The following table provides summary statistics for permanent job vacancies with a requirement for Test-First Development skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Test-First Development over the 3 months to 27 June 2017 with a comparison to the same period in the previous 2 years.

Test-First Development
UK
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 888 925 973
Rank change year-on-year +37 +48  
Permanent jobs citing Test-First Development 2 7 9
As % of all permanent IT jobs advertised in the UK 0.002% 0.007% 0.008%
As % of the Processes & Methodologies category 0.003% 0.008% 0.009%
Number of salaries quoted 2 7 9
Median salary £40,000 £35,000 £57,500
Median salary % change year-on-year +14.28% -39.13%  
UK excluding London median salary £40,000 £35,000 £56,875
% change year-on-year +14.28% -38.46%  

Test-First Development 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 with a requirement for process and methodology skills.

Process & Methodology Skills
UK
Permanent job vacancies with a requirement for process and methodology skills 79998 87554 96376
As % of all permanent IT job vacancies advertised in the UK 89.73% 88.92% 88.08%
Number of salaries quoted 64425 73206 78779
Median salary £50,000 £50,000 £50,000
90% offered a salary of more than £32,500 £32,500 £31,500
10% offered a salary of more than £80,000 £75,000 £77,500
UK excluding London median salary £45,000 £45,000 £44,000
% change year-on-year - +2.27%  

Test-First Development
Job Vacancy Trend

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

Job vacancy trend for Test-First Development in the UK

Test-First Development
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Test-First Development.

Salary trend for Test-First Development in the UK

Test-First Development
Top 4 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Test-First Development within the UK over the 3 months to 27 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +42 2 £40,000 +14.28%
Andover - 2 £40,000 -
Hampshire - 2 £40,000 -
South East - 2 £40,000 -

For the 6 months to 27 June 2017, IT jobs citing Test-First Development also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for Test-First Development.

1 6 (100.00%) Agile Software Development
1 6 (100.00%) TDD
1 6 (100.00%) Continuous Integration
2 5 (83.33%) Web Development
3 4 (66.67%) C#
3 4 (66.67%) HTML
3 4 (66.67%) .NET
4 3 (50.00%) Oracle
4 3 (50.00%) SQL Server
4 3 (50.00%) Java
4 3 (50.00%) JavaScript
4 3 (50.00%) PL/SQL
4 3 (50.00%) SQL
4 3 (50.00%) ASP.NET
4 3 (50.00%) CSS
4 3 (50.00%) MVC
4 3 (50.00%) Scrum
4 3 (50.00%) jQuery
4 3 (50.00%) Kanban
4 3 (50.00%) SQL Server 2008
4 3 (50.00%) AngularJS
4 3 (50.00%) Unit Testing
5 2 (33.33%) Greenfield Project
5 2 (33.33%) CSS3
5 2 (33.33%) KnockoutJS
5 2 (33.33%) Mentoring
5 2 (33.33%) Jenkins
5 2 (33.33%) TypeScript
5 2 (33.33%) ASP.NET Web API
5 2 (33.33%) DevOps

Test-First Development
Co-occurring IT Skills 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:

Database & Business Intelligence
1 3 (50.00%) SQL Server
1 3 (50.00%) SQL Server 2008
2 2 (33.33%) Couchbase
2 2 (33.33%) MongoDB
2 2 (33.33%) NoSQL
2 2 (33.33%) SQL Server 2012
Development Applications
1 2 (33.33%) Git (software)
1 2 (33.33%) Jenkins
1 2 (33.33%) MbUnit
1 2 (33.33%) Mercurial
1 2 (33.33%) MSTest
1 2 (33.33%) NUnit
1 2 (33.33%) Selenium
1 2 (33.33%) SpecFlow
1 2 (33.33%) TeamCity
1 2 (33.33%) Visual Studio
General
1 1 (16.67%) Banking
1 1 (16.67%) Finance
1 1 (16.67%) Investment Banking
1 1 (16.67%) Retail
Job Titles
1 6 (100.00%) Developer
2 3 (50.00%) Applications Developer
2 3 (50.00%) Applications Support
3 2 (33.33%) .NET Developer
3 2 (33.33%) Analyst
3 2 (33.33%) Analyst Developer
3 2 (33.33%) Applications Support Analyst
3 2 (33.33%) Support Analyst
4 1 (16.67%) .NET Software Developer
4 1 (16.67%) Agile Developer
4 1 (16.67%) ASP.NET Developer
4 1 (16.67%) ASP.NET MVC Developer
4 1 (16.67%) C# .NET Developer
4 1 (16.67%) C# ASP.NET Developer
4 1 (16.67%) C# Developer
4 1 (16.67%) C# Software Developer
4 1 (16.67%) Software Developer
4 1 (16.67%) Xamarin Developer
Libraries, Frameworks & Software Standards
1 4 (66.67%) .NET
1 4 (66.67%) HTML
2 3 (50.00%) AngularJS
2 3 (50.00%) ASP.NET
2 3 (50.00%) CSS
2 3 (50.00%) jQuery
3 2 (33.33%) ASP.NET MVC
3 2 (33.33%) ASP.NET Web API
3 2 (33.33%) CSS3
3 2 (33.33%) Gherkin
3 2 (33.33%) HTML5
3 2 (33.33%) KnockoutJS
3 2 (33.33%) WCF
4 1 (16.67%) .NET Framework
4 1 (16.67%) Node.js
4 1 (16.67%) Twitter Bootstrap
4 1 (16.67%) XML
Miscellaneous
1 2 (33.33%) Greenfield Project
2 1 (16.67%) Mobile App
Operating Systems
1 1 (16.67%) Unix
Processes & Methodologies
1 6 (100.00%) Agile Software Development
1 6 (100.00%) Continuous Integration
1 6 (100.00%) TDD
2 5 (83.33%) Web Development
3 3 (50.00%) Kanban
3 3 (50.00%) MVC
3 3 (50.00%) Scrum
3 3 (50.00%) Unit Testing
4 2 (33.33%) ATDD
4 2 (33.33%) BDD
4 2 (33.33%) DevOps
4 2 (33.33%) Mentoring
4 2 (33.33%) Risk Management
4 2 (33.33%) Test Automation
5 1 (16.67%) Project Management
5 1 (16.67%) SOLID
5 1 (16.67%) Wealth Management
Programming Languages
1 4 (66.67%) C#
2 3 (50.00%) Java
2 3 (50.00%) JavaScript
2 3 (50.00%) PL/SQL
2 3 (50.00%) SQL
3 2 (33.33%) TypeScript
4 1 (16.67%) VB.NET
Vendors
1 3 (50.00%) Oracle
2 1 (16.67%) Xamarin