Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in Redhill with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates 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.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
Surrey > Redhill
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 21 20 21
Rank change year-on-year -1 +1 -9
Contract jobs citing TDD 10 3 3
As % of all contract IT jobs advertised in Redhill 6.99% 2.94% 3.41%
As % of the Processes & Methodologies category 7.52% 3.37% 4.11%
Number of daily rates quoted 3 3 3
Redhill median daily rate £425 £300 £400
Median daily rate % change year-on-year +41.67% -25.00% +23.08%
10th Percentile £346 £300 £320
90th Percentile £468 £300 £490
Surrey median daily rate £494 £450 £413
% change year-on-year +9.72% +9.09% +26.92%
Number of hourly rates quoted 0 0 0
Redhill median hourly rate - - -
Surrey median hourly rate - - £40.00

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Redhill with a requirement for process or methodology skills.

All Process and Methodology Skills
Redhill
Contract vacancies with a requirement for process or methodology skills 133 89 73
As % of all contract IT jobs advertised in Redhill 93.01% 87.25% 82.95%
Number of daily rates quoted 95 68 20
Redhill median daily rate £425 £415 £369
Median daily rate % change year-on-year +2.41% +12.54% +14.34%
10th Percentile £346 £178 £305
90th Percentile £538 £479 £509
Surrey median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +6.67%
Number of hourly rates quoted 12 4 5
Redhill median hourly rate £45.00 £42.00 £14.55
Median hourly rate % change year-on-year +7.14% +188.66% -
10th Percentile £25.00 £25.10 £13.44
90th Percentile £50.25 £46.00 £47.25
Surrey median hourly rate £30.00 £27.50 £31.25
% change year-on-year +9.09% -12.00% +4.17%

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
Contractor Daily Rate Trend in Redhill

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Redhill.

Contractor daily rate trend for TDD in Redhill

TDD
Contractor Daily Rate Histogram in Redhill

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

Contractor daily rate histogram for TDD in Redhill

TDD
Contractor Hourly Rate Trend in Redhill

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Redhill.

Contractor hourly rate trend for TDD in Redhill

For the 6 months to 18 November 2017, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Redhill region with a requirement for TDD.

1 9 (90.00%) Agile Software Development
2 7 (70.00%) Linux
2 7 (70.00%) C++
2 7 (70.00%) Git (software)
2 7 (70.00%) Test Automation
2 7 (70.00%) Software Architecture
2 7 (70.00%) GoogleTest
2 7 (70.00%) Software Engineering
2 7 (70.00%) Yocto
3 2 (20.00%) AngularJS
3 2 (20.00%) Microsoft Azure
3 2 (20.00%) C#
3 2 (20.00%) SQL Server
3 2 (20.00%) .NET
4 1 (10.00%) Oracle
4 1 (10.00%) SOA
4 1 (10.00%) GCP
4 1 (10.00%) Finance
4 1 (10.00%) Scrum
4 1 (10.00%) DB2
4 1 (10.00%) ASP.NET
4 1 (10.00%) CSS
4 1 (10.00%) HTML
4 1 (10.00%) Java
4 1 (10.00%) JavaScript
4 1 (10.00%) SQL
4 1 (10.00%) VB.NET
4 1 (10.00%) Spring
4 1 (10.00%) Amazon AWS
4 1 (10.00%) HTML5

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 1 (10.00%) Cloud Foundry
Cloud Services
1 2 (20.00%) Microsoft Azure
2 1 (10.00%) Amazon AWS
2 1 (10.00%) Google Cloud Platform
Database & Business Intelligence
1 2 (20.00%) SQL Server
2 1 (10.00%) DB2
2 1 (10.00%) MongoDB
2 1 (10.00%) NoSQL
Development Applications
1 7 (70.00%) Git (software)
1 7 (70.00%) GoogleTest
2 1 (10.00%) Selenium
General
1 1 (10.00%) Finance
Job Titles
1 10 (100.00%) Developer
2 8 (80.00%) Senior Developer
3 7 (70.00%) C++ Developer
3 7 (70.00%) Senior C++ Developer
4 2 (20.00%) C# Developer
5 1 (10.00%) .NET Developer
5 1 (10.00%) Angular Developer
5 1 (10.00%) ASP.NET Developer
5 1 (10.00%) Azure Developer
5 1 (10.00%) C# .NET Developer
5 1 (10.00%) C# ASP.NET Developer
5 1 (10.00%) Java Developer
5 1 (10.00%) Senior C# Developer
5 1 (10.00%) SQL Developer
5 1 (10.00%) SQL Server Developer
Libraries, Frameworks & Software Standards
1 7 (70.00%) Yocto
2 2 (20.00%) .NET
2 2 (20.00%) AngularJS
3 1 (10.00%) ASP.NET
3 1 (10.00%) CSS
3 1 (10.00%) Gherkin
3 1 (10.00%) HTML
3 1 (10.00%) HTML5
3 1 (10.00%) React
3 1 (10.00%) Spring
3 1 (10.00%) Twitter Bootstrap
Miscellaneous
1 1 (10.00%) Greenfield Project
1 1 (10.00%) Public Cloud
Operating Systems
1 7 (70.00%) Linux
Processes & Methodologies
1 9 (90.00%) Agile Software Development
2 7 (70.00%) Software Architecture
2 7 (70.00%) Software Engineering
2 7 (70.00%) Test Automation
3 1 (10.00%) Scrum
3 1 (10.00%) SOA
3 1 (10.00%) SOLID
Programming Languages
1 7 (70.00%) C++
2 2 (20.00%) C#
3 1 (10.00%) Java
3 1 (10.00%) JavaScript
3 1 (10.00%) SQL
3 1 (10.00%) VB.NET
Quality Assurance & Compliance
1 1 (10.00%) GCP
System Software
1 1 (10.00%) Docker
Vendors
1 1 (10.00%) Oracle