Period
to 20 October 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 20 October 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Merseyside > Liverpool
6 months to
20 Oct 2018
Same period 2017 Same period 2016
Rank 35 22 51
Rank change year-on-year -13 +29 -20
Permanent jobs citing TDD 29 64 46
As % of all permanent IT jobs advertised in Liverpool 4.86% 8.59% 4.55%
As % of the Processes & Methodologies category 5.35% 9.30% 5.08%
Number of salaries quoted 27 60 34
Liverpool median annual salary £45,000 £50,000 £40,000
Median salary % change year-on-year -10.00% +25.00% -
10th Percentile £32,000 £32,375 £34,125
90th Percentile £58,000 £62,850 £45,000
Merseyside median annual salary £40,000 £45,000 £40,000
% change year-on-year -11.11% +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 542 688 906
As % of all permanent IT jobs advertised in Liverpool 90.79% 92.35% 89.70%
Number of salaries quoted 408 500 590
Liverpool median annual salary £42,448 £40,500 £40,000
Median salary % change year-on-year +4.81% +1.25% -
10th Percentile £26,250 £27,500 £26,250
90th Percentile £61,250 £67,500 £57,500
Merseyside median annual salary £40,349 £40,000 £40,000
% change year-on-year +0.87% - -

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 20 October 2018.

Salary histogram for TDD in Liverpool

For the 6 months to 20 October 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 26 (89.66%) Agile Software Development
2 17 (58.62%) .NET
3 16 (55.17%) C#
4 15 (51.72%) BDD
5 13 (44.83%) Continuous Integration
6 12 (41.38%) RESTful
6 12 (41.38%) SQL
6 12 (41.38%) SQL Server
6 12 (41.38%) Microsoft
7 11 (37.93%) SOAP
7 11 (37.93%) Web Services
8 10 (34.48%) Windows
8 10 (34.48%) T-SQL
8 10 (34.48%) .NET Framework
8 10 (34.48%) WCF
9 9 (31.03%) Team Foundation Server
9 9 (31.03%) Visual Studio
10 8 (27.59%) MVC
10 8 (27.59%) Unit Testing
10 8 (27.59%) Git (software)
10 8 (27.59%) Acceptance Criteria
11 7 (24.14%) Microservices
11 7 (24.14%) Pair Programming
11 7 (24.14%) PMI
11 7 (24.14%) PMI Certification
12 6 (20.69%) JavaScript
12 6 (20.69%) Spring
12 6 (20.69%) Scrum
13 5 (17.24%) Software Engineering
13 5 (17.24%) Oracle

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 (3.45%) Elasticsearch
Business Applications
1 1 (3.45%) Dynamics CRM
Cloud Services
1 2 (6.90%) Amazon AWS
1 2 (6.90%) Microsoft Azure
2 1 (3.45%) npm
2 1 (3.45%) NuGet
2 1 (3.45%) SaaS
Communications & Networking
1 3 (10.34%) Internet
Database & Business Intelligence
1 12 (41.38%) SQL Server
2 1 (3.45%) Big Data
2 1 (3.45%) MongoDB
2 1 (3.45%) SQL Server 2008
2 1 (3.45%) SQL Server 2016
Development Applications
1 9 (31.03%) Team Foundation Server
1 9 (31.03%) Visual Studio
2 8 (27.59%) Git (software)
3 5 (17.24%) Mockito
4 2 (6.90%) Octopus Deploy
4 2 (6.90%) TeamCity
5 1 (3.45%) gulp
5 1 (3.45%) Jasmine
5 1 (3.45%) Jenkins
5 1 (3.45%) JIRA
5 1 (3.45%) jspm
5 1 (3.45%) PHPUnit
5 1 (3.45%) SonarQube
5 1 (3.45%) Subversion
5 1 (3.45%) Visual Studio Code
General
1 1 (3.45%) Law
Job Titles
1 23 (79.31%) Developer
2 9 (31.03%) .NET Developer
2 9 (31.03%) C# Developer
3 8 (27.59%) C# .NET Developer
3 8 (27.59%) Senior Developer
4 5 (17.24%) Java Developer
4 5 (17.24%) Senior Java Developer
5 4 (13.79%) Software Engineer
6 3 (10.34%) Front End Developer (Client-Side Developer)
7 2 (6.90%) .NET Software Engineer
7 2 (6.90%) C# Software Engineer
7 2 (6.90%) Senior C# Software Engineer
7 2 (6.90%) Senior Software Engineer
7 2 (6.90%) Software Developer
8 1 (3.45%) Business Analyst
8 1 (3.45%) Lead Developer
8 1 (3.45%) PHP Developer
8 1 (3.45%) Senior Applications Developer
8 1 (3.45%) Senior Software Developer
8 1 (3.45%) Tester
Libraries, Frameworks & Software Standards
1 17 (58.62%) .NET
2 12 (41.38%) RESTful
3 11 (37.93%) SOAP
3 11 (37.93%) Web Services
4 10 (34.48%) .NET Framework
4 10 (34.48%) WCF
5 6 (20.69%) Spring
6 5 (17.24%) REST
7 4 (13.79%) AngularJS
8 3 (10.34%) .NET Core
8 3 (10.34%) ASP.NET
8 3 (10.34%) ASP.NET Web API
8 3 (10.34%) Backbone.js
8 3 (10.34%) CSS
8 3 (10.34%) Ember.js
8 3 (10.34%) Entity Framework
8 3 (10.34%) HTML
8 3 (10.34%) HTML5
8 3 (10.34%) jQuery
8 3 (10.34%) React
Miscellaneous
1 7 (24.14%) PMI
2 5 (17.24%) iPad
3 2 (6.90%) Analytical Skills
4 1 (3.45%) Client/Server
4 1 (3.45%) EPoS
4 1 (3.45%) Fintech
4 1 (3.45%) Mobile App
4 1 (3.45%) N-Tier
Operating Systems
1 10 (34.48%) Windows
2 1 (3.45%) Android
2 1 (3.45%) Linux
2 1 (3.45%) Ubuntu
Processes & Methodologies
1 26 (89.66%) Agile Software Development
2 15 (51.72%) BDD
3 13 (44.83%) Continuous Integration
4 8 (27.59%) Acceptance Criteria
4 8 (27.59%) MVC
4 8 (27.59%) Unit Testing
5 7 (24.14%) Microservices
5 7 (24.14%) Pair Programming
6 6 (20.69%) Scrum
7 5 (17.24%) B2B
7 5 (17.24%) B2C
7 5 (17.24%) E-Commerce
7 5 (17.24%) Software Engineering
8 4 (13.79%) Software Architecture
9 3 (10.34%) DevOps
9 3 (10.34%) Front End Development
9 3 (10.34%) Kanban
9 3 (10.34%) Prototyping
9 3 (10.34%) SOLID
9 3 (10.34%) Web Development
Programming Languages
1 16 (55.17%) C#
2 12 (41.38%) SQL
3 10 (34.48%) T-SQL
4 6 (20.69%) JavaScript
5 5 (17.24%) Groovy
5 5 (17.24%) Java
5 5 (17.24%) Java 8
6 1 (3.45%) PHP
6 1 (3.45%) PowerShell
6 1 (3.45%) TypeScript
Qualifications
1 7 (24.14%) PMI Certification
2 3 (10.34%) Degree
Quality Assurance & Compliance
1 2 (6.90%) GDPR
2 1 (3.45%) QA
Systems Management
1 1 (3.45%) Systems Management Server (SMS)
Vendors
1 12 (41.38%) Microsoft
2 5 (17.24%) Oracle
3 4 (13.79%) Xamarin