Period
to 19 November 2017

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 19 November 2017 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
19 Nov 2017
Same period 2016 Same period 2015
Rank 23 18 -
Rank change year-on-year -5 - +31
Contract jobs citing TDD 76 26 0
As % of all contract IT jobs advertised in Northern Ireland 12.24% 8.72% -
As % of the Processes & Methodologies category 13.64% 11.16% -
Number of daily rates quoted 70 24 0
Northern Ireland median daily rate £418 £385 -
Median daily rate % change year-on-year +8.44% - -
UK median daily rate £488 £450 £438
% change year-on-year +8.33% +2.86% +2.94%
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% -

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 557 233 99
As % of all contract IT jobs advertised in Northern Ireland 89.69% 78.19% 70.21%
Number of daily rates quoted 440 136 57
Northern Ireland median daily rate £413 £360 £325
Median daily rate % change year-on-year +14.58% +10.77% +1.56%
10th Percentile £302 £139 £102
90th Percentile £500 £438 £525
UK median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +3.13%
Number of hourly rates quoted 9 25 2
Northern Ireland median hourly rate £14.00 £14.25 £15.25
Median hourly rate % change year-on-year -1.75% -6.56% +17.31%
10th Percentile £10.45 £10.00 £14.13
90th Percentile £23.75 £35.00 £16.38
UK median hourly rate £23.32 £24.00 £22.50
% change year-on-year -2.83% +6.67% +18.42%

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 19 November 2017.

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 19 November 2017. 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 74 £420 +9.09% 2
TDD
UK

For the 6 months to 19 November 2017, 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 47 (61.84%) Agile Software Development
2 46 (60.53%) Java
3 45 (59.21%) Finance
4 43 (56.58%) Test Automation
5 39 (51.32%) JavaScript
5 39 (51.32%) AngularJS
6 37 (48.68%) Relational Database
6 37 (48.68%) Hibernate
6 37 (48.68%) Spring
7 36 (47.37%) Oracle
7 36 (47.37%) CSS
7 36 (47.37%) Backbone.js
8 35 (46.05%) SQL
8 35 (46.05%) MVC
9 34 (44.74%) DB2
9 34 (44.74%) Twitter Bootstrap
10 32 (42.11%) Waterfall
11 31 (40.79%) DB2 UDB
11 31 (40.79%) RDBMS
12 28 (36.84%) C#
12 28 (36.84%) Continuous Integration
13 26 (34.21%) XML
14 25 (32.89%) Spring Integration
15 24 (31.58%) Performance Improvement
15 24 (31.58%) Banking
15 24 (31.58%) Visual Studio
15 24 (31.58%) Multithreading
16 23 (30.26%) RESTful
17 22 (28.95%) WebLogic
18 21 (27.63%) Web Services

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 22 (28.95%) WebLogic
2 20 (26.32%) WebSphere
3 2 (2.63%) JBoss
3 2 (2.63%) Tomcat
Communications & Networking
1 6 (7.89%) FTP
Database & Business Intelligence
1 37 (48.68%) Relational Database
2 34 (44.74%) DB2
3 31 (40.79%) DB2 UDB
3 31 (40.79%) RDBMS
4 7 (9.21%) SQL Server
5 2 (2.63%) Hadoop
5 2 (2.63%) Hazelcast
5 2 (2.63%) MongoDB
5 2 (2.63%) MySQL
5 2 (2.63%) NoSQL
5 2 (2.63%) Redis
6 1 (1.32%) Big Data
Development Applications
1 24 (31.58%) Visual Studio
2 21 (27.63%) Cucumber
2 21 (27.63%) Eclipse
2 21 (27.63%) JUnit
3 19 (25.00%) Bower
3 19 (25.00%) Grunt
3 19 (25.00%) Jasmine
4 4 (5.26%) Hudson
4 4 (5.26%) Jenkins
5 3 (3.95%) Selenium
6 2 (2.63%) Atlassian Bamboo
6 2 (2.63%) FitNesse
6 2 (2.63%) Git (software)
6 2 (2.63%) IntelliJ
6 2 (2.63%) JBehave
6 2 (2.63%) JIRA
6 2 (2.63%) Maven
6 2 (2.63%) Mockito
6 2 (2.63%) Subversion
6 2 (2.63%) TeamCity
General
1 45 (59.21%) Finance
2 24 (31.58%) Banking
3 14 (18.42%) Front Office
4 1 (1.32%) Investment Banking
Job Titles
1 72 (94.74%) Developer
2 42 (55.26%) Java Developer
3 40 (52.63%) Senior Developer
4 26 (34.21%) C# Developer
5 21 (27.63%) Senior Java Developer
6 17 (22.37%) Senior C# Developer
7 16 (21.05%) C++ Developer
7 16 (21.05%) C++/C# Developer
8 13 (17.11%) Senior C++ Developer
9 6 (7.89%) Full Stack Developer
10 5 (6.58%) Real Time Developer
11 4 (5.26%) .NET Developer
11 4 (5.26%) C Developer
12 3 (3.95%) Analyst
12 3 (3.95%) Integration Developer
13 2 (2.63%) Front End Java Developer (Client-Side Java Developer)
13 2 (2.63%) Senior .NET Developer
13 2 (2.63%) Senior SQL Developer
13 2 (2.63%) Test Analyst
13 2 (2.63%) Test Automation Engineer
Libraries, Frameworks & Software Standards
1 39 (51.32%) AngularJS
2 37 (48.68%) Hibernate
2 37 (48.68%) Spring
3 36 (47.37%) Backbone.js
3 36 (47.37%) CSS
4 34 (44.74%) Twitter Bootstrap
5 26 (34.21%) XML
6 25 (32.89%) Spring Integration
7 23 (30.26%) RESTful
8 21 (27.63%) Web Services
9 20 (26.32%) Ajax
9 20 (26.32%) JSP
9 20 (26.32%) Struts
10 18 (23.68%) Gherkin
11 8 (10.53%) JMS
12 6 (7.89%) .NET
12 6 (7.89%) FIX Protocol
12 6 (7.89%) Spring Batch
13 4 (5.26%) .NET Framework
13 4 (5.26%) HTML5
Miscellaneous
1 15 (19.74%) Analytical Skills
1 15 (19.74%) Data Structures
1 15 (19.74%) Virtual Team
2 10 (13.16%) Derivative
3 9 (11.84%) Mobile App
4 6 (7.89%) SWIFT
5 2 (2.63%) Equity Derivative
5 2 (2.63%) Greenfield Project
6 1 (1.32%) Enterprise Software
6 1 (1.32%) Equities
6 1 (1.32%) Foreign Exchange (FX)
Operating Systems
1 6 (7.89%) Linux
1 6 (7.89%) Unix
2 1 (1.32%) Windows
2 1 (1.32%) Windows Server
Processes & Methodologies
1 47 (61.84%) Agile Software Development
2 43 (56.58%) Test Automation
3 35 (46.05%) MVC
4 32 (42.11%) Waterfall
5 28 (36.84%) Continuous Integration
6 24 (31.58%) Multithreading
6 24 (31.58%) Performance Improvement
7 20 (26.32%) Asynchronous Programming
7 20 (26.32%) Low Latency
8 14 (18.42%) Refactoring
9 8 (10.53%) Analytics
9 8 (10.53%) Data Analytics
9 8 (10.53%) Project Management
9 8 (10.53%) Time Management
10 7 (9.21%) Integration Testing
11 6 (7.89%) BDD
11 6 (7.89%) ETL
12 5 (6.58%) Information Security
13 4 (5.26%) Migration
13 4 (5.26%) Pair Programming
Programming Languages
1 46 (60.53%) Java
2 39 (51.32%) JavaScript
3 35 (46.05%) SQL
4 28 (36.84%) C#
5 20 (26.32%) C++
6 6 (7.89%) R
7 4 (5.26%) C
8 2 (2.63%) Python
8 2 (2.63%) Ruby
8 2 (2.63%) TypeScript
Qualifications
1 14 (18.42%) Degree
2 1 (1.32%) Computer Science Degree
Quality Assurance & Compliance
1 3 (3.95%) QA
Vendors
1 36 (47.37%) Oracle
2 3 (3.95%) Microsoft
3 1 (1.32%) Infragistics