Period
to 28 February 2020

The following table provides summary statistics for permanent job vacancies advertised in Chester 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 28 February 2020 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Chester
6 months to
28 Feb 2020
Same period 2019 Same period 2018
Rank 38 13 21
Rank change year-on-year -25 +8 -9
Permanent jobs citing TDD 15 24 42
As % of all permanent IT jobs advertised in Chester 5.38% 13.64% 10.14%
As % of the Processes & Methodologies category 5.77% 14.63% 10.99%
Number of salaries quoted 11 27 41
Chester median annual salary £37,500 £45,000 £50,000
Median salary % change year-on-year -16.67% -10.00% +17.65%
10th Percentile £26,250 £32,500 £38,750
90th Percentile £43,750 £69,750 £55,000
Cheshire median annual salary £45,000 £52,500 £47,500
% change year-on-year -14.29% +10.53% +11.76%

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 Chester with a requirement for process or methodology skills.

All Process and Methodology Skills
Chester
Permanent vacancies with a requirement for process or methodology skills 260 164 382
As % of all permanent IT jobs advertised in Chester 93.19% 93.18% 92.27%
Number of salaries quoted 217 147 343
Chester median annual salary £40,500 £41,500 £42,500
Median salary % change year-on-year -2.41% -2.35% +13.33%
10th Percentile £30,000 £26,250 £26,000
90th Percentile £67,500 £62,500 £60,000
Cheshire median annual salary £44,000 £45,000 £45,000
% change year-on-year -2.22% - +12.50%

TDD
Job Vacancy Trend in Chester

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

Job vacancy trend for TDD in Chester

TDD
Salary Trend in Chester

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

Salary trend for TDD in Chester

TDD
Salary Histogram in Chester

The salary distribution of IT jobs citing TDD in Chester over the 6 months to 28 February 2020.

Salary histogram for TDD in Chester

For the 6 months to 28 February 2020, 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 Chester region with a requirement for TDD.

1 13 (86.67%) C#
2 12 (80.00%) Agile Software Development
3 10 (66.67%) SQL
4 9 (60.00%) Continuous Integration
4 9 (60.00%) Scrum
4 9 (60.00%) BDD
5 8 (53.33%) Jenkins
5 8 (53.33%) Java
5 8 (53.33%) JavaScript
5 8 (53.33%) Web Services
6 7 (46.67%) XML
6 7 (46.67%) SOAP
6 7 (46.67%) Software Engineering
6 7 (46.67%) QA
6 7 (46.67%) REST
6 7 (46.67%) SpecFlow
6 7 (46.67%) Test Automation
7 6 (40.00%) Visual Studio Team System
7 6 (40.00%) Hudson
7 6 (40.00%) Gherkin
7 6 (40.00%) HTML
8 5 (33.33%) Shell Script
8 5 (33.33%) .NET
8 5 (33.33%) JIRA
8 5 (33.33%) DevOps
8 5 (33.33%) Microservices
8 5 (33.33%) Acceptance Criteria
9 4 (26.67%) Commercial Awareness
9 4 (26.67%) Self-Motivation
9 4 (26.67%) .NET Core

TDD
Co-occurring IT Skills in Chester 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:

Cloud Services
1 2 (13.33%) AWS
1 2 (13.33%) Kong
2 1 (6.67%) Azure
2 1 (6.67%) Azure Functions
2 1 (6.67%) GitHub
2 1 (6.67%) PaaS
2 1 (6.67%) Serverless
Communications & Networking
1 1 (6.67%) Ethernet
1 1 (6.67%) VLAN
Database & Business Intelligence
1 3 (20.00%) NoSQL
2 2 (13.33%) MongoDB
2 2 (13.33%) SQL Server
3 1 (6.67%) Cosmos DB
3 1 (6.67%) MySQL
Development Applications
1 8 (53.33%) Jenkins
2 7 (46.67%) SpecFlow
3 6 (40.00%) Hudson
3 6 (40.00%) Visual Studio Team System
4 5 (33.33%) JIRA
5 4 (26.67%) Git (software)
6 2 (13.33%) Eclipse
6 2 (13.33%) IntelliJ
7 1 (6.67%) Appium
7 1 (6.67%) Bitbucket
7 1 (6.67%) Cucumber
7 1 (6.67%) GitLab
7 1 (6.67%) Postman
7 1 (6.67%) Selenium
7 1 (6.67%) SoapUI
7 1 (6.67%) Team Foundation Server
7 1 (6.67%) Visual Studio
7 1 (6.67%) WebDriver
General
1 2 (13.33%) Finance
2 1 (6.67%) Marketing
2 1 (6.67%) Retail
Job Titles
1 7 (46.67%) QA Engineer
2 6 (40.00%) Developer
3 4 (26.67%) Software QA Engineer
4 2 (13.33%) Java Developer
4 2 (13.33%) Senior QA Engineer
4 2 (13.33%) Software Engineer
5 1 (6.67%) .NET Developer
5 1 (6.67%) C# Developer
5 1 (6.67%) Embedded Engineer
5 1 (6.67%) Embedded Software Engineer
5 1 (6.67%) Junior
5 1 (6.67%) Junior Developer
5 1 (6.67%) Junior Software Developer
5 1 (6.67%) PHP Developer
5 1 (6.67%) Senior Embedded Software Engineer
5 1 (6.67%) Senior Software Engineer
5 1 (6.67%) Software Developer
Libraries, Frameworks & Software Standards
1 8 (53.33%) Web Services
2 7 (46.67%) REST
2 7 (46.67%) SOAP
2 7 (46.67%) XML
3 6 (40.00%) Gherkin
3 6 (40.00%) HTML
4 5 (33.33%) .NET
5 4 (26.67%) .NET Core
5 4 (26.67%) Node.js
5 4 (26.67%) RESTful
6 2 (13.33%) Dropwizard
6 2 (13.33%) jQuery
6 2 (13.33%) React
6 2 (13.33%) Redux
6 2 (13.33%) Spring
6 2 (13.33%) Spring Boot
7 1 (6.67%) .NET Framework
7 1 (6.67%) JSON
7 1 (6.67%) LAMP
7 1 (6.67%) WCF
Miscellaneous
1 4 (26.67%) PMI
1 4 (26.67%) Self-Motivation
2 3 (20.00%) Mobile App
3 1 (6.67%) Marketing Technology
Operating Systems
1 1 (6.67%) Embedded Linux
1 1 (6.67%) Linux
Processes & Methodologies
1 12 (80.00%) Agile Software Development
2 9 (60.00%) BDD
2 9 (60.00%) Continuous Integration
2 9 (60.00%) Scrum
3 7 (46.67%) Software Engineering
3 7 (46.67%) Test Automation
4 5 (33.33%) Acceptance Criteria
4 5 (33.33%) DevOps
4 5 (33.33%) Microservices
5 4 (26.67%) Commercial Awareness
5 4 (26.67%) Defect Management
5 4 (26.67%) Defect Tracking
5 4 (26.67%) SDLC
6 3 (20.00%) OO
6 3 (20.00%) SOLID
7 2 (13.33%) Automated Trading
7 2 (13.33%) Domain-Driven Design
7 2 (13.33%) Mentoring
7 2 (13.33%) Personalization
7 2 (13.33%) SOA
Programming Languages
1 13 (86.67%) C#
2 10 (66.67%) SQL
3 8 (53.33%) Java
3 8 (53.33%) JavaScript
4 5 (33.33%) Shell Script
5 1 (6.67%) C
5 1 (6.67%) PHP
5 1 (6.67%) T-SQL
Qualifications
1 4 (26.67%) PMI Certification
Quality Assurance & Compliance
1 7 (46.67%) QA
2 2 (13.33%) Data Quality
3 1 (6.67%) GDPR
3 1 (6.67%) PCI DSS
System Software
1 1 (6.67%) Docker
Vendors
1 1 (6.67%) Microsoft