Period
to 21 June 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 21 June 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Merseyside > Liverpool
6 months to
21 Jun 2018
Same period 2017 Same period 2016
Rank 53 36 33
Rank change year-on-year -17 -3 +8
Permanent jobs citing TDD 21 45 46
As % of all permanent IT jobs advertised in Liverpool 3.10% 5.75% 5.82%
As % of the Processes & Methodologies category 3.43% 6.28% 6.89%
Number of salaries quoted 17 50 68
Liverpool median annual salary £42,500 £42,500 £40,000
Median salary % change year-on-year - +6.25% -11.11%
10th Percentile £26,250 £32,500 £30,000
90th Percentile £56,450 £71,250 £92,500
Merseyside median annual salary £47,500 £45,000 £40,000
% change year-on-year +5.56% +12.50% -

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 612 717 668
As % of all permanent IT jobs advertised in Liverpool 90.40% 91.57% 84.56%
Number of salaries quoted 477 522 529
Liverpool median annual salary £41,500 £39,250 £40,000
Median salary % change year-on-year +5.73% -1.88% -
10th Percentile £26,250 £25,750 £27,500
90th Percentile £64,250 £66,125 £60,000
Merseyside median annual salary £40,888 £40,000 £40,000
% change year-on-year +2.22% - -

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 21 June 2018.

Salary histogram for TDD in Liverpool

For the 6 months to 21 June 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 19 (90.48%) Agile Software Development
2 14 (66.67%) Scrum
3 13 (61.90%) Java
3 13 (61.90%) Test Automation
4 11 (52.38%) SQL
5 9 (42.86%) Linux
5 9 (42.86%) React
6 8 (38.10%) Front End Development
6 8 (38.10%) Spring Boot
6 8 (38.10%) NoSQL
6 8 (38.10%) Continuous Improvement
6 8 (38.10%) Kafka
6 8 (38.10%) AngularJS
6 8 (38.10%) Build Automation
6 8 (38.10%) Mentoring
6 8 (38.10%) SQL Server
6 8 (38.10%) Unix
6 8 (38.10%) Spring
7 7 (33.33%) Retail
7 7 (33.33%) .NET
7 7 (33.33%) C#
7 7 (33.33%) BDD
8 6 (28.57%) Coaching
8 6 (28.57%) MongoDB
8 6 (28.57%) SDLC
8 6 (28.57%) Deployment Automation
9 5 (23.81%) Jenkins
9 5 (23.81%) ASP.NET
9 5 (23.81%) Microsoft
9 5 (23.81%) MVC

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 4 (19.05%) Elasticsearch
Business Applications
1 1 (4.76%) Dynamics CRM
Cloud Services
1 1 (4.76%) Amazon AWS
1 1 (4.76%) Microsoft Azure
Database & Business Intelligence
1 8 (38.10%) NoSQL
1 8 (38.10%) SQL Server
2 6 (28.57%) MongoDB
3 3 (14.29%) SQL Server 2016
4 1 (4.76%) MySQL
4 1 (4.76%) PostgreSQL
4 1 (4.76%) SQL Server 2008
4 1 (4.76%) SQL Server 2014
Development Applications
1 5 (23.81%) Jenkins
2 4 (19.05%) Jasmine
2 4 (19.05%) Selenium
2 4 (19.05%) TeamCity
2 4 (19.05%) WebDriver
3 2 (9.52%) Git (software)
4 1 (4.76%) Octopus Deploy
4 1 (4.76%) SonarQube
4 1 (4.76%) Subversion
4 1 (4.76%) Team Foundation Server
General
1 7 (33.33%) Retail
2 4 (19.05%) Manufacturing
3 1 (4.76%) Legal
Job Titles
1 13 (61.90%) Developer
2 4 (19.05%) Automation Engineer
2 4 (19.05%) C# Developer
2 4 (19.05%) Java Developer
2 4 (19.05%) Java Engineer
2 4 (19.05%) QA Automation Engineer
2 4 (19.05%) QA Engineer
2 4 (19.05%) Senior Automation Engineer
2 4 (19.05%) Senior Java Engineer
2 4 (19.05%) Senior QA Engineer
3 3 (14.29%) .NET Developer
3 3 (14.29%) ASP.NET Developer
3 3 (14.29%) ASP.NET MVC Developer
3 3 (14.29%) C# .NET Developer
3 3 (14.29%) C# ASP.NET Developer
3 3 (14.29%) Full Stack Developer
4 2 (9.52%) Technical Leader
5 1 (4.76%) Senior C# Developer
5 1 (4.76%) Senior C# Software Engineer
5 1 (4.76%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 9 (42.86%) React
2 8 (38.10%) AngularJS
2 8 (38.10%) Kafka
2 8 (38.10%) Spring
2 8 (38.10%) Spring Boot
3 7 (33.33%) .NET
4 5 (23.81%) ASP.NET
5 4 (19.05%) ASP.NET MVC
5 4 (19.05%) ASP.NET Web API
5 4 (19.05%) Elastic Stack
5 4 (19.05%) Jest
6 3 (14.29%) ASP.NET MVC 5
6 3 (14.29%) RESTful
7 2 (9.52%) .NET Framework
7 2 (9.52%) RabbitMQ
8 1 (4.76%) Entity Framework
8 1 (4.76%) Middleware
8 1 (4.76%) Qt
8 1 (4.76%) WPF
8 1 (4.76%) XML
Miscellaneous
1 4 (19.05%) Life Science
2 3 (14.29%) Greenfield Project
3 1 (4.76%) Client/Server
3 1 (4.76%) Fintech
Operating Systems
1 9 (42.86%) Linux
2 8 (38.10%) Unix
3 1 (4.76%) Android
3 1 (4.76%) Windows
Processes & Methodologies
1 19 (90.48%) Agile Software Development
2 14 (66.67%) Scrum
3 13 (61.90%) Test Automation
4 8 (38.10%) Build Automation
4 8 (38.10%) Continuous Improvement
4 8 (38.10%) Front End Development
4 8 (38.10%) Mentoring
5 7 (33.33%) BDD
6 6 (28.57%) Coaching
6 6 (28.57%) Deployment Automation
6 6 (28.57%) SDLC
7 5 (23.81%) Kanban
7 5 (23.81%) MVC
8 4 (19.05%) Continuous Integration
8 4 (19.05%) DevOps
8 4 (19.05%) Fault Analysis
8 4 (19.05%) Logistics
8 4 (19.05%) Problem-Solving
9 3 (14.29%) Dependency Injection
9 3 (14.29%) Web Application Development
Programming Languages
1 13 (61.90%) Java
2 11 (52.38%) SQL
3 7 (33.33%) C#
4 4 (19.05%) ES6
4 4 (19.05%) JavaScript
4 4 (19.05%) Shell Script
5 1 (4.76%) C++
5 1 (4.76%) Perl
5 1 (4.76%) PHP
5 1 (4.76%) Python
5 1 (4.76%) T-SQL
Quality Assurance & Compliance
1 4 (19.05%) QA
Systems Management
1 4 (19.05%) Ansible
1 4 (19.05%) Kibana
1 4 (19.05%) logstash
Vendors
1 5 (23.81%) Microsoft
2 1 (4.76%) Xamarin