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

Test-Driven Development (TDD)
Merseyside > Liverpool
6 months to
21 Aug 2018
Same period 2017 Same period 2016
Rank 44 34 40
Rank change year-on-year -10 +6 -8
Permanent jobs citing TDD 22 52 38
As % of all permanent IT jobs advertised in Liverpool 3.38% 6.70% 4.73%
As % of the Processes & Methodologies category 3.73% 7.18% 5.43%
Number of salaries quoted 19 51 46
Liverpool median annual salary £42,500 £45,000 £40,000
Median salary % change year-on-year -5.56% +12.50% -5.88%
10th Percentile £26,250 £32,500 £30,000
90th Percentile £56,100 £62,500 £68,750
Merseyside median annual salary £41,250 £45,000 £40,000
% change year-on-year -8.33% +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 590 724 700
As % of all permanent IT jobs advertised in Liverpool 90.77% 93.30% 87.06%
Number of salaries quoted 457 518 516
Liverpool median annual salary £42,500 £40,000 £40,000
Median salary % change year-on-year +6.25% - -
10th Percentile £26,250 £27,183 £26,250
90th Percentile £64,250 £67,500 £60,000
Merseyside median annual salary £41,000 £40,000 £40,000
% change year-on-year +2.50% - -

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 August 2018.

Salary histogram for TDD in Liverpool

For the 6 months to 21 August 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 (86.36%) Agile Software Development
2 12 (54.55%) .NET
3 11 (50.00%) SQL
3 11 (50.00%) C#
4 9 (40.91%) Continuous Integration
5 8 (36.36%) Microsoft
5 8 (36.36%) Scrum
5 8 (36.36%) MVC
6 7 (31.82%) Spring
6 7 (31.82%) JavaScript
6 7 (31.82%) SQL Server
6 7 (31.82%) Linux
6 7 (31.82%) Test Automation
6 7 (31.82%) AngularJS
6 7 (31.82%) Mentoring
6 7 (31.82%) React
6 7 (31.82%) Front End Development
7 6 (27.27%) Spring Boot
7 6 (27.27%) Problem-Solving
7 6 (27.27%) ASP.NET Web API
7 6 (27.27%) Kafka
7 6 (27.27%) Build Automation
7 6 (27.27%) NoSQL
7 6 (27.27%) Continuous Improvement
7 6 (27.27%) RESTful
7 6 (27.27%) Git (software)
7 6 (27.27%) Unix
7 6 (27.27%) Java
8 5 (22.73%) Software Engineering
8 5 (22.73%) ASP.NET

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 5 (22.73%) Elasticsearch
Business Applications
1 1 (4.55%) Dynamics CRM
Cloud Services
1 2 (9.09%) Amazon AWS
1 2 (9.09%) Microsoft Azure
2 1 (4.55%) npm
2 1 (4.55%) NuGet
2 1 (4.55%) SaaS
Communications & Networking
1 1 (4.55%) Internet
Database & Business Intelligence
1 7 (31.82%) SQL Server
2 6 (27.27%) NoSQL
3 5 (22.73%) MongoDB
4 4 (18.18%) SQL Server 2016
5 2 (9.09%) SQL Server 2008
6 1 (4.55%) Big Data
6 1 (4.55%) SQL Server 2014
Development Applications
1 6 (27.27%) Git (software)
2 5 (22.73%) Jasmine
3 2 (9.09%) Octopus Deploy
3 2 (9.09%) Team Foundation Server
3 2 (9.09%) TeamCity
3 2 (9.09%) Visual Studio
4 1 (4.55%) gulp
4 1 (4.55%) Jenkins
4 1 (4.55%) JIRA
4 1 (4.55%) jspm
4 1 (4.55%) SonarQube
4 1 (4.55%) Subversion
4 1 (4.55%) Visual Studio Code
General
1 4 (18.18%) Manufacturing
2 3 (13.64%) Retail
3 1 (4.55%) Law
3 1 (4.55%) Legal
Job Titles
1 15 (68.18%) Developer
2 6 (27.27%) C# Developer
3 5 (22.73%) .NET Developer
3 5 (22.73%) C# .NET Developer
4 3 (13.64%) ASP.NET Developer
4 3 (13.64%) ASP.NET MVC Developer
4 3 (13.64%) C# ASP.NET Developer
4 3 (13.64%) Software Engineer
5 2 (9.09%) .NET Software Engineer
5 2 (9.09%) Full Stack Developer
5 2 (9.09%) Java Developer
5 2 (9.09%) Senior Developer
5 2 (9.09%) Software Developer
5 2 (9.09%) Technical Leader
6 1 (4.55%) Agile Developer
6 1 (4.55%) Head of Delivery
6 1 (4.55%) Microsoft Developer
6 1 (4.55%) Senior C# Software Engineer
6 1 (4.55%) Senior Mobile Developer
6 1 (4.55%) Senior Software Developer
Libraries, Frameworks & Software Standards
1 12 (54.55%) .NET
2 7 (31.82%) AngularJS
2 7 (31.82%) React
2 7 (31.82%) Spring
3 6 (27.27%) ASP.NET Web API
3 6 (27.27%) Kafka
3 6 (27.27%) RESTful
3 6 (27.27%) Spring Boot
4 5 (22.73%) ASP.NET
5 4 (18.18%) .NET Framework
5 4 (18.18%) ASP.NET MVC
5 4 (18.18%) Elastic Stack
5 4 (18.18%) Jest
6 3 (13.64%) .NET Core
6 3 (13.64%) ASP.NET MVC 5
6 3 (13.64%) RabbitMQ
6 3 (13.64%) SOAP
6 3 (13.64%) Web Services
7 2 (9.09%) CSS
7 2 (9.09%) WCF
Miscellaneous
1 4 (18.18%) Life Science
2 3 (13.64%) Greenfield Project
3 2 (9.09%) Analytical Skills
4 1 (4.55%) Client/Server
4 1 (4.55%) EPoS
4 1 (4.55%) Fintech
4 1 (4.55%) Mobile App
4 1 (4.55%) N-Tier
4 1 (4.55%) PMI
Operating Systems
1 7 (31.82%) Linux
2 6 (27.27%) Unix
3 2 (9.09%) Windows
4 1 (4.55%) Android
4 1 (4.55%) Ubuntu
Processes & Methodologies
1 19 (86.36%) Agile Software Development
2 9 (40.91%) Continuous Integration
3 8 (36.36%) MVC
3 8 (36.36%) Scrum
4 7 (31.82%) Front End Development
4 7 (31.82%) Mentoring
4 7 (31.82%) Test Automation
5 6 (27.27%) Build Automation
5 6 (27.27%) Continuous Improvement
5 6 (27.27%) Problem-Solving
6 5 (22.73%) BDD
6 5 (22.73%) DevOps
6 5 (22.73%) Software Engineering
7 4 (18.18%) Coaching
7 4 (18.18%) Deployment Automation
7 4 (18.18%) Fault Analysis
7 4 (18.18%) OO
8 3 (13.64%) Continuous Delivery
8 3 (13.64%) SOLID
8 3 (13.64%) Web Application Development
Programming Languages
1 11 (50.00%) C#
1 11 (50.00%) SQL
2 7 (31.82%) JavaScript
3 6 (27.27%) Java
4 4 (18.18%) ES6
4 4 (18.18%) Shell Script
5 3 (13.64%) T-SQL
6 1 (4.55%) PowerShell
6 1 (4.55%) TypeScript
Qualifications
1 1 (4.55%) Degree
1 1 (4.55%) PMI Certification
Quality Assurance & Compliance
1 1 (4.55%) GDPR
1 1 (4.55%) QA
Systems Management
1 4 (18.18%) Ansible
1 4 (18.18%) Kibana
1 4 (18.18%) logstash
2 1 (4.55%) Systems Management Server (SMS)
Vendors
1 8 (36.36%) Microsoft
2 4 (18.18%) Xamarin