Period
to 18 January 2018

The following table provides summary statistics for contract job vacancies advertised in Maidenhead 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 January 2018 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)
Berkshire > Maidenhead
6 months to
18 Jan 2018
Same period 2017 Same period 2016
Rank 34 15 28
Rank change year-on-year -19 +13 -
Contract jobs citing TDD 6 21 2
As % of all contract IT jobs advertised in Maidenhead 2.03% 8.68% 1.05%
As % of the Processes & Methodologies category 2.37% 9.63% 1.27%
Number of daily rates quoted 1 13 2
Maidenhead median daily rate £425 £375 £330
Median daily rate % change year-on-year +13.33% +13.64% -
10th Percentile £403 £313 £292
90th Percentile £448 £520 £361
Berkshire median daily rate £400 £413 £388
% change year-on-year -3.03% +6.45% +10.71%
Number of hourly rates quoted 0 0 0
Maidenhead median hourly rate - - -
Berkshire median hourly rate £8.00 - £175.00

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 Maidenhead with a requirement for process or methodology skills.

All Process and Methodology Skills
Maidenhead
Contract vacancies with a requirement for process or methodology skills 253 218 158
As % of all contract IT jobs advertised in Maidenhead 85.76% 90.08% 83.16%
Number of daily rates quoted 94 117 78
Maidenhead median daily rate £455 £425 £350
Median daily rate % change year-on-year +7.06% +21.43% +16.67%
10th Percentile £306 £306 £190
90th Percentile £609 £660 £519
Berkshire median daily rate £425 £401 £400
% change year-on-year +6.12% +0.13% +3.23%
Number of hourly rates quoted 12 10 9
Maidenhead median hourly rate £32.75 £38.75 £30.00
Median hourly rate % change year-on-year -15.48% +29.17% -14.29%
10th Percentile £15.46 £16.84 £14.32
90th Percentile £60.10 £50.75 £48.30
Berkshire median hourly rate £14.50 £17.75 £26.75
% change year-on-year -18.31% -33.64% +33.75%

TDD
Job Vacancy Trend in Maidenhead

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

Job vacancy trend for TDD in Maidenhead

TDD
Contractor Daily Rate Trend in Maidenhead

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

Contractor daily rate trend for TDD in Maidenhead

For the 6 months to 18 January 2018, 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 Maidenhead region with a requirement for TDD.

1 6 (100.00%) Scrum
1 6 (100.00%) Agile Software Development
2 5 (83.33%) Java
2 5 (83.33%) JavaScript
3 4 (66.67%) C#
3 4 (66.67%) C++
3 4 (66.67%) Microservices
3 4 (66.67%) SDLC
4 3 (50.00%) GDPR
4 3 (50.00%) Python
4 3 (50.00%) Data Security
4 3 (50.00%) Technical Architecture
4 3 (50.00%) Software Engineering
4 3 (50.00%) Continuous Integration
4 3 (50.00%) Kanban
4 3 (50.00%) Scala
4 3 (50.00%) Amazon AWS
4 3 (50.00%) Machine Learning
4 3 (50.00%) Big Data
4 3 (50.00%) Functional Testing
4 3 (50.00%) AngularJS
4 3 (50.00%) Go
5 2 (33.33%) BDD
5 2 (33.33%) REST
5 2 (33.33%) QA
5 2 (33.33%) Django
5 2 (33.33%) Git (software)
5 2 (33.33%) Web Development
5 2 (33.33%) .NET
5 2 (33.33%) React

TDD
Co-occurring IT Skills in Maidenhead 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 (16.67%) JBoss
1 1 (16.67%) NServiceBus
Business Applications
1 1 (16.67%) SAP Hybris
Cloud Services
1 3 (50.00%) Amazon AWS
2 1 (16.67%) Microsoft Azure
Database & Business Intelligence
1 3 (50.00%) Big Data
2 1 (16.67%) SQL Server
Development Applications
1 2 (33.33%) Git (software)
2 1 (16.67%) Jenkins
2 1 (16.67%) JIRA
2 1 (16.67%) Team Foundation Server
General
1 1 (16.67%) Finance
Job Titles
1 3 (50.00%) Developer
1 3 (50.00%) Senior Developer
2 1 (16.67%) Architect
2 1 (16.67%) Front End Developer (Client-Side Developer)
2 1 (16.67%) Full Stack Developer
2 1 (16.67%) Head of Development
2 1 (16.67%) Head of Software Development
2 1 (16.67%) Hybris Architect
2 1 (16.67%) SAP Architect
2 1 (16.67%) SAP Technical Architect
2 1 (16.67%) Senior Front-End Developer
2 1 (16.67%) Senior Full Stack Developer
2 1 (16.67%) Technical Architect
Libraries, Frameworks & Software Standards
1 3 (50.00%) AngularJS
2 2 (33.33%) .NET
2 2 (33.33%) Django
2 2 (33.33%) React
2 2 (33.33%) REST
3 1 (16.67%) .NET Framework
3 1 (16.67%) CSS
3 1 (16.67%) EJB
3 1 (16.67%) Entity Framework
3 1 (16.67%) Hibernate
3 1 (16.67%) HTML
3 1 (16.67%) J2EE
3 1 (16.67%) JSP
3 1 (16.67%) Spring
3 1 (16.67%) Struts
3 1 (16.67%) Web Services
3 1 (16.67%) XML
Miscellaneous
1 2 (33.33%) Mobile App
2 1 (16.67%) Computer Science
Processes & Methodologies
1 6 (100.00%) Agile Software Development
1 6 (100.00%) Scrum
2 4 (66.67%) Microservices
2 4 (66.67%) SDLC
3 3 (50.00%) Continuous Integration
3 3 (50.00%) Data Security
3 3 (50.00%) Functional Testing
3 3 (50.00%) Kanban
3 3 (50.00%) Machine Learning
3 3 (50.00%) Software Engineering
3 3 (50.00%) Technical Architecture
4 2 (33.33%) BDD
4 2 (33.33%) Mobile Application Development
4 2 (33.33%) Web Development
5 1 (16.67%) API Development
5 1 (16.67%) DevOps
5 1 (16.67%) Mentoring
5 1 (16.67%) People Management
5 1 (16.67%) Performance Optimisation
5 1 (16.67%) Web Application Development
Programming Languages
1 5 (83.33%) Java
1 5 (83.33%) JavaScript
2 4 (66.67%) C#
2 4 (66.67%) C++
3 3 (50.00%) Go
3 3 (50.00%) Python
3 3 (50.00%) Scala
4 1 (16.67%) SQL
Qualifications
1 1 (16.67%) Computer Science Degree
1 1 (16.67%) Degree
Quality Assurance & Compliance
1 3 (50.00%) GDPR
2 2 (33.33%) QA
Vendors
1 1 (16.67%) hybris
1 1 (16.67%) Microsoft
1 1 (16.67%) MuleSoft
1 1 (16.67%) SAP