 8 (29.63%) Spring Batch
5 7 (25.93%) ActiveMQ
6 6 (22.22%) JSON
6 6 (22.22%) Spring Integration
7 5 (18.52%) .NET
7 5 (18.52%) iBATIS
7 5 (18.52%) Spring Boot
8 4 (14.81%) Ajax
8 4 (14.81%) Akka
8 4 (14.81%) Struts
Miscellaneous
1 4 (14.81%) Equities
2 3 (11.11%) Data Structures
2 3 (11.11%) SWIFT
3 2 (7.41%) Derivative
3 2 (7.41%) Mobile App
4 1 (3.70%) Analytical Skills
4 1 (3.70%) Enterprise Software
4 1 (3.70%) Equity Derivative
4 1 (3.70%) Foreign Exchange (FX)
4 1 (3.70%) Grid Computing
4 1 (3.70%) Virtual Team
Operating Systems
1 4 (14.81%) Unix
2 3 (11.11%) Linux
2 3 (11.11%) Windows
3 2 (7.41%) Windows Server
Processes & Methodologies
1 18 (66.67%) Agile Software Development
2 17 (62.96%) Test Automation
3 11 (40.74%) MVC
4 10 (37.04%) Multithreading
5 8 (29.63%) Waterfall
6 6 (22.22%) ETL
6 6 (22.22%) Project Management
6 6 (22.22%) Time Management
7 5 (18.52%) BDD
8 4 (14.81%) Unit Testing
9 3 (11.11%) Continuous Integration
9 3 (11.11%) OO
9 3 (11.11%) OOP
9 3 (11.11%) SOLID
10 2 (7.41%) API Testing
10 2 (7.41%) Garbage Collection
10 2 (7.41%) Low Latency
10 2 (7.41%) Mentoring
10 2 (7.41%) Scenario Testing
10 2 (7.41%) SDLC
Programming Languages
1 22 (81.48%) Java
2 14 (51.85%) JavaScript
2 14 (51.85%) SQL
3 8 (29.63%) C#
3 8 (29.63%) Java 8
4 5 (18.52%) C++
4 5 (18.52%) Python
5 2 (7.41%) ES6
5 2 (7.41%) TypeScript
6 1 (3.70%) Scala
6 1 (3.70%) VB.NET
Qualifications
1 5 (18.52%) Degree
Quality Assurance & Compliance
1 1 (3.70%) PMO
1 1 (3.70%) QA
System Software
1 2 (7.41%) Docker
2 1 (3.70%) Platform Symphony
Systems Management
1 1 (3.70%) Ansible
Vendors
1 11 (40.74%) Oracle
2 2 (7.41%) IBM
3 1 (3.70%) Capita
3 1 (3.70%) FXall
3 1 (3.70%) Reuters
3 1 (3.70%) TIBCO