Period
to 15 December 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 15 December 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
15 Dec 2018
Same period 2017 Same period 2016
Rank 18 19 17
Rank change year-on-year +1 -2 -
Contract jobs citing TDD 33 79 27
As % of all contract IT jobs advertised in Northern Ireland 8.46% 13.79% 8.28%
As % of the Processes & Methodologies category 9.94% 15.31% 10.31%
Number of daily rates quoted 25 73 26
Northern Ireland median daily rate £412 £430 £385
Median daily rate % change year-on-year -4.19% +11.69% -
10th Percentile £334 £363 £359
90th Percentile £456 £535 £420
UK median daily rate £500 £488 £450
% change year-on-year +2.56% +8.33% +1.12%
Number of hourly rates quoted 0 0 0
Northern Ireland median hourly rate - - -
UK median hourly rate £45.00 £45.00 £42.50
% change year-on-year - +5.88% +9.68%

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 332 516 262
As % of all contract IT jobs advertised in Northern Ireland 85.13% 90.05% 80.37%
Number of daily rates quoted 213 394 162
Northern Ireland median daily rate £400 £413 £353
Median daily rate % change year-on-year -3.03% +17.02% +8.46%
10th Percentile £308 £301 £163
90th Percentile £515 £518 £438
UK median daily rate £465 £450 £425
% change year-on-year +3.33% +5.88% +2.41%
Number of hourly rates quoted 24 10 25
Northern Ireland median hourly rate £26.50 £15.00 £13.00
Median hourly rate % change year-on-year +76.67% +15.38% -14.75%
10th Percentile £11.17 £10.85 £10.00
90th Percentile £42.78 £35.88 £35.00
UK median hourly rate £22.47 £24.02 £22.67
% change year-on-year -6.47% +5.97% +3.03%

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 15 December 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 15 December 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 31 £412 -4.19% 5
TDD
UK

For the 6 months to 15 December 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 30 (90.91%) Agile Software Development
2 24 (72.73%) Test Automation
3 23 (69.70%) Java
3 23 (69.70%) JavaScript
4 22 (66.67%) SQL
5 21 (63.64%) CSS
6 20 (60.61%) AngularJS
7 19 (57.58%) Relational Database
7 19 (57.58%) RDBMS
7 19 (57.58%) Cucumber
8 18 (54.55%) RESTful
8 18 (54.55%) Waterfall
8 18 (54.55%) Backbone.js
8 18 (54.55%) Spring Batch
8 18 (54.55%) Spring Integration
8 18 (54.55%) Spring
8 18 (54.55%) Banking
8 18 (54.55%) MVC
8 18 (54.55%) Hibernate
8 18 (54.55%) Web Services
8 18 (54.55%) Twitter Bootstrap
9 17 (51.52%) Gherkin
9 17 (51.52%) XML
9 17 (51.52%) JSP
9 17 (51.52%) Oracle
9 17 (51.52%) Struts
9 17 (51.52%) DB2
9 17 (51.52%) JUnit
9 17 (51.52%) Finance
9 17 (51.52%) Eclipse

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 17 (51.52%) WebSphere
2 16 (48.48%) WebLogic
3 3 (9.09%) Apache
4 1 (3.03%) Confluence
4 1 (3.03%) Drupal
Cloud Services
1 2 (6.06%) Amazon AWS
2 1 (3.03%) Microsoft Azure
Communications & Networking
1 4 (12.12%) FTP
2 2 (6.06%) SSH
2 2 (6.06%) SSL
Database & Business Intelligence
1 19 (57.58%) RDBMS
1 19 (57.58%) Relational Database
2 17 (51.52%) DB2
3 16 (48.48%) DB2 UDB
4 6 (18.18%) NoSQL
5 3 (9.09%) MongoDB
6 2 (6.06%) MySQL
7 1 (3.03%) Cosmos DB
7 1 (3.03%) RavenDB
7 1 (3.03%) SQL Server
Development Applications
1 19 (57.58%) Cucumber
2 17 (51.52%) Eclipse
2 17 (51.52%) Jasmine
2 17 (51.52%) JUnit
3 16 (48.48%) Bower
3 16 (48.48%) Grunt
4 6 (18.18%) Selenium
5 4 (12.12%) JIRA
6 3 (9.09%) TestComplete
7 2 (6.06%) TeamCity
8 1 (3.03%) Bitbucket
8 1 (3.03%) Git (software)
8 1 (3.03%) JSUnit
8 1 (3.03%) Octopus Deploy
8 1 (3.03%) Visual Studio
8 1 (3.03%) WebDriver
General
1 18 (54.55%) Banking
2 17 (51.52%) Finance
3 1 (3.03%) Legal
Job Titles
1 24 (72.73%) Developer
2 20 (60.61%) Java Developer
3 13 (39.39%) Senior Developer
3 13 (39.39%) Senior Java Developer
4 3 (9.09%) .NET Developer
4 3 (9.09%) Automation Tester
4 3 (9.09%) Tester
5 2 (6.06%) Analyst
5 2 (6.06%) Automation Test Analyst
5 2 (6.06%) Automation Test Lead
5 2 (6.06%) Lead Test Analyst
5 2 (6.06%) Linux Specialist
5 2 (6.06%) Selenium Test Analyst
5 2 (6.06%) Test Analyst
6 1 (3.03%) JavaScript Developer
6 1 (3.03%) QA Manager
6 1 (3.03%) QA Test Manager
6 1 (3.03%) Report Developer
6 1 (3.03%) Scala Developer
6 1 (3.03%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 21 (63.64%) CSS
2 20 (60.61%) AngularJS
3 18 (54.55%) Backbone.js
3 18 (54.55%) Hibernate
3 18 (54.55%) RESTful
3 18 (54.55%) Spring
3 18 (54.55%) Spring Batch
3 18 (54.55%) Spring Integration
3 18 (54.55%) Twitter Bootstrap
3 18 (54.55%) Web Services
4 17 (51.52%) Ajax
4 17 (51.52%) Gherkin
4 17 (51.52%) JSP
4 17 (51.52%) Struts
4 17 (51.52%) XML
5 4 (12.12%) .NET
5 4 (12.12%) FIX Protocol
5 4 (12.12%) JMS
6 2 (6.06%) LAMP
6 2 (6.06%) Velocity
Miscellaneous
1 4 (12.12%) SWIFT
2 3 (9.09%) Analytical Skills
2 3 (9.09%) Foreign Exchange (FX)
3 2 (6.06%) Clustering
3 2 (6.06%) N-Tier
4 1 (3.03%) Derivative
4 1 (3.03%) Enterprise Software
4 1 (3.03%) Equities
4 1 (3.03%) Greenfield Project
4 1 (3.03%) Mobile App
4 1 (3.03%) Virtual Team
Operating Systems
1 3 (9.09%) Linux
1 3 (9.09%) Unix
2 2 (6.06%) Red Hat Enterprise Linux
Processes & Methodologies
1 30 (90.91%) Agile Software Development
2 24 (72.73%) Test Automation
3 18 (54.55%) MVC
3 18 (54.55%) Waterfall
4 16 (48.48%) Project Management
4 16 (48.48%) Time Management
5 11 (33.33%) BDD
6 4 (12.12%) DevOps
6 4 (12.12%) ETL
7 3 (9.09%) Continuous Delivery
7 3 (9.09%) Continuous Integration
7 3 (9.09%) Integration Testing
7 3 (9.09%) Issue Tracking
7 3 (9.09%) Requirements Management
7 3 (9.09%) Scrum
8 2 (6.06%) Disaster Recovery
8 2 (6.06%) High Availability
8 2 (6.06%) Multithreading
8 2 (6.06%) Proactive Monitoring
8 2 (6.06%) Problem-Solving
Programming Languages
1 23 (69.70%) Java
1 23 (69.70%) JavaScript
2 22 (66.67%) SQL
3 7 (21.21%) Python
4 5 (15.15%) C#
5 2 (6.06%) Bash Shell
5 2 (6.06%) Perl
5 2 (6.06%) PHP
6 1 (3.03%) C++
6 1 (3.03%) Scala
6 1 (3.03%) TypeScript
6 1 (3.03%) VB.NET
Qualifications
1 16 (48.48%) Degree
2 1 (3.03%) ISEB
2 1 (3.03%) ISTQB
2 1 (3.03%) Microsoft Certification
Quality Assurance & Compliance
1 5 (15.15%) QA
System Software
1 1 (3.03%) Docker
Systems Management
1 3 (9.09%) HP ALM
2 2 (6.06%) Opscode Chef
2 2 (6.06%) Puppet
3 1 (3.03%) Ansible
Vendors
1 17 (51.52%) Oracle
2 3 (9.09%) HP
3 1 (3.03%) IBM
3 1 (3.03%) Microsoft