Period
to 23 May 2018

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 23 May 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Chester
6 months to
23 May 2018
Same period 2017 Same period 2016
Rank 22 23 22
Rank change year-on-year +1 -1 +12
Permanent jobs citing TDD 34 21 26
As % of all permanent IT jobs advertised in Chester 11.11% 7.09% 8.36%
As % of the Processes & Methodologies category 12.23% 8.14% 9.63%
Number of salaries quoted 33 20 26
Chester median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% +12.50%
10th Percentile £38,750 £26,000 £33,125
90th Percentile £55,000 £51,250 £52,500
Cheshire median annual salary £45,000 £42,500 £40,000
% change year-on-year +5.88% +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 278 258 270
As % of all permanent IT jobs advertised in Chester 90.85% 87.16% 86.82%
Number of salaries quoted 250 212 241
Chester median annual salary £42,500 £38,000 £35,000
Median salary % change year-on-year +11.84% +8.57% -12.50%
10th Percentile £27,500 £26,250 £25,000
90th Percentile £60,000 £56,000 £52,500
Cheshire median annual salary £45,000 £40,000 £37,500
% change year-on-year +12.50% +6.67% -6.25%

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 23 May 2018.

Salary histogram for TDD in Chester

For the 6 months to 23 May 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 Chester region with a requirement for TDD.

1 31 (91.18%) Agile Software Development
2 26 (76.47%) MVC
2 26 (76.47%) JavaScript
2 26 (76.47%) .NET
3 25 (73.53%) C#
3 25 (73.53%) SQL Server
4 22 (64.71%) Twitter Bootstrap
5 21 (61.76%) AngularJS
6 19 (55.88%) ASP.NET
6 19 (55.88%) RESTful
7 18 (52.94%) .NET Framework
7 18 (52.94%) ASP.NET MVC
7 18 (52.94%) BDD
8 17 (50.00%) SQL
9 16 (47.06%) Git (software)
9 16 (47.06%) ASP.NET MVC 5
10 14 (41.18%) HTML
11 13 (38.24%) Games
11 13 (38.24%) Entity Framework
11 13 (38.24%) Node.js
11 13 (38.24%) NoSQL
11 13 (38.24%) KnockoutJS
12 12 (35.29%) Web Application Development
12 12 (35.29%) Code First Entity Framework
12 12 (35.29%) ASP.NET Web API
12 12 (35.29%) SQL Server 2016
12 12 (35.29%) Scrum
12 12 (35.29%) Ruby
12 12 (35.29%) WCF
13 11 (32.35%) CSS

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 1 (2.94%) Apache
1 1 (2.94%) Apache Spark
1 1 (2.94%) Elasticsearch
Cloud Services
1 4 (11.76%) Amazon AWS
1 4 (11.76%) Microsoft Azure
Database & Business Intelligence
1 25 (73.53%) SQL Server
2 13 (38.24%) NoSQL
3 12 (35.29%) SQL Server 2016
4 4 (11.76%) MySQL
5 2 (5.88%) MongoDB
6 1 (2.94%) Big Data
6 1 (2.94%) Flink
6 1 (2.94%) Hadoop
Development Applications
1 16 (47.06%) Git (software)
General
1 13 (38.24%) Games
2 4 (11.76%) Retail
3 1 (2.94%) Legal
Job Titles
1 31 (91.18%) Developer
2 22 (64.71%) .NET Developer
3 11 (32.35%) C# Developer
4 10 (29.41%) C# .NET Developer
5 7 (20.59%) Software Developer
6 5 (14.71%) PHP Developer
6 5 (14.71%) Senior C# Developer
6 5 (14.71%) Senior Developer
7 4 (11.76%) .NET Software Developer
7 4 (11.76%) ASP.NET Developer
7 4 (11.76%) ASP.NET MVC Developer
7 4 (11.76%) Azure Developer
7 4 (11.76%) C# ASP.NET Developer
7 4 (11.76%) C# Software Developer
7 4 (11.76%) Senior .NET Software Developer
7 4 (11.76%) Senior ASP.NET MVC Developer
7 4 (11.76%) Senior C# .NET Developer
7 4 (11.76%) Senior C# ASP.NET Developer
7 4 (11.76%) Senior C# Software Developer
7 4 (11.76%) Senior Software Developer
Libraries, Frameworks & Software Standards
1 26 (76.47%) .NET
2 22 (64.71%) Twitter Bootstrap
3 21 (61.76%) AngularJS
4 19 (55.88%) ASP.NET
4 19 (55.88%) RESTful
5 18 (52.94%) .NET Framework
5 18 (52.94%) ASP.NET MVC
6 16 (47.06%) ASP.NET MVC 5
7 14 (41.18%) HTML
8 13 (38.24%) Entity Framework
8 13 (38.24%) KnockoutJS
8 13 (38.24%) Node.js
9 12 (35.29%) ASP.NET Web API
9 12 (35.29%) Code First Entity Framework
9 12 (35.29%) WCF
10 11 (32.35%) CSS
11 10 (29.41%) Web Services
12 6 (17.65%) React
12 6 (17.65%) React Native
12 6 (17.65%) SOAP
Miscellaneous
1 7 (20.59%) Linux Command Line
2 1 (2.94%) Mobile App
Operating Systems
1 7 (20.59%) Unix
2 4 (11.76%) Linux
3 3 (8.82%) Windows
Processes & Methodologies
1 31 (91.18%) Agile Software Development
2 26 (76.47%) MVC
3 18 (52.94%) BDD
4 12 (35.29%) Scrum
4 12 (35.29%) Web Application Development
5 7 (20.59%) Collaborative Working
5 7 (20.59%) Software Engineering
5 7 (20.59%) Unit Testing
6 6 (17.65%) Acceptance Criteria
6 6 (17.65%) Continuous Improvement
6 6 (17.65%) Kanban
6 6 (17.65%) OO
6 6 (17.65%) OOP
6 6 (17.65%) Secure Coding
6 6 (17.65%) SOLID
7 4 (11.76%) Continuous Delivery
7 4 (11.76%) Microservices
8 3 (8.82%) Business Intelligence
8 3 (8.82%) Coaching
9 2 (5.88%) Dependency Injection
Programming Languages
1 26 (76.47%) JavaScript
2 25 (73.53%) C#
3 17 (50.00%) SQL
4 12 (35.29%) Ruby
5 8 (23.53%) T-SQL
6 7 (20.59%) PHP
7 1 (2.94%) Java
7 1 (2.94%) Python
7 1 (2.94%) Scala
7 1 (2.94%) TypeScript
System Software
1 4 (11.76%) Docker
Systems Management
1 1 (2.94%) Opscode Chef
Vendors
1 11 (32.35%) Microsoft
2 2 (5.88%) Google
2 2 (5.88%) Twitter