Period
to 15 December 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 15 December 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Cheshire > Chester
6 months to
15 Dec 2018
Same period 2017 Same period 2016
Rank 16 20 15
Rank change year-on-year +4 -5 +1
Permanent jobs citing TDD 28 45 37
As % of all permanent IT jobs advertised in Chester 12.33% 11.14% 13.03%
As % of the Processes & Methodologies category 13.02% 12.10% 14.62%
Number of salaries quoted 30 42 32
Chester median annual salary £45,000 £50,000 £42,500
Median salary % change year-on-year -10.00% +17.65% -5.56%
10th Percentile £32,500 £38,750 £33,425
90th Percentile £61,250 £55,000 £51,250
Cheshire median annual salary £50,165 £47,500 £42,500
% change year-on-year +5.61% +11.76% +8.97%

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 215 372 253
As % of all permanent IT jobs advertised in Chester 94.71% 92.08% 89.08%
Number of salaries quoted 188 324 201
Chester median annual salary £45,000 £42,500 £38,500
Median salary % change year-on-year +5.88% +10.39% -9.41%
10th Percentile £26,250 £26,075 £24,500
90th Percentile £69,125 £60,000 £60,000
Cheshire median annual salary £45,000 £45,000 £37,500
% change year-on-year - +20.00% -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 15 December 2018.

Salary histogram for TDD in Chester

For the 6 months to 15 December 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 28 (100.00%) Agile Software Development
2 20 (71.43%) C#
2 20 (71.43%) .NET
2 20 (71.43%) SQL Server
2 20 (71.43%) Web Services
3 19 (67.86%) SQL
4 17 (60.71%) T-SQL
4 17 (60.71%) WCF
5 15 (53.57%) RESTful
5 15 (53.57%) BDD
5 15 (53.57%) SOAP
5 15 (53.57%) Windows
5 15 (53.57%) Microsoft
6 14 (50.00%) MVC
6 14 (50.00%) .NET Framework
7 12 (42.86%) Visual Studio
7 12 (42.86%) Team Foundation Server
7 12 (42.86%) Acceptance Criteria
8 8 (28.57%) ASP.NET
8 8 (28.57%) PMI
8 8 (28.57%) PMI Certification
8 8 (28.57%) ASP.NET MVC
9 7 (25.00%) Kanban
10 6 (21.43%) Java
10 6 (21.43%) JIRA
11 5 (17.86%) JavaScript
11 5 (17.86%) Git (software)
11 5 (17.86%) NoSQL
12 4 (14.29%) REST
12 4 (14.29%) Amazon AWS

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 3 (10.71%) Apache Spark
1 3 (10.71%) Jetty
1 3 (10.71%) Tomcat
2 2 (7.14%) Apache
3 1 (3.57%) Apache Pig
3 1 (3.57%) Elasticsearch
Cloud Services
1 4 (14.29%) Amazon AWS
2 2 (7.14%) Amazon EC2
2 2 (7.14%) Amazon EMR
2 2 (7.14%) Cloud Computing
2 2 (7.14%) Microsoft Azure
Communications & Networking
1 3 (10.71%) HTTP
2 1 (3.57%) Internet
Database & Business Intelligence
1 20 (71.43%) SQL Server
2 5 (17.86%) NoSQL
3 3 (10.71%) Big Data
3 3 (10.71%) Hadoop
3 3 (10.71%) MongoDB
4 2 (7.14%) Amazon Athena
4 2 (7.14%) Amazon Redshift
4 2 (7.14%) Flink
4 2 (7.14%) SQL Server 2016
5 1 (3.57%) Apache Hive
5 1 (3.57%) MySQL
Development Applications
1 12 (42.86%) Team Foundation Server
1 12 (42.86%) Visual Studio
2 6 (21.43%) JIRA
3 5 (17.86%) Git (software)
4 3 (10.71%) Gradle
4 3 (10.71%) Maven
5 1 (3.57%) AccuRev
5 1 (3.57%) TeamCity
General
1 3 (10.71%) Banking
1 3 (10.71%) Finance
2 2 (7.14%) Games
Job Titles
1 24 (85.71%) Developer
2 18 (64.29%) .NET Developer
3 11 (39.29%) C# .NET Developer
3 11 (39.29%) C# Developer
4 5 (17.86%) Senior Developer
5 3 (10.71%) Java Developer
6 2 (7.14%) .NET Software Developer
6 2 (7.14%) ASP.NET Developer
6 2 (7.14%) C# ASP.NET Developer
6 2 (7.14%) C# Software Developer
6 2 (7.14%) Data Engineer
6 2 (7.14%) Lead Developer
6 2 (7.14%) Senior .NET Developer
6 2 (7.14%) Senior ASP.NET Developer
6 2 (7.14%) Senior C# .NET Developer
6 2 (7.14%) Senior C# Developer
6 2 (7.14%) Senior C# Software Developer
6 2 (7.14%) Senior Java Developer
6 2 (7.14%) Senior Software Developer
6 2 (7.14%) Software Developer
Libraries, Frameworks & Software Standards
1 20 (71.43%) .NET
1 20 (71.43%) Web Services
2 17 (60.71%) WCF
3 15 (53.57%) RESTful
3 15 (53.57%) SOAP
4 14 (50.00%) .NET Framework
5 8 (28.57%) ASP.NET
5 8 (28.57%) ASP.NET MVC
6 4 (14.29%) AngularJS
6 4 (14.29%) CSS
6 4 (14.29%) HTML
6 4 (14.29%) J2EE
6 4 (14.29%) REST
7 3 (10.71%) ASP.NET Web Forms
7 3 (10.71%) Kafka
7 3 (10.71%) Spring
7 3 (10.71%) Twitter Bootstrap
8 2 (7.14%) ASP.NET Web API
8 2 (7.14%) Entity Framework
8 2 (7.14%) Spark Streaming
Miscellaneous
1 8 (28.57%) PMI
2 2 (7.14%) EPoS
3 1 (3.57%) Enterprise Software
3 1 (3.57%) Infotainment
3 1 (3.57%) Internet of Things
Operating Systems
1 15 (53.57%) Windows
2 3 (10.71%) Unix
Processes & Methodologies
1 28 (100.00%) Agile Software Development
2 15 (53.57%) BDD
3 14 (50.00%) MVC
4 12 (42.86%) Acceptance Criteria
5 7 (25.00%) Kanban
6 4 (14.29%) Multithreading
7 3 (10.71%) API Design
7 3 (10.71%) Computer Science
7 3 (10.71%) Data Engineering
7 3 (10.71%) Data Modelling
7 3 (10.71%) Dependency Injection
7 3 (10.71%) Microservices
7 3 (10.71%) Scrum
7 3 (10.71%) SOA
8 2 (7.14%) Biometrics
8 2 (7.14%) Change Management
8 2 (7.14%) Configuration Management
8 2 (7.14%) CRM
8 2 (7.14%) Data Ingestion
8 2 (7.14%) OOP
Programming Languages
1 20 (71.43%) C#
2 19 (67.86%) SQL
3 17 (60.71%) T-SQL
4 6 (21.43%) Java
5 5 (17.86%) JavaScript
6 3 (10.71%) Python
7 2 (7.14%) Ruby
7 2 (7.14%) Scala
8 1 (3.57%) F#
8 1 (3.57%) PHP
8 1 (3.57%) VB.NET
Qualifications
1 8 (28.57%) PMI Certification
2 3 (10.71%) Computer Science Degree
2 3 (10.71%) Degree
3 2 (7.14%) Numerate Degree
4 1 (3.57%) ISTQB
Quality Assurance & Compliance
1 3 (10.71%) GDPR
2 1 (3.57%) QA
System Software
1 1 (3.57%) Virtual Machines
Systems Management
1 1 (3.57%) Ansible
1 1 (3.57%) Kibana
Vendors
1 15 (53.57%) Microsoft
2 2 (7.14%) CA Agile Central
3 1 (3.57%) Cloudera
3 1 (3.57%) Google
3 1 (3.57%) Talend