Period
to 15 February 2019

The following table provides summary statistics for contract job vacancies advertised in High Wycombe 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 15 February 2019 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)
Buckinghamshire > High Wycombe
6 months to
15 Feb 2019
Same period 2018 Same period 2017
Rank 14 15 -
Rank change year-on-year +1 - -
Contract jobs citing TDD 8 6 0
As % of all contract IT jobs advertised in High Wycombe 7.14% 6.12% -
As % of the Processes & Methodologies category 7.62% 7.50% -
Number of daily rates quoted 6 24 0
High Wycombe median daily rate £441 £363 -
Median daily rate % change year-on-year +21.72% - -
Buckinghamshire median daily rate £401 £425 £391
% change year-on-year -5.76% +8.63% -7.94%
Number of hourly rates quoted 0 0 0
High Wycombe median hourly rate - - -
Buckinghamshire median hourly rate £42.50 - -

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 High Wycombe with a requirement for process or methodology skills.

All Process and Methodology Skills
High Wycombe
Contract vacancies with a requirement for process or methodology skills 105 80 51
As % of all contract IT jobs advertised in High Wycombe 93.75% 81.63% 80.95%
Number of daily rates quoted 66 39 26
High Wycombe median daily rate £350 £350 £320
Median daily rate % change year-on-year - +9.38% +6.67%
10th Percentile £192 £241 £106
90th Percentile £475 £470 £506
Buckinghamshire median daily rate £425 £415 £400
% change year-on-year +2.41% +3.75% +3.90%
Number of hourly rates quoted 14 27 18
High Wycombe median hourly rate £39.50 £27.00 £13.06
Median hourly rate % change year-on-year +46.30% +106.70% -63.72%
10th Percentile £15.00 £12.25 £10.17
90th Percentile £48.38 £48.30 £42.10
Buckinghamshire median hourly rate £17.50 £18.00 £15.00
% change year-on-year -2.78% +20.00% -7.06%

TDD
Job Vacancy Trend in High Wycombe

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

Job vacancy trend for TDD in High Wycombe

TDD
Contractor Daily Rate Trend in High Wycombe

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

Contractor daily rate trend for TDD in High Wycombe

For the 6 months to 15 February 2019, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the High Wycombe region with a requirement for TDD.

1 6 (75.00%) C#
1 6 (75.00%) .NET
1 6 (75.00%) Agile Software Development
1 6 (75.00%) BDD
1 6 (75.00%) Jenkins
2 5 (62.50%) JSON
2 5 (62.50%) Scrum
2 5 (62.50%) JavaScript
3 4 (50.00%) JIRA
3 4 (50.00%) TypeScript
3 4 (50.00%) Kanban
3 4 (50.00%) Confluence
3 4 (50.00%) Front End Development
3 4 (50.00%) AngularJS
4 3 (37.50%) Mobile Development
4 3 (37.50%) REST
4 3 (37.50%) User Experience
4 3 (37.50%) Mobile App
4 3 (37.50%) Bourne shell
4 3 (37.50%) Bitbucket
4 3 (37.50%) Git (software)
4 3 (37.50%) Test Automation
4 3 (37.50%) .NET Framework
4 3 (37.50%) HTML
4 3 (37.50%) CSS
5 2 (25.00%) XML
5 2 (25.00%) Windows
5 2 (25.00%) MFC
5 2 (25.00%) Microsoft
5 2 (25.00%) WPF

TDD
Co-occurring IT Skills in High Wycombe 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 4 (50.00%) Confluence
Cloud Services
1 1 (12.50%) GitHub
1 1 (12.50%) Microsoft Azure
Communications & Networking
1 1 (12.50%) RFID
Development Applications
1 6 (75.00%) Jenkins
2 4 (50.00%) JIRA
3 3 (37.50%) Bitbucket
3 3 (37.50%) Git (software)
4 1 (12.50%) Cucumber
4 1 (12.50%) Octopus Deploy
General
1 1 (12.50%) Finance
1 1 (12.50%) Retail
Job Titles
1 6 (75.00%) Developer
2 4 (50.00%) Angular Developer
3 2 (25.00%) Architect
3 2 (25.00%) Front End Developer (Client-Side Developer)
3 2 (25.00%) Software Architect
4 1 (12.50%) .NET Architect
4 1 (12.50%) .NET Developer
4 1 (12.50%) C# .NET Developer
4 1 (12.50%) C# Architect
4 1 (12.50%) C# Developer
4 1 (12.50%) Firmware Developer
4 1 (12.50%) Full Stack Developer
4 1 (12.50%) JavaScript Developer
4 1 (12.50%) Python Developer
4 1 (12.50%) Test Automation Developer
Libraries, Frameworks & Software Standards
1 6 (75.00%) .NET
2 5 (62.50%) JSON
3 4 (50.00%) AngularJS
4 3 (37.50%) .NET Framework
4 3 (37.50%) CSS
4 3 (37.50%) HTML
4 3 (37.50%) REST
5 2 (25.00%) MFC
5 2 (25.00%) WPF
5 2 (25.00%) XML
6 1 (12.50%) Angular 2
6 1 (12.50%) Entity Framework
6 1 (12.50%) React
Miscellaneous
1 3 (37.50%) Mobile App
1 3 (37.50%) User Experience
Operating Systems
1 2 (25.00%) Windows
Processes & Methodologies
1 6 (75.00%) Agile Software Development
1 6 (75.00%) BDD
2 5 (62.50%) Scrum
3 4 (50.00%) Front End Development
3 4 (50.00%) Kanban
4 3 (37.50%) Mobile Development
4 3 (37.50%) Test Automation
5 1 (12.50%) API Testing
5 1 (12.50%) Continuous Integration
5 1 (12.50%) Deployment Automation
5 1 (12.50%) E-Commerce
5 1 (12.50%) SDLC
5 1 (12.50%) Web Development
Programming Languages
1 6 (75.00%) C#
2 5 (62.50%) JavaScript
3 4 (50.00%) TypeScript
4 3 (37.50%) Bourne shell
5 1 (12.50%) Python
5 1 (12.50%) SQL
Quality Assurance & Compliance
1 1 (12.50%) QA
System Software
1 1 (12.50%) Firmware
Vendors
1 2 (25.00%) Microsoft