Period
to 24 June 2019

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 24 June 2019 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Chester
6 months to
24 Jun 2019
Same period 2018 Same period 2017
Rank 37 23 27
Rank change year-on-year -14 +4 +4
Permanent jobs citing TDD 3 31 20
As % of all permanent IT jobs advertised in Chester 1.46% 9.57% 6.97%
As % of the Processes & Methodologies category 1.61% 10.58% 8.06%
Number of salaries quoted 3 30 19
Chester median annual salary £75,000 £50,000 £47,500
Median salary % change year-on-year +50.00% +5.26% +5.56%
10th Percentile £39,500 £38,625 £25,750
90th Percentile £82,500 £60,500 £51,250
Cheshire median annual salary £55,000 £50,000 £42,500
% change year-on-year +10.00% +17.65% +6.25%

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 186 293 248
As % of all permanent IT jobs advertised in Chester 90.73% 90.43% 86.41%
Number of salaries quoted 155 268 220
Chester median annual salary £40,000 £42,500 £37,500
Median salary % change year-on-year -5.88% +13.33% +5.63%
10th Percentile £25,000 £26,925 £26,750
90th Percentile £56,250 £60,000 £53,750
Cheshire median annual salary £45,000 £45,000 £40,000
% change year-on-year - +12.50% +6.67%

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 24 June 2019.

Salary histogram for TDD in Chester

For the 6 months to 24 June 2019, 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 3 (100.00%) SQL
1 3 (100.00%) Web Services
1 3 (100.00%) Agile Software Development
2 2 (66.67%) Banking
2 2 (66.67%) Spring
2 2 (66.67%) Maven
2 2 (66.67%) MVC
2 2 (66.67%) Finance
2 2 (66.67%) MongoDB
2 2 (66.67%) NoSQL
2 2 (66.67%) REST
2 2 (66.67%) Gradle
2 2 (66.67%) Elasticsearch
2 2 (66.67%) Microservices
2 2 (66.67%) API Design
2 2 (66.67%) Unix
2 2 (66.67%) Tomcat
2 2 (66.67%) SOA
2 2 (66.67%) HTTP
2 2 (66.67%) Java
2 2 (66.67%) J2EE
2 2 (66.67%) Jetty
2 2 (66.67%) Multithreading
2 2 (66.67%) Git (software)
2 2 (66.67%) JIRA
2 2 (66.67%) Problem-Solving
3 1 (33.33%) WCF
3 1 (33.33%) Team Foundation Server
3 1 (33.33%) RESTful
3 1 (33.33%) BDD

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:

Application Platforms
1 2 (66.67%) Elasticsearch
1 2 (66.67%) Jetty
1 2 (66.67%) Tomcat
Communications & Networking
1 2 (66.67%) HTTP
Database & Business Intelligence
1 2 (66.67%) MongoDB
1 2 (66.67%) NoSQL
2 1 (33.33%) SQL Server
Development Applications
1 2 (66.67%) Git (software)
1 2 (66.67%) Gradle
1 2 (66.67%) JIRA
1 2 (66.67%) Maven
2 1 (33.33%) Team Foundation Server
2 1 (33.33%) Visual Studio
General
1 2 (66.67%) Banking
1 2 (66.67%) Finance
Job Titles
1 2 (66.67%) Architect
1 2 (66.67%) Cloud Architect
1 2 (66.67%) Java Architect
1 2 (66.67%) Web Architect
2 1 (33.33%) .NET Developer
2 1 (33.33%) C# .NET Developer
2 1 (33.33%) C# Developer
2 1 (33.33%) Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) Web Services
2 2 (66.67%) J2EE
2 2 (66.67%) REST
2 2 (66.67%) Spring
3 1 (33.33%) .NET
3 1 (33.33%) .NET Framework
3 1 (33.33%) RESTful
3 1 (33.33%) SOAP
3 1 (33.33%) WCF
Miscellaneous
1 1 (33.33%) PMI
Operating Systems
1 2 (66.67%) Unix
2 1 (33.33%) Windows
Processes & Methodologies
1 3 (100.00%) Agile Software Development
2 2 (66.67%) API Design
2 2 (66.67%) Microservices
2 2 (66.67%) Multithreading
2 2 (66.67%) MVC
2 2 (66.67%) Problem-Solving
2 2 (66.67%) SOA
3 1 (33.33%) Acceptance Criteria
3 1 (33.33%) BDD
Programming Languages
1 3 (100.00%) SQL
2 2 (66.67%) Java
3 1 (33.33%) C#
3 1 (33.33%) T-SQL
Qualifications
1 1 (33.33%) PMI Certification
Vendors
1 1 (33.33%) Microsoft