Period
to 23 February 2018

The following table provides summary statistics for permanent job vacancies advertised in Liverpool with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 23 February 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Merseyside > Liverpool
6 months to
23 Feb 2018
Same period 2017 Same period 2016
Rank 37 40 27
Rank change year-on-year +3 -13 +2
Permanent jobs citing TDD 35 52 51
As % of all permanent IT jobs advertised in Liverpool 4.85% 5.27% 6.68%
As % of the Processes & Methodologies category 5.30% 6.00% 7.46%
Number of salaries quoted 32 46 62
Liverpool median annual salary £50,000 £40,000 £40,000
Median salary % change year-on-year +25.00% - +14.29%
10th Percentile £33,750 £35,000 £29,775
90th Percentile £52,500 £57,500 £45,000
Merseyside median annual salary £50,000 £40,000 £40,000
% change year-on-year +25.00% - +14.29%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Liverpool with a requirement for process or methodology skills.

All Process and Methodology Skills
Liverpool
Permanent vacancies with a requirement for process or methodology skills 661 866 684
As % of all permanent IT jobs advertised in Liverpool 91.68% 87.83% 89.53%
Number of salaries quoted 532 576 537
Liverpool median annual salary £40,000 £40,000 £40,000
10th Percentile £26,250 £26,250 £26,135
90th Percentile £63,750 £57,500 £55,000
Merseyside median annual salary £40,000 £40,000 £40,000

TDD
Job Vacancy Trend in Liverpool

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

Job vacancy trend for TDD in Liverpool

TDD
Salary Trend in Liverpool

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Liverpool.

Salary trend for TDD in Liverpool

TDD
Salary Histogram in Liverpool

The salary distribution of IT jobs citing TDD in Liverpool over the 6 months to 23 February 2018.

Salary histogram for TDD in Liverpool

For the 6 months to 23 February 2018, IT 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 permanent job ads across the Liverpool region with a requirement for TDD.

1 33 (94.29%) Agile Software Development
2 22 (62.86%) Selenium
3 19 (54.29%) WebDriver
4 15 (42.86%) REST
4 15 (42.86%) MVC
4 15 (42.86%) JavaScript
4 15 (42.86%) PHP
4 15 (42.86%) MySQL
4 15 (42.86%) API Development
5 14 (40.00%) CSS
5 14 (40.00%) HTML
5 14 (40.00%) Software Engineering
5 14 (40.00%) Test Automation
6 13 (37.14%) HTML5
6 13 (37.14%) Zend
6 13 (37.14%) CakePHP
6 13 (37.14%) CSS3
6 13 (37.14%) Laravel
6 13 (37.14%) Functional Testing
6 13 (37.14%) Selenium IDE
6 13 (37.14%) Banking
6 13 (37.14%) SOAP
6 13 (37.14%) Finance
7 11 (31.43%) Java
7 11 (31.43%) Scrum
8 10 (28.57%) SQL
8 10 (28.57%) QA
9 9 (25.71%) BDD
9 9 (25.71%) SQL Server
10 8 (22.86%) SDLC

TDD
Co-occurring 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 1 (2.86%) Tomcat
Cloud Services
1 6 (17.14%) Amazon AWS
1 6 (17.14%) Microsoft Azure
2 3 (8.57%) AWS CloudFormation
3 2 (5.71%) SaaS
4 1 (2.86%) Amazon CloudWatch
4 1 (2.86%) GitHub
Communications & Networking
1 1 (2.86%) Skype
Database & Business Intelligence
1 15 (42.86%) MySQL
2 9 (25.71%) SQL Server
3 3 (8.57%) Big Data
4 2 (5.71%) MongoDB
4 2 (5.71%) NoSQL
4 2 (5.71%) PostgreSQL
5 1 (2.86%) Hadoop
5 1 (2.86%) SQL Server 2008
5 1 (2.86%) SQL Server 2014
5 1 (2.86%) SQL Server 2016
Development Applications
1 22 (62.86%) Selenium
2 19 (54.29%) WebDriver
3 13 (37.14%) Selenium IDE
4 7 (20.00%) Jenkins
5 6 (17.14%) TeamCity
6 4 (11.43%) Git (software)
7 3 (8.57%) JUnit
7 3 (8.57%) SonarQube
8 2 (5.71%) Maven
8 2 (5.71%) Subversion
8 2 (5.71%) Xcode
9 1 (2.86%) Ant
9 1 (2.86%) Apache Ivy
9 1 (2.86%) Bitbucket
9 1 (2.86%) Eclipse
9 1 (2.86%) Gradle
9 1 (2.86%) JIRA
General
1 13 (37.14%) Banking
1 13 (37.14%) Finance
2 7 (20.00%) Retail
3 1 (2.86%) Legal
3 1 (2.86%) Marketing
Job Titles
1 24 (68.57%) Developer
2 13 (37.14%) Agile Developer
2 13 (37.14%) MySQL Developer
2 13 (37.14%) PHP Developer
2 13 (37.14%) PHP MySQL Developer
3 6 (17.14%) Automation Engineer
3 6 (17.14%) Java Engineer
3 6 (17.14%) QA Automation Engineer
3 6 (17.14%) QA Engineer
3 6 (17.14%) Senior Automation Engineer
3 6 (17.14%) Senior Java Engineer
3 6 (17.14%) Senior QA Engineer
4 4 (11.43%) Senior Developer
5 3 (8.57%) C# Developer
5 3 (8.57%) Java Developer
6 2 (5.71%) .NET Developer
6 2 (5.71%) Agile Tester
6 2 (5.71%) C++ Developer
6 2 (5.71%) Junior Developer
6 2 (5.71%) Test Leader
Libraries, Frameworks & Software Standards
1 15 (42.86%) REST
2 14 (40.00%) CSS
2 14 (40.00%) HTML
3 13 (37.14%) CakePHP
3 13 (37.14%) CSS3
3 13 (37.14%) HTML5
3 13 (37.14%) Laravel
3 13 (37.14%) SOAP
4 6 (17.14%) .NET
5 4 (11.43%) ASP.NET
5 4 (11.43%) React
6 3 (8.57%) .NET Framework
6 3 (8.57%) AngularJS
6 3 (8.57%) Spring
7 2 (5.71%) ASP.NET MVC
7 2 (5.71%) Hibernate
7 2 (5.71%) OAuth
7 2 (5.71%) Qt
7 2 (5.71%) RESTful
7 2 (5.71%) XML
Miscellaneous
1 3 (8.57%) Greenfield Project
2 2 (5.71%) Fintech
3 1 (2.86%) Computer Science
Operating Systems
1 7 (20.00%) Linux
2 2 (5.71%) Apple iOS
2 2 (5.71%) Unix
2 2 (5.71%) Windows
3 1 (2.86%) Android
3 1 (2.86%) CentOS
3 1 (2.86%) Ubuntu
Processes & Methodologies
1 33 (94.29%) Agile Software Development
2 15 (42.86%) API Development
2 15 (42.86%) MVC
3 14 (40.00%) Software Engineering
3 14 (40.00%) Test Automation
4 13 (37.14%) Functional Testing
5 11 (31.43%) Scrum
6 9 (25.71%) BDD
7 8 (22.86%) SDLC
8 6 (17.14%) Kanban
9 5 (14.29%) Continuous Improvement
9 5 (14.29%) Mentoring
10 4 (11.43%) Continuous Integration
11 3 (8.57%) Build Automation
11 3 (8.57%) DevOps
11 3 (8.57%) High Availability
12 2 (5.71%) API Design
12 2 (5.71%) Coaching
12 2 (5.71%) Continuous Delivery
12 2 (5.71%) iOS Development
Programming Languages
1 15 (42.86%) JavaScript
1 15 (42.86%) PHP
2 11 (31.43%) Java
3 10 (28.57%) SQL
4 5 (14.29%) C#
5 2 (5.71%) Apple Swift
5 2 (5.71%) C++
5 2 (5.71%) Objective-C
5 2 (5.71%) Perl
5 2 (5.71%) Python
6 1 (2.86%) Bash Shell
6 1 (2.86%) Groovy
6 1 (2.86%) Scala
6 1 (2.86%) T-SQL
Qualifications
1 3 (8.57%) Degree
2 2 (5.71%) ISEB
2 2 (5.71%) ISTQB
3 1 (2.86%) Computer Science Degree
Quality Assurance & Compliance
1 10 (28.57%) QA
Systems Management
1 3 (8.57%) Opscode Chef
1 3 (8.57%) Puppet
2 1 (2.86%) Simian Army
2 1 (2.86%) ZABBIX
Vendors
1 13 (37.14%) Zend
2 2 (5.71%) Microsoft
3 1 (2.86%) Capita