The following table provides summary statistics for permanent job vacancies advertised in Stevenage with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 3 months to 28 March 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Hertfordshire / Stevenage
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 17 25 10
Rank change year-on-year +8 -15  
Permanent jobs citing TDD 9 1 13
As % of all permanent IT jobs advertised in Stevenage 9.18% 0.84% 12.75%
As % of the Processes & Methodologies category 10.98% 0.98% 18.57%
Number of salaries quoted 9 1 13
Median salary £55,000 £50,000 £50,000
Median salary % change year-on-year +10.00% -  
UK excluding London median salary £45,000 £45,000 £40,500
% change year-on-year - +11.11%  

TDD is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Stevenage with a requirement for process and methodology skills.

Process & Methodology Skills
Stevenage
Permanent job vacancies with a requirement for process and methodology skills 82 102 70
As % of all permanent IT job vacancies advertised in Stevenage 83.67% 85.71% 68.63%
Number of salaries quoted 76 83 60
Median salary £45,000 £47,500 £47,500
Median salary % change year-on-year -5.26% -  
90% offered a salary of more than £32,500 £35,000 £26,500
10% offered a salary of more than £55,000 £52,500 £75,000
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

TDD
Job Vacancy Trend in Stevenage

The job posting trend of jobs advertised in Stevenage citing TDD as a proportion of all permanent or contract IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for TDD in Stevenage

TDD
Salary Trend in Stevenage

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

Salary trend for TDD in Stevenage

For the 6 months to 28 March 2017, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Stevenage region with a requirement for TDD.

1 28 (100.00%) Agile Software Development
2 25 (89.29%) Scrum
3 13 (46.43%) JavaScript
3 13 (46.43%) HTML
3 13 (46.43%) CSS
4 12 (42.86%) C#
4 12 (42.86%) SQL
5 11 (39.29%) .NET
5 11 (39.29%) ASP.NET
5 11 (39.29%) XML
5 11 (39.29%) MS Excel
5 11 (39.29%) SOA
5 11 (39.29%) Microsoft
5 11 (39.29%) ISEB
5 11 (39.29%) MVC
5 11 (39.29%) ISTQB
5 11 (39.29%) QA
5 11 (39.29%) Selenium
5 11 (39.29%) jQuery
5 11 (39.29%) User Acceptance Testing
5 11 (39.29%) Unit Testing
5 11 (39.29%) Test Scripting
5 11 (39.29%) Software Testing
5 11 (39.29%) Team Foundation Server
5 11 (39.29%) WebDriver
5 11 (39.29%) MVVM
5 11 (39.29%) BDD
5 11 (39.29%) ASP.NET MVC
5 11 (39.29%) ASP.NET MVC 4
5 11 (39.29%) ASP.NET Web Forms

TDD
Co-occurring IT Skills in Stevenage 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 (7.14%) OpenStack
Applications
1 11 (39.29%) MS Excel
Database & Business Intelligence
1 4 (14.29%) MySQL
2 3 (10.71%) PostgreSQL
2 3 (10.71%) Redis
Development Applications
1 11 (39.29%) Selenium
1 11 (39.29%) Team Foundation Server
1 11 (39.29%) WebDriver
2 3 (10.71%) RSpec
3 1 (3.57%) Git (software)
General
1 2 (7.14%) Finance
Job Titles
1 17 (60.71%) Developer
2 14 (50.00%) Senior Developer
3 11 (39.29%) .NET Developer
3 11 (39.29%) Analyst
3 11 (39.29%) Senior .NET Developer
3 11 (39.29%) Test Analyst
4 3 (10.71%) C# .NET Developer
4 3 (10.71%) C# Developer
4 3 (10.71%) Ruby Developer
4 3 (10.71%) Senior Analyst
4 3 (10.71%) Senior C# .NET Developer
4 3 (10.71%) Senior C# Developer
4 3 (10.71%) Senior Test Analyst
5 2 (7.14%) ASP.NET MVC Developer
5 2 (7.14%) C# ASP.NET Developer
5 2 (7.14%) Java Developer
5 2 (7.14%) Senior ASP.NET Developer
5 2 (7.14%) Senior ASP.NET MVC Developer
5 2 (7.14%) Senior C# ASP.NET Developer
5 2 (7.14%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 13 (46.43%) CSS
1 13 (46.43%) HTML
2 11 (39.29%) .NET
2 11 (39.29%) .NET Core
2 11 (39.29%) ASP.NET
2 11 (39.29%) ASP.NET MVC
2 11 (39.29%) ASP.NET MVC 4
2 11 (39.29%) ASP.NET Web Forms
2 11 (39.29%) jQuery
2 11 (39.29%) KnockoutJS
2 11 (39.29%) XML
3 3 (10.71%) Ruby on Rails
3 3 (10.71%) Web Services
4 2 (7.14%) AngularJS
4 2 (7.14%) ASP.NET Core
4 2 (7.14%) ASP.NET MVC 5
5 1 (3.57%) Node.js
5 1 (3.57%) React
5 1 (3.57%) Spring
5 1 (3.57%) Spring Boot
Operating Systems
1 1 (3.57%) Linux
1 1 (3.57%) Mac OS X
Processes & Methodologies
1 28 (100.00%) Agile Software Development
2 25 (89.29%) Scrum
3 11 (39.29%) BDD
3 11 (39.29%) MVC
3 11 (39.29%) MVVM
3 11 (39.29%) SOA
3 11 (39.29%) Software Testing
3 11 (39.29%) Test Scripting
3 11 (39.29%) Unit Testing
3 11 (39.29%) User Acceptance Testing
4 2 (7.14%) Kanban
4 2 (7.14%) Open Source
4 2 (7.14%) Open Source Development
4 2 (7.14%) Software Engineering
5 1 (3.57%) Extreme Programming
5 1 (3.57%) Mentoring
5 1 (3.57%) Microservices
5 1 (3.57%) OO
Programming Languages
1 13 (46.43%) JavaScript
2 12 (42.86%) C#
2 12 (42.86%) SQL
3 3 (10.71%) Ruby
4 2 (7.14%) Java
Qualifications
1 11 (39.29%) ISEB
1 11 (39.29%) ISTQB
1 11 (39.29%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 11 (39.29%) QA
Vendors
1 11 (39.29%) Microsoft