Period
to 18 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Redhill 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 18 November 2017 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
Surrey > Redhill
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 28 41 47
Rank change year-on-year +13 +6 +2
Permanent jobs citing TDD 22 13 19
As % of all permanent IT jobs advertised in Redhill 7.56% 3.72% 3.86%
As % of the Processes & Methodologies category 8.33% 4.04% 4.71%
Number of salaries quoted 22 12 40
Redhill median annual salary £42,500 £35,500 £50,000
Median salary % change year-on-year +19.72% -29.00% -9.09%
10th Percentile £31,250 £30,250 £41,250
90th Percentile £63,625 £50,700 £62,500
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 Redhill with a requirement for process or methodology skills.

All Process and Methodology Skills
Redhill
Permanent vacancies with a requirement for process or methodology skills 264 322 403
As % of all permanent IT jobs advertised in Redhill 90.72% 92.26% 81.91%
Number of salaries quoted 238 255 390
Redhill median annual salary £50,000 £50,000 £40,500
Median salary % change year-on-year - +23.46% -10.00%
10th Percentile £32,500 £31,250 £25,000
90th Percentile £65,000 £70,000 £61,250
Surrey median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% -

TDD
Job Vacancy Trend in Redhill

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

Job vacancy trend for TDD in Redhill

TDD
Salary Trend in Redhill

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

Salary trend for TDD in Redhill

TDD
Salary Histogram in Redhill

The salary distribution of IT jobs citing TDD in Redhill over the 6 months to 18 November 2017.

Salary histogram for TDD in Redhill

For the 6 months to 18 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 Redhill region with a requirement for TDD.

1 15 (68.18%) Agile Software Development
2 13 (59.09%) C#
3 11 (50.00%) SQL Server
3 11 (50.00%) MVC
4 9 (40.91%) JavaScript
4 9 (40.91%) SOLID
5 8 (36.36%) Software Engineering
5 8 (36.36%) Unit Testing
6 7 (31.82%) C++
6 7 (31.82%) ASP.NET
6 7 (31.82%) .NET
6 7 (31.82%) Web Services
6 7 (31.82%) Linux
6 7 (31.82%) E-Commerce
6 7 (31.82%) Continuous Integration
6 7 (31.82%) Entity Framework
7 6 (27.27%) REST
7 6 (27.27%) Umbraco
7 6 (27.27%) Amazon AWS
7 6 (27.27%) Amazon DynamoDB
7 6 (27.27%) ServiceStack
7 6 (27.27%) User Experience
7 6 (27.27%) SOAP
7 6 (27.27%) CMS
7 6 (27.27%) Marketing
7 6 (27.27%) TeamCity
7 6 (27.27%) Degree
7 6 (27.27%) Computer Science
8 5 (22.73%) Git (software)
8 5 (22.73%) Team Foundation Server

TDD
Co-occurring IT Skills in Redhill 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 6 (27.27%) CMS
1 6 (27.27%) Umbraco
Cloud Services
1 6 (27.27%) Amazon AWS
Communications & Networking
1 2 (9.09%) TCP/IP
Database & Business Intelligence
1 11 (50.00%) SQL Server
2 6 (27.27%) Amazon DynamoDB
3 1 (4.55%) NoSQL
3 1 (4.55%) SQL Server 2012
Development Applications
1 6 (27.27%) TeamCity
2 5 (22.73%) Git (software)
2 5 (22.73%) Team Foundation Server
3 3 (13.64%) GoogleTest
4 2 (9.09%) Jenkins
4 2 (9.09%) Selenium
4 2 (9.09%) SpecFlow
5 1 (4.55%) Visual Studio
General
1 6 (27.27%) Marketing
2 4 (18.18%) Electronics
3 1 (4.55%) Finance
Job Titles
1 14 (63.64%) Developer
2 7 (31.82%) .NET Developer
3 5 (22.73%) Software Engineer
4 4 (18.18%) ASP.NET Developer
4 4 (18.18%) C# .NET Developer
4 4 (18.18%) C# ASP.NET Developer
4 4 (18.18%) C# Developer
4 4 (18.18%) Junior
4 4 (18.18%) Junior Developer
5 3 (13.64%) ASP.NET MVC Developer
5 3 (13.64%) C++ Developer
5 3 (13.64%) C++ Software Engineer
5 3 (13.64%) Senior .NET Developer
5 3 (13.64%) Senior Developer
6 2 (9.09%) Automation Tester
6 2 (9.09%) Lead .NET Developer
6 2 (9.09%) Lead C# Developer
6 2 (9.09%) Lead Developer
6 2 (9.09%) Project Leader
6 2 (9.09%) Tester
Libraries, Frameworks & Software Standards
1 7 (31.82%) .NET
1 7 (31.82%) ASP.NET
1 7 (31.82%) Entity Framework
1 7 (31.82%) Web Services
2 6 (27.27%) REST
2 6 (27.27%) ServiceStack
2 6 (27.27%) SOAP
3 5 (22.73%) ASP.NET MVC
4 4 (18.18%) .NET Framework
5 3 (13.64%) Yocto
6 2 (9.09%) ASP.NET Web API
6 2 (9.09%) WCF
7 1 (4.55%) AngularJS
7 1 (4.55%) ASP.NET Web Forms
7 1 (4.55%) CSS
7 1 (4.55%) jQuery
7 1 (4.55%) KnockoutJS
7 1 (4.55%) Node.js
7 1 (4.55%) React
7 1 (4.55%) WPF
Miscellaneous
1 6 (27.27%) Computer Science
1 6 (27.27%) User Experience
2 4 (18.18%) Contactless
3 1 (4.55%) Mobile App
Operating Systems
1 7 (31.82%) Linux
2 2 (9.09%) Embedded Linux
2 2 (9.09%) Windows
Processes & Methodologies
1 15 (68.18%) Agile Software Development
2 11 (50.00%) MVC
3 9 (40.91%) SOLID
4 8 (36.36%) Software Engineering
4 8 (36.36%) Unit Testing
5 7 (31.82%) Continuous Integration
5 7 (31.82%) E-Commerce
6 5 (22.73%) Scrum
6 5 (22.73%) Test Automation
7 4 (18.18%) Collaborative Working
7 4 (18.18%) Presales
7 4 (18.18%) Risk Analysis
8 3 (13.64%) Software Architecture
9 2 (9.09%) Continuous Delivery
9 2 (9.09%) Dependency Injection
9 2 (9.09%) DevOps
9 2 (9.09%) Exploratory Testing
9 2 (9.09%) Inversion of Control
9 2 (9.09%) QMS
9 2 (9.09%) Quality Management
Programming Languages
1 13 (59.09%) C#
2 9 (40.91%) JavaScript
3 7 (31.82%) C++
4 4 (18.18%) C
4 4 (18.18%) Embedded C
4 4 (18.18%) Embedded C++
5 3 (13.64%) Java
6 2 (9.09%) Python
6 2 (9.09%) Shell Script
6 2 (9.09%) SQL
7 1 (4.55%) T-SQL
Qualifications
1 6 (27.27%) Degree
2 2 (9.09%) ISTQB
2 2 (9.09%) ISTQB Foundation Certification
Quality Assurance & Compliance
1 4 (18.18%) QA
Vendors
1 1 (4.55%) DevExpress