Period
to 24 November 2017

The following table provides summary statistics for contract job vacancies advertised in Belfast 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 24 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)
County Antrim > Belfast
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 20 14 -
Rank change year-on-year -6 - +32
Contract jobs citing TDD 76 23 0
As % of all contract IT jobs advertised in Belfast 13.10% 8.55% -
As % of the Processes & Methodologies category 14.67% 10.80% -
Number of daily rates quoted 70 23 0
Belfast median daily rate £420 £385 -
Median daily rate % change year-on-year +9.09% - -
County Antrim median daily rate £420 £385 -
% change year-on-year +9.09% - -
Number of hourly rates quoted 0 0 0
Belfast median hourly rate - - -
County Antrim median hourly rate - - -

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 Belfast with a requirement for process or methodology skills.

All Process and Methodology Skills
Belfast
Contract vacancies with a requirement for process or methodology skills 518 213 92
As % of all contract IT jobs advertised in Belfast 89.31% 79.18% 72.44%
Number of daily rates quoted 406 127 52
Belfast median daily rate £413 £350 £323
Median daily rate % change year-on-year +17.86% +8.53% +2.38%
10th Percentile £303 £138 £100
90th Percentile £513 £425 £525
County Antrim median daily rate £413 £350 £323
% change year-on-year +17.86% +8.53% +2.38%
Number of hourly rates quoted 9 19 2
Belfast 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 £18.00 £16.38
County Antrim median hourly rate £14.00 £13.63 £15.25
% change year-on-year +2.75% -10.66% +17.31%

TDD
Job Vacancy Trend in Belfast

Job postings citing TDD as a percentage of all IT jobs advertised in Belfast.

Job vacancy trend for TDD in Belfast

TDD
Contractor Daily Rate Trend in Belfast

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

Contractor daily rate trend for TDD in Belfast

TDD
Contractor Daily Rate Histogram in Belfast

The daily rate distribution of IT jobs citing TDD in Belfast over the 6 months to 24 November 2017.

Contractor daily rate histogram for TDD in Belfast

For the 6 months to 24 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 Belfast region with a requirement for TDD.

1 45 (59.21%) Test Automation
2 43 (56.58%) Finance
2 43 (56.58%) Agile Software Development
3 42 (55.26%) Java
4 37 (48.68%) JavaScript
4 37 (48.68%) AngularJS
5 35 (46.05%) Hibernate
5 35 (46.05%) Spring
6 34 (44.74%) SQL
6 34 (44.74%) Oracle
6 34 (44.74%) CSS
6 34 (44.74%) Relational Database
6 34 (44.74%) Backbone.js
7 33 (43.42%) MVC
8 32 (42.11%) DB2
8 32 (42.11%) C#
8 32 (42.11%) Twitter Bootstrap
9 30 (39.47%) RDBMS
9 30 (39.47%) DB2 UDB
9 30 (39.47%) Continuous Integration
9 30 (39.47%) Waterfall
10 28 (36.84%) Multithreading
10 28 (36.84%) Visual Studio
10 28 (36.84%) Performance Improvement
11 24 (31.58%) Spring Integration
11 24 (31.58%) Low Latency
11 24 (31.58%) Asynchronous Programming
11 24 (31.58%) C++
11 24 (31.58%) XML
11 24 (31.58%) Banking

TDD
Co-occurring IT Skills in Belfast 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 20 (26.32%) WebLogic
2 18 (23.68%) WebSphere
3 2 (2.63%) JBoss
3 2 (2.63%) Tomcat
Communications & Networking
1 5 (6.58%) FTP
Database & Business Intelligence
1 34 (44.74%) Relational Database
2 32 (42.11%) DB2
3 30 (39.47%) DB2 UDB
3 30 (39.47%) 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 28 (36.84%) Visual Studio
2 19 (25.00%) Cucumber
2 19 (25.00%) Eclipse
2 19 (25.00%) JUnit
3 17 (22.37%) Bower
3 17 (22.37%) Grunt
3 17 (22.37%) 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 43 (56.58%) Finance
2 24 (31.58%) Banking
3 12 (15.79%) Front Office
4 2 (2.63%) Investment Banking
Job Titles
1 72 (94.74%) Developer
2 38 (50.00%) Java Developer
2 38 (50.00%) Senior Developer
3 30 (39.47%) C# Developer
4 19 (25.00%) C++ Developer
4 19 (25.00%) C++/C# Developer
5 18 (23.68%) Senior C# Developer
5 18 (23.68%) Senior Java Developer
6 14 (18.42%) Senior C++ Developer
7 6 (7.89%) Full Stack Developer
8 5 (6.58%) Real Time Developer
9 4 (5.26%) .NET Developer
9 4 (5.26%) C Developer
10 3 (3.95%) Analyst
10 3 (3.95%) Integration Developer
11 2 (2.63%) Front End Java Developer (Client-Side Java Developer)
11 2 (2.63%) Senior .NET Developer
11 2 (2.63%) Senior SQL Developer
11 2 (2.63%) Test Analyst
11 2 (2.63%) Test Engineer
Libraries, Frameworks & Software Standards
1 37 (48.68%) AngularJS
2 35 (46.05%) Hibernate
2 35 (46.05%) Spring
3 34 (44.74%) Backbone.js
3 34 (44.74%) CSS
4 32 (42.11%) Twitter Bootstrap
5 24 (31.58%) Spring Integration
5 24 (31.58%) XML
6 21 (27.63%) RESTful
7 19 (25.00%) Web Services
8 18 (23.68%) Ajax
8 18 (23.68%) JSP
8 18 (23.68%) Struts
9 17 (22.37%) Gherkin
10 7 (9.21%) JMS
11 6 (7.89%) .NET
11 6 (7.89%) Spring Batch
12 5 (6.58%) FIX Protocol
13 4 (5.26%) .NET Framework
13 4 (5.26%) HTML5
Miscellaneous
1 19 (25.00%) Data Structures
2 15 (19.74%) Virtual Team
3 13 (17.11%) Analytical Skills
4 11 (14.47%) Derivative
5 9 (11.84%) Mobile App
6 5 (6.58%) SWIFT
7 2 (2.63%) Equity Derivative
7 2 (2.63%) Greenfield Project
8 1 (1.32%) Enterprise Software
8 1 (1.32%) Equities
8 1 (1.32%) Foreign Exchange (FX)
Operating Systems
1 4 (5.26%) Linux
1 4 (5.26%) Unix
2 1 (1.32%) Windows
2 1 (1.32%) Windows Server
Processes & Methodologies
1 45 (59.21%) Test Automation
2 43 (56.58%) Agile Software Development
3 33 (43.42%) MVC
4 30 (39.47%) Continuous Integration
4 30 (39.47%) Waterfall
5 28 (36.84%) Multithreading
5 28 (36.84%) Performance Improvement
6 24 (31.58%) Asynchronous Programming
6 24 (31.58%) Low Latency
7 18 (23.68%) Refactoring
8 8 (10.53%) Analytics
8 8 (10.53%) Data Analytics
9 7 (9.21%) Project Management
9 7 (9.21%) Time Management
10 6 (7.89%) BDD
11 5 (6.58%) ETL
11 5 (6.58%) Integration Testing
12 4 (5.26%) Migration
13 3 (3.95%) Information Security
13 3 (3.95%) Microservices
Programming Languages
1 42 (55.26%) Java
2 37 (48.68%) JavaScript
3 34 (44.74%) SQL
4 32 (42.11%) C#
5 24 (31.58%) 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 2 (2.63%) Computer Science Degree
Quality Assurance & Compliance
1 3 (3.95%) QA
Vendors
1 34 (44.74%) Oracle
2 3 (3.95%) Microsoft
3 1 (1.32%) Infragistics