Period
to 17 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Chertsey 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 17 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Chertsey
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 20 14 26
Rank change year-on-year -6 +12 -4
Permanent jobs citing TDD 8 18 8
As % of all permanent IT jobs advertised in Chertsey 5.97% 15.65% 6.40%
As % of the Processes & Methodologies category 7.14% 21.95% 7.92%
Number of salaries quoted 8 18 8
Chertsey median annual salary £39,250 £45,000 £55,000
Median salary % change year-on-year -12.78% -18.18% +22.22%
10th Percentile £36,750 £42,500 £22,500
90th Percentile £49,375 £51,250 £60,000
Surrey median annual salary £50,000 £50,000 £52,500
% change year-on-year - -4.76% +12.90%

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 Chertsey with a requirement for process or methodology skills.

All Process and Methodology Skills
Chertsey
Permanent vacancies with a requirement for process or methodology skills 112 82 101
As % of all permanent IT jobs advertised in Chertsey 83.58% 71.30% 80.80%
Number of salaries quoted 105 78 91
Chertsey median annual salary £41,000 £45,000 £50,000
Median salary % change year-on-year -8.89% -10.00% +25.00%
10th Percentile £26,250 £31,250 £22,500
90th Percentile £66,000 £49,500 £62,500
Surrey median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

TDD
Job Vacancy Trend in Chertsey

Job postings citing TDD as a percentage of all IT jobs advertised in Chertsey.

Job vacancy trend for TDD in Chertsey

TDD
Salary Trend in Chertsey

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

Salary trend for TDD in Chertsey

TDD
Salary Histogram in Chertsey

The salary distribution of IT jobs citing TDD in Chertsey over the 6 months to 17 November 2017.

Salary histogram for TDD in Chertsey

For the 6 months to 17 November 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 Chertsey region with a requirement for TDD.

1 8 (100.00%) C#
1 8 (100.00%) Scrum
2 7 (87.50%) Oracle
3 6 (75.00%) SQL
3 6 (75.00%) .NET
3 6 (75.00%) BDD
3 6 (75.00%) Oracle Database
4 5 (62.50%) Test Planning
4 5 (62.50%) Test Automation
4 5 (62.50%) WebDriver
4 5 (62.50%) Software Testing
4 5 (62.50%) Selenium
4 5 (62.50%) VB.NET
4 5 (62.50%) ISEB
4 5 (62.50%) Agile Software Development
5 4 (50.00%) NUnit
5 4 (50.00%) TestPartner
5 4 (50.00%) Degree
5 4 (50.00%) TestComplete
6 3 (37.50%) Project Management
6 3 (37.50%) SpecFlow
6 3 (37.50%) Agile Project Management
6 3 (37.50%) Jenkins
6 3 (37.50%) Visual Studio
6 3 (37.50%) SDLC
6 3 (37.50%) VersionOne
6 3 (37.50%) Acceptance Criteria
7 2 (25.00%) CSS
7 2 (25.00%) HTML
7 2 (25.00%) JavaScript

TDD
Co-occurring IT Skills in Chertsey 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 (12.50%) Oracle SOA Suite
Applications
1 1 (12.50%) Adobe Illustrator
Database & Business Intelligence
1 6 (75.00%) Oracle Database
2 1 (12.50%) Oracle Database 10g
2 1 (12.50%) Relational Database
Development Applications
1 5 (62.50%) Selenium
1 5 (62.50%) WebDriver
2 4 (50.00%) NUnit
2 4 (50.00%) TestComplete
2 4 (50.00%) TestPartner
3 3 (37.50%) Jenkins
3 3 (37.50%) SpecFlow
3 3 (37.50%) VersionOne
3 3 (37.50%) Visual Studio
4 2 (25.00%) HP UFT
5 1 (12.50%) Jasmine
5 1 (12.50%) Karma Test Runner
5 1 (12.50%) Protractor
5 1 (12.50%) Rhino Mocks
Job Titles
1 5 (62.50%) Tester
2 4 (50.00%) Team Leader
3 3 (37.50%) Lead Tester
3 3 (37.50%) Technical Leader
3 3 (37.50%) Technical Team Leader
3 3 (37.50%) Technical Tester
4 2 (25.00%) Automation Tester
4 2 (25.00%) Developer
5 1 (12.50%) .NET Development Team Leader
5 1 (12.50%) .NET Team Leader
5 1 (12.50%) Applications Developer
5 1 (12.50%) C# Developer
5 1 (12.50%) Development Team Leader
5 1 (12.50%) Selenium Automation Tester
5 1 (12.50%) Selenium Tester
5 1 (12.50%) UI Developer
5 1 (12.50%) VB.NET Team Leader
Libraries, Frameworks & Software Standards
1 6 (75.00%) .NET
2 2 (25.00%) AngularJS
2 2 (25.00%) CSS
2 2 (25.00%) HTML
2 2 (25.00%) WCF
3 1 (12.50%) .NET Framework
3 1 (12.50%) Ajax
3 1 (12.50%) Angular 2
3 1 (12.50%) ASP.NET Web API
3 1 (12.50%) jQuery
3 1 (12.50%) JSON
3 1 (12.50%) LINQ
3 1 (12.50%) NHibernate
3 1 (12.50%) Twitter Bootstrap
3 1 (12.50%) Web Services
3 1 (12.50%) WPF
3 1 (12.50%) XML
3 1 (12.50%) XSD
Processes & Methodologies
1 8 (100.00%) Scrum
2 6 (75.00%) BDD
3 5 (62.50%) Agile Software Development
3 5 (62.50%) Software Testing
3 5 (62.50%) Test Automation
3 5 (62.50%) Test Planning
4 3 (37.50%) Acceptance Criteria
4 3 (37.50%) Agile Project Management
4 3 (37.50%) Project Management
4 3 (37.50%) SDLC
5 2 (25.00%) Mentoring
6 1 (12.50%) Line Management
6 1 (12.50%) MVC
6 1 (12.50%) SOA
6 1 (12.50%) Software Engineering
Programming Languages
1 8 (100.00%) C#
2 6 (75.00%) SQL
3 5 (62.50%) VB.NET
4 2 (25.00%) JavaScript
5 1 (12.50%) PL/SQL
5 1 (12.50%) VB
5 1 (12.50%) VB6
5 1 (12.50%) XAML
Qualifications
1 5 (62.50%) ISEB
2 4 (50.00%) Degree
Vendors
1 7 (87.50%) Oracle
2 1 (12.50%) Adobe