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 30 March 2017 with a comparison to the same period in the previous 2 years.

Test-First Development
UK
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 848 943 961
Rank change year-on-year +95 +18  
Permanent jobs citing Test-First Development 4 7 8
As % of all permanent IT jobs advertised in the UK 0.005% 0.007% 0.007%
As % of the Processes & Methodologies category 0.005% 0.008% 0.009%
Number of salaries quoted 3 7 8
Median salary £42,500 £47,500 £46,250
Median salary % change year-on-year -10.52% +2.70%  
90% offered a salary of more than £38,500 £35,000 £42,850
10% offered a salary of more than £44,500 £65,000 £66,375
UK excluding London median salary £42,500 £47,500 £45,000
% change year-on-year -10.52% +5.55%  

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 76216 92627 93645
As % of all permanent IT job vacancies advertised in the UK 89.14% 88.57% 86.99%
Number of salaries quoted 62695 76706 75786
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 £77,500 £75,000 £75,000
UK excluding London median salary £45,000 £45,000 £43,000
% change year-on-year - +4.65%  

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 7 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 30 March 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
Wales - 2 £42,500 -
South Wales - 2 £42,500 -
Cardiff - 2 £42,500 -
England +70 1 £37,500 -21.05%
South East +59 1 £37,500 -42.30%
Hampshire +18 1 £37,500 -42.30%
Winchester - 1 £37,500 -

For the 6 months to 30 March 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 4 (100.00%) C#
1 4 (100.00%) HTML
1 4 (100.00%) .NET
1 4 (100.00%) Agile Software Development
1 4 (100.00%) TDD
1 4 (100.00%) Continuous Integration
2 3 (75.00%) jQuery
2 3 (75.00%) Unit Testing
2 3 (75.00%) SQL Server 2008
2 3 (75.00%) AngularJS
2 3 (75.00%) Scrum
2 3 (75.00%) MVC
2 3 (75.00%) Web Development
2 3 (75.00%) SQL Server
2 3 (75.00%) ASP.NET
2 3 (75.00%) CSS
2 3 (75.00%) JavaScript
3 2 (50.00%) Visual Studio
3 2 (50.00%) Risk Management
3 2 (50.00%) Selenium
3 2 (50.00%) WCF
3 2 (50.00%) NUnit
3 2 (50.00%) Jenkins
3 2 (50.00%) SpecFlow
3 2 (50.00%) Gherkin
3 2 (50.00%) ATDD
3 2 (50.00%) SQL Server 2012
3 2 (50.00%) Couchbase
3 2 (50.00%) TypeScript
3 2 (50.00%) ASP.NET Web API

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 (75.00%) SQL Server
1 3 (75.00%) SQL Server 2008
2 2 (50.00%) Couchbase
2 2 (50.00%) MongoDB
2 2 (50.00%) NoSQL
2 2 (50.00%) SQL Server 2012
Development Applications
1 2 (50.00%) Git (software)
1 2 (50.00%) Jenkins
1 2 (50.00%) MbUnit
1 2 (50.00%) Mercurial
1 2 (50.00%) MSTest
1 2 (50.00%) NUnit
1 2 (50.00%) Selenium
1 2 (50.00%) SpecFlow
1 2 (50.00%) TeamCity
1 2 (50.00%) Visual Studio
General
1 1 (25.00%) Banking
1 1 (25.00%) Finance
1 1 (25.00%) Investment Banking
1 1 (25.00%) Retail
Job Titles
1 4 (100.00%) Developer
2 2 (50.00%) .NET Developer
3 1 (25.00%) .NET Software Developer
3 1 (25.00%) Agile Developer
3 1 (25.00%) Applications Developer
3 1 (25.00%) Applications Support
3 1 (25.00%) ASP.NET Developer
3 1 (25.00%) ASP.NET MVC Developer
3 1 (25.00%) C# .NET Developer
3 1 (25.00%) C# ASP.NET Developer
3 1 (25.00%) C# Developer
3 1 (25.00%) C# Software Developer
3 1 (25.00%) Software Developer
3 1 (25.00%) Xamarin Developer
Libraries, Frameworks & Software Standards
1 4 (100.00%) .NET
1 4 (100.00%) HTML
2 3 (75.00%) AngularJS
2 3 (75.00%) ASP.NET
2 3 (75.00%) CSS
2 3 (75.00%) jQuery
3 2 (50.00%) ASP.NET MVC
3 2 (50.00%) ASP.NET Web API
3 2 (50.00%) CSS3
3 2 (50.00%) Gherkin
3 2 (50.00%) HTML5
3 2 (50.00%) KnockoutJS
3 2 (50.00%) WCF
4 1 (25.00%) .NET Framework
4 1 (25.00%) Node.js
4 1 (25.00%) Twitter Bootstrap
4 1 (25.00%) XML
Miscellaneous
1 1 (25.00%) Mobile App
Operating Systems
1 1 (25.00%) Unix
Processes & Methodologies
1 4 (100.00%) Agile Software Development
1 4 (100.00%) Continuous Integration
1 4 (100.00%) TDD
2 3 (75.00%) MVC
2 3 (75.00%) Scrum
2 3 (75.00%) Unit Testing
2 3 (75.00%) Web Development
3 2 (50.00%) ATDD
3 2 (50.00%) Automated Testing
3 2 (50.00%) BDD
3 2 (50.00%) DevOps
3 2 (50.00%) Mentoring
3 2 (50.00%) Risk Management
3 2 (50.00%) Test Automation
4 1 (25.00%) Kanban
4 1 (25.00%) Project Management
4 1 (25.00%) SOLID
4 1 (25.00%) Wealth Management
Programming Languages
1 4 (100.00%) C#
2 3 (75.00%) JavaScript
3 2 (50.00%) TypeScript
4 1 (25.00%) Java
4 1 (25.00%) PL/SQL
4 1 (25.00%) SQL
4 1 (25.00%) VB.NET
Vendors
1 1 (25.00%) Oracle
1 1 (25.00%) Xamarin