The following table provides summary statistics for contract job vacancies advertised in Liverpool with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 3 months to 24 March 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.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
Test-Driven Development (TDD)
Merseyside / Liverpool
Rank 11 - 26
Rank change year-on-year - 0  
Contract jobs citing TDD 24 0 3
As % of all contract IT jobs advertised in Liverpool 9.27% - 1.31%
As % of the Processes & Methodologies category 10.81% - 1.64%
Number of daily rates quoted 20 0 1
Median daily rate £600 - £220
UK excluding London median daily rate £408 £400 £375
% change year-on-year +1.87% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £39.00 £45.75 £36.00
% change year-on-year -14.75% +27.08%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Liverpool with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Liverpool
Contract job vacancies with a requirement for process and methodology skills 222 207 183
As % of all contract IT job vacancies advertised in Liverpool 85.71% 82.14% 79.91%
Number of daily rates quoted 142 161 98
Median daily rate £455 £411 £400
Median daily rate % change year-on-year +10.63% +2.81%  
90% offered a daily rate of more than £300 £291 £240
10% offered a daily rate of more than £600 £500 £675
UK excluding London median daily rate £410 £400 £400
% change year-on-year +2.50% -  
Number of hourly rates quoted 10 1 2
Median hourly rate £13.00 £27.50 £30.96
Median hourly rate % change year-on-year -52.72% -11.16%  
90% offered a hourly rate of more than £11.00 £27.50 £14.39
10% offered a hourly rate of more than £37.50 £27.50 £47.52
UK excluding London median hourly rate £36.00 £39.00 £30.00
% change year-on-year -7.69% +30.00%  

TDD
Job Vacancy Trend in Liverpool

The job posting trend of jobs advertised in Liverpool citing TDD as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Liverpool

TDD
Contractor Daily Rate Trend in Liverpool

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

Contractor daily rate trend for TDD in Liverpool

TDD
Contractor Daily Rate Histogram in Liverpool

The daily rate distribution of IT jobs citing TDD in Liverpool over the 3 months to 24 March 2017.

Contractor daily rate histogram for TDD in Liverpool

TDD
Top 30 Related IT Skills in Liverpool

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

1 27 (93.10%) Agile Software Development
2 20 (68.97%) Java
3 14 (48.28%) Scrum
4 13 (44.83%) BDD
5 12 (41.38%) DevOps
5 12 (41.38%) JavaScript
5 12 (41.38%) HTML
5 12 (41.38%) Git (software)
6 11 (37.93%) Spring
6 11 (37.93%) Oracle
6 11 (37.93%) API Design
6 11 (37.93%) Microservices
7 10 (34.48%) Front End Development
7 10 (34.48%) CSS
7 10 (34.48%) Linux
8 9 (31.03%) Continuous Integration
8 9 (31.03%) RESTful
8 9 (31.03%) Jenkins
9 8 (27.59%) Open Source
9 8 (27.59%) .NET
10 7 (24.14%) SQL
10 7 (24.14%) MySQL
10 7 (24.14%) Kanban
10 7 (24.14%) MongoDB
10 7 (24.14%) NoSQL
10 7 (24.14%) Continuous Delivery
10 7 (24.14%) Spring Boot
11 6 (20.69%) Coaching
11 6 (20.69%) OOD
11 6 (20.69%) VMware

TDD
Top Related IT Skills in Liverpool 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 3 (10.34%) CMS
2 2 (6.90%) Adobe Experience Manager
3 1 (3.45%) DNN
3 1 (3.45%) Drupal
3 1 (3.45%) EPiServer
3 1 (3.45%) Immediacy CMS
3 1 (3.45%) Kentico
3 1 (3.45%) Sitecore CMS
3 1 (3.45%) Sitefinity
3 1 (3.45%) Umbraco
Applications
1 1 (3.45%) Fireworks
1 1 (3.45%) Photoshop
Cloud Services
1 1 (3.45%) Amazon AWS
Database & Business Intelligence
1 7 (24.14%) MongoDB
1 7 (24.14%) MySQL
1 7 (24.14%) NoSQL
2 1 (3.45%) SQL Server
2 1 (3.45%) SQL Server 2014
Development Applications
1 12 (41.38%) Git (software)
2 9 (31.03%) Jenkins
3 2 (6.90%) Grunt
3 2 (6.90%) gulp
General
1 1 (3.45%) Banking
Job Titles
1 24 (82.76%) Developer
2 14 (48.28%) Java Developer
3 12 (41.38%) Agile Developer
3 12 (41.38%) Agile Java Developer
4 9 (31.03%) Senior Developer
4 9 (31.03%) Senior Java Developer
5 8 (27.59%) Senior Agile Developer
5 8 (27.59%) Senior Agile Java Developer
6 6 (20.69%) Principal Developer
7 5 (17.24%) .NET Developer
8 3 (10.34%) Agile .NET Developer
8 3 (10.34%) Java Engineer
8 3 (10.34%) Principal .NET Developer
8 3 (10.34%) Principal Java Developer
8 3 (10.34%) Senior Java Engineer
9 2 (6.90%) Agile Scrum Master
9 2 (6.90%) Angular Developer
9 2 (6.90%) DevOps Engineer
9 2 (6.90%) PHP Laravel Developer
9 2 (6.90%) Senior DevOps
Libraries, Frameworks & Software Standards
1 12 (41.38%) HTML
2 11 (37.93%) Spring
3 10 (34.48%) CSS
4 9 (31.03%) RESTful
5 8 (27.59%) .NET
6 7 (24.14%) Spring Boot
7 4 (13.79%) AngularJS
7 4 (13.79%) HTML5
7 4 (13.79%) J2EE
8 3 (10.34%) .NET Framework
9 2 (6.90%) ASP.NET
9 2 (6.90%) ASP.NET MVC
9 2 (6.90%) CSS3
9 2 (6.90%) jQuery
9 2 (6.90%) Laravel
10 1 (3.45%) ASP.NET Web API
10 1 (3.45%) KnockoutJS
10 1 (3.45%) Razor View Engine
10 1 (3.45%) REST
10 1 (3.45%) Twitter Bootstrap
Miscellaneous
1 1 (3.45%) Fintech
1 1 (3.45%) Mobile App
1 1 (3.45%) Tandem
Operating Systems
1 10 (34.48%) Linux
2 3 (10.34%) Unix
Processes & Methodologies
1 27 (93.10%) Agile Software Development
2 14 (48.28%) Scrum
3 13 (44.83%) BDD
4 12 (41.38%) DevOps
5 11 (37.93%) API Design
5 11 (37.93%) Microservices
6 10 (34.48%) Front End Development
7 9 (31.03%) Continuous Integration
8 8 (27.59%) Open Source
9 7 (24.14%) Continuous Delivery
9 7 (24.14%) Kanban
10 6 (20.69%) Coaching
10 6 (20.69%) Configuration Management
10 6 (20.69%) OOD
11 5 (17.24%) Pair Programming
12 3 (10.34%) Mentoring
13 2 (6.90%) Continuous Improvement
13 2 (6.90%) High Availability
13 2 (6.90%) MVC
13 2 (6.90%) Stakeholder Engagement
Programming Languages
1 20 (68.97%) Java
2 12 (41.38%) JavaScript
3 7 (24.14%) SQL
4 2 (6.90%) C#
4 2 (6.90%) PHP
System Software
1 3 (10.34%) VMware Infrastructure
Vendors
1 11 (37.93%) Oracle
2 6 (20.69%) VMware
3 1 (3.45%) Alterian
3 1 (3.45%) Microsoft
3 1 (3.45%) Sitecore
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